Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1 | SkPaint Reference |
| 2 | === |
| 3 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4 | # <a name='Paint'>Paint</a> |
Cary Clark | e4aa371 | 2017-09-15 02:56:12 -0400 | [diff] [blame] | 5 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6 | # <a name='SkPaint'>Class SkPaint</a> |
| 7 | <a href='#Paint'>Paint</a> controls options applied when drawing and measuring. <a href='#Paint'>Paint</a> collects all |
| 8 | options outside of the <a href='SkCanvas_Reference#Clip'>Canvas Clip</a> and <a href='SkCanvas_Reference#Matrix'>Canvas Matrix</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 9 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 10 | Various options apply to text, strokes and fills, and images. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 11 | |
| 12 | Some options may not be implemented on all platforms; in these cases, setting |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 13 | the option has no effect. Some options are conveniences that duplicate <a href='SkCanvas_Reference#Canvas'>Canvas</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 14 | functionality; for instance, text size is identical to matrix scale. |
| 15 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 16 | <a href='#Paint'>Paint</a> options are rarely exclusive; each option modifies a stage of the drawing |
| 17 | pipeline and multiple pipeline stages may be affected by a single <a href='#Paint'>Paint</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 18 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 19 | <a href='#Paint'>Paint</a> collects effects and filters that describe single-pass and multiple-pass |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 20 | algorithms that alter the drawing geometry, color, and transparency. For instance, |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 21 | <a href='#Paint'>Paint</a> does not directly implement dashing or blur, but contains the objects that do so. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 22 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 23 | The objects contained by <a href='#Paint'>Paint</a> are opaque, and cannot be edited outside of the <a href='#Paint'>Paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 24 | to affect it. The implementation is free to defer computations associated with the |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 25 | <a href='#Paint'>Paint</a>, or ignore them altogether. For instance, some GPU implementations draw all |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 26 | <a href='SkPath_Reference#Path'>Path</a> geometries with <a href='#Anti_Alias'>Anti Aliasing</a>, regardless of how <a href='#SkPaint_kAntiAlias_Flag'>SkPaint::kAntiAlias Flag</a> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 27 | is set in <a href='#Paint'>Paint</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 28 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 29 | <a href='#Paint'>Paint</a> describes a single color, a single font, a single image quality, and so on. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 30 | Multiple colors are drawn either by using multiple paints or with objects like |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 31 | <a href='undocumented#Shader'>Shader</a> attached to <a href='#Paint'>Paint</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 32 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 33 | ## Overview |
Cary Clark | 5081eed | 2018-01-22 07:55:48 -0500 | [diff] [blame] | 34 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 35 | <table style='border-collapse: collapse; width: 62.5em'> |
| 36 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 37 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 38 | <tr style='background-color: #f0f0f0; '> |
| 39 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Constant'>Constants</a></td> |
| 40 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>enum and enum class, and their const values</td> |
| 41 | </tr> |
| 42 | <tr> |
| 43 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Constructor'>Constructors</a></td> |
| 44 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>functions that construct <a href='#SkPaint'>SkPaint</a></td> |
| 45 | </tr> |
| 46 | <tr style='background-color: #f0f0f0; '> |
| 47 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Member_Function'>Functions</a></td> |
| 48 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>global and class member functions</td> |
| 49 | </tr> |
| 50 | <tr> |
| 51 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Operator'>Operators</a></td> |
| 52 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>operator overloading methods</td> |
| 53 | </tr> |
| 54 | <tr style='background-color: #f0f0f0; '> |
| 55 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Related_Function'>Related Functions</a></td> |
| 56 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>similar member functions grouped together</td> |
| 57 | </tr> |
| 58 | <tr> |
| 59 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Struct'>Struct Declarations</a></td> |
| 60 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>embedded struct members</td> |
| 61 | </tr> |
| 62 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 63 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 64 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 65 | ## <a name='Related_Function'>Related Function</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 66 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 67 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 68 | SkPaint global, <code>struct</code>, and <code>class</code> related member functions share a topic. |
| 69 | <table style='border-collapse: collapse; width: 62.5em'> |
| 70 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 71 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 72 | <tr style='background-color: #f0f0f0; '> |
| 73 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Alpha_Methods'>Alpha Methods</a></td> |
| 74 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='SkColor_Reference#Alpha'>Alpha</a></td> |
| 75 | </tr> |
| 76 | <tr> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 77 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Anti_Alias'>Anti Alias</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 78 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>approximating coverage with transparency</td> |
| 79 | </tr> |
| 80 | <tr style='background-color: #f0f0f0; '> |
| 81 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Automatic_Hinting'>Automatic Hinting</a></td> |
| 82 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>always adjust glyph paths</td> |
| 83 | </tr> |
| 84 | <tr> |
| 85 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Methods'>Blend Mode Methods</a></td> |
| 86 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Blend_Mode'>Blend Mode</a></td> |
| 87 | </tr> |
| 88 | <tr style='background-color: #f0f0f0; '> |
| 89 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Color_Filter_Methods'>Color Filter Methods</a></td> |
| 90 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Color_Filter'>Color Filter</a></td> |
| 91 | </tr> |
| 92 | <tr> |
| 93 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Color_Methods'>Color Methods</a></td> |
| 94 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='SkColor_Reference#Color'>Color</a></td> |
| 95 | </tr> |
| 96 | <tr style='background-color: #f0f0f0; '> |
| 97 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Device_Text'>Device Text</a></td> |
| 98 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>increase precision of glyph position</td> |
| 99 | </tr> |
| 100 | <tr> |
| 101 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dither'>Dither</a></td> |
| 102 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>distributing color error</td> |
| 103 | </tr> |
| 104 | <tr style='background-color: #f0f0f0; '> |
| 105 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Draw_Looper_Methods'>Draw Looper Methods</a></td> |
| 106 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Draw_Looper'>Draw Looper</a></td> |
| 107 | </tr> |
| 108 | <tr> |
| 109 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Fake_Bold'>Fake Bold</a></td> |
| 110 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>approximate font styles</td> |
| 111 | </tr> |
| 112 | <tr style='background-color: #f0f0f0; '> |
| 113 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Fast_Bounds'>Fast Bounds</a></td> |
| 114 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>approximate area required by <a href='#Paint'>Paint</a></td> |
| 115 | </tr> |
| 116 | <tr> |
| 117 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Fill_Path'>Fill Path</a></td> |
| 118 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>make <a href='SkPath_Reference#Path'>Path</a> from <a href='undocumented#Path_Effect'>Path Effect</a>, stroking</td> |
| 119 | </tr> |
| 120 | <tr style='background-color: #f0f0f0; '> |
| 121 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Filter_Quality_Methods'>Filter Quality Methods</a></td> |
| 122 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Filter_Quality'>Filter Quality</a></td> |
| 123 | </tr> |
| 124 | <tr> |
| 125 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Flags'>Flags</a></td> |
| 126 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>attributes represented by single bits</td> |
| 127 | </tr> |
| 128 | <tr style='background-color: #f0f0f0; '> |
| 129 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a></td> |
| 130 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>custom sized bitmap <a href='undocumented#Glyph'>Glyphs</a></td> |
| 131 | </tr> |
| 132 | <tr> |
| 133 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Font_Metrics'>Font Metrics</a></td> |
| 134 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>common glyph dimensions</td> |
| 135 | </tr> |
| 136 | <tr style='background-color: #f0f0f0; '> |
| 137 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Full_Hinting_Spacing'>Full Hinting Spacing</a></td> |
| 138 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>glyph spacing affected by hinting</td> |
| 139 | </tr> |
| 140 | <tr> |
| 141 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Hinting'>Hinting</a></td> |
| 142 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>glyph outline adjustment</td> |
| 143 | </tr> |
| 144 | <tr style='background-color: #f0f0f0; '> |
| 145 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Image_Filter_Methods'>Image Filter Methods</a></td> |
| 146 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Image_Filter'>Image Filter</a></td> |
| 147 | </tr> |
| 148 | <tr> |
| 149 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Initializers'>Initializers</a></td> |
| 150 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>constructors and initialization</td> |
| 151 | </tr> |
| 152 | <tr style='background-color: #f0f0f0; '> |
| 153 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#LCD_Text'>LCD Text</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 154 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>text relying on the order of RGB stripes</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 155 | </tr> |
| 156 | <tr> |
| 157 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Linear_Text'>Linear Text</a></td> |
| 158 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>selects text rendering as <a href='undocumented#Glyph'>Glyph</a> or <a href='SkPath_Reference#Path'>Path</a></td> |
| 159 | </tr> |
| 160 | <tr style='background-color: #f0f0f0; '> |
| 161 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Management'>Management</a></td> |
| 162 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>paint copying, moving, comparing</td> |
| 163 | </tr> |
| 164 | <tr> |
| 165 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Mask_Filter_Methods'>Mask Filter Methods</a></td> |
| 166 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Mask_Filter'>Mask Filter</a></td> |
| 167 | </tr> |
| 168 | <tr style='background-color: #f0f0f0; '> |
| 169 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Measure_Text'>Measure Text</a></td> |
| 170 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>width, height, bounds of text</td> |
| 171 | </tr> |
| 172 | <tr> |
| 173 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Miter_Limit'>Miter Limit</a></td> |
| 174 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>maximum length of stroked corners</td> |
| 175 | </tr> |
| 176 | <tr style='background-color: #f0f0f0; '> |
| 177 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Path_Effect_Methods'>Path Effect Methods</a></td> |
| 178 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Path_Effect'>Path Effect</a></td> |
| 179 | </tr> |
| 180 | <tr> |
| 181 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Shader_Methods'>Shader Methods</a></td> |
| 182 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Shader'>Shader</a></td> |
| 183 | </tr> |
| 184 | <tr style='background-color: #f0f0f0; '> |
| 185 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Stroke_Cap'>Stroke Cap</a></td> |
| 186 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>decorations at ends of open strokes</td> |
| 187 | </tr> |
| 188 | <tr> |
| 189 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Stroke_Join'>Stroke Join</a></td> |
| 190 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>decoration at corners of strokes</td> |
| 191 | </tr> |
| 192 | <tr style='background-color: #f0f0f0; '> |
| 193 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Stroke_Width'>Stroke Width</a></td> |
| 194 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>thickness perpendicular to geometry</td> |
| 195 | </tr> |
| 196 | <tr> |
| 197 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Style'>Style</a></td> |
| 198 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>geometry filling, stroking</td> |
| 199 | </tr> |
| 200 | <tr style='background-color: #f0f0f0; '> |
| 201 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Style_Fill'>Style Fill</a></td> |
| 202 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>fill and stroke</td> |
| 203 | </tr> |
| 204 | <tr> |
| 205 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Style_Hairline'>Style Hairline</a></td> |
| 206 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>lines and curves with minimal width</td> |
| 207 | </tr> |
| 208 | <tr style='background-color: #f0f0f0; '> |
| 209 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Style_Stroke'>Style Stroke</a></td> |
| 210 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>lines and curves with width</td> |
| 211 | </tr> |
| 212 | <tr> |
| 213 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Subpixel_Text'>Subpixel Text</a></td> |
| 214 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses pixel transparency to represent fractional offset</td> |
| 215 | </tr> |
| 216 | <tr style='background-color: #f0f0f0; '> |
| 217 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Align'>Text Align</a></td> |
| 218 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>text placement relative to position</td> |
| 219 | </tr> |
| 220 | <tr> |
| 221 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Encoding'>Text Encoding</a></td> |
| 222 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>text encoded as characters or <a href='undocumented#Glyph'>Glyphs</a></td> |
| 223 | </tr> |
| 224 | <tr style='background-color: #f0f0f0; '> |
| 225 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Intercepts'>Text Intercepts</a></td> |
| 226 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>advanced underline, strike through</td> |
| 227 | </tr> |
| 228 | <tr> |
| 229 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Path'>Text Path</a></td> |
| 230 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>geometry of <a href='undocumented#Glyph'>Glyphs</a></td> |
| 231 | </tr> |
| 232 | <tr style='background-color: #f0f0f0; '> |
| 233 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Scale_X'>Text Scale X</a></td> |
| 234 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>text horizontal scale</td> |
| 235 | </tr> |
| 236 | <tr> |
| 237 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Size'>Text Size</a></td> |
| 238 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>overall height in points</td> |
| 239 | </tr> |
| 240 | <tr style='background-color: #f0f0f0; '> |
| 241 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Text_Skew_X'>Text Skew X</a></td> |
| 242 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>text horizontal slant</td> |
| 243 | </tr> |
| 244 | <tr> |
| 245 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Typeface_Methods'>Typeface Methods</a></td> |
| 246 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>get and set <a href='undocumented#Typeface'>Typeface</a></td> |
| 247 | </tr> |
| 248 | <tr style='background-color: #f0f0f0; '> |
| 249 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Utility'>Utility</a></td> |
| 250 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>rarely called management functions</td> |
| 251 | </tr> |
| 252 | <tr> |
| 253 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Vertical_Text'>Vertical Text</a></td> |
| 254 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>orient text from top to bottom</td> |
| 255 | </tr> |
| 256 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 257 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 258 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 259 | ## <a name='Constant'>Constant</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 260 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 261 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 262 | SkPaint related constants are defined by <code>enum</code>, <code>enum class</code>, <code>#define</code>, <code>const</code>, and <code>constexpr</code>. |
| 263 | <table style='border-collapse: collapse; width: 62.5em'> |
| 264 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 265 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 266 | <tr style='background-color: #f0f0f0; '> |
| 267 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Align'>Align</a></td> |
| 268 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>glyph locations relative to text position</td> |
| 269 | </tr> |
| 270 | <tr> |
| 271 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Cap'>Cap</a></td> |
| 272 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>start and end geometry on stroked shapes</td> |
| 273 | </tr> |
| 274 | <tr style='background-color: #f0f0f0; '> |
| 275 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Flags'>Flags</a></td> |
| 276 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>values described by bits and masks</td> |
| 277 | </tr> |
| 278 | <tr> |
| 279 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Hinting'>Hinting</a></td> |
| 280 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>level of glyph outline adjustment</td> |
| 281 | </tr> |
| 282 | <tr style='background-color: #f0f0f0; '> |
| 283 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Join'>Join</a></td> |
| 284 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>corner geometry on stroked shapes</td> |
| 285 | </tr> |
| 286 | <tr> |
| 287 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_Style'>Style</a></td> |
| 288 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>stroke, fill, or both</td> |
| 289 | </tr> |
| 290 | <tr style='background-color: #f0f0f0; '> |
| 291 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_TextEncoding'>TextEncoding</a></td> |
| 292 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>character or glyph encoded size</td> |
| 293 | </tr> |
| 294 | <tr> |
| 295 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kAlignCount'>kAlignCount</a></td> |
| 296 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>number of different <a href='#Text_Align'>Text Align</a> values defined</td> |
| 297 | </tr> |
| 298 | <tr style='background-color: #f0f0f0; '> |
| 299 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kAllFlags'>kAllFlags</a></td> |
| 300 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask of all <a href='#SkPaint_Flags'>Flags</a></td> |
| 301 | </tr> |
| 302 | <tr> |
| 303 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 304 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Anti_Alias'>Anti Alias</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 305 | </tr> |
| 306 | <tr style='background-color: #f0f0f0; '> |
| 307 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a></td> |
| 308 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Automatic_Hinting'>Automatic Hinting</a></td> |
| 309 | </tr> |
| 310 | <tr> |
| 311 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kBevel_Join'>kBevel Join</a></td> |
| 312 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>connects outside edges</td> |
| 313 | </tr> |
| 314 | <tr style='background-color: #f0f0f0; '> |
| 315 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kButt_Cap'>kButt Cap</a></td> |
| 316 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>no stroke extension</td> |
| 317 | </tr> |
| 318 | <tr> |
| 319 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kCapCount'>kCapCount</a></td> |
| 320 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>number of different <a href='#Stroke_Cap'>Stroke Cap</a> values defined</td> |
| 321 | </tr> |
| 322 | <tr style='background-color: #f0f0f0; '> |
| 323 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kCenter_Align'>kCenter Align</a></td> |
| 324 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>centers line of glyphs by its width or height</td> |
| 325 | </tr> |
| 326 | <tr> |
| 327 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kDefault_Cap'>kDefault Cap</a></td> |
| 328 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>equivalent to <a href='#SkPaint_kButt_Cap'>kButt Cap</a></td> |
| 329 | </tr> |
| 330 | <tr style='background-color: #f0f0f0; '> |
| 331 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kDefault_Join'>kDefault Join</a></td> |
| 332 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>equivalent to <a href='#SkPaint_kMiter_Join'>kMiter Join</a></td> |
| 333 | </tr> |
| 334 | <tr> |
| 335 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kDither_Flag'>kDither Flag</a></td> |
| 336 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Dither'>Dither</a></td> |
| 337 | </tr> |
| 338 | <tr style='background-color: #f0f0f0; '> |
| 339 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a></td> |
| 340 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a></td> |
| 341 | </tr> |
| 342 | <tr> |
| 343 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a></td> |
| 344 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Fake_Bold'>Fake Bold</a></td> |
| 345 | </tr> |
| 346 | <tr style='background-color: #f0f0f0; '> |
| 347 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kFill_Style'>kFill Style</a></td> |
| 348 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set to fill geometry</td> |
| 349 | </tr> |
| 350 | <tr> |
| 351 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kFull_Hinting'>kFull Hinting</a></td> |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 352 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>modifies glyph outlines for maximum constrast</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 353 | </tr> |
| 354 | <tr style='background-color: #f0f0f0; '> |
| 355 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kGlyphID_TextEncoding'>kGlyphID TextEncoding</a></td> |
| 356 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses two byte words to represent glyph indices</td> |
| 357 | </tr> |
| 358 | <tr> |
| 359 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kJoinCount'>kJoinCount</a></td> |
| 360 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>number of different <a href='#Stroke_Join'>Stroke Join</a> values defined</td> |
| 361 | </tr> |
| 362 | <tr style='background-color: #f0f0f0; '> |
| 363 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a></td> |
| 364 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#LCD_Text'>LCD Text</a></td> |
| 365 | </tr> |
| 366 | <tr> |
| 367 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kLast_Cap'>kLast Cap</a></td> |
| 368 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>largest <a href='#Stroke_Cap'>Stroke Cap</a> value</td> |
| 369 | </tr> |
| 370 | <tr style='background-color: #f0f0f0; '> |
| 371 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kLast_Join'>kLast Join</a></td> |
| 372 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>equivalent to the largest value for <a href='#Stroke_Join'>Stroke Join</a></td> |
| 373 | </tr> |
| 374 | <tr> |
| 375 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kLeft_Align'>kLeft Align</a></td> |
| 376 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>positions glyph by computed font offset</td> |
| 377 | </tr> |
| 378 | <tr style='background-color: #f0f0f0; '> |
| 379 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a></td> |
| 380 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Linear_Text'>Linear Text</a></td> |
| 381 | </tr> |
| 382 | <tr> |
| 383 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kMiter_Join'>kMiter Join</a></td> |
| 384 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>extends to <a href='#Miter_Limit'>Miter Limit</a></td> |
| 385 | </tr> |
| 386 | <tr style='background-color: #f0f0f0; '> |
| 387 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kNo_Hinting'>kNo Hinting</a></td> |
| 388 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>glyph outlines unchanged</td> |
| 389 | </tr> |
| 390 | <tr> |
| 391 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a></td> |
| 392 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>glyph outlines modified to improve constrast</td> |
| 393 | </tr> |
| 394 | <tr style='background-color: #f0f0f0; '> |
| 395 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kRight_Align'>kRight Align</a></td> |
| 396 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>moves lines of glyphs by its width or height</td> |
| 397 | </tr> |
| 398 | <tr> |
| 399 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kRound_Cap'>kRound Cap</a></td> |
| 400 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>adds circle</td> |
| 401 | </tr> |
| 402 | <tr style='background-color: #f0f0f0; '> |
| 403 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kRound_Join'>kRound Join</a></td> |
| 404 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>adds circle</td> |
| 405 | </tr> |
| 406 | <tr> |
| 407 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a></td> |
| 408 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>minimal modification to improve constrast</td> |
| 409 | </tr> |
| 410 | <tr style='background-color: #f0f0f0; '> |
| 411 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kSquare_Cap'>kSquare Cap</a></td> |
| 412 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>adds square</td> |
| 413 | </tr> |
| 414 | <tr> |
| 415 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a></td> |
| 416 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets to stroke and fill geometry</td> |
| 417 | </tr> |
| 418 | <tr style='background-color: #f0f0f0; '> |
| 419 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kStroke_Style'>kStroke Style</a></td> |
| 420 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set to stroke geometry</td> |
| 421 | </tr> |
| 422 | <tr> |
| 423 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kStyleCount'>kStyleCount</a></td> |
| 424 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>number of different <a href='#SkPaint_Style'>Style</a> values defined</td> |
| 425 | </tr> |
| 426 | <tr style='background-color: #f0f0f0; '> |
| 427 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a></td> |
| 428 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Subpixel_Text'>Subpixel Text</a></td> |
| 429 | </tr> |
| 430 | <tr> |
| 431 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kUTF16_TextEncoding'>kUTF16 TextEncoding</a></td> |
| 432 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses two byte words to represent most of Unicode</td> |
| 433 | </tr> |
| 434 | <tr style='background-color: #f0f0f0; '> |
| 435 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kUTF32_TextEncoding'>kUTF32 TextEncoding</a></td> |
| 436 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses four byte words to represent all of Unicode</td> |
| 437 | </tr> |
| 438 | <tr> |
| 439 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a></td> |
| 440 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses bytes to represent UTF-8 or ASCII</td> |
| 441 | </tr> |
| 442 | <tr style='background-color: #f0f0f0; '> |
| 443 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a></td> |
| 444 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>mask for setting <a href='#Vertical_Text'>Vertical Text</a></td> |
| 445 | </tr> |
| 446 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 447 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 448 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 449 | ## <a name='Struct'>Struct</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 450 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 451 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 452 | SkPaint uses C++ structs to declare the public data structures and interfaces. |
| 453 | <table style='border-collapse: collapse; width: 62.5em'> |
| 454 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 455 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 456 | <tr style='background-color: #f0f0f0; '> |
| 457 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics'>FontMetrics</a></td> |
| 458 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>values computed by <a href='undocumented#Font_Manager'>Font Manager</a> using <a href='undocumented#Typeface'>Typeface</a></td> |
| 459 | </tr> |
| 460 | </table> |
| 461 | |
| 462 | |
| 463 | ## <a name='Constructor'>Constructor</a> |
| 464 | |
| 465 | |
| 466 | SkPaint can be constructed or initialized by these functions, including C++ class constructors. |
| 467 | <table style='border-collapse: collapse; width: 62.5em'> |
| 468 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 469 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 470 | <tr style='background-color: #f0f0f0; '> |
| 471 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_empty_constructor'>SkPaint()</a></td> |
| 472 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>constructs with default values</td> |
| 473 | </tr> |
| 474 | <tr> |
| 475 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_move_SkPaint'>SkPaint(SkPaint&& paint)</a></td> |
| 476 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>moves paint without copying it</td> |
| 477 | </tr> |
| 478 | <tr style='background-color: #f0f0f0; '> |
| 479 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_copy_const_SkPaint'>SkPaint(const SkPaint& paint)</a></td> |
| 480 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>makes a shallow copy</td> |
| 481 | </tr> |
| 482 | <tr> |
| 483 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_destructor'>~SkPaint()</a></td> |
| 484 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>decreases <a href='undocumented#Reference_Count'>Reference Count</a> of owned objects</td> |
| 485 | </tr> |
| 486 | </table> |
| 487 | |
| 488 | |
| 489 | ## <a name='Operator'>Operator</a> |
| 490 | |
| 491 | |
| 492 | SkPaint operators inline class member functions with arithmetic equivalents. |
| 493 | <table style='border-collapse: collapse; width: 62.5em'> |
| 494 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 495 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 496 | <tr style='background-color: #f0f0f0; '> |
| 497 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_notequal_operator'>operator!=(const SkPaint& a, const SkPaint& b)</a></td> |
| 498 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>compares paints for inequality</td> |
| 499 | </tr> |
| 500 | <tr> |
| 501 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_move_operator'>operator=(SkPaint&& paint)</a></td> |
| 502 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>moves paint without copying it</td> |
| 503 | </tr> |
| 504 | <tr style='background-color: #f0f0f0; '> |
| 505 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_copy_operator'>operator=(const SkPaint& paint)</a></td> |
| 506 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>makes a shallow copy</td> |
| 507 | </tr> |
| 508 | <tr> |
| 509 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_equal_operator'>operator==(const SkPaint& a, const SkPaint& b)</a></td> |
| 510 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>compares paints for equality</td> |
| 511 | </tr> |
| 512 | </table> |
| 513 | |
| 514 | |
| 515 | ## <a name='Member_Function'>Member Function</a> |
| 516 | |
| 517 | |
| 518 | SkPaint member functions read and modify the structure properties. |
| 519 | <table style='border-collapse: collapse; width: 62.5em'> |
| 520 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 521 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 522 | <tr style='background-color: #f0f0f0; '> |
| 523 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_breakText'>breakText</a></td> |
| 524 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns text that fits in a width</td> |
| 525 | </tr> |
| 526 | <tr> |
| 527 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_canComputeFastBounds'>canComputeFastBounds</a></td> |
| 528 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if settings allow for fast bounds computation</td> |
| 529 | </tr> |
| 530 | <tr style='background-color: #f0f0f0; '> |
| 531 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_computeFastBounds'>computeFastBounds</a></td> |
| 532 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns fill bounds for quick reject tests</td> |
| 533 | </tr> |
| 534 | <tr> |
| 535 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_computeFastStrokeBounds'>computeFastStrokeBounds</a></td> |
| 536 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns stroke bounds for quick reject tests</td> |
| 537 | </tr> |
| 538 | <tr style='background-color: #f0f0f0; '> |
| 539 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_containsText'>containsText</a></td> |
| 540 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if all text corresponds to <a href='undocumented#Glyph'>Glyphs</a></td> |
| 541 | </tr> |
| 542 | <tr> |
| 543 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_countText'>countText</a></td> |
| 544 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns number of <a href='undocumented#Glyph'>Glyphs</a> in text</td> |
| 545 | </tr> |
| 546 | <tr style='background-color: #f0f0f0; '> |
| 547 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_doComputeFastBounds'>doComputeFastBounds</a></td> |
| 548 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns bounds for quick reject tests</td> |
| 549 | </tr> |
| 550 | <tr> |
| 551 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getAlpha'>getAlpha</a></td> |
| 552 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkColor_Reference#Alpha'>Color Alpha</a>, color opacity</td> |
| 553 | </tr> |
| 554 | <tr style='background-color: #f0f0f0; '> |
| 555 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getBlendMode'>getBlendMode</a></td> |
| 556 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Blend_Mode'>Blend Mode</a>, how colors combine with <a href='undocumented#Device'>Device</a></td> |
| 557 | </tr> |
| 558 | <tr> |
| 559 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getColor'>getColor</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 560 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkColor_Reference#Alpha'>Color Alpha</a> and RGB, one drawing color</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 561 | </tr> |
| 562 | <tr style='background-color: #f0f0f0; '> |
| 563 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getColorFilter'>getColorFilter</a></td> |
| 564 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Color_Filter'>Color Filter</a>, how colors are altered</td> |
| 565 | </tr> |
| 566 | <tr> |
| 567 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getDrawLooper'>getDrawLooper</a></td> |
| 568 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Draw_Looper'>Draw Looper</a>, multiple layers</td> |
| 569 | </tr> |
| 570 | <tr style='background-color: #f0f0f0; '> |
| 571 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFillPath'>getFillPath</a></td> |
| 572 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns fill path equivalent to stroke</td> |
| 573 | </tr> |
| 574 | <tr> |
| 575 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFilterQuality'>getFilterQuality</a></td> |
| 576 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Filter_Quality'>Filter Quality</a>, image filtering level</td> |
| 577 | </tr> |
| 578 | <tr style='background-color: #f0f0f0; '> |
| 579 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFlags'>getFlags</a></td> |
| 580 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Flags'>Flags</a> stored in a bit field</td> |
| 581 | </tr> |
| 582 | <tr> |
| 583 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFontBounds'>getFontBounds</a></td> |
| 584 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns union all glyph bounds</td> |
| 585 | </tr> |
| 586 | <tr style='background-color: #f0f0f0; '> |
| 587 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFontMetrics'>getFontMetrics</a></td> |
| 588 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Typeface'>Typeface</a> metrics scaled by text size</td> |
| 589 | </tr> |
| 590 | <tr> |
| 591 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getFontSpacing'>getFontSpacing</a></td> |
| 592 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns recommended spacing between lines</td> |
| 593 | </tr> |
| 594 | <tr style='background-color: #f0f0f0; '> |
| 595 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getHash'>getHash</a></td> |
| 596 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns a shallow hash for equality checks</td> |
| 597 | </tr> |
| 598 | <tr> |
| 599 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getHinting'>getHinting</a></td> |
| 600 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Hinting'>Hinting</a>, glyph outline adjustment level</td> |
| 601 | </tr> |
| 602 | <tr style='background-color: #f0f0f0; '> |
| 603 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getImageFilter'>getImageFilter</a></td> |
| 604 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Image_Filter'>Image Filter</a>, alter pixels; blur</td> |
| 605 | </tr> |
| 606 | <tr> |
| 607 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getMaskFilter'>getMaskFilter</a></td> |
| 608 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Mask_Filter'>Mask Filter</a>, alterations to <a href='undocumented#Mask_Alpha'>Mask Alpha</a></td> |
| 609 | </tr> |
| 610 | <tr style='background-color: #f0f0f0; '> |
| 611 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getPathEffect'>getPathEffect</a></td> |
| 612 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Path_Effect'>Path Effect</a>, modifications to path geometry; dashing</td> |
| 613 | </tr> |
| 614 | <tr> |
| 615 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getPosTextHIntercepts'>getPosTextHIntercepts</a></td> |
| 616 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns where lines intersect horizontally positioned text; underlines</td> |
| 617 | </tr> |
| 618 | <tr style='background-color: #f0f0f0; '> |
| 619 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getPosTextIntercepts'>getPosTextIntercepts</a></td> |
| 620 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns where lines intersect positioned text; underlines</td> |
| 621 | </tr> |
| 622 | <tr> |
| 623 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getPosTextPath'>getPosTextPath</a></td> |
| 624 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkPath_Reference#Path'>Path</a> equivalent to positioned text</td> |
| 625 | </tr> |
| 626 | <tr style='background-color: #f0f0f0; '> |
| 627 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getShader'>getShader</a></td> |
| 628 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Shader'>Shader</a>, multiple drawing colors; gradients</td> |
| 629 | </tr> |
| 630 | <tr> |
| 631 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getStrokeCap'>getStrokeCap</a></td> |
| 632 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Cap'>Cap</a>, the area drawn at path ends</td> |
| 633 | </tr> |
| 634 | <tr style='background-color: #f0f0f0; '> |
| 635 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getStrokeJoin'>getStrokeJoin</a></td> |
| 636 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Join'>Join</a>, geometry on path corners</td> |
| 637 | </tr> |
| 638 | <tr> |
| 639 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getStrokeMiter'>getStrokeMiter</a></td> |
| 640 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#Miter_Limit'>Miter Limit</a>, angles with sharp corners</td> |
| 641 | </tr> |
| 642 | <tr style='background-color: #f0f0f0; '> |
| 643 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getStrokeWidth'>getStrokeWidth</a></td> |
| 644 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns thickness of the stroke</td> |
| 645 | </tr> |
| 646 | <tr> |
| 647 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getStyle'>getStyle</a></td> |
| 648 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Style'>Style</a>: stroke, fill, or both</td> |
| 649 | </tr> |
| 650 | <tr style='background-color: #f0f0f0; '> |
| 651 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextAlign'>getTextAlign</a></td> |
| 652 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkPaint_Align'>Align</a>: left, center, or right</td> |
| 653 | </tr> |
| 654 | <tr> |
| 655 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextBlobIntercepts'>getTextBlobIntercepts</a></td> |
| 656 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns where lines intersect <a href='undocumented#Text_Blob'>Text Blob</a>; underlines</td> |
| 657 | </tr> |
| 658 | <tr style='background-color: #f0f0f0; '> |
| 659 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextEncoding'>getTextEncoding</a></td> |
| 660 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns character or glyph encoded size</td> |
| 661 | </tr> |
| 662 | <tr> |
| 663 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextIntercepts'>getTextIntercepts</a></td> |
| 664 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns where lines intersect text; underlines</td> |
| 665 | </tr> |
| 666 | <tr style='background-color: #f0f0f0; '> |
| 667 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextPath'>getTextPath</a></td> |
| 668 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkPath_Reference#Path'>Path</a> equivalent to text</td> |
| 669 | </tr> |
| 670 | <tr> |
| 671 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextScaleX'>getTextScaleX</a></td> |
| 672 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns the text horizontal scale; condensed text</td> |
| 673 | </tr> |
| 674 | <tr style='background-color: #f0f0f0; '> |
| 675 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextSize'>getTextSize</a></td> |
| 676 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns text size in points</td> |
| 677 | </tr> |
| 678 | <tr> |
| 679 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextSkewX'>getTextSkewX</a></td> |
| 680 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns the text horizontal skew; oblique text</td> |
| 681 | </tr> |
| 682 | <tr style='background-color: #f0f0f0; '> |
| 683 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTextWidths'>getTextWidths</a></td> |
| 684 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns advance and bounds for each glyph in text</td> |
| 685 | </tr> |
| 686 | <tr> |
| 687 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_getTypeface'>getTypeface</a></td> |
| 688 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Typeface'>Typeface</a>, font description</td> |
| 689 | </tr> |
| 690 | <tr style='background-color: #f0f0f0; '> |
| 691 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_glyphsToUnichars'>glyphsToUnichars</a></td> |
| 692 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>converts <a href='undocumented#Glyph'>Glyphs</a> into text</td> |
| 693 | </tr> |
| 694 | <tr> |
| 695 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isAntiAlias'>isAntiAlias</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 696 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Anti_Alias'>Anti Alias</a> is set</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 697 | </tr> |
| 698 | <tr style='background-color: #f0f0f0; '> |
| 699 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isAutohinted'>isAutohinted</a></td> |
| 700 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='undocumented#Glyph'>Glyphs</a> are always hinted</td> |
| 701 | </tr> |
| 702 | <tr> |
| 703 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isDither'>isDither</a></td> |
| 704 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Dither'>Dither</a> is set</td> |
| 705 | </tr> |
| 706 | <tr style='background-color: #f0f0f0; '> |
| 707 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isEmbeddedBitmapText'>isEmbeddedBitmapText</a></td> |
| 708 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> is set</td> |
| 709 | </tr> |
| 710 | <tr> |
| 711 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isFakeBoldText'>isFakeBoldText</a></td> |
| 712 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Fake_Bold'>Fake Bold</a> is set</td> |
| 713 | </tr> |
| 714 | <tr style='background-color: #f0f0f0; '> |
| 715 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isLCDRenderText'>isLCDRenderText</a></td> |
| 716 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#LCD_Text'>LCD Text</a> is set</td> |
| 717 | </tr> |
| 718 | <tr> |
| 719 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isLinearText'>isLinearText</a></td> |
| 720 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if text is converted to <a href='SkPath_Reference#Path'>Path</a></td> |
| 721 | </tr> |
| 722 | <tr style='background-color: #f0f0f0; '> |
| 723 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isSrcOver'>isSrcOver</a></td> |
| 724 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='undocumented#Blend_Mode'>Blend Mode</a> is <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a></td> |
| 725 | </tr> |
| 726 | <tr> |
| 727 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isSubpixelText'>isSubpixelText</a></td> |
| 728 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Subpixel_Text'>Subpixel Text</a> is set</td> |
| 729 | </tr> |
| 730 | <tr style='background-color: #f0f0f0; '> |
| 731 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_isVerticalText'>isVerticalText</a></td> |
| 732 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Vertical_Text'>Vertical Text</a> is set</td> |
| 733 | </tr> |
| 734 | <tr> |
| 735 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_measureText'>measureText</a></td> |
| 736 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns advance width and bounds of text</td> |
| 737 | </tr> |
| 738 | <tr style='background-color: #f0f0f0; '> |
| 739 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_nothingToDraw'>nothingToDraw</a></td> |
| 740 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Paint'>Paint</a> prevents all drawing</td> |
| 741 | </tr> |
| 742 | <tr> |
| 743 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refColorFilter'>refColorFilter</a></td> |
| 744 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Color_Filter'>Color Filter</a>, how colors are altered</td> |
| 745 | </tr> |
| 746 | <tr style='background-color: #f0f0f0; '> |
| 747 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refDrawLooper'>refDrawLooper</a></td> |
| 748 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Draw_Looper'>Draw Looper</a>, multiple layers</td> |
| 749 | </tr> |
| 750 | <tr> |
| 751 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refImageFilter'>refImageFilter</a></td> |
| 752 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Image_Filter'>Image Filter</a>, alter pixels; blur</td> |
| 753 | </tr> |
| 754 | <tr style='background-color: #f0f0f0; '> |
| 755 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refMaskFilter'>refMaskFilter</a></td> |
| 756 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Mask_Filter'>Mask Filter</a>, alterations to <a href='undocumented#Mask_Alpha'>Mask Alpha</a></td> |
| 757 | </tr> |
| 758 | <tr> |
| 759 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refPathEffect'>refPathEffect</a></td> |
| 760 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Path_Effect'>Path Effect</a>, modifications to path geometry; dashing</td> |
| 761 | </tr> |
| 762 | <tr style='background-color: #f0f0f0; '> |
| 763 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refShader'>refShader</a></td> |
| 764 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Shader'>Shader</a>, multiple drawing colors; gradients</td> |
| 765 | </tr> |
| 766 | <tr> |
| 767 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_refTypeface'>refTypeface</a></td> |
| 768 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>references <a href='undocumented#Typeface'>Typeface</a>, font description</td> |
| 769 | </tr> |
| 770 | <tr style='background-color: #f0f0f0; '> |
| 771 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_reset'>reset</a></td> |
| 772 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets to default values</td> |
| 773 | </tr> |
| 774 | <tr> |
| 775 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setARGB'>setARGB</a></td> |
| 776 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets color by component</td> |
| 777 | </tr> |
| 778 | <tr style='background-color: #f0f0f0; '> |
| 779 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setAlpha'>setAlpha</a></td> |
| 780 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='SkColor_Reference#Alpha'>Color Alpha</a>, color opacity</td> |
| 781 | </tr> |
| 782 | <tr> |
| 783 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setAntiAlias'>setAntiAlias</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 784 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Anti_Alias'>Anti Alias</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 785 | </tr> |
| 786 | <tr style='background-color: #f0f0f0; '> |
| 787 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setAutohinted'>setAutohinted</a></td> |
| 788 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Glyph'>Glyphs</a> to always be hinted</td> |
| 789 | </tr> |
| 790 | <tr> |
| 791 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setBlendMode'>setBlendMode</a></td> |
| 792 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Blend_Mode'>Blend Mode</a>, how colors combine with destination</td> |
| 793 | </tr> |
| 794 | <tr style='background-color: #f0f0f0; '> |
| 795 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setColor'>setColor</a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 796 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='SkColor_Reference#Alpha'>Color Alpha</a> and RGB, one drawing color</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 797 | </tr> |
| 798 | <tr> |
| 799 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setColorFilter'>setColorFilter</a></td> |
| 800 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Color_Filter'>Color Filter</a>, alters color</td> |
| 801 | </tr> |
| 802 | <tr style='background-color: #f0f0f0; '> |
| 803 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setDither'>setDither</a></td> |
| 804 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Dither'>Dither</a></td> |
| 805 | </tr> |
| 806 | <tr> |
| 807 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setDrawLooper'>setDrawLooper</a></td> |
| 808 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Draw_Looper'>Draw Looper</a>, multiple layers</td> |
| 809 | </tr> |
| 810 | <tr style='background-color: #f0f0f0; '> |
| 811 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setEmbeddedBitmapText'>setEmbeddedBitmapText</a></td> |
| 812 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a></td> |
| 813 | </tr> |
| 814 | <tr> |
| 815 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setFakeBoldText'>setFakeBoldText</a></td> |
| 816 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Fake_Bold'>Fake Bold</a></td> |
| 817 | </tr> |
| 818 | <tr style='background-color: #f0f0f0; '> |
| 819 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setFilterQuality'>setFilterQuality</a></td> |
| 820 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Filter_Quality'>Filter Quality</a>, the image filtering level</td> |
| 821 | </tr> |
| 822 | <tr> |
| 823 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setFlags'>setFlags</a></td> |
| 824 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets multiple <a href='#SkPaint_Flags'>Flags</a> in a bit field</td> |
| 825 | </tr> |
| 826 | <tr style='background-color: #f0f0f0; '> |
| 827 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setHinting'>setHinting</a></td> |
| 828 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#SkPaint_Hinting'>Hinting</a>, glyph outline adjustment level</td> |
| 829 | </tr> |
| 830 | <tr> |
| 831 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setImageFilter'>setImageFilter</a></td> |
| 832 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Image_Filter'>Image Filter</a>, alter pixels; blur</td> |
| 833 | </tr> |
| 834 | <tr style='background-color: #f0f0f0; '> |
| 835 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setLCDRenderText'>setLCDRenderText</a></td> |
| 836 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#LCD_Text'>LCD Text</a></td> |
| 837 | </tr> |
| 838 | <tr> |
| 839 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setLinearText'>setLinearText</a></td> |
| 840 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>converts to <a href='SkPath_Reference#Path'>Path</a> before draw or measure</td> |
| 841 | </tr> |
| 842 | <tr style='background-color: #f0f0f0; '> |
| 843 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setMaskFilter'>setMaskFilter</a></td> |
| 844 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Mask_Filter'>Mask Filter</a>, alterations to <a href='undocumented#Mask_Alpha'>Mask Alpha</a></td> |
| 845 | </tr> |
| 846 | <tr> |
| 847 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setPathEffect'>setPathEffect</a></td> |
| 848 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Path_Effect'>Path Effect</a>, modifications to path geometry; dashing</td> |
| 849 | </tr> |
| 850 | <tr style='background-color: #f0f0f0; '> |
| 851 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setShader'>setShader</a></td> |
| 852 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Shader'>Shader</a>, multiple drawing colors; gradients</td> |
| 853 | </tr> |
| 854 | <tr> |
| 855 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setStrokeCap'>setStrokeCap</a></td> |
| 856 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#SkPaint_Cap'>Cap</a>, the area drawn at path ends</td> |
| 857 | </tr> |
| 858 | <tr style='background-color: #f0f0f0; '> |
| 859 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setStrokeJoin'>setStrokeJoin</a></td> |
| 860 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#SkPaint_Join'>Join</a>, geometry on path corners</td> |
| 861 | </tr> |
| 862 | <tr> |
| 863 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setStrokeMiter'>setStrokeMiter</a></td> |
| 864 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#Miter_Limit'>Miter Limit</a>, angles with sharp corners</td> |
| 865 | </tr> |
| 866 | <tr style='background-color: #f0f0f0; '> |
| 867 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setStrokeWidth'>setStrokeWidth</a></td> |
| 868 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets thickness of the stroke</td> |
| 869 | </tr> |
| 870 | <tr> |
| 871 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setStyle'>setStyle</a></td> |
| 872 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#SkPaint_Style'>Style</a>: stroke, fill, or both</td> |
| 873 | </tr> |
| 874 | <tr style='background-color: #f0f0f0; '> |
| 875 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setSubpixelText'>setSubpixelText</a></td> |
| 876 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Subpixel_Text'>Subpixel Text</a></td> |
| 877 | </tr> |
| 878 | <tr> |
| 879 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTextAlign'>setTextAlign</a></td> |
| 880 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='#SkPaint_Align'>Align</a>: left, center, or right</td> |
| 881 | </tr> |
| 882 | <tr style='background-color: #f0f0f0; '> |
| 883 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTextEncoding'>setTextEncoding</a></td> |
| 884 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets character or glyph encoded size</td> |
| 885 | </tr> |
| 886 | <tr> |
| 887 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTextScaleX'>setTextScaleX</a></td> |
| 888 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets the text horizontal scale; condensed text</td> |
| 889 | </tr> |
| 890 | <tr style='background-color: #f0f0f0; '> |
| 891 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTextSize'>setTextSize</a></td> |
| 892 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets text size in points</td> |
| 893 | </tr> |
| 894 | <tr> |
| 895 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTextSkewX'>setTextSkewX</a></td> |
| 896 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets the text horizontal skew; oblique text</td> |
| 897 | </tr> |
| 898 | <tr style='background-color: #f0f0f0; '> |
| 899 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setTypeface'>setTypeface</a></td> |
| 900 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets <a href='undocumented#Typeface'>Typeface</a>, font description</td> |
| 901 | </tr> |
| 902 | <tr> |
| 903 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_setVerticalText'>setVerticalText</a></td> |
| 904 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>sets or clears <a href='#Vertical_Text'>Vertical Text</a></td> |
| 905 | </tr> |
| 906 | <tr style='background-color: #f0f0f0; '> |
| 907 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_textToGlyphs'>textToGlyphs</a></td> |
| 908 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>converts text into glyph indices</td> |
| 909 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 910 | </table> |
| 911 | |
| 912 | |
| 913 | ## <a name='Initializers'>Initializers</a> |
| 914 | |
| 915 | <a name='SkPaint_empty_constructor'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 916 | ## SkPaint |
| 917 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 918 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 919 | <a href='#SkPaint'>SkPaint</a>() |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 920 | </pre> |
| 921 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 922 | Constructs <a href='#Paint'>Paint</a> with default values. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 923 | |
| 924 | | attribute | default value | |
| 925 | | --- | --- | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 926 | | <a href='#Anti_Alias'>Anti Alias</a> | false | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 927 | | <a href='undocumented#Blend_Mode'>Blend Mode</a> | <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a> | |
| 928 | | <a href='SkColor_Reference#Color'>Color</a> | <a href='SkColor_Reference#SK_ColorBLACK'>SK ColorBLACK</a> | |
| 929 | | <a href='SkColor_Reference#Alpha'>Color Alpha</a> | 255 | |
| 930 | | <a href='undocumented#Color_Filter'>Color Filter</a> | nullptr | |
| 931 | | <a href='#Dither'>Dither</a> | false | |
| 932 | | <a href='undocumented#Draw_Looper'>Draw Looper</a> | nullptr | |
| 933 | | <a href='#Fake_Bold'>Fake Bold</a> | false | |
| 934 | | <a href='undocumented#Filter_Quality'>Filter Quality</a> | <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a> | |
| 935 | | <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> | false | |
| 936 | | <a href='#Automatic_Hinting'>Automatic Hinting</a> | false | |
| 937 | | <a href='#Full_Hinting_Spacing'>Full Hinting Spacing</a> | false | |
| 938 | | <a href='#SkPaint_Hinting'>Hinting</a> | <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> | |
| 939 | | <a href='undocumented#Image_Filter'>Image Filter</a> | nullptr | |
| 940 | | <a href='#LCD_Text'>LCD Text</a> | false | |
| 941 | | <a href='#Linear_Text'>Linear Text</a> | false | |
| 942 | | <a href='#Miter_Limit'>Miter Limit</a> | 4 | |
| 943 | | <a href='undocumented#Mask_Filter'>Mask Filter</a> | nullptr | |
| 944 | | <a href='undocumented#Path_Effect'>Path Effect</a> | nullptr | |
| 945 | | <a href='undocumented#Shader'>Shader</a> | nullptr | |
| 946 | | <a href='#SkPaint_Style'>Style</a> | <a href='#SkPaint_kFill_Style'>kFill Style</a> | |
| 947 | | <a href='#Text_Align'>Text Align</a> | <a href='#SkPaint_kLeft_Align'>kLeft Align</a> | |
| 948 | | <a href='#Text_Encoding'>Text Encoding</a> | <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a> | |
| 949 | | <a href='#Text_Scale_X'>Text Scale X</a> | 1 | |
| 950 | | <a href='#Text_Size'>Text Size</a> | 12 | |
| 951 | | <a href='#Text_Skew_X'>Text Skew X</a> | 0 | |
| 952 | | <a href='undocumented#Typeface'>Typeface</a> | nullptr | |
| 953 | | <a href='#Stroke_Cap'>Stroke Cap</a> | <a href='#SkPaint_kButt_Cap'>kButt Cap</a> | |
| 954 | | <a href='#Stroke_Join'>Stroke Join</a> | <a href='#SkPaint_kMiter_Join'>kMiter Join</a> | |
| 955 | | <a href='#Stroke_Width'>Stroke Width</a> | 0 | |
| 956 | | <a href='#Subpixel_Text'>Subpixel Text</a> | false | |
| 957 | | <a href='#Vertical_Text'>Vertical Text</a> | false | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 958 | |
| 959 | The flags, text size, hinting, and miter limit may be overridden at compile time by defining |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 960 | paint default values. The overrides may be included in "SkUserConfig.h" or predefined by the |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 961 | build system. |
| 962 | |
| 963 | ### Return Value |
| 964 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 965 | default initialized <a href='#Paint'>Paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 966 | |
| 967 | ### Example |
| 968 | |
| 969 | <div><fiddle-embed name="c4b2186d85c142a481298f7144295ffd"></fiddle-embed></div> |
| 970 | |
| 971 | --- |
| 972 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 973 | <a name='SkPaint_copy_const_SkPaint'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 974 | ## SkPaint |
| 975 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 976 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 977 | <a href='#SkPaint'>SkPaint</a>(const <a href='#SkPaint'>SkPaint</a>& paint) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 978 | </pre> |
| 979 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 980 | Makes a shallow copy of <a href='#Paint'>Paint</a>. <a href='undocumented#Typeface'>Typeface</a>, <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, |
| 981 | <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, <a href='undocumented#Draw_Looper'>Draw Looper</a>, and <a href='undocumented#Image_Filter'>Image Filter</a> are shared |
| 982 | between the original <a href='#SkPaint_copy_const_SkPaint_paint'>paint</a> and the copy. Objects containing <a href='undocumented#Reference_Count'>Reference Count</a> increment |
Cary Clark | bad5ad7 | 2017-08-03 17:14:08 -0400 | [diff] [blame] | 983 | their references by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 984 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 985 | The referenced objects <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, |
| 986 | <a href='undocumented#Draw_Looper'>Draw Looper</a>, and <a href='undocumented#Image_Filter'>Image Filter</a> cannot be modified after they are created. |
| 987 | This prevents objects with <a href='undocumented#Reference_Count'>Reference Count</a> from being modified once <a href='#Paint'>Paint</a> refers to them. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 988 | |
| 989 | ### Parameters |
| 990 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 991 | <table> <tr> <td><a name='SkPaint_copy_const_SkPaint_paint'><code><strong>paint</strong></code></a></td> |
| 992 | <td>original to copy</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 993 | </tr> |
| 994 | </table> |
| 995 | |
| 996 | ### Return Value |
| 997 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 998 | shallow copy of <a href='#SkPaint_copy_const_SkPaint_paint'>paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 999 | |
| 1000 | ### Example |
| 1001 | |
| 1002 | <div><fiddle-embed name="b99971ad0ef243d617925289d963b62d"> |
| 1003 | |
| 1004 | #### Example Output |
| 1005 | |
| 1006 | ~~~~ |
| 1007 | SK_ColorRED == paint1.getColor() |
| 1008 | SK_ColorBLUE == paint2.getColor() |
| 1009 | ~~~~ |
| 1010 | |
| 1011 | </fiddle-embed></div> |
| 1012 | |
| 1013 | --- |
| 1014 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1015 | <a name='SkPaint_move_SkPaint'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1016 | ## SkPaint |
| 1017 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1018 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1019 | <a href='#SkPaint'>SkPaint</a>(<a href='#SkPaint'>SkPaint</a>&& paint) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1020 | </pre> |
| 1021 | |
Cary Clark | d0530ba | 2017-09-14 11:25:39 -0400 | [diff] [blame] | 1022 | Implements a move constructor to avoid increasing the reference counts |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1023 | of objects referenced by the <a href='#SkPaint_move_SkPaint_paint'>paint</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1024 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1025 | After the call, <a href='#SkPaint_move_SkPaint_paint'>paint</a> is undefined, and can be safely destructed. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1026 | |
| 1027 | ### Parameters |
| 1028 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1029 | <table> <tr> <td><a name='SkPaint_move_SkPaint_paint'><code><strong>paint</strong></code></a></td> |
| 1030 | <td>original to move</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1031 | </tr> |
| 1032 | </table> |
| 1033 | |
| 1034 | ### Return Value |
| 1035 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1036 | content of <a href='#SkPaint_move_SkPaint_paint'>paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1037 | |
| 1038 | ### Example |
| 1039 | |
| 1040 | <div><fiddle-embed name="8ed1488a503cd5282b86a51614aa90b1"> |
| 1041 | |
| 1042 | #### Example Output |
| 1043 | |
| 1044 | ~~~~ |
| 1045 | path effect unique: true |
| 1046 | ~~~~ |
| 1047 | |
| 1048 | </fiddle-embed></div> |
| 1049 | |
| 1050 | --- |
| 1051 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1052 | <a name='SkPaint_reset'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1053 | ## reset |
| 1054 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1055 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1056 | void <a href='#SkPaint_reset'>reset</a>() |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1057 | </pre> |
| 1058 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1059 | Sets all <a href='#Paint'>Paint</a> contents to their initial values. This is equivalent to replacing |
| 1060 | <a href='#Paint'>Paint</a> with the result of <a href='#SkPaint_empty_constructor'>SkPaint()</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1061 | |
| 1062 | ### Example |
| 1063 | |
| 1064 | <div><fiddle-embed name="ef269937ade7e7353635121d9a64f9f7"> |
| 1065 | |
| 1066 | #### Example Output |
| 1067 | |
| 1068 | ~~~~ |
| 1069 | paint1 == paint2 |
| 1070 | ~~~~ |
| 1071 | |
| 1072 | </fiddle-embed></div> |
| 1073 | |
| 1074 | --- |
| 1075 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1076 | <a name='SkPaint_destructor'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1077 | ## ~SkPaint |
| 1078 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1079 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1080 | <a href='#SkPaint_destructor'>~SkPaint</a>() |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1081 | </pre> |
| 1082 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1083 | Decreases <a href='#Paint'>Paint</a> <a href='undocumented#Reference_Count'>Reference Count</a> of owned objects: <a href='undocumented#Typeface'>Typeface</a>, <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, |
| 1084 | <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, <a href='undocumented#Draw_Looper'>Draw Looper</a>, and <a href='undocumented#Image_Filter'>Image Filter</a>. If the |
| 1085 | objects containing <a href='undocumented#Reference_Count'>Reference Count</a> go to zero, they are deleted. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1086 | |
| 1087 | --- |
| 1088 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1089 | ## <a name='Management'>Management</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1090 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1091 | <a name='SkPaint_copy_operator'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1092 | ## operator= |
| 1093 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1094 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1095 | <a href='#SkPaint'>SkPaint</a>& <a href='#SkPaint_copy_operator'>operator=(const SkPaint& paint)</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1096 | </pre> |
| 1097 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1098 | Makes a shallow copy of <a href='#Paint'>Paint</a>. <a href='undocumented#Typeface'>Typeface</a>, <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, |
| 1099 | <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, <a href='undocumented#Draw_Looper'>Draw Looper</a>, and <a href='undocumented#Image_Filter'>Image Filter</a> are shared |
| 1100 | between the original <a href='#SkPaint_copy_operator_paint'>paint</a> and the copy. Objects containing <a href='undocumented#Reference_Count'>Reference Count</a> in the |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1101 | prior destination are decreased by one, and the referenced objects are deleted if the |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1102 | resulting count is zero. Objects containing <a href='undocumented#Reference_Count'>Reference Count</a> in the parameter <a href='#SkPaint_copy_operator_paint'>paint</a> |
| 1103 | are increased by one. <a href='#SkPaint_copy_operator_paint'>paint</a> is unmodified. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1104 | |
| 1105 | ### Parameters |
| 1106 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1107 | <table> <tr> <td><a name='SkPaint_copy_operator_paint'><code><strong>paint</strong></code></a></td> |
| 1108 | <td>original to copy</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1109 | </tr> |
| 1110 | </table> |
| 1111 | |
| 1112 | ### Return Value |
| 1113 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1114 | content of <a href='#SkPaint_copy_operator_paint'>paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1115 | |
| 1116 | ### Example |
| 1117 | |
| 1118 | <div><fiddle-embed name="b476a9088f80dece176ed577807d3992"> |
| 1119 | |
| 1120 | #### Example Output |
| 1121 | |
| 1122 | ~~~~ |
| 1123 | SK_ColorRED == paint1.getColor() |
| 1124 | SK_ColorRED == paint2.getColor() |
| 1125 | ~~~~ |
| 1126 | |
| 1127 | </fiddle-embed></div> |
| 1128 | |
| 1129 | --- |
| 1130 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1131 | <a name='SkPaint_move_operator'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1132 | ## operator= |
| 1133 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1134 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1135 | <a href='#SkPaint'>SkPaint</a>& <a href='#SkPaint_move_operator'>operator=(SkPaint&& paint)</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1136 | </pre> |
| 1137 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1138 | Moves the <a href='#SkPaint_move_operator_paint'>paint</a> to avoid increasing the reference counts |
| 1139 | of objects referenced by the <a href='#SkPaint_move_operator_paint'>paint</a> parameter. Objects containing <a href='undocumented#Reference_Count'>Reference Count</a> in the |
Cary Clark | bad5ad7 | 2017-08-03 17:14:08 -0400 | [diff] [blame] | 1140 | prior destination are decreased by one; those objects are deleted if the resulting count |
| 1141 | is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1142 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1143 | After the call, <a href='#SkPaint_move_operator_paint'>paint</a> is undefined, and can be safely destructed. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1144 | |
| 1145 | ### Parameters |
| 1146 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1147 | <table> <tr> <td><a name='SkPaint_move_operator_paint'><code><strong>paint</strong></code></a></td> |
| 1148 | <td>original to move</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1149 | </tr> |
| 1150 | </table> |
| 1151 | |
| 1152 | ### Return Value |
| 1153 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1154 | content of <a href='#SkPaint_move_operator_paint'>paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1155 | |
| 1156 | ### Example |
| 1157 | |
| 1158 | <div><fiddle-embed name="9fb7459b097d713f5f1fe5675afe14f5"> |
| 1159 | |
| 1160 | #### Example Output |
| 1161 | |
| 1162 | ~~~~ |
| 1163 | SK_ColorRED == paint2.getColor() |
| 1164 | ~~~~ |
| 1165 | |
| 1166 | </fiddle-embed></div> |
| 1167 | |
| 1168 | --- |
| 1169 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1170 | <a name='SkPaint_equal_operator'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1171 | ## operator== |
| 1172 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1173 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1174 | bool <a href='#SkPaint_equal_operator'>operator==(const SkPaint& a, const SkPaint& b)</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1175 | </pre> |
| 1176 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1177 | Compares <a href='#SkPaint_equal_operator_a'>a</a> and <a href='#SkPaint_equal_operator_b'>b</a>, and returns true if <a href='#SkPaint_equal_operator_a'>a</a> and <a href='#SkPaint_equal_operator_b'>b</a> are equivalent. May return false |
| 1178 | if <a href='undocumented#Typeface'>Typeface</a>, <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, |
| 1179 | <a href='undocumented#Draw_Looper'>Draw Looper</a>, or <a href='undocumented#Image_Filter'>Image Filter</a> have identical contents but different pointers. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1180 | |
| 1181 | ### Parameters |
| 1182 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1183 | <table> <tr> <td><a name='SkPaint_equal_operator_a'><code><strong>a</strong></code></a></td> |
| 1184 | <td><a href='#Paint'>Paint</a> to compare</td> |
| 1185 | </tr> |
| 1186 | <tr> <td><a name='SkPaint_equal_operator_b'><code><strong>b</strong></code></a></td> |
| 1187 | <td><a href='#Paint'>Paint</a> to compare</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1188 | </tr> |
| 1189 | </table> |
| 1190 | |
| 1191 | ### Return Value |
| 1192 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1193 | true if <a href='#Paint'>Paint</a> pair are equivalent |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1194 | |
| 1195 | ### Example |
| 1196 | |
| 1197 | <div><fiddle-embed name="7481a948e34672720337a631830586dd"> |
| 1198 | |
| 1199 | #### Example Output |
| 1200 | |
| 1201 | ~~~~ |
| 1202 | paint1 == paint2 |
| 1203 | paint1 != paint2 |
| 1204 | ~~~~ |
| 1205 | |
| 1206 | </fiddle-embed></div> |
| 1207 | |
Cary Clark | 06c20f3 | 2018-03-20 15:53:27 -0400 | [diff] [blame] | 1208 | ### See Also |
| 1209 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1210 | <a href='#SkPaint_notequal_operator'>operator!=(const SkPaint& a, const SkPaint& b)</a> |
Cary Clark | 06c20f3 | 2018-03-20 15:53:27 -0400 | [diff] [blame] | 1211 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1212 | --- |
| 1213 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1214 | <a name='SkPaint_notequal_operator'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1215 | ## operator!= |
| 1216 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1217 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1218 | bool <a href='#SkPaint_notequal_operator'>operator!=(const SkPaint& a, const SkPaint& b)</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1219 | </pre> |
| 1220 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1221 | Compares <a href='#SkPaint_notequal_operator_a'>a</a> and <a href='#SkPaint_notequal_operator_b'>b</a>, and returns true if <a href='#SkPaint_notequal_operator_a'>a</a> and <a href='#SkPaint_notequal_operator_b'>b</a> are not equivalent. May return true |
| 1222 | if <a href='undocumented#Typeface'>Typeface</a>, <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Shader'>Shader</a>, <a href='undocumented#Mask_Filter'>Mask Filter</a>, <a href='undocumented#Color_Filter'>Color Filter</a>, |
| 1223 | <a href='undocumented#Draw_Looper'>Draw Looper</a>, or <a href='undocumented#Image_Filter'>Image Filter</a> have identical contents but different pointers. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1224 | |
| 1225 | ### Parameters |
| 1226 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1227 | <table> <tr> <td><a name='SkPaint_notequal_operator_a'><code><strong>a</strong></code></a></td> |
| 1228 | <td><a href='#Paint'>Paint</a> to compare</td> |
| 1229 | </tr> |
| 1230 | <tr> <td><a name='SkPaint_notequal_operator_b'><code><strong>b</strong></code></a></td> |
| 1231 | <td><a href='#Paint'>Paint</a> to compare</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1232 | </tr> |
| 1233 | </table> |
| 1234 | |
| 1235 | ### Return Value |
| 1236 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1237 | true if <a href='#Paint'>Paint</a> pair are not equivalent |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1238 | |
| 1239 | ### Example |
| 1240 | |
| 1241 | <div><fiddle-embed name="b6c8484b1187f555b435ad5369833be4"> |
| 1242 | |
| 1243 | #### Example Output |
| 1244 | |
| 1245 | ~~~~ |
| 1246 | paint1 == paint2 |
| 1247 | paint1 == paint2 |
| 1248 | ~~~~ |
| 1249 | |
| 1250 | </fiddle-embed></div> |
| 1251 | |
Cary Clark | 06c20f3 | 2018-03-20 15:53:27 -0400 | [diff] [blame] | 1252 | ### See Also |
| 1253 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1254 | <a href='#SkPaint_equal_operator'>operator==(const SkPaint& a, const SkPaint& b)</a> |
Cary Clark | 06c20f3 | 2018-03-20 15:53:27 -0400 | [diff] [blame] | 1255 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1256 | --- |
| 1257 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1258 | <a name='SkPaint_getHash'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1259 | ## getHash |
| 1260 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1261 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1262 | uint32_t <a href='#SkPaint_getHash'>getHash</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1263 | </pre> |
| 1264 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1265 | Returns a hash generated from <a href='#Paint'>Paint</a> values and pointers. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1266 | Identical hashes guarantee that the paints are |
| 1267 | equivalent, but differing hashes do not guarantee that the paints have differing |
| 1268 | contents. |
| 1269 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1270 | If <a href='#SkPaint_equal_operator'>operator==(const SkPaint& a, const SkPaint& b)</a> returns true for two paints, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1271 | their hashes are also equal. |
| 1272 | |
| 1273 | The hash returned is platform and implementation specific. |
| 1274 | |
| 1275 | ### Return Value |
| 1276 | |
| 1277 | a shallow hash |
| 1278 | |
| 1279 | ### Example |
| 1280 | |
| 1281 | <div><fiddle-embed name="7f7e1b701361912b344f90ae6b530393"> |
| 1282 | |
| 1283 | #### Example Output |
| 1284 | |
| 1285 | ~~~~ |
| 1286 | paint1 == paint2 |
| 1287 | paint1.getHash() == paint2.getHash() |
| 1288 | ~~~~ |
| 1289 | |
| 1290 | </fiddle-embed></div> |
| 1291 | |
| 1292 | --- |
| 1293 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1294 | ## <a name='Hinting'>Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1295 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1296 | ## <a name='SkPaint_Hinting'>Enum SkPaint::Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1297 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1298 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1299 | enum <a href='#SkPaint_Hinting'>Hinting</a> { |
| 1300 | <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a> = 0, |
| 1301 | <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a> = 1, |
| 1302 | <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> = 2, |
| 1303 | <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a> = 3, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 1304 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1305 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1306 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1307 | <a href='#SkPaint_Hinting'>Hinting</a> adjusts the glyph outlines so that the shape provides a uniform |
| 1308 | look at a given point size on font engines that support it. <a href='#SkPaint_Hinting'>Hinting</a> may have a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1309 | muted effect or no effect at all depending on the platform. |
| 1310 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1311 | The four levels roughly control corresponding features on platforms that use FreeType |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1312 | as the <a href='undocumented#Engine'>Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1313 | |
| 1314 | ### Constants |
| 1315 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1316 | <table style='border-collapse: collapse; width: 62.5em'> |
| 1317 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 1318 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 1319 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 1320 | <tr style='background-color: #f0f0f0; '> |
| 1321 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kNo_Hinting'><code>SkPaint::kNo_Hinting</code></a></td> |
| 1322 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 1323 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1324 | Leaves glyph outlines unchanged from their native representation. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1325 | With FreeType, this is equivalent to the FT_LOAD_NO_HINTING |
| 1326 | bit-field constant supplied to FT_Load_Glyph, which indicates that the vector |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1327 | outline being loaded should not be fitted to the pixel grid but simply scaled |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1328 | to 26.6 fractional pixels. |
| 1329 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1330 | </tr> |
| 1331 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1332 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kSlight_Hinting'><code>SkPaint::kSlight_Hinting</code></a></td> |
| 1333 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 1334 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1335 | Modifies glyph outlines minimally to improve constrast. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1336 | With FreeType, this is equivalent in spirit to the |
| 1337 | FT_LOAD_TARGET_LIGHT value supplied to FT_Load_Glyph. It chooses a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1338 | lighter hinting algorithm for non-monochrome modes. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1339 | Generated <a href='undocumented#Glyph'>Glyphs</a> may be fuzzy but better resemble their original shape. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1340 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1341 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1342 | <tr style='background-color: #f0f0f0; '> |
| 1343 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kNormal_Hinting'><code>SkPaint::kNormal_Hinting</code></a></td> |
| 1344 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 1345 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1346 | Modifies glyph outlines to improve constrast. This is the default. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1347 | With FreeType, this supplies FT_LOAD_TARGET_NORMAL to FT_Load_Glyph, |
| 1348 | choosing the default hinting algorithm, which is optimized for standard |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1349 | gray-level rendering. |
| 1350 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1351 | </tr> |
| 1352 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1353 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kFull_Hinting'><code>SkPaint::kFull_Hinting</code></a></td> |
| 1354 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 1355 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 1356 | Modifies glyph outlines for maximum constrast. With FreeType, this selects |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1357 | FT_LOAD_TARGET_LCD or FT_LOAD_TARGET_LCD_V if <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> is set. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1358 | FT_LOAD_TARGET_LCD is a variant of FT_LOAD_TARGET_NORMAL optimized for |
| 1359 | horizontally decimated LCD displays; FT_LOAD_TARGET_LCD_V is a |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1360 | variant of FT_LOAD_TARGET_NORMAL optimized for vertically decimated LCD displays. |
| 1361 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1362 | </tr> |
| 1363 | </table> |
| 1364 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1365 | On <a href='undocumented#OS_X'>OS X</a> and iOS, hinting controls whether <a href='undocumented#Core_Graphics'>Core Graphics</a> dilates the font outlines |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 1366 | to account for LCD text. No hinting uses <a href='undocumented#Core_Text'>Core Text</a> <a href='undocumented#Grayscale'>Grayscale</a> output. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1367 | Normal hinting uses <a href='undocumented#Core_Text'>Core Text</a> LCD output. If <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> is clear, |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 1368 | the LCD output is reduced to a single <a href='undocumented#Grayscale'>Grayscale</a> channel. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1369 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1370 | On Windows with DirectWrite, <a href='#SkPaint_Hinting'>Hinting</a> has no effect. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1371 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1372 | <a href='#SkPaint_Hinting'>Hinting</a> defaults to <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a>. |
| 1373 | Set <a href='undocumented#SkPaintDefaults_Hinting'>SkPaintDefaults Hinting</a> at compile time to change the default setting. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1374 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1375 | <a name='SkPaint_getHinting'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1376 | ## getHinting |
| 1377 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1378 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1379 | <a href='#SkPaint_Hinting'>Hinting</a> <a href='#SkPaint_getHinting'>getHinting</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1380 | </pre> |
| 1381 | |
| 1382 | Returns level of glyph outline adjustment. |
| 1383 | |
| 1384 | ### Return Value |
| 1385 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1386 | one of: <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a>, <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a>, <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a>, <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1387 | |
| 1388 | ### Example |
| 1389 | |
| 1390 | <div><fiddle-embed name="329e2e5a5919ac431e1c58878a5b99e0"> |
| 1391 | |
| 1392 | #### Example Output |
| 1393 | |
| 1394 | ~~~~ |
| 1395 | SkPaint::kNormal_Hinting == paint.getHinting() |
| 1396 | ~~~~ |
| 1397 | |
| 1398 | </fiddle-embed></div> |
| 1399 | |
| 1400 | --- |
| 1401 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1402 | <a name='SkPaint_setHinting'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1403 | ## setHinting |
| 1404 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1405 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1406 | void <a href='#SkPaint_setHinting'>setHinting</a>(<a href='#SkPaint_Hinting'>Hinting</a> hintingLevel) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1407 | </pre> |
| 1408 | |
| 1409 | Sets level of glyph outline adjustment. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1410 | Does not check for valid values of <a href='#SkPaint_setHinting_hintingLevel'>hintingLevel</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1411 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1412 | | <a href='#SkPaint_Hinting'>Hinting</a> | value | effect on generated glyph outlines | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1413 | | --- | --- | --- | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1414 | | <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a> | 0 | leaves glyph outlines unchanged from their native representation | |
| 1415 | | <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a> | 1 | modifies glyph outlines minimally to improve contrast | |
| 1416 | | <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> | 2 | modifies glyph outlines to improve contrast | |
| 1417 | | <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a> | 3 | modifies glyph outlines for maximum contrast | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1418 | |
| 1419 | ### Parameters |
| 1420 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1421 | <table> <tr> <td><a name='SkPaint_setHinting_hintingLevel'><code><strong>hintingLevel</strong></code></a></td> |
| 1422 | <td>one of: <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a>, <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a>, <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a>, <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1423 | </tr> |
| 1424 | </table> |
| 1425 | |
| 1426 | ### Example |
| 1427 | |
| 1428 | <div><fiddle-embed name="78153fbd3f1000cb33b97bbe831ed34e"> |
| 1429 | |
| 1430 | #### Example Output |
| 1431 | |
| 1432 | ~~~~ |
| 1433 | paint1 == paint2 |
| 1434 | ~~~~ |
| 1435 | |
| 1436 | </fiddle-embed></div> |
| 1437 | |
| 1438 | --- |
| 1439 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1440 | ## <a name='Flags'>Flags</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1441 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1442 | ## <a name='SkPaint_Flags'>Enum SkPaint::Flags</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1443 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1444 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1445 | enum <a href='#SkPaint_Flags'>Flags</a> { |
| 1446 | <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> = 0x01, |
| 1447 | <a href='#SkPaint_kDither_Flag'>kDither Flag</a> = 0x04, |
| 1448 | <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a> = 0x20, |
| 1449 | <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> = 0x40, |
| 1450 | <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> = 0x80, |
| 1451 | <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> = 0x200, |
| 1452 | <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> = 0x400, |
| 1453 | <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a> = 0x800, |
| 1454 | <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> = 0x1000, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1455 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1456 | <a href='#SkPaint_kAllFlags'>kAllFlags</a> = 0xFFFF, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 1457 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1458 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1459 | </pre> |
| 1460 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1461 | The bit values stored in <a href='#SkPaint_Flags'>Flags</a>. |
| 1462 | The default value for <a href='#SkPaint_Flags'>Flags</a>, normally zero, can be changed at compile time |
| 1463 | with a custom definition of <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a>. |
| 1464 | All flags can be read and written explicitly; <a href='#SkPaint_Flags'>Flags</a> allows manipulating |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1465 | multiple settings at once. |
| 1466 | |
| 1467 | ### Constants |
| 1468 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1469 | <table style='border-collapse: collapse; width: 62.5em'> |
| 1470 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 1471 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 1472 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 1473 | <tr style='background-color: #f0f0f0; '> |
| 1474 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kAntiAlias_Flag'><code>SkPaint::kAntiAlias_Flag</code></a></td> |
| 1475 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0001</td> |
| 1476 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1477 | mask for setting Anti_Alias</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1478 | </tr> |
| 1479 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1480 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kDither_Flag'><code>SkPaint::kDither_Flag</code></a></td> |
| 1481 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0004</td> |
| 1482 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1483 | mask for setting Dither</td> |
| 1484 | </tr> |
| 1485 | <tr style='background-color: #f0f0f0; '> |
| 1486 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kFakeBoldText_Flag'><code>SkPaint::kFakeBoldText_Flag</code></a></td> |
| 1487 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0020</td> |
| 1488 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1489 | mask for setting Fake_Bold</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1490 | </tr> |
| 1491 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1492 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kLinearText_Flag'><code>SkPaint::kLinearText_Flag</code></a></td> |
| 1493 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0040</td> |
| 1494 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1495 | mask for setting Linear_Text</td> |
| 1496 | </tr> |
| 1497 | <tr style='background-color: #f0f0f0; '> |
| 1498 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kSubpixelText_Flag'><code>SkPaint::kSubpixelText_Flag</code></a></td> |
| 1499 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0080</td> |
| 1500 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1501 | mask for setting Subpixel_Text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1502 | </tr> |
| 1503 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1504 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kLCDRenderText_Flag'><code>SkPaint::kLCDRenderText_Flag</code></a></td> |
| 1505 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0200</td> |
| 1506 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1507 | mask for setting LCD_Text</td> |
| 1508 | </tr> |
| 1509 | <tr style='background-color: #f0f0f0; '> |
| 1510 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kEmbeddedBitmapText_Flag'><code>SkPaint::kEmbeddedBitmapText_Flag</code></a></td> |
| 1511 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0400</td> |
| 1512 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1513 | mask for setting Font_Embedded_Bitmaps</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1514 | </tr> |
| 1515 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1516 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kAutoHinting_Flag'><code>SkPaint::kAutoHinting_Flag</code></a></td> |
| 1517 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0800</td> |
| 1518 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1519 | mask for setting Automatic_Hinting</td> |
| 1520 | </tr> |
| 1521 | <tr style='background-color: #f0f0f0; '> |
| 1522 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kVerticalText_Flag'><code>SkPaint::kVerticalText_Flag</code></a></td> |
| 1523 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x1000</td> |
| 1524 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1525 | mask for setting Vertical_Text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1526 | </tr> |
| 1527 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1528 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kAllFlags'><code>SkPaint::kAllFlags</code></a></td> |
| 1529 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0xFFFF</td> |
| 1530 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1531 | mask of all <a href='#SkPaint_Flags'>Flags</a>, including private flags and flags reserved for future use</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1532 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1533 | <a href='#SkPaint_Flags'>Flags</a> default to all flags clear, disabling the associated feature. |
| 1534 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1535 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1536 | ## <a name='SkPaint_ReserveFlags'>Enum SkPaint::ReserveFlags</a> |
Cary Clark | 06c20f3 | 2018-03-20 15:53:27 -0400 | [diff] [blame] | 1537 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1538 | Deprecated. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1539 | |
Cary Clark | 4855f78 | 2018-02-06 09:41:53 -0500 | [diff] [blame] | 1540 | soonOnly valid for Android framework. |
| 1541 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1542 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1543 | enum <a href='#SkPaint_ReserveFlags'>ReserveFlags</a> { |
| 1544 | <a href='#SkPaint_kUnderlineText_ReserveFlag'>kUnderlineText ReserveFlag</a> = 0x08, |
| 1545 | <a href='#SkPaint_kStrikeThruText_ReserveFlag'>kStrikeThruText ReserveFlag</a> = 0x10, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 1546 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1547 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1548 | |
| 1549 | ### Constants |
| 1550 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1551 | <table style='border-collapse: collapse; width: 62.5em'> |
| 1552 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 1553 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 1554 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 1555 | <tr style='background-color: #f0f0f0; '> |
| 1556 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kUnderlineText_ReserveFlag'><code>SkPaint::kUnderlineText_ReserveFlag</code></a></td> |
| 1557 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0008</td> |
| 1558 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1559 | Deprecated. |
| 1560 | |
| 1561 | soon</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1562 | </tr> |
| 1563 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1564 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kStrikeThruText_ReserveFlag'><code>SkPaint::kStrikeThruText_ReserveFlag</code></a></td> |
| 1565 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0010</td> |
| 1566 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 1567 | Deprecated. |
| 1568 | |
| 1569 | soon</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1570 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1571 | </table> |
Cary Clark | 4855f78 | 2018-02-06 09:41:53 -0500 | [diff] [blame] | 1572 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1573 | <a name='SkPaint_getFlags'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1574 | ## getFlags |
| 1575 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1576 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1577 | uint32_t <a href='#SkPaint_getFlags'>getFlags</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1578 | </pre> |
| 1579 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1580 | Returns paint settings described by <a href='#SkPaint_Flags'>Flags</a>. Each setting uses one |
| 1581 | bit, and can be tested with <a href='#SkPaint_Flags'>Flags</a> members. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1582 | |
| 1583 | ### Return Value |
| 1584 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1585 | zero, one, or more bits described by <a href='#SkPaint_Flags'>Flags</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1586 | |
| 1587 | ### Example |
| 1588 | |
| 1589 | <div><fiddle-embed name="8a3f8c309533388b01aa66e1267f322d"> |
| 1590 | |
| 1591 | #### Example Output |
| 1592 | |
| 1593 | ~~~~ |
| 1594 | (SkPaint::kAntiAlias_Flag & paint.getFlags()) != 0 |
| 1595 | ~~~~ |
| 1596 | |
| 1597 | </fiddle-embed></div> |
| 1598 | |
| 1599 | --- |
| 1600 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1601 | <a name='SkPaint_setFlags'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1602 | ## setFlags |
| 1603 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1604 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1605 | void <a href='#SkPaint_setFlags'>setFlags</a>(uint32_t flags) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1606 | </pre> |
| 1607 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1608 | Replaces <a href='#SkPaint_Flags'>Flags</a> with <a href='#SkPaint_setFlags_flags'>flags</a>, the union of the <a href='#SkPaint_Flags'>Flags</a> members. |
| 1609 | All <a href='#SkPaint_Flags'>Flags</a> members may be cleared, or one or more may be set. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1610 | |
| 1611 | ### Parameters |
| 1612 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1613 | <table> <tr> <td><a name='SkPaint_setFlags_flags'><code><strong>flags</strong></code></a></td> |
| 1614 | <td>union of <a href='#SkPaint_Flags'>Flags</a> for <a href='#Paint'>Paint</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1615 | </tr> |
| 1616 | </table> |
| 1617 | |
| 1618 | ### Example |
| 1619 | |
| 1620 | <div><fiddle-embed name="54baed3f6bc4b9c31ba664e27767fdc7"> |
| 1621 | |
| 1622 | #### Example Output |
| 1623 | |
| 1624 | ~~~~ |
| 1625 | paint.isAntiAlias() |
| 1626 | paint.isDither() |
| 1627 | ~~~~ |
| 1628 | |
| 1629 | </fiddle-embed></div> |
| 1630 | |
| 1631 | --- |
| 1632 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1633 | ## <a name='Anti_Alias'>Anti Alias</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 1634 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1635 | <a href='#Anti_Alias'>Anti Alias</a> drawing approximates partial pixel coverage with transparency. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1636 | If <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> is clear, pixel centers contained by the shape edge are drawn opaque. |
| 1637 | If <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> is set, pixels are drawn with <a href='SkColor_Reference#Alpha'>Color Alpha</a> equal to their coverage. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1638 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1639 | The rule for <a href='undocumented#Alias'>Aliased</a> pixels is inconsistent across platforms. A shape edge |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1640 | passing through the pixel center may, but is not required to, draw the pixel. |
| 1641 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1642 | <a href='undocumented#Raster_Engine'>Raster Engine</a> draws <a href='undocumented#Alias'>Aliased</a> pixels whose centers are on or to the right of the start of an |
| 1643 | active <a href='SkPath_Reference#Path'>Path</a> edge, and whose center is to the left of the end of the active <a href='SkPath_Reference#Path'>Path</a> edge. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1644 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1645 | A platform may only support <a href='#Anti_Alias'>Anti Aliased</a> drawing. Some GPU-backed platforms use |
| 1646 | <a href='undocumented#Supersampling'>Supersampling</a> to <a href='#Anti_Alias'>Anti Alias</a> all drawing, and have no mechanism to selectively |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1647 | <a href='undocumented#Alias'>Alias</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1648 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1649 | The amount of coverage computed for <a href='#Anti_Alias'>Anti Aliased</a> pixels also varies across platforms. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1650 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1651 | <a href='#Anti_Alias'>Anti Alias</a> is disabled by default. |
| 1652 | <a href='#Anti_Alias'>Anti Alias</a> can be enabled by default by setting <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a> to <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1653 | at compile time. |
| 1654 | |
| 1655 | ### Example |
| 1656 | |
| 1657 | <div><fiddle-embed name="a6575a49467ce8d28bb01cc7638fa04d"><div>A red line is drawn with transparency on the edges to make it look smoother. |
| 1658 | A blue line draws only where the pixel centers are contained. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1659 | The lines are drawn into <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>, then drawn magnified to make the |
| 1660 | <a href='undocumented#Alias'>Aliasing</a> easier to see. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1661 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1662 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1663 | <a name='SkPaint_isAntiAlias'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1664 | ## isAntiAlias |
| 1665 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1666 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1667 | bool <a href='#SkPaint_isAntiAlias'>isAntiAlias</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1668 | </pre> |
| 1669 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1670 | If true, pixels on the active edges of <a href='SkPath_Reference#Path'>Path</a> may be drawn with partial transparency. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1671 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1672 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1673 | |
| 1674 | ### Return Value |
| 1675 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1676 | <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1677 | |
| 1678 | ### Example |
| 1679 | |
| 1680 | <div><fiddle-embed name="d7d5f4f7da7acd5104a652f490c6f7b8"> |
| 1681 | |
| 1682 | #### Example Output |
| 1683 | |
| 1684 | ~~~~ |
| 1685 | paint.isAntiAlias() == !!(paint.getFlags() & SkPaint::kAntiAlias_Flag) |
| 1686 | paint.isAntiAlias() == !!(paint.getFlags() & SkPaint::kAntiAlias_Flag) |
| 1687 | ~~~~ |
| 1688 | |
| 1689 | </fiddle-embed></div> |
| 1690 | |
| 1691 | --- |
| 1692 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1693 | <a name='SkPaint_setAntiAlias'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1694 | ## setAntiAlias |
| 1695 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1696 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1697 | void <a href='#SkPaint_setAntiAlias'>setAntiAlias</a>(bool aa) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1698 | </pre> |
| 1699 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1700 | Requests, but does not require, that <a href='SkPath_Reference#Path'>Path</a> edge pixels draw opaque or with |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1701 | partial transparency. |
| 1702 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1703 | Sets <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> if <a href='#SkPaint_setAntiAlias_aa'>aa</a> is true. |
| 1704 | Clears <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> if <a href='#SkPaint_setAntiAlias_aa'>aa</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1705 | |
| 1706 | ### Parameters |
| 1707 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1708 | <table> <tr> <td><a name='SkPaint_setAntiAlias_aa'><code><strong>aa</strong></code></a></td> |
| 1709 | <td>setting for <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1710 | </tr> |
| 1711 | </table> |
| 1712 | |
| 1713 | ### Example |
| 1714 | |
| 1715 | <div><fiddle-embed name="c2ff148374d01cbef845b223e725905c"> |
| 1716 | |
| 1717 | #### Example Output |
| 1718 | |
| 1719 | ~~~~ |
| 1720 | paint1 == paint2 |
| 1721 | ~~~~ |
| 1722 | |
| 1723 | </fiddle-embed></div> |
| 1724 | |
| 1725 | --- |
| 1726 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1727 | ## <a name='Dither'>Dither</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 1728 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1729 | <a href='#Dither'>Dither</a> increases fidelity by adjusting the color of adjacent pixels. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1730 | This can help to smooth color transitions and reducing banding in gradients. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1731 | Dithering lessens visible banding from <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a> |
| 1732 | and <a href='SkImageInfo_Reference#kRGBA_8888_SkColorType'>kRGBA_8888_SkColorType</a> gradients, |
| 1733 | and improves rendering into a <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a> <a href='SkSurface_Reference#Surface'>Surface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1734 | |
| 1735 | Dithering is always enabled for linear gradients drawing into |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1736 | <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a> <a href='SkSurface_Reference#Surface'>Surface</a> and <a href='SkImageInfo_Reference#kRGBA_8888_SkColorType'>kRGBA_8888_SkColorType</a> <a href='SkSurface_Reference#Surface'>Surface</a>. |
| 1737 | <a href='#Dither'>Dither</a> cannot be enabled for <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a> <a href='SkSurface_Reference#Surface'>Surface</a> and |
| 1738 | <a href='SkImageInfo_Reference#kRGBA_F16_SkColorType'>kRGBA_F16_SkColorType</a> <a href='SkSurface_Reference#Surface'>Surface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1739 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1740 | <a href='#Dither'>Dither</a> is disabled by default. |
| 1741 | <a href='#Dither'>Dither</a> can be enabled by default by setting <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a> to <a href='#SkPaint_kDither_Flag'>kDither Flag</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1742 | at compile time. |
| 1743 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1744 | Some platform implementations may ignore dithering. SetSK_IGNORE_GPU_DITHERto ignore <a href='#Dither'>Dither</a> on <a href='undocumented#GPU_Surface'>GPU Surface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1745 | |
| 1746 | ### Example |
| 1747 | |
| 1748 | <div><fiddle-embed name="8b26507690b71462f44642b911890bbf"><div>Dithering in the bottom half more closely approximates the requested color by |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1749 | alternating nearby colors from pixel to pixel. |
| 1750 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1751 | |
| 1752 | ### Example |
| 1753 | |
| 1754 | <div><fiddle-embed name="76d4d4a7931a48495e4d5f54e073be53"><div>Dithering introduces subtle adjustments to color to smooth gradients. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1755 | Drawing the gradient repeatedly with <a href='undocumented#SkBlendMode_kPlus'>SkBlendMode::kPlus</a> exaggerates the |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1756 | dither, making it easier to see. |
| 1757 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1758 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1759 | <a name='SkPaint_isDither'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1760 | ## isDither |
| 1761 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1762 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1763 | bool <a href='#SkPaint_isDither'>isDither</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1764 | </pre> |
| 1765 | |
| 1766 | If true, color error may be distributed to smooth color transition. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 1767 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1768 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kDither_Flag'>kDither Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1769 | |
| 1770 | ### Return Value |
| 1771 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1772 | <a href='#SkPaint_kDither_Flag'>kDither Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1773 | |
| 1774 | ### Example |
| 1775 | |
| 1776 | <div><fiddle-embed name="f4ce93f6c5e7335436a985377fd980c0"> |
| 1777 | |
| 1778 | #### Example Output |
| 1779 | |
| 1780 | ~~~~ |
| 1781 | paint.isDither() == !!(paint.getFlags() & SkPaint::kDither_Flag) |
| 1782 | paint.isDither() == !!(paint.getFlags() & SkPaint::kDither_Flag) |
| 1783 | ~~~~ |
| 1784 | |
| 1785 | </fiddle-embed></div> |
| 1786 | |
| 1787 | --- |
| 1788 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1789 | <a name='SkPaint_setDither'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1790 | ## setDither |
| 1791 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1792 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1793 | void <a href='#SkPaint_setDither'>setDither</a>(bool dither) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1794 | </pre> |
| 1795 | |
| 1796 | Requests, but does not require, to distribute color error. |
| 1797 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1798 | Sets <a href='#SkPaint_kDither_Flag'>kDither Flag</a> if <a href='#SkPaint_setDither_dither'>dither</a> is true. |
| 1799 | Clears <a href='#SkPaint_kDither_Flag'>kDither Flag</a> if <a href='#SkPaint_setDither_dither'>dither</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1800 | |
| 1801 | ### Parameters |
| 1802 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1803 | <table> <tr> <td><a name='SkPaint_setDither_dither'><code><strong>dither</strong></code></a></td> |
| 1804 | <td>setting for <a href='#SkPaint_kDither_Flag'>kDither Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1805 | </tr> |
| 1806 | </table> |
| 1807 | |
| 1808 | ### Example |
| 1809 | |
| 1810 | <div><fiddle-embed name="69b7162e8324d9239dd02dd9ada2bdff"> |
| 1811 | |
| 1812 | #### Example Output |
| 1813 | |
| 1814 | ~~~~ |
| 1815 | paint1 == paint2 |
| 1816 | ~~~~ |
| 1817 | |
| 1818 | </fiddle-embed></div> |
| 1819 | |
| 1820 | ### See Also |
| 1821 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1822 | <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1823 | |
| 1824 | --- |
| 1825 | |
| 1826 | ### See Also |
| 1827 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1828 | Gradient <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1829 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1830 | ## <a name='Device_Text'>Device Text</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 1831 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1832 | <a href='#LCD_Text'>LCD Text</a> and <a href='#Subpixel_Text'>Subpixel Text</a> increase the precision of glyph position. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1833 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1834 | When set, <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> takes advantage of the organization of RGB stripes that |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1835 | create a color, and relies |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1836 | on the small size of the stripe and visual perception to make the color fringing imperceptible. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1837 | <a href='#LCD_Text'>LCD Text</a> can be enabled on devices that orient stripes horizontally or vertically, and that order |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1838 | the color components as RGB or BGR. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1839 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1840 | <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> uses the pixel transparency to represent a fractional offset. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1841 | As the opaqueness |
| 1842 | of the color increases, the edge of the glyph appears to move towards the outside of the pixel. |
| 1843 | |
| 1844 | Either or both techniques can be enabled. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1845 | <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> and <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> are clear by default. |
| 1846 | <a href='#LCD_Text'>LCD Text</a> or <a href='#Subpixel_Text'>Subpixel Text</a> can be enabled by default by setting <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a> to |
| 1847 | <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> or <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> (or both) at compile time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1848 | |
| 1849 | ### Example |
| 1850 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1851 | <div><fiddle-embed name="4606ae1be792d6bc46d496432f050ee9"><div>Four commas are drawn normally and with combinations of <a href='#LCD_Text'>LCD Text</a> and <a href='#Subpixel_Text'>Subpixel Text</a>. |
| 1852 | When <a href='#Subpixel_Text'>Subpixel Text</a> is disabled, the comma <a href='undocumented#Glyph'>Glyphs</a> are identical, but not evenly spaced. |
| 1853 | When <a href='#Subpixel_Text'>Subpixel Text</a> is enabled, the comma <a href='undocumented#Glyph'>Glyphs</a> are unique, but appear evenly spaced. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 1854 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1855 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1856 | ## <a name='Linear_Text'>Linear Text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1857 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1858 | <a href='#Linear_Text'>Linear Text</a> selects whether text is rendered as a <a href='undocumented#Glyph'>Glyph</a> or as a <a href='SkPath_Reference#Path'>Path</a>. |
| 1859 | If <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> is set, it has the same effect as setting <a href='#SkPaint_Hinting'>Hinting</a> to <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a>. |
| 1860 | If <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> is clear, it is the same as setting <a href='#SkPaint_Hinting'>Hinting</a> to <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1861 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1862 | <a name='SkPaint_isLinearText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1863 | ## isLinearText |
| 1864 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1865 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1866 | bool <a href='#SkPaint_isLinearText'>isLinearText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1867 | </pre> |
| 1868 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1869 | If true, text is converted to <a href='SkPath_Reference#Path'>Path</a> before drawing and measuring. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1870 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1871 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1872 | |
| 1873 | ### Return Value |
| 1874 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1875 | <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1876 | |
| 1877 | ### Example |
| 1878 | |
| 1879 | <div><fiddle-embed name="2890ad644f980637837e6fcb386fb462"></fiddle-embed></div> |
| 1880 | |
| 1881 | ### See Also |
| 1882 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1883 | <a href='#SkPaint_setLinearText'>setLinearText</a> <a href='#SkPaint_Hinting'>Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1884 | |
| 1885 | --- |
| 1886 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1887 | <a name='SkPaint_setLinearText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1888 | ## setLinearText |
| 1889 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1890 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1891 | void <a href='#SkPaint_setLinearText'>setLinearText</a>(bool linearText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1892 | </pre> |
| 1893 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1894 | If true, text is converted to <a href='SkPath_Reference#Path'>Path</a> before drawing and measuring. |
| 1895 | By default, <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> is clear. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1896 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1897 | Sets <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> if <a href='#SkPaint_setLinearText_linearText'>linearText</a> is true. |
| 1898 | Clears <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a> if <a href='#SkPaint_setLinearText_linearText'>linearText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1899 | |
| 1900 | ### Parameters |
| 1901 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1902 | <table> <tr> <td><a name='SkPaint_setLinearText_linearText'><code><strong>linearText</strong></code></a></td> |
| 1903 | <td>setting for <a href='#SkPaint_kLinearText_Flag'>kLinearText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1904 | </tr> |
| 1905 | </table> |
| 1906 | |
| 1907 | ### Example |
| 1908 | |
| 1909 | <div><fiddle-embed name="c93bb912f3bddfb4d96d3ad70ada552b"></fiddle-embed></div> |
| 1910 | |
| 1911 | ### See Also |
| 1912 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1913 | <a href='#SkPaint_isLinearText'>isLinearText</a> <a href='#SkPaint_Hinting'>Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1914 | |
| 1915 | --- |
| 1916 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1917 | ## <a name='Subpixel_Text'>Subpixel Text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1918 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1919 | <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> uses the pixel transparency to represent a fractional offset. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1920 | As the opaqueness |
| 1921 | of the color increases, the edge of the glyph appears to move towards the outside of the pixel. |
| 1922 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1923 | <a name='SkPaint_isSubpixelText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1924 | ## isSubpixelText |
| 1925 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1926 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1927 | bool <a href='#SkPaint_isSubpixelText'>isSubpixelText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1928 | </pre> |
| 1929 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1930 | If true, <a href='undocumented#Glyph'>Glyphs</a> at different sub-pixel positions may differ on pixel edge coverage. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1931 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1932 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1933 | |
| 1934 | ### Return Value |
| 1935 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1936 | <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1937 | |
| 1938 | ### Example |
| 1939 | |
| 1940 | <div><fiddle-embed name="abe9afc0932e2199324ae6cbb396e67c"> |
| 1941 | |
| 1942 | #### Example Output |
| 1943 | |
| 1944 | ~~~~ |
| 1945 | paint.isSubpixelText() == !!(paint.getFlags() & SkPaint::kSubpixelText_Flag) |
| 1946 | paint.isSubpixelText() == !!(paint.getFlags() & SkPaint::kSubpixelText_Flag) |
| 1947 | ~~~~ |
| 1948 | |
| 1949 | </fiddle-embed></div> |
| 1950 | |
| 1951 | --- |
| 1952 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1953 | <a name='SkPaint_setSubpixelText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1954 | ## setSubpixelText |
| 1955 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1956 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1957 | void <a href='#SkPaint_setSubpixelText'>setSubpixelText</a>(bool subpixelText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1958 | </pre> |
| 1959 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1960 | Requests, but does not require, that <a href='undocumented#Glyph'>Glyphs</a> respect sub-pixel positioning. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1961 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1962 | Sets <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> if <a href='#SkPaint_setSubpixelText_subpixelText'>subpixelText</a> is true. |
| 1963 | Clears <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a> if <a href='#SkPaint_setSubpixelText_subpixelText'>subpixelText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1964 | |
| 1965 | ### Parameters |
| 1966 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1967 | <table> <tr> <td><a name='SkPaint_setSubpixelText_subpixelText'><code><strong>subpixelText</strong></code></a></td> |
| 1968 | <td>setting for <a href='#SkPaint_kSubpixelText_Flag'>kSubpixelText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1969 | </tr> |
| 1970 | </table> |
| 1971 | |
| 1972 | ### Example |
| 1973 | |
| 1974 | <div><fiddle-embed name="a77bbc1a4e3be9a8ab0f842f877c5ee4"> |
| 1975 | |
| 1976 | #### Example Output |
| 1977 | |
| 1978 | ~~~~ |
| 1979 | paint1 == paint2 |
| 1980 | ~~~~ |
| 1981 | |
| 1982 | </fiddle-embed></div> |
| 1983 | |
| 1984 | --- |
| 1985 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1986 | ## <a name='LCD_Text'>LCD Text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1987 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1988 | When set, <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> takes advantage of the organization of RGB stripes that |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1989 | create a color, and relies |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1990 | on the small size of the stripe and visual perception to make the color fringing imperceptible. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1991 | <a href='#LCD_Text'>LCD Text</a> can be enabled on devices that orient stripes horizontally or vertically, and that order |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 1992 | the color components as RGB or BGR. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1993 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1994 | <a name='SkPaint_isLCDRenderText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1995 | ## isLCDRenderText |
| 1996 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 1997 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 1998 | bool <a href='#SkPaint_isLCDRenderText'>isLCDRenderText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1999 | </pre> |
| 2000 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2001 | If true, <a href='undocumented#Glyph'>Glyphs</a> may use LCD striping to improve glyph edges. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2002 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2003 | Returns true if <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> is set. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2004 | |
| 2005 | ### Return Value |
| 2006 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2007 | <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2008 | |
| 2009 | ### Example |
| 2010 | |
| 2011 | <div><fiddle-embed name="68e1fd95dd2fd06a333899d2bd2396b9"> |
| 2012 | |
| 2013 | #### Example Output |
| 2014 | |
| 2015 | ~~~~ |
| 2016 | paint.isLCDRenderText() == !!(paint.getFlags() & SkPaint::kLCDRenderText_Flag) |
| 2017 | paint.isLCDRenderText() == !!(paint.getFlags() & SkPaint::kLCDRenderText_Flag) |
| 2018 | ~~~~ |
| 2019 | |
| 2020 | </fiddle-embed></div> |
| 2021 | |
| 2022 | --- |
| 2023 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2024 | <a name='SkPaint_setLCDRenderText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2025 | ## setLCDRenderText |
| 2026 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2027 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2028 | void <a href='#SkPaint_setLCDRenderText'>setLCDRenderText</a>(bool lcdText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2029 | </pre> |
| 2030 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2031 | Requests, but does not require, that <a href='undocumented#Glyph'>Glyphs</a> use LCD striping for glyph edges. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2032 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2033 | Sets <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> if <a href='#SkPaint_setLCDRenderText_lcdText'>lcdText</a> is true. |
| 2034 | Clears <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a> if <a href='#SkPaint_setLCDRenderText_lcdText'>lcdText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2035 | |
| 2036 | ### Parameters |
| 2037 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2038 | <table> <tr> <td><a name='SkPaint_setLCDRenderText_lcdText'><code><strong>lcdText</strong></code></a></td> |
| 2039 | <td>setting for <a href='#SkPaint_kLCDRenderText_Flag'>kLCDRenderText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2040 | </tr> |
| 2041 | </table> |
| 2042 | |
| 2043 | ### Example |
| 2044 | |
| 2045 | <div><fiddle-embed name="50dedf8450159571a3edaf4f0050defe"> |
| 2046 | |
| 2047 | #### Example Output |
| 2048 | |
| 2049 | ~~~~ |
| 2050 | paint1 == paint2 |
| 2051 | ~~~~ |
| 2052 | |
| 2053 | </fiddle-embed></div> |
| 2054 | |
| 2055 | --- |
| 2056 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2057 | ## <a name='Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2058 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2059 | <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> allows selecting custom sized bitmap <a href='undocumented#Glyph'>Glyphs</a>. |
| 2060 | <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> when set chooses an embedded bitmap glyph over an outline contained |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2061 | in a font if the platform supports this option. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2062 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2063 | FreeType selects the bitmap glyph if available when <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> is set, and selects |
| 2064 | the outline glyph if <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> is clear. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2065 | Windows may select the bitmap glyph but is not required to do so. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2066 | <a href='undocumented#OS_X'>OS X</a> and iOS do not support this option. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2067 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2068 | <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> is disabled by default. |
| 2069 | <a href='#Font_Embedded_Bitmaps'>Font Embedded Bitmaps</a> can be enabled by default by setting <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a> to |
| 2070 | <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> at compile time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2071 | |
| 2072 | ### Example |
| 2073 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2074 | <pre style="padding: 1em 1em 1em 1em; font-size: 13px width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2075 | <div>The "hintgasp" TrueType font in the Skia resources/fonts directory |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2076 | includes an embedded bitmap Glyph at odd font sizes. This example works |
| 2077 | on platforms that use FreeType as their Font_Engine. |
| 2078 | Windows may, but is not required to, return a bitmap glyph if |
| 2079 | kEmbeddedBitmapText_Flag is set.</div>SkBitmap bitmap; |
| 2080 | bitmap.allocN32Pixels(30, 15); |
| 2081 | bitmap.eraseColor(0); |
| 2082 | SkCanvas offscreen(bitmap); |
| 2083 | SkPaint paint; |
| 2084 | paint.setAntiAlias(true); |
| 2085 | paint.setTextSize(13); |
Hal Canary | 53e5e7d | 2017-12-08 14:25:14 -0500 | [diff] [blame] | 2086 | paint.setTypeface(MakeResourceAsTypeface("fonts/hintgasp.ttf")); |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2087 | for (bool embedded : { false, true}) { |
| 2088 | paint.setEmbeddedBitmapText(embedded); |
| 2089 | offscreen.drawString("A", embedded ? 5 : 15, 15, paint); |
| 2090 | } |
| 2091 | canvas->drawBitmap(bitmap, 0, 0); |
| 2092 | canvas->scale(10, 10); |
| 2093 | canvas->drawBitmap(bitmap, -2, 1); |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2094 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2095 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2096 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2097 | <a name='SkPaint_isEmbeddedBitmapText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2098 | ## isEmbeddedBitmapText |
| 2099 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2100 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2101 | bool <a href='#SkPaint_isEmbeddedBitmapText'>isEmbeddedBitmapText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2102 | </pre> |
| 2103 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2104 | If true, <a href='undocumented#Engine'>Font Engine</a> may return <a href='undocumented#Glyph'>Glyphs</a> from font bitmaps instead of from outlines. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2105 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2106 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2107 | |
| 2108 | ### Return Value |
| 2109 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2110 | <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2111 | |
| 2112 | ### Example |
| 2113 | |
| 2114 | <div><fiddle-embed name="eba10b27b790e87183ae451b3fc5c4b1"> |
| 2115 | |
| 2116 | #### Example Output |
| 2117 | |
| 2118 | ~~~~ |
| 2119 | paint.isEmbeddedBitmapText() == !!(paint.getFlags() & SkPaint::kEmbeddedBitmapText_Flag) |
| 2120 | paint.isEmbeddedBitmapText() == !!(paint.getFlags() & SkPaint::kEmbeddedBitmapText_Flag) |
| 2121 | ~~~~ |
| 2122 | |
| 2123 | </fiddle-embed></div> |
| 2124 | |
| 2125 | --- |
| 2126 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2127 | <a name='SkPaint_setEmbeddedBitmapText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2128 | ## setEmbeddedBitmapText |
| 2129 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2130 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2131 | void <a href='#SkPaint_setEmbeddedBitmapText'>setEmbeddedBitmapText</a>(bool useEmbeddedBitmapText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2132 | </pre> |
| 2133 | |
| 2134 | Requests, but does not require, to use bitmaps in fonts instead of outlines. |
| 2135 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2136 | Sets <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> if <a href='#SkPaint_setEmbeddedBitmapText_useEmbeddedBitmapText'>useEmbeddedBitmapText</a> is true. |
| 2137 | Clears <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a> if <a href='#SkPaint_setEmbeddedBitmapText_useEmbeddedBitmapText'>useEmbeddedBitmapText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2138 | |
| 2139 | ### Parameters |
| 2140 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2141 | <table> <tr> <td><a name='SkPaint_setEmbeddedBitmapText_useEmbeddedBitmapText'><code><strong>useEmbeddedBitmapText</strong></code></a></td> |
| 2142 | <td>setting for <a href='#SkPaint_kEmbeddedBitmapText_Flag'>kEmbeddedBitmapText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2143 | </tr> |
| 2144 | </table> |
| 2145 | |
| 2146 | ### Example |
| 2147 | |
| 2148 | <div><fiddle-embed name="246dffdd93a484ba4ad7ecf71198a5d4"> |
| 2149 | |
| 2150 | #### Example Output |
| 2151 | |
| 2152 | ~~~~ |
| 2153 | paint1 == paint2 |
| 2154 | ~~~~ |
| 2155 | |
| 2156 | </fiddle-embed></div> |
| 2157 | |
| 2158 | --- |
| 2159 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2160 | ## <a name='Automatic_Hinting'>Automatic Hinting</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2161 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2162 | If <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> or <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a>, <a href='#Automatic_Hinting'>Automatic Hinting</a> |
| 2163 | instructs the <a href='undocumented#Font_Manager'>Font Manager</a> to always hint <a href='undocumented#Glyph'>Glyphs</a>. |
| 2164 | <a href='#Automatic_Hinting'>Automatic Hinting</a> has no effect if <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a> or |
| 2165 | <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2166 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2167 | <a href='#Automatic_Hinting'>Automatic Hinting</a> only affects platforms that use FreeType as the <a href='undocumented#Font_Manager'>Font Manager</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2168 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2169 | <a name='SkPaint_isAutohinted'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2170 | ## isAutohinted |
| 2171 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2172 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2173 | bool <a href='#SkPaint_isAutohinted'>isAutohinted</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2174 | </pre> |
| 2175 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2176 | If true, and if <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> or <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a>, and if |
| 2177 | platform uses FreeType as the <a href='undocumented#Font_Manager'>Font Manager</a>, instruct the <a href='undocumented#Font_Manager'>Font Manager</a> to always hint |
| 2178 | <a href='undocumented#Glyph'>Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2179 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2180 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2181 | |
| 2182 | ### Return Value |
| 2183 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2184 | <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2185 | |
| 2186 | ### Example |
| 2187 | |
| 2188 | <div><fiddle-embed name="aa4781afbe3b90e7ef56a287e5b9ce1e"> |
| 2189 | |
| 2190 | #### Example Output |
| 2191 | |
| 2192 | ~~~~ |
| 2193 | paint.isAutohinted() == !!(paint.getFlags() & SkPaint::kAutoHinting_Flag) |
| 2194 | paint.isAutohinted() == !!(paint.getFlags() & SkPaint::kAutoHinting_Flag) |
| 2195 | ~~~~ |
| 2196 | |
| 2197 | </fiddle-embed></div> |
| 2198 | |
| 2199 | ### See Also |
| 2200 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2201 | <a href='#SkPaint_setAutohinted'>setAutohinted</a> <a href='#SkPaint_Hinting'>Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2202 | |
| 2203 | --- |
| 2204 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2205 | <a name='SkPaint_setAutohinted'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2206 | ## setAutohinted |
| 2207 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2208 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2209 | void <a href='#SkPaint_setAutohinted'>setAutohinted</a>(bool useAutohinter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2210 | </pre> |
| 2211 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2212 | If <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kNormal_Hinting'>kNormal Hinting</a> or <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a> and <a href='#SkPaint_setAutohinted_useAutohinter'>useAutohinter</a> is set, |
| 2213 | instruct the <a href='undocumented#Font_Manager'>Font Manager</a> to always hint <a href='undocumented#Glyph'>Glyphs</a>. |
| 2214 | <a href='#Automatic_Hinting'>Automatic Hinting</a> has no effect if <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kNo_Hinting'>kNo Hinting</a> or |
| 2215 | <a href='#SkPaint_kSlight_Hinting'>kSlight Hinting</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2216 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2217 | Only affects platforms that use FreeType as the <a href='undocumented#Font_Manager'>Font Manager</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2218 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2219 | Sets <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a> if <a href='#SkPaint_setAutohinted_useAutohinter'>useAutohinter</a> is true. |
| 2220 | Clears <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a> if <a href='#SkPaint_setAutohinted_useAutohinter'>useAutohinter</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2221 | |
| 2222 | ### Parameters |
| 2223 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2224 | <table> <tr> <td><a name='SkPaint_setAutohinted_useAutohinter'><code><strong>useAutohinter</strong></code></a></td> |
| 2225 | <td>setting for <a href='#SkPaint_kAutoHinting_Flag'>kAutoHinting Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2226 | </tr> |
| 2227 | </table> |
| 2228 | |
| 2229 | ### Example |
| 2230 | |
| 2231 | <div><fiddle-embed name="4e185306d7de9390fe8445eed0139309"></fiddle-embed></div> |
| 2232 | |
| 2233 | ### See Also |
| 2234 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2235 | <a href='#SkPaint_isAutohinted'>isAutohinted</a> <a href='#SkPaint_Hinting'>Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2236 | |
| 2237 | --- |
| 2238 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2239 | ## <a name='Vertical_Text'>Vertical Text</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2240 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2241 | <a href='undocumented#Text'>Text</a> may be drawn by positioning each glyph, or by positioning the first glyph and |
| 2242 | using <a href='undocumented#Advance'>Font Advance</a> to position subsequent <a href='undocumented#Glyph'>Glyphs</a>. By default, each successive glyph |
| 2243 | is positioned to the right of the preceding glyph. <a href='#Vertical_Text'>Vertical Text</a> sets successive |
| 2244 | <a href='undocumented#Glyph'>Glyphs</a> to position below the preceding glyph. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2245 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2246 | Skia can translate text character codes as a series of <a href='undocumented#Glyph'>Glyphs</a>, but does not implement |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2247 | font substitution, |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 2248 | textual substitution, line layout, or contextual spacing like <a href='undocumented#Kerning'>Kerning</a> pairs. Use |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2249 | a text shaping engine like <a href='https://harfbuzz.org/'>HarfBuzz</a></a> to translate text runs |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2250 | into glyph series. |
| 2251 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2252 | <a href='#Vertical_Text'>Vertical Text</a> is clear if text is drawn left to right or set if drawn from top to bottom. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2253 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2254 | <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> if clear draws text left to right. |
| 2255 | <a href='#SkPaint_Flags'>Flags</a> <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> if set draws text top to bottom. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2256 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2257 | <a href='#Vertical_Text'>Vertical Text</a> is clear by default. |
| 2258 | <a href='#Vertical_Text'>Vertical Text</a> can be set by default by setting <a href='undocumented#SkPaintDefaults_Flags'>SkPaintDefaults Flags</a> to |
| 2259 | <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> at compile time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2260 | |
| 2261 | ### Example |
| 2262 | |
| 2263 | <div><fiddle-embed name="8df5800819311b71373d9abb669b49b8"></fiddle-embed></div> |
| 2264 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2265 | <a name='SkPaint_isVerticalText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2266 | ## isVerticalText |
| 2267 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2268 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2269 | bool <a href='#SkPaint_isVerticalText'>isVerticalText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2270 | </pre> |
| 2271 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2272 | If true, <a href='undocumented#Glyph'>Glyphs</a> are drawn top to bottom instead of left to right. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2273 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2274 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2275 | |
| 2276 | ### Return Value |
| 2277 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2278 | <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2279 | |
| 2280 | ### Example |
| 2281 | |
| 2282 | <div><fiddle-embed name="4a269b16e644d473870ffa873396f139"> |
| 2283 | |
| 2284 | #### Example Output |
| 2285 | |
| 2286 | ~~~~ |
| 2287 | paint.isVerticalText() == !!(paint.getFlags() & SkPaint::kVerticalText_Flag) |
| 2288 | paint.isVerticalText() == !!(paint.getFlags() & SkPaint::kVerticalText_Flag) |
| 2289 | ~~~~ |
| 2290 | |
| 2291 | </fiddle-embed></div> |
| 2292 | |
| 2293 | --- |
| 2294 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2295 | <a name='SkPaint_setVerticalText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2296 | ## setVerticalText |
| 2297 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2298 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2299 | void <a href='#SkPaint_setVerticalText'>setVerticalText</a>(bool verticalText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2300 | </pre> |
| 2301 | |
| 2302 | If true, text advance positions the next glyph below the previous glyph instead of to the |
| 2303 | right of previous glyph. |
| 2304 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2305 | Sets <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> if vertical is true. |
| 2306 | Clears <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> if vertical is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2307 | |
| 2308 | ### Parameters |
| 2309 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2310 | <table> <tr> <td><a name='SkPaint_setVerticalText_verticalText'><code><strong>verticalText</strong></code></a></td> |
| 2311 | <td>setting for <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2312 | </tr> |
| 2313 | </table> |
| 2314 | |
| 2315 | ### Example |
| 2316 | |
| 2317 | <div><fiddle-embed name="6fbd7e9e1a346cb8d7f537786009c736"> |
| 2318 | |
| 2319 | #### Example Output |
| 2320 | |
| 2321 | ~~~~ |
| 2322 | paint1 == paint2 |
| 2323 | ~~~~ |
| 2324 | |
| 2325 | </fiddle-embed></div> |
| 2326 | |
| 2327 | --- |
| 2328 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2329 | ## <a name='Fake_Bold'>Fake Bold</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2330 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2331 | <a href='#Fake_Bold'>Fake Bold</a> approximates the bold font style accompanying a normal font when a bold font face |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2332 | is not available. Skia does not provide font substitution; it is up to the client to find the |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2333 | bold font face using the platform <a href='undocumented#Font_Manager'>Font Manager</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2334 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2335 | Use <a href='#Text_Skew_X'>Text Skew X</a> to approximate an italic font style when the italic font face |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2336 | is not available. |
| 2337 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2338 | A FreeType based port may define SK_USE_FREETYPE_EMBOLDEN at compile time to direct |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2339 | the font engine to create the bold <a href='undocumented#Glyph'>Glyphs</a>. Otherwise, the extra bold is computed |
| 2340 | by increasing the stroke width and setting the <a href='#SkPaint_Style'>Style</a> to <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a> as needed. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2341 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2342 | <a href='#Fake_Bold'>Fake Bold</a> is disabled by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2343 | |
| 2344 | ### Example |
| 2345 | |
| 2346 | <div><fiddle-embed name="e811f4829a2daaaeaad3795504a7e02a"></fiddle-embed></div> |
| 2347 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2348 | <a name='SkPaint_isFakeBoldText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2349 | ## isFakeBoldText |
| 2350 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2351 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2352 | bool <a href='#SkPaint_isFakeBoldText'>isFakeBoldText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2353 | </pre> |
| 2354 | |
| 2355 | If true, approximate bold by increasing the stroke width when creating glyph bitmaps |
| 2356 | from outlines. |
| 2357 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2358 | Equivalent to <a href='#SkPaint_getFlags'>getFlags</a> masked with <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2359 | |
| 2360 | ### Return Value |
| 2361 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2362 | <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2363 | |
| 2364 | ### Example |
| 2365 | |
| 2366 | <div><fiddle-embed name="f54d1f85b16073b80b9eef2e1a1d151d"> |
| 2367 | |
| 2368 | #### Example Output |
| 2369 | |
| 2370 | ~~~~ |
| 2371 | paint.isFakeBoldText() == !!(paint.getFlags() & SkPaint::kFakeBoldText_Flag) |
| 2372 | paint.isFakeBoldText() == !!(paint.getFlags() & SkPaint::kFakeBoldText_Flag) |
| 2373 | ~~~~ |
| 2374 | |
| 2375 | </fiddle-embed></div> |
| 2376 | |
| 2377 | --- |
| 2378 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2379 | <a name='SkPaint_setFakeBoldText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2380 | ## setFakeBoldText |
| 2381 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2382 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2383 | void <a href='#SkPaint_setFakeBoldText'>setFakeBoldText</a>(bool fakeBoldText) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2384 | </pre> |
| 2385 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 2386 | Use increased stroke width when creating glyph bitmaps to approximate a bold typeface. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2387 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2388 | Sets <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a> if <a href='#SkPaint_setFakeBoldText_fakeBoldText'>fakeBoldText</a> is true. |
| 2389 | Clears <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a> if <a href='#SkPaint_setFakeBoldText_fakeBoldText'>fakeBoldText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2390 | |
| 2391 | ### Parameters |
| 2392 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2393 | <table> <tr> <td><a name='SkPaint_setFakeBoldText_fakeBoldText'><code><strong>fakeBoldText</strong></code></a></td> |
| 2394 | <td>setting for <a href='#SkPaint_kFakeBoldText_Flag'>kFakeBoldText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2395 | </tr> |
| 2396 | </table> |
| 2397 | |
| 2398 | ### Example |
| 2399 | |
| 2400 | <div><fiddle-embed name="594d47858eb11028cb626515a520910a"> |
| 2401 | |
| 2402 | #### Example Output |
| 2403 | |
| 2404 | ~~~~ |
| 2405 | paint1 == paint2 |
| 2406 | ~~~~ |
| 2407 | |
| 2408 | </fiddle-embed></div> |
| 2409 | |
| 2410 | --- |
| 2411 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2412 | ## <a name='Full_Hinting_Spacing'>Full Hinting Spacing</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2413 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2414 | if <a href='#SkPaint_Hinting'>Hinting</a> is set to <a href='#SkPaint_kFull_Hinting'>kFull Hinting</a>, <a href='#Full_Hinting_Spacing'>Full Hinting Spacing</a> adjusts the character |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 2415 | spacing by the difference of the hinted and <a href='undocumented#Unhinted'>Unhinted</a> <a href='undocumented#Left_Side_Bearing'>Left Side Bearing</a> and |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2416 | <a href='undocumented#Right_Side_Bearing'>Right Side Bearing</a>. <a href='#Full_Hinting_Spacing'>Full Hinting Spacing</a> only applies to platforms that use |
| 2417 | FreeType as their <a href='undocumented#Engine'>Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2418 | |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 2419 | <a href='#Full_Hinting_Spacing'>Full Hinting Spacing</a> is not related to text <a href='undocumented#Kerning'>Kerning</a>, where the space between |
| 2420 | a specific pair of characters is adjusted using data in the font <a href='undocumented#Kerning'>Kerning</a> tables. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2421 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2422 | <a name='SkPaint_isDevKernText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2423 | ## isDevKernText |
| 2424 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2425 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2426 | bool <a href='#SkPaint_isDevKernText'>isDevKernText</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2427 | </pre> |
| 2428 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2429 | Deprecated. |
| 2430 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2431 | --- |
| 2432 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2433 | <a name='SkPaint_setDevKernText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2434 | ## setDevKernText |
| 2435 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2436 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2437 | void <a href='#SkPaint_setDevKernText'>setDevKernText</a>(bool) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2438 | </pre> |
| 2439 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2440 | Deprecated. |
| 2441 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2442 | --- |
| 2443 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2444 | ## <a name='Filter_Quality_Methods'>Filter Quality Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2445 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2446 | <a href='undocumented#Filter_Quality'>Filter Quality</a> trades speed for image filtering when the image is scaled. |
| 2447 | A lower <a href='undocumented#Filter_Quality'>Filter Quality</a> draws faster, but has less fidelity. |
| 2448 | A higher <a href='undocumented#Filter_Quality'>Filter Quality</a> draws slower, but looks better. |
| 2449 | If the image is drawn without scaling, the <a href='undocumented#Filter_Quality'>Filter Quality</a> choice will not result |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 2450 | in a noticeable difference. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2451 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2452 | <a href='undocumented#Filter_Quality'>Filter Quality</a> is used in <a href='#Paint'>Paint</a> passed as a parameter to |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2453 | |
| 2454 | <table> <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2455 | <td><a href='SkCanvas_Reference#SkCanvas_drawBitmap'>SkCanvas::drawBitmap</a></td> |
| 2456 | </tr> <tr> |
| 2457 | <td><a href='SkCanvas_Reference#SkCanvas_drawBitmapRect'>SkCanvas::drawBitmapRect</a></td> |
| 2458 | </tr> <tr> |
| 2459 | <td><a href='SkCanvas_Reference#SkCanvas_drawImage'>SkCanvas::drawImage</a></td> |
| 2460 | </tr> <tr> |
| 2461 | <td><a href='SkCanvas_Reference#SkCanvas_drawImageRect'>SkCanvas::drawImageRect</a></td> |
| 2462 | </tr> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2463 | </table> |
| 2464 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2465 | and when <a href='#Paint'>Paint</a> has a <a href='undocumented#Shader'>Shader</a> specialization that uses <a href='SkImage_Reference#Image'>Image</a> or <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2466 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2467 | <a href='undocumented#Filter_Quality'>Filter Quality</a> is <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a> by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2468 | |
| 2469 | ### Example |
| 2470 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 2471 | <div><fiddle-embed name="69369cff2f5b145a6f616092513266a0"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2472 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2473 | <a name='SkPaint_getFilterQuality'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2474 | ## getFilterQuality |
| 2475 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2476 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2477 | <a href='undocumented#SkFilterQuality'>SkFilterQuality</a> <a href='#SkPaint_getFilterQuality'>getFilterQuality</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2478 | </pre> |
| 2479 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2480 | Returns <a href='undocumented#Filter_Quality'>Filter Quality</a>, the image filtering level. A lower setting |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2481 | draws faster; a higher setting looks better when the image is scaled. |
| 2482 | |
| 2483 | ### Return Value |
| 2484 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2485 | one of: <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a>, <a href='undocumented#kLow_SkFilterQuality'>kLow_SkFilterQuality</a>, |
| 2486 | <a href='undocumented#kMedium_SkFilterQuality'>kMedium_SkFilterQuality</a>, <a href='undocumented#kHigh_SkFilterQuality'>kHigh_SkFilterQuality</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2487 | |
| 2488 | ### Example |
| 2489 | |
| 2490 | <div><fiddle-embed name="d4ca1f23809b6835c4ba46ea98a86900"> |
| 2491 | |
| 2492 | #### Example Output |
| 2493 | |
| 2494 | ~~~~ |
| 2495 | kNone_SkFilterQuality == paint.getFilterQuality() |
| 2496 | ~~~~ |
| 2497 | |
| 2498 | </fiddle-embed></div> |
| 2499 | |
| 2500 | --- |
| 2501 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2502 | <a name='SkPaint_setFilterQuality'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2503 | ## setFilterQuality |
| 2504 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2505 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2506 | void <a href='#SkPaint_setFilterQuality'>setFilterQuality</a>(<a href='undocumented#SkFilterQuality'>SkFilterQuality</a> quality) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2507 | </pre> |
| 2508 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2509 | Sets <a href='undocumented#Filter_Quality'>Filter Quality</a>, the image filtering level. A lower setting |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2510 | draws faster; a higher setting looks better when the image is scaled. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2511 | Does not check to see if <a href='#SkPaint_setFilterQuality_quality'>quality</a> is valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2512 | |
| 2513 | ### Parameters |
| 2514 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2515 | <table> <tr> <td><a name='SkPaint_setFilterQuality_quality'><code><strong>quality</strong></code></a></td> |
| 2516 | <td>one of: <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a>, <a href='undocumented#kLow_SkFilterQuality'>kLow_SkFilterQuality</a>, |
| 2517 | <a href='undocumented#kMedium_SkFilterQuality'>kMedium_SkFilterQuality</a>, <a href='undocumented#kHigh_SkFilterQuality'>kHigh_SkFilterQuality</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2518 | </tr> |
| 2519 | </table> |
| 2520 | |
| 2521 | ### Example |
| 2522 | |
| 2523 | <div><fiddle-embed name="e4288fabf24ee60b645e8bb6ea0afadf"> |
| 2524 | |
| 2525 | #### Example Output |
| 2526 | |
| 2527 | ~~~~ |
| 2528 | kHigh_SkFilterQuality == paint.getFilterQuality() |
| 2529 | ~~~~ |
| 2530 | |
| 2531 | </fiddle-embed></div> |
| 2532 | |
| 2533 | ### See Also |
| 2534 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2535 | <a href='undocumented#SkFilterQuality'>SkFilterQuality</a> <a href='undocumented#Image_Scaling'>Image Scaling</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2536 | |
| 2537 | --- |
| 2538 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2539 | ## <a name='Color_Methods'>Color Methods</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2540 | |
Cary Clark | ab2621d | 2018-01-30 10:08:57 -0500 | [diff] [blame] | 2541 | | name | description | |
| 2542 | | --- | --- | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2543 | | <a href='#SkPaint_getColor'>getColor</a> | returns <a href='SkColor_Reference#Alpha'>Color Alpha</a> and RGB, one drawing color | |
| 2544 | | <a href='#SkPaint_setColor'>setColor</a> | sets <a href='SkColor_Reference#Alpha'>Color Alpha</a> and RGB, one drawing color | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2545 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2546 | <a href='SkColor_Reference#Color'>Color</a> specifies the red, blue, green, and <a href='SkColor_Reference#Alpha'>Color Alpha</a> |
Cary Clark | ab2621d | 2018-01-30 10:08:57 -0500 | [diff] [blame] | 2547 | values used to draw a filled or stroked shape in a 32-bit value. Each component |
| 2548 | occupies 8-bits, ranging from zero: no contribution; to 255: full intensity. |
| 2549 | All values in any combination are valid. |
| 2550 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2551 | <a href='SkColor_Reference#Color'>Color</a> is not <a href='undocumented#Premultiply'>Premultiplied</a>; <a href='SkColor_Reference#Alpha'>Color Alpha</a> sets the transparency independent of |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2552 | RGB: red, blue, and green. |
Cary Clark | ab2621d | 2018-01-30 10:08:57 -0500 | [diff] [blame] | 2553 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2554 | The bit positions of <a href='SkColor_Reference#Alpha'>Color Alpha</a> and RGB are independent of the bit |
Cary Clark | ab2621d | 2018-01-30 10:08:57 -0500 | [diff] [blame] | 2555 | positions on the output device, which may have more or fewer bits, and may have |
| 2556 | a different arrangement. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2557 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2558 | | bit positions | <a href='SkColor_Reference#Alpha'>Color Alpha</a> | red | blue | green | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2559 | | --- | --- | --- | --- | --- | |
| 2560 | | | 31 - 24 | 23 - 16 | 15 - 8 | 7 - 0 | |
| 2561 | |
| 2562 | ### Example |
| 2563 | |
| 2564 | <div><fiddle-embed name="214b559d75c65a7bef6ef4be1f860053"></fiddle-embed></div> |
| 2565 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2566 | <a name='SkPaint_getColor'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2567 | ## getColor |
| 2568 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2569 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2570 | <a href='SkColor_Reference#SkColor'>SkColor</a> <a href='#SkPaint_getColor'>getColor</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2571 | </pre> |
| 2572 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2573 | Retrieves <a href='SkColor_Reference#Alpha'>Alpha</a> and RGB, <a href='undocumented#Unpremultiply'>Unpremultiplied</a>, packed into 32 bits. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2574 | Use helpers <a href='SkColor_Reference#SkColorGetA'>SkColorGetA</a>, <a href='SkColor_Reference#SkColorGetR'>SkColorGetR</a>, <a href='SkColor_Reference#SkColorGetG'>SkColorGetG</a>, and <a href='SkColor_Reference#SkColorGetB'>SkColorGetB</a> to extract |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2575 | a color component. |
| 2576 | |
| 2577 | ### Return Value |
| 2578 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2579 | <a href='undocumented#Unpremultiply'>Unpremultiplied</a> ARGB |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2580 | |
| 2581 | ### Example |
| 2582 | |
| 2583 | <div><fiddle-embed name="72d41f890203109a41f589a7403acae9"> |
| 2584 | |
| 2585 | #### Example Output |
| 2586 | |
| 2587 | ~~~~ |
| 2588 | Yellow is 100% red, 100% green, and 0% blue. |
| 2589 | ~~~~ |
| 2590 | |
| 2591 | </fiddle-embed></div> |
| 2592 | |
| 2593 | ### See Also |
| 2594 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2595 | <a href='SkColor_Reference#SkColor'>SkColor</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2596 | |
| 2597 | --- |
| 2598 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2599 | <a name='SkPaint_setColor'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2600 | ## setColor |
| 2601 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2602 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2603 | void <a href='#SkPaint_setColor'>setColor</a>(<a href='SkColor_Reference#SkColor'>SkColor</a> color) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2604 | </pre> |
| 2605 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2606 | Sets <a href='SkColor_Reference#Alpha'>Alpha</a> and RGB used when stroking and filling. The <a href='#SkPaint_setColor_color'>color</a> is a 32-bit value, |
| 2607 | <a href='undocumented#Unpremultiply'>Unpremultiplied</a>, packing 8-bit components for <a href='SkColor_Reference#Alpha'>Alpha</a>, red, blue, and green. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2608 | |
| 2609 | ### Parameters |
| 2610 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2611 | <table> <tr> <td><a name='SkPaint_setColor_color'><code><strong>color</strong></code></a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2612 | <td><a href='undocumented#Unpremultiply'>Unpremultiplied</a> ARGB</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2613 | </tr> |
| 2614 | </table> |
| 2615 | |
| 2616 | ### Example |
| 2617 | |
| 2618 | <div><fiddle-embed name="6e70f18300bd676a3c056ceb6b62f8df"> |
| 2619 | |
| 2620 | #### Example Output |
| 2621 | |
| 2622 | ~~~~ |
| 2623 | green1 == green2 |
| 2624 | ~~~~ |
| 2625 | |
| 2626 | </fiddle-embed></div> |
| 2627 | |
| 2628 | ### See Also |
| 2629 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2630 | <a href='SkColor_Reference#SkColor'>SkColor</a> <a href='#SkPaint_setARGB'>setARGB</a> <a href='SkColor_Reference#SkColorSetARGB'>SkColorSetARGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2631 | |
| 2632 | --- |
| 2633 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2634 | ## <a name='Alpha_Methods'>Alpha Methods</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2635 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2636 | <a href='SkColor_Reference#Alpha'>Color Alpha</a> sets the transparency independent of RGB: red, blue, and green. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2637 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2638 | <a name='SkPaint_getAlpha'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2639 | ## getAlpha |
| 2640 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2641 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2642 | uint8_t <a href='#SkPaint_getAlpha'>getAlpha</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2643 | </pre> |
| 2644 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2645 | Retrieves <a href='SkColor_Reference#Alpha'>Alpha</a> from the <a href='SkColor_Reference#Color'>Color</a> used when stroking and filling. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2646 | |
| 2647 | ### Return Value |
| 2648 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2649 | <a href='SkColor_Reference#Alpha'>Alpha</a> ranging from zero, fully transparent, to 255, fully opaque |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2650 | |
| 2651 | ### Example |
| 2652 | |
| 2653 | <div><fiddle-embed name="9a85bb62fe3d877b18fb7f952c4fa7f7"> |
| 2654 | |
| 2655 | #### Example Output |
| 2656 | |
| 2657 | ~~~~ |
| 2658 | 255 == paint.getAlpha() |
| 2659 | ~~~~ |
| 2660 | |
| 2661 | </fiddle-embed></div> |
| 2662 | |
| 2663 | --- |
| 2664 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2665 | <a name='SkPaint_setAlpha'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2666 | ## setAlpha |
| 2667 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2668 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2669 | void <a href='#SkPaint_setAlpha'>setAlpha</a>(<a href='undocumented#U8CPU'>U8CPU</a> a) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2670 | </pre> |
| 2671 | |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2672 | Replaces <a href='SkColor_Reference#Alpha'>Alpha</a>, leaving RGB |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2673 | unchanged. An out of range value triggers an assert in the debug |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2674 | build. <a href='#SkPaint_setAlpha_a'>a</a> is <a href='#SkPaint_setAlpha_a'>a</a> value from zero to 255. |
| 2675 | <a href='#SkPaint_setAlpha_a'>a</a> set to zero makes <a href='SkColor_Reference#Color'>Color</a> fully transparent; <a href='#SkPaint_setAlpha_a'>a</a> set to 255 makes <a href='SkColor_Reference#Color'>Color</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2676 | fully opaque. |
| 2677 | |
| 2678 | ### Parameters |
| 2679 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2680 | <table> <tr> <td><a name='SkPaint_setAlpha_a'><code><strong>a</strong></code></a></td> |
| 2681 | <td><a href='SkColor_Reference#Alpha'>Alpha</a> component of <a href='SkColor_Reference#Color'>Color</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2682 | </tr> |
| 2683 | </table> |
| 2684 | |
| 2685 | ### Example |
| 2686 | |
| 2687 | <div><fiddle-embed name="6ddc0360512dfb9947e75c17e6a8103d"> |
| 2688 | |
| 2689 | #### Example Output |
| 2690 | |
| 2691 | ~~~~ |
| 2692 | 0x44112233 == paint.getColor() |
| 2693 | ~~~~ |
| 2694 | |
| 2695 | </fiddle-embed></div> |
| 2696 | |
| 2697 | --- |
| 2698 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2699 | <a name='SkPaint_setARGB'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2700 | ## setARGB |
| 2701 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2702 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2703 | void <a href='#SkPaint_setARGB'>setARGB</a>(<a href='undocumented#U8CPU'>U8CPU</a> a, <a href='undocumented#U8CPU'>U8CPU</a> r, <a href='undocumented#U8CPU'>U8CPU</a> g, <a href='undocumented#U8CPU'>U8CPU</a> b) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2704 | </pre> |
| 2705 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2706 | Sets <a href='SkColor_Reference#Color'>Color</a> used when drawing solid fills. The color components range from 0 to 255. |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2707 | The color is <a href='undocumented#Unpremultiply'>Unpremultiplied</a>; <a href='SkColor_Reference#Alpha'>Alpha</a> sets the transparency independent of RGB. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2708 | |
| 2709 | ### Parameters |
| 2710 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2711 | <table> <tr> <td><a name='SkPaint_setARGB_a'><code><strong>a</strong></code></a></td> |
| 2712 | <td>amount of <a href='SkColor_Reference#Alpha'>Color Alpha</a>, from fully transparent (0) to fully opaque (255)</td> |
| 2713 | </tr> |
| 2714 | <tr> <td><a name='SkPaint_setARGB_r'><code><strong>r</strong></code></a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2715 | <td>amount of red, from no red (0) to full red (255)</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2716 | </tr> |
| 2717 | <tr> <td><a name='SkPaint_setARGB_g'><code><strong>g</strong></code></a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2718 | <td>amount of green, from no green (0) to full green (255)</td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2719 | </tr> |
| 2720 | <tr> <td><a name='SkPaint_setARGB_b'><code><strong>b</strong></code></a></td> |
Cary Clark | ffb3d68 | 2018-05-17 12:17:28 -0400 | [diff] [blame] | 2721 | <td>amount of blue, from no blue (0) to full blue (255)</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2722 | </tr> |
| 2723 | </table> |
| 2724 | |
| 2725 | ### Example |
| 2726 | |
| 2727 | <div><fiddle-embed name="cb62e4755789ed32f7120dc55984959d"> |
| 2728 | |
| 2729 | #### Example Output |
| 2730 | |
| 2731 | ~~~~ |
| 2732 | transRed1 == transRed2 |
| 2733 | ~~~~ |
| 2734 | |
| 2735 | </fiddle-embed></div> |
| 2736 | |
| 2737 | ### See Also |
| 2738 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2739 | <a href='#SkPaint_setColor'>setColor</a> <a href='SkColor_Reference#SkColorSetARGB'>SkColorSetARGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2740 | |
| 2741 | --- |
| 2742 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2743 | ## <a name='Style'>Style</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2744 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2745 | <a href='#SkPaint_Style'>Style</a> specifies if the geometry is filled, stroked, or both filled and stroked. |
| 2746 | Some shapes ignore <a href='#SkPaint_Style'>Style</a> and are always drawn filled or stroked. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2747 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2748 | Set <a href='#SkPaint_Style'>Style</a> to <a href='#SkPaint_kFill_Style'>kFill Style</a> to fill the shape. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2749 | The fill covers the area inside the geometry for most shapes. |
| 2750 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2751 | Set <a href='#SkPaint_Style'>Style</a> to <a href='#SkPaint_kStroke_Style'>kStroke Style</a> to stroke the shape. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2752 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2753 | ## <a name='Style_Fill'>Style Fill</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2754 | |
| 2755 | ### See Also |
| 2756 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2757 | <a href='SkPath_Reference#Fill_Type'>Path Fill Type</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2758 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2759 | ## <a name='Style_Stroke'>Style Stroke</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2760 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2761 | The stroke covers the area described by following the shape edge with a pen or brush of |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2762 | <a href='#Stroke_Width'>Stroke Width</a>. The area covered where the shape starts and stops is described by <a href='#Stroke_Cap'>Stroke Cap</a>. |
| 2763 | The area covered where the shape turns a corner is described by <a href='#Stroke_Join'>Stroke Join</a>. |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2764 | The stroke is centered on the shape; it extends equally on either side of the shape edge. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2765 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2766 | As <a href='#Stroke_Width'>Stroke Width</a> gets smaller, the drawn path frame is thinner. <a href='#Stroke_Width'>Stroke Width</a> less than one |
| 2767 | may have gaps, and if <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> is set, <a href='SkColor_Reference#Alpha'>Color Alpha</a> will increase to visually decrease coverage. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2768 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2769 | ## <a name='Style_Hairline'>Style Hairline</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2770 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2771 | <a href='#Stroke_Width'>Stroke Width</a> of zero has a special meaning and switches drawing to use <a href='#Style_Hairline'>Hairline</a>. |
| 2772 | <a href='#Style_Hairline'>Hairline</a> draws the thinnest continuous frame. If <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> is clear, adjacent pixels |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2773 | flow horizontally, vertically,or diagonally. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2774 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2775 | <a href='SkPath_Reference#Path'>Path</a> drawing with <a href='#Style_Hairline'>Hairline</a> may hit the same pixel more than once. For instance, <a href='SkPath_Reference#Path'>Path</a> containing |
| 2776 | two lines in one <a href='SkPath_Reference#Contour'>Path Contour</a> will draw the corner point once, but may both lines may draw the adjacent |
| 2777 | pixel. If <a href='#SkPaint_kAntiAlias_Flag'>kAntiAlias Flag</a> is set, transparency is applied twice, resulting in a darker pixel. Some |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2778 | GPU-backed implementations apply transparency at a later drawing stage, avoiding double hit pixels |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2779 | while stroking. |
| 2780 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2781 | ## <a name='SkPaint_Style'>Enum SkPaint::Style</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2782 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2783 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2784 | enum <a href='#SkPaint_Style'>Style</a> { |
| 2785 | <a href='#SkPaint_kFill_Style'>kFill Style</a>, |
| 2786 | <a href='#SkPaint_kStroke_Style'>kStroke Style</a>, |
| 2787 | <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a>, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 2788 | }; |
Cary Clark | d98f78c | 2018-04-26 08:32:37 -0400 | [diff] [blame] | 2789 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2790 | static constexpr int <a href='#SkPaint_kStyleCount'>kStyleCount</a> = <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a> + 1; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2791 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2792 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2793 | Set <a href='#SkPaint_Style'>Style</a> to fill, stroke, or both fill and stroke geometry. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2794 | The stroke and fill |
| 2795 | share all paint attributes; for instance, they are drawn with the same color. |
| 2796 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2797 | Use <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a> to avoid hitting the same pixels twice with a stroke draw and |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2798 | a fill draw. |
| 2799 | |
| 2800 | ### Constants |
| 2801 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2802 | <table style='border-collapse: collapse; width: 62.5em'> |
| 2803 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 2804 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 2805 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 2806 | <tr style='background-color: #f0f0f0; '> |
| 2807 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kFill_Style'><code>SkPaint::kFill_Style</code></a></td> |
| 2808 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 2809 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 2810 | Applies to <a href='SkRect_Reference#Rect'>Rect</a>, <a href='undocumented#Region'>Region</a>, <a href='undocumented#Round_Rect'>Round Rect</a>, <a href='undocumented#Circle'>Circles</a>, <a href='undocumented#Oval'>Ovals</a>, <a href='SkPath_Reference#Path'>Path</a>, and <a href='undocumented#Text'>Text</a>. |
| 2811 | <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>, <a href='SkImage_Reference#Image'>Image</a>, <a href='undocumented#Patch'>Patches</a>, <a href='undocumented#Region'>Region</a>, <a href='undocumented#Sprite'>Sprites</a>, and <a href='undocumented#Vertices'>Vertices</a> are painted as if |
| 2812 | <a href='#SkPaint_kFill_Style'>kFill Style</a> is set, and ignore the set <a href='#SkPaint_Style'>Style</a>. |
| 2813 | The <a href='SkPath_Reference#Fill_Type'>Path Fill Type</a> specifies additional rules to fill the area outside the path edge, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2814 | and to create an unfilled hole inside the shape. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2815 | <a href='#SkPaint_Style'>Style</a> is set to <a href='#SkPaint_kFill_Style'>kFill Style</a> by default. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2816 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2817 | </tr> |
| 2818 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2819 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kStroke_Style'><code>SkPaint::kStroke_Style</code></a></td> |
| 2820 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 2821 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 2822 | Applies to <a href='SkRect_Reference#Rect'>Rect</a>, <a href='undocumented#Region'>Region</a>, <a href='undocumented#Round_Rect'>Round Rect</a>, <a href='undocumented#Arc'>Arcs</a>, <a href='undocumented#Circle'>Circles</a>, <a href='undocumented#Oval'>Ovals</a>, <a href='SkPath_Reference#Path'>Path</a>, and <a href='undocumented#Text'>Text</a>. |
| 2823 | <a href='undocumented#Arc'>Arcs</a>, <a href='undocumented#Line'>Lines</a>, and points, are always drawn as if <a href='#SkPaint_kStroke_Style'>kStroke Style</a> is set, |
| 2824 | and ignore the set <a href='#SkPaint_Style'>Style</a>. |
| 2825 | The stroke construction is unaffected by the <a href='SkPath_Reference#Fill_Type'>Path Fill Type</a>. |
| 2826 | </td> |
| 2827 | </tr> |
| 2828 | <tr style='background-color: #f0f0f0; '> |
| 2829 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kStrokeAndFill_Style'><code>SkPaint::kStrokeAndFill_Style</code></a></td> |
| 2830 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 2831 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 2832 | Applies to <a href='SkRect_Reference#Rect'>Rect</a>, <a href='undocumented#Region'>Region</a>, <a href='undocumented#Round_Rect'>Round Rect</a>, <a href='undocumented#Circle'>Circles</a>, <a href='undocumented#Oval'>Ovals</a>, <a href='SkPath_Reference#Path'>Path</a>, and <a href='undocumented#Text'>Text</a>. |
| 2833 | <a href='SkPath_Reference#Path'>Path</a> is treated as if it is set to <a href='SkPath_Reference#SkPath_kWinding_FillType'>SkPath::kWinding FillType</a>, |
| 2834 | and the set <a href='SkPath_Reference#Fill_Type'>Path Fill Type</a> is ignored. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2835 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2836 | </tr> |
| 2837 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2838 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kStyleCount'><code>SkPaint::kStyleCount</code></a></td> |
| 2839 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 2840 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 2841 | May be used to verify that <a href='#SkPaint_Style'>Style</a> is a legal value. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2842 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2843 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2844 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2845 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2846 | <a name='SkPaint_getStyle'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2847 | ## getStyle |
| 2848 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2849 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2850 | <a href='#SkPaint_Style'>Style</a> <a href='#SkPaint_getStyle'>getStyle</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2851 | </pre> |
| 2852 | |
| 2853 | Whether the geometry is filled, stroked, or filled and stroked. |
| 2854 | |
| 2855 | ### Return Value |
| 2856 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2857 | one of:<a href='#SkPaint_kFill_Style'>kFill Style</a>, <a href='#SkPaint_kStroke_Style'>kStroke Style</a>, <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2858 | |
| 2859 | ### Example |
| 2860 | |
| 2861 | <div><fiddle-embed name="1c5e18c3c0102d2dac86a78ba8c8ce01"> |
| 2862 | |
| 2863 | #### Example Output |
| 2864 | |
| 2865 | ~~~~ |
| 2866 | SkPaint::kFill_Style == paint.getStyle() |
| 2867 | ~~~~ |
| 2868 | |
| 2869 | </fiddle-embed></div> |
| 2870 | |
| 2871 | ### See Also |
| 2872 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2873 | <a href='#SkPaint_Style'>Style</a> <a href='#SkPaint_setStyle'>setStyle</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2874 | |
| 2875 | --- |
| 2876 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2877 | <a name='SkPaint_setStyle'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2878 | ## setStyle |
| 2879 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2880 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2881 | void <a href='#SkPaint_setStyle'>setStyle</a>(<a href='#SkPaint_Style'>Style</a> style) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2882 | </pre> |
| 2883 | |
| 2884 | Sets whether the geometry is filled, stroked, or filled and stroked. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2885 | Has no effect if <a href='#SkPaint_setStyle_style'>style</a> is not a legal <a href='#SkPaint_Style'>Style</a> value. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2886 | |
| 2887 | ### Parameters |
| 2888 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2889 | <table> <tr> <td><a name='SkPaint_setStyle_style'><code><strong>style</strong></code></a></td> |
| 2890 | <td>one of: <a href='#SkPaint_kFill_Style'>kFill Style</a>, <a href='#SkPaint_kStroke_Style'>kStroke Style</a>, <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2891 | </tr> |
| 2892 | </table> |
| 2893 | |
| 2894 | ### Example |
| 2895 | |
| 2896 | <div><fiddle-embed name="c7bb6248e4735b8d1a32d02fba40d344"></fiddle-embed></div> |
| 2897 | |
| 2898 | ### See Also |
| 2899 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2900 | <a href='#SkPaint_Style'>Style</a> <a href='#SkPaint_getStyle'>getStyle</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2901 | |
| 2902 | --- |
| 2903 | |
| 2904 | ### See Also |
| 2905 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2906 | <a href='SkPath_Reference#Fill_Type'>Path Fill Type</a> <a href='undocumented#Path_Effect'>Path Effect</a> <a href='#Style_Fill'>Style Fill</a> <a href='#Style_Stroke'>Style Stroke</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2907 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2908 | ## <a name='Stroke_Width'>Stroke Width</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2909 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2910 | <a href='#Stroke_Width'>Stroke Width</a> sets the width for stroking. The width is the thickness |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2911 | of the stroke perpendicular to the path direction when the paint style is |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2912 | set to <a href='#SkPaint_kStroke_Style'>kStroke Style</a> or <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2913 | |
| 2914 | When width is greater than zero, the stroke encompasses as many pixels partially |
| 2915 | or fully as needed. When the width equals zero, the paint enables hairlines; |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2916 | the stroke is always one pixel wide. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2917 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2918 | The stroke dimensions are scaled by the canvas matrix, but <a href='#Style_Hairline'>Hairline</a> stroke |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2919 | remains one pixel wide regardless of scaling. |
| 2920 | |
| 2921 | The default width for the paint is zero. |
| 2922 | |
| 2923 | ### Example |
| 2924 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 2925 | <div><fiddle-embed name="5112c7209a19e035c61cef33a624a652" gpu="true"><div>The pixels hit to represent thin lines vary with the angle of the |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 2926 | line and the platform implementation. |
| 2927 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2928 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2929 | <a name='SkPaint_getStrokeWidth'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2930 | ## getStrokeWidth |
| 2931 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2932 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2933 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getStrokeWidth'>getStrokeWidth</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2934 | </pre> |
| 2935 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2936 | Returns the thickness of the pen used by <a href='#Paint'>Paint</a> to |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2937 | outline the shape. |
| 2938 | |
| 2939 | ### Return Value |
| 2940 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2941 | zero for <a href='#Style_Hairline'>Hairline</a>, greater than zero for pen thickness |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2942 | |
| 2943 | ### Example |
| 2944 | |
| 2945 | <div><fiddle-embed name="99aa73f64df8bbf06e656cd891a81b9e"> |
| 2946 | |
| 2947 | #### Example Output |
| 2948 | |
| 2949 | ~~~~ |
| 2950 | 0 == paint.getStrokeWidth() |
| 2951 | ~~~~ |
| 2952 | |
| 2953 | </fiddle-embed></div> |
| 2954 | |
| 2955 | --- |
| 2956 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2957 | <a name='SkPaint_setStrokeWidth'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2958 | ## setStrokeWidth |
| 2959 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2960 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 2961 | void <a href='#SkPaint_setStrokeWidth'>setStrokeWidth</a>(<a href='undocumented#SkScalar'>SkScalar</a> width) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2962 | </pre> |
| 2963 | |
| 2964 | Sets the thickness of the pen used by the paint to |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2965 | outline the shape. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2966 | Has no effect if <a href='#SkPaint_setStrokeWidth_width'>width</a> is less than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2967 | |
| 2968 | ### Parameters |
| 2969 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2970 | <table> <tr> <td><a name='SkPaint_setStrokeWidth_width'><code><strong>width</strong></code></a></td> |
| 2971 | <td>zero thickness for <a href='#Style_Hairline'>Hairline</a>; greater than zero for pen thickness</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2972 | </tr> |
| 2973 | </table> |
| 2974 | |
| 2975 | ### Example |
| 2976 | |
| 2977 | <div><fiddle-embed name="0c4446c0870b5c7b5a2efe77ff92afb8"> |
| 2978 | |
| 2979 | #### Example Output |
| 2980 | |
| 2981 | ~~~~ |
| 2982 | 5 == paint.getStrokeWidth() |
| 2983 | ~~~~ |
| 2984 | |
| 2985 | </fiddle-embed></div> |
| 2986 | |
| 2987 | --- |
| 2988 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2989 | ## <a name='Miter_Limit'>Miter Limit</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 2990 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2991 | <a href='#Miter_Limit'>Miter Limit</a> specifies the maximum miter length, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2992 | relative to the stroke width. |
| 2993 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2994 | <a href='#Miter_Limit'>Miter Limit</a> is used when the <a href='#Stroke_Join'>Stroke Join</a> |
| 2995 | is set to <a href='#SkPaint_kMiter_Join'>kMiter Join</a>, and the <a href='#SkPaint_Style'>Style</a> is either <a href='#SkPaint_kStroke_Style'>kStroke Style</a> |
| 2996 | or <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2997 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 2998 | If the miter at a corner exceeds this limit, <a href='#SkPaint_kMiter_Join'>kMiter Join</a> |
| 2999 | is replaced with <a href='#SkPaint_kBevel_Join'>kBevel Join</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3000 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3001 | <a href='#Miter_Limit'>Miter Limit</a> can be computed from the corner angle: |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3002 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3003 | miter limit = 1 / sin ( angle / 2 )<a href='#Miter_Limit'>Miter Limit</a> default value is 4. |
| 3004 | The default may be changed at compile time by setting <a href='undocumented#SkPaintDefaults_MiterLimit'>SkPaintDefaults MiterLimit</a> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3005 | in "SkUserConfig.h" or as a define supplied by the build environment. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3006 | |
| 3007 | Here are some miter limits and the angles that triggers them. |
| 3008 | |
| 3009 | | miter limit | angle in degrees | |
| 3010 | | --- | --- | |
| 3011 | | 10 | 11.48 | |
| 3012 | | 9 | 12.76 | |
| 3013 | | 8 | 14.36 | |
| 3014 | | 7 | 16.43 | |
| 3015 | | 6 | 19.19 | |
| 3016 | | 5 | 23.07 | |
| 3017 | | 4 | 28.96 | |
| 3018 | | 3 | 38.94 | |
| 3019 | | 2 | 60 | |
| 3020 | | 1 | 180 | |
| 3021 | |
| 3022 | ### Example |
| 3023 | |
| 3024 | <div><fiddle-embed name="5de2de0f00354e59074a9bb1a42d5a63"><div>This example draws a stroked corner and the miter length beneath. |
| 3025 | When the miter limit is decreased slightly, the miter join is replaced |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3026 | by a bevel join. |
| 3027 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3028 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3029 | <a name='SkPaint_getStrokeMiter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3030 | ## getStrokeMiter |
| 3031 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3032 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3033 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getStrokeMiter'>getStrokeMiter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3034 | </pre> |
| 3035 | |
| 3036 | The limit at which a sharp corner is drawn beveled. |
| 3037 | |
| 3038 | ### Return Value |
| 3039 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3040 | zero and greater <a href='#Miter_Limit'>Miter Limit</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3041 | |
| 3042 | ### Example |
| 3043 | |
| 3044 | <div><fiddle-embed name="50da74a43b725f07a914df588c867d36"> |
| 3045 | |
| 3046 | #### Example Output |
| 3047 | |
| 3048 | ~~~~ |
| 3049 | default miter limit == 4 |
| 3050 | ~~~~ |
| 3051 | |
| 3052 | </fiddle-embed></div> |
| 3053 | |
| 3054 | ### See Also |
| 3055 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3056 | <a href='#Miter_Limit'>Miter Limit</a> <a href='#SkPaint_setStrokeMiter'>setStrokeMiter</a> <a href='#SkPaint_Join'>Join</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3057 | |
| 3058 | --- |
| 3059 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3060 | <a name='SkPaint_setStrokeMiter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3061 | ## setStrokeMiter |
| 3062 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3063 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3064 | void <a href='#SkPaint_setStrokeMiter'>setStrokeMiter</a>(<a href='undocumented#SkScalar'>SkScalar</a> miter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3065 | </pre> |
| 3066 | |
| 3067 | The limit at which a sharp corner is drawn beveled. |
| 3068 | Valid values are zero and greater. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3069 | Has no effect if <a href='#SkPaint_setStrokeMiter_miter'>miter</a> is less than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3070 | |
| 3071 | ### Parameters |
| 3072 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3073 | <table> <tr> <td><a name='SkPaint_setStrokeMiter_miter'><code><strong>miter</strong></code></a></td> |
| 3074 | <td>zero and greater <a href='#Miter_Limit'>Miter Limit</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3075 | </tr> |
| 3076 | </table> |
| 3077 | |
| 3078 | ### Example |
| 3079 | |
| 3080 | <div><fiddle-embed name="700b284dbc97785c6a9c9636088713ad"> |
| 3081 | |
| 3082 | #### Example Output |
| 3083 | |
| 3084 | ~~~~ |
| 3085 | default miter limit == 8 |
| 3086 | ~~~~ |
| 3087 | |
| 3088 | </fiddle-embed></div> |
| 3089 | |
| 3090 | ### See Also |
| 3091 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3092 | <a href='#Miter_Limit'>Miter Limit</a> <a href='#SkPaint_getStrokeMiter'>getStrokeMiter</a> <a href='#SkPaint_Join'>Join</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3093 | |
| 3094 | --- |
| 3095 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3096 | ## <a name='Stroke_Cap'>Stroke Cap</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3097 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3098 | ## <a name='SkPaint_Cap'>Enum SkPaint::Cap</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3099 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3100 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3101 | enum <a href='#SkPaint_Cap'>Cap</a> { |
| 3102 | <a href='#SkPaint_kButt_Cap'>kButt Cap</a>, |
| 3103 | <a href='#SkPaint_kRound_Cap'>kRound Cap</a>, |
| 3104 | <a href='#SkPaint_kSquare_Cap'>kSquare Cap</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3105 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3106 | <a href='#SkPaint_kLast_Cap'>kLast Cap</a> = <a href='#SkPaint_kSquare_Cap'>kSquare Cap</a>, |
| 3107 | <a href='#SkPaint_kDefault_Cap'>kDefault Cap</a> = <a href='#SkPaint_kButt_Cap'>kButt Cap</a>, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 3108 | }; |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3109 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3110 | static constexpr int <a href='#SkPaint_kCapCount'>kCapCount</a> = <a href='#SkPaint_kLast_Cap'>kLast Cap</a> + 1; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3111 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3112 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3113 | <a href='#Stroke_Cap'>Stroke Cap</a> draws at the beginning and end of an open <a href='SkPath_Reference#Contour'>Path Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3114 | |
| 3115 | ### Constants |
| 3116 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3117 | <table style='border-collapse: collapse; width: 62.5em'> |
| 3118 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 3119 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 3120 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 3121 | <tr style='background-color: #f0f0f0; '> |
| 3122 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kButt_Cap'><code>SkPaint::kButt_Cap</code></a></td> |
| 3123 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 3124 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3125 | Does not extend the stroke past the beginning or the end. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3126 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3127 | </tr> |
| 3128 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3129 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kRound_Cap'><code>SkPaint::kRound_Cap</code></a></td> |
| 3130 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 3131 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3132 | Adds a circle with a diameter equal to <a href='#Stroke_Width'>Stroke Width</a> at the beginning |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3133 | and end. |
| 3134 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3135 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3136 | <tr style='background-color: #f0f0f0; '> |
| 3137 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kSquare_Cap'><code>SkPaint::kSquare_Cap</code></a></td> |
| 3138 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 3139 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3140 | Adds a square with sides equal to <a href='#Stroke_Width'>Stroke Width</a> at the beginning |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3141 | and end. The square sides are parallel to the initial and final direction |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3142 | of the stroke. |
| 3143 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3144 | </tr> |
| 3145 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3146 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kLast_Cap'><code>SkPaint::kLast_Cap</code></a></td> |
| 3147 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 3148 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3149 | Equivalent to the largest value for <a href='#Stroke_Cap'>Stroke Cap</a>. |
| 3150 | </td> |
| 3151 | </tr> |
| 3152 | <tr style='background-color: #f0f0f0; '> |
| 3153 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kDefault_Cap'><code>SkPaint::kDefault_Cap</code></a></td> |
| 3154 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 3155 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3156 | <a href='#Stroke_Cap'>Stroke Cap</a> is set to <a href='#SkPaint_kButt_Cap'>kButt Cap</a> by default. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3157 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3158 | </tr> |
| 3159 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3160 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kCapCount'><code>SkPaint::kCapCount</code></a></td> |
| 3161 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 3162 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3163 | May be used to verify that <a href='#Stroke_Cap'>Stroke Cap</a> is a legal value. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3164 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3165 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3166 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3167 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3168 | Stroke describes the area covered by a pen of <a href='#Stroke_Width'>Stroke Width</a> as it |
| 3169 | follows the <a href='SkPath_Reference#Contour'>Path Contour</a>, moving parallel to the contour direction. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3170 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3171 | If the <a href='SkPath_Reference#Contour'>Path Contour</a> is not terminated by <a href='SkPath_Reference#SkPath_kClose_Verb'>SkPath::kClose Verb</a>, the contour has a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3172 | visible beginning and end. |
| 3173 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3174 | <a href='SkPath_Reference#Contour'>Path Contour</a> may start and end at the same point; defining <a href='SkPath_Reference#Contour_Zero_Length'>Zero Length Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3175 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3176 | <a href='#SkPaint_kButt_Cap'>kButt Cap</a> and <a href='SkPath_Reference#Contour_Zero_Length'>Zero Length Contour</a> is not drawn. |
| 3177 | <a href='#SkPaint_kRound_Cap'>kRound Cap</a> and <a href='SkPath_Reference#Contour_Zero_Length'>Zero Length Contour</a> draws a circle of diameter <a href='#Stroke_Width'>Stroke Width</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3178 | at the contour point. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3179 | <a href='#SkPaint_kSquare_Cap'>kSquare Cap</a> and <a href='SkPath_Reference#Contour_Zero_Length'>Zero Length Contour</a> draws an upright square with a side of |
| 3180 | <a href='#Stroke_Width'>Stroke Width</a> at the contour point. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3181 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3182 | <a href='#Stroke_Cap'>Stroke Cap</a> is <a href='#SkPaint_kButt_Cap'>kButt Cap</a> by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3183 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3184 | ### Example |
| 3185 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 3186 | <div><fiddle-embed name="2bffb6384cc20077e632e7d01da045ca"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3187 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3188 | <a name='SkPaint_getStrokeCap'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3189 | ## getStrokeCap |
| 3190 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3191 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3192 | <a href='#SkPaint_Cap'>Cap</a> <a href='#SkPaint_getStrokeCap'>getStrokeCap</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3193 | </pre> |
| 3194 | |
| 3195 | The geometry drawn at the beginning and end of strokes. |
| 3196 | |
| 3197 | ### Return Value |
| 3198 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3199 | one of: <a href='#SkPaint_kButt_Cap'>kButt Cap</a>, <a href='#SkPaint_kRound_Cap'>kRound Cap</a>, <a href='#SkPaint_kSquare_Cap'>kSquare Cap</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3200 | |
| 3201 | ### Example |
| 3202 | |
| 3203 | <div><fiddle-embed name="aabf9baee8e026fae36fca30e955512b"> |
| 3204 | |
| 3205 | #### Example Output |
| 3206 | |
| 3207 | ~~~~ |
| 3208 | kButt_Cap == default stroke cap |
| 3209 | ~~~~ |
| 3210 | |
| 3211 | </fiddle-embed></div> |
| 3212 | |
| 3213 | ### See Also |
| 3214 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3215 | <a href='#Stroke_Cap'>Stroke Cap</a> <a href='#SkPaint_setStrokeCap'>setStrokeCap</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3216 | |
| 3217 | --- |
| 3218 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3219 | <a name='SkPaint_setStrokeCap'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3220 | ## setStrokeCap |
| 3221 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3222 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3223 | void <a href='#SkPaint_setStrokeCap'>setStrokeCap</a>(<a href='#SkPaint_Cap'>Cap</a> cap) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3224 | </pre> |
| 3225 | |
| 3226 | The geometry drawn at the beginning and end of strokes. |
| 3227 | |
| 3228 | ### Parameters |
| 3229 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3230 | <table> <tr> <td><a name='SkPaint_setStrokeCap_cap'><code><strong>cap</strong></code></a></td> |
| 3231 | <td>one of: <a href='#SkPaint_kButt_Cap'>kButt Cap</a>, <a href='#SkPaint_kRound_Cap'>kRound Cap</a>, <a href='#SkPaint_kSquare_Cap'>kSquare Cap</a>; |
| 3232 | has no effect if <a href='#SkPaint_setStrokeCap_cap'>cap</a> is not valid</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3233 | </tr> |
| 3234 | </table> |
| 3235 | |
| 3236 | ### Example |
| 3237 | |
| 3238 | <div><fiddle-embed name="de83fbd848a4625345b4b87a6e55d98a"> |
| 3239 | |
| 3240 | #### Example Output |
| 3241 | |
| 3242 | ~~~~ |
| 3243 | kRound_Cap == paint.getStrokeCap() |
| 3244 | ~~~~ |
| 3245 | |
| 3246 | </fiddle-embed></div> |
| 3247 | |
| 3248 | ### See Also |
| 3249 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3250 | <a href='#Stroke_Cap'>Stroke Cap</a> <a href='#SkPaint_getStrokeCap'>getStrokeCap</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3251 | |
| 3252 | --- |
| 3253 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3254 | ## <a name='Stroke_Join'>Stroke Join</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3255 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3256 | <a href='#Stroke_Join'>Stroke Join</a> draws at the sharp corners of an open or closed <a href='SkPath_Reference#Contour'>Path Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3257 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3258 | Stroke describes the area covered by a pen of <a href='#Stroke_Width'>Stroke Width</a> as it |
| 3259 | follows the <a href='SkPath_Reference#Contour'>Path Contour</a>, moving parallel to the contour direction. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3260 | |
| 3261 | If the contour direction changes abruptly, because the tangent direction leading |
| 3262 | to the end of a curve within the contour does not match the tangent direction of |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3263 | the following curve, the pair of curves meet at <a href='#Stroke_Join'>Stroke Join</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3264 | |
| 3265 | ### Example |
| 3266 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 3267 | <div><fiddle-embed name="917c44b504d3f9308571fd3835d90a0d"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3268 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3269 | ## <a name='SkPaint_Join'>Enum SkPaint::Join</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3270 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3271 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3272 | enum <a href='#SkPaint_Join'>Join</a> { |
| 3273 | <a href='#SkPaint_kMiter_Join'>kMiter Join</a>, |
| 3274 | <a href='#SkPaint_kRound_Join'>kRound Join</a>, |
| 3275 | <a href='#SkPaint_kBevel_Join'>kBevel Join</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3276 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3277 | <a href='#SkPaint_kLast_Join'>kLast Join</a> = <a href='#SkPaint_kBevel_Join'>kBevel Join</a>, |
| 3278 | <a href='#SkPaint_kDefault_Join'>kDefault Join</a> = <a href='#SkPaint_kMiter_Join'>kMiter Join</a>, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 3279 | }; |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3280 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3281 | static constexpr int <a href='#SkPaint_kJoinCount'>kJoinCount</a> = <a href='#SkPaint_kLast_Join'>kLast Join</a> + 1; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3282 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3283 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3284 | <a href='#SkPaint_Join'>Join</a> specifies how corners are drawn when a shape is stroked. <a href='#SkPaint_Join'>Join</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3285 | affects the four corners of a stroked rectangle, and the connected segments in a |
| 3286 | stroked path. |
| 3287 | |
| 3288 | Choose miter join to draw sharp corners. Choose round join to draw a circle with a |
| 3289 | radius equal to the stroke width on top of the corner. Choose bevel join to minimally |
| 3290 | connect the thick strokes. |
| 3291 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3292 | The fill path constructed to describe the stroked path respects the join setting but may |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3293 | not contain the actual join. For instance, a fill path constructed with round joins does |
| 3294 | not necessarily include circles at each connected segment. |
| 3295 | |
| 3296 | ### Constants |
| 3297 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3298 | <table style='border-collapse: collapse; width: 62.5em'> |
| 3299 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 3300 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 3301 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 3302 | <tr style='background-color: #f0f0f0; '> |
| 3303 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kMiter_Join'><code>SkPaint::kMiter_Join</code></a></td> |
| 3304 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 3305 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3306 | Extends the outside corner to the extent allowed by <a href='#Miter_Limit'>Miter Limit</a>. |
| 3307 | If the extension exceeds <a href='#Miter_Limit'>Miter Limit</a>, <a href='#SkPaint_kBevel_Join'>kBevel Join</a> is used instead. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3308 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3309 | </tr> |
| 3310 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3311 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kRound_Join'><code>SkPaint::kRound_Join</code></a></td> |
| 3312 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 3313 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3314 | Adds a circle with a diameter of <a href='#Stroke_Width'>Stroke Width</a> at the sharp corner. |
| 3315 | </td> |
| 3316 | </tr> |
| 3317 | <tr style='background-color: #f0f0f0; '> |
| 3318 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kBevel_Join'><code>SkPaint::kBevel_Join</code></a></td> |
| 3319 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 3320 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3321 | Connects the outside edges of the sharp corner. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3322 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3323 | </tr> |
| 3324 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3325 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kLast_Join'><code>SkPaint::kLast_Join</code></a></td> |
| 3326 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 3327 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3328 | equivalent to the largest value for Stroke_Join</td> |
| 3329 | </tr> |
| 3330 | <tr style='background-color: #f0f0f0; '> |
| 3331 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kDefault_Join'><code>SkPaint::kDefault_Join</code></a></td> |
| 3332 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 3333 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3334 | <a href='#Stroke_Join'>Stroke Join</a> is set to <a href='#SkPaint_kMiter_Join'>kMiter Join</a> by default. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3335 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3336 | </tr> |
| 3337 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3338 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kJoinCount'><code>SkPaint::kJoinCount</code></a></td> |
| 3339 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 3340 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 3341 | May be used to verify that <a href='#Stroke_Join'>Stroke Join</a> is a legal value. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3342 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3343 | </tr> |
| 3344 | </table> |
| 3345 | |
| 3346 | ### Example |
| 3347 | |
| 3348 | <div><fiddle-embed name="3b1aebacc21c1836a52876b9b0b3905e"></fiddle-embed></div> |
| 3349 | |
| 3350 | ### See Also |
| 3351 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3352 | <a href='#SkPaint_setStrokeJoin'>setStrokeJoin</a> <a href='#SkPaint_getStrokeJoin'>getStrokeJoin</a> <a href='#SkPaint_setStrokeMiter'>setStrokeMiter</a> <a href='#SkPaint_getStrokeMiter'>getStrokeMiter</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3353 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3354 | <a name='SkPaint_getStrokeJoin'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3355 | ## getStrokeJoin |
| 3356 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3357 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3358 | <a href='#SkPaint_Join'>Join</a> <a href='#SkPaint_getStrokeJoin'>getStrokeJoin</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3359 | </pre> |
| 3360 | |
Cary Clark | 0c5f546 | 2017-12-15 11:21:51 -0500 | [diff] [blame] | 3361 | The geometry drawn at the corners of strokes. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3362 | |
| 3363 | ### Return Value |
| 3364 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3365 | one of: <a href='#SkPaint_kMiter_Join'>kMiter Join</a>, <a href='#SkPaint_kRound_Join'>kRound Join</a>, <a href='#SkPaint_kBevel_Join'>kBevel Join</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3366 | |
| 3367 | ### Example |
| 3368 | |
| 3369 | <div><fiddle-embed name="31bf751d0a8ddf176b871810820d8199"> |
| 3370 | |
| 3371 | #### Example Output |
| 3372 | |
| 3373 | ~~~~ |
| 3374 | kMiter_Join == default stroke join |
| 3375 | ~~~~ |
| 3376 | |
| 3377 | </fiddle-embed></div> |
| 3378 | |
| 3379 | ### See Also |
| 3380 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3381 | <a href='#Stroke_Join'>Stroke Join</a> <a href='#SkPaint_setStrokeJoin'>setStrokeJoin</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3382 | |
| 3383 | --- |
| 3384 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3385 | <a name='SkPaint_setStrokeJoin'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3386 | ## setStrokeJoin |
| 3387 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3388 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3389 | void <a href='#SkPaint_setStrokeJoin'>setStrokeJoin</a>(<a href='#SkPaint_Join'>Join</a> join) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3390 | </pre> |
| 3391 | |
Cary Clark | 0c5f546 | 2017-12-15 11:21:51 -0500 | [diff] [blame] | 3392 | The geometry drawn at the corners of strokes. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3393 | |
| 3394 | ### Parameters |
| 3395 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3396 | <table> <tr> <td><a name='SkPaint_setStrokeJoin_join'><code><strong>join</strong></code></a></td> |
| 3397 | <td>one of: <a href='#SkPaint_kMiter_Join'>kMiter Join</a>, <a href='#SkPaint_kRound_Join'>kRound Join</a>, <a href='#SkPaint_kBevel_Join'>kBevel Join</a>; |
Cary Clark | bad5ad7 | 2017-08-03 17:14:08 -0400 | [diff] [blame] | 3398 | otherwise, has no effect</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3399 | </tr> |
| 3400 | </table> |
| 3401 | |
| 3402 | ### Example |
| 3403 | |
| 3404 | <div><fiddle-embed name="48d963ad4286eddf680f9c511eb6da91"> |
| 3405 | |
| 3406 | #### Example Output |
| 3407 | |
| 3408 | ~~~~ |
| 3409 | kMiter_Join == paint.getStrokeJoin() |
| 3410 | ~~~~ |
| 3411 | |
| 3412 | </fiddle-embed></div> |
| 3413 | |
| 3414 | ### See Also |
| 3415 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3416 | <a href='#Stroke_Join'>Stroke Join</a> <a href='#SkPaint_getStrokeJoin'>getStrokeJoin</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3417 | |
| 3418 | --- |
| 3419 | |
| 3420 | ### See Also |
| 3421 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3422 | <a href='#Miter_Limit'>Miter Limit</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3423 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3424 | ## <a name='Fill_Path'>Fill Path</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3425 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3426 | <a href='#Fill_Path'>Fill Path</a> creates a <a href='SkPath_Reference#Path'>Path</a> by applying the <a href='undocumented#Path_Effect'>Path Effect</a>, followed by the <a href='#Style_Stroke'>Style Stroke</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3427 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3428 | If <a href='#Paint'>Paint</a> contains <a href='undocumented#Path_Effect'>Path Effect</a>, <a href='undocumented#Path_Effect'>Path Effect</a> operates on the source <a href='SkPath_Reference#Path'>Path</a>; the result |
| 3429 | replaces the destination <a href='SkPath_Reference#Path'>Path</a>. Otherwise, the source <a href='SkPath_Reference#Path'>Path</a> is replaces the |
| 3430 | destination <a href='SkPath_Reference#Path'>Path</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3431 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3432 | Fill <a href='SkPath_Reference#Path'>Path</a> can request the <a href='undocumented#Path_Effect'>Path Effect</a> to restrict to a culling rectangle, but |
| 3433 | the <a href='undocumented#Path_Effect'>Path Effect</a> is not required to do so. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3434 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3435 | If <a href='#SkPaint_Style'>Style</a> is <a href='#SkPaint_kStroke_Style'>kStroke Style</a> or <a href='#SkPaint_kStrokeAndFill_Style'>kStrokeAndFill Style</a>, |
| 3436 | and <a href='#Stroke_Width'>Stroke Width</a> is greater than zero, the <a href='#Stroke_Width'>Stroke Width</a>, <a href='#Stroke_Cap'>Stroke Cap</a>, <a href='#Stroke_Join'>Stroke Join</a>, |
| 3437 | and <a href='#Miter_Limit'>Miter Limit</a> operate on the destination <a href='SkPath_Reference#Path'>Path</a>, replacing it. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3438 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3439 | Fill <a href='SkPath_Reference#Path'>Path</a> can specify the precision used by <a href='#Stroke_Width'>Stroke Width</a> to approximate the stroke geometry. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3440 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3441 | If the <a href='#SkPaint_Style'>Style</a> is <a href='#SkPaint_kStroke_Style'>kStroke Style</a> and the <a href='#Stroke_Width'>Stroke Width</a> is zero, <a href='#SkPaint_getFillPath'>getFillPath</a> |
| 3442 | returns false since <a href='#Style_Hairline'>Hairline</a> has no filled equivalent. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3443 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3444 | <a name='SkPaint_getFillPath'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3445 | ## getFillPath |
| 3446 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3447 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3448 | bool <a href='#SkPaint_getFillPath'>getFillPath</a>(const <a href='SkPath_Reference#SkPath'>SkPath</a>& src, <a href='SkPath_Reference#SkPath'>SkPath</a>* dst, const <a href='SkRect_Reference#SkRect'>SkRect</a>* cullRect, <a href='undocumented#SkScalar'>SkScalar</a> resScale = 1) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3449 | </pre> |
| 3450 | |
| 3451 | The filled equivalent of the stroked path. |
| 3452 | |
| 3453 | ### Parameters |
| 3454 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3455 | <table> <tr> <td><a name='SkPaint_getFillPath_src'><code><strong>src</strong></code></a></td> |
| 3456 | <td><a href='SkPath_Reference#Path'>Path</a> read to create a filled version</td> |
| 3457 | </tr> |
| 3458 | <tr> <td><a name='SkPaint_getFillPath_dst'><code><strong>dst</strong></code></a></td> |
| 3459 | <td>resulting <a href='SkPath_Reference#Path'>Path</a>; may be the same as <a href='#SkPaint_getFillPath_src'>src</a>, but may not be nullptr</td> |
| 3460 | </tr> |
| 3461 | <tr> <td><a name='SkPaint_getFillPath_cullRect'><code><strong>cullRect</strong></code></a></td> |
| 3462 | <td>optional limit passed to <a href='undocumented#Path_Effect'>Path Effect</a></td> |
| 3463 | </tr> |
| 3464 | <tr> <td><a name='SkPaint_getFillPath_resScale'><code><strong>resScale</strong></code></a></td> |
| 3465 | <td>if > 1, increase precision, else if (0 < res < 1) reduce precision |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3466 | to favor speed and size</td> |
| 3467 | </tr> |
| 3468 | </table> |
| 3469 | |
| 3470 | ### Return Value |
| 3471 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3472 | true if the path represents <a href='#Style_Fill'>Style Fill</a>, or false if it represents <a href='#Style_Hairline'>Hairline</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3473 | |
| 3474 | ### Example |
| 3475 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3476 | <div><fiddle-embed name="cedd6233848198e1fca4d1e14816baaf"><div>A very small <a href='SkPath_Reference#Quad'>Quad</a> stroke is turned into a filled path with increasing levels of precision. |
| 3477 | At the lowest precision, the <a href='SkPath_Reference#Quad'>Quad</a> stroke is approximated by a rectangle. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 3478 | At the highest precision, the filled path has high fidelity compared to the original stroke. |
| 3479 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3480 | |
| 3481 | --- |
| 3482 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3483 | <a name='SkPaint_getFillPath_2'></a> |
Cary Clark | 2dc84ad | 2018-01-26 12:56:22 -0500 | [diff] [blame] | 3484 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3485 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3486 | bool <a href='#SkPaint_getFillPath'>getFillPath</a>(const <a href='SkPath_Reference#SkPath'>SkPath</a>& src, <a href='SkPath_Reference#SkPath'>SkPath</a>* dst) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3487 | </pre> |
| 3488 | |
| 3489 | The filled equivalent of the stroked path. |
| 3490 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3491 | Replaces <a href='#SkPaint_getFillPath_2_dst'>dst</a> with the <a href='#SkPaint_getFillPath_2_src'>src</a> path modified by <a href='undocumented#Path_Effect'>Path Effect</a> and <a href='#Style_Stroke'>Style Stroke</a>. |
| 3492 | <a href='undocumented#Path_Effect'>Path Effect</a>, if any, is not culled. <a href='#Stroke_Width'>Stroke Width</a> is created with default precision. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3493 | |
| 3494 | ### Parameters |
| 3495 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3496 | <table> <tr> <td><a name='SkPaint_getFillPath_2_src'><code><strong>src</strong></code></a></td> |
| 3497 | <td><a href='SkPath_Reference#Path'>Path</a> read to create a filled version</td> |
| 3498 | </tr> |
| 3499 | <tr> <td><a name='SkPaint_getFillPath_2_dst'><code><strong>dst</strong></code></a></td> |
| 3500 | <td>resulting <a href='SkPath_Reference#Path'>Path</a> <a href='#SkPaint_getFillPath_2_dst'>dst</a> may be the same as <a href='#SkPaint_getFillPath_2_src'>src</a>, but may not be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3501 | </tr> |
| 3502 | </table> |
| 3503 | |
| 3504 | ### Return Value |
| 3505 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3506 | true if the path represents <a href='#Style_Fill'>Style Fill</a>, or false if it represents <a href='#Style_Hairline'>Hairline</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3507 | |
| 3508 | ### Example |
| 3509 | |
| 3510 | <div><fiddle-embed name="e6d8ca0cc17e0b475bd54dd995825468"></fiddle-embed></div> |
| 3511 | |
| 3512 | --- |
| 3513 | |
| 3514 | ### See Also |
| 3515 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3516 | <a href='#Style_Stroke'>Style Stroke</a> <a href='#Stroke_Width'>Stroke Width</a> <a href='undocumented#Path_Effect'>Path Effect</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3517 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3518 | ## <a name='Shader_Methods'>Shader Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3519 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3520 | <a href='undocumented#Shader'>Shader</a> defines the colors used when drawing a shape. |
| 3521 | <a href='undocumented#Shader'>Shader</a> may be an image, a gradient, or a computed fill. |
| 3522 | If <a href='#Paint'>Paint</a> has no <a href='undocumented#Shader'>Shader</a>, then <a href='SkColor_Reference#Color'>Color</a> fills the shape. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3523 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3524 | <a href='undocumented#Shader'>Shader</a> is modulated by <a href='SkColor_Reference#Alpha'>Color Alpha</a> component of <a href='SkColor_Reference#Color'>Color</a>. |
| 3525 | If <a href='undocumented#Shader'>Shader</a> object defines only <a href='SkColor_Reference#Alpha'>Color Alpha</a>, then <a href='SkColor_Reference#Color'>Color</a> modulated by <a href='SkColor_Reference#Alpha'>Color Alpha</a> describes |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3526 | the fill. |
| 3527 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3528 | The drawn transparency can be modified without altering <a href='undocumented#Shader'>Shader</a>, by changing <a href='SkColor_Reference#Alpha'>Color Alpha</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3529 | |
| 3530 | ### Example |
| 3531 | |
| 3532 | <div><fiddle-embed name="c015dc2010c15e1c00b4f7330232b0f7"></fiddle-embed></div> |
| 3533 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3534 | If <a href='undocumented#Shader'>Shader</a> generates only <a href='SkColor_Reference#Alpha'>Color Alpha</a> then all components of <a href='SkColor_Reference#Color'>Color</a> modulate the output. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3535 | |
| 3536 | ### Example |
| 3537 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 3538 | <div><fiddle-embed name="fe80fd80b98a20823db7fb9a077243c7"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3539 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3540 | <a name='SkPaint_getShader'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3541 | ## getShader |
| 3542 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3543 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3544 | <a href='undocumented#SkShader'>SkShader</a>* <a href='#SkPaint_getShader'>getShader</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3545 | </pre> |
| 3546 | |
| 3547 | Optional colors used when filling a path, such as a gradient. |
| 3548 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3549 | Does not alter <a href='undocumented#Shader'>Shader</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3550 | |
| 3551 | ### Return Value |
| 3552 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3553 | <a href='undocumented#Shader'>Shader</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3554 | |
| 3555 | ### Example |
| 3556 | |
| 3557 | <div><fiddle-embed name="09f15b9fd88882850da2d235eb86292f"> |
| 3558 | |
| 3559 | #### Example Output |
| 3560 | |
| 3561 | ~~~~ |
| 3562 | nullptr == shader |
| 3563 | nullptr != shader |
| 3564 | ~~~~ |
| 3565 | |
| 3566 | </fiddle-embed></div> |
| 3567 | |
| 3568 | --- |
| 3569 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3570 | <a name='SkPaint_refShader'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3571 | ## refShader |
| 3572 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3573 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3574 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkShader'>SkShader</a>> <a href='#SkPaint_refShader'>refShader</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3575 | </pre> |
| 3576 | |
| 3577 | Optional colors used when filling a path, such as a gradient. |
| 3578 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3579 | Increases <a href='undocumented#Shader'>Shader</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3580 | |
| 3581 | ### Return Value |
| 3582 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3583 | <a href='undocumented#Shader'>Shader</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3584 | |
| 3585 | ### Example |
| 3586 | |
| 3587 | <div><fiddle-embed name="53da0295972a418cbc9607bbb17feaa8"> |
| 3588 | |
| 3589 | #### Example Output |
| 3590 | |
| 3591 | ~~~~ |
| 3592 | shader unique: true |
| 3593 | shader unique: false |
| 3594 | ~~~~ |
| 3595 | |
| 3596 | </fiddle-embed></div> |
| 3597 | |
| 3598 | --- |
| 3599 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3600 | <a name='SkPaint_setShader'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3601 | ## setShader |
| 3602 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3603 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3604 | void <a href='#SkPaint_setShader'>setShader</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkShader'>SkShader</a>> shader) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3605 | </pre> |
| 3606 | |
| 3607 | Optional colors used when filling a path, such as a gradient. |
| 3608 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3609 | Sets <a href='undocumented#Shader'>Shader</a> to <a href='#SkPaint_setShader_shader'>shader</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous <a href='undocumented#Shader'>Shader</a>. |
| 3610 | Increments <a href='#SkPaint_setShader_shader'>shader</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3611 | |
| 3612 | ### Parameters |
| 3613 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3614 | <table> <tr> <td><a name='SkPaint_setShader_shader'><code><strong>shader</strong></code></a></td> |
| 3615 | <td>how geometry is filled with color; if nullptr, <a href='SkColor_Reference#Color'>Color</a> is used instead</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3616 | </tr> |
| 3617 | </table> |
| 3618 | |
| 3619 | ### Example |
| 3620 | |
| 3621 | <div><fiddle-embed name="77e64d5bae9b1ba037fd99252bb4aa58"></fiddle-embed></div> |
| 3622 | |
| 3623 | --- |
| 3624 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3625 | ## <a name='Color_Filter_Methods'>Color Filter Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3626 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3627 | <a href='undocumented#Color_Filter'>Color Filter</a> alters the color used when drawing a shape. |
| 3628 | <a href='undocumented#Color_Filter'>Color Filter</a> may apply <a href='undocumented#Blend_Mode'>Blend Mode</a>, transform the color through a matrix, or composite multiple filters. |
| 3629 | If <a href='#Paint'>Paint</a> has no <a href='undocumented#Color_Filter'>Color Filter</a>, the color is unaltered. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3630 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3631 | The drawn transparency can be modified without altering <a href='undocumented#Color_Filter'>Color Filter</a>, by changing <a href='SkColor_Reference#Alpha'>Color Alpha</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3632 | |
| 3633 | ### Example |
| 3634 | |
| 3635 | <div><fiddle-embed name="5abde56ca2f89a18b8e231abd1b57c56"></fiddle-embed></div> |
| 3636 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3637 | <a name='SkPaint_getColorFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3638 | ## getColorFilter |
| 3639 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3640 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3641 | <a href='undocumented#SkColorFilter'>SkColorFilter</a>* <a href='#SkPaint_getColorFilter'>getColorFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3642 | </pre> |
| 3643 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3644 | Returns <a href='undocumented#Color_Filter'>Color Filter</a> if set, or nullptr. |
| 3645 | Does not alter <a href='undocumented#Color_Filter'>Color Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3646 | |
| 3647 | ### Return Value |
| 3648 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3649 | <a href='undocumented#Color_Filter'>Color Filter</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3650 | |
| 3651 | ### Example |
| 3652 | |
| 3653 | <div><fiddle-embed name="093bdc627d6b59002670fd290931f6c9"> |
| 3654 | |
| 3655 | #### Example Output |
| 3656 | |
| 3657 | ~~~~ |
| 3658 | nullptr == color filter |
| 3659 | nullptr != color filter |
| 3660 | ~~~~ |
| 3661 | |
| 3662 | </fiddle-embed></div> |
| 3663 | |
| 3664 | --- |
| 3665 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3666 | <a name='SkPaint_refColorFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3667 | ## refColorFilter |
| 3668 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3669 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3670 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkColorFilter'>SkColorFilter</a>> <a href='#SkPaint_refColorFilter'>refColorFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3671 | </pre> |
| 3672 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3673 | Returns <a href='undocumented#Color_Filter'>Color Filter</a> if set, or nullptr. |
| 3674 | Increases <a href='undocumented#Color_Filter'>Color Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3675 | |
| 3676 | ### Return Value |
| 3677 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3678 | <a href='undocumented#Color_Filter'>Color Filter</a> if set, or nullptr |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3679 | |
| 3680 | ### Example |
| 3681 | |
| 3682 | <div><fiddle-embed name="b588c95fa4c86ddbc4b0546762f08297"> |
| 3683 | |
| 3684 | #### Example Output |
| 3685 | |
| 3686 | ~~~~ |
| 3687 | color filter unique: true |
| 3688 | color filter unique: false |
| 3689 | ~~~~ |
| 3690 | |
| 3691 | </fiddle-embed></div> |
| 3692 | |
| 3693 | --- |
| 3694 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3695 | <a name='SkPaint_setColorFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3696 | ## setColorFilter |
| 3697 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3698 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3699 | void <a href='#SkPaint_setColorFilter'>setColorFilter</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkColorFilter'>SkColorFilter</a>> colorFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3700 | </pre> |
| 3701 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3702 | Sets <a href='undocumented#Color_Filter'>Color Filter</a> to filter, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous |
| 3703 | <a href='undocumented#Color_Filter'>Color Filter</a>. Pass nullptr to clear <a href='undocumented#Color_Filter'>Color Filter</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3704 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3705 | Increments filter <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3706 | |
| 3707 | ### Parameters |
| 3708 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3709 | <table> <tr> <td><a name='SkPaint_setColorFilter_colorFilter'><code><strong>colorFilter</strong></code></a></td> |
| 3710 | <td><a href='undocumented#Color_Filter'>Color Filter</a> to apply to subsequent draw</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3711 | </tr> |
| 3712 | </table> |
| 3713 | |
| 3714 | ### Example |
| 3715 | |
| 3716 | <div><fiddle-embed name="c7b786dc9b3501cd0eaba47494b6fa31"></fiddle-embed></div> |
| 3717 | |
| 3718 | --- |
| 3719 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3720 | ## <a name='Blend_Mode_Methods'>Blend Mode Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3721 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3722 | <a href='undocumented#Blend_Mode'>Blend Mode</a> describes how <a href='SkColor_Reference#Color'>Color</a> combines with the destination color. |
| 3723 | The default setting, <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a>, draws the source color |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3724 | over the destination color. |
| 3725 | |
| 3726 | ### Example |
| 3727 | |
| 3728 | <div><fiddle-embed name="73092d4d06faecea3c204d852a4dd8a8"></fiddle-embed></div> |
| 3729 | |
| 3730 | ### See Also |
| 3731 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3732 | <a href='undocumented#Blend_Mode'>Blend Mode</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3733 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3734 | <a name='SkPaint_getBlendMode'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3735 | ## getBlendMode |
| 3736 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3737 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3738 | <a href='undocumented#SkBlendMode'>SkBlendMode</a> <a href='#SkPaint_getBlendMode'>getBlendMode</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3739 | </pre> |
| 3740 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3741 | Returns <a href='undocumented#Blend_Mode'>Blend Mode</a>. |
| 3742 | By default, returns <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3743 | |
| 3744 | ### Return Value |
| 3745 | |
| 3746 | mode used to combine source color with destination color |
| 3747 | |
| 3748 | ### Example |
| 3749 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 3750 | <div><fiddle-embed name="a1e059c8f6740fa2044cc64152b39dda"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3751 | |
| 3752 | #### Example Output |
| 3753 | |
| 3754 | ~~~~ |
| 3755 | kSrcOver == getBlendMode |
| 3756 | kSrcOver != getBlendMode |
| 3757 | ~~~~ |
| 3758 | |
| 3759 | </fiddle-embed></div> |
| 3760 | |
| 3761 | --- |
| 3762 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3763 | <a name='SkPaint_isSrcOver'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3764 | ## isSrcOver |
| 3765 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3766 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3767 | bool <a href='#SkPaint_isSrcOver'>isSrcOver</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3768 | </pre> |
| 3769 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3770 | Returns true if <a href='undocumented#Blend_Mode'>Blend Mode</a> is <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a>, the default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3771 | |
| 3772 | ### Return Value |
| 3773 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3774 | true if <a href='undocumented#Blend_Mode'>Blend Mode</a> is <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3775 | |
| 3776 | ### Example |
| 3777 | |
| 3778 | <div><fiddle-embed name="257c9473db7a2b3a0fb2b9e2431e59a6"> |
| 3779 | |
| 3780 | #### Example Output |
| 3781 | |
| 3782 | ~~~~ |
| 3783 | isSrcOver == true |
| 3784 | isSrcOver != true |
| 3785 | ~~~~ |
| 3786 | |
| 3787 | </fiddle-embed></div> |
| 3788 | |
| 3789 | --- |
| 3790 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3791 | <a name='SkPaint_setBlendMode'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3792 | ## setBlendMode |
| 3793 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3794 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3795 | void <a href='#SkPaint_setBlendMode'>setBlendMode</a>(<a href='undocumented#SkBlendMode'>SkBlendMode</a> mode) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3796 | </pre> |
| 3797 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3798 | Sets <a href='undocumented#Blend_Mode'>Blend Mode</a> to <a href='#SkPaint_setBlendMode_mode'>mode</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3799 | Does not check for valid input. |
| 3800 | |
| 3801 | ### Parameters |
| 3802 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3803 | <table> <tr> <td><a name='SkPaint_setBlendMode_mode'><code><strong>mode</strong></code></a></td> |
| 3804 | <td><a href='undocumented#SkBlendMode'>SkBlendMode</a> used to combine source color and destination</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3805 | </tr> |
| 3806 | </table> |
| 3807 | |
| 3808 | ### Example |
| 3809 | |
| 3810 | <div><fiddle-embed name="257c9473db7a2b3a0fb2b9e2431e59a6"> |
| 3811 | |
| 3812 | #### Example Output |
| 3813 | |
| 3814 | ~~~~ |
| 3815 | isSrcOver == true |
| 3816 | isSrcOver != true |
| 3817 | ~~~~ |
| 3818 | |
| 3819 | </fiddle-embed></div> |
| 3820 | |
| 3821 | --- |
| 3822 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3823 | ## <a name='Path_Effect_Methods'>Path Effect Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3824 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3825 | <a href='undocumented#Path_Effect'>Path Effect</a> modifies the path geometry before drawing it. |
| 3826 | <a href='undocumented#Path_Effect'>Path Effect</a> may implement dashing, custom fill effects and custom stroke effects. |
| 3827 | If <a href='#Paint'>Paint</a> has no <a href='undocumented#Path_Effect'>Path Effect</a>, the path geometry is unaltered when filled or stroked. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3828 | |
| 3829 | ### Example |
| 3830 | |
| 3831 | <div><fiddle-embed name="8cf5684b187d60f09e11c4a48993ea39"></fiddle-embed></div> |
| 3832 | |
| 3833 | ### See Also |
| 3834 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3835 | <a href='undocumented#Path_Effect'>Path Effect</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3836 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3837 | <a name='SkPaint_getPathEffect'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3838 | ## getPathEffect |
| 3839 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3840 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3841 | <a href='undocumented#SkPathEffect'>SkPathEffect</a>* <a href='#SkPaint_getPathEffect'>getPathEffect</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3842 | </pre> |
| 3843 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3844 | Returns <a href='undocumented#Path_Effect'>Path Effect</a> if set, or nullptr. |
| 3845 | Does not alter <a href='undocumented#Path_Effect'>Path Effect</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3846 | |
| 3847 | ### Return Value |
| 3848 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3849 | <a href='undocumented#Path_Effect'>Path Effect</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3850 | |
| 3851 | ### Example |
| 3852 | |
| 3853 | <div><fiddle-embed name="211a1b14bfa6c4332082c8eab4fbc5fd"> |
| 3854 | |
| 3855 | #### Example Output |
| 3856 | |
| 3857 | ~~~~ |
| 3858 | nullptr == path effect |
| 3859 | nullptr != path effect |
| 3860 | ~~~~ |
| 3861 | |
| 3862 | </fiddle-embed></div> |
| 3863 | |
| 3864 | --- |
| 3865 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3866 | <a name='SkPaint_refPathEffect'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3867 | ## refPathEffect |
| 3868 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3869 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3870 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkPathEffect'>SkPathEffect</a>> <a href='#SkPaint_refPathEffect'>refPathEffect</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3871 | </pre> |
| 3872 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3873 | Returns <a href='undocumented#Path_Effect'>Path Effect</a> if set, or nullptr. |
| 3874 | Increases <a href='undocumented#Path_Effect'>Path Effect</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3875 | |
| 3876 | ### Return Value |
| 3877 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3878 | <a href='undocumented#Path_Effect'>Path Effect</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3879 | |
| 3880 | ### Example |
| 3881 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3882 | <div><fiddle-embed name="f56039b94c702c2704c8c5100e623aca"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3883 | |
| 3884 | #### Example Output |
| 3885 | |
| 3886 | ~~~~ |
| 3887 | path effect unique: true |
| 3888 | path effect unique: false |
| 3889 | ~~~~ |
| 3890 | |
| 3891 | </fiddle-embed></div> |
| 3892 | |
| 3893 | --- |
| 3894 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3895 | <a name='SkPaint_setPathEffect'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3896 | ## setPathEffect |
| 3897 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3898 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3899 | void <a href='#SkPaint_setPathEffect'>setPathEffect</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkPathEffect'>SkPathEffect</a>> pathEffect) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3900 | </pre> |
| 3901 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3902 | Sets <a href='undocumented#Path_Effect'>Path Effect</a> to <a href='#SkPaint_setPathEffect_pathEffect'>pathEffect</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous |
| 3903 | <a href='undocumented#Path_Effect'>Path Effect</a>. Pass nullptr to leave the path geometry unaltered. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3904 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3905 | Increments <a href='#SkPaint_setPathEffect_pathEffect'>pathEffect</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3906 | |
| 3907 | ### Parameters |
| 3908 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3909 | <table> <tr> <td><a name='SkPaint_setPathEffect_pathEffect'><code><strong>pathEffect</strong></code></a></td> |
| 3910 | <td>replace <a href='SkPath_Reference#Path'>Path</a> with a modification when drawn</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3911 | </tr> |
| 3912 | </table> |
| 3913 | |
| 3914 | ### Example |
| 3915 | |
| 3916 | <div><fiddle-embed name="52dd55074ca0b7d520d04e750ca2a0d7"></fiddle-embed></div> |
| 3917 | |
| 3918 | --- |
| 3919 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3920 | ## <a name='Mask_Filter_Methods'>Mask Filter Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 3921 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3922 | <a href='undocumented#Mask_Filter'>Mask Filter</a> uses coverage of the shape drawn to create <a href='undocumented#Mask_Alpha'>Mask Alpha</a>. |
| 3923 | <a href='undocumented#Mask_Filter'>Mask Filter</a> takes a Mask, and returns a Mask. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3924 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3925 | <a href='undocumented#Mask_Filter'>Mask Filter</a> may change the geometry and transparency of the shape, such as |
| 3926 | creating a blur effect. Set <a href='undocumented#Mask_Filter'>Mask Filter</a> to nullptr to prevent <a href='undocumented#Mask_Filter'>Mask Filter</a> from |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3927 | modifying the draw. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3928 | |
| 3929 | ### Example |
| 3930 | |
Cary Clark | 681287e | 2018-03-16 11:34:15 -0400 | [diff] [blame] | 3931 | <div><fiddle-embed name="55d7b9d482ac8e17a6153f555a8adb8d"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3932 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3933 | <a name='SkPaint_getMaskFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3934 | ## getMaskFilter |
| 3935 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3936 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3937 | <a href='undocumented#SkMaskFilter'>SkMaskFilter</a>* <a href='#SkPaint_getMaskFilter'>getMaskFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3938 | </pre> |
| 3939 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3940 | Returns <a href='undocumented#Mask_Filter'>Mask Filter</a> if set, or nullptr. |
| 3941 | Does not alter <a href='undocumented#Mask_Filter'>Mask Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3942 | |
| 3943 | ### Return Value |
| 3944 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3945 | <a href='undocumented#Mask_Filter'>Mask Filter</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3946 | |
| 3947 | ### Example |
| 3948 | |
Cary Clark | 681287e | 2018-03-16 11:34:15 -0400 | [diff] [blame] | 3949 | <div><fiddle-embed name="5ac4b31371726da87bb7390b385e9fee"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3950 | |
| 3951 | #### Example Output |
| 3952 | |
| 3953 | ~~~~ |
| 3954 | nullptr == mask filter |
| 3955 | nullptr != mask filter |
| 3956 | ~~~~ |
| 3957 | |
| 3958 | </fiddle-embed></div> |
| 3959 | |
| 3960 | --- |
| 3961 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3962 | <a name='SkPaint_refMaskFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3963 | ## refMaskFilter |
| 3964 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3965 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3966 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkMaskFilter'>SkMaskFilter</a>> <a href='#SkPaint_refMaskFilter'>refMaskFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3967 | </pre> |
| 3968 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3969 | Returns <a href='undocumented#Mask_Filter'>Mask Filter</a> if set, or nullptr. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3970 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3971 | Increases <a href='undocumented#Mask_Filter'>Mask Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3972 | |
| 3973 | ### Return Value |
| 3974 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3975 | <a href='undocumented#Mask_Filter'>Mask Filter</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3976 | |
| 3977 | ### Example |
| 3978 | |
Cary Clark | 681287e | 2018-03-16 11:34:15 -0400 | [diff] [blame] | 3979 | <div><fiddle-embed name="084b0dc3cebd78718c651d58f257f799"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3980 | |
| 3981 | #### Example Output |
| 3982 | |
| 3983 | ~~~~ |
| 3984 | mask filter unique: true |
| 3985 | mask filter unique: false |
| 3986 | ~~~~ |
| 3987 | |
| 3988 | </fiddle-embed></div> |
| 3989 | |
| 3990 | --- |
| 3991 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3992 | <a name='SkPaint_setMaskFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3993 | ## setMaskFilter |
| 3994 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3995 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 3996 | void <a href='#SkPaint_setMaskFilter'>setMaskFilter</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkMaskFilter'>SkMaskFilter</a>> maskFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3997 | </pre> |
| 3998 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 3999 | Sets <a href='undocumented#Mask_Filter'>Mask Filter</a> to <a href='#SkPaint_setMaskFilter_maskFilter'>maskFilter</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous |
| 4000 | <a href='undocumented#Mask_Filter'>Mask Filter</a>. Pass nullptr to clear <a href='undocumented#Mask_Filter'>Mask Filter</a> and leave <a href='undocumented#Mask_Filter'>Mask Filter</a> effect on |
| 4001 | <a href='undocumented#Mask_Alpha'>Mask Alpha</a> unaltered. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4002 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4003 | Increments <a href='#SkPaint_setMaskFilter_maskFilter'>maskFilter</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4004 | |
| 4005 | ### Parameters |
| 4006 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4007 | <table> <tr> <td><a name='SkPaint_setMaskFilter_maskFilter'><code><strong>maskFilter</strong></code></a></td> |
| 4008 | <td>modifies clipping mask generated from drawn geometry</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4009 | </tr> |
| 4010 | </table> |
| 4011 | |
| 4012 | ### Example |
| 4013 | |
Cary Clark | 681287e | 2018-03-16 11:34:15 -0400 | [diff] [blame] | 4014 | <div><fiddle-embed name="a993831c40f3e134f809134e3b74e4a6"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4015 | |
| 4016 | --- |
| 4017 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4018 | ## <a name='Typeface_Methods'>Typeface Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4019 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4020 | <a href='undocumented#Typeface'>Typeface</a> identifies the font used when drawing and measuring text. |
| 4021 | <a href='undocumented#Typeface'>Typeface</a> may be specified by name, from a file, or from a data stream. |
| 4022 | The default <a href='undocumented#Typeface'>Typeface</a> defers to the platform-specific default font |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4023 | implementation. |
| 4024 | |
| 4025 | ### Example |
| 4026 | |
Ben Wagner | 700ff17 | 2017-11-08 15:37:22 -0500 | [diff] [blame] | 4027 | <div><fiddle-embed name="1a7a5062725139760962582f599f1b97"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4028 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4029 | <a name='SkPaint_getTypeface'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4030 | ## getTypeface |
| 4031 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4032 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4033 | <a href='undocumented#SkTypeface'>SkTypeface</a>* <a href='#SkPaint_getTypeface'>getTypeface</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4034 | </pre> |
| 4035 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4036 | Returns <a href='undocumented#Typeface'>Typeface</a> if set, or nullptr. |
| 4037 | Increments <a href='undocumented#Typeface'>Typeface</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4038 | |
| 4039 | ### Return Value |
| 4040 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4041 | <a href='undocumented#Typeface'>Typeface</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4042 | |
| 4043 | ### Example |
| 4044 | |
Cary Clark | 71961fb | 2018-01-05 14:21:59 -0500 | [diff] [blame] | 4045 | <div><fiddle-embed name="5ce718e5a184baaac80e7098d7dad67b"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4046 | |
| 4047 | #### Example Output |
| 4048 | |
| 4049 | ~~~~ |
| 4050 | nullptr == typeface |
| 4051 | nullptr != typeface |
| 4052 | ~~~~ |
| 4053 | |
| 4054 | </fiddle-embed></div> |
| 4055 | |
| 4056 | --- |
| 4057 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4058 | <a name='SkPaint_refTypeface'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4059 | ## refTypeface |
| 4060 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4061 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4062 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkTypeface'>SkTypeface</a>> <a href='#SkPaint_refTypeface'>refTypeface</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4063 | </pre> |
| 4064 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4065 | Increases <a href='undocumented#Typeface'>Typeface</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4066 | |
| 4067 | ### Return Value |
| 4068 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4069 | <a href='undocumented#Typeface'>Typeface</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4070 | |
| 4071 | ### Example |
| 4072 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 4073 | <div><fiddle-embed name="8b5aa7e555a0dc31be69db7cadf471a1"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4074 | |
| 4075 | #### Example Output |
| 4076 | |
| 4077 | ~~~~ |
| 4078 | typeface1 != typeface2 |
| 4079 | typeface1 == typeface2 |
| 4080 | ~~~~ |
| 4081 | |
| 4082 | </fiddle-embed></div> |
| 4083 | |
| 4084 | --- |
| 4085 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4086 | <a name='SkPaint_setTypeface'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4087 | ## setTypeface |
| 4088 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4089 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4090 | void <a href='#SkPaint_setTypeface'>setTypeface</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkTypeface'>SkTypeface</a>> typeface) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4091 | </pre> |
| 4092 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4093 | Sets <a href='undocumented#Typeface'>Typeface</a> to <a href='#SkPaint_setTypeface_typeface'>typeface</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous <a href='undocumented#Typeface'>Typeface</a>. |
| 4094 | Pass nullptr to clear <a href='undocumented#Typeface'>Typeface</a> and use the default <a href='#SkPaint_setTypeface_typeface'>typeface</a>. Increments |
| 4095 | <a href='#SkPaint_setTypeface_typeface'>typeface</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4096 | |
| 4097 | ### Parameters |
| 4098 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4099 | <table> <tr> <td><a name='SkPaint_setTypeface_typeface'><code><strong>typeface</strong></code></a></td> |
| 4100 | <td>font and style used to draw text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4101 | </tr> |
| 4102 | </table> |
| 4103 | |
| 4104 | ### Example |
| 4105 | |
Cary Clark | 71961fb | 2018-01-05 14:21:59 -0500 | [diff] [blame] | 4106 | <div><fiddle-embed name="0e6fbb7773cd925b274552f4cd1abef2"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4107 | |
| 4108 | --- |
| 4109 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4110 | ## <a name='Image_Filter_Methods'>Image Filter Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4111 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4112 | <a href='undocumented#Image_Filter'>Image Filter</a> operates on the pixel representation of the shape, as modified by <a href='#Paint'>Paint</a> |
| 4113 | with <a href='undocumented#Blend_Mode'>Blend Mode</a> set to <a href='undocumented#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a>. <a href='undocumented#Image_Filter'>Image Filter</a> creates a new bitmap, |
| 4114 | which is drawn to the device using the set <a href='undocumented#Blend_Mode'>Blend Mode</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4115 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4116 | <a href='undocumented#Image_Filter'>Image Filter</a> is higher level than <a href='undocumented#Mask_Filter'>Mask Filter</a>; for instance, an <a href='undocumented#Image_Filter'>Image Filter</a> |
| 4117 | can operate on all channels of <a href='SkColor_Reference#Color'>Color</a>, while <a href='undocumented#Mask_Filter'>Mask Filter</a> generates <a href='SkColor_Reference#Alpha'>Alpha</a> only. |
| 4118 | <a href='undocumented#Image_Filter'>Image Filter</a> operates independently of and can be used in combination with |
| 4119 | <a href='undocumented#Mask_Filter'>Mask Filter</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4120 | |
| 4121 | ### Example |
| 4122 | |
Update Docs | 4410d7f | 2018-03-19 06:05:52 +0000 | [diff] [blame] | 4123 | <div><fiddle-embed name="250e45c5935d54eac6aca775d1fe3475"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4124 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4125 | <a name='SkPaint_getImageFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4126 | ## getImageFilter |
| 4127 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4128 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4129 | <a href='undocumented#SkImageFilter'>SkImageFilter</a>* <a href='#SkPaint_getImageFilter'>getImageFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4130 | </pre> |
| 4131 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4132 | Returns <a href='undocumented#Image_Filter'>Image Filter</a> if set, or nullptr. |
| 4133 | Does not alter <a href='undocumented#Image_Filter'>Image Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4134 | |
| 4135 | ### Return Value |
| 4136 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4137 | <a href='undocumented#Image_Filter'>Image Filter</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4138 | |
| 4139 | ### Example |
| 4140 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4141 | <div><fiddle-embed name="7b8118ff57fcb84e6bc82380d155b62e"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4142 | |
| 4143 | #### Example Output |
| 4144 | |
| 4145 | ~~~~ |
| 4146 | nullptr == image filter |
| 4147 | nullptr != image filter |
| 4148 | ~~~~ |
| 4149 | |
| 4150 | </fiddle-embed></div> |
| 4151 | |
| 4152 | --- |
| 4153 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4154 | <a name='SkPaint_refImageFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4155 | ## refImageFilter |
| 4156 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4157 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4158 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkImageFilter'>SkImageFilter</a>> <a href='#SkPaint_refImageFilter'>refImageFilter</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4159 | </pre> |
| 4160 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4161 | Returns <a href='undocumented#Image_Filter'>Image Filter</a> if set, or nullptr. |
| 4162 | Increases <a href='undocumented#Image_Filter'>Image Filter</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4163 | |
| 4164 | ### Return Value |
| 4165 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4166 | <a href='undocumented#Image_Filter'>Image Filter</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4167 | |
| 4168 | ### Example |
| 4169 | |
| 4170 | <div><fiddle-embed name="13f09088b569251547107d14ae989dc1"> |
| 4171 | |
| 4172 | #### Example Output |
| 4173 | |
| 4174 | ~~~~ |
| 4175 | image filter unique: true |
| 4176 | image filter unique: false |
| 4177 | ~~~~ |
| 4178 | |
| 4179 | </fiddle-embed></div> |
| 4180 | |
| 4181 | --- |
| 4182 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4183 | <a name='SkPaint_setImageFilter'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4184 | ## setImageFilter |
| 4185 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4186 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4187 | void <a href='#SkPaint_setImageFilter'>setImageFilter</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkImageFilter'>SkImageFilter</a>> imageFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4188 | </pre> |
| 4189 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4190 | Sets <a href='undocumented#Image_Filter'>Image Filter</a> to <a href='#SkPaint_setImageFilter_imageFilter'>imageFilter</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous |
| 4191 | <a href='undocumented#Image_Filter'>Image Filter</a>. Pass nullptr to clear <a href='undocumented#Image_Filter'>Image Filter</a>, and remove <a href='undocumented#Image_Filter'>Image Filter</a> effect |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4192 | on drawing. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4193 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4194 | Increments <a href='#SkPaint_setImageFilter_imageFilter'>imageFilter</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4195 | |
| 4196 | ### Parameters |
| 4197 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4198 | <table> <tr> <td><a name='SkPaint_setImageFilter_imageFilter'><code><strong>imageFilter</strong></code></a></td> |
| 4199 | <td>how <a href='SkImage_Reference#Image'>Image</a> is sampled when transformed</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4200 | </tr> |
| 4201 | </table> |
| 4202 | |
| 4203 | ### Example |
| 4204 | |
| 4205 | <div><fiddle-embed name="6679d6e4ec632715ee03e68391bd7f9a"></fiddle-embed></div> |
| 4206 | |
| 4207 | --- |
| 4208 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4209 | ## <a name='Draw_Looper_Methods'>Draw Looper Methods</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4210 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4211 | <a href='undocumented#Draw_Looper'>Draw Looper</a> sets a modifier that communicates state from one <a href='undocumented#Draw_Layer'>Draw Layer</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4212 | to another to construct the draw. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4213 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4214 | <a href='undocumented#Draw_Looper'>Draw Looper</a> draws one or more times, modifying the canvas and paint each time. |
| 4215 | <a href='undocumented#Draw_Looper'>Draw Looper</a> may be used to draw multiple colors or create a colored shadow. |
| 4216 | Set <a href='undocumented#Draw_Looper'>Draw Looper</a> to nullptr to prevent <a href='undocumented#Draw_Looper'>Draw Looper</a> from modifying the draw. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4217 | |
| 4218 | ### Example |
| 4219 | |
| 4220 | <div><fiddle-embed name="84ec12a36e50df5ac565cc7a75ffbe9f"></fiddle-embed></div> |
| 4221 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4222 | <a name='SkPaint_getDrawLooper'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4223 | ## getDrawLooper |
| 4224 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4225 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4226 | <a href='undocumented#SkDrawLooper'>SkDrawLooper</a>* <a href='#SkPaint_getDrawLooper'>getDrawLooper</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4227 | </pre> |
| 4228 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4229 | Returns <a href='undocumented#Draw_Looper'>Draw Looper</a> if set, or nullptr. |
| 4230 | Does not alter <a href='undocumented#Draw_Looper'>Draw Looper</a> <a href='undocumented#Reference_Count'>Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4231 | |
| 4232 | ### Return Value |
| 4233 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4234 | <a href='undocumented#Draw_Looper'>Draw Looper</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4235 | |
| 4236 | ### Example |
| 4237 | |
| 4238 | <div><fiddle-embed name="af4c5acc7a91e7f23c2af48018903ad4"> |
| 4239 | |
| 4240 | #### Example Output |
| 4241 | |
| 4242 | ~~~~ |
| 4243 | nullptr == draw looper |
| 4244 | nullptr != draw looper |
| 4245 | ~~~~ |
| 4246 | |
| 4247 | </fiddle-embed></div> |
| 4248 | |
| 4249 | --- |
| 4250 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4251 | <a name='SkPaint_refDrawLooper'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4252 | ## refDrawLooper |
| 4253 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4254 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4255 | <a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkDrawLooper'>SkDrawLooper</a>> <a href='#SkPaint_refDrawLooper'>refDrawLooper</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4256 | </pre> |
| 4257 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4258 | Returns <a href='undocumented#Draw_Looper'>Draw Looper</a> if set, or nullptr. |
| 4259 | Increases <a href='undocumented#Draw_Looper'>Draw Looper</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4260 | |
| 4261 | ### Return Value |
| 4262 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4263 | <a href='undocumented#Draw_Looper'>Draw Looper</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4264 | |
| 4265 | ### Example |
| 4266 | |
| 4267 | <div><fiddle-embed name="2a3782c33f04ed17a725d0e449c6f7c3"> |
| 4268 | |
| 4269 | #### Example Output |
| 4270 | |
| 4271 | ~~~~ |
| 4272 | draw looper unique: true |
| 4273 | draw looper unique: false |
| 4274 | ~~~~ |
| 4275 | |
| 4276 | </fiddle-embed></div> |
| 4277 | |
| 4278 | --- |
| 4279 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4280 | <a name='SkPaint_getLooper'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4281 | ## getLooper |
| 4282 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4283 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4284 | <a href='undocumented#SkDrawLooper'>SkDrawLooper</a>* <a href='#SkPaint_getLooper'>getLooper</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4285 | </pre> |
| 4286 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4287 | Deprecated. |
| 4288 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4289 | --- |
| 4290 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4291 | <a name='SkPaint_setDrawLooper'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4292 | ## setDrawLooper |
| 4293 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4294 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4295 | void <a href='#SkPaint_setDrawLooper'>setDrawLooper</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkDrawLooper'>SkDrawLooper</a>> drawLooper) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4296 | </pre> |
| 4297 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4298 | Sets <a href='undocumented#Draw_Looper'>Draw Looper</a> to <a href='#SkPaint_setDrawLooper_drawLooper'>drawLooper</a>, decreasing <a href='undocumented#Reference_Count'>Reference Count</a> of the previous |
| 4299 | <a href='#SkPaint_setDrawLooper_drawLooper'>drawLooper</a>. Pass nullptr to clear <a href='undocumented#Draw_Looper'>Draw Looper</a> and leave <a href='undocumented#Draw_Looper'>Draw Looper</a> effect on |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4300 | drawing unaltered. |
| 4301 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4302 | Increments <a href='#SkPaint_setDrawLooper_drawLooper'>drawLooper</a> <a href='undocumented#Reference_Count'>Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4303 | |
| 4304 | ### Parameters |
| 4305 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4306 | <table> <tr> <td><a name='SkPaint_setDrawLooper_drawLooper'><code><strong>drawLooper</strong></code></a></td> |
| 4307 | <td>iterates through drawing one or more time, altering <a href='#Paint'>Paint</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4308 | </tr> |
| 4309 | </table> |
| 4310 | |
| 4311 | ### Example |
| 4312 | |
| 4313 | <div><fiddle-embed name="bf10f838b330f0a3a3266d42ea68a638"></fiddle-embed></div> |
| 4314 | |
| 4315 | --- |
| 4316 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4317 | <a name='SkPaint_setLooper'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4318 | ## setLooper |
| 4319 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4320 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4321 | void <a href='#SkPaint_setLooper'>setLooper</a>(<a href='undocumented#sk_sp'>sk sp</a><<a href='undocumented#SkDrawLooper'>SkDrawLooper</a>> drawLooper) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4322 | </pre> |
| 4323 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4324 | Deprecated. |
| 4325 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4326 | --- |
| 4327 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4328 | ## <a name='Text_Align'>Text Align</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4329 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4330 | ## <a name='SkPaint_Align'>Enum SkPaint::Align</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4331 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4332 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4333 | enum <a href='#SkPaint_Align'>Align</a> { |
| 4334 | <a href='#SkPaint_kLeft_Align'>kLeft Align</a>, |
| 4335 | <a href='#SkPaint_kCenter_Align'>kCenter Align</a>, |
| 4336 | <a href='#SkPaint_kRight_Align'>kRight Align</a>, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 4337 | }; |
Cary Clark | d98f78c | 2018-04-26 08:32:37 -0400 | [diff] [blame] | 4338 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4339 | static constexpr int <a href='#SkPaint_kAlignCount'>kAlignCount</a> = 3; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4340 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4341 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4342 | <a href='#SkPaint_Align'>Align</a> adjusts the text relative to the text position. |
| 4343 | <a href='#SkPaint_Align'>Align</a> affects <a href='undocumented#Glyph'>Glyphs</a> drawn with: <a href='SkCanvas_Reference#SkCanvas_drawText'>SkCanvas::drawText</a>, <a href='SkCanvas_Reference#SkCanvas_drawPosText'>SkCanvas::drawPosText</a>, |
| 4344 | <a href='SkCanvas_Reference#SkCanvas_drawPosTextH'>SkCanvas::drawPosTextH</a>, <a href='SkCanvas_Reference#SkCanvas_drawTextOnPath'>SkCanvas::drawTextOnPath</a>, |
| 4345 | <a href='SkCanvas_Reference#SkCanvas_drawTextOnPathHV'>SkCanvas::drawTextOnPathHV</a>, <a href='SkCanvas_Reference#SkCanvas_drawTextRSXform'>SkCanvas::drawTextRSXform</a>, <a href='SkCanvas_Reference#SkCanvas_drawTextBlob'>SkCanvas::drawTextBlob</a>, |
| 4346 | and <a href='SkCanvas_Reference#SkCanvas_drawString'>SkCanvas::drawString</a>; |
| 4347 | as well as calls that place text <a href='undocumented#Glyph'>Glyphs</a> like <a href='#SkPaint_getTextWidths'>getTextWidths</a> and <a href='#SkPaint_getTextPath'>getTextPath</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4348 | |
| 4349 | The text position is set by the font for both horizontal and vertical text. |
| 4350 | Typically, for horizontal text, the position is to the left side of the glyph on the |
| 4351 | base line; and for vertical text, the position is the horizontal center of the glyph |
| 4352 | at the caps height. |
| 4353 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4354 | <a href='#SkPaint_Align'>Align</a> adjusts the glyph position to center it or move it to abut the position |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4355 | using the metrics returned by the font. |
| 4356 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4357 | <a href='#SkPaint_Align'>Align</a> defaults to <a href='#SkPaint_kLeft_Align'>kLeft Align</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4358 | |
| 4359 | ### Constants |
| 4360 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4361 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4362 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 4363 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 4364 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4365 | <tr style='background-color: #f0f0f0; '> |
| 4366 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kLeft_Align'><code>SkPaint::kLeft_Align</code></a></td> |
| 4367 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 4368 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4369 | Leaves the glyph at the position computed by the font offset by the text position. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4370 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4371 | </tr> |
| 4372 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4373 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kCenter_Align'><code>SkPaint::kCenter_Align</code></a></td> |
| 4374 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 4375 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4376 | Moves the glyph half its width if <a href='#SkPaint_Flags'>Flags</a> has <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> clear, and |
| 4377 | half its height if <a href='#SkPaint_Flags'>Flags</a> has <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> set. |
| 4378 | </td> |
| 4379 | </tr> |
| 4380 | <tr style='background-color: #f0f0f0; '> |
| 4381 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kRight_Align'><code>SkPaint::kRight_Align</code></a></td> |
| 4382 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 4383 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4384 | Moves the glyph by its width if <a href='#SkPaint_Flags'>Flags</a> has <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> clear, |
| 4385 | and by its height if <a href='#SkPaint_Flags'>Flags</a> has <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> set. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4386 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4387 | </tr> |
| 4388 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4389 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kAlignCount'><code>SkPaint::kAlignCount</code></a></td> |
| 4390 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 4391 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 4392 | May be used to verify that <a href='#SkPaint_Align'>Align</a> is a legal value. |
| 4393 | </td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4394 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4395 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4396 | |
| 4397 | ### Example |
| 4398 | |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4399 | <div><fiddle-embed name="702617fd9ebc3f12e30081b5db93e8a8"><div>Each position separately moves the glyph in drawPosText. |
| 4400 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4401 | |
| 4402 | ### Example |
| 4403 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4404 | <div><fiddle-embed name="f1cbbbafe6b3c52b81309cccbf96a308"><div><a href='#Vertical_Text'>Vertical Text</a> treats <a href='#SkPaint_kLeft_Align'>kLeft Align</a> as top align, and <a href='#SkPaint_kRight_Align'>kRight Align</a> as bottom align. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4405 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4406 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4407 | <a name='SkPaint_getTextAlign'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4408 | ## getTextAlign |
| 4409 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4410 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4411 | <a href='#SkPaint_Align'>Align</a> <a href='#SkPaint_getTextAlign'>getTextAlign</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4412 | </pre> |
| 4413 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4414 | Returns <a href='#Text_Align'>Text Align</a>. |
| 4415 | Returns <a href='#SkPaint_kLeft_Align'>kLeft Align</a> if <a href='#Text_Align'>Text Align</a> has not been set. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4416 | |
| 4417 | ### Return Value |
| 4418 | |
| 4419 | text placement relative to position |
| 4420 | |
| 4421 | ### Example |
| 4422 | |
| 4423 | <div><fiddle-embed name="2df932f526e810f74c89d30ec3f4c947"> |
| 4424 | |
| 4425 | #### Example Output |
| 4426 | |
| 4427 | ~~~~ |
| 4428 | kLeft_Align == default |
| 4429 | ~~~~ |
| 4430 | |
| 4431 | </fiddle-embed></div> |
| 4432 | |
| 4433 | --- |
| 4434 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4435 | <a name='SkPaint_setTextAlign'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4436 | ## setTextAlign |
| 4437 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4438 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4439 | void <a href='#SkPaint_setTextAlign'>setTextAlign</a>(<a href='#SkPaint_Align'>Align</a> align) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4440 | </pre> |
| 4441 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4442 | Sets <a href='#Text_Align'>Text Align</a> to <a href='#SkPaint_setTextAlign_align'>align</a>. |
| 4443 | Has no effect if <a href='#SkPaint_setTextAlign_align'>align</a> is an invalid value. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4444 | |
| 4445 | ### Parameters |
| 4446 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4447 | <table> <tr> <td><a name='SkPaint_setTextAlign_align'><code><strong>align</strong></code></a></td> |
| 4448 | <td>text placement relative to position</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4449 | </tr> |
| 4450 | </table> |
| 4451 | |
| 4452 | ### Example |
| 4453 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4454 | <div><fiddle-embed name="d37540afd918506ac2594665ca63979b"><div><a href='undocumented#Text'>Text</a> is left-aligned by default, and then set to center. Setting the |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4455 | alignment out of range has no effect. |
| 4456 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4457 | |
| 4458 | --- |
| 4459 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4460 | ## <a name='Text_Size'>Text Size</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4461 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4462 | <a href='#Text_Size'>Text Size</a> adjusts the overall text size in points. |
| 4463 | <a href='#Text_Size'>Text Size</a> can be set to any positive value or zero. |
| 4464 | <a href='#Text_Size'>Text Size</a> defaults to 12. |
| 4465 | Set <a href='undocumented#SkPaintDefaults_TextSize'>SkPaintDefaults TextSize</a> at compile time to change the default setting. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4466 | |
| 4467 | ### Example |
| 4468 | |
| 4469 | <div><fiddle-embed name="91c9a3e498bb9412e4522a95d076ed5f"></fiddle-embed></div> |
| 4470 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4471 | <a name='SkPaint_getTextSize'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4472 | ## getTextSize |
| 4473 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4474 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4475 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getTextSize'>getTextSize</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4476 | </pre> |
| 4477 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4478 | Returns <a href='#Text_Size'>Text Size</a> in points. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4479 | |
| 4480 | ### Return Value |
| 4481 | |
| 4482 | typographic height of text |
| 4483 | |
| 4484 | ### Example |
| 4485 | |
| 4486 | <div><fiddle-embed name="983e2a71ba72d4ba8c945420040b8f1c"></fiddle-embed></div> |
| 4487 | |
| 4488 | --- |
| 4489 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4490 | <a name='SkPaint_setTextSize'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4491 | ## setTextSize |
| 4492 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4493 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4494 | void <a href='#SkPaint_setTextSize'>setTextSize</a>(<a href='undocumented#SkScalar'>SkScalar</a> textSize) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4495 | </pre> |
| 4496 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4497 | Sets <a href='#Text_Size'>Text Size</a> in points. |
| 4498 | Has no effect if <a href='#SkPaint_setTextSize_textSize'>textSize</a> is not greater than or equal to zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4499 | |
| 4500 | ### Parameters |
| 4501 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4502 | <table> <tr> <td><a name='SkPaint_setTextSize_textSize'><code><strong>textSize</strong></code></a></td> |
| 4503 | <td>typographic height of text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4504 | </tr> |
| 4505 | </table> |
| 4506 | |
| 4507 | ### Example |
| 4508 | |
| 4509 | <div><fiddle-embed name="6510c9e2f57b83c47e67829e7a68d493"></fiddle-embed></div> |
| 4510 | |
| 4511 | --- |
| 4512 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4513 | ## <a name='Text_Scale_X'>Text Scale X</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4514 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4515 | <a href='#Text_Scale_X'>Text Scale X</a> adjusts the text horizontal scale. |
| 4516 | <a href='undocumented#Text'>Text</a> scaling approximates condensed and expanded type faces when the actual face |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4517 | is not available. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4518 | <a href='#Text_Scale_X'>Text Scale X</a> can be set to any value. |
| 4519 | <a href='#Text_Scale_X'>Text Scale X</a> defaults to 1. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4520 | |
| 4521 | ### Example |
| 4522 | |
| 4523 | <div><fiddle-embed name="d13d787c1e36f515319fc998411c1d91"></fiddle-embed></div> |
| 4524 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4525 | <a name='SkPaint_getTextScaleX'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4526 | ## getTextScaleX |
| 4527 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4528 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4529 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getTextScaleX'>getTextScaleX</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4530 | </pre> |
| 4531 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4532 | Returns <a href='#Text_Scale_X'>Text Scale X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4533 | Default value is 1. |
| 4534 | |
| 4535 | ### Return Value |
| 4536 | |
| 4537 | text horizontal scale |
| 4538 | |
| 4539 | ### Example |
| 4540 | |
| 4541 | <div><fiddle-embed name="5dc8e58f6910cb8e4de9ed60f888188b"></fiddle-embed></div> |
| 4542 | |
| 4543 | --- |
| 4544 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4545 | <a name='SkPaint_setTextScaleX'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4546 | ## setTextScaleX |
| 4547 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4548 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4549 | void <a href='#SkPaint_setTextScaleX'>setTextScaleX</a>(<a href='undocumented#SkScalar'>SkScalar</a> scaleX) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4550 | </pre> |
| 4551 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4552 | Sets <a href='#Text_Scale_X'>Text Scale X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4553 | Default value is 1. |
| 4554 | |
| 4555 | ### Parameters |
| 4556 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4557 | <table> <tr> <td><a name='SkPaint_setTextScaleX_scaleX'><code><strong>scaleX</strong></code></a></td> |
| 4558 | <td>text horizontal scale</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4559 | </tr> |
| 4560 | </table> |
| 4561 | |
| 4562 | ### Example |
| 4563 | |
| 4564 | <div><fiddle-embed name="a75bbdb8bb866b125c4c1dd5e967d470"></fiddle-embed></div> |
| 4565 | |
| 4566 | --- |
| 4567 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4568 | ## <a name='Text_Skew_X'>Text Skew X</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4569 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4570 | <a href='#Text_Skew_X'>Text Skew X</a> adjusts the text horizontal slant. |
| 4571 | <a href='undocumented#Text'>Text</a> skewing approximates italic and oblique type faces when the actual face |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4572 | is not available. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4573 | <a href='#Text_Skew_X'>Text Skew X</a> can be set to any value. |
| 4574 | <a href='#Text_Skew_X'>Text Skew X</a> defaults to 0. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4575 | |
| 4576 | ### Example |
| 4577 | |
| 4578 | <div><fiddle-embed name="aff208b0aab265f273045b27e683c17c"></fiddle-embed></div> |
| 4579 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4580 | <a name='SkPaint_getTextSkewX'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4581 | ## getTextSkewX |
| 4582 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4583 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4584 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getTextSkewX'>getTextSkewX</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4585 | </pre> |
| 4586 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4587 | Returns <a href='#Text_Skew_X'>Text Skew X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4588 | Default value is zero. |
| 4589 | |
| 4590 | ### Return Value |
| 4591 | |
| 4592 | additional shear in x-axis relative to y-axis |
| 4593 | |
| 4594 | ### Example |
| 4595 | |
| 4596 | <div><fiddle-embed name="11c10f466dae0d1639dbb9f6a0040218"></fiddle-embed></div> |
| 4597 | |
| 4598 | --- |
| 4599 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4600 | <a name='SkPaint_setTextSkewX'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4601 | ## setTextSkewX |
| 4602 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4603 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4604 | void <a href='#SkPaint_setTextSkewX'>setTextSkewX</a>(<a href='undocumented#SkScalar'>SkScalar</a> skewX) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4605 | </pre> |
| 4606 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4607 | Sets <a href='#Text_Skew_X'>Text Skew X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4608 | Default value is zero. |
| 4609 | |
| 4610 | ### Parameters |
| 4611 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4612 | <table> <tr> <td><a name='SkPaint_setTextSkewX_skewX'><code><strong>skewX</strong></code></a></td> |
| 4613 | <td>additional shear in x-axis relative to y-axis</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4614 | </tr> |
| 4615 | </table> |
| 4616 | |
| 4617 | ### Example |
| 4618 | |
| 4619 | <div><fiddle-embed name="6bd705a6e0c5f8ee24f302fe531bfabc"></fiddle-embed></div> |
| 4620 | |
| 4621 | --- |
| 4622 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4623 | ## <a name='Text_Encoding'>Text Encoding</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4624 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4625 | ## <a name='SkPaint_TextEncoding'>Enum SkPaint::TextEncoding</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4626 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4627 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4628 | enum <a href='#SkPaint_TextEncoding'>TextEncoding</a> { |
| 4629 | <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a>, |
| 4630 | <a href='#SkPaint_kUTF16_TextEncoding'>kUTF16 TextEncoding</a>, |
| 4631 | <a href='#SkPaint_kUTF32_TextEncoding'>kUTF32 TextEncoding</a>, |
| 4632 | <a href='#SkPaint_kGlyphID_TextEncoding'>kGlyphID TextEncoding</a>, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 4633 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4634 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4635 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4636 | <a href='#SkPaint_TextEncoding'>TextEncoding</a> determines whether text specifies character codes and their encoded |
| 4637 | size, or glyph indices. Characters are encoded as specified by the <a href='https://unicode.org/standard/standard.html'>Unicode standard</a></a> . |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4638 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4639 | Character codes encoded size are specified by UTF-8, UTF-16, or UTF-32. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4640 | All character code formats are able to represent all of Unicode, differing only |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4641 | in the total storage required. |
| 4642 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4643 | <a href='https://tools.ietf.org/html/rfc3629'>UTF-8 (RFC 3629)</a></a> encodes each character as one or more 8-bit bytes. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4644 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4645 | <a href='https://tools.ietf.org/html/rfc2781'>UTF-16 (RFC 2781)</a></a> encodes each character as one or two 16-bit words. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 4646 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4647 | <a href='https://www.unicode.org/versions/Unicode5.0.0/ch03.pdf'>UTF-32</a></a> encodes each character as one 32-bit word. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4648 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4649 | <a href='undocumented#Font_Manager'>Font Manager</a> uses font data to convert character code points into glyph indices. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4650 | A glyph index is a 16-bit word. |
| 4651 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4652 | <a href='#SkPaint_TextEncoding'>TextEncoding</a> is set to <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a> by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4653 | |
| 4654 | ### Constants |
| 4655 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4656 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4657 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 4658 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 4659 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4660 | <tr style='background-color: #f0f0f0; '> |
| 4661 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kUTF8_TextEncoding'><code>SkPaint::kUTF8_TextEncoding</code></a></td> |
| 4662 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> |
| 4663 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4664 | uses bytes to represent UTF-8 or ASCII</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4665 | </tr> |
| 4666 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4667 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kUTF16_TextEncoding'><code>SkPaint::kUTF16_TextEncoding</code></a></td> |
| 4668 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> |
| 4669 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4670 | uses two byte words to represent most of Unicode</td> |
| 4671 | </tr> |
| 4672 | <tr style='background-color: #f0f0f0; '> |
| 4673 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kUTF32_TextEncoding'><code>SkPaint::kUTF32_TextEncoding</code></a></td> |
| 4674 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> |
| 4675 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4676 | uses four byte words to represent all of Unicode</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4677 | </tr> |
| 4678 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4679 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_kGlyphID_TextEncoding'><code>SkPaint::kGlyphID_TextEncoding</code></a></td> |
| 4680 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> |
| 4681 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4682 | uses two byte words to represent glyph indices</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4683 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4684 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4685 | |
| 4686 | ### Example |
| 4687 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4688 | <div><fiddle-embed name="b29294e7f29d160a1b46abf2dcec9d2a"><div>First line is encoded in UTF-8. |
| 4689 | Second line is encoded in UTF-16. |
| 4690 | Third line is encoded in UTF-32. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4691 | Fourth line has 16-bit glyph indices. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4692 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4693 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4694 | <a name='SkPaint_getTextEncoding'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4695 | ## getTextEncoding |
| 4696 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4697 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4698 | <a href='#SkPaint_TextEncoding'>TextEncoding</a> <a href='#SkPaint_getTextEncoding'>getTextEncoding</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4699 | </pre> |
| 4700 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4701 | Returns <a href='#Text_Encoding'>Text Encoding</a>. |
| 4702 | <a href='#Text_Encoding'>Text Encoding</a> determines how character code points are mapped to font glyph indices. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4703 | |
| 4704 | ### Return Value |
| 4705 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4706 | one of: <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a>, <a href='#SkPaint_kUTF16_TextEncoding'>kUTF16 TextEncoding</a>, <a href='#SkPaint_kUTF32_TextEncoding'>kUTF32 TextEncoding</a>, or |
| 4707 | <a href='#SkPaint_kGlyphID_TextEncoding'>kGlyphID TextEncoding</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4708 | |
| 4709 | ### Example |
| 4710 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 4711 | <div><fiddle-embed name="c6cc2780a9828b3af8c4621c12b29a1b"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4712 | |
| 4713 | #### Example Output |
| 4714 | |
| 4715 | ~~~~ |
| 4716 | kUTF8_TextEncoding == text encoding |
| 4717 | kGlyphID_TextEncoding == text encoding |
| 4718 | ~~~~ |
| 4719 | |
| 4720 | </fiddle-embed></div> |
| 4721 | |
| 4722 | --- |
| 4723 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4724 | <a name='SkPaint_setTextEncoding'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4725 | ## setTextEncoding |
| 4726 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4727 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 4728 | void <a href='#SkPaint_setTextEncoding'>setTextEncoding</a>(<a href='#SkPaint_TextEncoding'>TextEncoding</a> encoding) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4729 | </pre> |
| 4730 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4731 | Sets <a href='#Text_Encoding'>Text Encoding</a> to <a href='#SkPaint_setTextEncoding_encoding'>encoding</a>. |
| 4732 | <a href='#Text_Encoding'>Text Encoding</a> determines how character code points are mapped to font glyph indices. |
| 4733 | Invalid values for <a href='#SkPaint_setTextEncoding_encoding'>encoding</a> are ignored. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4734 | |
| 4735 | ### Parameters |
| 4736 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4737 | <table> <tr> <td><a name='SkPaint_setTextEncoding_encoding'><code><strong>encoding</strong></code></a></td> |
| 4738 | <td>one of: <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a>, <a href='#SkPaint_kUTF16_TextEncoding'>kUTF16 TextEncoding</a>, <a href='#SkPaint_kUTF32_TextEncoding'>kUTF32 TextEncoding</a>, or |
| 4739 | <a href='#SkPaint_kGlyphID_TextEncoding'>kGlyphID TextEncoding</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4740 | </tr> |
Cary Clark | bad5ad7 | 2017-08-03 17:14:08 -0400 | [diff] [blame] | 4741 | # |
| 4742 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4743 | </table> |
| 4744 | |
| 4745 | ### Example |
| 4746 | |
Cary Clark | 75fd449 | 2018-06-20 12:45:16 -0400 | [diff] [blame^] | 4747 | <div><fiddle-embed name="6d9ffdd3c5543e9f12972a06dd4a0ce5"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4748 | |
| 4749 | #### Example Output |
| 4750 | |
| 4751 | ~~~~ |
| 4752 | 4 != text encoding |
| 4753 | ~~~~ |
| 4754 | |
| 4755 | </fiddle-embed></div> |
| 4756 | |
| 4757 | --- |
| 4758 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4759 | ## <a name='Font_Metrics'>Font Metrics</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 4760 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4761 | <a href='#Font_Metrics'>Font Metrics</a> describe dimensions common to the <a href='undocumented#Glyph'>Glyphs</a> in <a href='undocumented#Typeface'>Typeface</a>. |
| 4762 | The dimensions are computed by <a href='undocumented#Font_Manager'>Font Manager</a> from font data and do not take |
| 4763 | <a href='#Paint'>Paint</a> settings other than <a href='#Text_Size'>Text Size</a> into account. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4764 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4765 | <a href='undocumented#Font'>Font</a> dimensions specify the anchor to the left of the glyph at baseline as the origin. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4766 | X-axis values to the left of the glyph are negative, and to the right of the left glyph edge |
| 4767 | are positive. |
| 4768 | Y-axis values above the baseline are negative, and below the baseline are positive. |
| 4769 | |
| 4770 | ### Example |
| 4771 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4772 | <div><fiddle-embed name="2bfa3783719fcd769af177a1b244e171"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4773 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4774 | # <a name='SkPaint_FontMetrics'>Struct SkPaint::FontMetrics</a> |
| 4775 | |
| 4776 | ## <a name='Font_Metrics_Constant'>Constant</a> |
| 4777 | |
| 4778 | |
| 4779 | SkPaint related constants are defined by <code>enum</code>, <code>enum class</code>, <code>#define</code>, <code>const</code>, and <code>constexpr</code>. |
| 4780 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4781 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 4782 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4783 | <tr style='background-color: #f0f0f0; '> |
| 4784 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_FontMetricsFlags'>FontMetricsFlags</a></td> |
| 4785 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>valid <a href='#Font_Metrics'>Font Metrics</a></td> |
| 4786 | </tr> |
| 4787 | <tr> |
| 4788 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'>kStrikeoutPositionIsValid Flag</a></td> |
| 4789 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set if <a href='#SkPaint_FontMetrics_fStrikeoutPosition'>fStrikeoutPosition</a> is valid</td> |
| 4790 | </tr> |
| 4791 | <tr style='background-color: #f0f0f0; '> |
| 4792 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'>kStrikeoutThicknessIsValid Flag</a></td> |
| 4793 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set if <a href='#SkPaint_FontMetrics_fStrikeoutThickness'>fStrikeoutThickness</a> is valid</td> |
| 4794 | </tr> |
| 4795 | <tr> |
| 4796 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'>kUnderlinePositionIsValid Flag</a></td> |
| 4797 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set if <a href='#SkPaint_FontMetrics_fUnderlinePosition'>fUnderlinePosition</a> is valid</td> |
| 4798 | </tr> |
| 4799 | <tr style='background-color: #f0f0f0; '> |
| 4800 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'>kUnderlineThicknessIsValid Flag</a></td> |
| 4801 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>set if <a href='#SkPaint_FontMetrics_fUnderlineThickness'>fUnderlineThickness</a> is valid</td> |
| 4802 | </tr> |
| 4803 | </table> |
| 4804 | |
| 4805 | |
| 4806 | ## <a name='Font_Metrics_Member_Function'>Member_Function</a> |
| 4807 | |
| 4808 | |
| 4809 | SkPaint member functions read and modify the structure properties. |
| 4810 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4811 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 4812 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4813 | <tr style='background-color: #f0f0f0; '> |
| 4814 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_hasStrikeoutPosition'>hasStrikeoutPosition</a></td> |
| 4815 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns strikeout position if set</td> |
| 4816 | </tr> |
| 4817 | <tr> |
| 4818 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_hasStrikeoutThickness'>hasStrikeoutThickness</a></td> |
| 4819 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns strikeout thickness if set</td> |
| 4820 | </tr> |
| 4821 | <tr style='background-color: #f0f0f0; '> |
| 4822 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_hasUnderlinePosition'>hasUnderlinePosition</a></td> |
| 4823 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns underline position if set</td> |
| 4824 | </tr> |
| 4825 | <tr> |
| 4826 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_hasUnderlineThickness'>hasUnderlineThickness</a></td> |
| 4827 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns underline thickness if set</td> |
| 4828 | </tr> |
| 4829 | </table> |
| 4830 | |
| 4831 | |
| 4832 | ## <a name='Font_Metrics_Member'>Member</a> |
| 4833 | |
| 4834 | |
| 4835 | SkPaint members may be read and written directly without using a member function. |
| 4836 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4837 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 4838 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4839 | <tr style='background-color: #f0f0f0; '> |
| 4840 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fAscent'>fAscent</a></td> |
| 4841 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>distance to reserve above baseline</td> |
| 4842 | </tr> |
| 4843 | <tr> |
| 4844 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fAvgCharWidth'>fAvgCharWidth</a></td> |
| 4845 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>average character width</td> |
| 4846 | </tr> |
| 4847 | <tr style='background-color: #f0f0f0; '> |
| 4848 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fBottom'>fBottom</a></td> |
| 4849 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>extent below baseline</td> |
| 4850 | </tr> |
| 4851 | <tr> |
| 4852 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fCapHeight'>fCapHeight</a></td> |
| 4853 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>height of an upper-case letter</td> |
| 4854 | </tr> |
| 4855 | <tr style='background-color: #f0f0f0; '> |
| 4856 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fDescent'>fDescent</a></td> |
| 4857 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>distance to reserve below baseline</td> |
| 4858 | </tr> |
| 4859 | <tr> |
| 4860 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fFlags'>fFlags</a></td> |
| 4861 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>is set to <a href='#SkPaint_FontMetrics_FontMetricsFlags'>FontMetricsFlags</a> when metrics are valid</td> |
| 4862 | </tr> |
| 4863 | <tr style='background-color: #f0f0f0; '> |
| 4864 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fLeading'>fLeading</a></td> |
| 4865 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>distance to add between lines</td> |
| 4866 | </tr> |
| 4867 | <tr> |
| 4868 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fMaxCharWidth'>fMaxCharWidth</a></td> |
| 4869 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>maximum character width</td> |
| 4870 | </tr> |
| 4871 | <tr style='background-color: #f0f0f0; '> |
| 4872 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fStrikeoutPosition'>fStrikeoutPosition</a></td> |
| 4873 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>strikeout position relative to baseline</td> |
| 4874 | </tr> |
| 4875 | <tr> |
| 4876 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fStrikeoutThickness'>fStrikeoutThickness</a></td> |
| 4877 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>strikeout thickness</td> |
| 4878 | </tr> |
| 4879 | <tr style='background-color: #f0f0f0; '> |
| 4880 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fTop'>fTop</a></td> |
| 4881 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>extent above baseline</td> |
| 4882 | </tr> |
| 4883 | <tr> |
| 4884 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fUnderlinePosition'>fUnderlinePosition</a></td> |
| 4885 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>underline position relative to baseline</td> |
| 4886 | </tr> |
| 4887 | <tr style='background-color: #f0f0f0; '> |
| 4888 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fUnderlineThickness'>fUnderlineThickness</a></td> |
| 4889 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>underline thickness</td> |
| 4890 | </tr> |
| 4891 | <tr> |
| 4892 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fXHeight'>fXHeight</a></td> |
| 4893 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>height of lower-case 'x'</td> |
| 4894 | </tr> |
| 4895 | <tr style='background-color: #f0f0f0; '> |
| 4896 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fXMax'>fXMax</a></td> |
| 4897 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>maximum x</td> |
| 4898 | </tr> |
| 4899 | <tr> |
| 4900 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_FontMetrics_fXMin'>fXMin</a></td> |
| 4901 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>minimum x</td> |
| 4902 | </tr> |
| 4903 | </table> |
| 4904 | |
Cary Clark | e4aa371 | 2017-09-15 02:56:12 -0400 | [diff] [blame] | 4905 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4906 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4907 | struct <a href='#SkPaint_FontMetrics'>FontMetrics</a> { |
| 4908 | enum <a href='#SkPaint_FontMetrics_FontMetricsFlags'>FontMetricsFlags</a> { |
| 4909 | <a href='#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'>kUnderlineThicknessIsValid Flag</a> = 1 << 0, |
| 4910 | <a href='#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'>kUnderlinePositionIsValid Flag</a> = 1 << 1, |
| 4911 | <a href='#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'>kStrikeoutThicknessIsValid Flag</a> = 1 << 2, |
| 4912 | <a href='#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'>kStrikeoutPositionIsValid Flag</a> = 1 << 3, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 4913 | }; |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4914 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4915 | uint32_t <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a>; |
| 4916 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fTop'>fTop</a>; |
| 4917 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fAscent'>fAscent</a>; |
| 4918 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fDescent'>fDescent</a>; |
| 4919 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fBottom'>fBottom</a>; |
| 4920 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fLeading'>fLeading</a>; |
| 4921 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fAvgCharWidth'>fAvgCharWidth</a>; |
| 4922 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fMaxCharWidth'>fMaxCharWidth</a>; |
| 4923 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fXMin'>fXMin</a>; |
| 4924 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fXMax'>fXMax</a>; |
| 4925 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fXHeight'>fXHeight</a>; |
| 4926 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fCapHeight'>fCapHeight</a>; |
| 4927 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fUnderlineThickness'>fUnderlineThickness</a>; |
| 4928 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fUnderlinePosition'>fUnderlinePosition</a>; |
| 4929 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fStrikeoutThickness'>fStrikeoutThickness</a>; |
| 4930 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_FontMetrics_fStrikeoutPosition'>fStrikeoutPosition</a>; |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4931 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4932 | bool <a href='#SkPaint_FontMetrics_hasUnderlineThickness'>hasUnderlineThickness(SkScalar* thickness)</a> const; |
| 4933 | bool <a href='#SkPaint_FontMetrics_hasUnderlinePosition'>hasUnderlinePosition(SkScalar* position)</a> const; |
| 4934 | bool <a href='#SkPaint_FontMetrics_hasStrikeoutThickness'>hasStrikeoutThickness(SkScalar* thickness)</a> const; |
| 4935 | bool <a href='#SkPaint_FontMetrics_hasStrikeoutPosition'>hasStrikeoutPosition(SkScalar* position)</a> const; |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 4936 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4937 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4938 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4939 | <a href='#SkPaint_FontMetrics'>FontMetrics</a> is filled out by <a href='#SkPaint_getFontMetrics'>getFontMetrics</a>. <a href='#SkPaint_FontMetrics'>FontMetrics</a> contents reflect the values |
| 4940 | computed by <a href='undocumented#Font_Manager'>Font Manager</a> using <a href='undocumented#Typeface'>Typeface</a>. Values are set to zero if they are |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4941 | not available. |
| 4942 | |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 4943 | All vertical values are relative to the baseline, on a y-axis pointing down. |
| 4944 | Zero is on the baseline, negative values are above the baseline, and positive |
| 4945 | values are below the baseline. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4946 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4947 | <a href='#SkPaint_FontMetrics_fUnderlineThickness'>fUnderlineThickness</a> and <a href='#SkPaint_FontMetrics_fUnderlinePosition'>fUnderlinePosition</a> have a bit set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a> if their values |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4948 | are valid, since their value may be zero. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4949 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4950 | <a href='#SkPaint_FontMetrics_fStrikeoutThickness'>fStrikeoutThickness</a> and <a href='#SkPaint_FontMetrics_fStrikeoutPosition'>fStrikeoutPosition</a> have a bit set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a> if their values |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4951 | are valid, since their value may be zero. |
| 4952 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4953 | ## <a name='SkPaint_FontMetrics_FontMetricsFlags'>Enum SkPaint::FontMetrics::FontMetricsFlags</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4954 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4955 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4956 | enum <a href='#SkPaint_FontMetrics_FontMetricsFlags'>FontMetricsFlags</a> { |
| 4957 | <a href='#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'>kUnderlineThicknessIsValid Flag</a> = 1 << 0, |
| 4958 | <a href='#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'>kUnderlinePositionIsValid Flag</a> = 1 << 1, |
| 4959 | <a href='#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'>kStrikeoutThicknessIsValid Flag</a> = 1 << 2, |
| 4960 | <a href='#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'>kStrikeoutPositionIsValid Flag</a> = 1 << 3, |
Cary Clark | 186d08f | 2018-04-03 08:43:27 -0400 | [diff] [blame] | 4961 | }; |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 4962 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4963 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4964 | <a href='#SkPaint_FontMetrics_FontMetricsFlags'>FontMetricsFlags</a> are set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a> when underline and strikeout metrics are valid; |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4965 | the underline or strikeout metric may be valid and zero. |
| 4966 | Fonts with embedded bitmaps may not have valid underline or strikeout metrics. |
| 4967 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4968 | ### Constants |
| 4969 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4970 | <table style='border-collapse: collapse; width: 62.5em'> |
| 4971 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th> |
| 4972 | <th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th> |
| 4973 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 4974 | <tr style='background-color: #f0f0f0; '> |
| 4975 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'><code>SkPaint::FontMetrics::kUnderlineThicknessIsValid_Flag</code></a></td> |
| 4976 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0001</td> |
| 4977 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4978 | set if fUnderlineThickness is valid</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4979 | </tr> |
| 4980 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4981 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'><code>SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag</code></a></td> |
| 4982 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0002</td> |
| 4983 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4984 | set if fUnderlinePosition is valid</td> |
| 4985 | </tr> |
| 4986 | <tr style='background-color: #f0f0f0; '> |
| 4987 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'><code>SkPaint::FontMetrics::kStrikeoutThicknessIsValid_Flag</code></a></td> |
| 4988 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0004</td> |
| 4989 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4990 | set if fStrikeoutThickness is valid</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4991 | </tr> |
| 4992 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 4993 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'><code>SkPaint::FontMetrics::kStrikeoutPositionIsValid_Flag</code></a></td> |
| 4994 | <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0x0008</td> |
| 4995 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 4996 | set if fStrikeoutPosition is valid</td> |
| 4997 | </tr> |
| 4998 | </table> |
| 4999 | |
| 5000 | ### Members |
| 5001 | |
| 5002 | <table style='border-collapse: collapse; width: 62.5em'> |
| 5003 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Type</th> |
| 5004 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Name</th> |
| 5005 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 5006 | <tr style='background-color: #f0f0f0; '> |
| 5007 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uint32_t</td> |
| 5008 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fFlags'><code>fFlags</code></a></td> |
| 5009 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 5010 | is set to FontMetricsFlags when metrics are valid</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5011 | </tr> |
| 5012 | <tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5013 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5014 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fTop'><code>fTop</code></a></td> |
| 5015 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5016 | Greatest extent above the baseline for any glyph. |
| 5017 | Typically less than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5018 | </td> |
| 5019 | </tr> |
| 5020 | <tr style='background-color: #f0f0f0; '> |
| 5021 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5022 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fAscent'><code>fAscent</code></a></td> |
| 5023 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5024 | Recommended distance above the baseline to reserve for a line of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5025 | Typically less than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5026 | </td> |
| 5027 | </tr> |
| 5028 | <tr> |
| 5029 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5030 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fDescent'><code>fDescent</code></a></td> |
| 5031 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5032 | Recommended distance below the baseline to reserve for a line of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5033 | Typically greater than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5034 | </td> |
| 5035 | </tr> |
| 5036 | <tr style='background-color: #f0f0f0; '> |
| 5037 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5038 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fBottom'><code>fBottom</code></a></td> |
| 5039 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5040 | Greatest extent below the baseline for any glyph. |
| 5041 | Typically greater than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5042 | </td> |
| 5043 | </tr> |
| 5044 | <tr> |
| 5045 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5046 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fLeading'><code>fLeading</code></a></td> |
| 5047 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5048 | Recommended distance to add between lines of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5049 | Typically greater than or equal to zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5050 | </td> |
| 5051 | </tr> |
| 5052 | <tr style='background-color: #f0f0f0; '> |
| 5053 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5054 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fAvgCharWidth'><code>fAvgCharWidth</code></a></td> |
| 5055 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5056 | Average character width, if it is available. |
| 5057 | Zero if no average width is stored in the font. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5058 | </td> |
| 5059 | </tr> |
| 5060 | <tr> |
| 5061 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5062 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fMaxCharWidth'><code>fMaxCharWidth</code></a></td> |
| 5063 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 5064 | maximum character width</td> |
| 5065 | </tr> |
| 5066 | <tr style='background-color: #f0f0f0; '> |
| 5067 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5068 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fXMin'><code>fXMin</code></a></td> |
| 5069 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5070 | Minimum bounding box x-axis value for all <a href='undocumented#Glyph'>Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5071 | Typically less than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5072 | </td> |
| 5073 | </tr> |
| 5074 | <tr> |
| 5075 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5076 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fXMax'><code>fXMax</code></a></td> |
| 5077 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5078 | Maximum bounding box x-axis value for all <a href='undocumented#Glyph'>Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5079 | Typically greater than zero. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5080 | </td> |
| 5081 | </tr> |
| 5082 | <tr style='background-color: #f0f0f0; '> |
| 5083 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5084 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fXHeight'><code>fXHeight</code></a></td> |
| 5085 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5086 | May be zero if no lower-case height is stored in the font. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5087 | </td> |
| 5088 | </tr> |
| 5089 | <tr> |
| 5090 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5091 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fCapHeight'><code>fCapHeight</code></a></td> |
| 5092 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5093 | May be zero if no upper-case height is stored in the font. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5094 | </td> |
| 5095 | </tr> |
| 5096 | <tr style='background-color: #f0f0f0; '> |
| 5097 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5098 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fUnderlineThickness'><code>fUnderlineThickness</code></a></td> |
| 5099 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 5100 | If the metric is valid, the <a href='#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'>kUnderlineThicknessIsValid Flag</a> is set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a>. |
| 5101 | If <a href='#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag'>kUnderlineThicknessIsValid Flag</a> is clear, <a href='#SkPaint_FontMetrics_fUnderlineThickness'>fUnderlineThickness</a> is zero. |
| 5102 | </td> |
| 5103 | </tr> |
| 5104 | <tr> |
| 5105 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5106 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fUnderlinePosition'><code>fUnderlinePosition</code></a></td> |
| 5107 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5108 | Position of the top of the underline stroke relative to the baseline. |
| 5109 | Typically positive when valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5110 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5111 | If the metric is valid, the <a href='#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'>kUnderlinePositionIsValid Flag</a> is set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a>. |
| 5112 | If <a href='#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag'>kUnderlinePositionIsValid Flag</a> is clear, <a href='#SkPaint_FontMetrics_fUnderlinePosition'>fUnderlinePosition</a> is zero. |
| 5113 | </td> |
| 5114 | </tr> |
| 5115 | <tr style='background-color: #f0f0f0; '> |
| 5116 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5117 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fStrikeoutThickness'><code>fStrikeoutThickness</code></a></td> |
| 5118 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
| 5119 | If the metric is valid, the <a href='#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'>kStrikeoutThicknessIsValid Flag</a> is set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a>. |
| 5120 | If <a href='#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag'>kStrikeoutThicknessIsValid Flag</a> is clear, <a href='#SkPaint_FontMetrics_fStrikeoutThickness'>fStrikeoutThickness</a> is zero. |
| 5121 | </td> |
| 5122 | </tr> |
| 5123 | <tr> |
| 5124 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>SkScalar</td> |
| 5125 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkPaint_FontMetrics_fStrikeoutPosition'><code>fStrikeoutPosition</code></a></td> |
| 5126 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 5127 | Position of the bottom of the strikeout stroke relative to the baseline. |
| 5128 | Typically negative when valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5129 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5130 | If the metric is valid, the <a href='#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'>kStrikeoutPositionIsValid Flag</a> is set in <a href='#SkPaint_FontMetrics_fFlags'>fFlags</a>. |
| 5131 | If <a href='#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag'>kStrikeoutPositionIsValid Flag</a> is clear, <a href='#SkPaint_FontMetrics_fStrikeoutPosition'>fStrikeoutPosition</a> is zero. |
| 5132 | </td> |
| 5133 | </tr> |
| 5134 | </table> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5135 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5136 | <a name='SkPaint_FontMetrics_hasUnderlineThickness'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5137 | ## hasUnderlineThickness |
| 5138 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5139 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5140 | bool <a href='#SkPaint_FontMetrics_hasUnderlineThickness'>hasUnderlineThickness</a>(<a href='undocumented#SkScalar'>SkScalar</a>* thickness) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5141 | </pre> |
| 5142 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5143 | If <a href='#Font_Metrics'>Font Metrics</a> has a valid underline <a href='#SkPaint_FontMetrics_hasUnderlineThickness_thickness'>thickness</a>, return true, and set |
| 5144 | <a href='#SkPaint_FontMetrics_hasUnderlineThickness_thickness'>thickness</a> to that value. If the underline <a href='#SkPaint_FontMetrics_hasUnderlineThickness_thickness'>thickness</a> is not valid, |
| 5145 | return false, and ignore <a href='#SkPaint_FontMetrics_hasUnderlineThickness_thickness'>thickness</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5146 | |
| 5147 | ### Parameters |
| 5148 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5149 | <table> <tr> <td><a name='SkPaint_FontMetrics_hasUnderlineThickness_thickness'><code><strong>thickness</strong></code></a></td> |
| 5150 | <td>storage for underline width</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5151 | </tr> |
| 5152 | </table> |
| 5153 | |
| 5154 | ### Return Value |
| 5155 | |
| 5156 | true if font specifies underline width |
| 5157 | |
| 5158 | --- |
| 5159 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5160 | <a name='SkPaint_FontMetrics_hasUnderlinePosition'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5161 | ## hasUnderlinePosition |
| 5162 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5163 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5164 | bool <a href='#SkPaint_FontMetrics_hasUnderlinePosition'>hasUnderlinePosition</a>(<a href='undocumented#SkScalar'>SkScalar</a>* position) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5165 | </pre> |
| 5166 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5167 | If <a href='#Font_Metrics'>Font Metrics</a> has a valid underline <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a>, return true, and set |
| 5168 | <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a> to that value. If the underline <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a> is not valid, |
| 5169 | return false, and ignore <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5170 | |
| 5171 | ### Parameters |
| 5172 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5173 | <table> <tr> <td><a name='SkPaint_FontMetrics_hasUnderlinePosition_position'><code><strong>position</strong></code></a></td> |
| 5174 | <td>storage for underline <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5175 | </tr> |
| 5176 | </table> |
| 5177 | |
| 5178 | ### Return Value |
| 5179 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5180 | true if font specifies underline <a href='#SkPaint_FontMetrics_hasUnderlinePosition_position'>position</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5181 | |
| 5182 | --- |
| 5183 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5184 | <a name='SkPaint_FontMetrics_hasStrikeoutThickness'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5185 | ## hasStrikeoutThickness |
| 5186 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5187 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5188 | bool <a href='#SkPaint_FontMetrics_hasStrikeoutThickness'>hasStrikeoutThickness</a>(<a href='undocumented#SkScalar'>SkScalar</a>* thickness) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5189 | </pre> |
| 5190 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5191 | If <a href='#Font_Metrics'>Font Metrics</a> has a valid strikeout <a href='#SkPaint_FontMetrics_hasStrikeoutThickness_thickness'>thickness</a>, return true, and set |
| 5192 | <a href='#SkPaint_FontMetrics_hasStrikeoutThickness_thickness'>thickness</a> to that value. If the underline <a href='#SkPaint_FontMetrics_hasStrikeoutThickness_thickness'>thickness</a> is not valid, |
| 5193 | return false, and ignore <a href='#SkPaint_FontMetrics_hasStrikeoutThickness_thickness'>thickness</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5194 | |
| 5195 | ### Parameters |
| 5196 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5197 | <table> <tr> <td><a name='SkPaint_FontMetrics_hasStrikeoutThickness_thickness'><code><strong>thickness</strong></code></a></td> |
| 5198 | <td>storage for strikeout width</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5199 | </tr> |
| 5200 | </table> |
| 5201 | |
| 5202 | ### Return Value |
| 5203 | |
| 5204 | true if font specifies strikeout width |
| 5205 | |
| 5206 | --- |
| 5207 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5208 | <a name='SkPaint_FontMetrics_hasStrikeoutPosition'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5209 | ## hasStrikeoutPosition |
| 5210 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5211 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5212 | bool <a href='#SkPaint_FontMetrics_hasStrikeoutPosition'>hasStrikeoutPosition</a>(<a href='undocumented#SkScalar'>SkScalar</a>* position) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5213 | </pre> |
| 5214 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5215 | If <a href='#Font_Metrics'>Font Metrics</a> has a valid strikeout <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a>, return true, and set |
| 5216 | <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a> to that value. If the underline <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a> is not valid, |
| 5217 | return false, and ignore <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5218 | |
| 5219 | ### Parameters |
| 5220 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5221 | <table> <tr> <td><a name='SkPaint_FontMetrics_hasStrikeoutPosition_position'><code><strong>position</strong></code></a></td> |
| 5222 | <td>storage for strikeout <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5223 | </tr> |
| 5224 | </table> |
| 5225 | |
| 5226 | ### Return Value |
| 5227 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5228 | true if font specifies strikeout <a href='#SkPaint_FontMetrics_hasStrikeoutPosition_position'>position</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5229 | |
| 5230 | --- |
| 5231 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5232 | <a name='SkPaint_getFontMetrics'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5233 | ## getFontMetrics |
| 5234 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5235 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5236 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getFontMetrics'>getFontMetrics</a>(<a href='#SkPaint_FontMetrics'>FontMetrics</a>* metrics, <a href='undocumented#SkScalar'>SkScalar</a> scale = 0) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5237 | </pre> |
| 5238 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5239 | Returns <a href='#Font_Metrics'>Font Metrics</a> associated with <a href='undocumented#Typeface'>Typeface</a>. |
| 5240 | The return value is the recommended spacing between lines: the sum of <a href='#SkPaint_getFontMetrics_metrics'>metrics</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5241 | descent, ascent, and leading. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5242 | If <a href='#SkPaint_getFontMetrics_metrics'>metrics</a> is not nullptr, <a href='#Font_Metrics'>Font Metrics</a> is copied to <a href='#SkPaint_getFontMetrics_metrics'>metrics</a>. |
| 5243 | Results are scaled by <a href='#Text_Size'>Text Size</a> but does not take into account |
| 5244 | dimensions required by <a href='#Text_Scale_X'>Text Scale X</a>, <a href='#Text_Skew_X'>Text Skew X</a>, <a href='#Fake_Bold'>Fake Bold</a>, |
| 5245 | <a href='#Style_Stroke'>Style Stroke</a>, and <a href='undocumented#Path_Effect'>Path Effect</a>. |
| 5246 | Results can be additionally scaled by <a href='#SkPaint_getFontMetrics_scale'>scale</a>; a <a href='#SkPaint_getFontMetrics_scale'>scale</a> of zero |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5247 | is ignored. |
| 5248 | |
| 5249 | ### Parameters |
| 5250 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5251 | <table> <tr> <td><a name='SkPaint_getFontMetrics_metrics'><code><strong>metrics</strong></code></a></td> |
| 5252 | <td>storage for <a href='#Font_Metrics'>Font Metrics</a> from <a href='undocumented#Typeface'>Typeface</a>; may be nullptr</td> |
| 5253 | </tr> |
| 5254 | <tr> <td><a name='SkPaint_getFontMetrics_scale'><code><strong>scale</strong></code></a></td> |
| 5255 | <td>additional multiplier for returned values</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5256 | </tr> |
| 5257 | </table> |
| 5258 | |
| 5259 | ### Return Value |
| 5260 | |
| 5261 | recommended spacing between lines |
| 5262 | |
| 5263 | ### Example |
| 5264 | |
| 5265 | <div><fiddle-embed name="b899d84caba6607340322d317992d070"></fiddle-embed></div> |
| 5266 | |
| 5267 | ### See Also |
| 5268 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5269 | <a href='#Text_Size'>Text Size</a> <a href='undocumented#Typeface'>Typeface</a> <a href='#Typeface_Methods'>Typeface Methods</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5270 | |
| 5271 | --- |
| 5272 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5273 | <a name='SkPaint_getFontSpacing'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5274 | ## getFontSpacing |
| 5275 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5276 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5277 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_getFontSpacing'>getFontSpacing</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5278 | </pre> |
| 5279 | |
| 5280 | Returns the recommended spacing between lines: the sum of metrics |
| 5281 | descent, ascent, and leading. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5282 | Result is scaled by <a href='#Text_Size'>Text Size</a> but does not take into account |
| 5283 | dimensions required by stroking and <a href='undocumented#Path_Effect'>Path Effect</a>. |
| 5284 | Returns the same result as <a href='#SkPaint_getFontMetrics'>getFontMetrics</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5285 | |
| 5286 | ### Return Value |
| 5287 | |
| 5288 | recommended spacing between lines |
| 5289 | |
| 5290 | ### Example |
| 5291 | |
| 5292 | <div><fiddle-embed name="424741e26e1b174e43087d67422ce14f"> |
| 5293 | |
| 5294 | #### Example Output |
| 5295 | |
| 5296 | ~~~~ |
| 5297 | textSize: 12 fontSpacing: 13.9688 |
| 5298 | textSize: 18 fontSpacing: 20.9531 |
| 5299 | textSize: 24 fontSpacing: 27.9375 |
| 5300 | textSize: 32 fontSpacing: 37.25 |
| 5301 | ~~~~ |
| 5302 | |
| 5303 | </fiddle-embed></div> |
| 5304 | |
| 5305 | --- |
| 5306 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5307 | <a name='SkPaint_getFontBounds'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5308 | ## getFontBounds |
| 5309 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5310 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5311 | <a href='SkRect_Reference#SkRect'>SkRect</a> <a href='#SkPaint_getFontBounds'>getFontBounds</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5312 | </pre> |
| 5313 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5314 | Returns the union of bounds of all <a href='undocumented#Glyph'>Glyphs</a>. |
| 5315 | Returned dimensions are computed by <a href='undocumented#Font_Manager'>Font Manager</a> from font data, |
| 5316 | ignoring <a href='#SkPaint_Hinting'>Hinting</a>. Includes <a href='#Text_Size'>Text Size</a>, <a href='#Text_Scale_X'>Text Scale X</a>, |
| 5317 | and <a href='#Text_Skew_X'>Text Skew X</a>, but not <a href='#Fake_Bold'>Fake Bold</a> or <a href='undocumented#Path_Effect'>Path Effect</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5318 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5319 | If <a href='#Text_Size'>Text Size</a> is large, <a href='#Text_Scale_X'>Text Scale X</a> is one, and <a href='#Text_Skew_X'>Text Skew X</a> is zero, |
| 5320 | returns the same bounds as <a href='#Font_Metrics'>Font Metrics</a> { <a href='#SkPaint_FontMetrics_fXMin'>FontMetrics::fXMin</a>, |
| 5321 | <a href='#SkPaint_FontMetrics_fTop'>FontMetrics::fTop</a>, <a href='#SkPaint_FontMetrics_fXMax'>FontMetrics::fXMax</a>, <a href='#SkPaint_FontMetrics_fBottom'>FontMetrics::fBottom</a> }. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5322 | |
| 5323 | ### Return Value |
| 5324 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5325 | union of bounds of all <a href='undocumented#Glyph'>Glyphs</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5326 | |
| 5327 | ### Example |
| 5328 | |
| 5329 | <div><fiddle-embed name="facaddeec7943bc491988e345e27e65f"> |
| 5330 | |
| 5331 | #### Example Output |
| 5332 | |
| 5333 | ~~~~ |
| 5334 | metrics bounds = { -12.2461, -14.7891, 21.5215, 5.55469 } |
| 5335 | font bounds = { -12.2461, -14.7891, 21.5215, 5.55469 } |
| 5336 | ~~~~ |
| 5337 | |
| 5338 | </fiddle-embed></div> |
| 5339 | |
| 5340 | --- |
| 5341 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5342 | <a name='SkPaint_textToGlyphs'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5343 | ## textToGlyphs |
| 5344 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5345 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5346 | int <a href='#SkPaint_textToGlyphs'>textToGlyphs</a>(const void* text, size_t byteLength, <a href='undocumented#SkGlyphID'>SkGlyphID</a> glyphs[]) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5347 | </pre> |
| 5348 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5349 | Converts <a href='#SkPaint_textToGlyphs_text'>text</a> into glyph indices. |
| 5350 | Returns the number of glyph indices represented by <a href='#SkPaint_textToGlyphs_text'>text</a>. |
| 5351 | <a href='#Text_Encoding'>Text Encoding</a> specifies how <a href='#SkPaint_textToGlyphs_text'>text</a> represents characters or <a href='#SkPaint_textToGlyphs_glyphs'>glyphs</a>. |
| 5352 | <a href='#SkPaint_textToGlyphs_glyphs'>glyphs</a> may be nullptr, to compute the glyph count. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5353 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5354 | Does not check <a href='#SkPaint_textToGlyphs_text'>text</a> for valid character codes or valid glyph indices. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5355 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5356 | If <a href='#SkPaint_textToGlyphs_byteLength'>byteLength</a> equals zero, returns zero. |
| 5357 | If <a href='#SkPaint_textToGlyphs_byteLength'>byteLength</a> includes a partial character, the partial character is ignored. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5358 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5359 | If <a href='#Text_Encoding'>Text Encoding</a> is <a href='#SkPaint_kUTF8_TextEncoding'>kUTF8 TextEncoding</a> and |
| 5360 | <a href='#SkPaint_textToGlyphs_text'>text</a> contains an invalid UTF-8 sequence, zero is returned. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5361 | |
| 5362 | ### Parameters |
| 5363 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5364 | <table> <tr> <td><a name='SkPaint_textToGlyphs_text'><code><strong>text</strong></code></a></td> |
| 5365 | <td>character storage encoded with <a href='#Text_Encoding'>Text Encoding</a></td> |
| 5366 | </tr> |
| 5367 | <tr> <td><a name='SkPaint_textToGlyphs_byteLength'><code><strong>byteLength</strong></code></a></td> |
| 5368 | <td>length of character storage in bytes</td> |
| 5369 | </tr> |
| 5370 | <tr> <td><a name='SkPaint_textToGlyphs_glyphs'><code><strong>glyphs</strong></code></a></td> |
| 5371 | <td>storage for glyph indices; may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5372 | </tr> |
| 5373 | </table> |
| 5374 | |
| 5375 | ### Return Value |
| 5376 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5377 | number of <a href='#SkPaint_textToGlyphs_glyphs'>glyphs</a> represented by <a href='#SkPaint_textToGlyphs_text'>text</a> of length <a href='#SkPaint_textToGlyphs_byteLength'>byteLength</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5378 | |
| 5379 | ### Example |
| 5380 | |
| 5381 | <div><fiddle-embed name="343e9471a7f7b5f09abdc3b44983433b"></fiddle-embed></div> |
| 5382 | |
| 5383 | --- |
| 5384 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5385 | <a name='SkPaint_countText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5386 | ## countText |
| 5387 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5388 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5389 | int <a href='#SkPaint_countText'>countText</a>(const void* text, size_t byteLength) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5390 | </pre> |
| 5391 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5392 | Returns the number of <a href='undocumented#Glyph'>Glyphs</a> in <a href='#SkPaint_countText_text'>text</a>. |
| 5393 | Uses <a href='#Text_Encoding'>Text Encoding</a> to count the <a href='undocumented#Glyph'>Glyphs</a>. |
| 5394 | Returns the same result as <a href='#SkPaint_textToGlyphs'>textToGlyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5395 | |
| 5396 | ### Parameters |
| 5397 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5398 | <table> <tr> <td><a name='SkPaint_countText_text'><code><strong>text</strong></code></a></td> |
| 5399 | <td>character storage encoded with <a href='#Text_Encoding'>Text Encoding</a></td> |
| 5400 | </tr> |
| 5401 | <tr> <td><a name='SkPaint_countText_byteLength'><code><strong>byteLength</strong></code></a></td> |
| 5402 | <td>length of character storage in bytes</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5403 | </tr> |
| 5404 | </table> |
| 5405 | |
| 5406 | ### Return Value |
| 5407 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5408 | number of <a href='undocumented#Glyph'>Glyphs</a> represented by <a href='#SkPaint_countText_text'>text</a> of length <a href='#SkPaint_countText_byteLength'>byteLength</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5409 | |
| 5410 | ### Example |
| 5411 | |
| 5412 | <div><fiddle-embed name="85436c71aab5410767fc688ab0573e09"> |
| 5413 | |
| 5414 | #### Example Output |
| 5415 | |
| 5416 | ~~~~ |
| 5417 | count = 5 |
| 5418 | ~~~~ |
| 5419 | |
| 5420 | </fiddle-embed></div> |
| 5421 | |
| 5422 | --- |
| 5423 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5424 | <a name='SkPaint_containsText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5425 | ## containsText |
| 5426 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5427 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5428 | bool <a href='#SkPaint_containsText'>containsText</a>(const void* text, size_t byteLength) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5429 | </pre> |
| 5430 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5431 | Returns true if all <a href='#SkPaint_containsText_text'>text</a> corresponds to a non-zero glyph index. |
| 5432 | Returns false if any characters in <a href='#SkPaint_containsText_text'>text</a> are not supported in |
| 5433 | <a href='undocumented#Typeface'>Typeface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5434 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5435 | If <a href='#Text_Encoding'>Text Encoding</a> is <a href='#SkPaint_kGlyphID_TextEncoding'>kGlyphID TextEncoding</a>, |
| 5436 | returns true if all glyph indices in <a href='#SkPaint_containsText_text'>text</a> are non-zero; |
| 5437 | does not check to see if <a href='#SkPaint_containsText_text'>text</a> contains valid glyph indices for <a href='undocumented#Typeface'>Typeface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5438 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5439 | Returns true if <a href='#SkPaint_containsText_byteLength'>byteLength</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5440 | |
| 5441 | ### Parameters |
| 5442 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5443 | <table> <tr> <td><a name='SkPaint_containsText_text'><code><strong>text</strong></code></a></td> |
| 5444 | <td>array of characters or <a href='undocumented#Glyph'>Glyphs</a></td> |
| 5445 | </tr> |
| 5446 | <tr> <td><a name='SkPaint_containsText_byteLength'><code><strong>byteLength</strong></code></a></td> |
| 5447 | <td>number of bytes in <a href='#SkPaint_containsText_text'>text</a> array</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5448 | </tr> |
| 5449 | </table> |
| 5450 | |
| 5451 | ### Return Value |
| 5452 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5453 | true if all <a href='#SkPaint_containsText_text'>text</a> corresponds to a non-zero glyph index |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5454 | |
| 5455 | ### Example |
| 5456 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5457 | <div><fiddle-embed name="71b417d6651cbcecae1a05067c94ab3e"><div><a href='#SkPaint_containsText'>containsText</a> succeeds for degree symbol, but cannot find a glyph index |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5458 | corresponding to the Unicode surrogate code point. |
| 5459 | </div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5460 | |
| 5461 | #### Example Output |
| 5462 | |
| 5463 | ~~~~ |
| 5464 | 0x00b0 == has char |
| 5465 | 0xd800 != has char |
| 5466 | ~~~~ |
| 5467 | |
| 5468 | </fiddle-embed></div> |
| 5469 | |
| 5470 | ### Example |
| 5471 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5472 | <div><fiddle-embed name="083557b6f653d6fc00a34e01f87b74ff"><div><a href='#SkPaint_containsText'>containsText</a> returns true that glyph index is greater than zero, not |
| 5473 | that it corresponds to an entry in <a href='undocumented#Typeface'>Typeface</a>. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5474 | </div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5475 | |
| 5476 | #### Example Output |
| 5477 | |
| 5478 | ~~~~ |
| 5479 | 0x01ff == has glyph |
| 5480 | 0x0000 != has glyph |
| 5481 | 0xffff == has glyph |
| 5482 | ~~~~ |
| 5483 | |
| 5484 | </fiddle-embed></div> |
| 5485 | |
| 5486 | ### See Also |
| 5487 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5488 | <a href='#SkPaint_setTextEncoding'>setTextEncoding</a> <a href='undocumented#Typeface'>Typeface</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5489 | |
| 5490 | --- |
| 5491 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5492 | <a name='SkPaint_glyphsToUnichars'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5493 | ## glyphsToUnichars |
| 5494 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5495 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5496 | void <a href='#SkPaint_glyphsToUnichars'>glyphsToUnichars</a>(const <a href='undocumented#SkGlyphID'>SkGlyphID</a> glyphs[], int count, <a href='undocumented#SkUnichar'>SkUnichar</a> text[]) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5497 | </pre> |
| 5498 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5499 | Converts <a href='#SkPaint_glyphsToUnichars_glyphs'>glyphs</a> into <a href='#SkPaint_glyphsToUnichars_text'>text</a> if possible. |
| 5500 | <a href='undocumented#Glyph'>Glyph</a> values without direct Unicode equivalents are mapped to zero. |
| 5501 | Uses the <a href='undocumented#Typeface'>Typeface</a>, but is unaffected |
| 5502 | by <a href='#Text_Encoding'>Text Encoding</a>; the <a href='#SkPaint_glyphsToUnichars_text'>text</a> values returned are equivalent to <a href='#SkPaint_kUTF32_TextEncoding'>kUTF32 TextEncoding</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5503 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5504 | Only supported on platforms that use FreeType as the <a href='undocumented#Engine'>Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5505 | |
| 5506 | ### Parameters |
| 5507 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5508 | <table> <tr> <td><a name='SkPaint_glyphsToUnichars_glyphs'><code><strong>glyphs</strong></code></a></td> |
| 5509 | <td>array of indices into font</td> |
| 5510 | </tr> |
| 5511 | <tr> <td><a name='SkPaint_glyphsToUnichars_count'><code><strong>count</strong></code></a></td> |
| 5512 | <td>length of glyph array</td> |
| 5513 | </tr> |
| 5514 | <tr> <td><a name='SkPaint_glyphsToUnichars_text'><code><strong>text</strong></code></a></td> |
| 5515 | <td>storage for character codes, one per glyph</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5516 | </tr> |
| 5517 | </table> |
| 5518 | |
| 5519 | ### Example |
| 5520 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5521 | <div><fiddle-embed name="c12686b0b3e0a87d0a248bbfc57e9492"><div>Convert UTF-8 <a href='#SkPaint_glyphsToUnichars_text'>text</a> to <a href='#SkPaint_glyphsToUnichars_glyphs'>glyphs</a>; then convert <a href='#SkPaint_glyphsToUnichars_glyphs'>glyphs</a> to Unichar code points. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5522 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5523 | |
| 5524 | --- |
| 5525 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5526 | ## <a name='Measure_Text'>Measure Text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5527 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5528 | <a name='SkPaint_measureText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5529 | ## measureText |
| 5530 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5531 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5532 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_measureText'>measureText</a>(const void* text, size_t length, <a href='SkRect_Reference#SkRect'>SkRect</a>* bounds) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5533 | </pre> |
| 5534 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5535 | Returns the advance width of <a href='#SkPaint_measureText_text'>text</a> if <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is clear, |
| 5536 | and the height of <a href='#SkPaint_measureText_text'>text</a> if <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is set. |
| 5537 | The advance is the normal distance to move before drawing additional <a href='#SkPaint_measureText_text'>text</a>. |
| 5538 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_measureText_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the font metrics, |
| 5539 | and <a href='#Text_Size'>Text Size</a>, <a href='#Text_Scale_X'>Text Scale X</a>, <a href='#Text_Skew_X'>Text Skew X</a>, <a href='#Stroke_Width'>Stroke Width</a>, and |
| 5540 | <a href='undocumented#Path_Effect'>Path Effect</a> to scale the metrics and <a href='#SkPaint_measureText_bounds'>bounds</a>. |
| 5541 | Returns the bounding box of <a href='#SkPaint_measureText_text'>text</a> if <a href='#SkPaint_measureText_bounds'>bounds</a> is not nullptr. |
| 5542 | The bounding box is computed as if the <a href='#SkPaint_measureText_text'>text</a> was drawn at the origin. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5543 | |
| 5544 | ### Parameters |
| 5545 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5546 | <table> <tr> <td><a name='SkPaint_measureText_text'><code><strong>text</strong></code></a></td> |
| 5547 | <td>character codes or glyph indices to be measured</td> |
| 5548 | </tr> |
| 5549 | <tr> <td><a name='SkPaint_measureText_length'><code><strong>length</strong></code></a></td> |
| 5550 | <td>number of bytes of <a href='#SkPaint_measureText_text'>text</a> to measure</td> |
| 5551 | </tr> |
| 5552 | <tr> <td><a name='SkPaint_measureText_bounds'><code><strong>bounds</strong></code></a></td> |
| 5553 | <td>returns bounding box relative to (0, 0) if not nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5554 | </tr> |
| 5555 | </table> |
| 5556 | |
| 5557 | ### Return Value |
| 5558 | |
| 5559 | advance width or height |
| 5560 | |
| 5561 | ### Example |
| 5562 | |
| 5563 | <div><fiddle-embed name="06084f609184470135a9cd9ebc5af149"></fiddle-embed></div> |
| 5564 | |
| 5565 | --- |
| 5566 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5567 | <a name='SkPaint_measureText_2'></a> |
Cary Clark | 2dc84ad | 2018-01-26 12:56:22 -0500 | [diff] [blame] | 5568 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5569 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5570 | <a href='undocumented#SkScalar'>SkScalar</a> <a href='#SkPaint_measureText'>measureText</a>(const void* text, size_t length) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5571 | </pre> |
| 5572 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5573 | Returns the advance width of <a href='#SkPaint_measureText_2_text'>text</a> if <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is clear, |
| 5574 | and the height of <a href='#SkPaint_measureText_2_text'>text</a> if <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is set. |
| 5575 | The advance is the normal distance to move before drawing additional <a href='#SkPaint_measureText_2_text'>text</a>. |
| 5576 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_measureText_2_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the font metrics, |
| 5577 | and <a href='#Text_Size'>Text Size</a> to scale the metrics. |
| 5578 | Does not scale the advance or bounds by <a href='#Fake_Bold'>Fake Bold</a> or <a href='undocumented#Path_Effect'>Path Effect</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5579 | |
| 5580 | ### Parameters |
| 5581 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5582 | <table> <tr> <td><a name='SkPaint_measureText_2_text'><code><strong>text</strong></code></a></td> |
| 5583 | <td>character codes or glyph indices to be measured</td> |
| 5584 | </tr> |
| 5585 | <tr> <td><a name='SkPaint_measureText_2_length'><code><strong>length</strong></code></a></td> |
| 5586 | <td>number of bytes of <a href='#SkPaint_measureText_2_text'>text</a> to measure</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5587 | </tr> |
| 5588 | </table> |
| 5589 | |
| 5590 | ### Return Value |
| 5591 | |
| 5592 | advance width or height |
| 5593 | |
| 5594 | ### Example |
| 5595 | |
| 5596 | <div><fiddle-embed name="f1139a5ddd17fd47c2f45f6e642cac76"> |
| 5597 | |
| 5598 | #### Example Output |
| 5599 | |
| 5600 | ~~~~ |
| 5601 | default width = 5 |
| 5602 | double width = 10 |
| 5603 | ~~~~ |
| 5604 | |
| 5605 | </fiddle-embed></div> |
| 5606 | |
| 5607 | --- |
| 5608 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5609 | <a name='SkPaint_breakText'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5610 | ## breakText |
| 5611 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5612 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5613 | size_t <a href='#SkPaint_breakText'>breakText</a>(const void* text, size_t length, <a href='undocumented#SkScalar'>SkScalar</a> maxWidth, |
| 5614 | <a href='undocumented#SkScalar'>SkScalar</a>* measuredWidth = nullptr) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5615 | </pre> |
| 5616 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5617 | Returns the bytes of <a href='#SkPaint_breakText_text'>text</a> that fit within <a href='#SkPaint_breakText_maxWidth'>maxWidth</a>. |
| 5618 | If <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is clear, the <a href='#SkPaint_breakText_text'>text</a> fragment fits if its advance width is less than or |
| 5619 | equal to <a href='#SkPaint_breakText_maxWidth'>maxWidth</a>. |
| 5620 | If <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is set, the <a href='#SkPaint_breakText_text'>text</a> fragment fits if its advance height is less than or |
| 5621 | equal to <a href='#SkPaint_breakText_maxWidth'>maxWidth</a>. |
| 5622 | Measures only while the advance is less than or equal to <a href='#SkPaint_breakText_maxWidth'>maxWidth</a>. |
| 5623 | Returns the advance or the <a href='#SkPaint_breakText_text'>text</a> fragment in <a href='#SkPaint_breakText_measuredWidth'>measuredWidth</a> if it not nullptr. |
| 5624 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_breakText_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the font metrics, |
| 5625 | and <a href='#Text_Size'>Text Size</a> to scale the metrics. |
| 5626 | Does not scale the advance or bounds by <a href='#Fake_Bold'>Fake Bold</a> or <a href='undocumented#Path_Effect'>Path Effect</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5627 | |
| 5628 | ### Parameters |
| 5629 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5630 | <table> <tr> <td><a name='SkPaint_breakText_text'><code><strong>text</strong></code></a></td> |
| 5631 | <td>character codes or glyph indices to be measured</td> |
| 5632 | </tr> |
| 5633 | <tr> <td><a name='SkPaint_breakText_length'><code><strong>length</strong></code></a></td> |
| 5634 | <td>number of bytes of <a href='#SkPaint_breakText_text'>text</a> to measure</td> |
| 5635 | </tr> |
| 5636 | <tr> <td><a name='SkPaint_breakText_maxWidth'><code><strong>maxWidth</strong></code></a></td> |
| 5637 | <td>advance limit; <a href='#SkPaint_breakText_text'>text</a> is measured while advance is less than <a href='#SkPaint_breakText_maxWidth'>maxWidth</a></td> |
| 5638 | </tr> |
| 5639 | <tr> <td><a name='SkPaint_breakText_measuredWidth'><code><strong>measuredWidth</strong></code></a></td> |
| 5640 | <td>returns the width of the <a href='#SkPaint_breakText_text'>text</a> less than or equal to <a href='#SkPaint_breakText_maxWidth'>maxWidth</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5641 | </tr> |
| 5642 | </table> |
| 5643 | |
| 5644 | ### Return Value |
| 5645 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5646 | bytes of <a href='#SkPaint_breakText_text'>text</a> that fit, always less than or equal to <a href='#SkPaint_breakText_length'>length</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5647 | |
| 5648 | ### Example |
| 5649 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5650 | <div><fiddle-embed name="fd0033470ccbd5c7059670fdbf96cffc"><div><a href='undocumented#Line'>Line</a> under "" shows desired width, shorter than available characters. |
| 5651 | <a href='undocumented#Line'>Line</a> under "" shows measured width after breaking <a href='#SkPaint_breakText_text'>text</a>. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5652 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5653 | |
| 5654 | --- |
| 5655 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5656 | <a name='SkPaint_getTextWidths'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5657 | ## getTextWidths |
| 5658 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5659 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5660 | int <a href='#SkPaint_getTextWidths'>getTextWidths</a>(const void* text, size_t byteLength, <a href='undocumented#SkScalar'>SkScalar</a> widths[], <a href='SkRect_Reference#SkRect'>SkRect</a> bounds[] = nullptr) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5661 | </pre> |
| 5662 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5663 | Retrieves the advance and <a href='#SkPaint_getTextWidths_bounds'>bounds</a> for each glyph in <a href='#SkPaint_getTextWidths_text'>text</a>, and returns |
| 5664 | the glyph count in <a href='#SkPaint_getTextWidths_text'>text</a>. |
| 5665 | Both <a href='#SkPaint_getTextWidths_widths'>widths</a> and <a href='#SkPaint_getTextWidths_bounds'>bounds</a> may be nullptr. |
| 5666 | If <a href='#SkPaint_getTextWidths_widths'>widths</a> is not nullptr, <a href='#SkPaint_getTextWidths_widths'>widths</a> must be an array of glyph count entries. |
| 5667 | if <a href='#SkPaint_getTextWidths_bounds'>bounds</a> is not nullptr, <a href='#SkPaint_getTextWidths_bounds'>bounds</a> must be an array of glyph count entries. |
| 5668 | If <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is clear, <a href='#SkPaint_getTextWidths_widths'>widths</a> returns the horizontal advance. |
| 5669 | If <a href='#SkPaint_kVerticalText_Flag'>kVerticalText Flag</a> is set, <a href='#SkPaint_getTextWidths_widths'>widths</a> returns the vertical advance. |
| 5670 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getTextWidths_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the font metrics, |
| 5671 | and <a href='#Text_Size'>Text Size</a> to scale the <a href='#SkPaint_getTextWidths_widths'>widths</a> and <a href='#SkPaint_getTextWidths_bounds'>bounds</a>. |
| 5672 | Does not scale the advance by <a href='#Fake_Bold'>Fake Bold</a> or <a href='undocumented#Path_Effect'>Path Effect</a>. |
| 5673 | Does include <a href='#Fake_Bold'>Fake Bold</a> and <a href='undocumented#Path_Effect'>Path Effect</a> in the <a href='#SkPaint_getTextWidths_bounds'>bounds</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5674 | |
| 5675 | ### Parameters |
| 5676 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5677 | <table> <tr> <td><a name='SkPaint_getTextWidths_text'><code><strong>text</strong></code></a></td> |
| 5678 | <td>character codes or glyph indices to be measured</td> |
| 5679 | </tr> |
| 5680 | <tr> <td><a name='SkPaint_getTextWidths_byteLength'><code><strong>byteLength</strong></code></a></td> |
| 5681 | <td>number of bytes of <a href='#SkPaint_getTextWidths_text'>text</a> to measure</td> |
| 5682 | </tr> |
| 5683 | <tr> <td><a name='SkPaint_getTextWidths_widths'><code><strong>widths</strong></code></a></td> |
| 5684 | <td>returns <a href='#SkPaint_getTextWidths_text'>text</a> advances for each glyph; may be nullptr</td> |
| 5685 | </tr> |
| 5686 | <tr> <td><a name='SkPaint_getTextWidths_bounds'><code><strong>bounds</strong></code></a></td> |
| 5687 | <td>returns <a href='#SkPaint_getTextWidths_bounds'>bounds</a> for each glyph relative to (0, 0); may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5688 | </tr> |
| 5689 | </table> |
| 5690 | |
| 5691 | ### Return Value |
| 5692 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5693 | glyph count in <a href='#SkPaint_getTextWidths_text'>text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5694 | |
| 5695 | ### Example |
| 5696 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5697 | <div><fiddle-embed name="6b9e101f49e9c2c28755c5bdcef64dfb"><div>Bounds of <a href='undocumented#Glyph'>Glyphs</a> increase for stroked <a href='#SkPaint_getTextWidths_text'>text</a>, but <a href='#SkPaint_getTextWidths_text'>text</a> advance remains the same. |
| 5698 | The underlines show the <a href='#SkPaint_getTextWidths_text'>text</a> advance, spaced to keep them distinct. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5699 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5700 | |
| 5701 | --- |
| 5702 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5703 | ## <a name='Text_Path'>Text Path</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 5704 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5705 | <a href='#Text_Path'>Text Path</a> describes the geometry of <a href='undocumented#Glyph'>Glyphs</a> used to draw text. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5706 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5707 | <a name='SkPaint_getTextPath'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5708 | ## getTextPath |
| 5709 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5710 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5711 | void <a href='#SkPaint_getTextPath'>getTextPath</a>(const void* text, size_t length, <a href='undocumented#SkScalar'>SkScalar</a> x, <a href='undocumented#SkScalar'>SkScalar</a> y, <a href='SkPath_Reference#SkPath'>SkPath</a>* path) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5712 | </pre> |
| 5713 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5714 | Returns the geometry as <a href='SkPath_Reference#Path'>Path</a> equivalent to the drawn <a href='#SkPaint_getTextPath_text'>text</a>. |
| 5715 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getTextPath_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5716 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5717 | All of the glyph paths are stored in <a href='#SkPaint_getTextPath_path'>path</a>. |
| 5718 | Uses <a href='#SkPaint_getTextPath_x'>x</a>, <a href='#SkPaint_getTextPath_y'>y</a>, and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getTextPath_path'>path</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5719 | |
| 5720 | ### Parameters |
| 5721 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5722 | <table> <tr> <td><a name='SkPaint_getTextPath_text'><code><strong>text</strong></code></a></td> |
| 5723 | <td>character codes or glyph indices</td> |
| 5724 | </tr> |
| 5725 | <tr> <td><a name='SkPaint_getTextPath_length'><code><strong>length</strong></code></a></td> |
| 5726 | <td>number of bytes of <a href='#SkPaint_getTextPath_text'>text</a></td> |
| 5727 | </tr> |
| 5728 | <tr> <td><a name='SkPaint_getTextPath_x'><code><strong>x</strong></code></a></td> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5729 | <td><a href='#SkPaint_getTextPath_x'>x</a>-axis value of the origin of the <a href='#SkPaint_getTextPath_text'>text</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5730 | </tr> |
| 5731 | <tr> <td><a name='SkPaint_getTextPath_y'><code><strong>y</strong></code></a></td> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5732 | <td><a href='#SkPaint_getTextPath_y'>y</a>-axis value of the origin of the <a href='#SkPaint_getTextPath_text'>text</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5733 | </tr> |
| 5734 | <tr> <td><a name='SkPaint_getTextPath_path'><code><strong>path</strong></code></a></td> |
| 5735 | <td>geometry of the <a href='undocumented#Glyph'>Glyphs</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5736 | </tr> |
| 5737 | </table> |
| 5738 | |
| 5739 | ### Example |
| 5740 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5741 | <div><fiddle-embed name="7c9e6a399f898d68026c1f0865e6f73e"><div><a href='undocumented#Text'>Text</a> is added to <a href='SkPath_Reference#Path'>Path</a>, offset, and subtracted from <a href='SkPath_Reference#Path'>Path</a>, then added at |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5742 | the offset location. The result is rendered with one draw call. |
| 5743 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5744 | |
| 5745 | --- |
| 5746 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5747 | <a name='SkPaint_getPosTextPath'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5748 | ## getPosTextPath |
| 5749 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5750 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5751 | void <a href='#SkPaint_getPosTextPath'>getPosTextPath</a>(const void* text, size_t length, const <a href='SkPoint_Reference#SkPoint'>SkPoint</a> pos[], <a href='SkPath_Reference#SkPath'>SkPath</a>* path) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5752 | </pre> |
| 5753 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5754 | Returns the geometry as <a href='SkPath_Reference#Path'>Path</a> equivalent to the drawn <a href='#SkPaint_getPosTextPath_text'>text</a>. |
| 5755 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getPosTextPath_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5756 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5757 | All of the glyph paths are stored in <a href='#SkPaint_getPosTextPath_path'>path</a>. |
| 5758 | Uses <a href='#SkPaint_getPosTextPath_pos'>pos</a> array and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getPosTextPath_path'>path</a>. |
| 5759 | <a href='#SkPaint_getPosTextPath_pos'>pos</a> contains a position for each glyph. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5760 | |
| 5761 | ### Parameters |
| 5762 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5763 | <table> <tr> <td><a name='SkPaint_getPosTextPath_text'><code><strong>text</strong></code></a></td> |
| 5764 | <td>character codes or glyph indices</td> |
| 5765 | </tr> |
| 5766 | <tr> <td><a name='SkPaint_getPosTextPath_length'><code><strong>length</strong></code></a></td> |
| 5767 | <td>number of bytes of <a href='#SkPaint_getPosTextPath_text'>text</a></td> |
| 5768 | </tr> |
| 5769 | <tr> <td><a name='SkPaint_getPosTextPath_pos'><code><strong>pos</strong></code></a></td> |
| 5770 | <td>positions of each glyph</td> |
| 5771 | </tr> |
| 5772 | <tr> <td><a name='SkPaint_getPosTextPath_path'><code><strong>path</strong></code></a></td> |
| 5773 | <td>geometry of the <a href='undocumented#Glyph'>Glyphs</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5774 | </tr> |
| 5775 | </table> |
| 5776 | |
| 5777 | ### Example |
| 5778 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5779 | <div><fiddle-embed name="7f27c93472aa99a7542fb3493076f072"><div>Simplifies three <a href='undocumented#Glyph'>Glyphs</a> to eliminate overlaps, and strokes the result. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5780 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5781 | |
| 5782 | --- |
| 5783 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5784 | ## <a name='Text_Intercepts'>Text Intercepts</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 5785 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5786 | <a href='#Text_Intercepts'>Text Intercepts</a> describe the intersection of drawn text <a href='undocumented#Glyph'>Glyphs</a> with a pair |
| 5787 | of lines parallel to the text advance. <a href='#Text_Intercepts'>Text Intercepts</a> permits creating a |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 5788 | underline that skips <a href='undocumented#Descenders'>Descenders</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5789 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5790 | <a name='SkPaint_getTextIntercepts'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5791 | ## getTextIntercepts |
| 5792 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5793 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5794 | int <a href='#SkPaint_getTextIntercepts'>getTextIntercepts</a>(const void* text, size_t length, <a href='undocumented#SkScalar'>SkScalar</a> x, <a href='undocumented#SkScalar'>SkScalar</a> y, |
| 5795 | const <a href='undocumented#SkScalar'>SkScalar</a> bounds[2], <a href='undocumented#SkScalar'>SkScalar</a>* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5796 | </pre> |
| 5797 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5798 | Returns the number of <a href='#SkPaint_getTextIntercepts_intervals'>intervals</a> that intersect <a href='#SkPaint_getTextIntercepts_bounds'>bounds</a>. |
| 5799 | <a href='#SkPaint_getTextIntercepts_bounds'>bounds</a> describes a pair of lines parallel to the <a href='#SkPaint_getTextIntercepts_text'>text</a> advance. |
| 5800 | The return count is zero or a multiple of two, and is at most twice the number of <a href='undocumented#Glyph'>Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5801 | the string. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5802 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getTextIntercepts_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5803 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5804 | Uses <a href='#SkPaint_getTextIntercepts_x'>x</a>, <a href='#SkPaint_getTextIntercepts_y'>y</a>, and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getTextIntercepts_intervals'>intervals</a>. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5805 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5806 | Pass nullptr for <a href='#SkPaint_getTextIntercepts_intervals'>intervals</a> to determine the size of the interval array. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5807 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5808 | <a href='#SkPaint_getTextIntercepts_intervals'>intervals</a> are cached to improve performance for multiple calls. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5809 | |
| 5810 | ### Parameters |
| 5811 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5812 | <table> <tr> <td><a name='SkPaint_getTextIntercepts_text'><code><strong>text</strong></code></a></td> |
| 5813 | <td>character codes or glyph indices</td> |
| 5814 | </tr> |
| 5815 | <tr> <td><a name='SkPaint_getTextIntercepts_length'><code><strong>length</strong></code></a></td> |
| 5816 | <td>number of bytes of <a href='#SkPaint_getTextIntercepts_text'>text</a></td> |
| 5817 | </tr> |
| 5818 | <tr> <td><a name='SkPaint_getTextIntercepts_x'><code><strong>x</strong></code></a></td> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5819 | <td><a href='#SkPaint_getTextIntercepts_x'>x</a>-axis value of the origin of the <a href='#SkPaint_getTextIntercepts_text'>text</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5820 | </tr> |
| 5821 | <tr> <td><a name='SkPaint_getTextIntercepts_y'><code><strong>y</strong></code></a></td> |
Cary Clark | 5538c13 | 2018-06-14 12:28:14 -0400 | [diff] [blame] | 5822 | <td><a href='#SkPaint_getTextIntercepts_y'>y</a>-axis value of the origin of the <a href='#SkPaint_getTextIntercepts_text'>text</a></td> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5823 | </tr> |
| 5824 | <tr> <td><a name='SkPaint_getTextIntercepts_bounds'><code><strong>bounds</strong></code></a></td> |
| 5825 | <td>lower and upper line parallel to the advance</td> |
| 5826 | </tr> |
| 5827 | <tr> <td><a name='SkPaint_getTextIntercepts_intervals'><code><strong>intervals</strong></code></a></td> |
| 5828 | <td>returned intersections; may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5829 | </tr> |
| 5830 | </table> |
| 5831 | |
| 5832 | ### Return Value |
| 5833 | |
| 5834 | number of intersections; may be zero |
| 5835 | |
| 5836 | ### Example |
| 5837 | |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5838 | <div><fiddle-embed name="2a0b80ed20d193c688085b79deb5bdc9"><div>Underline uses intercepts to draw on either side of the glyph Descender. |
| 5839 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5840 | |
| 5841 | --- |
| 5842 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5843 | <a name='SkPaint_getPosTextIntercepts'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5844 | ## getPosTextIntercepts |
| 5845 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5846 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5847 | int <a href='#SkPaint_getPosTextIntercepts'>getPosTextIntercepts</a>(const void* text, size_t length, const <a href='SkPoint_Reference#SkPoint'>SkPoint</a> pos[], |
| 5848 | const <a href='undocumented#SkScalar'>SkScalar</a> bounds[2], <a href='undocumented#SkScalar'>SkScalar</a>* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5849 | </pre> |
| 5850 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5851 | Returns the number of <a href='#SkPaint_getPosTextIntercepts_intervals'>intervals</a> that intersect <a href='#SkPaint_getPosTextIntercepts_bounds'>bounds</a>. |
| 5852 | <a href='#SkPaint_getPosTextIntercepts_bounds'>bounds</a> describes a pair of lines parallel to the <a href='#SkPaint_getPosTextIntercepts_text'>text</a> advance. |
| 5853 | The return count is zero or a multiple of two, and is at most twice the number of <a href='undocumented#Glyph'>Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5854 | the string. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5855 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getPosTextIntercepts_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5856 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5857 | Uses <a href='#SkPaint_getPosTextIntercepts_pos'>pos</a> array and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getPosTextIntercepts_intervals'>intervals</a>. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5858 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5859 | Pass nullptr for <a href='#SkPaint_getPosTextIntercepts_intervals'>intervals</a> to determine the size of the interval array. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5860 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5861 | <a href='#SkPaint_getPosTextIntercepts_intervals'>intervals</a> are cached to improve performance for multiple calls. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5862 | |
| 5863 | ### Parameters |
| 5864 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5865 | <table> <tr> <td><a name='SkPaint_getPosTextIntercepts_text'><code><strong>text</strong></code></a></td> |
| 5866 | <td>character codes or glyph indices</td> |
| 5867 | </tr> |
| 5868 | <tr> <td><a name='SkPaint_getPosTextIntercepts_length'><code><strong>length</strong></code></a></td> |
| 5869 | <td>number of bytes of <a href='#SkPaint_getPosTextIntercepts_text'>text</a></td> |
| 5870 | </tr> |
| 5871 | <tr> <td><a name='SkPaint_getPosTextIntercepts_pos'><code><strong>pos</strong></code></a></td> |
| 5872 | <td>positions of each glyph</td> |
| 5873 | </tr> |
| 5874 | <tr> <td><a name='SkPaint_getPosTextIntercepts_bounds'><code><strong>bounds</strong></code></a></td> |
| 5875 | <td>lower and upper line parallel to the advance</td> |
| 5876 | </tr> |
| 5877 | <tr> <td><a name='SkPaint_getPosTextIntercepts_intervals'><code><strong>intervals</strong></code></a></td> |
| 5878 | <td>returned intersections; may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5879 | </tr> |
| 5880 | </table> |
| 5881 | |
| 5882 | ### Return Value |
| 5883 | |
Cary Clark | a523d2d | 2017-08-30 08:58:10 -0400 | [diff] [blame] | 5884 | number of intersections; may be zero |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5885 | |
| 5886 | ### Example |
| 5887 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5888 | <div><fiddle-embed name="98b2dfc552d0540a7c041fe7a2839bd7"><div><a href='undocumented#Text'>Text</a> intercepts draw on either side of, but not inside, <a href='undocumented#Glyph'>Glyphs</a> in a run. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5889 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5890 | |
| 5891 | --- |
| 5892 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5893 | <a name='SkPaint_getPosTextHIntercepts'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5894 | ## getPosTextHIntercepts |
| 5895 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5896 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5897 | int <a href='#SkPaint_getPosTextHIntercepts'>getPosTextHIntercepts</a>(const void* text, size_t length, const <a href='undocumented#SkScalar'>SkScalar</a> xpos[], <a href='undocumented#SkScalar'>SkScalar</a> constY, |
| 5898 | const <a href='undocumented#SkScalar'>SkScalar</a> bounds[2], <a href='undocumented#SkScalar'>SkScalar</a>* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5899 | </pre> |
| 5900 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5901 | Returns the number of <a href='#SkPaint_getPosTextHIntercepts_intervals'>intervals</a> that intersect <a href='#SkPaint_getPosTextHIntercepts_bounds'>bounds</a>. |
| 5902 | <a href='#SkPaint_getPosTextHIntercepts_bounds'>bounds</a> describes a pair of lines parallel to the <a href='#SkPaint_getPosTextHIntercepts_text'>text</a> advance. |
| 5903 | The return count is zero or a multiple of two, and is at most twice the number of <a href='undocumented#Glyph'>Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5904 | the string. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5905 | Uses <a href='#Text_Encoding'>Text Encoding</a> to decode <a href='#SkPaint_getPosTextHIntercepts_text'>text</a>, <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5906 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5907 | Uses <a href='#SkPaint_getPosTextHIntercepts_xpos'>xpos</a> array, <a href='#SkPaint_getPosTextHIntercepts_constY'>constY</a>, and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getPosTextHIntercepts_intervals'>intervals</a>. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5908 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5909 | Pass nullptr for <a href='#SkPaint_getPosTextHIntercepts_intervals'>intervals</a> to determine the size of the interval array. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5910 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5911 | <a href='#SkPaint_getPosTextHIntercepts_intervals'>intervals</a> are cached to improve performance for multiple calls. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5912 | |
| 5913 | ### Parameters |
| 5914 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5915 | <table> <tr> <td><a name='SkPaint_getPosTextHIntercepts_text'><code><strong>text</strong></code></a></td> |
| 5916 | <td>character codes or glyph indices</td> |
| 5917 | </tr> |
| 5918 | <tr> <td><a name='SkPaint_getPosTextHIntercepts_length'><code><strong>length</strong></code></a></td> |
| 5919 | <td>number of bytes of <a href='#SkPaint_getPosTextHIntercepts_text'>text</a></td> |
| 5920 | </tr> |
| 5921 | <tr> <td><a name='SkPaint_getPosTextHIntercepts_xpos'><code><strong>xpos</strong></code></a></td> |
| 5922 | <td>positions of each glyph in x</td> |
| 5923 | </tr> |
| 5924 | <tr> <td><a name='SkPaint_getPosTextHIntercepts_constY'><code><strong>constY</strong></code></a></td> |
| 5925 | <td>position of each glyph in y</td> |
| 5926 | </tr> |
| 5927 | <tr> <td><a name='SkPaint_getPosTextHIntercepts_bounds'><code><strong>bounds</strong></code></a></td> |
| 5928 | <td>lower and upper line parallel to the advance</td> |
| 5929 | </tr> |
| 5930 | <tr> <td><a name='SkPaint_getPosTextHIntercepts_intervals'><code><strong>intervals</strong></code></a></td> |
| 5931 | <td>returned intersections; may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5932 | </tr> |
| 5933 | </table> |
| 5934 | |
| 5935 | ### Return Value |
| 5936 | |
| 5937 | number of intersections; may be zero |
| 5938 | |
| 5939 | ### Example |
| 5940 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5941 | <div><fiddle-embed name="dc9851c43acc3716aca8c9a4d40d452d"><div><a href='undocumented#Text'>Text</a> intercepts do not take stroke thickness into consideration. |
Cary Clark | 1a8d762 | 2018-03-05 13:26:16 -0500 | [diff] [blame] | 5942 | </div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5943 | |
| 5944 | --- |
| 5945 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5946 | <a name='SkPaint_getTextBlobIntercepts'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5947 | ## getTextBlobIntercepts |
| 5948 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5949 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5950 | int <a href='#SkPaint_getTextBlobIntercepts'>getTextBlobIntercepts</a>(const <a href='undocumented#SkTextBlob'>SkTextBlob</a>* blob, const <a href='undocumented#SkScalar'>SkScalar</a> bounds[2], <a href='undocumented#SkScalar'>SkScalar</a>* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5951 | </pre> |
| 5952 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5953 | Returns the number of <a href='#SkPaint_getTextBlobIntercepts_intervals'>intervals</a> that intersect <a href='#SkPaint_getTextBlobIntercepts_bounds'>bounds</a>. |
| 5954 | <a href='#SkPaint_getTextBlobIntercepts_bounds'>bounds</a> describes a pair of lines parallel to the text advance. |
| 5955 | The return count is zero or a multiple of two, and is at most twice the number of <a href='undocumented#Glyph'>Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5956 | the string. |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5957 | Uses <a href='undocumented#Typeface'>Typeface</a> to get the glyph paths, |
| 5958 | and <a href='#Text_Size'>Text Size</a>, <a href='#Fake_Bold'>Fake Bold</a>, and <a href='undocumented#Path_Effect'>Path Effect</a> to scale and modify the glyph paths. |
| 5959 | Uses run array and <a href='#Text_Align'>Text Align</a> to position <a href='#SkPaint_getTextBlobIntercepts_intervals'>intervals</a>. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5960 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5961 | <a href='#Text_Encoding'>Text Encoding</a> must be set to <a href='#SkPaint_kGlyphID_TextEncoding'>SkPaint::kGlyphID TextEncoding</a>. |
Cary Clark | 3cd22cc | 2017-12-01 11:49:58 -0500 | [diff] [blame] | 5962 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5963 | Pass nullptr for <a href='#SkPaint_getTextBlobIntercepts_intervals'>intervals</a> to determine the size of the interval array. |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5964 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5965 | <a href='#SkPaint_getTextBlobIntercepts_intervals'>intervals</a> are cached to improve performance for multiple calls. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5966 | |
| 5967 | ### Parameters |
| 5968 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5969 | <table> <tr> <td><a name='SkPaint_getTextBlobIntercepts_blob'><code><strong>blob</strong></code></a></td> |
| 5970 | <td><a href='undocumented#Glyph'>Glyphs</a>, positions, and text paint attributes</td> |
| 5971 | </tr> |
| 5972 | <tr> <td><a name='SkPaint_getTextBlobIntercepts_bounds'><code><strong>bounds</strong></code></a></td> |
| 5973 | <td>lower and upper line parallel to the advance</td> |
| 5974 | </tr> |
| 5975 | <tr> <td><a name='SkPaint_getTextBlobIntercepts_intervals'><code><strong>intervals</strong></code></a></td> |
| 5976 | <td>returned intersections; may be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5977 | </tr> |
| 5978 | </table> |
| 5979 | |
| 5980 | ### Return Value |
| 5981 | |
| 5982 | number of intersections; may be zero |
| 5983 | |
| 5984 | ### Example |
| 5985 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 5986 | <div><fiddle-embed name="f2229dd5c8e76f9e12fafe59b61353c8"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5987 | |
| 5988 | --- |
| 5989 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5990 | <a name='SkPaint_nothingToDraw'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5991 | ## nothingToDraw |
| 5992 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5993 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 5994 | bool <a href='#SkPaint_nothingToDraw'>nothingToDraw</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5995 | </pre> |
| 5996 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 5997 | Returns true if <a href='#Paint'>Paint</a> prevents all drawing; |
| 5998 | otherwise, the <a href='#Paint'>Paint</a> may or may not allow drawing. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5999 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6000 | Returns true if, for example, <a href='undocumented#Blend_Mode'>Blend Mode</a> combined with <a href='SkColor_Reference#Alpha'>Color Alpha</a> computes a |
| 6001 | new <a href='SkColor_Reference#Alpha'>Alpha</a> of zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6002 | |
| 6003 | ### Return Value |
| 6004 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6005 | true if <a href='#Paint'>Paint</a> prevents all drawing |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6006 | |
| 6007 | ### Example |
| 6008 | |
skia-bookmaker | 525f9a9 | 2018-05-03 06:27:39 +0000 | [diff] [blame] | 6009 | <div><fiddle-embed name="2973b05bfbb6b4c29332c8ac4fcf3995"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6010 | |
| 6011 | #### Example Output |
| 6012 | |
| 6013 | ~~~~ |
| 6014 | initial nothing to draw: false |
| 6015 | blend dst nothing to draw: true |
| 6016 | blend src over nothing to draw: false |
| 6017 | alpha 0 nothing to draw: true |
| 6018 | ~~~~ |
| 6019 | |
| 6020 | </fiddle-embed></div> |
| 6021 | |
| 6022 | --- |
| 6023 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6024 | ## <a name='Fast_Bounds'>Fast Bounds</a> |
Cary Clark | 08895c4 | 2018-02-01 09:37:32 -0500 | [diff] [blame] | 6025 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6026 | To be made private. |
| 6027 | <a href='#Fast_Bounds'>Fast Bounds</a> functions conservatively outset a drawing bounds by additional area |
| 6028 | <a href='#Paint'>Paint</a> may draw to. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6029 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6030 | <a name='SkPaint_canComputeFastBounds'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6031 | ## canComputeFastBounds |
| 6032 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6033 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 6034 | bool <a href='#SkPaint_canComputeFastBounds'>canComputeFastBounds</a>() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6035 | </pre> |
| 6036 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6037 | ( to be made private) |
| 6038 | Returns true if <a href='#Paint'>Paint</a> does not include elements requiring extensive computation |
| 6039 | to compute <a href='undocumented#Device'>Device</a> bounds of drawn geometry. For instance, <a href='#Paint'>Paint</a> with <a href='undocumented#Path_Effect'>Path Effect</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6040 | always returns false. |
| 6041 | |
| 6042 | ### Return Value |
| 6043 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6044 | true if <a href='#Paint'>Paint</a> allows for fast computation of bounds |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6045 | |
| 6046 | --- |
| 6047 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6048 | <a name='SkPaint_computeFastBounds'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6049 | ## computeFastBounds |
| 6050 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6051 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 6052 | const <a href='SkRect_Reference#SkRect'>SkRect</a>& <a href='#SkPaint_computeFastBounds'>computeFastBounds</a>(const <a href='SkRect_Reference#SkRect'>SkRect</a>& orig, <a href='SkRect_Reference#SkRect'>SkRect</a>* storage) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6053 | </pre> |
| 6054 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6055 | ( to be made private) |
| 6056 | Only call this if <a href='#SkPaint_canComputeFastBounds'>canComputeFastBounds</a> returned true. This takes a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6057 | raw rectangle (the raw bounds of a shape), and adjusts it for stylistic |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6058 | effects in the paint (e.g. stroking). If needed, it uses the <a href='#SkPaint_computeFastBounds_storage'>storage</a> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 6059 | parameter. It returns the adjusted bounds that can then be used |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6060 | for <a href='SkCanvas_Reference#SkCanvas_quickReject'>SkCanvas::quickReject</a> tests. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6061 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6062 | The returned <a href='SkRect_Reference#Rect'>Rect</a> will either be <a href='#SkPaint_computeFastBounds_orig'>orig</a> or <a href='#SkPaint_computeFastBounds_storage'>storage</a>, thus the caller |
| 6063 | should not rely on <a href='#SkPaint_computeFastBounds_storage'>storage</a> being set to the result, but should always |
| 6064 | use the returned value. It is legal for <a href='#SkPaint_computeFastBounds_orig'>orig</a> and <a href='#SkPaint_computeFastBounds_storage'>storage</a> to be the same |
| 6065 | <a href='SkRect_Reference#Rect'>Rect</a>. |
| 6066 | |
| 6067 | For example: |
| 6068 | if (!path.isInverseFillType() && paint.<a href='#SkPaint_canComputeFastBounds'>canComputeFastBounds</a>) { |
| 6069 | <a href='SkRect_Reference#SkRect'>SkRect</a> <a href='#SkPaint_computeFastBounds_storage'>storage</a>; |
| 6070 | if (canvas->quickReject(paint.computeFastBounds(path.getBounds(), &<a href='#SkPaint_computeFastBounds_storage'>storage</a>))) { |
Cary Clark | 137b874 | 2018-05-30 09:21:49 -0400 | [diff] [blame] | 6071 | return; // do not draw the path |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6072 | } |
| 6073 | } |
| 6074 | // draw the path |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6075 | |
| 6076 | ### Parameters |
| 6077 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6078 | <table> <tr> <td><a name='SkPaint_computeFastBounds_orig'><code><strong>orig</strong></code></a></td> |
| 6079 | <td>geometry modified by <a href='#Paint'>Paint</a> when drawn</td> |
| 6080 | </tr> |
| 6081 | <tr> <td><a name='SkPaint_computeFastBounds_storage'><code><strong>storage</strong></code></a></td> |
| 6082 | <td>computed bounds of geometry; may not be nullptr</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6083 | </tr> |
| 6084 | </table> |
| 6085 | |
| 6086 | ### Return Value |
| 6087 | |
| 6088 | fast computed bounds |
| 6089 | |
| 6090 | --- |
| 6091 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6092 | <a name='SkPaint_computeFastStrokeBounds'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6093 | ## computeFastStrokeBounds |
| 6094 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6095 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 6096 | const <a href='SkRect_Reference#SkRect'>SkRect</a>& <a href='#SkPaint_computeFastStrokeBounds'>computeFastStrokeBounds</a>(const <a href='SkRect_Reference#SkRect'>SkRect</a>& orig, <a href='SkRect_Reference#SkRect'>SkRect</a>* storage) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6097 | </pre> |
| 6098 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6099 | ( to be made private) |
| 6100 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6101 | ### Parameters |
| 6102 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6103 | <table> <tr> <td><a name='SkPaint_computeFastStrokeBounds_orig'><code><strong>orig</strong></code></a></td> |
| 6104 | <td>geometry modified by <a href='#Paint'>Paint</a> when drawn</td> |
| 6105 | </tr> |
| 6106 | <tr> <td><a name='SkPaint_computeFastStrokeBounds_storage'><code><strong>storage</strong></code></a></td> |
| 6107 | <td>computed bounds of geometry</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6108 | </tr> |
| 6109 | </table> |
| 6110 | |
| 6111 | ### Return Value |
| 6112 | |
| 6113 | fast computed bounds |
| 6114 | |
| 6115 | --- |
| 6116 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6117 | <a name='SkPaint_doComputeFastBounds'></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6118 | ## doComputeFastBounds |
| 6119 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6120 | <pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0"> |
| 6121 | const <a href='SkRect_Reference#SkRect'>SkRect</a>& <a href='#SkPaint_doComputeFastBounds'>doComputeFastBounds</a>(const <a href='SkRect_Reference#SkRect'>SkRect</a>& orig, <a href='SkRect_Reference#SkRect'>SkRect</a>* storage, <a href='#SkPaint_Style'>Style</a> style) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6122 | </pre> |
| 6123 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6124 | ( to be made private) |
| 6125 | Computes the bounds, overriding the <a href='#Paint'>Paint</a> <a href='#SkPaint_Style'>Style</a>. This can be used to |
| 6126 | account for additional width required by stroking <a href='#SkPaint_doComputeFastBounds_orig'>orig</a>, without |
| 6127 | altering <a href='#SkPaint_Style'>Style</a> set to fill. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6128 | |
| 6129 | ### Parameters |
| 6130 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6131 | <table> <tr> <td><a name='SkPaint_doComputeFastBounds_orig'><code><strong>orig</strong></code></a></td> |
| 6132 | <td>geometry modified by <a href='#Paint'>Paint</a> when drawn</td> |
| 6133 | </tr> |
| 6134 | <tr> <td><a name='SkPaint_doComputeFastBounds_storage'><code><strong>storage</strong></code></a></td> |
| 6135 | <td>computed bounds of geometry</td> |
| 6136 | </tr> |
| 6137 | <tr> <td><a name='SkPaint_doComputeFastBounds_style'><code><strong>style</strong></code></a></td> |
| 6138 | <td>overrides <a href='#SkPaint_Style'>Style</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 6139 | </tr> |
| 6140 | </table> |
| 6141 | |
| 6142 | ### Return Value |
| 6143 | |
| 6144 | fast computed bounds |
| 6145 | |
| 6146 | --- |
| 6147 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6148 | ## <a name='Utility'>Utility</a> |
Cary Clark | 78de751 | 2018-02-07 07:27:09 -0500 | [diff] [blame] | 6149 | |
Cary Clark | 78de751 | 2018-02-07 07:27:09 -0500 | [diff] [blame] | 6150 | |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6151 | <table style='border-collapse: collapse; width: 62.5em'> |
| 6152 | <tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th> |
| 6153 | <th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr> |
| 6154 | <tr style='background-color: #f0f0f0; '> |
| 6155 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_containsText'>containsText</a></td> |
| 6156 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if all text corresponds to <a href='undocumented#Glyph'>Glyphs</a></td> |
| 6157 | </tr> |
| 6158 | <tr> |
| 6159 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_countText'>countText</a></td> |
| 6160 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns number of <a href='undocumented#Glyph'>Glyphs</a> in text</td> |
| 6161 | </tr> |
| 6162 | <tr style='background-color: #f0f0f0; '> |
| 6163 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_glyphsToUnichars'>glyphsToUnichars</a></td> |
| 6164 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>converts <a href='undocumented#Glyph'>Glyphs</a> into text</td> |
| 6165 | </tr> |
| 6166 | <tr> |
| 6167 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_nothingToDraw'>nothingToDraw</a></td> |
| 6168 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns true if <a href='#Paint'>Paint</a> prevents all drawing</td> |
| 6169 | </tr> |
| 6170 | <tr style='background-color: #f0f0f0; '> |
| 6171 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkPaint_textToGlyphs'>textToGlyphs</a></td> |
| 6172 | <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>converts text into glyph indices</td> |
| 6173 | </tr> |
Cary Clark | 682c58d | 2018-05-16 07:07:07 -0400 | [diff] [blame] | 6174 | </table> |