Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1 | SkPaint Reference |
| 2 | === |
| 3 | |
| 4 | # <a name="Paint"></a> Paint |
Cary Clark | e4aa371 | 2017-09-15 02:56:12 -0400 | [diff] [blame] | 5 | |
| 6 | # <a name="SkPaint"></a> Class SkPaint |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 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="#Clip">Canvas Clip</a> and <a href="#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 | 4c06f5e | 2017-08-04 12:48:24 -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 | 8cc16c7 | 2017-08-25 11:51:49 -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 | 7cfcbca | 2018-01-04 16:11:51 -0500 | [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 | 7cfcbca | 2018-01-04 16:11:51 -0500 | [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 | 8cc16c7 | 2017-08-25 11:51:49 -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 | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 25 | <a href="#Paint">Paint</a>, or ignore them altogether. For instance, some GPU implementations draw all |
| 26 | <a href="SkPath_Reference#Path">Path</a> geometries with Anti-aliasing, regardless of how <a href="#SkPaint_kAntiAlias_Flag">SkPaint::kAntiAlias Flag</a> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -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 | 8cc16c7 | 2017-08-25 11:51:49 -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 | 8cc16c7 | 2017-08-25 11:51:49 -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 | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 33 | # <a name="Overview"></a> Overview |
| 34 | |
| 35 | ## <a name="Subtopics"></a> Subtopics |
| 36 | |
| 37 | | topics | description | |
| 38 | | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 39 | | <a href="#Initializers">Initializers</a> | Constructors and initialization. | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 40 | | Destructor | <a href="#Paint">Paint</a> termination. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 41 | | <a href="#Management">Management</a> | <a href="#Paint">Paint</a> copying, moving, comparing. | |
| 42 | | <a href="#SkPaint_Hinting">Hinting</a> | <a href="undocumented#Glyph">Glyph</a> outline adjustment. | |
| 43 | | <a href="#SkPaint_Flags">Flags</a> | Attributes represented by single bits. | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 44 | | Anti-alias | Approximating coverage with transparency. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 45 | | <a href="#Dither">Dither</a> | Distributing color error. | |
| 46 | | <a href="#Device_Text">Device Text</a> | Increase precision of glyph position. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 47 | | <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> | Custom sized bitmap <a href="#Glyph">Glyphs</a>. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 48 | | <a href="#Automatic_Hinting">Automatic Hinting</a> | Always adjust glyph paths. | |
| 49 | | <a href="#Vertical_Text">Vertical Text</a> | Orient text from top to bottom. | |
| 50 | | <a href="#Fake_Bold">Fake Bold</a> | Approximate font styles. | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 51 | | <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> | <a href="undocumented#Glyph">Glyph</a> spacing affected by hinting. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 52 | | <a href="#Filter_Quality_Methods">Filter Quality Methods</a> | Get and set <a href="undocumented#Filter_Quality">Filter Quality</a>. | |
| 53 | | <a href="#Color_Methods">Color Methods</a> | Get and set <a href="undocumented#Color">Color</a>. | |
| 54 | | <a href="#SkPaint_Style">Style</a> | Geometry filling, stroking. | |
| 55 | | <a href="#Stroke_Width">Stroke Width</a> | Thickness perpendicular to geometry. | |
| 56 | | <a href="#Miter_Limit">Miter Limit</a> | Maximum length of stroked corners. | |
| 57 | | <a href="#Stroke_Cap">Stroke Cap</a> | Decorations at ends of open strokes. | |
| 58 | | <a href="#Stroke_Join">Stroke Join</a> | Decoration at corners of strokes. | |
| 59 | | <a href="#Fill_Path">Fill Path</a> | Make <a href="SkPath_Reference#Path">Path</a> from <a href="undocumented#Path_Effect">Path Effect</a>, stroking. | |
| 60 | | <a href="#Shader_Methods">Shader Methods</a> | Get and set <a href="undocumented#Shader">Shader</a>. | |
| 61 | | <a href="#Color_Filter_Methods">Color Filter Methods</a> | Get and set <a href="undocumented#Color_Filter">Color Filter</a>. | |
| 62 | | <a href="#Blend_Mode_Methods">Blend Mode Methods</a> | Get and set <a href="undocumented#Blend_Mode">Blend Mode</a>. | |
| 63 | | <a href="#Path_Effect_Methods">Path Effect Methods</a> | Get and set <a href="undocumented#Path_Effect">Path Effect</a>. | |
| 64 | | <a href="#Mask_Filter_Methods">Mask Filter Methods</a> | Get and set <a href="undocumented#Mask_Filter">Mask Filter</a>. | |
| 65 | | <a href="#Typeface_Methods">Typeface Methods</a> | Get and set <a href="undocumented#Typeface">Typeface</a>. | |
| 66 | | <a href="#Rasterizer_Methods">Rasterizer Methods</a> | Get and set <a href="undocumented#Rasterizer">Rasterizer</a>. | |
| 67 | | <a href="#Image_Filter_Methods">Image Filter Methods</a> | Get and set <a href="undocumented#Image_Filter">Image Filter</a>. | |
| 68 | | <a href="#Draw_Looper_Methods">Draw Looper Methods</a> | Get and set <a href="undocumented#Draw_Looper">Draw Looper</a>. | |
| 69 | | <a href="#Text_Align">Text Align</a> | <a href="undocumented#Text">Text</a> placement relative to position. | |
| 70 | | <a href="#Text_Size">Text Size</a> | Overall height in points. | |
| 71 | | <a href="#Text_Scale_X">Text Scale X</a> | <a href="undocumented#Text">Text</a> horizontal scale. | |
| 72 | | <a href="#Text_Skew_X">Text Skew X</a> | <a href="undocumented#Text">Text</a> horizontal slant. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 73 | | <a href="#Text_Encoding">Text Encoding</a> | <a href="undocumented#Text">Text</a> encoded as characters or <a href="#Glyph">Glyphs</a>. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 74 | | <a href="#Font_Metrics">Font Metrics</a> | Common glyph dimensions. | |
| 75 | | <a href="#Measure_Text">Measure Text</a> | Width, height, bounds of text. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 76 | | <a href="#Text_Path">Text Path</a> | Geometry of <a href="#Glyph">Glyphs</a>. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 77 | | <a href="#Text_Intercepts">Text Intercepts</a> | Advanced underline, strike through. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 78 | | <a href="#Fast_Bounds">Fast Bounds</a> | Approximate area required by <a href="#Paint">Paint</a>. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 79 | |
| 80 | ## <a name="Constants"></a> Constants |
| 81 | |
| 82 | | constants | description | |
| 83 | | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 84 | | <a href="#SkPaint_Align">Align</a> | <a href="undocumented#Glyph">Glyph</a> locations relative to text position. | |
| 85 | | <a href="#SkPaint_Cap">Cap</a> | Start and end geometry on stroked shapes. | |
| 86 | | <a href="#SkPaint_Flags">Flags</a> | Values described by bits and masks. | |
| 87 | | <a href="#SkPaint_FontMetrics_FontMetricsFlags">FontMetrics::FontMetricsFlags</a> | Valid <a href="#Font_Metrics">Font Metrics</a>. | |
| 88 | | <a href="#SkPaint_Hinting">Hinting</a> | Level of glyph outline adjustment. | |
| 89 | | <a href="#SkPaint_Join">Join</a> | Corner geometry on stroked shapes. | |
| 90 | | <a href="#SkPaint_Style">Style</a> | Stroke, fill, or both. | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 91 | | <a href="#SkPaint_TextEncoding">TextEncoding</a> | Character or glyph encoded size. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 92 | |
| 93 | ## <a name="Structs"></a> Structs |
| 94 | |
| 95 | | struct | description | |
| 96 | | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 97 | | <a href="#SkPaint_FontMetrics">FontMetrics</a> | <a href="undocumented#Typeface">Typeface</a> values. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 98 | |
| 99 | ## <a name="Constructors"></a> Constructors |
| 100 | |
| 101 | | | description | |
| 102 | | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 103 | | <a href="#SkPaint_empty_constructor">SkPaint()</a> | Constructs with default values. | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 104 | | <a href="#SkPaint_copy_const_SkPaint">SkPaint(const SkPaint& paint)</a> | Makes a shallow copy. | |
| 105 | | <a href="#SkPaint_move_SkPaint">SkPaint(SkPaint&& paint)</a> | Moves paint without copying it. | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 106 | | | Decreases <a href="undocumented#Reference_Count">Reference Count</a> of owned objects. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 107 | |
| 108 | ## <a name="Operators"></a> Operators |
| 109 | |
| 110 | | operator | description | |
| 111 | | --- | --- | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 112 | | <a href="#SkPaint_copy_operator">operator=(const SkPaint& paint)</a> | Makes a shallow copy. | |
| 113 | | <a href="#SkPaint_move_operator">operator=(SkPaint&& paint)</a> | Moves paint without copying it. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 114 | | <a href="#SkPaint_equal_operator">operator==(const SkPaint& a, const SkPaint& b)</a> | Compares paints for equality. | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 115 | | <a href="#SkPaint_notequal_operator">operator!=(const SkPaint& a, const SkPaint& b)</a> | Compares paints for inequality. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 116 | |
| 117 | ## <a name="Member_Functions"></a> Member Functions |
| 118 | |
| 119 | | function | description | |
| 120 | | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 121 | | <a href="#SkPaint_breakText">breakText</a> | Returns text that fits in a width. | |
| 122 | | <a href="#SkPaint_canComputeFastBounds">canComputeFastBounds</a> | Returns true if settings allow for fast bounds computation. | |
| 123 | | <a href="#SkPaint_computeFastBounds">computeFastBounds</a> | Returns fill bounds for quick reject tests. | |
| 124 | | <a href="#SkPaint_computeFastStrokeBounds">computeFastStrokeBounds</a> | Returns stroke bounds for quick reject tests. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 125 | | <a href="#SkPaint_containsText">containsText</a> | Returns if all text corresponds to <a href="#Glyph">Glyphs</a>. | |
| 126 | | <a href="#SkPaint_countText">countText</a> | Returns number of <a href="#Glyph">Glyphs</a> in text. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 127 | | <a href="#SkPaint_doComputeFastBounds">doComputeFastBounds</a> | Returns bounds for quick reject tests. | |
| 128 | | <a href="#SkPaint_flatten">flatten</a> | Serializes into a buffer. | |
| 129 | | <a href="#SkPaint_getAlpha">getAlpha</a> | Returns <a href="#Alpha">Color Alpha</a>, color opacity. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 130 | | <a href="#SkPaint_getBlendMode">getBlendMode</a> | Returns <a href="undocumented#Blend_Mode">Blend Mode</a>, how colors combine with <a href="undocumented#Device">Device</a>. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 131 | | <a href="#SkPaint_getColor">getColor</a> | Returns <a href="#Alpha">Color Alpha</a> and <a href="#RGB">Color RGB</a>, one drawing color. | |
| 132 | | <a href="#SkPaint_getColorFilter">getColorFilter</a> | Returns <a href="undocumented#Color_Filter">Color Filter</a>, how colors are altered. | |
| 133 | | <a href="#SkPaint_getDrawLooper">getDrawLooper</a> | Returns <a href="undocumented#Draw_Looper">Draw Looper</a>, multiple layers. | |
| 134 | | <a href="#SkPaint_getFillPath">getFillPath</a> | Returns fill path equivalent to stroke. | |
| 135 | | <a href="#SkPaint_getFilterQuality">getFilterQuality</a> | Returns <a href="undocumented#Filter_Quality">Filter Quality</a>, image filtering level. | |
| 136 | | <a href="#SkPaint_getFlags">getFlags</a> | Returns <a href="#SkPaint_Flags">Flags</a> stored in a bit field. | |
| 137 | | <a href="#SkPaint_getFontBounds">getFontBounds</a> | Returns union all glyph bounds. | |
| 138 | | <a href="#SkPaint_getFontMetrics">getFontMetrics</a> | Returns <a href="undocumented#Typeface">Typeface</a> metrics scaled by text size. | |
| 139 | | <a href="#SkPaint_getFontSpacing">getFontSpacing</a> | Returns recommended spacing between lines. | |
| 140 | | <a href="#SkPaint_getHash">getHash</a> | Returns a shallow hash for equality checks. | |
| 141 | | <a href="#SkPaint_getHinting">getHinting</a> | Returns <a href="#SkPaint_Hinting">Hinting</a>, glyph outline adjustment level. | |
| 142 | | <a href="#SkPaint_getImageFilter">getImageFilter</a> | Returns <a href="undocumented#Image_Filter">Image Filter</a>, alter pixels; blur. | |
| 143 | | <a href="#SkPaint_getMaskFilter">getMaskFilter</a> | Returns <a href="undocumented#Mask_Filter">Mask Filter</a>, alterations to <a href="undocumented#Mask_Alpha">Mask Alpha</a>. | |
| 144 | | <a href="#SkPaint_getPathEffect">getPathEffect</a> | Returns <a href="undocumented#Path_Effect">Path Effect</a>, modifications to path geometry; dashing. | |
| 145 | | <a href="#SkPaint_getPosTextPath">getPosTextPath</a> | Returns <a href="SkPath_Reference#Path">Path</a> equivalent to positioned text. | |
| 146 | | <a href="#SkPaint_getPosTextIntercepts">getPosTextIntercepts</a> | Returns where lines intersect positioned text; underlines. | |
| 147 | | <a href="#SkPaint_getPosTextHIntercepts">getPosTextHIntercepts</a> | Returns where lines intersect horizontally positioned text; underlines. | |
| 148 | | <a href="#SkPaint_getRasterizer">getRasterizer</a> | Returns <a href="undocumented#Rasterizer">Rasterizer</a>, <a href="undocumented#Mask_Alpha">Mask Alpha</a> generation from <a href="SkPath_Reference#Path">Path</a>. | |
| 149 | | <a href="#SkPaint_getShader">getShader</a> | Returns <a href="undocumented#Shader">Shader</a>, multiple drawing colors; gradients. | |
| 150 | | <a href="#SkPaint_getStrokeCap">getStrokeCap</a> | Returns <a href="#SkPaint_Cap">Cap</a>, the area drawn at path ends. | |
| 151 | | <a href="#SkPaint_getStrokeJoin">getStrokeJoin</a> | Returns <a href="#SkPaint_Join">Join</a>, geometry on path corners. | |
| 152 | | <a href="#SkPaint_getStrokeMiter">getStrokeMiter</a> | Returns <a href="#Miter_Limit">Miter Limit</a>, angles with sharp corners. | |
| 153 | | <a href="#SkPaint_getStrokeWidth">getStrokeWidth</a> | Returns thickness of the stroke. | |
| 154 | | <a href="#SkPaint_getStyle">getStyle</a> | Returns <a href="#SkPaint_Style">Style</a>: stroke, fill, or both. | |
| 155 | | <a href="#SkPaint_getTextAlign">getTextAlign</a> | Returns <a href="#SkPaint_Align">Align</a>: left, center, or right. | |
| 156 | | <a href="#SkPaint_getTextBlobIntercepts">getTextBlobIntercepts</a> | Returns where lines intersect <a href="undocumented#Text_Blob">Text Blob</a>; underlines. | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 157 | | <a href="#SkPaint_getTextEncoding">getTextEncoding</a> | Returns character or glyph encoded size. b | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 158 | | <a href="#SkPaint_getTextIntercepts">getTextIntercepts</a> | Returns where lines intersect text; underlines. | |
| 159 | | <a href="#SkPaint_getTextPath">getTextPath</a> | Returns <a href="SkPath_Reference#Path">Path</a> equivalent to text. | |
| 160 | | <a href="#SkPaint_getTextScaleX">getTextScaleX</a> | Returns the text horizontal scale; condensed text. | |
| 161 | | <a href="#SkPaint_getTextSkewX">getTextSkewX</a> | Returns the text horizontal skew; oblique text. | |
| 162 | | <a href="#SkPaint_getTextSize">getTextSize</a> | Returns text size in points. | |
| 163 | | <a href="#SkPaint_getTextWidths">getTextWidths</a> | Returns advance and bounds for each glyph in text. | |
| 164 | | <a href="#SkPaint_getTypeface">getTypeface</a> | Returns <a href="undocumented#Typeface">Typeface</a>, font description. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 165 | | <a href="#SkPaint_glyphsToUnichars">glyphsToUnichars</a> | Converts <a href="#Glyph">Glyphs</a> into text. | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 166 | | <a href="#SkPaint_isAntiAlias">isAntiAlias</a> | Returns true if Anti-alias is set. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 167 | | <a href="#SkPaint_isAutohinted">isAutohinted</a> | Returns true if <a href="#Glyph">Glyphs</a> are always hinted. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 168 | | <a href="#SkPaint_isDevKernText">isDevKernText</a> | Returns true if <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> is set. | |
| 169 | | <a href="#SkPaint_isDither">isDither</a> | Returns true if <a href="#Dither">Dither</a> is set. | |
| 170 | | <a href="#SkPaint_isEmbeddedBitmapText">isEmbeddedBitmapText</a> | Returns true if <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> is set. | |
| 171 | | <a href="#SkPaint_isFakeBoldText">isFakeBoldText</a> | Returns true if <a href="#Fake_Bold">Fake Bold</a> is set. | |
| 172 | | <a href="#SkPaint_isLCDRenderText">isLCDRenderText</a> | Returns true if <a href="SkPaint_Reference#LCD_Text">LCD Text</a> is set. | |
| 173 | | <a href="#SkPaint_isSrcOver">isSrcOver</a> | Returns true if <a href="undocumented#Blend_Mode">Blend Mode</a> is <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a>. | |
| 174 | | <a href="#SkPaint_isSubpixelText">isSubpixelText</a> | Returns true if <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> is set. | |
| 175 | | <a href="#SkPaint_isVerticalText">isVerticalText</a> | Returns true if <a href="#Vertical_Text">Vertical Text</a> is set. | |
| 176 | | <a href="#SkPaint_measureText">measureText</a> | Returns advance width and bounds of text. | |
| 177 | | <a href="#SkPaint_nothingToDraw">nothingToDraw</a> | Returns true if <a href="#Paint">Paint</a> prevents all drawing. | |
| 178 | | <a href="#SkPaint_refColorFilter">refColorFilter</a> | References <a href="undocumented#Color_Filter">Color Filter</a>, how colors are altered. | |
| 179 | | <a href="#SkPaint_refDrawLooper">refDrawLooper</a> | References <a href="undocumented#Draw_Looper">Draw Looper</a>, multiple layers. | |
| 180 | | <a href="#SkPaint_refImageFilter">refImageFilter</a> | References <a href="undocumented#Image_Filter">Image Filter</a>, alter pixels; blur. | |
| 181 | | <a href="#SkPaint_refMaskFilter">refMaskFilter</a> | References <a href="undocumented#Mask_Filter">Mask Filter</a>, alterations to <a href="undocumented#Mask_Alpha">Mask Alpha</a>. | |
| 182 | | <a href="#SkPaint_refPathEffect">refPathEffect</a> | References <a href="undocumented#Path_Effect">Path Effect</a>, modifications to path geometry; dashing. | |
| 183 | | <a href="#SkPaint_refRasterizer">refRasterizer</a> | References <a href="undocumented#Rasterizer">Rasterizer</a>, mask generation from path. | |
| 184 | | <a href="#SkPaint_refShader">refShader</a> | References <a href="undocumented#Shader">Shader</a>, multiple drawing colors; gradients. | |
| 185 | | <a href="#SkPaint_refTypeface">refTypeface</a> | References <a href="undocumented#Typeface">Typeface</a>, font description. | |
| 186 | | <a href="#SkPaint_reset">reset</a> | Sets to default values. | |
| 187 | | <a href="#SkPaint_setAlpha">setAlpha</a> | Sets <a href="#Alpha">Color Alpha</a>, color opacity. | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 188 | | <a href="#SkPaint_setAntiAlias">setAntiAlias</a> | Sets or clears Anti-alias. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 189 | | <a href="#SkPaint_setARGB">setARGB</a> | Sets color by component. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 190 | | <a href="#SkPaint_setAutohinted">setAutohinted</a> | Sets <a href="#Glyph">Glyphs</a> to always be hinted. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 191 | | <a href="#SkPaint_setBlendMode">setBlendMode</a> | Sets <a href="undocumented#Blend_Mode">Blend Mode</a>, how colors combine with destination. | |
| 192 | | <a href="#SkPaint_setColor">setColor</a> | Sets <a href="#Alpha">Color Alpha</a> and <a href="#RGB">Color RGB</a>, one drawing color. | |
| 193 | | <a href="#SkPaint_setColorFilter">setColorFilter</a> | Sets <a href="undocumented#Color_Filter">Color Filter</a>, alters color. | |
| 194 | | <a href="#SkPaint_setDevKernText">setDevKernText</a> | Sets or clears <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a>. | |
| 195 | | <a href="#SkPaint_setDither">setDither</a> | Sets or clears <a href="#Dither">Dither</a>. | |
| 196 | | <a href="#SkPaint_setDrawLooper">setDrawLooper</a> | Sets <a href="undocumented#Draw_Looper">Draw Looper</a>, multiple layers. | |
| 197 | | <a href="#SkPaint_setEmbeddedBitmapText">setEmbeddedBitmapText</a> | Sets or clears <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a>. | |
| 198 | | <a href="#SkPaint_setFakeBoldText">setFakeBoldText</a> | Sets or clears <a href="#Fake_Bold">Fake Bold</a>. | |
| 199 | | <a href="#SkPaint_setFilterQuality">setFilterQuality</a> | Sets <a href="undocumented#Filter_Quality">Filter Quality</a>, the image filtering level. | |
| 200 | | <a href="#SkPaint_setFlags">setFlags</a> | Sets multiple <a href="#SkPaint_Flags">Flags</a> in a bit field. | |
| 201 | | <a href="#SkPaint_setHinting">setHinting</a> | Sets <a href="#SkPaint_Hinting">Hinting</a>, glyph outline adjustment level. | |
| 202 | | <a href="#SkPaint_setLCDRenderText">setLCDRenderText</a> | Sets or clears <a href="SkPaint_Reference#LCD_Text">LCD Text</a>. | |
| 203 | | <a href="#SkPaint_setMaskFilter">setMaskFilter</a> | Sets <a href="undocumented#Mask_Filter">Mask Filter</a>, alterations to <a href="undocumented#Mask_Alpha">Mask Alpha</a>. | |
| 204 | | <a href="#SkPaint_setPathEffect">setPathEffect</a> | Sets <a href="undocumented#Path_Effect">Path Effect</a>, modifications to path geometry; dashing. | |
| 205 | | <a href="#SkPaint_setRasterizer">setRasterizer</a> | Sets <a href="undocumented#Rasterizer">Rasterizer</a>, <a href="undocumented#Mask_Alpha">Mask Alpha</a> generation from <a href="SkPath_Reference#Path">Path</a>. | |
| 206 | | <a href="#SkPaint_setImageFilter">setImageFilter</a> | Sets <a href="undocumented#Image_Filter">Image Filter</a>, alter pixels; blur. | |
| 207 | | <a href="#SkPaint_setShader">setShader</a> | Sets <a href="undocumented#Shader">Shader</a>, multiple drawing colors; gradients. | |
| 208 | | <a href="#SkPaint_setStrokeCap">setStrokeCap</a> | Sets <a href="#SkPaint_Cap">Cap</a>, the area drawn at path ends. | |
| 209 | | <a href="#SkPaint_setStrokeJoin">setStrokeJoin</a> | Sets <a href="#SkPaint_Join">Join</a>, geometry on path corners. | |
| 210 | | <a href="#SkPaint_setStrokeMiter">setStrokeMiter</a> | Sets <a href="#Miter_Limit">Miter Limit</a>, angles with sharp corners. | |
| 211 | | <a href="#SkPaint_setStrokeWidth">setStrokeWidth</a> | Sets thickness of the stroke. | |
| 212 | | <a href="#SkPaint_setStyle">setStyle</a> | Sets <a href="#SkPaint_Style">Style</a>: stroke, fill, or both. | |
| 213 | | <a href="#SkPaint_setSubpixelText">setSubpixelText</a> | Sets or clears <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a>. | |
| 214 | | <a href="#SkPaint_setTextAlign">setTextAlign</a> | Sets <a href="#SkPaint_Align">Align</a>: left, center, or right. | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 215 | | <a href="#SkPaint_setTextEncoding">setTextEncoding</a> | Sets character or glyph encoded size. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 216 | | <a href="#SkPaint_setTextScaleX">setTextScaleX</a> | Sets the text horizontal scale; condensed text. | |
| 217 | | <a href="#SkPaint_setTextSkewX">setTextSkewX</a> | Sets the text horizontal skew; oblique text. | |
| 218 | | <a href="#SkPaint_setTextSize">setTextSize</a> | Sets text size in points. | |
| 219 | | <a href="#SkPaint_setTypeface">setTypeface</a> | Sets <a href="undocumented#Typeface">Typeface</a>, font description. | |
| 220 | | <a href="#SkPaint_setVerticalText">setVerticalText</a> | Sets or clears <a href="#Vertical_Text">Vertical Text</a>. | |
| 221 | | <a href="#SkPaint_textToGlyphs">textToGlyphs</a> | Converts text into glyph indices. | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 222 | | <a href="#SkPaint_toString">toString</a> | Converts <a href="#Paint">Paint</a> to machine readable form. | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 223 | | <a href="#SkPaint_unflatten">unflatten</a> | Populates from a serialized stream. | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 224 | |
| 225 | # <a name="Initializers"></a> Initializers |
| 226 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 227 | <a name="SkPaint_empty_constructor"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 228 | ## SkPaint |
| 229 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 230 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 231 | SkPaint() |
| 232 | </pre> |
| 233 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 234 | Constructs <a href="#Paint">Paint</a> with default values. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 235 | |
| 236 | | attribute | default value | |
| 237 | | --- | --- | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 238 | | Anti-alias | false | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 239 | | <a href="undocumented#Blend_Mode">Blend Mode</a> | <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a> | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 240 | | <a href="undocumented#Color">Color</a> | <a href="undocumented#SK_ColorBLACK">SK ColorBLACK</a> | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 241 | | <a href="#Alpha">Color Alpha</a> | 255 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 242 | | <a href="undocumented#Color_Filter">Color Filter</a> | nullptr | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 243 | | <a href="#Dither">Dither</a> | false | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 244 | | <a href="undocumented#Draw_Looper">Draw Looper</a> | nullptr | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 245 | | <a href="#Fake_Bold">Fake Bold</a> | false | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 246 | | <a href="undocumented#Filter_Quality">Filter Quality</a> | <a href="undocumented#SkFilterQuality">kNone SkFilterQuality</a> | |
| 247 | | <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> | false | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 248 | | <a href="#Automatic_Hinting">Automatic Hinting</a> | false | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 249 | | <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> | false | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 250 | | <a href="#SkPaint_Hinting">Hinting</a> | <a href="#SkPaint_kNormal_Hinting">kNormal Hinting</a> | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 251 | | <a href="undocumented#Image_Filter">Image Filter</a> | nullptr | |
| 252 | | <a href="SkPaint_Reference#LCD_Text">LCD Text</a> | false | |
| 253 | | <a href="SkPaint_Reference#Linear_Text">Linear Text</a> | false | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 254 | | <a href="#Miter_Limit">Miter Limit</a> | 4 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 255 | | <a href="undocumented#Mask_Filter">Mask Filter</a> | nullptr | |
| 256 | | <a href="undocumented#Path_Effect">Path Effect</a> | nullptr | |
| 257 | | <a href="undocumented#Rasterizer">Rasterizer</a> | nullptr | |
| 258 | | <a href="undocumented#Shader">Shader</a> | nullptr | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 259 | | <a href="#SkPaint_Style">Style</a> | <a href="#SkPaint_kFill_Style">kFill Style</a> | |
| 260 | | <a href="#Text_Align">Text Align</a> | <a href="#SkPaint_kLeft_Align">kLeft Align</a> | |
| 261 | | <a href="#Text_Encoding">Text Encoding</a> | <a href="#SkPaint_kUTF8_TextEncoding">kUTF8 TextEncoding</a> | |
| 262 | | <a href="#Text_Scale_X">Text Scale X</a> | 1 | |
| 263 | | <a href="#Text_Size">Text Size</a> | 12 | |
| 264 | | <a href="#Text_Skew_X">Text Skew X</a> | 0 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 265 | | <a href="undocumented#Typeface">Typeface</a> | nullptr | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 266 | | <a href="#Stroke_Cap">Stroke Cap</a> | <a href="#SkPaint_kButt_Cap">kButt Cap</a> | |
| 267 | | <a href="#Stroke_Join">Stroke Join</a> | <a href="#SkPaint_kMiter_Join">kMiter Join</a> | |
| 268 | | <a href="#Stroke_Width">Stroke Width</a> | 0 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 269 | | <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> | false | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 270 | | <a href="#Vertical_Text">Vertical Text</a> | false | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 271 | |
| 272 | 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] | 273 | 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] | 274 | build system. |
| 275 | |
| 276 | ### Return Value |
| 277 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 278 | default initialized <a href="#Paint">Paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 279 | |
| 280 | ### Example |
| 281 | |
| 282 | <div><fiddle-embed name="c4b2186d85c142a481298f7144295ffd"></fiddle-embed></div> |
| 283 | |
| 284 | --- |
| 285 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 286 | <a name="SkPaint_copy_const_SkPaint"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 287 | ## SkPaint |
| 288 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 289 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 290 | SkPaint(const SkPaint& paint) |
| 291 | </pre> |
| 292 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 293 | 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>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 294 | <a href="undocumented#Mask_Filter">Mask Filter</a>, <a href="undocumented#Color_Filter">Color Filter</a>, <a href="undocumented#Rasterizer">Rasterizer</a>, <a href="undocumented#Draw_Looper">Draw Looper</a>, and <a href="undocumented#Image_Filter">Image Filter</a> are shared |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 295 | 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] | 296 | their references by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 297 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 298 | 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>, <a href="undocumented#Rasterizer">Rasterizer</a>, |
| 299 | <a href="undocumented#Draw_Looper">Draw Looper</a>, and <a href="undocumented#Image_Filter">Image Filter</a> cannot be modified after they are created. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 300 | 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] | 301 | |
| 302 | ### Parameters |
| 303 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 304 | <table> <tr> <td><a name="SkPaint_copy_const_SkPaint_paint"> <code><strong>paint </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 305 | original to copy</td> |
| 306 | </tr> |
| 307 | </table> |
| 308 | |
| 309 | ### Return Value |
| 310 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 311 | shallow copy of <a href="#SkPaint_copy_const_SkPaint_paint">paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 312 | |
| 313 | ### Example |
| 314 | |
| 315 | <div><fiddle-embed name="b99971ad0ef243d617925289d963b62d"> |
| 316 | |
| 317 | #### Example Output |
| 318 | |
| 319 | ~~~~ |
| 320 | SK_ColorRED == paint1.getColor() |
| 321 | SK_ColorBLUE == paint2.getColor() |
| 322 | ~~~~ |
| 323 | |
| 324 | </fiddle-embed></div> |
| 325 | |
| 326 | --- |
| 327 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 328 | <a name="SkPaint_move_SkPaint"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 329 | ## SkPaint |
| 330 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 331 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 332 | SkPaint(SkPaint&& paint) |
| 333 | </pre> |
| 334 | |
Cary Clark | d0530ba | 2017-09-14 11:25:39 -0400 | [diff] [blame] | 335 | Implements a move constructor to avoid increasing the reference counts |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 336 | 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] | 337 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 338 | 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] | 339 | |
| 340 | ### Parameters |
| 341 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 342 | <table> <tr> <td><a name="SkPaint_move_SkPaint_paint"> <code><strong>paint </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 343 | original to move</td> |
| 344 | </tr> |
| 345 | </table> |
| 346 | |
| 347 | ### Return Value |
| 348 | |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 349 | content of <a href="#SkPaint_move_SkPaint_paint">paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 350 | |
| 351 | ### Example |
| 352 | |
| 353 | <div><fiddle-embed name="8ed1488a503cd5282b86a51614aa90b1"> |
| 354 | |
| 355 | #### Example Output |
| 356 | |
| 357 | ~~~~ |
| 358 | path effect unique: true |
| 359 | ~~~~ |
| 360 | |
| 361 | </fiddle-embed></div> |
| 362 | |
| 363 | --- |
| 364 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 365 | <a name="SkPaint_reset"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 366 | ## reset |
| 367 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 368 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 369 | void reset() |
| 370 | </pre> |
| 371 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 372 | Sets all <a href="#Paint">Paint</a> contents to their initial values. This is equivalent to replacing |
| 373 | <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] | 374 | |
| 375 | ### Example |
| 376 | |
| 377 | <div><fiddle-embed name="ef269937ade7e7353635121d9a64f9f7"> |
| 378 | |
| 379 | #### Example Output |
| 380 | |
| 381 | ~~~~ |
| 382 | paint1 == paint2 |
| 383 | ~~~~ |
| 384 | |
| 385 | </fiddle-embed></div> |
| 386 | |
| 387 | --- |
| 388 | |
| 389 | # <a name="Destructor"></a> Destructor |
| 390 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 391 | <a name="SkPaint_destructor"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 392 | ## ~SkPaint |
| 393 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 394 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 395 | ~SkPaint() |
| 396 | </pre> |
| 397 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 398 | 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>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 399 | <a href="undocumented#Mask_Filter">Mask Filter</a>, <a href="undocumented#Color_Filter">Color Filter</a>, <a href="undocumented#Rasterizer">Rasterizer</a>, <a href="undocumented#Draw_Looper">Draw Looper</a>, and <a href="undocumented#Image_Filter">Image Filter</a>. If the |
| 400 | 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] | 401 | |
| 402 | --- |
| 403 | |
| 404 | # <a name="Management"></a> Management |
| 405 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 406 | <a name="SkPaint_copy_operator"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 407 | ## operator= |
| 408 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 409 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 410 | SkPaint& operator=(const SkPaint& paint) |
| 411 | </pre> |
| 412 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 413 | 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>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 414 | <a href="undocumented#Mask_Filter">Mask Filter</a>, <a href="undocumented#Color_Filter">Color Filter</a>, <a href="undocumented#Rasterizer">Rasterizer</a>, <a href="undocumented#Draw_Looper">Draw Looper</a>, and <a href="undocumented#Image_Filter">Image Filter</a> are shared |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 415 | 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] | 416 | prior destination are decreased by one, and the referenced objects are deleted if the |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 417 | 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> |
| 418 | 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] | 419 | |
| 420 | ### Parameters |
| 421 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 422 | <table> <tr> <td><a name="SkPaint_copy_operator_paint"> <code><strong>paint </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 423 | original to copy</td> |
| 424 | </tr> |
| 425 | </table> |
| 426 | |
| 427 | ### Return Value |
| 428 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 429 | content of <a href="#SkPaint_copy_operator_paint">paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 430 | |
| 431 | ### Example |
| 432 | |
| 433 | <div><fiddle-embed name="b476a9088f80dece176ed577807d3992"> |
| 434 | |
| 435 | #### Example Output |
| 436 | |
| 437 | ~~~~ |
| 438 | SK_ColorRED == paint1.getColor() |
| 439 | SK_ColorRED == paint2.getColor() |
| 440 | ~~~~ |
| 441 | |
| 442 | </fiddle-embed></div> |
| 443 | |
| 444 | --- |
| 445 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 446 | <a name="SkPaint_move_operator"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 447 | ## operator= |
| 448 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 449 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 450 | SkPaint& operator=(SkPaint&& paint) |
| 451 | </pre> |
| 452 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 453 | Moves the <a href="#SkPaint_move_operator_paint">paint</a> to avoid increasing the reference counts |
| 454 | 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] | 455 | prior destination are decreased by one; those objects are deleted if the resulting count |
| 456 | is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 457 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 458 | 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] | 459 | |
| 460 | ### Parameters |
| 461 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 462 | <table> <tr> <td><a name="SkPaint_move_operator_paint"> <code><strong>paint </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 463 | original to move</td> |
| 464 | </tr> |
| 465 | </table> |
| 466 | |
| 467 | ### Return Value |
| 468 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 469 | content of <a href="#SkPaint_move_operator_paint">paint</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 470 | |
| 471 | ### Example |
| 472 | |
| 473 | <div><fiddle-embed name="9fb7459b097d713f5f1fe5675afe14f5"> |
| 474 | |
| 475 | #### Example Output |
| 476 | |
| 477 | ~~~~ |
| 478 | SK_ColorRED == paint2.getColor() |
| 479 | ~~~~ |
| 480 | |
| 481 | </fiddle-embed></div> |
| 482 | |
| 483 | --- |
| 484 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 485 | <a name="SkPaint_equal_operator"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 486 | ## operator== |
| 487 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 488 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 489 | bool operator==(const SkPaint& a, const SkPaint& b) |
| 490 | </pre> |
| 491 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 492 | 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 |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 493 | 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>, <a href="undocumented#Rasterizer">Rasterizer</a>, |
| 494 | <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] | 495 | |
| 496 | ### Parameters |
| 497 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 498 | <table> <tr> <td><a name="SkPaint_equal_operator_a"> <code><strong>a </strong></code> </a></td> <td> |
| 499 | <a href="#Paint">Paint</a> to compare</td> |
| 500 | </tr> <tr> <td><a name="SkPaint_equal_operator_b"> <code><strong>b </strong></code> </a></td> <td> |
| 501 | <a href="#Paint">Paint</a> to compare</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 502 | </tr> |
| 503 | </table> |
| 504 | |
| 505 | ### Return Value |
| 506 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 507 | true if <a href="#Paint">Paint</a> pair are equivalent |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 508 | |
| 509 | ### Example |
| 510 | |
| 511 | <div><fiddle-embed name="7481a948e34672720337a631830586dd"> |
| 512 | |
| 513 | #### Example Output |
| 514 | |
| 515 | ~~~~ |
| 516 | paint1 == paint2 |
| 517 | paint1 != paint2 |
| 518 | ~~~~ |
| 519 | |
| 520 | </fiddle-embed></div> |
| 521 | |
| 522 | --- |
| 523 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 524 | <a name="SkPaint_notequal_operator"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 525 | ## operator!= |
| 526 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 527 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 528 | bool operator!=(const SkPaint& a, const SkPaint& b) |
| 529 | </pre> |
| 530 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 531 | 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 |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 532 | 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>, <a href="undocumented#Rasterizer">Rasterizer</a>, |
| 533 | <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] | 534 | |
| 535 | ### Parameters |
| 536 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 537 | <table> <tr> <td><a name="SkPaint_notequal_operator_a"> <code><strong>a </strong></code> </a></td> <td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 538 | <a href="#Paint">Paint</a> to compare</td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 539 | </tr> <tr> <td><a name="SkPaint_notequal_operator_b"> <code><strong>b </strong></code> </a></td> <td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 540 | <a href="#Paint">Paint</a> to compare</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 541 | </tr> |
| 542 | </table> |
| 543 | |
| 544 | ### Return Value |
| 545 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 546 | true if <a href="#Paint">Paint</a> pair are not equivalent |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 547 | |
| 548 | ### Example |
| 549 | |
| 550 | <div><fiddle-embed name="b6c8484b1187f555b435ad5369833be4"> |
| 551 | |
| 552 | #### Example Output |
| 553 | |
| 554 | ~~~~ |
| 555 | paint1 == paint2 |
| 556 | paint1 == paint2 |
| 557 | ~~~~ |
| 558 | |
| 559 | </fiddle-embed></div> |
| 560 | |
| 561 | --- |
| 562 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 563 | <a name="SkPaint_getHash"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 564 | ## getHash |
| 565 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 566 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 567 | uint32_t getHash() const |
| 568 | </pre> |
| 569 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 570 | 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] | 571 | Identical hashes guarantee that the paints are |
| 572 | equivalent, but differing hashes do not guarantee that the paints have differing |
| 573 | contents. |
| 574 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 575 | 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] | 576 | their hashes are also equal. |
| 577 | |
| 578 | The hash returned is platform and implementation specific. |
| 579 | |
| 580 | ### Return Value |
| 581 | |
| 582 | a shallow hash |
| 583 | |
| 584 | ### Example |
| 585 | |
| 586 | <div><fiddle-embed name="7f7e1b701361912b344f90ae6b530393"> |
| 587 | |
| 588 | #### Example Output |
| 589 | |
| 590 | ~~~~ |
| 591 | paint1 == paint2 |
| 592 | paint1.getHash() == paint2.getHash() |
| 593 | ~~~~ |
| 594 | |
| 595 | </fiddle-embed></div> |
| 596 | |
| 597 | --- |
| 598 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 599 | <a name="SkPaint_flatten"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 600 | ## flatten |
| 601 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 602 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 603 | void flatten(SkWriteBuffer& buffer) const |
| 604 | </pre> |
| 605 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 606 | Serializes <a href="#Paint">Paint</a> into a <a href="#SkPaint_flatten_buffer">buffer</a>. A companion <a href="#SkPaint_unflatten">unflatten</a> call |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 607 | can reconstitute the paint at a later time. |
| 608 | |
| 609 | ### Parameters |
| 610 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 611 | <table> <tr> <td><a name="SkPaint_flatten_buffer"> <code><strong>buffer </strong></code> </a></td> <td> |
| 612 | <a href="undocumented#Write_Buffer">Write Buffer</a> receiving the flattened <a href="#Paint">Paint</a> data</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 613 | </tr> |
| 614 | </table> |
| 615 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 616 | --- |
| 617 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 618 | <a name="SkPaint_unflatten"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 619 | ## unflatten |
| 620 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 621 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 622 | void unflatten(SkReadBuffer& buffer) |
| 623 | </pre> |
| 624 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 625 | Populates <a href="#Paint">Paint</a>, typically from a serialized stream, created by calling |
| 626 | <a href="#SkPaint_flatten">flatten</a> at an earlier time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 627 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 628 | <a href="undocumented#SkReadBuffer">SkReadBuffer</a> class is not public, so <a href="#SkPaint_unflatten">unflatten</a> cannot be meaningfully called |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 629 | by the client. |
| 630 | |
| 631 | ### Parameters |
| 632 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 633 | <table> <tr> <td><a name="SkPaint_unflatten_buffer"> <code><strong>buffer </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 634 | serialized data describing <a href="#Paint">Paint</a> content</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 635 | </tr> |
| 636 | </table> |
| 637 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 638 | ### See Also |
| 639 | |
| 640 | <a href="undocumented#SkReadBuffer">SkReadBuffer</a> |
| 641 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 642 | --- |
| 643 | |
| 644 | # <a name="Hinting"></a> Hinting |
| 645 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 646 | ## <a name="SkPaint_Hinting"></a> Enum SkPaint::Hinting |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 647 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 648 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 649 | enum <a href="#Hinting">Hinting</a> { |
| 650 | <a href="#SkPaint_kNo_Hinting">kNo Hinting</a> = 0, |
| 651 | <a href="#SkPaint_kSlight_Hinting">kSlight Hinting</a> = 1, |
| 652 | <a href="#SkPaint_kNormal_Hinting">kNormal Hinting</a> = 2, |
| 653 | <a href="#SkPaint_kFull_Hinting">kFull Hinting</a> = 3, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 654 | };</pre> |
| 655 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 656 | <a href="#Hinting">Hinting</a> adjusts the glyph outlines so that the shape provides a uniform |
| 657 | look at a given point size on font engines that support it. <a href="#Hinting">Hinting</a> may have a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 658 | muted effect or no effect at all depending on the platform. |
| 659 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 660 | The four levels roughly control corresponding features on platforms that use FreeType |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 661 | as the <a href="#Engine">Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 662 | |
| 663 | ### Constants |
| 664 | |
| 665 | <table> |
| 666 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 667 | <td><a name="SkPaint_kNo_Hinting"> <code><strong>SkPaint::kNo_Hinting </strong></code> </a></td><td>0</td><td>Leaves glyph outlines unchanged from their native representation. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 668 | With FreeType, this is equivalent to the FT_LOAD_NO_HINTING |
| 669 | 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] | 670 | outline being loaded should not be fitted to the pixel grid but simply scaled |
| 671 | to 26.6 fractional pixels.</td> |
| 672 | </tr> |
| 673 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 674 | <td><a name="SkPaint_kSlight_Hinting"> <code><strong>SkPaint::kSlight_Hinting </strong></code> </a></td><td>1</td><td>Modifies glyph outlines minimally to improve constrast. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 675 | With FreeType, this is equivalent in spirit to the |
| 676 | 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] | 677 | lighter hinting algorithm for non-monochrome modes. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 678 | Generated <a href="#Glyph">Glyphs</a> may be fuzzy but better resemble their original shape.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 679 | </tr> |
| 680 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 681 | <td><a name="SkPaint_kNormal_Hinting"> <code><strong>SkPaint::kNormal_Hinting </strong></code> </a></td><td>2</td><td>Modifies glyph outlines to improve constrast. This is the default. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 682 | With FreeType, this supplies FT_LOAD_TARGET_NORMAL to FT_Load_Glyph, |
| 683 | choosing the default hinting algorithm, which is optimized for standard |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 684 | gray-level rendering.</td> |
| 685 | </tr> |
| 686 | <tr> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 687 | <td><a name="SkPaint_kFull_Hinting"> <code><strong>SkPaint::kFull_Hinting </strong></code> </a></td><td>3</td><td>Modifies glyph outlines for maxiumum constrast. With FreeType, this selects |
| 688 | FT_LOAD_TARGET_LCD or FT_LOAD_TARGET_LCD_V if <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> is set. |
| 689 | FT_LOAD_TARGET_LCD is a variant of FT_LOAD_TARGET_NORMAL optimized for |
| 690 | horizontally decimated LCD displays; FT_LOAD_TARGET_LCD_V is a |
| 691 | variant of FT_LOAD_TARGET_NORMAL optimized for vertically decimated LCD displays.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 692 | </tr> |
| 693 | </table> |
| 694 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 695 | On Windows with DirectWrite, <a href="#Hinting">Hinting</a> has no effect. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 696 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 697 | <a href="#Hinting">Hinting</a> defaults to <a href="#SkPaint_kNormal_Hinting">kNormal Hinting</a>. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 698 | 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] | 699 | |
| 700 | |
| 701 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 702 | <a name="SkPaint_getHinting"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 703 | ## getHinting |
| 704 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 705 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 706 | Hinting getHinting() const |
| 707 | </pre> |
| 708 | |
| 709 | Returns level of glyph outline adjustment. |
| 710 | |
| 711 | ### Return Value |
| 712 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 713 | 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] | 714 | |
| 715 | ### Example |
| 716 | |
| 717 | <div><fiddle-embed name="329e2e5a5919ac431e1c58878a5b99e0"> |
| 718 | |
| 719 | #### Example Output |
| 720 | |
| 721 | ~~~~ |
| 722 | SkPaint::kNormal_Hinting == paint.getHinting() |
| 723 | ~~~~ |
| 724 | |
| 725 | </fiddle-embed></div> |
| 726 | |
| 727 | --- |
| 728 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 729 | <a name="SkPaint_setHinting"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 730 | ## setHinting |
| 731 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 732 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 733 | void setHinting(Hinting hintingLevel) |
| 734 | </pre> |
| 735 | |
| 736 | Sets level of glyph outline adjustment. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 737 | 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] | 738 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 739 | | <a href="#Hinting">Hinting</a> | value | effect on generated glyph outlines | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 740 | | --- | --- | --- | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 741 | | <a href="#SkPaint_kNo_Hinting">kNo Hinting</a> | 0 | leaves glyph outlines unchanged from their native representation | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 742 | | <a href="#SkPaint_kSlight_Hinting">kSlight Hinting</a> | 1 | modifies glyph outlines minimally to improve contrast | |
| 743 | | <a href="#SkPaint_kNormal_Hinting">kNormal Hinting</a> | 2 | modifies glyph outlines to improve contrast | |
| 744 | | <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] | 745 | |
| 746 | ### Parameters |
| 747 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 748 | <table> <tr> <td><a name="SkPaint_setHinting_hintingLevel"> <code><strong>hintingLevel </strong></code> </a></td> <td> |
| 749 | 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] | 750 | </tr> |
| 751 | </table> |
| 752 | |
| 753 | ### Example |
| 754 | |
| 755 | <div><fiddle-embed name="78153fbd3f1000cb33b97bbe831ed34e"> |
| 756 | |
| 757 | #### Example Output |
| 758 | |
| 759 | ~~~~ |
| 760 | paint1 == paint2 |
| 761 | ~~~~ |
| 762 | |
| 763 | </fiddle-embed></div> |
| 764 | |
| 765 | --- |
| 766 | |
| 767 | # <a name="Flags"></a> Flags |
| 768 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 769 | ## <a name="SkPaint_Flags"></a> Enum SkPaint::Flags |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 770 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 771 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 772 | enum <a href="#Flags">Flags</a> { |
| 773 | <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> = 0x01, |
| 774 | <a href="#SkPaint_kDither_Flag">kDither Flag</a> = 0x04, |
| 775 | <a href="#SkPaint_kFakeBoldText_Flag">kFakeBoldText Flag</a> = 0x20, |
| 776 | <a href="#SkPaint_kLinearText_Flag">kLinearText Flag</a> = 0x40, |
| 777 | <a href="#SkPaint_kSubpixelText_Flag">kSubpixelText Flag</a> = 0x80, |
| 778 | <a href="#SkPaint_kDevKernText_Flag">kDevKernText Flag</a> = 0x100, |
| 779 | <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> = 0x200, |
| 780 | <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a> = 0x400, |
| 781 | <a href="#SkPaint_kAutoHinting_Flag">kAutoHinting Flag</a> = 0x800, |
| 782 | <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> = 0x1000, |
| 783 | <a href="#SkPaint_kGenA8FromLCD_Flag">kGenA8FromLCD Flag</a> = 0x2000, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 784 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 785 | <a href="#SkPaint_kAllFlags">kAllFlags</a> = 0xFFFF, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 786 | }; |
| 787 | </pre> |
| 788 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 789 | The bit values stored in <a href="#Flags">Flags</a>. |
| 790 | The default value for <a href="#Flags">Flags</a>, normally zero, can be changed at compile time |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 791 | with a custom definition of <a href="undocumented#SkPaintDefaults_Flags">SkPaintDefaults Flags</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 792 | All flags can be read and written explicitly; <a href="#Flags">Flags</a> allows manipulating |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 793 | multiple settings at once. |
| 794 | |
| 795 | ### Constants |
| 796 | |
| 797 | <table> |
| 798 | <tr> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 799 | <td><a name="SkPaint_kAntiAlias_Flag"> <code><strong>SkPaint::kAntiAlias_Flag </strong></code> </a></td><td>0x0001 </td><td>mask for setting Anti-alias</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 800 | </tr> |
| 801 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 802 | <td><a name="SkPaint_kDither_Flag"> <code><strong>SkPaint::kDither_Flag </strong></code> </a></td><td>0x0004</td><td>mask for setting <a href="#Dither">Dither</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 803 | </tr> |
| 804 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 805 | <td><a name="SkPaint_kFakeBoldText_Flag"> <code><strong>SkPaint::kFakeBoldText_Flag </strong></code> </a></td><td>0x0020</td><td>mask for setting <a href="#Fake_Bold">Fake Bold</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 806 | </tr> |
| 807 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 808 | <td><a name="SkPaint_kLinearText_Flag"> <code><strong>SkPaint::kLinearText_Flag </strong></code> </a></td><td>0x0040</td><td>mask for setting <a href="SkPaint_Reference#Linear_Text">Linear Text</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 809 | </tr> |
| 810 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 811 | <td><a name="SkPaint_kSubpixelText_Flag"> <code><strong>SkPaint::kSubpixelText_Flag </strong></code> </a></td><td>0x0080</td><td>mask for setting <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 812 | </tr> |
| 813 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 814 | <td><a name="SkPaint_kDevKernText_Flag"> <code><strong>SkPaint::kDevKernText_Flag </strong></code> </a></td><td>0x0100</td><td>mask for setting <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 815 | </tr> |
| 816 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 817 | <td><a name="SkPaint_kLCDRenderText_Flag"> <code><strong>SkPaint::kLCDRenderText_Flag </strong></code> </a></td><td>0x0200</td><td>mask for setting <a href="SkPaint_Reference#LCD_Text">LCD Text</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 818 | </tr> |
| 819 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 820 | <td><a name="SkPaint_kEmbeddedBitmapText_Flag"> <code><strong>SkPaint::kEmbeddedBitmapText_Flag </strong></code> </a></td><td>0x0400</td><td>mask for setting <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 821 | </tr> |
| 822 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 823 | <td><a name="SkPaint_kAutoHinting_Flag"> <code><strong>SkPaint::kAutoHinting_Flag </strong></code> </a></td><td>0x0800</td><td>mask for setting <a href="#Automatic_Hinting">Automatic Hinting</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 824 | </tr> |
| 825 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 826 | <td><a name="SkPaint_kVerticalText_Flag"> <code><strong>SkPaint::kVerticalText_Flag </strong></code> </a></td><td>0x1000</td><td>mask for setting <a href="#Vertical_Text">Vertical Text</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 827 | </tr> |
| 828 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 829 | <td><a name="SkPaint_kGenA8FromLCD_Flag"> <code><strong>SkPaint::kGenA8FromLCD_Flag </strong></code> </a></td><td>0x2000</td><td>not intended for public use</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 830 | </tr> |
| 831 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 832 | <td><a name="SkPaint_kAllFlags"> <code><strong>SkPaint::kAllFlags </strong></code> </a></td><td>0xFFFF</td><td>mask of all <a href="#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] | 833 | </tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 834 | <a href="#Flags">Flags</a> default to all flags clear, disabling the associated feature. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 835 | |
| 836 | </table> |
| 837 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 838 | ## <a name="SkPaint_ReserveFlags"></a> Enum SkPaint::ReserveFlags |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 839 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 840 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 841 | enum <a href="#SkPaint_ReserveFlags">ReserveFlags</a> { |
| 842 | <a href="#SkPaint_kUnderlineText_ReserveFlag">kUnderlineText ReserveFlag</a> = 0x08, |
| 843 | <a href="#SkPaint_kStrikeThruText_ReserveFlag">kStrikeThruText ReserveFlag</a> = 0x10, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 844 | };</pre> |
| 845 | |
| 846 | ### Constants |
| 847 | |
| 848 | <table> |
| 849 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 850 | <td><a name="SkPaint_kUnderlineText_ReserveFlag"> <code><strong>SkPaint::kUnderlineText_ReserveFlag </strong></code> </a></td><td>0x0008</td><td>mask for underline text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 851 | </tr> |
| 852 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 853 | <td><a name="SkPaint_kStrikeThruText_ReserveFlag"> <code><strong>SkPaint::kStrikeThruText_ReserveFlag </strong></code> </a></td><td>0x0010</td><td>mask for strike-thru text</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 854 | </tr> |
| 855 | </table> |
| 856 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 857 | ### See Also |
| 858 | |
| 859 | <a href="#Flags">Flags</a> <a href="#SkPaint_getFlags">getFlags</a> |
| 860 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 861 | |
| 862 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 863 | <a name="SkPaint_getFlags"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 864 | ## getFlags |
| 865 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 866 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 867 | uint32_t getFlags() const |
| 868 | </pre> |
| 869 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 870 | Returns paint settings described by <a href="#Flags">Flags</a>. Each setting uses one |
| 871 | bit, and can be tested with <a href="#Flags">Flags</a> members. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 872 | |
| 873 | ### Return Value |
| 874 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 875 | zero, one, or more bits described by <a href="#Flags">Flags</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 876 | |
| 877 | ### Example |
| 878 | |
| 879 | <div><fiddle-embed name="8a3f8c309533388b01aa66e1267f322d"> |
| 880 | |
| 881 | #### Example Output |
| 882 | |
| 883 | ~~~~ |
| 884 | (SkPaint::kAntiAlias_Flag & paint.getFlags()) != 0 |
| 885 | ~~~~ |
| 886 | |
| 887 | </fiddle-embed></div> |
| 888 | |
| 889 | --- |
| 890 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 891 | <a name="SkPaint_setFlags"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 892 | ## setFlags |
| 893 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 894 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 895 | void setFlags(uint32_t flags) |
| 896 | </pre> |
| 897 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 898 | Replaces <a href="#Flags">Flags</a> with <a href="#SkPaint_setFlags_flags">flags</a>, the union of the <a href="#Flags">Flags</a> members. |
| 899 | All <a href="#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] | 900 | |
| 901 | ### Parameters |
| 902 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 903 | <table> <tr> <td><a name="SkPaint_setFlags_flags"> <code><strong>flags </strong></code> </a></td> <td> |
| 904 | union of <a href="#Flags">Flags</a> for <a href="#Paint">Paint</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 905 | </tr> |
| 906 | </table> |
| 907 | |
| 908 | ### Example |
| 909 | |
| 910 | <div><fiddle-embed name="54baed3f6bc4b9c31ba664e27767fdc7"> |
| 911 | |
| 912 | #### Example Output |
| 913 | |
| 914 | ~~~~ |
| 915 | paint.isAntiAlias() |
| 916 | paint.isDither() |
| 917 | ~~~~ |
| 918 | |
| 919 | </fiddle-embed></div> |
| 920 | |
| 921 | --- |
| 922 | |
| 923 | # <a name="Anti-alias"></a> Anti-alias |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 924 | Anti-alias drawing approximates partial pixel coverage with transparency. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 925 | If <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> is clear, pixel centers contained by the shape edge are drawn opaque. |
| 926 | If <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> is set, pixels are drawn with <a href="#Alpha">Color Alpha</a> equal to their coverage. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 927 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 928 | The rule for <a href="#Alias">Aliased</a> pixels is inconsistent across platforms. A shape edge |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 929 | passing through the pixel center may, but is not required to, draw the pixel. |
| 930 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 931 | <a href="undocumented#Raster_Engine">Raster Engine</a> draws <a href="#Alias">Aliased</a> pixels whose centers are on or to the right of the start of an |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 932 | 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] | 933 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 934 | A platform may only support Anti-aliased drawing. Some GPU-backed platforms use |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 935 | <a href="undocumented#Supersampling">Supersampling</a> to Anti-alias all drawing, and have no mechanism to selectively |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 936 | <a href="undocumented#Alias">Alias</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 937 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 938 | The amount of coverage computed for Anti-aliased pixels also varies across platforms. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 939 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 940 | Anti-alias is disabled by default. |
| 941 | Anti-alias 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] | 942 | at compile time. |
| 943 | |
| 944 | ### Example |
| 945 | |
| 946 | <div><fiddle-embed name="a6575a49467ce8d28bb01cc7638fa04d"><div>A red line is drawn with transparency on the edges to make it look smoother. |
| 947 | A blue line draws only where the pixel centers are contained. |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 948 | The lines are drawn into <a href="SkBitmap_Reference#Bitmap">Bitmap</a>, then drawn magnified to make the |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 949 | <a href="#Alias">Aliasing</a> easier to see.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 950 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 951 | <a name="SkPaint_isAntiAlias"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 952 | ## isAntiAlias |
| 953 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 954 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 955 | bool isAntiAlias() const |
| 956 | </pre> |
| 957 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 958 | 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] | 959 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 960 | 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] | 961 | |
| 962 | ### Return Value |
| 963 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 964 | <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 965 | |
| 966 | ### Example |
| 967 | |
| 968 | <div><fiddle-embed name="d7d5f4f7da7acd5104a652f490c6f7b8"> |
| 969 | |
| 970 | #### Example Output |
| 971 | |
| 972 | ~~~~ |
| 973 | paint.isAntiAlias() == !!(paint.getFlags() & SkPaint::kAntiAlias_Flag) |
| 974 | paint.isAntiAlias() == !!(paint.getFlags() & SkPaint::kAntiAlias_Flag) |
| 975 | ~~~~ |
| 976 | |
| 977 | </fiddle-embed></div> |
| 978 | |
| 979 | --- |
| 980 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 981 | <a name="SkPaint_setAntiAlias"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 982 | ## setAntiAlias |
| 983 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 984 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 985 | void setAntiAlias(bool aa) |
| 986 | </pre> |
| 987 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 988 | 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] | 989 | partial transparency. |
| 990 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 991 | Sets <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> if <a href="#SkPaint_setAntiAlias_aa">aa</a> is true. |
| 992 | 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] | 993 | |
| 994 | ### Parameters |
| 995 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 996 | <table> <tr> <td><a name="SkPaint_setAntiAlias_aa"> <code><strong>aa </strong></code> </a></td> <td> |
| 997 | setting for <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 998 | </tr> |
| 999 | </table> |
| 1000 | |
| 1001 | ### Example |
| 1002 | |
| 1003 | <div><fiddle-embed name="c2ff148374d01cbef845b223e725905c"> |
| 1004 | |
| 1005 | #### Example Output |
| 1006 | |
| 1007 | ~~~~ |
| 1008 | paint1 == paint2 |
| 1009 | ~~~~ |
| 1010 | |
| 1011 | </fiddle-embed></div> |
| 1012 | |
| 1013 | --- |
| 1014 | |
| 1015 | # <a name="Dither"></a> Dither |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1016 | <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] | 1017 | This can help to smooth color transitions and reducing banding in gradients. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1018 | Dithering lessens visible banding from <a href="undocumented#SkColorType">kRGB 565 SkColorType</a> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1019 | and <a href="undocumented#SkColorType">kRGBA 8888 SkColorType</a> gradients, |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1020 | and improves rendering into a <a href="undocumented#SkColorType">kRGB 565 SkColorType</a> <a href="SkSurface_Reference#Surface">Surface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1021 | |
| 1022 | Dithering is always enabled for linear gradients drawing into |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1023 | <a href="undocumented#SkColorType">kRGB 565 SkColorType</a> <a href="SkSurface_Reference#Surface">Surface</a> and <a href="undocumented#SkColorType">kRGBA 8888 SkColorType</a> <a href="SkSurface_Reference#Surface">Surface</a>. |
| 1024 | <a href="#Dither">Dither</a> cannot be enabled for <a href="undocumented#SkColorType">kAlpha 8 SkColorType</a> <a href="SkSurface_Reference#Surface">Surface</a> and |
| 1025 | <a href="undocumented#SkColorType">kRGBA F16 SkColorType</a> <a href="SkSurface_Reference#Surface">Surface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1026 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1027 | <a href="#Dither">Dither</a> is disabled by default. |
| 1028 | <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] | 1029 | at compile time. |
| 1030 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1031 | Some platform implementations may ignore dithering. Setto 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] | 1032 | |
| 1033 | ### Example |
| 1034 | |
| 1035 | <div><fiddle-embed name="8b26507690b71462f44642b911890bbf"><div>Dithering in the bottom half more closely approximates the requested color by |
| 1036 | alternating nearby colors from pixel to pixel.</div></fiddle-embed></div> |
| 1037 | |
| 1038 | ### Example |
| 1039 | |
| 1040 | <div><fiddle-embed name="76d4d4a7931a48495e4d5f54e073be53"><div>Dithering introduces subtle adjustments to color to smooth gradients. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1041 | Drawing the gradient repeatedly with <a href="#SkBlendMode_kPlus">SkBlendMode::kPlus</a> exaggerates the |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1042 | dither, making it easier to see.</div></fiddle-embed></div> |
| 1043 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1044 | <a name="SkPaint_isDither"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1045 | ## isDither |
| 1046 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1047 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1048 | bool isDither() const |
| 1049 | </pre> |
| 1050 | |
| 1051 | If true, color error may be distributed to smooth color transition. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1052 | 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] | 1053 | |
| 1054 | ### Return Value |
| 1055 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1056 | <a href="#SkPaint_kDither_Flag">kDither Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1057 | |
| 1058 | ### Example |
| 1059 | |
| 1060 | <div><fiddle-embed name="f4ce93f6c5e7335436a985377fd980c0"> |
| 1061 | |
| 1062 | #### Example Output |
| 1063 | |
| 1064 | ~~~~ |
| 1065 | paint.isDither() == !!(paint.getFlags() & SkPaint::kDither_Flag) |
| 1066 | paint.isDither() == !!(paint.getFlags() & SkPaint::kDither_Flag) |
| 1067 | ~~~~ |
| 1068 | |
| 1069 | </fiddle-embed></div> |
| 1070 | |
| 1071 | --- |
| 1072 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1073 | <a name="SkPaint_setDither"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1074 | ## setDither |
| 1075 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1076 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1077 | void setDither(bool dither) |
| 1078 | </pre> |
| 1079 | |
| 1080 | Requests, but does not require, to distribute color error. |
| 1081 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1082 | Sets <a href="#SkPaint_kDither_Flag">kDither Flag</a> if <a href="#SkPaint_setDither_dither">dither</a> is true. |
| 1083 | 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] | 1084 | |
| 1085 | ### Parameters |
| 1086 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1087 | <table> <tr> <td><a name="SkPaint_setDither_dither"> <code><strong>dither </strong></code> </a></td> <td> |
| 1088 | setting for <a href="#SkPaint_kDither_Flag">kDither Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1089 | </tr> |
| 1090 | </table> |
| 1091 | |
| 1092 | ### Example |
| 1093 | |
| 1094 | <div><fiddle-embed name="69b7162e8324d9239dd02dd9ada2bdff"> |
| 1095 | |
| 1096 | #### Example Output |
| 1097 | |
| 1098 | ~~~~ |
| 1099 | paint1 == paint2 |
| 1100 | ~~~~ |
| 1101 | |
| 1102 | </fiddle-embed></div> |
| 1103 | |
| 1104 | ### See Also |
| 1105 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1106 | <a href="undocumented#SkColorType">kRGB 565 SkColorType</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1107 | |
| 1108 | --- |
| 1109 | |
| 1110 | ### See Also |
| 1111 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1112 | Gradient <a href="#RGB">Color RGB</a>-565 |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1113 | |
| 1114 | # <a name="Device_Text"></a> Device Text |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1115 | <a href="SkPaint_Reference#LCD_Text">LCD Text</a> and <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> increase the precision of glyph position. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1116 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1117 | When set, <a href="#SkPaint_Flags">Flags</a> <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> takes advantage of the organization of <a href="#RGB">Color RGB</a> stripes that |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1118 | create a color, and relies |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1119 | on the small size of the stripe and visual perception to make the color fringing imperceptible. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1120 | <a href="SkPaint_Reference#LCD_Text">LCD Text</a> can be enabled on devices that orient stripes horizontally or vertically, and that order |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1121 | the color components as <a href="#RGB">Color RGB</a> or <a href="#RBG">Color RBG</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1122 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1123 | <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] | 1124 | As the opaqueness |
| 1125 | of the color increases, the edge of the glyph appears to move towards the outside of the pixel. |
| 1126 | |
| 1127 | Either or both techniques can be enabled. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1128 | <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> and <a href="#SkPaint_kSubpixelText_Flag">kSubpixelText Flag</a> are clear by default. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1129 | <a href="SkPaint_Reference#LCD_Text">LCD Text</a> or <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> can be enabled by default by setting <a href="undocumented#SkPaintDefaults_Flags">SkPaintDefaults Flags</a> to |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1130 | <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] | 1131 | |
| 1132 | ### Example |
| 1133 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1134 | <div><fiddle-embed name="4606ae1be792d6bc46d496432f050ee9"><div>Four commas are drawn normally and with combinations of <a href="SkPaint_Reference#LCD_Text">LCD Text</a> and <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a>. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1135 | When <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> is disabled, the comma <a href="#Glyph">Glyphs</a> are identical, but not evenly spaced. |
| 1136 | When <a href="SkPaint_Reference#Subpixel_Text">Subpixel Text</a> is enabled, the comma <a href="#Glyph">Glyphs</a> are unique, but appear evenly spaced.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1137 | |
| 1138 | ## <a name="Linear_Text"></a> Linear Text |
| 1139 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1140 | <a href="SkPaint_Reference#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>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1141 | 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>. |
Cary Clark | d0530ba | 2017-09-14 11:25:39 -0400 | [diff] [blame] | 1142 | 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] | 1143 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1144 | <a name="SkPaint_isLinearText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1145 | ## isLinearText |
| 1146 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1147 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1148 | bool isLinearText() const |
| 1149 | </pre> |
| 1150 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1151 | 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] | 1152 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1153 | 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] | 1154 | |
| 1155 | ### Return Value |
| 1156 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1157 | <a href="#SkPaint_kLinearText_Flag">kLinearText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1158 | |
| 1159 | ### Example |
| 1160 | |
| 1161 | <div><fiddle-embed name="2890ad644f980637837e6fcb386fb462"></fiddle-embed></div> |
| 1162 | |
| 1163 | ### See Also |
| 1164 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1165 | <a href="#SkPaint_setLinearText">setLinearText</a> <a href="#SkPaint_Hinting">Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1166 | |
| 1167 | --- |
| 1168 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1169 | <a name="SkPaint_setLinearText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1170 | ## setLinearText |
| 1171 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1172 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1173 | void setLinearText(bool linearText) |
| 1174 | </pre> |
| 1175 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1176 | If true, text is converted to <a href="SkPath_Reference#Path">Path</a> before drawing and measuring. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1177 | By default, <a href="#SkPaint_kLinearText_Flag">kLinearText Flag</a> is clear. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1178 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1179 | Sets <a href="#SkPaint_kLinearText_Flag">kLinearText Flag</a> if <a href="#SkPaint_setLinearText_linearText">linearText</a> is true. |
| 1180 | 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] | 1181 | |
| 1182 | ### Parameters |
| 1183 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1184 | <table> <tr> <td><a name="SkPaint_setLinearText_linearText"> <code><strong>linearText </strong></code> </a></td> <td> |
| 1185 | setting for <a href="#SkPaint_kLinearText_Flag">kLinearText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1186 | </tr> |
| 1187 | </table> |
| 1188 | |
| 1189 | ### Example |
| 1190 | |
| 1191 | <div><fiddle-embed name="c93bb912f3bddfb4d96d3ad70ada552b"></fiddle-embed></div> |
| 1192 | |
| 1193 | ### See Also |
| 1194 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1195 | <a href="#SkPaint_isLinearText">isLinearText</a> <a href="#SkPaint_Hinting">Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1196 | |
| 1197 | --- |
| 1198 | |
| 1199 | ## <a name="Subpixel_Text"></a> Subpixel Text |
| 1200 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1201 | <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] | 1202 | As the opaqueness |
| 1203 | of the color increases, the edge of the glyph appears to move towards the outside of the pixel. |
| 1204 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1205 | <a name="SkPaint_isSubpixelText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1206 | ## isSubpixelText |
| 1207 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1208 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1209 | bool isSubpixelText() const |
| 1210 | </pre> |
| 1211 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1212 | If true, <a href="#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] | 1213 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1214 | 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] | 1215 | |
| 1216 | ### Return Value |
| 1217 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1218 | <a href="#SkPaint_kSubpixelText_Flag">kSubpixelText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1219 | |
| 1220 | ### Example |
| 1221 | |
| 1222 | <div><fiddle-embed name="abe9afc0932e2199324ae6cbb396e67c"> |
| 1223 | |
| 1224 | #### Example Output |
| 1225 | |
| 1226 | ~~~~ |
| 1227 | paint.isSubpixelText() == !!(paint.getFlags() & SkPaint::kSubpixelText_Flag) |
| 1228 | paint.isSubpixelText() == !!(paint.getFlags() & SkPaint::kSubpixelText_Flag) |
| 1229 | ~~~~ |
| 1230 | |
| 1231 | </fiddle-embed></div> |
| 1232 | |
| 1233 | --- |
| 1234 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1235 | <a name="SkPaint_setSubpixelText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1236 | ## setSubpixelText |
| 1237 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1238 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1239 | void setSubpixelText(bool subpixelText) |
| 1240 | </pre> |
| 1241 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1242 | Requests, but does not require, that <a href="#Glyph">Glyphs</a> respect sub-pixel positioning. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1243 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1244 | Sets <a href="#SkPaint_kSubpixelText_Flag">kSubpixelText Flag</a> if <a href="#SkPaint_setSubpixelText_subpixelText">subpixelText</a> is true. |
| 1245 | 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] | 1246 | |
| 1247 | ### Parameters |
| 1248 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1249 | <table> <tr> <td><a name="SkPaint_setSubpixelText_subpixelText"> <code><strong>subpixelText </strong></code> </a></td> <td> |
| 1250 | setting for <a href="#SkPaint_kSubpixelText_Flag">kSubpixelText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1251 | </tr> |
| 1252 | </table> |
| 1253 | |
| 1254 | ### Example |
| 1255 | |
| 1256 | <div><fiddle-embed name="a77bbc1a4e3be9a8ab0f842f877c5ee4"> |
| 1257 | |
| 1258 | #### Example Output |
| 1259 | |
| 1260 | ~~~~ |
| 1261 | paint1 == paint2 |
| 1262 | ~~~~ |
| 1263 | |
| 1264 | </fiddle-embed></div> |
| 1265 | |
| 1266 | --- |
| 1267 | |
| 1268 | ## <a name="LCD_Text"></a> LCD Text |
| 1269 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1270 | When set, <a href="#SkPaint_Flags">Flags</a> <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> takes advantage of the organization of <a href="#RGB">Color RGB</a> stripes that |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1271 | create a color, and relies |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1272 | on the small size of the stripe and visual perception to make the color fringing imperceptible. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1273 | <a href="SkPaint_Reference#LCD_Text">LCD Text</a> can be enabled on devices that orient stripes horizontally or vertically, and that order |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1274 | the color components as <a href="#RGB">Color RGB</a> or <a href="#RBG">Color RBG</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1275 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1276 | <a name="SkPaint_isLCDRenderText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1277 | ## isLCDRenderText |
| 1278 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1279 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1280 | bool isLCDRenderText() const |
| 1281 | </pre> |
| 1282 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1283 | If true, <a href="#Glyph">Glyphs</a> may use LCD striping to improve glyph edges. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1284 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1285 | 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] | 1286 | |
| 1287 | ### Return Value |
| 1288 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1289 | <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1290 | |
| 1291 | ### Example |
| 1292 | |
| 1293 | <div><fiddle-embed name="68e1fd95dd2fd06a333899d2bd2396b9"> |
| 1294 | |
| 1295 | #### Example Output |
| 1296 | |
| 1297 | ~~~~ |
| 1298 | paint.isLCDRenderText() == !!(paint.getFlags() & SkPaint::kLCDRenderText_Flag) |
| 1299 | paint.isLCDRenderText() == !!(paint.getFlags() & SkPaint::kLCDRenderText_Flag) |
| 1300 | ~~~~ |
| 1301 | |
| 1302 | </fiddle-embed></div> |
| 1303 | |
| 1304 | --- |
| 1305 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1306 | <a name="SkPaint_setLCDRenderText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1307 | ## setLCDRenderText |
| 1308 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1309 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1310 | void setLCDRenderText(bool lcdText) |
| 1311 | </pre> |
| 1312 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1313 | Requests, but does not require, that <a href="#Glyph">Glyphs</a> use LCD striping for glyph edges. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1314 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1315 | Sets <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a> if <a href="#SkPaint_setLCDRenderText_lcdText">lcdText</a> is true. |
| 1316 | 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] | 1317 | |
| 1318 | ### Parameters |
| 1319 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1320 | <table> <tr> <td><a name="SkPaint_setLCDRenderText_lcdText"> <code><strong>lcdText </strong></code> </a></td> <td> |
| 1321 | setting for <a href="#SkPaint_kLCDRenderText_Flag">kLCDRenderText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1322 | </tr> |
| 1323 | </table> |
| 1324 | |
| 1325 | ### Example |
| 1326 | |
| 1327 | <div><fiddle-embed name="50dedf8450159571a3edaf4f0050defe"> |
| 1328 | |
| 1329 | #### Example Output |
| 1330 | |
| 1331 | ~~~~ |
| 1332 | paint1 == paint2 |
| 1333 | ~~~~ |
| 1334 | |
| 1335 | </fiddle-embed></div> |
| 1336 | |
| 1337 | --- |
| 1338 | |
| 1339 | # <a name="Font_Embedded_Bitmaps"></a> Font Embedded Bitmaps |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1340 | <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> allows selecting custom sized bitmap <a href="#Glyph">Glyphs</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1341 | <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] | 1342 | in a font if the platform supports this option. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1343 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1344 | FreeType selects the bitmap glyph if available when <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a> is set, and selects |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1345 | 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] | 1346 | Windows may select the bitmap glyph but is not required to do so. |
| 1347 | <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] | 1348 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1349 | <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> is disabled by default. |
| 1350 | <a href="SkPaint_Reference#Font_Embedded_Bitmaps">Font Embedded Bitmaps</a> can be enabled by default by setting <a href="undocumented#SkPaintDefaults_Flags">SkPaintDefaults Flags</a> to |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1351 | <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a> at compile time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1352 | |
| 1353 | ### Example |
| 1354 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1355 | <pre style="padding: 1em 1em 1em 1em; font-size: 13px width: 62.5em; background-color: #f0f0f0"> |
| 1356 | void draw(SkCanvas* canvas) {<div>The "hintgasp" TrueType font in the Skia resources/fonts directory |
| 1357 | includes an embedded bitmap Glyph at odd font sizes. This example works |
| 1358 | on platforms that use FreeType as their Font_Engine. |
| 1359 | Windows may, but is not required to, return a bitmap glyph if |
| 1360 | kEmbeddedBitmapText_Flag is set.</div>SkBitmap bitmap; |
| 1361 | bitmap.allocN32Pixels(30, 15); |
| 1362 | bitmap.eraseColor(0); |
| 1363 | SkCanvas offscreen(bitmap); |
| 1364 | SkPaint paint; |
| 1365 | paint.setAntiAlias(true); |
| 1366 | paint.setTextSize(13); |
Hal Canary | 53e5e7d | 2017-12-08 14:25:14 -0500 | [diff] [blame] | 1367 | paint.setTypeface(MakeResourceAsTypeface("fonts/hintgasp.ttf")); |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1368 | for (bool embedded : { false, true}) { |
| 1369 | paint.setEmbeddedBitmapText(embedded); |
| 1370 | offscreen.drawString("A", embedded ? 5 : 15, 15, paint); |
| 1371 | } |
| 1372 | canvas->drawBitmap(bitmap, 0, 0); |
| 1373 | canvas->scale(10, 10); |
| 1374 | canvas->drawBitmap(bitmap, -2, 1); |
| 1375 | } |
| 1376 | </pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1377 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1378 | <a name="SkPaint_isEmbeddedBitmapText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1379 | ## isEmbeddedBitmapText |
| 1380 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1381 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1382 | bool isEmbeddedBitmapText() const |
| 1383 | </pre> |
| 1384 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1385 | If true, <a href="#Engine">Font Engine</a> may return <a href="#Glyph">Glyphs</a> from font bitmaps instead of from outlines. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1386 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1387 | 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] | 1388 | |
| 1389 | ### Return Value |
| 1390 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1391 | <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1392 | |
| 1393 | ### Example |
| 1394 | |
| 1395 | <div><fiddle-embed name="eba10b27b790e87183ae451b3fc5c4b1"> |
| 1396 | |
| 1397 | #### Example Output |
| 1398 | |
| 1399 | ~~~~ |
| 1400 | paint.isEmbeddedBitmapText() == !!(paint.getFlags() & SkPaint::kEmbeddedBitmapText_Flag) |
| 1401 | paint.isEmbeddedBitmapText() == !!(paint.getFlags() & SkPaint::kEmbeddedBitmapText_Flag) |
| 1402 | ~~~~ |
| 1403 | |
| 1404 | </fiddle-embed></div> |
| 1405 | |
| 1406 | --- |
| 1407 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1408 | <a name="SkPaint_setEmbeddedBitmapText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1409 | ## setEmbeddedBitmapText |
| 1410 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1411 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1412 | void setEmbeddedBitmapText(bool useEmbeddedBitmapText) |
| 1413 | </pre> |
| 1414 | |
| 1415 | Requests, but does not require, to use bitmaps in fonts instead of outlines. |
| 1416 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1417 | Sets <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a> if <a href="#SkPaint_setEmbeddedBitmapText_useEmbeddedBitmapText">useEmbeddedBitmapText</a> is true. |
| 1418 | 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] | 1419 | |
| 1420 | ### Parameters |
| 1421 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1422 | <table> <tr> <td><a name="SkPaint_setEmbeddedBitmapText_useEmbeddedBitmapText"> <code><strong>useEmbeddedBitmapText </strong></code> </a></td> <td> |
| 1423 | setting for <a href="#SkPaint_kEmbeddedBitmapText_Flag">kEmbeddedBitmapText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1424 | </tr> |
| 1425 | </table> |
| 1426 | |
| 1427 | ### Example |
| 1428 | |
| 1429 | <div><fiddle-embed name="246dffdd93a484ba4ad7ecf71198a5d4"> |
| 1430 | |
| 1431 | #### Example Output |
| 1432 | |
| 1433 | ~~~~ |
| 1434 | paint1 == paint2 |
| 1435 | ~~~~ |
| 1436 | |
| 1437 | </fiddle-embed></div> |
| 1438 | |
| 1439 | --- |
| 1440 | |
| 1441 | # <a name="Automatic_Hinting"></a> Automatic Hinting |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1442 | 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> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1443 | instructs the <a href="undocumented#Font_Manager">Font Manager</a> to always hint <a href="#Glyph">Glyphs</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1444 | <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 |
| 1445 | <a href="#SkPaint_kSlight_Hinting">kSlight Hinting</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1446 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1447 | <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] | 1448 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1449 | <a name="SkPaint_isAutohinted"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1450 | ## isAutohinted |
| 1451 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1452 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1453 | bool isAutohinted() const |
| 1454 | </pre> |
| 1455 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1456 | 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 |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1457 | 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 |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1458 | <a href="#Glyph">Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1459 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1460 | 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] | 1461 | |
| 1462 | ### Return Value |
| 1463 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1464 | <a href="#SkPaint_kAutoHinting_Flag">kAutoHinting Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1465 | |
| 1466 | ### Example |
| 1467 | |
| 1468 | <div><fiddle-embed name="aa4781afbe3b90e7ef56a287e5b9ce1e"> |
| 1469 | |
| 1470 | #### Example Output |
| 1471 | |
| 1472 | ~~~~ |
| 1473 | paint.isAutohinted() == !!(paint.getFlags() & SkPaint::kAutoHinting_Flag) |
| 1474 | paint.isAutohinted() == !!(paint.getFlags() & SkPaint::kAutoHinting_Flag) |
| 1475 | ~~~~ |
| 1476 | |
| 1477 | </fiddle-embed></div> |
| 1478 | |
| 1479 | ### See Also |
| 1480 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1481 | <a href="#SkPaint_setAutohinted">setAutohinted</a> <a href="#SkPaint_Hinting">Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1482 | |
| 1483 | --- |
| 1484 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1485 | <a name="SkPaint_setAutohinted"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1486 | ## setAutohinted |
| 1487 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1488 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1489 | void setAutohinted(bool useAutohinter) |
| 1490 | </pre> |
| 1491 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1492 | 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, |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1493 | instruct the <a href="undocumented#Font_Manager">Font Manager</a> to always hint <a href="#Glyph">Glyphs</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1494 | <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 |
| 1495 | <a href="#SkPaint_kSlight_Hinting">kSlight Hinting</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1496 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1497 | 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] | 1498 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1499 | Sets <a href="#SkPaint_kAutoHinting_Flag">kAutoHinting Flag</a> if <a href="#SkPaint_setAutohinted_useAutohinter">useAutohinter</a> is true. |
| 1500 | 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] | 1501 | |
| 1502 | ### Parameters |
| 1503 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1504 | <table> <tr> <td><a name="SkPaint_setAutohinted_useAutohinter"> <code><strong>useAutohinter </strong></code> </a></td> <td> |
| 1505 | setting for <a href="#SkPaint_kAutoHinting_Flag">kAutoHinting Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1506 | </tr> |
| 1507 | </table> |
| 1508 | |
| 1509 | ### Example |
| 1510 | |
| 1511 | <div><fiddle-embed name="4e185306d7de9390fe8445eed0139309"></fiddle-embed></div> |
| 1512 | |
| 1513 | ### See Also |
| 1514 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1515 | <a href="#SkPaint_isAutohinted">isAutohinted</a> <a href="#SkPaint_Hinting">Hinting</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1516 | |
| 1517 | --- |
| 1518 | |
| 1519 | # <a name="Vertical_Text"></a> Vertical Text |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1520 | <a href="undocumented#Text">Text</a> may be drawn by positioning each glyph, or by positioning the first glyph and |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1521 | using <a href="#Advance">Font Advance</a> to position subsequent <a href="#Glyph">Glyphs</a>. By default, each successive glyph |
| 1522 | is positioned to the right of the preceding glyph. <a href="#Vertical_Text">Vertical Text</a> sets successive |
| 1523 | <a href="#Glyph">Glyphs</a> to position below the preceding glyph. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1524 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1525 | Skia can translate text character codes as a series of <a href="#Glyph">Glyphs</a>, but does not implement |
| 1526 | font substitution, |
| 1527 | textual substitution, line layout, or contextual spacing like Kerning pairs. Use |
| 1528 | a text shaping engine like <a href="http://harfbuzz.org/">HarfBuzz</a> to translate text runs |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1529 | into glyph series. |
| 1530 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1531 | <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] | 1532 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1533 | <a href="#SkPaint_Flags">Flags</a> <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> if clear draws text left to right. |
| 1534 | <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] | 1535 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1536 | <a href="#Vertical_Text">Vertical Text</a> is clear by default. |
| 1537 | <a href="#Vertical_Text">Vertical Text</a> can be set by default by setting <a href="undocumented#SkPaintDefaults_Flags">SkPaintDefaults Flags</a> to |
| 1538 | <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> at compile time. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1539 | |
| 1540 | ### Example |
| 1541 | |
| 1542 | <div><fiddle-embed name="8df5800819311b71373d9abb669b49b8"></fiddle-embed></div> |
| 1543 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1544 | <a name="SkPaint_isVerticalText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1545 | ## isVerticalText |
| 1546 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1547 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1548 | bool isVerticalText() const |
| 1549 | </pre> |
| 1550 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1551 | If true, <a href="#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] | 1552 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1553 | 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] | 1554 | |
| 1555 | ### Return Value |
| 1556 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1557 | <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1558 | |
| 1559 | ### Example |
| 1560 | |
| 1561 | <div><fiddle-embed name="4a269b16e644d473870ffa873396f139"> |
| 1562 | |
| 1563 | #### Example Output |
| 1564 | |
| 1565 | ~~~~ |
| 1566 | paint.isVerticalText() == !!(paint.getFlags() & SkPaint::kVerticalText_Flag) |
| 1567 | paint.isVerticalText() == !!(paint.getFlags() & SkPaint::kVerticalText_Flag) |
| 1568 | ~~~~ |
| 1569 | |
| 1570 | </fiddle-embed></div> |
| 1571 | |
| 1572 | --- |
| 1573 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1574 | <a name="SkPaint_setVerticalText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1575 | ## setVerticalText |
| 1576 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1577 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1578 | void setVerticalText(bool verticalText) |
| 1579 | </pre> |
| 1580 | |
| 1581 | If true, text advance positions the next glyph below the previous glyph instead of to the |
| 1582 | right of previous glyph. |
| 1583 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1584 | Sets <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> if vertical is true. |
| 1585 | 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] | 1586 | |
| 1587 | ### Parameters |
| 1588 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1589 | <table> <tr> <td><a name="SkPaint_setVerticalText_verticalText"> <code><strong>verticalText </strong></code> </a></td> <td> |
| 1590 | setting for <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1591 | </tr> |
| 1592 | </table> |
| 1593 | |
| 1594 | ### Example |
| 1595 | |
| 1596 | <div><fiddle-embed name="6fbd7e9e1a346cb8d7f537786009c736"> |
| 1597 | |
| 1598 | #### Example Output |
| 1599 | |
| 1600 | ~~~~ |
| 1601 | paint1 == paint2 |
| 1602 | ~~~~ |
| 1603 | |
| 1604 | </fiddle-embed></div> |
| 1605 | |
| 1606 | --- |
| 1607 | |
| 1608 | # <a name="Fake_Bold"></a> Fake Bold |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1609 | <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] | 1610 | is not available. Skia does not provide font substitution; it is up to the client to find the |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 1611 | 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] | 1612 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1613 | 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] | 1614 | is not available. |
| 1615 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1616 | A FreeType based port may define SK_USE_FREETYPE_EMBOLDEN at compile time to direct |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1617 | the font engine to create the bold <a href="#Glyph">Glyphs</a>. Otherwise, the extra bold is computed |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1618 | 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] | 1619 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1620 | <a href="#Fake_Bold">Fake Bold</a> is disabled by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1621 | |
| 1622 | ### Example |
| 1623 | |
| 1624 | <div><fiddle-embed name="e811f4829a2daaaeaad3795504a7e02a"></fiddle-embed></div> |
| 1625 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1626 | <a name="SkPaint_isFakeBoldText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1627 | ## isFakeBoldText |
| 1628 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1629 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1630 | bool isFakeBoldText() const |
| 1631 | </pre> |
| 1632 | |
| 1633 | If true, approximate bold by increasing the stroke width when creating glyph bitmaps |
| 1634 | from outlines. |
| 1635 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1636 | 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] | 1637 | |
| 1638 | ### Return Value |
| 1639 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1640 | <a href="#SkPaint_kFakeBoldText_Flag">kFakeBoldText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1641 | |
| 1642 | ### Example |
| 1643 | |
| 1644 | <div><fiddle-embed name="f54d1f85b16073b80b9eef2e1a1d151d"> |
| 1645 | |
| 1646 | #### Example Output |
| 1647 | |
| 1648 | ~~~~ |
| 1649 | paint.isFakeBoldText() == !!(paint.getFlags() & SkPaint::kFakeBoldText_Flag) |
| 1650 | paint.isFakeBoldText() == !!(paint.getFlags() & SkPaint::kFakeBoldText_Flag) |
| 1651 | ~~~~ |
| 1652 | |
| 1653 | </fiddle-embed></div> |
| 1654 | |
| 1655 | --- |
| 1656 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1657 | <a name="SkPaint_setFakeBoldText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1658 | ## setFakeBoldText |
| 1659 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1660 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1661 | void setFakeBoldText(bool fakeBoldText) |
| 1662 | </pre> |
| 1663 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1664 | 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] | 1665 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1666 | Sets <a href="#SkPaint_kFakeBoldText_Flag">kFakeBoldText Flag</a> if <a href="#SkPaint_setFakeBoldText_fakeBoldText">fakeBoldText</a> is true. |
| 1667 | 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] | 1668 | |
| 1669 | ### Parameters |
| 1670 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1671 | <table> <tr> <td><a name="SkPaint_setFakeBoldText_fakeBoldText"> <code><strong>fakeBoldText </strong></code> </a></td> <td> |
| 1672 | setting for <a href="#SkPaint_kFakeBoldText_Flag">kFakeBoldText Flag</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1673 | </tr> |
| 1674 | </table> |
| 1675 | |
| 1676 | ### Example |
| 1677 | |
| 1678 | <div><fiddle-embed name="594d47858eb11028cb626515a520910a"> |
| 1679 | |
| 1680 | #### Example Output |
| 1681 | |
| 1682 | ~~~~ |
| 1683 | paint1 == paint2 |
| 1684 | ~~~~ |
| 1685 | |
| 1686 | </fiddle-embed></div> |
| 1687 | |
| 1688 | --- |
| 1689 | |
| 1690 | # <a name="Full_Hinting_Spacing"></a> Full Hinting Spacing |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1691 | if <a href="#SkPaint_Hinting">Hinting</a> is set to <a href="#SkPaint_kFull_Hinting">kFull Hinting</a>, <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> adjusts the character |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1692 | spacing by the difference of the hinted and Unhinted <a href="undocumented#Left_Side_Bearing">Left Side Bearing</a> and |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1693 | <a href="undocumented#Right_Side_Bearing">Right Side Bearing</a>. <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> only applies to platforms that use |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1694 | FreeType as their <a href="#Engine">Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1695 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1696 | <a href="SkPaint_Reference#Full_Hinting_Spacing">Full Hinting Spacing</a> is not related to text Kerning, where the space between |
| 1697 | a specific pair of characters is adjusted using data in the font Kerning tables. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1698 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1699 | <a name="SkPaint_isDevKernText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1700 | ## isDevKernText |
| 1701 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1702 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1703 | bool isDevKernText() const |
| 1704 | </pre> |
| 1705 | |
| 1706 | Returns if character spacing may be adjusted by the hinting difference. |
| 1707 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1708 | Equivalent to <a href="#SkPaint_getFlags">getFlags</a> masked with <a href="#SkPaint_kDevKernText_Flag">kDevKernText Flag</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1709 | |
| 1710 | ### Return Value |
| 1711 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1712 | <a href="#SkPaint_kDevKernText_Flag">kDevKernText Flag</a> state |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1713 | |
| 1714 | ### Example |
| 1715 | |
| 1716 | <div><fiddle-embed name="4f69a84b2505b12809c30b0cc09c5157"></fiddle-embed></div> |
| 1717 | |
| 1718 | --- |
| 1719 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1720 | <a name="SkPaint_setDevKernText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1721 | ## setDevKernText |
| 1722 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1723 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1724 | void setDevKernText(bool devKernText) |
| 1725 | </pre> |
| 1726 | |
| 1727 | Requests, but does not require, to use hinting to adjust glyph spacing. |
| 1728 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1729 | Sets <a href="#SkPaint_kDevKernText_Flag">kDevKernText Flag</a> if <a href="#SkPaint_setDevKernText_devKernText">devKernText</a> is true. |
| 1730 | Clears <a href="#SkPaint_kDevKernText_Flag">kDevKernText Flag</a> if <a href="#SkPaint_setDevKernText_devKernText">devKernText</a> is false. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1731 | |
| 1732 | ### Parameters |
| 1733 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1734 | <table> <tr> <td><a name="SkPaint_setDevKernText_devKernText"> <code><strong>devKernText </strong></code> </a></td> <td> |
| 1735 | setting for <a href="#SkPaint_setDevKernText_devKernText">devKernText</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1736 | </tr> |
| 1737 | </table> |
| 1738 | |
| 1739 | ### Example |
| 1740 | |
| 1741 | <div><fiddle-embed name="2b718a059072908bf68942503f264797"> |
| 1742 | |
| 1743 | #### Example Output |
| 1744 | |
| 1745 | ~~~~ |
| 1746 | paint1 == paint2 |
| 1747 | ~~~~ |
| 1748 | |
| 1749 | </fiddle-embed></div> |
| 1750 | |
| 1751 | --- |
| 1752 | |
| 1753 | # <a name="Filter_Quality_Methods"></a> Filter Quality Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1754 | <a href="undocumented#Filter_Quality">Filter Quality</a> trades speed for image filtering when the image is scaled. |
| 1755 | A lower <a href="undocumented#Filter_Quality">Filter Quality</a> draws faster, but has less fidelity. |
| 1756 | A higher <a href="undocumented#Filter_Quality">Filter Quality</a> draws slower, but looks better. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1757 | If the image is drawn without scaling, the <a href="undocumented#Filter_Quality">Filter Quality</a> choice will not result |
| 1758 | in a noticeable difference. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1759 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1760 | <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] | 1761 | |
| 1762 | <table> <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1763 | <td><a href="#SkCanvas_drawBitmap">SkCanvas::drawBitmap</a></td> </tr> <tr> |
| 1764 | <td><a href="#SkCanvas_drawBitmapRect">SkCanvas::drawBitmapRect</a></td> </tr> <tr> |
| 1765 | <td><a href="#SkCanvas_drawImage">SkCanvas::drawImage</a></td> </tr> <tr> |
| 1766 | <td><a href="#SkCanvas_drawImageRect">SkCanvas::drawImageRect</a></td> </tr> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1767 | </table> |
| 1768 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1769 | 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] | 1770 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1771 | <a href="undocumented#Filter_Quality">Filter Quality</a> is <a href="undocumented#SkFilterQuality">kNone SkFilterQuality</a> by default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1772 | |
| 1773 | ### Example |
| 1774 | |
| 1775 | <div><fiddle-embed name="ee77f83f7291e07ae0d89f1380c7d67c"></fiddle-embed></div> |
| 1776 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1777 | <a name="SkPaint_getFilterQuality"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1778 | ## getFilterQuality |
| 1779 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1780 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1781 | SkFilterQuality getFilterQuality() const |
| 1782 | </pre> |
| 1783 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1784 | 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] | 1785 | draws faster; a higher setting looks better when the image is scaled. |
| 1786 | |
| 1787 | ### Return Value |
| 1788 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1789 | one of: <a href="undocumented#SkFilterQuality">kNone SkFilterQuality</a>, <a href="undocumented#SkFilterQuality">kLow SkFilterQuality</a>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1790 | <a href="undocumented#SkFilterQuality">kMedium SkFilterQuality</a>, <a href="undocumented#SkFilterQuality">kHigh SkFilterQuality</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1791 | |
| 1792 | ### Example |
| 1793 | |
| 1794 | <div><fiddle-embed name="d4ca1f23809b6835c4ba46ea98a86900"> |
| 1795 | |
| 1796 | #### Example Output |
| 1797 | |
| 1798 | ~~~~ |
| 1799 | kNone_SkFilterQuality == paint.getFilterQuality() |
| 1800 | ~~~~ |
| 1801 | |
| 1802 | </fiddle-embed></div> |
| 1803 | |
| 1804 | --- |
| 1805 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1806 | <a name="SkPaint_setFilterQuality"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1807 | ## setFilterQuality |
| 1808 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1809 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1810 | void setFilterQuality(SkFilterQuality quality) |
| 1811 | </pre> |
| 1812 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1813 | 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] | 1814 | draws faster; a higher setting looks better when the image is scaled. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1815 | 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] | 1816 | |
| 1817 | ### Parameters |
| 1818 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1819 | <table> <tr> <td><a name="SkPaint_setFilterQuality_quality"> <code><strong>quality </strong></code> </a></td> <td> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1820 | one of: <a href="undocumented#SkFilterQuality">kNone SkFilterQuality</a>, <a href="undocumented#SkFilterQuality">kLow SkFilterQuality</a>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1821 | <a href="undocumented#SkFilterQuality">kMedium SkFilterQuality</a>, <a href="undocumented#SkFilterQuality">kHigh SkFilterQuality</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1822 | </tr> |
| 1823 | </table> |
| 1824 | |
| 1825 | ### Example |
| 1826 | |
| 1827 | <div><fiddle-embed name="e4288fabf24ee60b645e8bb6ea0afadf"> |
| 1828 | |
| 1829 | #### Example Output |
| 1830 | |
| 1831 | ~~~~ |
| 1832 | kHigh_SkFilterQuality == paint.getFilterQuality() |
| 1833 | ~~~~ |
| 1834 | |
| 1835 | </fiddle-embed></div> |
| 1836 | |
| 1837 | ### See Also |
| 1838 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1839 | <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] | 1840 | |
| 1841 | --- |
| 1842 | |
| 1843 | # <a name="Color_Methods"></a> Color Methods |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1844 | <a href="undocumented#Color">Color</a> specifies the <a href="#RGB_Red">Color RGB Red</a>, <a href="#RGB_Blue">Color RGB Blue</a>, <a href="#RGB_Green">Color RGB Green</a>, and <a href="#Alpha">Color Alpha</a> values used to draw a filled |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1845 | or stroked shape in a |
| 1846 | 32-bit value. Each component occupies 8-bits, ranging from zero: no contribution; |
| 1847 | to 255: full intensity. All values in any combination are valid. |
| 1848 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1849 | <a href="undocumented#Color">Color</a> is not <a href="#Premultiply">Premultiplied</a>; |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1850 | <a href="#Alpha">Color Alpha</a> sets the transparency independent of <a href="#RGB">Color RGB</a>: <a href="#RGB_Red">Color RGB Red</a>, <a href="#RGB_Blue">Color RGB Blue</a>, and <a href="#RGB_Green">Color RGB Green</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1851 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1852 | The bit positions of <a href="#Alpha">Color Alpha</a> and <a href="#RGB">Color RGB</a> are independent of the bit positions |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1853 | on the output device, which may have more or fewer bits, and may have a different arrangement. |
| 1854 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1855 | | bit positions | <a href="#Alpha">Color Alpha</a> | <a href="#RGB_Red">Color RGB Red</a> | <a href="#RGB_Blue">Color RGB Blue</a> | <a href="#RGB_Green">Color RGB Green</a> | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1856 | | --- | --- | --- | --- | --- | |
| 1857 | | | 31 - 24 | 23 - 16 | 15 - 8 | 7 - 0 | |
| 1858 | |
| 1859 | ### Example |
| 1860 | |
| 1861 | <div><fiddle-embed name="214b559d75c65a7bef6ef4be1f860053"></fiddle-embed></div> |
| 1862 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1863 | <a name="SkPaint_getColor"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1864 | ## getColor |
| 1865 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1866 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1867 | SkColor getColor() const |
| 1868 | </pre> |
| 1869 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1870 | Retrieves <a href="#Alpha">Alpha</a> and <a href="#RGB">Color RGB</a>, <a href="#Unpremultiply">Unpremultiplied</a>, packed into 32 bits. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1871 | Use helpers <a href="undocumented#SkColorGetA">SkColorGetA</a>, <a href="undocumented#SkColorGetR">SkColorGetR</a>, <a href="undocumented#SkColorGetG">SkColorGetG</a>, and <a href="undocumented#SkColorGetB">SkColorGetB</a> to extract |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1872 | a color component. |
| 1873 | |
| 1874 | ### Return Value |
| 1875 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1876 | <a href="#Unpremultiply">Unpremultiplied</a> <a href="#ARGB">Color ARGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1877 | |
| 1878 | ### Example |
| 1879 | |
| 1880 | <div><fiddle-embed name="72d41f890203109a41f589a7403acae9"> |
| 1881 | |
| 1882 | #### Example Output |
| 1883 | |
| 1884 | ~~~~ |
| 1885 | Yellow is 100% red, 100% green, and 0% blue. |
| 1886 | ~~~~ |
| 1887 | |
| 1888 | </fiddle-embed></div> |
| 1889 | |
| 1890 | ### See Also |
| 1891 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 1892 | <a href="undocumented#SkColor">SkColor</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1893 | |
| 1894 | --- |
| 1895 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1896 | <a name="SkPaint_setColor"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1897 | ## setColor |
| 1898 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1899 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1900 | void setColor(SkColor color) |
| 1901 | </pre> |
| 1902 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1903 | Sets <a href="#Alpha">Alpha</a> and <a href="#RGB">Color RGB</a> used when stroking and filling. The <a href="#SkPaint_setColor_color">color</a> is a 32-bit value, |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1904 | <a href="#Unpremultiply">Unpremultiplied</a>, packing 8-bit components for <a href="#Alpha">Alpha</a>, <a href="#Red">Red</a>, <a href="#Blue">Blue</a>, and <a href="#Green">Green</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1905 | |
| 1906 | ### Parameters |
| 1907 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1908 | <table> <tr> <td><a name="SkPaint_setColor_color"> <code><strong>color </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1909 | <a href="#Unpremultiply">Unpremultiplied</a> <a href="#ARGB">Color ARGB</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1910 | </tr> |
| 1911 | </table> |
| 1912 | |
| 1913 | ### Example |
| 1914 | |
| 1915 | <div><fiddle-embed name="6e70f18300bd676a3c056ceb6b62f8df"> |
| 1916 | |
| 1917 | #### Example Output |
| 1918 | |
| 1919 | ~~~~ |
| 1920 | green1 == green2 |
| 1921 | ~~~~ |
| 1922 | |
| 1923 | </fiddle-embed></div> |
| 1924 | |
| 1925 | ### See Also |
| 1926 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1927 | <a href="undocumented#SkColor">SkColor</a> <a href="#SkPaint_setARGB">setARGB</a> <a href="undocumented#SkColorSetARGB">SkColorSetARGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1928 | |
| 1929 | --- |
| 1930 | |
| 1931 | ## <a name="Alpha_Methods"></a> Alpha Methods |
| 1932 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1933 | <a href="#Alpha">Color Alpha</a> sets the transparency independent of <a href="#RGB">Color RGB</a>: <a href="#RGB_Red">Color RGB Red</a>, <a href="#RGB_Blue">Color RGB Blue</a>, and <a href="#RGB_Green">Color RGB Green</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1934 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1935 | <a name="SkPaint_getAlpha"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1936 | ## getAlpha |
| 1937 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1938 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1939 | uint8_t getAlpha() const |
| 1940 | </pre> |
| 1941 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1942 | Retrieves <a href="#Alpha">Alpha</a> from the <a href="undocumented#Color">Color</a> used when stroking and filling. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1943 | |
| 1944 | ### Return Value |
| 1945 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1946 | <a href="#Alpha">Alpha</a> ranging from zero, fully transparent, to 255, fully opaque |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1947 | |
| 1948 | ### Example |
| 1949 | |
| 1950 | <div><fiddle-embed name="9a85bb62fe3d877b18fb7f952c4fa7f7"> |
| 1951 | |
| 1952 | #### Example Output |
| 1953 | |
| 1954 | ~~~~ |
| 1955 | 255 == paint.getAlpha() |
| 1956 | ~~~~ |
| 1957 | |
| 1958 | </fiddle-embed></div> |
| 1959 | |
| 1960 | --- |
| 1961 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1962 | <a name="SkPaint_setAlpha"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1963 | ## setAlpha |
| 1964 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1965 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1966 | void setAlpha(U8CPU a) |
| 1967 | </pre> |
| 1968 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 1969 | Replaces <a href="#Alpha">Alpha</a>, leaving <a href="#RGB">Color RGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1970 | unchanged. An out of range value triggers an assert in the debug |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1971 | build. <a href="#SkPaint_setAlpha_a">a</a> is <a href="#SkPaint_setAlpha_a">a</a> value from zero to 255. |
| 1972 | <a href="#SkPaint_setAlpha_a">a</a> set to zero makes <a href="undocumented#Color">Color</a> fully transparent; <a href="#SkPaint_setAlpha_a">a</a> set to 255 makes <a href="undocumented#Color">Color</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1973 | fully opaque. |
| 1974 | |
| 1975 | ### Parameters |
| 1976 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 1977 | <table> <tr> <td><a name="SkPaint_setAlpha_a"> <code><strong>a </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 1978 | <a href="#Alpha">Alpha</a> component of <a href="undocumented#Color">Color</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1979 | </tr> |
| 1980 | </table> |
| 1981 | |
| 1982 | ### Example |
| 1983 | |
| 1984 | <div><fiddle-embed name="6ddc0360512dfb9947e75c17e6a8103d"> |
| 1985 | |
| 1986 | #### Example Output |
| 1987 | |
| 1988 | ~~~~ |
| 1989 | 0x44112233 == paint.getColor() |
| 1990 | ~~~~ |
| 1991 | |
| 1992 | </fiddle-embed></div> |
| 1993 | |
| 1994 | --- |
| 1995 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 1996 | <a name="SkPaint_setARGB"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 1997 | ## setARGB |
| 1998 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 1999 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2000 | void setARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b) |
| 2001 | </pre> |
| 2002 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2003 | Sets <a href="undocumented#Color">Color</a> used when drawing solid fills. The color components range from 0 to 255. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 2004 | The color is <a href="#Unpremultiply">Unpremultiplied</a>; <a href="#Alpha">Alpha</a> sets the transparency independent of <a href="#RGB">Color RGB</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2005 | |
| 2006 | ### Parameters |
| 2007 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2008 | <table> <tr> <td><a name="SkPaint_setARGB_a"> <code><strong>a </strong></code> </a></td> <td> |
| 2009 | amount of <a href="#Alpha">Color Alpha</a>, from fully transparent (0) to fully opaque (255)</td> |
| 2010 | </tr> <tr> <td><a name="SkPaint_setARGB_r"> <code><strong>r </strong></code> </a></td> <td> |
| 2011 | amount of <a href="#RGB_Red">Color RGB Red</a>, from no red (0) to full red (255)</td> |
| 2012 | </tr> <tr> <td><a name="SkPaint_setARGB_g"> <code><strong>g </strong></code> </a></td> <td> |
| 2013 | amount of <a href="#RGB_Green">Color RGB Green</a>, from no green (0) to full green (255)</td> |
| 2014 | </tr> <tr> <td><a name="SkPaint_setARGB_b"> <code><strong>b </strong></code> </a></td> <td> |
| 2015 | amount of <a href="#RGB_Blue">Color RGB Blue</a>, from no blue (0) to full blue (255)</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2016 | </tr> |
| 2017 | </table> |
| 2018 | |
| 2019 | ### Example |
| 2020 | |
| 2021 | <div><fiddle-embed name="cb62e4755789ed32f7120dc55984959d"> |
| 2022 | |
| 2023 | #### Example Output |
| 2024 | |
| 2025 | ~~~~ |
| 2026 | transRed1 == transRed2 |
| 2027 | ~~~~ |
| 2028 | |
| 2029 | </fiddle-embed></div> |
| 2030 | |
| 2031 | ### See Also |
| 2032 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2033 | <a href="#SkPaint_setColor">setColor</a> <a href="undocumented#SkColorSetARGB">SkColorSetARGB</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2034 | |
| 2035 | --- |
| 2036 | |
| 2037 | # <a name="Style"></a> Style |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2038 | <a href="#Style">Style</a> specifies if the geometry is filled, stroked, or both filled and stroked. |
| 2039 | Some shapes ignore <a href="#Style">Style</a> and are always drawn filled or stroked. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2040 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2041 | Set <a href="#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] | 2042 | The fill covers the area inside the geometry for most shapes. |
| 2043 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2044 | Set <a href="#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] | 2045 | |
| 2046 | ## <a name="Fill"></a> Fill |
| 2047 | |
| 2048 | ### See Also |
| 2049 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2050 | <a href="#Fill_Type">Path Fill Type</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2051 | |
| 2052 | ## <a name="Stroke"></a> Stroke |
| 2053 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2054 | The stroke covers the area described by following the shape edge with a pen or brush of |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2055 | <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>. |
| 2056 | 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] | 2057 | 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] | 2058 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2059 | 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 |
| 2060 | may have gaps, and if <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> is set, <a href="#Alpha">Color Alpha</a> will increase to visually decrease coverage. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2061 | |
| 2062 | ## <a name="Hairline"></a> Hairline |
| 2063 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2064 | <a href="#Stroke_Width">Stroke Width</a> of zero has a special meaning and switches drawing to use <a href="#Hairline">Hairline</a>. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2065 | <a href="#Hairline">Hairline</a> draws the thinnest continuous frame. If <a href="#SkPaint_kAntiAlias_Flag">kAntiAlias Flag</a> is clear, adjacent pixels |
| 2066 | flow horizontally, vertically,or diagonally. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2067 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2068 | <a href="SkPath_Reference#Path">Path</a> drawing with <a href="#Hairline">Hairline</a> may hit the same pixel more than once. For instance, <a href="SkPath_Reference#Path">Path</a> containing |
| 2069 | two lines in one <a href="#Contour">Path Contour</a> will draw the corner point once, but may both lines may draw the adjacent |
| 2070 | 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] | 2071 | 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] | 2072 | while stroking. |
| 2073 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2074 | ## <a name="SkPaint_Style"></a> Enum SkPaint::Style |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2075 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2076 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2077 | enum <a href="#SkPaint_Style">Style</a> { |
| 2078 | <a href="#SkPaint_kFill_Style">kFill Style</a>, |
| 2079 | <a href="#SkPaint_kStroke_Style">kStroke Style</a>, |
| 2080 | <a href="#SkPaint_kStrokeAndFill_Style">kStrokeAndFill Style</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2081 | };</pre> |
| 2082 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2083 | 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] | 2084 | The stroke and fill |
| 2085 | share all paint attributes; for instance, they are drawn with the same color. |
| 2086 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2087 | 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] | 2088 | a fill draw. |
| 2089 | |
| 2090 | ### Constants |
| 2091 | |
| 2092 | <table> |
| 2093 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2094 | <td><a name="SkPaint_kFill_Style"> <code><strong>SkPaint::kFill_Style </strong></code> </a></td><td>0</td><td>Set to fill geometry. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2095 | 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="#Circle">Circles</a>, <a href="#Oval">Ovals</a>, <a href="SkPath_Reference#Path">Path</a>, and <a href="undocumented#Text">Text</a>. |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2096 | <a href="SkBitmap_Reference#Bitmap">Bitmap</a>, <a href="SkImage_Reference#Image">Image</a>, <a href="#Patch">Patches</a>, <a href="undocumented#Region">Region</a>, <a href="#Sprite">Sprites</a>, and <a href="undocumented#Vertices">Vertices</a> are painted as if |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2097 | <a href="#SkPaint_kFill_Style">kFill Style</a> is set, and ignore the set <a href="#SkPaint_Style">Style</a>. |
| 2098 | The <a href="#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] | 2099 | and to create an unfilled hole inside the shape. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2100 | <a href="#SkPaint_Style">Style</a> is set to <a href="#SkPaint_kFill_Style">kFill Style</a> by default.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2101 | </tr> |
| 2102 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2103 | <td><a name="SkPaint_kStroke_Style"> <code><strong>SkPaint::kStroke_Style </strong></code> </a></td><td>1</td><td>Set to stroke geometry. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2104 | 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="#Arc">Arcs</a>, <a href="#Circle">Circles</a>, <a href="#Oval">Ovals</a>, <a href="SkPath_Reference#Path">Path</a>, and <a href="undocumented#Text">Text</a>. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 2105 | <a href="#Arc">Arcs</a>, <a href="#Line">Lines</a>, and <a href="#Point">Points</a>, are always drawn as if <a href="#SkPaint_kStroke_Style">kStroke Style</a> is set, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2106 | and ignore the set <a href="#SkPaint_Style">Style</a>. |
| 2107 | The stroke construction is unaffected by the <a href="#Fill_Type">Path Fill Type</a>.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2108 | </tr> |
| 2109 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2110 | <td><a name="SkPaint_kStrokeAndFill_Style"> <code><strong>SkPaint::kStrokeAndFill_Style </strong></code> </a></td><td>2</td><td>Set to stroke and fill geometry. |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2111 | 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="#Circle">Circles</a>, <a href="#Oval">Ovals</a>, <a href="SkPath_Reference#Path">Path</a>, and <a href="undocumented#Text">Text</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2112 | <a href="SkPath_Reference#Path">Path</a> is treated as if it is set to <a href="#SkPath_kWinding_FillType">SkPath::kWinding FillType</a>, |
| 2113 | and the set <a href="#Fill_Type">Path Fill Type</a> is ignored.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2114 | </tr> |
| 2115 | |
| 2116 | </table> |
| 2117 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2118 | ## <a name="SkPaint__anonymous"></a> Enum SkPaint::_anonymous |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2119 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2120 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2121 | enum { |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2122 | <a href="#SkPaint_kStyleCount">kStyleCount</a> = <a href="#SkPaint_kStrokeAndFill_Style">kStrokeAndFill Style</a> + 1, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2123 | };</pre> |
| 2124 | |
| 2125 | ### Constants |
| 2126 | |
| 2127 | <table> |
| 2128 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2129 | <td><a name="SkPaint_kStyleCount"> <code><strong>SkPaint::kStyleCount </strong></code> </a></td><td>3</td><td>The number of different <a href="#SkPaint_Style">Style</a> values defined. |
| 2130 | May be used to verify that <a href="#SkPaint_Style">Style</a> is a legal value.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2131 | </tr> |
| 2132 | |
| 2133 | </table> |
| 2134 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2135 | <a name="SkPaint_getStyle"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2136 | ## getStyle |
| 2137 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2138 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2139 | Style getStyle() const |
| 2140 | </pre> |
| 2141 | |
| 2142 | Whether the geometry is filled, stroked, or filled and stroked. |
| 2143 | |
| 2144 | ### Return Value |
| 2145 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2146 | 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] | 2147 | |
| 2148 | ### Example |
| 2149 | |
| 2150 | <div><fiddle-embed name="1c5e18c3c0102d2dac86a78ba8c8ce01"> |
| 2151 | |
| 2152 | #### Example Output |
| 2153 | |
| 2154 | ~~~~ |
| 2155 | SkPaint::kFill_Style == paint.getStyle() |
| 2156 | ~~~~ |
| 2157 | |
| 2158 | </fiddle-embed></div> |
| 2159 | |
| 2160 | ### See Also |
| 2161 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2162 | <a href="#SkPaint_Style">Style</a> <a href="#SkPaint_setStyle">setStyle</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2163 | |
| 2164 | --- |
| 2165 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2166 | <a name="SkPaint_setStyle"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2167 | ## setStyle |
| 2168 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2169 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2170 | void setStyle(Style style) |
| 2171 | </pre> |
| 2172 | |
| 2173 | Sets whether the geometry is filled, stroked, or filled and stroked. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2174 | 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] | 2175 | |
| 2176 | ### Parameters |
| 2177 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2178 | <table> <tr> <td><a name="SkPaint_setStyle_style"> <code><strong>style </strong></code> </a></td> <td> |
| 2179 | 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] | 2180 | </tr> |
| 2181 | </table> |
| 2182 | |
| 2183 | ### Example |
| 2184 | |
| 2185 | <div><fiddle-embed name="c7bb6248e4735b8d1a32d02fba40d344"></fiddle-embed></div> |
| 2186 | |
| 2187 | ### See Also |
| 2188 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2189 | <a href="#SkPaint_Style">Style</a> <a href="#SkPaint_getStyle">getStyle</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2190 | |
| 2191 | --- |
| 2192 | |
| 2193 | ### See Also |
| 2194 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2195 | <a href="#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] | 2196 | |
| 2197 | # <a name="Stroke_Width"></a> Stroke Width |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2198 | <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] | 2199 | of the stroke perpendicular to the path direction when the paint style is |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2200 | 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] | 2201 | |
| 2202 | When width is greater than zero, the stroke encompasses as many pixels partially |
| 2203 | 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] | 2204 | the stroke is always one pixel wide. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2205 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2206 | The stroke dimensions are scaled by the canvas matrix, but <a href="#Hairline">Hairline</a> stroke |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2207 | remains one pixel wide regardless of scaling. |
| 2208 | |
| 2209 | The default width for the paint is zero. |
| 2210 | |
| 2211 | ### Example |
| 2212 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2213 | <div><fiddle-embed name="01e3e08a3022a351628ff54e84887756" gpu="true"><div>The pixels hit to represent thin lines vary with the angle of the |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2214 | line and the platform implementation.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2215 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2216 | <a name="SkPaint_getStrokeWidth"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2217 | ## getStrokeWidth |
| 2218 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2219 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2220 | SkScalar getStrokeWidth() const |
| 2221 | </pre> |
| 2222 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2223 | 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] | 2224 | outline the shape. |
| 2225 | |
| 2226 | ### Return Value |
| 2227 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2228 | zero for <a href="#Hairline">Hairline</a>, greater than zero for pen thickness |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2229 | |
| 2230 | ### Example |
| 2231 | |
| 2232 | <div><fiddle-embed name="99aa73f64df8bbf06e656cd891a81b9e"> |
| 2233 | |
| 2234 | #### Example Output |
| 2235 | |
| 2236 | ~~~~ |
| 2237 | 0 == paint.getStrokeWidth() |
| 2238 | ~~~~ |
| 2239 | |
| 2240 | </fiddle-embed></div> |
| 2241 | |
| 2242 | --- |
| 2243 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2244 | <a name="SkPaint_setStrokeWidth"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2245 | ## setStrokeWidth |
| 2246 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2247 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2248 | void setStrokeWidth(SkScalar width) |
| 2249 | </pre> |
| 2250 | |
| 2251 | Sets the thickness of the pen used by the paint to |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2252 | outline the shape. |
| 2253 | 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] | 2254 | |
| 2255 | ### Parameters |
| 2256 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2257 | <table> <tr> <td><a name="SkPaint_setStrokeWidth_width"> <code><strong>width </strong></code> </a></td> <td> |
| 2258 | zero thickness for <a href="#Hairline">Hairline</a>; greater than zero for pen thickness</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2259 | </tr> |
| 2260 | </table> |
| 2261 | |
| 2262 | ### Example |
| 2263 | |
| 2264 | <div><fiddle-embed name="0c4446c0870b5c7b5a2efe77ff92afb8"> |
| 2265 | |
| 2266 | #### Example Output |
| 2267 | |
| 2268 | ~~~~ |
| 2269 | 5 == paint.getStrokeWidth() |
| 2270 | ~~~~ |
| 2271 | |
| 2272 | </fiddle-embed></div> |
| 2273 | |
| 2274 | --- |
| 2275 | |
| 2276 | # <a name="Miter_Limit"></a> Miter Limit |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2277 | <a href="#Miter_Limit">Miter Limit</a> specifies the maximum miter length, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2278 | relative to the stroke width. |
| 2279 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2280 | <a href="#Miter_Limit">Miter Limit</a> is used when the <a href="#Stroke_Join">Stroke Join</a> |
| 2281 | 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> |
| 2282 | or <a href="#SkPaint_kStrokeAndFill_Style">kStrokeAndFill Style</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2283 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2284 | If the miter at a corner exceeds this limit, <a href="#SkPaint_kMiter_Join">kMiter Join</a> |
| 2285 | is replaced with <a href="#SkPaint_kBevel_Join">kBevel Join</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2286 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2287 | <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] | 2288 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2289 | miter limit = 1 / sin ( angle / 2 )<a href="#Miter_Limit">Miter Limit</a> default value is 4. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2290 | 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] | 2291 | in "SkUserConfig.h" or as a define supplied by the build environment. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2292 | |
| 2293 | Here are some miter limits and the angles that triggers them. |
| 2294 | |
| 2295 | | miter limit | angle in degrees | |
| 2296 | | --- | --- | |
| 2297 | | 10 | 11.48 | |
| 2298 | | 9 | 12.76 | |
| 2299 | | 8 | 14.36 | |
| 2300 | | 7 | 16.43 | |
| 2301 | | 6 | 19.19 | |
| 2302 | | 5 | 23.07 | |
| 2303 | | 4 | 28.96 | |
| 2304 | | 3 | 38.94 | |
| 2305 | | 2 | 60 | |
| 2306 | | 1 | 180 | |
| 2307 | |
| 2308 | ### Example |
| 2309 | |
| 2310 | <div><fiddle-embed name="5de2de0f00354e59074a9bb1a42d5a63"><div>This example draws a stroked corner and the miter length beneath. |
| 2311 | When the miter limit is decreased slightly, the miter join is replaced |
| 2312 | by a bevel join.</div></fiddle-embed></div> |
| 2313 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2314 | <a name="SkPaint_getStrokeMiter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2315 | ## getStrokeMiter |
| 2316 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2317 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2318 | SkScalar getStrokeMiter() const |
| 2319 | </pre> |
| 2320 | |
| 2321 | The limit at which a sharp corner is drawn beveled. |
| 2322 | |
| 2323 | ### Return Value |
| 2324 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2325 | zero and greater <a href="#Miter_Limit">Miter Limit</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2326 | |
| 2327 | ### Example |
| 2328 | |
| 2329 | <div><fiddle-embed name="50da74a43b725f07a914df588c867d36"> |
| 2330 | |
| 2331 | #### Example Output |
| 2332 | |
| 2333 | ~~~~ |
| 2334 | default miter limit == 4 |
| 2335 | ~~~~ |
| 2336 | |
| 2337 | </fiddle-embed></div> |
| 2338 | |
| 2339 | ### See Also |
| 2340 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2341 | <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] | 2342 | |
| 2343 | --- |
| 2344 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2345 | <a name="SkPaint_setStrokeMiter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2346 | ## setStrokeMiter |
| 2347 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2348 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2349 | void setStrokeMiter(SkScalar miter) |
| 2350 | </pre> |
| 2351 | |
| 2352 | The limit at which a sharp corner is drawn beveled. |
| 2353 | Valid values are zero and greater. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2354 | 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] | 2355 | |
| 2356 | ### Parameters |
| 2357 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2358 | <table> <tr> <td><a name="SkPaint_setStrokeMiter_miter"> <code><strong>miter </strong></code> </a></td> <td> |
| 2359 | zero and greater <a href="#Miter_Limit">Miter Limit</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2360 | </tr> |
| 2361 | </table> |
| 2362 | |
| 2363 | ### Example |
| 2364 | |
| 2365 | <div><fiddle-embed name="700b284dbc97785c6a9c9636088713ad"> |
| 2366 | |
| 2367 | #### Example Output |
| 2368 | |
| 2369 | ~~~~ |
| 2370 | default miter limit == 8 |
| 2371 | ~~~~ |
| 2372 | |
| 2373 | </fiddle-embed></div> |
| 2374 | |
| 2375 | ### See Also |
| 2376 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2377 | <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] | 2378 | |
| 2379 | --- |
| 2380 | |
| 2381 | # <a name="Stroke_Cap"></a> Stroke Cap |
| 2382 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2383 | ## <a name="SkPaint_Cap"></a> Enum SkPaint::Cap |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2384 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2385 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2386 | enum <a href="#SkPaint_Cap">Cap</a> { |
| 2387 | <a href="#SkPaint_kButt_Cap">kButt Cap</a>, |
| 2388 | <a href="#SkPaint_kRound_Cap">kRound Cap</a>, |
| 2389 | <a href="#SkPaint_kSquare_Cap">kSquare Cap</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2390 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2391 | <a href="#SkPaint_kLast_Cap">kLast Cap</a> = <a href="#SkPaint_kSquare_Cap">kSquare Cap</a>, |
| 2392 | <a href="#SkPaint_kDefault_Cap">kDefault Cap</a> = <a href="#SkPaint_kButt_Cap">kButt Cap</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2393 | }; |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 2394 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2395 | static constexpr int <a href="#SkPaint_kCapCount">kCapCount</a> = <a href="#SkPaint_kLast_Cap">kLast Cap</a> + 1;</pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2396 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2397 | <a href="#Stroke_Cap">Stroke Cap</a> draws at the beginning and end of an open <a href="#Contour">Path Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2398 | |
| 2399 | ### Constants |
| 2400 | |
| 2401 | <table> |
| 2402 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2403 | <td><a name="SkPaint_kButt_Cap"> <code><strong>SkPaint::kButt_Cap </strong></code> </a></td><td>0</td><td>Does not extend the stroke past the beginning or the end.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2404 | </tr> |
| 2405 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2406 | <td><a name="SkPaint_kRound_Cap"> <code><strong>SkPaint::kRound_Cap </strong></code> </a></td><td>1</td><td>Adds a circle with a diameter equal to <a href="#Stroke_Width">Stroke Width</a> at the beginning |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2407 | and end.</td> |
| 2408 | </tr> |
| 2409 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2410 | <td><a name="SkPaint_kSquare_Cap"> <code><strong>SkPaint::kSquare_Cap </strong></code> </a></td><td>2</td><td>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] | 2411 | and end. The square sides are parallel to the initial and final direction |
| 2412 | of the stroke.</td> |
| 2413 | </tr> |
| 2414 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2415 | <td><a name="SkPaint_kLast_Cap"> <code><strong>SkPaint::kLast_Cap </strong></code> </a></td><td>2</td><td>Equivalent to the largest value for <a href="#Stroke_Cap">Stroke Cap</a>.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2416 | </tr> |
| 2417 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2418 | <td><a name="SkPaint_kDefault_Cap"> <code><strong>SkPaint::kDefault_Cap </strong></code> </a></td><td>0</td><td>Equivalent to <a href="#SkPaint_kButt_Cap">kButt Cap</a>. |
| 2419 | <a href="#Stroke_Cap">Stroke Cap</a> is set to <a href="#SkPaint_kButt_Cap">kButt Cap</a> by default.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2420 | </tr> |
| 2421 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2422 | <td><a name="SkPaint_kCapCount"> <code><strong>SkPaint::kCapCount </strong></code> </a></td><td>3</td><td>The number of different <a href="#Stroke_Cap">Stroke Cap</a> values defined. |
| 2423 | May be used to verify that <a href="#Stroke_Cap">Stroke Cap</a> is a legal value.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2424 | </tr> |
| 2425 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2426 | Stroke describes the area covered by a pen of <a href="#Stroke_Width">Stroke Width</a> as it |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2427 | follows the <a href="#Contour">Path Contour</a>, moving parallel to the contour direction. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2428 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2429 | If the <a href="#Contour">Path Contour</a> is not terminated by <a href="#SkPath_kClose_Verb">SkPath::kClose Verb</a>, the contour has a |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2430 | visible beginning and end. |
| 2431 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2432 | <a href="#Contour">Path Contour</a> may start and end at the same point; defining <a href="SkPath_Reference#Zero_Length">Zero Length Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2433 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2434 | <a href="#SkPaint_kButt_Cap">kButt Cap</a> and <a href="SkPath_Reference#Zero_Length">Zero Length Contour</a> is not drawn. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2435 | <a href="#SkPaint_kRound_Cap">kRound Cap</a> and <a href="SkPath_Reference#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] | 2436 | at the contour point. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2437 | <a href="#SkPaint_kSquare_Cap">kSquare Cap</a> and <a href="SkPath_Reference#Zero_Length">Zero Length Contour</a> draws an upright square with a side of |
| 2438 | <a href="#Stroke_Width">Stroke Width</a> at the contour point. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2439 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2440 | <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] | 2441 | |
| 2442 | </table> |
| 2443 | |
| 2444 | ### Example |
| 2445 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 2446 | <div><fiddle-embed name="2bffb6384cc20077e632e7d01da045ca"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2447 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2448 | <a name="SkPaint_getStrokeCap"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2449 | ## getStrokeCap |
| 2450 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2451 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2452 | Cap getStrokeCap() const |
| 2453 | </pre> |
| 2454 | |
| 2455 | The geometry drawn at the beginning and end of strokes. |
| 2456 | |
| 2457 | ### Return Value |
| 2458 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2459 | 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] | 2460 | |
| 2461 | ### Example |
| 2462 | |
| 2463 | <div><fiddle-embed name="aabf9baee8e026fae36fca30e955512b"> |
| 2464 | |
| 2465 | #### Example Output |
| 2466 | |
| 2467 | ~~~~ |
| 2468 | kButt_Cap == default stroke cap |
| 2469 | ~~~~ |
| 2470 | |
| 2471 | </fiddle-embed></div> |
| 2472 | |
| 2473 | ### See Also |
| 2474 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2475 | <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] | 2476 | |
| 2477 | --- |
| 2478 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2479 | <a name="SkPaint_setStrokeCap"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2480 | ## setStrokeCap |
| 2481 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2482 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2483 | void setStrokeCap(Cap cap) |
| 2484 | </pre> |
| 2485 | |
| 2486 | The geometry drawn at the beginning and end of strokes. |
| 2487 | |
| 2488 | ### Parameters |
| 2489 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2490 | <table> <tr> <td><a name="SkPaint_setStrokeCap_cap"> <code><strong>cap </strong></code> </a></td> <td> |
| 2491 | 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>; |
| 2492 | 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] | 2493 | </tr> |
| 2494 | </table> |
| 2495 | |
| 2496 | ### Example |
| 2497 | |
| 2498 | <div><fiddle-embed name="de83fbd848a4625345b4b87a6e55d98a"> |
| 2499 | |
| 2500 | #### Example Output |
| 2501 | |
| 2502 | ~~~~ |
| 2503 | kRound_Cap == paint.getStrokeCap() |
| 2504 | ~~~~ |
| 2505 | |
| 2506 | </fiddle-embed></div> |
| 2507 | |
| 2508 | ### See Also |
| 2509 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2510 | <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] | 2511 | |
| 2512 | --- |
| 2513 | |
| 2514 | # <a name="Stroke_Join"></a> Stroke Join |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2515 | <a href="#Stroke_Join">Stroke Join</a> draws at the sharp corners of an open or closed <a href="#Contour">Path Contour</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2516 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2517 | Stroke describes the area covered by a pen of <a href="#Stroke_Width">Stroke Width</a> as it |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2518 | follows the <a href="#Contour">Path Contour</a>, moving parallel to the contour direction. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2519 | |
| 2520 | If the contour direction changes abruptly, because the tangent direction leading |
| 2521 | to the end of a curve within the contour does not match the tangent direction of |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2522 | 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] | 2523 | |
| 2524 | ### Example |
| 2525 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 2526 | <div><fiddle-embed name="917c44b504d3f9308571fd3835d90a0d"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2527 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2528 | ## <a name="SkPaint_Join"></a> Enum SkPaint::Join |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2529 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2530 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2531 | enum <a href="#SkPaint_Join">Join</a> { |
| 2532 | <a href="#SkPaint_kMiter_Join">kMiter Join</a>, |
| 2533 | <a href="#SkPaint_kRound_Join">kRound Join</a>, |
| 2534 | <a href="#SkPaint_kBevel_Join">kBevel Join</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2535 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2536 | <a href="#SkPaint_kLast_Join">kLast Join</a> = <a href="#SkPaint_kBevel_Join">kBevel Join</a>, |
| 2537 | <a href="#SkPaint_kDefault_Join">kDefault Join</a> = <a href="#SkPaint_kMiter_Join">kMiter Join</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2538 | }; |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 2539 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2540 | static constexpr int <a href="#SkPaint_kJoinCount">kJoinCount</a> = <a href="#SkPaint_kLast_Join">kLast Join</a> + 1;</pre> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2541 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2542 | <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] | 2543 | affects the four corners of a stroked rectangle, and the connected segments in a |
| 2544 | stroked path. |
| 2545 | |
| 2546 | Choose miter join to draw sharp corners. Choose round join to draw a circle with a |
| 2547 | radius equal to the stroke width on top of the corner. Choose bevel join to minimally |
| 2548 | connect the thick strokes. |
| 2549 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2550 | 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] | 2551 | not contain the actual join. For instance, a fill path constructed with round joins does |
| 2552 | not necessarily include circles at each connected segment. |
| 2553 | |
| 2554 | ### Constants |
| 2555 | |
| 2556 | <table> |
| 2557 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2558 | <td><a name="SkPaint_kMiter_Join"> <code><strong>SkPaint::kMiter_Join </strong></code> </a></td><td>0</td><td>Extends the outside corner to the extent allowed by <a href="#Miter_Limit">Miter Limit</a>. |
| 2559 | If the extension exceeds <a href="#Miter_Limit">Miter Limit</a>, <a href="#SkPaint_kBevel_Join">kBevel Join</a> is used instead.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2560 | </tr> |
| 2561 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2562 | <td><a name="SkPaint_kRound_Join"> <code><strong>SkPaint::kRound_Join </strong></code> </a></td><td>1</td><td>Adds a circle with a diameter of <a href="#Stroke_Width">Stroke Width</a> at the sharp corner.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2563 | </tr> |
| 2564 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2565 | <td><a name="SkPaint_kBevel_Join"> <code><strong>SkPaint::kBevel_Join </strong></code> </a></td><td>2</td><td>Connects the outside edges of the sharp corner.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2566 | </tr> |
| 2567 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2568 | <td><a name="SkPaint_kLast_Join"> <code><strong>SkPaint::kLast_Join </strong></code> </a></td><td>2</td><td>Equivalent to the largest value for <a href="#Stroke_Join">Stroke Join</a>.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2569 | </tr> |
| 2570 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2571 | <td><a name="SkPaint_kDefault_Join"> <code><strong>SkPaint::kDefault_Join </strong></code> </a></td><td>1</td><td>Equivalent to <a href="#SkPaint_kMiter_Join">kMiter Join</a>. |
| 2572 | <a href="#Stroke_Join">Stroke Join</a> is set to <a href="#SkPaint_kMiter_Join">kMiter Join</a> by default.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2573 | </tr> |
| 2574 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2575 | <td><a name="SkPaint_kJoinCount"> <code><strong>SkPaint::kJoinCount </strong></code> </a></td><td>3</td><td>The number of different <a href="#Stroke_Join">Stroke Join</a> values defined. |
| 2576 | May be used to verify that <a href="#Stroke_Join">Stroke Join</a> is a legal value.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2577 | </tr> |
| 2578 | </table> |
| 2579 | |
| 2580 | ### Example |
| 2581 | |
| 2582 | <div><fiddle-embed name="3b1aebacc21c1836a52876b9b0b3905e"></fiddle-embed></div> |
| 2583 | |
| 2584 | ### See Also |
| 2585 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2586 | <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] | 2587 | |
| 2588 | |
| 2589 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2590 | <a name="SkPaint_getStrokeJoin"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2591 | ## getStrokeJoin |
| 2592 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2593 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2594 | Join getStrokeJoin() const |
| 2595 | </pre> |
| 2596 | |
Cary Clark | 0c5f546 | 2017-12-15 11:21:51 -0500 | [diff] [blame] | 2597 | The geometry drawn at the corners of strokes. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2598 | |
| 2599 | ### Return Value |
| 2600 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2601 | 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] | 2602 | |
| 2603 | ### Example |
| 2604 | |
| 2605 | <div><fiddle-embed name="31bf751d0a8ddf176b871810820d8199"> |
| 2606 | |
| 2607 | #### Example Output |
| 2608 | |
| 2609 | ~~~~ |
| 2610 | kMiter_Join == default stroke join |
| 2611 | ~~~~ |
| 2612 | |
| 2613 | </fiddle-embed></div> |
| 2614 | |
| 2615 | ### See Also |
| 2616 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2617 | <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] | 2618 | |
| 2619 | --- |
| 2620 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2621 | <a name="SkPaint_setStrokeJoin"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2622 | ## setStrokeJoin |
| 2623 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2624 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2625 | void setStrokeJoin(Join join) |
| 2626 | </pre> |
| 2627 | |
Cary Clark | 0c5f546 | 2017-12-15 11:21:51 -0500 | [diff] [blame] | 2628 | The geometry drawn at the corners of strokes. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2629 | |
| 2630 | ### Parameters |
| 2631 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2632 | <table> <tr> <td><a name="SkPaint_setStrokeJoin_join"> <code><strong>join </strong></code> </a></td> <td> |
| 2633 | 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] | 2634 | otherwise, has no effect</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2635 | </tr> |
| 2636 | </table> |
| 2637 | |
| 2638 | ### Example |
| 2639 | |
| 2640 | <div><fiddle-embed name="48d963ad4286eddf680f9c511eb6da91"> |
| 2641 | |
| 2642 | #### Example Output |
| 2643 | |
| 2644 | ~~~~ |
| 2645 | kMiter_Join == paint.getStrokeJoin() |
| 2646 | ~~~~ |
| 2647 | |
| 2648 | </fiddle-embed></div> |
| 2649 | |
| 2650 | ### See Also |
| 2651 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2652 | <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] | 2653 | |
| 2654 | --- |
| 2655 | |
| 2656 | ### See Also |
| 2657 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2658 | <a href="#Miter_Limit">Miter Limit</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2659 | |
| 2660 | # <a name="Fill_Path"></a> Fill Path |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2661 | <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] | 2662 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2663 | 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 |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2664 | replaces the destination <a href="SkPath_Reference#Path">Path</a>. Otherwise, the source <a href="SkPath_Reference#Path">Path</a> is replaces the |
| 2665 | destination <a href="SkPath_Reference#Path">Path</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2666 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2667 | 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 |
| 2668 | 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] | 2669 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2670 | 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>, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2671 | 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>, |
| 2672 | 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] | 2673 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2674 | 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] | 2675 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2676 | 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> |
| 2677 | returns false since <a href="#Hairline">Hairline</a> has no filled equivalent. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2678 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2679 | <a name="SkPaint_getFillPath"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2680 | ## getFillPath |
| 2681 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2682 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 2683 | bool getFillPath(const SkPath& src, SkPath* dst, const SkRect* cullRect, SkScalar resScale = 1) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2684 | </pre> |
| 2685 | |
| 2686 | The filled equivalent of the stroked path. |
| 2687 | |
| 2688 | ### Parameters |
| 2689 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2690 | <table> <tr> <td><a name="SkPaint_getFillPath_src"> <code><strong>src </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2691 | <a href="SkPath_Reference#Path">Path</a> read to create a filled version</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2692 | </tr> <tr> <td><a name="SkPaint_getFillPath_dst"> <code><strong>dst </strong></code> </a></td> <td> |
| 2693 | 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> |
| 2694 | </tr> <tr> <td><a name="SkPaint_getFillPath_cullRect"> <code><strong>cullRect </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2695 | optional limit passed to <a href="undocumented#Path_Effect">Path Effect</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2696 | </tr> <tr> <td><a name="SkPaint_getFillPath_resScale"> <code><strong>resScale </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2697 | if > 1, increase precision, else if (0 < res < 1) reduce precision |
| 2698 | to favor speed and size</td> |
| 2699 | </tr> |
| 2700 | </table> |
| 2701 | |
| 2702 | ### Return Value |
| 2703 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2704 | true if the path represents <a href="#Style_Fill">Style Fill</a>, or false if it represents <a href="#Hairline">Hairline</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2705 | |
| 2706 | ### Example |
| 2707 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 2708 | <div><fiddle-embed name="cedd6233848198e1fca4d1e14816baaf"><div>A very small <a href="#Quad">Quad</a> stroke is turned into a filled path with increasing levels of precision. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2709 | At the lowest precision, the <a href="#Quad">Quad</a> stroke is approximated by a rectangle. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2710 | At the highest precision, the filled path has high fidelity compared to the original stroke.</div></fiddle-embed></div> |
| 2711 | |
| 2712 | --- |
| 2713 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2714 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2715 | bool getFillPath(const SkPath& src, SkPath* dst) const |
| 2716 | </pre> |
| 2717 | |
| 2718 | The filled equivalent of the stroked path. |
| 2719 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2720 | 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>. |
| 2721 | <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] | 2722 | |
| 2723 | ### Parameters |
| 2724 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2725 | <table> <tr> <td><a name="SkPaint_getFillPath_2_src"> <code><strong>src </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2726 | <a href="SkPath_Reference#Path">Path</a> read to create a filled version</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2727 | </tr> <tr> <td><a name="SkPaint_getFillPath_2_dst"> <code><strong>dst </strong></code> </a></td> <td> |
| 2728 | 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] | 2729 | </tr> |
| 2730 | </table> |
| 2731 | |
| 2732 | ### Return Value |
| 2733 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2734 | true if the path represents <a href="#Style_Fill">Style Fill</a>, or false if it represents <a href="#Hairline">Hairline</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2735 | |
| 2736 | ### Example |
| 2737 | |
| 2738 | <div><fiddle-embed name="e6d8ca0cc17e0b475bd54dd995825468"></fiddle-embed></div> |
| 2739 | |
| 2740 | --- |
| 2741 | |
| 2742 | ### See Also |
| 2743 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2744 | <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] | 2745 | |
| 2746 | # <a name="Shader_Methods"></a> Shader Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2747 | <a href="undocumented#Shader">Shader</a> defines the colors used when drawing a shape. |
| 2748 | <a href="undocumented#Shader">Shader</a> may be an image, a gradient, or a computed fill. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 2749 | If <a href="#Paint">Paint</a> has no <a href="undocumented#Shader">Shader</a>, then <a href="undocumented#Color">Color</a> fills the shape. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2750 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2751 | <a href="undocumented#Shader">Shader</a> is modulated by <a href="#Alpha">Color Alpha</a> component of <a href="undocumented#Color">Color</a>. |
| 2752 | If <a href="undocumented#Shader">Shader</a> object defines only <a href="#Alpha">Color Alpha</a>, then <a href="undocumented#Color">Color</a> modulated by <a href="#Alpha">Color Alpha</a> describes |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2753 | the fill. |
| 2754 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2755 | The drawn transparency can be modified without altering <a href="undocumented#Shader">Shader</a>, by changing <a href="#Alpha">Color Alpha</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2756 | |
| 2757 | ### Example |
| 2758 | |
| 2759 | <div><fiddle-embed name="c015dc2010c15e1c00b4f7330232b0f7"></fiddle-embed></div> |
| 2760 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2761 | If <a href="undocumented#Shader">Shader</a> generates only <a href="#Alpha">Color Alpha</a> then all components of <a href="undocumented#Color">Color</a> modulate the output. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2762 | |
| 2763 | ### Example |
| 2764 | |
| 2765 | <div><fiddle-embed name="9673be7720ba3adcdae42ddc1565b588"></fiddle-embed></div> |
| 2766 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2767 | <a name="SkPaint_getShader"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2768 | ## getShader |
| 2769 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2770 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2771 | SkShader* getShader() const |
| 2772 | </pre> |
| 2773 | |
| 2774 | Optional colors used when filling a path, such as a gradient. |
| 2775 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2776 | 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] | 2777 | |
| 2778 | ### Return Value |
| 2779 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2780 | <a href="undocumented#Shader">Shader</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2781 | |
| 2782 | ### Example |
| 2783 | |
| 2784 | <div><fiddle-embed name="09f15b9fd88882850da2d235eb86292f"> |
| 2785 | |
| 2786 | #### Example Output |
| 2787 | |
| 2788 | ~~~~ |
| 2789 | nullptr == shader |
| 2790 | nullptr != shader |
| 2791 | ~~~~ |
| 2792 | |
| 2793 | </fiddle-embed></div> |
| 2794 | |
| 2795 | --- |
| 2796 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2797 | <a name="SkPaint_refShader"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2798 | ## refShader |
| 2799 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2800 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2801 | sk_sp<SkShader> refShader() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2802 | </pre> |
| 2803 | |
| 2804 | Optional colors used when filling a path, such as a gradient. |
| 2805 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2806 | 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] | 2807 | |
| 2808 | ### Return Value |
| 2809 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2810 | <a href="undocumented#Shader">Shader</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2811 | |
| 2812 | ### Example |
| 2813 | |
| 2814 | <div><fiddle-embed name="53da0295972a418cbc9607bbb17feaa8"> |
| 2815 | |
| 2816 | #### Example Output |
| 2817 | |
| 2818 | ~~~~ |
| 2819 | shader unique: true |
| 2820 | shader unique: false |
| 2821 | ~~~~ |
| 2822 | |
| 2823 | </fiddle-embed></div> |
| 2824 | |
| 2825 | --- |
| 2826 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2827 | <a name="SkPaint_setShader"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2828 | ## setShader |
| 2829 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2830 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2831 | void setShader(sk_sp<SkShader> shader) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2832 | </pre> |
| 2833 | |
| 2834 | Optional colors used when filling a path, such as a gradient. |
| 2835 | |
Cary Clark | d0530ba | 2017-09-14 11:25:39 -0400 | [diff] [blame] | 2836 | 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>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 2837 | 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] | 2838 | |
| 2839 | ### Parameters |
| 2840 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2841 | <table> <tr> <td><a name="SkPaint_setShader_shader"> <code><strong>shader </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2842 | how geometry is filled with color; if nullptr, <a href="undocumented#Color">Color</a> is used instead</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2843 | </tr> |
| 2844 | </table> |
| 2845 | |
| 2846 | ### Example |
| 2847 | |
| 2848 | <div><fiddle-embed name="77e64d5bae9b1ba037fd99252bb4aa58"></fiddle-embed></div> |
| 2849 | |
| 2850 | --- |
| 2851 | |
| 2852 | # <a name="Color_Filter_Methods"></a> Color Filter Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2853 | <a href="undocumented#Color_Filter">Color Filter</a> alters the color used when drawing a shape. |
| 2854 | <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. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2855 | 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] | 2856 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2857 | The drawn transparency can be modified without altering <a href="undocumented#Color_Filter">Color Filter</a>, by changing <a href="#Alpha">Color Alpha</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2858 | |
| 2859 | ### Example |
| 2860 | |
| 2861 | <div><fiddle-embed name="5abde56ca2f89a18b8e231abd1b57c56"></fiddle-embed></div> |
| 2862 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2863 | <a name="SkPaint_getColorFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2864 | ## getColorFilter |
| 2865 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2866 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2867 | SkColorFilter* getColorFilter() const |
| 2868 | </pre> |
| 2869 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2870 | Returns <a href="undocumented#Color_Filter">Color Filter</a> if set, or nullptr. |
| 2871 | 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] | 2872 | |
| 2873 | ### Return Value |
| 2874 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2875 | <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] | 2876 | |
| 2877 | ### Example |
| 2878 | |
| 2879 | <div><fiddle-embed name="093bdc627d6b59002670fd290931f6c9"> |
| 2880 | |
| 2881 | #### Example Output |
| 2882 | |
| 2883 | ~~~~ |
| 2884 | nullptr == color filter |
| 2885 | nullptr != color filter |
| 2886 | ~~~~ |
| 2887 | |
| 2888 | </fiddle-embed></div> |
| 2889 | |
| 2890 | --- |
| 2891 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2892 | <a name="SkPaint_refColorFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2893 | ## refColorFilter |
| 2894 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2895 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2896 | sk_sp<SkColorFilter> refColorFilter() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2897 | </pre> |
| 2898 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2899 | Returns <a href="undocumented#Color_Filter">Color Filter</a> if set, or nullptr. |
| 2900 | 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] | 2901 | |
| 2902 | ### Return Value |
| 2903 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2904 | <a href="undocumented#Color_Filter">Color Filter</a> if set, or nullptr |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2905 | |
| 2906 | ### Example |
| 2907 | |
| 2908 | <div><fiddle-embed name="b588c95fa4c86ddbc4b0546762f08297"> |
| 2909 | |
| 2910 | #### Example Output |
| 2911 | |
| 2912 | ~~~~ |
| 2913 | color filter unique: true |
| 2914 | color filter unique: false |
| 2915 | ~~~~ |
| 2916 | |
| 2917 | </fiddle-embed></div> |
| 2918 | |
| 2919 | --- |
| 2920 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2921 | <a name="SkPaint_setColorFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2922 | ## setColorFilter |
| 2923 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2924 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 2925 | void setColorFilter(sk_sp<SkColorFilter> colorFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2926 | </pre> |
| 2927 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 2928 | Sets <a href="undocumented#Color_Filter">Color Filter</a> to filter, decreasing <a href="undocumented#Reference_Count">Reference Count</a> of the previous |
| 2929 | <a href="undocumented#Color_Filter">Color Filter</a>. Pass nullptr to clear <a href="undocumented#Color_Filter">Color Filter</a>. |
| 2930 | |
| 2931 | Increments filter <a href="undocumented#Reference_Count">Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2932 | |
| 2933 | ### Parameters |
| 2934 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2935 | <table> <tr> <td><a name="SkPaint_setColorFilter_colorFilter"> <code><strong>colorFilter </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2936 | <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] | 2937 | </tr> |
| 2938 | </table> |
| 2939 | |
| 2940 | ### Example |
| 2941 | |
| 2942 | <div><fiddle-embed name="c7b786dc9b3501cd0eaba47494b6fa31"></fiddle-embed></div> |
| 2943 | |
| 2944 | --- |
| 2945 | |
| 2946 | # <a name="Blend_Mode_Methods"></a> Blend Mode Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2947 | <a href="undocumented#Blend_Mode">Blend Mode</a> describes how <a href="undocumented#Color">Color</a> combines with the destination color. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2948 | The default setting, <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a>, draws the source color |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2949 | over the destination color. |
| 2950 | |
| 2951 | ### Example |
| 2952 | |
| 2953 | <div><fiddle-embed name="73092d4d06faecea3c204d852a4dd8a8"></fiddle-embed></div> |
| 2954 | |
| 2955 | ### See Also |
| 2956 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2957 | <a href="undocumented#Blend_Mode">Blend Mode</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2958 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2959 | <a name="SkPaint_getBlendMode"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2960 | ## getBlendMode |
| 2961 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2962 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2963 | SkBlendMode getBlendMode() const |
| 2964 | </pre> |
| 2965 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 2966 | Returns <a href="undocumented#Blend_Mode">Blend Mode</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2967 | By default, returns <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2968 | |
| 2969 | ### Return Value |
| 2970 | |
| 2971 | mode used to combine source color with destination color |
| 2972 | |
| 2973 | ### Example |
| 2974 | |
| 2975 | <div><fiddle-embed name="4ec1864b8203d52c0810e8605092f45c"> |
| 2976 | |
| 2977 | #### Example Output |
| 2978 | |
| 2979 | ~~~~ |
| 2980 | kSrcOver == getBlendMode |
| 2981 | kSrcOver != getBlendMode |
| 2982 | ~~~~ |
| 2983 | |
| 2984 | </fiddle-embed></div> |
| 2985 | |
| 2986 | --- |
| 2987 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 2988 | <a name="SkPaint_isSrcOver"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2989 | ## isSrcOver |
| 2990 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 2991 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2992 | bool isSrcOver() const |
| 2993 | </pre> |
| 2994 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2995 | Returns true if <a href="undocumented#Blend_Mode">Blend Mode</a> is <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a>, the default. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 2996 | |
| 2997 | ### Return Value |
| 2998 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 2999 | true if <a href="undocumented#Blend_Mode">Blend Mode</a> is <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3000 | |
| 3001 | ### Example |
| 3002 | |
| 3003 | <div><fiddle-embed name="257c9473db7a2b3a0fb2b9e2431e59a6"> |
| 3004 | |
| 3005 | #### Example Output |
| 3006 | |
| 3007 | ~~~~ |
| 3008 | isSrcOver == true |
| 3009 | isSrcOver != true |
| 3010 | ~~~~ |
| 3011 | |
| 3012 | </fiddle-embed></div> |
| 3013 | |
| 3014 | --- |
| 3015 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3016 | <a name="SkPaint_setBlendMode"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3017 | ## setBlendMode |
| 3018 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3019 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3020 | void setBlendMode(SkBlendMode mode) |
| 3021 | </pre> |
| 3022 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3023 | 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] | 3024 | Does not check for valid input. |
| 3025 | |
| 3026 | ### Parameters |
| 3027 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3028 | <table> <tr> <td><a name="SkPaint_setBlendMode_mode"> <code><strong>mode </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3029 | <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] | 3030 | </tr> |
| 3031 | </table> |
| 3032 | |
| 3033 | ### Example |
| 3034 | |
| 3035 | <div><fiddle-embed name="257c9473db7a2b3a0fb2b9e2431e59a6"> |
| 3036 | |
| 3037 | #### Example Output |
| 3038 | |
| 3039 | ~~~~ |
| 3040 | isSrcOver == true |
| 3041 | isSrcOver != true |
| 3042 | ~~~~ |
| 3043 | |
| 3044 | </fiddle-embed></div> |
| 3045 | |
| 3046 | --- |
| 3047 | |
| 3048 | # <a name="Path_Effect_Methods"></a> Path Effect Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3049 | <a href="undocumented#Path_Effect">Path Effect</a> modifies the path geometry before drawing it. |
| 3050 | <a href="undocumented#Path_Effect">Path Effect</a> may implement dashing, custom fill effects and custom stroke effects. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3051 | 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] | 3052 | |
| 3053 | ### Example |
| 3054 | |
| 3055 | <div><fiddle-embed name="8cf5684b187d60f09e11c4a48993ea39"></fiddle-embed></div> |
| 3056 | |
| 3057 | ### See Also |
| 3058 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3059 | <a href="undocumented#Path_Effect">Path Effect</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3060 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3061 | <a name="SkPaint_getPathEffect"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3062 | ## getPathEffect |
| 3063 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3064 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3065 | SkPathEffect* getPathEffect() const |
| 3066 | </pre> |
| 3067 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3068 | Returns <a href="undocumented#Path_Effect">Path Effect</a> if set, or nullptr. |
| 3069 | 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] | 3070 | |
| 3071 | ### Return Value |
| 3072 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3073 | <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] | 3074 | |
| 3075 | ### Example |
| 3076 | |
| 3077 | <div><fiddle-embed name="211a1b14bfa6c4332082c8eab4fbc5fd"> |
| 3078 | |
| 3079 | #### Example Output |
| 3080 | |
| 3081 | ~~~~ |
| 3082 | nullptr == path effect |
| 3083 | nullptr != path effect |
| 3084 | ~~~~ |
| 3085 | |
| 3086 | </fiddle-embed></div> |
| 3087 | |
| 3088 | --- |
| 3089 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3090 | <a name="SkPaint_refPathEffect"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3091 | ## refPathEffect |
| 3092 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3093 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3094 | sk_sp<SkPathEffect> refPathEffect() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3095 | </pre> |
| 3096 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3097 | Returns <a href="undocumented#Path_Effect">Path Effect</a> if set, or nullptr. |
| 3098 | 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] | 3099 | |
| 3100 | ### Return Value |
| 3101 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3102 | <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] | 3103 | |
| 3104 | ### Example |
| 3105 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3106 | <div><fiddle-embed name="f56039b94c702c2704c8c5100e623aca"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3107 | |
| 3108 | #### Example Output |
| 3109 | |
| 3110 | ~~~~ |
| 3111 | path effect unique: true |
| 3112 | path effect unique: false |
| 3113 | ~~~~ |
| 3114 | |
| 3115 | </fiddle-embed></div> |
| 3116 | |
| 3117 | --- |
| 3118 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3119 | <a name="SkPaint_setPathEffect"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3120 | ## setPathEffect |
| 3121 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3122 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3123 | void setPathEffect(sk_sp<SkPathEffect> pathEffect) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3124 | </pre> |
| 3125 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3126 | 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 |
| 3127 | <a href="undocumented#Path_Effect">Path Effect</a>. Pass nullptr to leave the path geometry unaltered. |
| 3128 | |
| 3129 | 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] | 3130 | |
| 3131 | ### Parameters |
| 3132 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3133 | <table> <tr> <td><a name="SkPaint_setPathEffect_pathEffect"> <code><strong>pathEffect </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3134 | 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] | 3135 | </tr> |
| 3136 | </table> |
| 3137 | |
| 3138 | ### Example |
| 3139 | |
| 3140 | <div><fiddle-embed name="52dd55074ca0b7d520d04e750ca2a0d7"></fiddle-embed></div> |
| 3141 | |
| 3142 | --- |
| 3143 | |
| 3144 | # <a name="Mask_Filter_Methods"></a> Mask Filter Methods |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 3145 | <a href="undocumented#Mask_Filter">Mask Filter</a> uses coverage of the shape drawn to create <a href="undocumented#Mask_Alpha">Mask Alpha</a>. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3146 | <a href="undocumented#Mask_Filter">Mask Filter</a> operates at a lower level than <a href="undocumented#Rasterizer">Rasterizer</a>; <a href="undocumented#Mask_Filter">Mask Filter</a> takes a <a href="undocumented#Mask">Mask</a>, |
| 3147 | and returns a <a href="undocumented#Mask">Mask</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3148 | |
| 3149 | <a href="undocumented#Mask_Filter">Mask Filter</a> may change the geometry and transparency of the shape, such as |
| 3150 | 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 |
| 3151 | modifying the draw. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3152 | |
| 3153 | ### Example |
| 3154 | |
| 3155 | <div><fiddle-embed name="320b04ea1e1291d49f1e61994a0410fe"></fiddle-embed></div> |
| 3156 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3157 | <a name="SkPaint_getMaskFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3158 | ## getMaskFilter |
| 3159 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3160 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3161 | SkMaskFilter* getMaskFilter() const |
| 3162 | </pre> |
| 3163 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3164 | Returns <a href="undocumented#Mask_Filter">Mask Filter</a> if set, or nullptr. |
| 3165 | 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] | 3166 | |
| 3167 | ### Return Value |
| 3168 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3169 | <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] | 3170 | |
| 3171 | ### Example |
| 3172 | |
| 3173 | <div><fiddle-embed name="8cd53ece8fc83e4560599ace094b0f16"> |
| 3174 | |
| 3175 | #### Example Output |
| 3176 | |
| 3177 | ~~~~ |
| 3178 | nullptr == mask filter |
| 3179 | nullptr != mask filter |
| 3180 | ~~~~ |
| 3181 | |
| 3182 | </fiddle-embed></div> |
| 3183 | |
| 3184 | --- |
| 3185 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3186 | <a name="SkPaint_refMaskFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3187 | ## refMaskFilter |
| 3188 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3189 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3190 | sk_sp<SkMaskFilter> refMaskFilter() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3191 | </pre> |
| 3192 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3193 | 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] | 3194 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3195 | 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] | 3196 | |
| 3197 | ### Return Value |
| 3198 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3199 | <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] | 3200 | |
| 3201 | ### Example |
| 3202 | |
| 3203 | <div><fiddle-embed name="35a397dce5d44658ee4e9e9dfb9fee22"> |
| 3204 | |
| 3205 | #### Example Output |
| 3206 | |
| 3207 | ~~~~ |
| 3208 | mask filter unique: true |
| 3209 | mask filter unique: false |
| 3210 | ~~~~ |
| 3211 | |
| 3212 | </fiddle-embed></div> |
| 3213 | |
| 3214 | --- |
| 3215 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3216 | <a name="SkPaint_setMaskFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3217 | ## setMaskFilter |
| 3218 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3219 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3220 | void setMaskFilter(sk_sp<SkMaskFilter> maskFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3221 | </pre> |
| 3222 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3223 | 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 |
| 3224 | <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 |
| 3225 | <a href="undocumented#Mask_Alpha">Mask Alpha</a> unaltered. |
| 3226 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3227 | Does not affect <a href="undocumented#Rasterizer">Rasterizer</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3228 | 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] | 3229 | |
| 3230 | ### Parameters |
| 3231 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3232 | <table> <tr> <td><a name="SkPaint_setMaskFilter_maskFilter"> <code><strong>maskFilter </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3233 | modifies clipping mask generated from drawn geometry</td> |
| 3234 | </tr> |
| 3235 | </table> |
| 3236 | |
| 3237 | ### Example |
| 3238 | |
| 3239 | <div><fiddle-embed name="62c5a826692f85c3de3bab65e9e97aa9"></fiddle-embed></div> |
| 3240 | |
| 3241 | --- |
| 3242 | |
| 3243 | # <a name="Typeface_Methods"></a> Typeface Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3244 | <a href="undocumented#Typeface">Typeface</a> identifies the font used when drawing and measuring text. |
| 3245 | <a href="undocumented#Typeface">Typeface</a> may be specified by name, from a file, or from a data stream. |
| 3246 | 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] | 3247 | implementation. |
| 3248 | |
| 3249 | ### Example |
| 3250 | |
Ben Wagner | 700ff17 | 2017-11-08 15:37:22 -0500 | [diff] [blame] | 3251 | <div><fiddle-embed name="1a7a5062725139760962582f599f1b97"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3252 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3253 | <a name="SkPaint_getTypeface"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3254 | ## getTypeface |
| 3255 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3256 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3257 | SkTypeface* getTypeface() const |
| 3258 | </pre> |
| 3259 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3260 | Returns <a href="undocumented#Typeface">Typeface</a> if set, or nullptr. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3261 | 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] | 3262 | |
| 3263 | ### Return Value |
| 3264 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3265 | <a href="undocumented#Typeface">Typeface</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3266 | |
| 3267 | ### Example |
| 3268 | |
Cary Clark | 71961fb | 2018-01-05 14:21:59 -0500 | [diff] [blame^] | 3269 | <div><fiddle-embed name="5ce718e5a184baaac80e7098d7dad67b"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3270 | |
| 3271 | #### Example Output |
| 3272 | |
| 3273 | ~~~~ |
| 3274 | nullptr == typeface |
| 3275 | nullptr != typeface |
| 3276 | ~~~~ |
| 3277 | |
| 3278 | </fiddle-embed></div> |
| 3279 | |
| 3280 | --- |
| 3281 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3282 | <a name="SkPaint_refTypeface"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3283 | ## refTypeface |
| 3284 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3285 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3286 | sk_sp<SkTypeface> refTypeface() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3287 | </pre> |
| 3288 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3289 | 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] | 3290 | |
| 3291 | ### Return Value |
| 3292 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3293 | <a href="undocumented#Typeface">Typeface</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3294 | |
| 3295 | ### Example |
| 3296 | |
Cary Clark | 71961fb | 2018-01-05 14:21:59 -0500 | [diff] [blame^] | 3297 | <div><fiddle-embed name="4bf8ed109c4b46d8a05c8b7763c1982c"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3298 | |
| 3299 | #### Example Output |
| 3300 | |
| 3301 | ~~~~ |
| 3302 | typeface1 != typeface2 |
| 3303 | typeface1 == typeface2 |
| 3304 | ~~~~ |
| 3305 | |
| 3306 | </fiddle-embed></div> |
| 3307 | |
| 3308 | --- |
| 3309 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3310 | <a name="SkPaint_setTypeface"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3311 | ## setTypeface |
| 3312 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3313 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3314 | void setTypeface(sk_sp<SkTypeface> typeface) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3315 | </pre> |
| 3316 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3317 | 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>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3318 | Pass nullptr to clear <a href="undocumented#Typeface">Typeface</a> and use the default <a href="#SkPaint_setTypeface_typeface">typeface</a>. Increments |
| 3319 | <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] | 3320 | |
| 3321 | ### Parameters |
| 3322 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3323 | <table> <tr> <td><a name="SkPaint_setTypeface_typeface"> <code><strong>typeface </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3324 | font and style used to draw text</td> |
| 3325 | </tr> |
| 3326 | </table> |
| 3327 | |
| 3328 | ### Example |
| 3329 | |
Cary Clark | 71961fb | 2018-01-05 14:21:59 -0500 | [diff] [blame^] | 3330 | <div><fiddle-embed name="0e6fbb7773cd925b274552f4cd1abef2"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3331 | |
| 3332 | --- |
| 3333 | |
| 3334 | # <a name="Rasterizer_Methods"></a> Rasterizer Methods |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3335 | <a href="undocumented#Rasterizer">Rasterizer</a> controls how shapes are converted to <a href="undocumented#Mask_Alpha">Mask Alpha</a>. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3336 | <a href="undocumented#Rasterizer">Rasterizer</a> operates at a higher level than <a href="undocumented#Mask_Filter">Mask Filter</a>; <a href="undocumented#Rasterizer">Rasterizer</a> takes a <a href="SkPath_Reference#Path">Path</a>, |
| 3337 | and returns a <a href="undocumented#Mask">Mask</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3338 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3339 | <a href="undocumented#Rasterizer">Rasterizer</a> may change the geometry and transparency of the shape, such as |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3340 | creating a shadow effect. <a href="undocumented#Rasterizer">Rasterizer</a> forms the base of <a href="#Layer">Rasterizer Layer</a>, which |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3341 | creates effects like embossing and outlining. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3342 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3343 | <a href="undocumented#Rasterizer">Rasterizer</a> 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="#Arc">Arcs</a>, <a href="#Circle">Circles</a>, <a href="#Oval">Ovals</a>, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3344 | <a href="SkPath_Reference#Path">Path</a>, and <a href="undocumented#Text">Text</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3345 | |
| 3346 | ### Example |
| 3347 | |
| 3348 | <div><fiddle-embed name="e63f8a50996699342a14c6e54d684108"></fiddle-embed></div> |
| 3349 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3350 | <a name="SkPaint_getRasterizer"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3351 | ## getRasterizer |
| 3352 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3353 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3354 | SkRasterizer* getRasterizer() const |
| 3355 | </pre> |
| 3356 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3357 | Returns <a href="undocumented#Rasterizer">Rasterizer</a> if set, or nullptr. |
| 3358 | Does not alter <a href="undocumented#Rasterizer">Rasterizer</a> <a href="undocumented#Reference_Count">Reference Count</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3359 | |
| 3360 | ### Return Value |
| 3361 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3362 | <a href="undocumented#Rasterizer">Rasterizer</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3363 | |
| 3364 | ### Example |
| 3365 | |
| 3366 | <div><fiddle-embed name="0707d407c3a14388b107af8ae5873e55"> |
| 3367 | |
| 3368 | #### Example Output |
| 3369 | |
| 3370 | ~~~~ |
| 3371 | nullptr == rasterizer |
| 3372 | nullptr != rasterizer |
| 3373 | ~~~~ |
| 3374 | |
| 3375 | </fiddle-embed></div> |
| 3376 | |
| 3377 | --- |
| 3378 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3379 | <a name="SkPaint_refRasterizer"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3380 | ## refRasterizer |
| 3381 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3382 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3383 | sk_sp<SkRasterizer> refRasterizer() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3384 | </pre> |
| 3385 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3386 | Returns <a href="undocumented#Rasterizer">Rasterizer</a> if set, or nullptr. |
| 3387 | Increases <a href="undocumented#Rasterizer">Rasterizer</a> <a href="undocumented#Reference_Count">Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3388 | |
| 3389 | ### Return Value |
| 3390 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3391 | <a href="undocumented#Rasterizer">Rasterizer</a> if previously set, nullptr otherwise |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3392 | |
| 3393 | ### Example |
| 3394 | |
| 3395 | <div><fiddle-embed name="c0855ce19a33cb7e5747750ef341b7b3"> |
| 3396 | |
| 3397 | #### Example Output |
| 3398 | |
| 3399 | ~~~~ |
| 3400 | rasterizer unique: true |
| 3401 | rasterizer unique: false |
| 3402 | ~~~~ |
| 3403 | |
| 3404 | </fiddle-embed></div> |
| 3405 | |
| 3406 | --- |
| 3407 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3408 | <a name="SkPaint_setRasterizer"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3409 | ## setRasterizer |
| 3410 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3411 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3412 | void setRasterizer(sk_sp<SkRasterizer> rasterizer) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3413 | </pre> |
| 3414 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3415 | Sets <a href="undocumented#Rasterizer">Rasterizer</a> to <a href="#SkPaint_setRasterizer_rasterizer">rasterizer</a>, decreasing <a href="undocumented#Reference_Count">Reference Count</a> of the previous |
| 3416 | <a href="undocumented#Rasterizer">Rasterizer</a>. Pass nullptr to clear <a href="undocumented#Rasterizer">Rasterizer</a> and leave <a href="undocumented#Rasterizer">Rasterizer</a> effect on |
| 3417 | <a href="undocumented#Mask_Alpha">Mask Alpha</a> unaltered. |
| 3418 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3419 | Does not affect <a href="undocumented#Mask_Filter">Mask Filter</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3420 | Increments <a href="#SkPaint_setRasterizer_rasterizer">rasterizer</a> <a href="undocumented#Reference_Count">Reference Count</a> by one. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3421 | |
| 3422 | ### Parameters |
| 3423 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3424 | <table> <tr> <td><a name="SkPaint_setRasterizer_rasterizer"> <code><strong>rasterizer </strong></code> </a></td> <td> |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3425 | how geometry is converted to <a href="undocumented#Mask_Alpha">Mask Alpha</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3426 | </tr> |
| 3427 | </table> |
| 3428 | |
| 3429 | ### Example |
| 3430 | |
| 3431 | <div><fiddle-embed name="aec8ed9296c1628073086a33039f62b7"></fiddle-embed></div> |
| 3432 | |
| 3433 | --- |
| 3434 | |
| 3435 | # <a name="Image_Filter_Methods"></a> Image Filter Methods |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3436 | <a href="undocumented#Image_Filter">Image Filter</a> operates on the pixel representation of the shape, as modified by <a href="#Paint">Paint</a> |
| 3437 | with <a href="undocumented#Blend_Mode">Blend Mode</a> set to <a href="#SkBlendMode_kSrcOver">SkBlendMode::kSrcOver</a>. <a href="undocumented#Image_Filter">Image Filter</a> creates a new bitmap, |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3438 | 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] | 3439 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3440 | <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> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 3441 | can operate on all channels of <a href="undocumented#Color">Color</a>, while <a href="undocumented#Mask_Filter">Mask Filter</a> generates <a href="#Alpha">Alpha</a> only. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3442 | <a href="undocumented#Image_Filter">Image Filter</a> operates independently of and can be used in combination with |
| 3443 | <a href="undocumented#Mask_Filter">Mask Filter</a> and <a href="undocumented#Rasterizer">Rasterizer</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3444 | |
| 3445 | ### Example |
| 3446 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3447 | <div><fiddle-embed name="0b2eec148d6397d6231e1fa0b3d1496d"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3448 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3449 | <a name="SkPaint_getImageFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3450 | ## getImageFilter |
| 3451 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3452 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3453 | SkImageFilter* getImageFilter() const |
| 3454 | </pre> |
| 3455 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3456 | Returns <a href="undocumented#Image_Filter">Image Filter</a> if set, or nullptr. |
| 3457 | 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] | 3458 | |
| 3459 | ### Return Value |
| 3460 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3461 | <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] | 3462 | |
| 3463 | ### Example |
| 3464 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3465 | <div><fiddle-embed name="7b8118ff57fcb84e6bc82380d155b62e"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3466 | |
| 3467 | #### Example Output |
| 3468 | |
| 3469 | ~~~~ |
| 3470 | nullptr == image filter |
| 3471 | nullptr != image filter |
| 3472 | ~~~~ |
| 3473 | |
| 3474 | </fiddle-embed></div> |
| 3475 | |
| 3476 | --- |
| 3477 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3478 | <a name="SkPaint_refImageFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3479 | ## refImageFilter |
| 3480 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3481 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3482 | sk_sp<SkImageFilter> refImageFilter() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3483 | </pre> |
| 3484 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3485 | Returns <a href="undocumented#Image_Filter">Image Filter</a> if set, or nullptr. |
| 3486 | 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] | 3487 | |
| 3488 | ### Return Value |
| 3489 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3490 | <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] | 3491 | |
| 3492 | ### Example |
| 3493 | |
| 3494 | <div><fiddle-embed name="13f09088b569251547107d14ae989dc1"> |
| 3495 | |
| 3496 | #### Example Output |
| 3497 | |
| 3498 | ~~~~ |
| 3499 | image filter unique: true |
| 3500 | image filter unique: false |
| 3501 | ~~~~ |
| 3502 | |
| 3503 | </fiddle-embed></div> |
| 3504 | |
| 3505 | --- |
| 3506 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3507 | <a name="SkPaint_setImageFilter"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3508 | ## setImageFilter |
| 3509 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3510 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3511 | void setImageFilter(sk_sp<SkImageFilter> imageFilter) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3512 | </pre> |
| 3513 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3514 | 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 |
| 3515 | <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] | 3516 | on drawing. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3517 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3518 | Does not affect <a href="undocumented#Rasterizer">Rasterizer</a> or <a href="undocumented#Mask_Filter">Mask Filter</a>. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3519 | 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] | 3520 | |
| 3521 | ### Parameters |
| 3522 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3523 | <table> <tr> <td><a name="SkPaint_setImageFilter_imageFilter"> <code><strong>imageFilter </strong></code> </a></td> <td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3524 | 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] | 3525 | </tr> |
| 3526 | </table> |
| 3527 | |
| 3528 | ### Example |
| 3529 | |
| 3530 | <div><fiddle-embed name="6679d6e4ec632715ee03e68391bd7f9a"></fiddle-embed></div> |
| 3531 | |
| 3532 | --- |
| 3533 | |
| 3534 | # <a name="Draw_Looper_Methods"></a> Draw Looper Methods |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3535 | <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] | 3536 | to another to construct the draw. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3537 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3538 | <a href="undocumented#Draw_Looper">Draw Looper</a> draws one or more times, modifying the canvas and paint each time. |
| 3539 | <a href="undocumented#Draw_Looper">Draw Looper</a> may be used to draw multiple colors or create a colored shadow. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3540 | 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] | 3541 | |
| 3542 | ### Example |
| 3543 | |
| 3544 | <div><fiddle-embed name="84ec12a36e50df5ac565cc7a75ffbe9f"></fiddle-embed></div> |
| 3545 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3546 | <a name="SkPaint_getDrawLooper"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3547 | ## getDrawLooper |
| 3548 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3549 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3550 | SkDrawLooper* getDrawLooper() const |
| 3551 | </pre> |
| 3552 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3553 | Returns <a href="undocumented#Draw_Looper">Draw Looper</a> if set, or nullptr. |
| 3554 | 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] | 3555 | |
| 3556 | ### Return Value |
| 3557 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3558 | <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] | 3559 | |
| 3560 | ### Example |
| 3561 | |
| 3562 | <div><fiddle-embed name="af4c5acc7a91e7f23c2af48018903ad4"> |
| 3563 | |
| 3564 | #### Example Output |
| 3565 | |
| 3566 | ~~~~ |
| 3567 | nullptr == draw looper |
| 3568 | nullptr != draw looper |
| 3569 | ~~~~ |
| 3570 | |
| 3571 | </fiddle-embed></div> |
| 3572 | |
| 3573 | --- |
| 3574 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3575 | <a name="SkPaint_refDrawLooper"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3576 | ## refDrawLooper |
| 3577 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3578 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3579 | sk_sp<SkDrawLooper> refDrawLooper() const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3580 | </pre> |
| 3581 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3582 | Returns <a href="undocumented#Draw_Looper">Draw Looper</a> if set, or nullptr. |
| 3583 | 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] | 3584 | |
| 3585 | ### Return Value |
| 3586 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3587 | <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] | 3588 | |
| 3589 | ### Example |
| 3590 | |
| 3591 | <div><fiddle-embed name="2a3782c33f04ed17a725d0e449c6f7c3"> |
| 3592 | |
| 3593 | #### Example Output |
| 3594 | |
| 3595 | ~~~~ |
| 3596 | draw looper unique: true |
| 3597 | draw looper unique: false |
| 3598 | ~~~~ |
| 3599 | |
| 3600 | </fiddle-embed></div> |
| 3601 | |
| 3602 | --- |
| 3603 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3604 | <a name="SkPaint_getLooper"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3605 | ## getLooper |
| 3606 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3607 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3608 | SkDrawLooper* getLooper() const |
| 3609 | </pre> |
| 3610 | |
| 3611 | Deprecated. |
| 3612 | |
| 3613 | (see bug.skia.org/6259) |
| 3614 | |
| 3615 | ### Return Value |
| 3616 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3617 | <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] | 3618 | |
| 3619 | --- |
| 3620 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3621 | <a name="SkPaint_setDrawLooper"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3622 | ## setDrawLooper |
| 3623 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3624 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3625 | void setDrawLooper(sk_sp<SkDrawLooper> drawLooper) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3626 | </pre> |
| 3627 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3628 | 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 |
| 3629 | <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 |
| 3630 | drawing unaltered. |
| 3631 | |
| 3632 | 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] | 3633 | |
| 3634 | ### Parameters |
| 3635 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3636 | <table> <tr> <td><a name="SkPaint_setDrawLooper_drawLooper"> <code><strong>drawLooper </strong></code> </a></td> <td> |
Cary Clark | a523d2d | 2017-08-30 08:58:10 -0400 | [diff] [blame] | 3637 | 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] | 3638 | </tr> |
| 3639 | </table> |
| 3640 | |
| 3641 | ### Example |
| 3642 | |
| 3643 | <div><fiddle-embed name="bf10f838b330f0a3a3266d42ea68a638"></fiddle-embed></div> |
| 3644 | |
| 3645 | --- |
| 3646 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3647 | <a name="SkPaint_setLooper"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3648 | ## setLooper |
| 3649 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3650 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 3651 | void setLooper(sk_sp<SkDrawLooper> drawLooper) |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3652 | </pre> |
| 3653 | |
| 3654 | Deprecated. |
| 3655 | |
| 3656 | (see bug.skia.org/6259) |
| 3657 | |
| 3658 | ### Parameters |
| 3659 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3660 | <table> <tr> <td><a name="SkPaint_setLooper_drawLooper"> <code><strong>drawLooper </strong></code> </a></td> <td> |
| 3661 | sets <a href="undocumented#Draw_Looper">Draw Looper</a> to <a href="#SkPaint_setLooper_drawLooper">drawLooper</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3662 | </tr> |
| 3663 | |
| 3664 | --- |
| 3665 | |
| 3666 | </table> |
| 3667 | |
| 3668 | # <a name="Text_Align"></a> Text Align |
| 3669 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3670 | ## <a name="SkPaint_Align"></a> Enum SkPaint::Align |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3671 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3672 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3673 | enum <a href="#SkPaint_Align">Align</a> { |
| 3674 | <a href="#SkPaint_kLeft_Align">kLeft Align</a>, |
| 3675 | <a href="#SkPaint_kCenter_Align">kCenter Align</a>, |
| 3676 | <a href="#SkPaint_kRight_Align">kRight Align</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3677 | };</pre> |
| 3678 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3679 | <a href="#SkPaint_Align">Align</a> adjusts the text relative to the text position. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 3680 | <a href="#SkPaint_Align">Align</a> affects <a href="#Glyph">Glyphs</a> drawn with: <a href="#SkCanvas_drawText">SkCanvas::drawText</a>, <a href="#SkCanvas_drawPosText">SkCanvas::drawPosText</a>, |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3681 | <a href="#SkCanvas_drawPosTextH">SkCanvas::drawPosTextH</a>, <a href="#SkCanvas_drawTextOnPath">SkCanvas::drawTextOnPath</a>, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3682 | <a href="#SkCanvas_drawTextOnPathHV">SkCanvas::drawTextOnPathHV</a>, <a href="#SkCanvas_drawTextRSXform">SkCanvas::drawTextRSXform</a>, <a href="#SkCanvas_drawTextBlob">SkCanvas::drawTextBlob</a>, |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3683 | and <a href="#SkCanvas_drawString">SkCanvas::drawString</a>; |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 3684 | as well as calls that place text <a href="#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] | 3685 | |
| 3686 | The text position is set by the font for both horizontal and vertical text. |
| 3687 | Typically, for horizontal text, the position is to the left side of the glyph on the |
| 3688 | base line; and for vertical text, the position is the horizontal center of the glyph |
| 3689 | at the caps height. |
| 3690 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3691 | <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] | 3692 | using the metrics returned by the font. |
| 3693 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3694 | <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] | 3695 | |
| 3696 | ### Constants |
| 3697 | |
| 3698 | <table> |
| 3699 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3700 | <td><a name="SkPaint_kLeft_Align"> <code><strong>SkPaint::kLeft_Align </strong></code> </a></td><td>0</td><td>Leaves the glyph at the position computed by the font offset by the text position.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3701 | </tr> |
| 3702 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3703 | <td><a name="SkPaint_kCenter_Align"> <code><strong>SkPaint::kCenter_Align </strong></code> </a></td><td>1</td><td>Moves the glyph half its width if <a href="#SkPaint_Flags">Flags</a> has <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> clear, and |
| 3704 | half its height if <a href="#SkPaint_Flags">Flags</a> has <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> set.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3705 | </tr> |
| 3706 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3707 | <td><a name="SkPaint_kRight_Align"> <code><strong>SkPaint::kRight_Align </strong></code> </a></td><td>2</td><td>Moves the glyph by its width if <a href="#SkPaint_Flags">Flags</a> has <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> clear, |
| 3708 | and by its height if <a href="#SkPaint_Flags">Flags</a> has <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> set.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3709 | </tr> |
| 3710 | |
| 3711 | </table> |
| 3712 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3713 | ## <a name="SkPaint__anonymous_2"></a> Enum SkPaint::_anonymous_2 |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3714 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3715 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3716 | enum { |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3717 | <a href="#SkPaint_kAlignCount">kAlignCount</a> = 3, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3718 | };</pre> |
| 3719 | |
| 3720 | ### Constants |
| 3721 | |
| 3722 | <table> |
| 3723 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3724 | <td><a name="SkPaint_kAlignCount"> <code><strong>SkPaint::kAlignCount </strong></code> </a></td><td>3</td><td>The number of different <a href="#Text_Align">Text Align</a> values defined.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3725 | </tr> |
| 3726 | |
| 3727 | </table> |
| 3728 | |
| 3729 | ### Example |
| 3730 | |
| 3731 | <div><fiddle-embed name="702617fd9ebc3f12e30081b5db93e8a8"><div>Each position separately moves the glyph in drawPosText.</div></fiddle-embed></div> |
| 3732 | |
| 3733 | ### Example |
| 3734 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3735 | <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.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3736 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3737 | <a name="SkPaint_getTextAlign"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3738 | ## getTextAlign |
| 3739 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3740 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3741 | Align getTextAlign() const |
| 3742 | </pre> |
| 3743 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3744 | Returns <a href="#Text_Align">Text Align</a>. |
| 3745 | 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] | 3746 | |
| 3747 | ### Return Value |
| 3748 | |
| 3749 | text placement relative to position |
| 3750 | |
| 3751 | ### Example |
| 3752 | |
| 3753 | <div><fiddle-embed name="2df932f526e810f74c89d30ec3f4c947"> |
| 3754 | |
| 3755 | #### Example Output |
| 3756 | |
| 3757 | ~~~~ |
| 3758 | kLeft_Align == default |
| 3759 | ~~~~ |
| 3760 | |
| 3761 | </fiddle-embed></div> |
| 3762 | |
| 3763 | --- |
| 3764 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3765 | <a name="SkPaint_setTextAlign"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3766 | ## setTextAlign |
| 3767 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3768 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3769 | void setTextAlign(Align align) |
| 3770 | </pre> |
| 3771 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3772 | Sets <a href="#Text_Align">Text Align</a> to <a href="#SkPaint_setTextAlign_align">align</a>. |
| 3773 | 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] | 3774 | |
| 3775 | ### Parameters |
| 3776 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3777 | <table> <tr> <td><a name="SkPaint_setTextAlign_align"> <code><strong>align </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3778 | text placement relative to position</td> |
| 3779 | </tr> |
| 3780 | </table> |
| 3781 | |
| 3782 | ### Example |
| 3783 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3784 | <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 | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3785 | alignment out of range has no effect.</div></fiddle-embed></div> |
| 3786 | |
| 3787 | --- |
| 3788 | |
| 3789 | # <a name="Text_Size"></a> Text Size |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3790 | <a href="#Text_Size">Text Size</a> adjusts the overall text size in points. |
| 3791 | <a href="#Text_Size">Text Size</a> can be set to any positive value or zero. |
| 3792 | <a href="#Text_Size">Text Size</a> defaults to 12. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3793 | 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] | 3794 | |
| 3795 | ### Example |
| 3796 | |
| 3797 | <div><fiddle-embed name="91c9a3e498bb9412e4522a95d076ed5f"></fiddle-embed></div> |
| 3798 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3799 | <a name="SkPaint_getTextSize"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3800 | ## getTextSize |
| 3801 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3802 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3803 | SkScalar getTextSize() const |
| 3804 | </pre> |
| 3805 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3806 | Returns <a href="#Text_Size">Text Size</a> in points. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3807 | |
| 3808 | ### Return Value |
| 3809 | |
| 3810 | typographic height of text |
| 3811 | |
| 3812 | ### Example |
| 3813 | |
| 3814 | <div><fiddle-embed name="983e2a71ba72d4ba8c945420040b8f1c"></fiddle-embed></div> |
| 3815 | |
| 3816 | --- |
| 3817 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3818 | <a name="SkPaint_setTextSize"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3819 | ## setTextSize |
| 3820 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3821 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3822 | void setTextSize(SkScalar textSize) |
| 3823 | </pre> |
| 3824 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3825 | Sets <a href="#Text_Size">Text Size</a> in points. |
| 3826 | 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] | 3827 | |
| 3828 | ### Parameters |
| 3829 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3830 | <table> <tr> <td><a name="SkPaint_setTextSize_textSize"> <code><strong>textSize </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3831 | typographic height of text</td> |
| 3832 | </tr> |
| 3833 | </table> |
| 3834 | |
| 3835 | ### Example |
| 3836 | |
| 3837 | <div><fiddle-embed name="6510c9e2f57b83c47e67829e7a68d493"></fiddle-embed></div> |
| 3838 | |
| 3839 | --- |
| 3840 | |
| 3841 | # <a name="Text_Scale_X"></a> Text Scale X |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3842 | <a href="#Text_Scale_X">Text Scale X</a> adjusts the text horizontal scale. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3843 | <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] | 3844 | is not available. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3845 | <a href="#Text_Scale_X">Text Scale X</a> can be set to any value. |
| 3846 | <a href="#Text_Scale_X">Text Scale X</a> defaults to 1. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3847 | |
| 3848 | ### Example |
| 3849 | |
| 3850 | <div><fiddle-embed name="d13d787c1e36f515319fc998411c1d91"></fiddle-embed></div> |
| 3851 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3852 | <a name="SkPaint_getTextScaleX"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3853 | ## getTextScaleX |
| 3854 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3855 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3856 | SkScalar getTextScaleX() const |
| 3857 | </pre> |
| 3858 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3859 | Returns <a href="#Text_Scale_X">Text Scale X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3860 | Default value is 1. |
| 3861 | |
| 3862 | ### Return Value |
| 3863 | |
| 3864 | text horizontal scale |
| 3865 | |
| 3866 | ### Example |
| 3867 | |
| 3868 | <div><fiddle-embed name="5dc8e58f6910cb8e4de9ed60f888188b"></fiddle-embed></div> |
| 3869 | |
| 3870 | --- |
| 3871 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3872 | <a name="SkPaint_setTextScaleX"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3873 | ## setTextScaleX |
| 3874 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3875 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3876 | void setTextScaleX(SkScalar scaleX) |
| 3877 | </pre> |
| 3878 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3879 | Sets <a href="#Text_Scale_X">Text Scale X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3880 | Default value is 1. |
| 3881 | |
| 3882 | ### Parameters |
| 3883 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3884 | <table> <tr> <td><a name="SkPaint_setTextScaleX_scaleX"> <code><strong>scaleX </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3885 | text horizontal scale</td> |
| 3886 | </tr> |
| 3887 | </table> |
| 3888 | |
| 3889 | ### Example |
| 3890 | |
| 3891 | <div><fiddle-embed name="a75bbdb8bb866b125c4c1dd5e967d470"></fiddle-embed></div> |
| 3892 | |
| 3893 | --- |
| 3894 | |
| 3895 | # <a name="Text_Skew_X"></a> Text Skew X |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3896 | <a href="#Text_Skew_X">Text Skew X</a> adjusts the text horizontal slant. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 3897 | <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] | 3898 | is not available. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3899 | <a href="#Text_Skew_X">Text Skew X</a> can be set to any value. |
| 3900 | <a href="#Text_Skew_X">Text Skew X</a> defaults to 0. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3901 | |
| 3902 | ### Example |
| 3903 | |
| 3904 | <div><fiddle-embed name="aff208b0aab265f273045b27e683c17c"></fiddle-embed></div> |
| 3905 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3906 | <a name="SkPaint_getTextSkewX"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3907 | ## getTextSkewX |
| 3908 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3909 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3910 | SkScalar getTextSkewX() const |
| 3911 | </pre> |
| 3912 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3913 | Returns <a href="#Text_Skew_X">Text Skew X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3914 | Default value is zero. |
| 3915 | |
| 3916 | ### Return Value |
| 3917 | |
| 3918 | additional shear in x-axis relative to y-axis |
| 3919 | |
| 3920 | ### Example |
| 3921 | |
| 3922 | <div><fiddle-embed name="11c10f466dae0d1639dbb9f6a0040218"></fiddle-embed></div> |
| 3923 | |
| 3924 | --- |
| 3925 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 3926 | <a name="SkPaint_setTextSkewX"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3927 | ## setTextSkewX |
| 3928 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3929 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3930 | void setTextSkewX(SkScalar skewX) |
| 3931 | </pre> |
| 3932 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3933 | Sets <a href="#Text_Skew_X">Text Skew X</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3934 | Default value is zero. |
| 3935 | |
| 3936 | ### Parameters |
| 3937 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3938 | <table> <tr> <td><a name="SkPaint_setTextSkewX_skewX"> <code><strong>skewX </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3939 | additional shear in x-axis relative to y-axis</td> |
| 3940 | </tr> |
| 3941 | </table> |
| 3942 | |
| 3943 | ### Example |
| 3944 | |
| 3945 | <div><fiddle-embed name="6bd705a6e0c5f8ee24f302fe531bfabc"></fiddle-embed></div> |
| 3946 | |
| 3947 | --- |
| 3948 | |
| 3949 | # <a name="Text_Encoding"></a> Text Encoding |
| 3950 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3951 | ## <a name="SkPaint_TextEncoding"></a> Enum SkPaint::TextEncoding |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3952 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3953 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3954 | enum <a href="#SkPaint_TextEncoding">TextEncoding</a> { |
| 3955 | <a href="#SkPaint_kUTF8_TextEncoding">kUTF8 TextEncoding</a>, |
| 3956 | <a href="#SkPaint_kUTF16_TextEncoding">kUTF16 TextEncoding</a>, |
| 3957 | <a href="#SkPaint_kUTF32_TextEncoding">kUTF32 TextEncoding</a>, |
| 3958 | <a href="#SkPaint_kGlyphID_TextEncoding">kGlyphID TextEncoding</a>, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3959 | };</pre> |
| 3960 | |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3961 | <a href="#SkPaint_TextEncoding">TextEncoding</a> determines whether text specifies character codes and their encoded |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3962 | size, or glyph indices. Characters are encoded as specified by the <a href="http://unicode.org/standard/standard.html">Unicode standard</a> . |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3963 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3964 | 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] | 3965 | 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] | 3966 | in the total storage required. |
| 3967 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3968 | <a href="https://tools.ietf.org/html/rfc3629">UTF-8 (RFC 3629)</a> encodes each character as one or more 8-bit bytes. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3969 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3970 | <a href="https://tools.ietf.org/html/rfc2781">UTF-16 (RFC 2781)</a> encodes each character as one or two 16-bit words. |
Cary Clark | 6fc5041 | 2017-09-21 12:31:06 -0400 | [diff] [blame] | 3971 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3972 | <a href="http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf">UTF-32</a> encodes each character as one 32-bit word. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3973 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3974 | <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] | 3975 | A glyph index is a 16-bit word. |
| 3976 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3977 | <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] | 3978 | |
| 3979 | ### Constants |
| 3980 | |
| 3981 | <table> |
| 3982 | <tr> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3983 | <td><a name="SkPaint_kUTF8_TextEncoding"> <code><strong>SkPaint::kUTF8_TextEncoding </strong></code> </a></td><td>0</td><td>Uses bytes to represent UTF-8 or ASCII.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3984 | </tr> |
| 3985 | <tr> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3986 | <td><a name="SkPaint_kUTF16_TextEncoding"> <code><strong>SkPaint::kUTF16_TextEncoding </strong></code> </a></td><td>1</td><td>Uses two byte words to represent most of Unicode.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3987 | </tr> |
| 3988 | <tr> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 3989 | <td><a name="SkPaint_kUTF32_TextEncoding"> <code><strong>SkPaint::kUTF32_TextEncoding </strong></code> </a></td><td>2</td><td>Uses four byte words to represent all of Unicode.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3990 | </tr> |
| 3991 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 3992 | <td><a name="SkPaint_kGlyphID_TextEncoding"> <code><strong>SkPaint::kGlyphID_TextEncoding </strong></code> </a></td><td>3</td><td>Uses two byte words to represent glyph indices.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 3993 | </tr> |
| 3994 | |
| 3995 | </table> |
| 3996 | |
| 3997 | ### Example |
| 3998 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 3999 | <div><fiddle-embed name="b29294e7f29d160a1b46abf2dcec9d2a"><div>First line is encoded in UTF-8. |
| 4000 | Second line is encoded in UTF-16. |
| 4001 | Third line is encoded in UTF-32. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4002 | Fourth line has 16 bit glyph indices.</div></fiddle-embed></div> |
| 4003 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4004 | <a name="SkPaint_getTextEncoding"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4005 | ## getTextEncoding |
| 4006 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4007 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4008 | TextEncoding getTextEncoding() const |
| 4009 | </pre> |
| 4010 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4011 | Returns <a href="#Text_Encoding">Text Encoding</a>. |
| 4012 | <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] | 4013 | |
| 4014 | ### Return Value |
| 4015 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4016 | 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 |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4017 | <a href="#SkPaint_kGlyphID_TextEncoding">kGlyphID TextEncoding</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4018 | |
| 4019 | ### Example |
| 4020 | |
| 4021 | <div><fiddle-embed name="70ad28bbf7668b38474d7f225e3540bc"> |
| 4022 | |
| 4023 | #### Example Output |
| 4024 | |
| 4025 | ~~~~ |
| 4026 | kUTF8_TextEncoding == text encoding |
| 4027 | kGlyphID_TextEncoding == text encoding |
| 4028 | ~~~~ |
| 4029 | |
| 4030 | </fiddle-embed></div> |
| 4031 | |
| 4032 | --- |
| 4033 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4034 | <a name="SkPaint_setTextEncoding"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4035 | ## setTextEncoding |
| 4036 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4037 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4038 | void setTextEncoding(TextEncoding encoding) |
| 4039 | </pre> |
| 4040 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4041 | Sets <a href="#Text_Encoding">Text Encoding</a> to <a href="#SkPaint_setTextEncoding_encoding">encoding</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4042 | <a href="#Text_Encoding">Text Encoding</a> determines how character code points are mapped to font glyph indices. |
| 4043 | Invalid values for <a href="#SkPaint_setTextEncoding_encoding">encoding</a> are ignored. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4044 | |
| 4045 | ### Parameters |
| 4046 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4047 | <table> <tr> <td><a name="SkPaint_setTextEncoding_encoding"> <code><strong>encoding </strong></code> </a></td> <td> |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4048 | 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 |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4049 | <a href="#SkPaint_kGlyphID_TextEncoding">kGlyphID TextEncoding</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4050 | </tr> |
Cary Clark | bad5ad7 | 2017-08-03 17:14:08 -0400 | [diff] [blame] | 4051 | # |
| 4052 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4053 | </table> |
| 4054 | |
| 4055 | ### Example |
| 4056 | |
| 4057 | <div><fiddle-embed name="329b92fbc35151dee9aa0c0e70107665"> |
| 4058 | |
| 4059 | #### Example Output |
| 4060 | |
| 4061 | ~~~~ |
| 4062 | 4 != text encoding |
| 4063 | ~~~~ |
| 4064 | |
| 4065 | </fiddle-embed></div> |
| 4066 | |
| 4067 | --- |
| 4068 | |
| 4069 | # <a name="Font_Metrics"></a> Font Metrics |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4070 | <a href="#Font_Metrics">Font Metrics</a> describe dimensions common to the <a href="#Glyph">Glyphs</a> in <a href="undocumented#Typeface">Typeface</a>. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4071 | The dimensions are computed by <a href="undocumented#Font_Manager">Font Manager</a> from font data and do not take |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4072 | <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] | 4073 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4074 | <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] | 4075 | X-axis values to the left of the glyph are negative, and to the right of the left glyph edge |
| 4076 | are positive. |
| 4077 | Y-axis values above the baseline are negative, and below the baseline are positive. |
| 4078 | |
| 4079 | ### Example |
| 4080 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4081 | <div><fiddle-embed name="2bfa3783719fcd769af177a1b244e171"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4082 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4083 | # <a name="SkPaint_FontMetrics"></a> Struct SkPaint::FontMetrics |
Cary Clark | e4aa371 | 2017-09-15 02:56:12 -0400 | [diff] [blame] | 4084 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4085 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4086 | struct <a href="#SkPaint_FontMetrics">FontMetrics</a> { |
| 4087 | enum <a href="#SkPaint_FontMetrics_FontMetricsFlags">FontMetricsFlags</a> { |
| 4088 | <a href="#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag">kUnderlineThicknessIsValid Flag</a> = 1 << 0, |
| 4089 | <a href="#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag">kUnderlinePositionIsValid Flag</a> = 1 << 1, |
| 4090 | <a href="#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag">kStrikeoutThicknessIsValid Flag</a> = 1 << 2, |
| 4091 | <a href="#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag">kStrikeoutPositionIsValid Flag</a> = 1 << 3, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4092 | }; |
| 4093 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4094 | uint32_t <a href="#SkPaint_FontMetrics_fFlags">fFlags</a>; |
| 4095 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fTop">fTop</a>; |
| 4096 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fAscent">fAscent</a>; |
| 4097 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fDescent">fDescent</a>; |
| 4098 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fBottom">fBottom</a>; |
| 4099 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fLeading">fLeading</a>; |
| 4100 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fAvgCharWidth">fAvgCharWidth</a>; |
| 4101 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fMaxCharWidth">fMaxCharWidth</a>; |
| 4102 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fXMin">fXMin</a>; |
| 4103 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fXMax">fXMax</a>; |
| 4104 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fXHeight">fXHeight</a>; |
| 4105 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fCapHeight">fCapHeight</a>; |
| 4106 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fUnderlineThickness">fUnderlineThickness</a>; |
| 4107 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fUnderlinePosition">fUnderlinePosition</a>; |
| 4108 | <a href="undocumented#SkScalar">SkScalar</a> <a href="#SkPaint_FontMetrics_fStrikeoutThickness">fStrikeoutThickness</a>; |
| 4109 | <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] | 4110 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4111 | bool <a href="#SkPaint_FontMetrics_hasUnderlineThickness">hasUnderlineThickness(SkScalar* thickness)</a> const; |
| 4112 | bool <a href="#SkPaint_FontMetrics_hasUnderlinePosition">hasUnderlinePosition(SkScalar* position)</a> const; |
| 4113 | bool <a href="#SkPaint_FontMetrics_hasStrikeoutThickness">hasStrikeoutThickness(SkScalar* thickness)</a> const; |
| 4114 | bool <a href="#SkPaint_FontMetrics_hasStrikeoutPosition">hasStrikeoutPosition(SkScalar* position)</a> const; |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4115 | };</pre> |
| 4116 | |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4117 | <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 |
| 4118 | 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 |
| 4119 | not available. |
| 4120 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4121 | All vertical values relative to the baseline are given y-down. As such, zero is on the |
| 4122 | baseline, negative values are above the baseline, and positive values are below the |
| 4123 | baseline. |
| 4124 | |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4125 | <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 |
| 4126 | are valid, since their value may be zero. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4127 | |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4128 | <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 |
| 4129 | are valid, since their value may be zero. |
| 4130 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4131 | ## <a name="SkPaint_FontMetrics_FontMetricsFlags"></a> Enum SkPaint::FontMetrics::FontMetricsFlags |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4132 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4133 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4134 | enum <a href="#SkPaint_FontMetrics_FontMetricsFlags">FontMetricsFlags</a> { |
| 4135 | <a href="#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag">kUnderlineThicknessIsValid Flag</a> = 1 << 0, |
| 4136 | <a href="#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag">kUnderlinePositionIsValid Flag</a> = 1 << 1, |
| 4137 | <a href="#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag">kStrikeoutThicknessIsValid Flag</a> = 1 << 2, |
| 4138 | <a href="#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag">kStrikeoutPositionIsValid Flag</a> = 1 << 3, |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4139 | };</pre> |
| 4140 | |
Cary Clark | 154beea | 2017-10-26 07:58:48 -0400 | [diff] [blame] | 4141 | <a href="#SkPaint_FontMetrics_FontMetricsFlags">FontMetricsFlags</a> are set in <a href="#SkPaint_FontMetrics_fFlags">fFlags</a> when underline and strikeout metrics are valid; |
| 4142 | the underline or strikeout metric may be valid and zero. |
| 4143 | Fonts with embedded bitmaps may not have valid underline or strikeout metrics. |
| 4144 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4145 | ### Constants |
| 4146 | |
| 4147 | <table> |
| 4148 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4149 | <td><a name="SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag"> <code><strong>SkPaint::FontMetrics::kUnderlineThicknessIsValid_Flag </strong></code> </a></td><td>0x0001</td><td>Set if <a href="#SkPaint_FontMetrics_fUnderlineThickness">fUnderlineThickness</a> is valid.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4150 | </tr> |
| 4151 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4152 | <td><a name="SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag"> <code><strong>SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag </strong></code> </a></td><td>0x0002</td><td>Set if <a href="#SkPaint_FontMetrics_fUnderlinePosition">fUnderlinePosition</a> is valid.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4153 | </tr> |
| 4154 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4155 | <td><a name="SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag"> <code><strong>SkPaint::FontMetrics::kStrikeoutThicknessIsValid_Flag </strong></code> </a></td><td>0x0004</td><td>Set if <a href="#SkPaint_FontMetrics_fStrikeoutThickness">fStrikeoutThickness</a> is valid.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4156 | </tr> |
| 4157 | <tr> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4158 | <td><a name="SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag"> <code><strong>SkPaint::FontMetrics::kStrikeoutPositionIsValid_Flag </strong></code> </a></td><td>0x0008</td><td>Set if <a href="#SkPaint_FontMetrics_fStrikeoutPosition">fStrikeoutPosition</a> is valid.</td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4159 | </tr> |
| 4160 | |
| 4161 | </table> |
| 4162 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4163 | <a name="SkPaint_FontMetrics_fFlags"> <code><strong>uint32_t fFlags</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4164 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4165 | <a href="#SkPaint_FontMetrics_fFlags">fFlags</a> is set when underline metrics are valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4166 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4167 | <a name="SkPaint_FontMetrics_fTop"> <code><strong>SkScalar fTop</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4168 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4169 | Greatest extent above the baseline for any glyph. |
| 4170 | Typically less than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4171 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4172 | <a name="SkPaint_FontMetrics_fAscent"> <code><strong>SkScalar fAscent</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4173 | |
| 4174 | Recommended distance above the baseline to reserve for a line of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4175 | Typically less than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4176 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4177 | <a name="SkPaint_FontMetrics_fDescent"> <code><strong>SkScalar fDescent</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4178 | |
| 4179 | Recommended distance below the baseline to reserve for a line of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4180 | Typically greater than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4181 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4182 | <a name="SkPaint_FontMetrics_fBottom"> <code><strong>SkScalar fBottom</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4183 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4184 | Greatest extent below the baseline for any glyph. |
| 4185 | Typically greater than zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4186 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4187 | <a name="SkPaint_FontMetrics_fLeading"> <code><strong>SkScalar fLeading</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4188 | |
| 4189 | Recommended distance to add between lines of text. |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4190 | Typically greater than or equal to zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4191 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4192 | <a name="SkPaint_FontMetrics_fAvgCharWidth"> <code><strong>SkScalar fAvgCharWidth</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4193 | |
| 4194 | Average character width, if it is available. |
| 4195 | Zero if no average width is stored in the font. |
| 4196 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4197 | <a name="SkPaint_FontMetrics_fMaxCharWidth"> <code><strong>SkScalar fMaxCharWidth</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4198 | |
| 4199 | Maximum character width. |
| 4200 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4201 | <a name="SkPaint_FontMetrics_fXMin"> <code><strong>SkScalar fXMin</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4202 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4203 | Minimum bounding box x value for all <a href="#Glyph">Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4204 | Typically less than zero. |
| 4205 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4206 | <a name="SkPaint_FontMetrics_fXMax"> <code><strong>SkScalar fXMax</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4207 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4208 | Maximum bounding box x value for all <a href="#Glyph">Glyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4209 | Typically greater than zero. |
| 4210 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4211 | <a name="SkPaint_FontMetrics_fXHeight"> <code><strong>SkScalar fXHeight</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4212 | |
| 4213 | Height of a lower-case 'x'. |
| 4214 | May be zero if no lower-case height is stored in the font. |
| 4215 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4216 | <a name="SkPaint_FontMetrics_fCapHeight"> <code><strong>SkScalar fCapHeight</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4217 | |
| 4218 | Height of an upper-case letter. |
| 4219 | May be zero if no upper-case height is stored in the font. |
| 4220 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4221 | <a name="SkPaint_FontMetrics_fUnderlineThickness"> <code><strong>SkScalar fUnderlineThickness</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4222 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4223 | Underline thickness. |
| 4224 | |
| 4225 | 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>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4226 | If <a href="#SkPaint_FontMetrics_kUnderlineThicknessIsValid_Flag">kUnderlineThicknessIsValid Flag</a> is clear, <a href="#SkPaint_FontMetrics_fUnderlineThickness">fUnderlineThickness</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4227 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4228 | <a name="SkPaint_FontMetrics_fUnderlinePosition"> <code><strong>SkScalar fUnderlinePosition</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4229 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4230 | Position of the top of the underline stroke relative to the baseline. |
| 4231 | Typically positive when valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4232 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4233 | 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>. |
| 4234 | If <a href="#SkPaint_FontMetrics_kUnderlinePositionIsValid_Flag">kUnderlinePositionIsValid Flag</a> is clear, <a href="#SkPaint_FontMetrics_fUnderlinePosition">fUnderlinePosition</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4235 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4236 | <a name="SkPaint_FontMetrics_fStrikeoutThickness"> <code><strong>SkScalar fStrikeoutThickness</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4237 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4238 | Strikeout thickness. |
| 4239 | |
| 4240 | 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>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4241 | If <a href="#SkPaint_FontMetrics_kStrikeoutThicknessIsValid_Flag">kStrikeoutThicknessIsValid Flag</a> is clear, <a href="#SkPaint_FontMetrics_fStrikeoutThickness">fStrikeoutThickness</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4242 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4243 | <a name="SkPaint_FontMetrics_fStrikeoutPosition"> <code><strong>SkScalar fStrikeoutPosition</strong></code> </a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4244 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4245 | Position of the bottom of the strikeout stroke relative to the baseline. |
| 4246 | Typically negative when valid. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4247 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4248 | 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>. |
| 4249 | If <a href="#SkPaint_FontMetrics_kStrikeoutPositionIsValid_Flag">kStrikeoutPositionIsValid Flag</a> is clear, <a href="#SkPaint_FontMetrics_fStrikeoutPosition">fStrikeoutPosition</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4250 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4251 | <a name="SkPaint_FontMetrics_hasUnderlineThickness"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4252 | ## hasUnderlineThickness |
| 4253 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4254 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4255 | bool hasUnderlineThickness(SkScalar* thickness) const |
| 4256 | </pre> |
| 4257 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4258 | If <a href="#Font_Metrics">Font Metrics</a> has a valid underline <a href="#SkPaint_FontMetrics_hasUnderlineThickness_thickness">thickness</a>, return true, and set |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4259 | <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, |
| 4260 | return false, and ignore <a href="#SkPaint_FontMetrics_hasUnderlineThickness_thickness">thickness</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4261 | |
| 4262 | ### Parameters |
| 4263 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4264 | <table> <tr> <td><a name="SkPaint_FontMetrics_hasUnderlineThickness_thickness"> <code><strong>thickness </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4265 | storage for underline width</td> |
| 4266 | </tr> |
| 4267 | </table> |
| 4268 | |
| 4269 | ### Return Value |
| 4270 | |
| 4271 | true if font specifies underline width |
| 4272 | |
| 4273 | --- |
| 4274 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4275 | <a name="SkPaint_FontMetrics_hasUnderlinePosition"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4276 | ## hasUnderlinePosition |
| 4277 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4278 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4279 | bool hasUnderlinePosition(SkScalar* position) const |
| 4280 | </pre> |
| 4281 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4282 | If <a href="#Font_Metrics">Font Metrics</a> has a valid underline <a href="#SkPaint_FontMetrics_hasUnderlinePosition_position">position</a>, return true, and set |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4283 | <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, |
| 4284 | return false, and ignore <a href="#SkPaint_FontMetrics_hasUnderlinePosition_position">position</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4285 | |
| 4286 | ### Parameters |
| 4287 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4288 | <table> <tr> <td><a name="SkPaint_FontMetrics_hasUnderlinePosition_position"> <code><strong>position </strong></code> </a></td> <td> |
| 4289 | storage for underline <a href="#SkPaint_FontMetrics_hasUnderlinePosition_position">position</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4290 | </tr> |
| 4291 | </table> |
| 4292 | |
| 4293 | ### Return Value |
| 4294 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4295 | 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] | 4296 | |
| 4297 | --- |
| 4298 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4299 | <a name="SkPaint_FontMetrics_hasStrikeoutThickness"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4300 | ## hasStrikeoutThickness |
| 4301 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4302 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4303 | bool hasStrikeoutThickness(SkScalar* thickness) const |
| 4304 | </pre> |
| 4305 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4306 | If <a href="#Font_Metrics">Font Metrics</a> has a valid strikeout <a href="#SkPaint_FontMetrics_hasStrikeoutThickness_thickness">thickness</a>, return true, and set |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4307 | <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, |
| 4308 | return false, and ignore <a href="#SkPaint_FontMetrics_hasStrikeoutThickness_thickness">thickness</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4309 | |
| 4310 | ### Parameters |
| 4311 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4312 | <table> <tr> <td><a name="SkPaint_FontMetrics_hasStrikeoutThickness_thickness"> <code><strong>thickness </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4313 | storage for strikeout width</td> |
| 4314 | </tr> |
| 4315 | </table> |
| 4316 | |
| 4317 | ### Return Value |
| 4318 | |
| 4319 | true if font specifies strikeout width |
| 4320 | |
| 4321 | --- |
| 4322 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4323 | <a name="SkPaint_FontMetrics_hasStrikeoutPosition"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4324 | ## hasStrikeoutPosition |
| 4325 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4326 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4327 | bool hasStrikeoutPosition(SkScalar* position) const |
| 4328 | </pre> |
| 4329 | |
Ben Wagner | e580649 | 2017-11-09 12:08:31 -0500 | [diff] [blame] | 4330 | If <a href="#Font_Metrics">Font Metrics</a> has a valid strikeout <a href="#SkPaint_FontMetrics_hasStrikeoutPosition_position">position</a>, return true, and set |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4331 | <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, |
| 4332 | return false, and ignore <a href="#SkPaint_FontMetrics_hasStrikeoutPosition_position">position</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4333 | |
| 4334 | ### Parameters |
| 4335 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4336 | <table> <tr> <td><a name="SkPaint_FontMetrics_hasStrikeoutPosition_position"> <code><strong>position </strong></code> </a></td> <td> |
| 4337 | storage for strikeout <a href="#SkPaint_FontMetrics_hasStrikeoutPosition_position">position</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4338 | </tr> |
| 4339 | </table> |
| 4340 | |
| 4341 | ### Return Value |
| 4342 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4343 | 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] | 4344 | |
| 4345 | --- |
| 4346 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4347 | <a name="SkPaint_getFontMetrics"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4348 | ## getFontMetrics |
| 4349 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4350 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4351 | SkScalar getFontMetrics(FontMetrics* metrics, SkScalar scale = 0) const |
| 4352 | </pre> |
| 4353 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4354 | Returns <a href="#Font_Metrics">Font Metrics</a> associated with <a href="undocumented#Typeface">Typeface</a>. |
| 4355 | 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] | 4356 | descent, ascent, and leading. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4357 | 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>. |
| 4358 | Results are scaled by <a href="#Text_Size">Text Size</a> but does not take into account |
| 4359 | 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>, |
| 4360 | <a href="#Style_Stroke">Style Stroke</a>, and <a href="undocumented#Path_Effect">Path Effect</a>. |
| 4361 | 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] | 4362 | is ignored. |
| 4363 | |
| 4364 | ### Parameters |
| 4365 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4366 | <table> <tr> <td><a name="SkPaint_getFontMetrics_metrics"> <code><strong>metrics </strong></code> </a></td> <td> |
| 4367 | storage for <a href="#Font_Metrics">Font Metrics</a> from <a href="undocumented#Typeface">Typeface</a>; may be nullptr</td> |
| 4368 | </tr> <tr> <td><a name="SkPaint_getFontMetrics_scale"> <code><strong>scale </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4369 | additional multiplier for returned values</td> |
| 4370 | </tr> |
| 4371 | </table> |
| 4372 | |
| 4373 | ### Return Value |
| 4374 | |
| 4375 | recommended spacing between lines |
| 4376 | |
| 4377 | ### Example |
| 4378 | |
| 4379 | <div><fiddle-embed name="b899d84caba6607340322d317992d070"></fiddle-embed></div> |
| 4380 | |
| 4381 | ### See Also |
| 4382 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4383 | <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] | 4384 | |
| 4385 | --- |
| 4386 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4387 | <a name="SkPaint_getFontSpacing"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4388 | ## getFontSpacing |
| 4389 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4390 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4391 | SkScalar getFontSpacing() const |
| 4392 | </pre> |
| 4393 | |
| 4394 | Returns the recommended spacing between lines: the sum of metrics |
| 4395 | descent, ascent, and leading. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4396 | Result is scaled by <a href="#Text_Size">Text Size</a> but does not take into account |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4397 | dimensions required by stroking and <a href="undocumented#Path_Effect">Path Effect</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4398 | Returns the same result as <a href="#SkPaint_getFontMetrics">getFontMetrics</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4399 | |
| 4400 | ### Return Value |
| 4401 | |
| 4402 | recommended spacing between lines |
| 4403 | |
| 4404 | ### Example |
| 4405 | |
| 4406 | <div><fiddle-embed name="424741e26e1b174e43087d67422ce14f"> |
| 4407 | |
| 4408 | #### Example Output |
| 4409 | |
| 4410 | ~~~~ |
| 4411 | textSize: 12 fontSpacing: 13.9688 |
| 4412 | textSize: 18 fontSpacing: 20.9531 |
| 4413 | textSize: 24 fontSpacing: 27.9375 |
| 4414 | textSize: 32 fontSpacing: 37.25 |
| 4415 | ~~~~ |
| 4416 | |
| 4417 | </fiddle-embed></div> |
| 4418 | |
| 4419 | --- |
| 4420 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4421 | <a name="SkPaint_getFontBounds"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4422 | ## getFontBounds |
| 4423 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4424 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4425 | SkRect getFontBounds() const |
| 4426 | </pre> |
| 4427 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4428 | Returns the union of bounds of all <a href="#Glyph">Glyphs</a>. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4429 | Returned dimensions are computed by <a href="undocumented#Font_Manager">Font Manager</a> from font data, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4430 | ignoring <a href="#SkPaint_Hinting">Hinting</a>. Includes <a href="#Text_Size">Text Size</a>, <a href="#Text_Scale_X">Text Scale X</a>, |
| 4431 | 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] | 4432 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4433 | 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, |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4434 | returns the same bounds as <a href="#Font_Metrics">Font Metrics</a> { <a href="#SkPaint_FontMetrics_fXMin">FontMetrics::fXMin</a>, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4435 | <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] | 4436 | |
| 4437 | ### Return Value |
| 4438 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4439 | union of bounds of all <a href="#Glyph">Glyphs</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4440 | |
| 4441 | ### Example |
| 4442 | |
| 4443 | <div><fiddle-embed name="facaddeec7943bc491988e345e27e65f"> |
| 4444 | |
| 4445 | #### Example Output |
| 4446 | |
| 4447 | ~~~~ |
| 4448 | metrics bounds = { -12.2461, -14.7891, 21.5215, 5.55469 } |
| 4449 | font bounds = { -12.2461, -14.7891, 21.5215, 5.55469 } |
| 4450 | ~~~~ |
| 4451 | |
| 4452 | </fiddle-embed></div> |
| 4453 | |
| 4454 | --- |
| 4455 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4456 | <a name="SkPaint_textToGlyphs"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4457 | ## textToGlyphs |
| 4458 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4459 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4460 | int textToGlyphs(const void* text, size_t byteLength, SkGlyphID glyphs[]) const |
| 4461 | </pre> |
| 4462 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4463 | Converts <a href="#SkPaint_textToGlyphs_text">text</a> into glyph indices. |
| 4464 | Returns the number of glyph indices represented by <a href="#SkPaint_textToGlyphs_text">text</a>. |
| 4465 | <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>. |
| 4466 | <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] | 4467 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 4468 | 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] | 4469 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4470 | If <a href="#SkPaint_textToGlyphs_byteLength">byteLength</a> equals zero, returns zero. |
| 4471 | 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] | 4472 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4473 | If <a href="#Text_Encoding">Text Encoding</a> is <a href="#SkPaint_kUTF8_TextEncoding">kUTF8 TextEncoding</a> and |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4474 | <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] | 4475 | |
| 4476 | ### Parameters |
| 4477 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4478 | <table> <tr> <td><a name="SkPaint_textToGlyphs_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4479 | character storage encoded with <a href="#Text_Encoding">Text Encoding</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4480 | </tr> <tr> <td><a name="SkPaint_textToGlyphs_byteLength"> <code><strong>byteLength </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4481 | length of character storage in bytes</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4482 | </tr> <tr> <td><a name="SkPaint_textToGlyphs_glyphs"> <code><strong>glyphs </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4483 | storage for glyph indices; may be nullptr</td> |
| 4484 | </tr> |
| 4485 | </table> |
| 4486 | |
| 4487 | ### Return Value |
| 4488 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4489 | 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] | 4490 | |
| 4491 | ### Example |
| 4492 | |
| 4493 | <div><fiddle-embed name="343e9471a7f7b5f09abdc3b44983433b"></fiddle-embed></div> |
| 4494 | |
| 4495 | --- |
| 4496 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4497 | <a name="SkPaint_countText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4498 | ## countText |
| 4499 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4500 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4501 | int countText(const void* text, size_t byteLength) const |
| 4502 | </pre> |
| 4503 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4504 | Returns the number of <a href="#Glyph">Glyphs</a> in <a href="#SkPaint_countText_text">text</a>. |
| 4505 | Uses <a href="#Text_Encoding">Text Encoding</a> to count the <a href="#Glyph">Glyphs</a>. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4506 | Returns the same result as <a href="#SkPaint_textToGlyphs">textToGlyphs</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4507 | |
| 4508 | ### Parameters |
| 4509 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4510 | <table> <tr> <td><a name="SkPaint_countText_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4511 | character storage encoded with <a href="#Text_Encoding">Text Encoding</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4512 | </tr> <tr> <td><a name="SkPaint_countText_byteLength"> <code><strong>byteLength </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4513 | length of character storage in bytes</td> |
| 4514 | </tr> |
| 4515 | </table> |
| 4516 | |
| 4517 | ### Return Value |
| 4518 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4519 | number of <a href="#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] | 4520 | |
| 4521 | ### Example |
| 4522 | |
| 4523 | <div><fiddle-embed name="85436c71aab5410767fc688ab0573e09"> |
| 4524 | |
| 4525 | #### Example Output |
| 4526 | |
| 4527 | ~~~~ |
| 4528 | count = 5 |
| 4529 | ~~~~ |
| 4530 | |
| 4531 | </fiddle-embed></div> |
| 4532 | |
| 4533 | --- |
| 4534 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4535 | <a name="SkPaint_containsText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4536 | ## containsText |
| 4537 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4538 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4539 | bool containsText(const void* text, size_t byteLength) const |
| 4540 | </pre> |
| 4541 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4542 | Returns true if all <a href="#SkPaint_containsText_text">text</a> corresponds to a non-zero glyph index. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4543 | Returns false if any characters in <a href="#SkPaint_containsText_text">text</a> are not supported in |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4544 | <a href="undocumented#Typeface">Typeface</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4545 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4546 | If <a href="#Text_Encoding">Text Encoding</a> is <a href="#SkPaint_kGlyphID_TextEncoding">kGlyphID TextEncoding</a>, |
| 4547 | returns true if all glyph indices in <a href="#SkPaint_containsText_text">text</a> are non-zero; |
| 4548 | 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] | 4549 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4550 | Returns true if <a href="#SkPaint_containsText_byteLength">byteLength</a> is zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4551 | |
| 4552 | ### Parameters |
| 4553 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4554 | <table> <tr> <td><a name="SkPaint_containsText_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4555 | array of characters or <a href="#Glyph">Glyphs</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4556 | </tr> <tr> <td><a name="SkPaint_containsText_byteLength"> <code><strong>byteLength </strong></code> </a></td> <td> |
| 4557 | 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] | 4558 | </tr> |
| 4559 | </table> |
| 4560 | |
| 4561 | ### Return Value |
| 4562 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4563 | 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] | 4564 | |
| 4565 | ### Example |
| 4566 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4567 | <div><fiddle-embed name="9202369019552f09cd4bec7f3046fee4"><div><a href="#SkPaint_containsText">containsText</a> succeeds for degree symbol, but cannot find a glyph index |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4568 | corresponding to the Unicode surrogate code point.</div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4569 | |
| 4570 | #### Example Output |
| 4571 | |
| 4572 | ~~~~ |
| 4573 | 0x00b0 == has char |
| 4574 | 0xd800 != has char |
| 4575 | ~~~~ |
| 4576 | |
| 4577 | </fiddle-embed></div> |
| 4578 | |
| 4579 | ### Example |
| 4580 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4581 | <div><fiddle-embed name="904227febfd1c2e264955da0ef66da73"><div><a href="#SkPaint_containsText">containsText</a> returns true that glyph index is greater than zero, not |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4582 | that it corresponds to an entry in <a href="undocumented#Typeface">Typeface</a>.</div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4583 | |
| 4584 | #### Example Output |
| 4585 | |
| 4586 | ~~~~ |
| 4587 | 0x01ff == has glyph |
| 4588 | 0x0000 != has glyph |
| 4589 | 0xffff == has glyph |
| 4590 | ~~~~ |
| 4591 | |
| 4592 | </fiddle-embed></div> |
| 4593 | |
| 4594 | ### See Also |
| 4595 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4596 | <a href="#SkPaint_setTextEncoding">setTextEncoding</a> <a href="undocumented#Typeface">Typeface</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4597 | |
| 4598 | --- |
| 4599 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4600 | <a name="SkPaint_glyphsToUnichars"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4601 | ## glyphsToUnichars |
| 4602 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4603 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4604 | void glyphsToUnichars(const SkGlyphID glyphs[], int count, SkUnichar text[]) const |
| 4605 | </pre> |
| 4606 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4607 | Converts <a href="#SkPaint_glyphsToUnichars_glyphs">glyphs</a> into <a href="#SkPaint_glyphsToUnichars_text">text</a> if possible. |
| 4608 | <a href="undocumented#Glyph">Glyph</a> values without direct Unicode equivalents are mapped to zero. |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4609 | Uses the <a href="undocumented#Typeface">Typeface</a>, but is unaffected |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4610 | 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] | 4611 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4612 | Only supported on platforms that use FreeType as the <a href="#Engine">Font Engine</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4613 | |
| 4614 | ### Parameters |
| 4615 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4616 | <table> <tr> <td><a name="SkPaint_glyphsToUnichars_glyphs"> <code><strong>glyphs </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4617 | array of indices into font</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4618 | </tr> <tr> <td><a name="SkPaint_glyphsToUnichars_count"> <code><strong>count </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4619 | length of glyph array</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4620 | </tr> <tr> <td><a name="SkPaint_glyphsToUnichars_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4621 | storage for character codes, one per glyph</td> |
| 4622 | </tr> |
| 4623 | </table> |
| 4624 | |
| 4625 | ### Example |
| 4626 | |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4627 | <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.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4628 | |
| 4629 | --- |
| 4630 | |
| 4631 | # <a name="Measure_Text"></a> Measure Text |
| 4632 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4633 | <a name="SkPaint_measureText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4634 | ## measureText |
| 4635 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4636 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4637 | SkScalar measureText(const void* text, size_t length, SkRect* bounds) const |
| 4638 | </pre> |
| 4639 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4640 | Returns the advance width of <a href="#SkPaint_measureText_text">text</a> if <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is clear, |
| 4641 | and the height of <a href="#SkPaint_measureText_text">text</a> if <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is set. |
| 4642 | The advance is the normal distance to move before drawing additional <a href="#SkPaint_measureText_text">text</a>. |
| 4643 | 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, |
| 4644 | 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 |
| 4645 | <a href="undocumented#Path_Effect">Path Effect</a> to scale the metrics and <a href="#SkPaint_measureText_bounds">bounds</a>. |
| 4646 | Returns the bounding box of <a href="#SkPaint_measureText_text">text</a> if <a href="#SkPaint_measureText_bounds">bounds</a> is not nullptr. |
| 4647 | 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] | 4648 | |
| 4649 | ### Parameters |
| 4650 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4651 | <table> <tr> <td><a name="SkPaint_measureText_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4652 | character codes or glyph indices to be measured</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4653 | </tr> <tr> <td><a name="SkPaint_measureText_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4654 | number of bytes of <a href="#SkPaint_measureText_text">text</a> to measure</td> |
| 4655 | </tr> <tr> <td><a name="SkPaint_measureText_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4656 | returns bounding box relative to (0, 0) if not nullptr</td> |
| 4657 | </tr> |
| 4658 | </table> |
| 4659 | |
| 4660 | ### Return Value |
| 4661 | |
| 4662 | advance width or height |
| 4663 | |
| 4664 | ### Example |
| 4665 | |
| 4666 | <div><fiddle-embed name="06084f609184470135a9cd9ebc5af149"></fiddle-embed></div> |
| 4667 | |
| 4668 | --- |
| 4669 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4670 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4671 | SkScalar measureText(const void* text, size_t length) const |
| 4672 | </pre> |
| 4673 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4674 | Returns the advance width of <a href="#SkPaint_measureText_2_text">text</a> if <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is clear, |
| 4675 | and the height of <a href="#SkPaint_measureText_2_text">text</a> if <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is set. |
| 4676 | The advance is the normal distance to move before drawing additional <a href="#SkPaint_measureText_2_text">text</a>. |
| 4677 | 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, |
| 4678 | and <a href="#Text_Size">Text Size</a> to scale the metrics. |
| 4679 | 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] | 4680 | |
| 4681 | ### Parameters |
| 4682 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4683 | <table> <tr> <td><a name="SkPaint_measureText_2_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4684 | character codes or glyph indices to be measured</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4685 | </tr> <tr> <td><a name="SkPaint_measureText_2_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4686 | 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] | 4687 | </tr> |
| 4688 | </table> |
| 4689 | |
| 4690 | ### Return Value |
| 4691 | |
| 4692 | advance width or height |
| 4693 | |
| 4694 | ### Example |
| 4695 | |
| 4696 | <div><fiddle-embed name="f1139a5ddd17fd47c2f45f6e642cac76"> |
| 4697 | |
| 4698 | #### Example Output |
| 4699 | |
| 4700 | ~~~~ |
| 4701 | default width = 5 |
| 4702 | double width = 10 |
| 4703 | ~~~~ |
| 4704 | |
| 4705 | </fiddle-embed></div> |
| 4706 | |
| 4707 | --- |
| 4708 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4709 | <a name="SkPaint_breakText"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4710 | ## breakText |
| 4711 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4712 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4713 | size_t breakText(const void* text, size_t length, SkScalar maxWidth, |
Cary Clark | 73fa972 | 2017-08-29 17:36:51 -0400 | [diff] [blame] | 4714 | SkScalar* measuredWidth = nullptr) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4715 | </pre> |
| 4716 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4717 | Returns the bytes of <a href="#SkPaint_breakText_text">text</a> that fit within <a href="#SkPaint_breakText_maxWidth">maxWidth</a>. |
| 4718 | 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 |
| 4719 | equal to <a href="#SkPaint_breakText_maxWidth">maxWidth</a>. |
| 4720 | 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 |
| 4721 | equal to <a href="#SkPaint_breakText_maxWidth">maxWidth</a>. |
| 4722 | Measures only while the advance is less than or equal to <a href="#SkPaint_breakText_maxWidth">maxWidth</a>. |
| 4723 | 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. |
| 4724 | 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, |
| 4725 | and <a href="#Text_Size">Text Size</a> to scale the metrics. |
| 4726 | 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] | 4727 | |
| 4728 | ### Parameters |
| 4729 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4730 | <table> <tr> <td><a name="SkPaint_breakText_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4731 | character codes or glyph indices to be measured</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4732 | </tr> <tr> <td><a name="SkPaint_breakText_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4733 | number of bytes of <a href="#SkPaint_breakText_text">text</a> to measure</td> |
| 4734 | </tr> <tr> <td><a name="SkPaint_breakText_maxWidth"> <code><strong>maxWidth </strong></code> </a></td> <td> |
| 4735 | advance limit; <a href="#SkPaint_breakText_text">text</a> is measured while advance is less than <a href="#SkPaint_breakText_maxWidth">maxWidth</a></td> |
| 4736 | </tr> <tr> <td><a name="SkPaint_breakText_measuredWidth"> <code><strong>measuredWidth </strong></code> </a></td> <td> |
| 4737 | 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] | 4738 | </tr> |
| 4739 | </table> |
| 4740 | |
| 4741 | ### Return Value |
| 4742 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4743 | 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] | 4744 | |
| 4745 | ### Example |
| 4746 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4747 | <div><fiddle-embed name="fd0033470ccbd5c7059670fdbf96cffc"><div><a href="undocumented#Line">Line</a> under "" shows desired width, shorter than available characters. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4748 | <a href="undocumented#Line">Line</a> under "" shows measured width after breaking <a href="#SkPaint_breakText_text">text</a>.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4749 | |
| 4750 | --- |
| 4751 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4752 | <a name="SkPaint_getTextWidths"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4753 | ## getTextWidths |
| 4754 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4755 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 4756 | int getTextWidths(const void* text, size_t byteLength, SkScalar widths[], SkRect bounds[] = nullptr) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4757 | </pre> |
| 4758 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4759 | Retrieves the advance and <a href="#SkPaint_getTextWidths_bounds">bounds</a> for each glyph in <a href="#SkPaint_getTextWidths_text">text</a>, and returns |
| 4760 | the glyph count in <a href="#SkPaint_getTextWidths_text">text</a>. |
| 4761 | Both <a href="#SkPaint_getTextWidths_widths">widths</a> and <a href="#SkPaint_getTextWidths_bounds">bounds</a> may be nullptr. |
| 4762 | 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. |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4763 | 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. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4764 | If <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is clear, <a href="#SkPaint_getTextWidths_widths">widths</a> returns the horizontal advance. |
| 4765 | If <a href="#SkPaint_kVerticalText_Flag">kVerticalText Flag</a> is set, <a href="#SkPaint_getTextWidths_widths">widths</a> returns the vertical advance. |
| 4766 | 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, |
| 4767 | 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>. |
| 4768 | Does not scale the advance by <a href="#Fake_Bold">Fake Bold</a> or <a href="undocumented#Path_Effect">Path Effect</a>. |
| 4769 | 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] | 4770 | |
| 4771 | ### Parameters |
| 4772 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4773 | <table> <tr> <td><a name="SkPaint_getTextWidths_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4774 | character codes or glyph indices to be measured</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4775 | </tr> <tr> <td><a name="SkPaint_getTextWidths_byteLength"> <code><strong>byteLength </strong></code> </a></td> <td> |
| 4776 | number of bytes of <a href="#SkPaint_getTextWidths_text">text</a> to measure</td> |
| 4777 | </tr> <tr> <td><a name="SkPaint_getTextWidths_widths"> <code><strong>widths </strong></code> </a></td> <td> |
| 4778 | returns <a href="#SkPaint_getTextWidths_text">text</a> advances for each glyph; may be nullptr</td> |
| 4779 | </tr> <tr> <td><a name="SkPaint_getTextWidths_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
| 4780 | 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] | 4781 | </tr> |
| 4782 | </table> |
| 4783 | |
| 4784 | ### Return Value |
| 4785 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4786 | glyph count in <a href="#SkPaint_getTextWidths_text">text</a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4787 | |
| 4788 | ### Example |
| 4789 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4790 | <div><fiddle-embed name="6b9e101f49e9c2c28755c5bdcef64dfb"><div>Bounds of <a href="#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. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4791 | The underlines show the <a href="#SkPaint_getTextWidths_text">text</a> advance, spaced to keep them distinct.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4792 | |
| 4793 | --- |
| 4794 | |
| 4795 | # <a name="Text_Path"></a> Text Path |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4796 | <a href="#Text_Path">Text Path</a> describes the geometry of <a href="#Glyph">Glyphs</a> used to draw text. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4797 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4798 | <a name="SkPaint_getTextPath"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4799 | ## getTextPath |
| 4800 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4801 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 4802 | void getTextPath(const void* text, size_t length, SkScalar x, SkScalar y, SkPath* path) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4803 | </pre> |
| 4804 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4805 | Returns the geometry as <a href="SkPath_Reference#Path">Path</a> equivalent to the drawn <a href="#SkPaint_getTextPath_text">text</a>. |
| 4806 | 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, |
| 4807 | 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. |
| 4808 | All of the glyph paths are stored in <a href="#SkPaint_getTextPath_path">path</a>. |
| 4809 | 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] | 4810 | |
| 4811 | ### Parameters |
| 4812 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4813 | <table> <tr> <td><a name="SkPaint_getTextPath_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4814 | character codes or glyph indices</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4815 | </tr> <tr> <td><a name="SkPaint_getTextPath_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4816 | number of bytes of <a href="#SkPaint_getTextPath_text">text</a></td> |
| 4817 | </tr> <tr> <td><a name="SkPaint_getTextPath_x"> <code><strong>x </strong></code> </a></td> <td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4818 | <a href="#SkPaint_getTextPath_x">x</a>-coordinate of the origin of the <a href="#SkPaint_getTextPath_text">text</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4819 | </tr> <tr> <td><a name="SkPaint_getTextPath_y"> <code><strong>y </strong></code> </a></td> <td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4820 | <a href="#SkPaint_getTextPath_y">y</a>-coordinate of the origin of the <a href="#SkPaint_getTextPath_text">text</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4821 | </tr> <tr> <td><a name="SkPaint_getTextPath_path"> <code><strong>path </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4822 | geometry of the <a href="#Glyph">Glyphs</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4823 | </tr> |
| 4824 | </table> |
| 4825 | |
| 4826 | ### Example |
| 4827 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 4828 | <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 | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4829 | the offset location. The result is rendered with one draw call.</div></fiddle-embed></div> |
| 4830 | |
| 4831 | --- |
| 4832 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4833 | <a name="SkPaint_getPosTextPath"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4834 | ## getPosTextPath |
| 4835 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4836 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 4837 | void getPosTextPath(const void* text, size_t length, const SkPoint pos[], SkPath* path) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4838 | </pre> |
| 4839 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4840 | Returns the geometry as <a href="SkPath_Reference#Path">Path</a> equivalent to the drawn <a href="#SkPaint_getPosTextPath_text">text</a>. |
| 4841 | 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, |
| 4842 | 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. |
| 4843 | All of the glyph paths are stored in <a href="#SkPaint_getPosTextPath_path">path</a>. |
| 4844 | 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>. |
| 4845 | <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] | 4846 | |
| 4847 | ### Parameters |
| 4848 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4849 | <table> <tr> <td><a name="SkPaint_getPosTextPath_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4850 | character codes or glyph indices</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4851 | </tr> <tr> <td><a name="SkPaint_getPosTextPath_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4852 | number of bytes of <a href="#SkPaint_getPosTextPath_text">text</a></td> |
| 4853 | </tr> <tr> <td><a name="SkPaint_getPosTextPath_pos"> <code><strong>pos </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4854 | positions of each glyph</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4855 | </tr> <tr> <td><a name="SkPaint_getPosTextPath_path"> <code><strong>path </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4856 | geometry of the <a href="#Glyph">Glyphs</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4857 | </tr> |
| 4858 | </table> |
| 4859 | |
| 4860 | ### Example |
| 4861 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4862 | <div><fiddle-embed name="7f27c93472aa99a7542fb3493076f072"><div>Simplifies three <a href="#Glyph">Glyphs</a> to eliminate overlaps, and strokes the result.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4863 | |
| 4864 | --- |
| 4865 | |
| 4866 | # <a name="Text_Intercepts"></a> Text Intercepts |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4867 | <a href="#Text_Intercepts">Text Intercepts</a> describe the intersection of drawn text <a href="#Glyph">Glyphs</a> with a pair |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4868 | of lines parallel to the text advance. <a href="#Text_Intercepts">Text Intercepts</a> permits creating a |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4869 | underline that skips Descenders. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4870 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4871 | <a name="SkPaint_getTextIntercepts"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4872 | ## getTextIntercepts |
| 4873 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4874 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4875 | int getTextIntercepts(const void* text, size_t length, SkScalar x, SkScalar y, |
| 4876 | const SkScalar bounds[2], SkScalar* intervals) const |
| 4877 | </pre> |
| 4878 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4879 | Returns the number of <a href="#SkPaint_getTextIntercepts_intervals">intervals</a> that intersect <a href="#SkPaint_getTextIntercepts_bounds">bounds</a>. |
| 4880 | <a href="#SkPaint_getTextIntercepts_bounds">bounds</a> describes a pair of lines parallel to the <a href="#SkPaint_getTextIntercepts_text">text</a> advance. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4881 | The return count is zero or a multiple of two, and is at most twice the number of <a href="#Glyph">Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4882 | the string. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4883 | 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, |
| 4884 | 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. |
| 4885 | 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>. |
| 4886 | Pass nullptr for <a href="#SkPaint_getTextIntercepts_intervals">intervals</a> to determine the size of the interval array. |
| 4887 | <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] | 4888 | |
| 4889 | ### Parameters |
| 4890 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4891 | <table> <tr> <td><a name="SkPaint_getTextIntercepts_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4892 | character codes or glyph indices</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4893 | </tr> <tr> <td><a name="SkPaint_getTextIntercepts_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4894 | number of bytes of <a href="#SkPaint_getTextIntercepts_text">text</a></td> |
| 4895 | </tr> <tr> <td><a name="SkPaint_getTextIntercepts_x"> <code><strong>x </strong></code> </a></td> <td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4896 | <a href="#SkPaint_getTextIntercepts_x">x</a>-coordinate of the origin of the <a href="#SkPaint_getTextIntercepts_text">text</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4897 | </tr> <tr> <td><a name="SkPaint_getTextIntercepts_y"> <code><strong>y </strong></code> </a></td> <td> |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4898 | <a href="#SkPaint_getTextIntercepts_y">y</a>-coordinate of the origin of the <a href="#SkPaint_getTextIntercepts_text">text</a></td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4899 | </tr> <tr> <td><a name="SkPaint_getTextIntercepts_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4900 | lower and upper line parallel to the advance</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4901 | </tr> <tr> <td><a name="SkPaint_getTextIntercepts_intervals"> <code><strong>intervals </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4902 | returned intersections; may be nullptr</td> |
| 4903 | </tr> |
| 4904 | </table> |
| 4905 | |
| 4906 | ### Return Value |
| 4907 | |
| 4908 | number of intersections; may be zero |
| 4909 | |
| 4910 | ### Example |
| 4911 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4912 | <div><fiddle-embed name="2a0b80ed20d193c688085b79deb5bdc9"><div>Underline uses intercepts to draw on either side of the glyph Descender.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4913 | |
| 4914 | --- |
| 4915 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4916 | <a name="SkPaint_getPosTextIntercepts"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4917 | ## getPosTextIntercepts |
| 4918 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4919 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4920 | int getPosTextIntercepts(const void* text, size_t length, const SkPoint pos[], |
| 4921 | const SkScalar bounds[2], SkScalar* intervals) const |
| 4922 | </pre> |
| 4923 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4924 | Returns the number of <a href="#SkPaint_getPosTextIntercepts_intervals">intervals</a> that intersect <a href="#SkPaint_getPosTextIntercepts_bounds">bounds</a>. |
| 4925 | <a href="#SkPaint_getPosTextIntercepts_bounds">bounds</a> describes a pair of lines parallel to the <a href="#SkPaint_getPosTextIntercepts_text">text</a> advance. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4926 | The return count is zero or a multiple of two, and is at most twice the number of <a href="#Glyph">Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4927 | the string. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4928 | 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, |
| 4929 | 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. |
| 4930 | 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>. |
| 4931 | Pass nullptr for <a href="#SkPaint_getPosTextIntercepts_intervals">intervals</a> to determine the size of the interval array. |
| 4932 | <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] | 4933 | |
| 4934 | ### Parameters |
| 4935 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4936 | <table> <tr> <td><a name="SkPaint_getPosTextIntercepts_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4937 | character codes or glyph indices</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4938 | </tr> <tr> <td><a name="SkPaint_getPosTextIntercepts_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4939 | number of bytes of <a href="#SkPaint_getPosTextIntercepts_text">text</a></td> |
| 4940 | </tr> <tr> <td><a name="SkPaint_getPosTextIntercepts_pos"> <code><strong>pos </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4941 | positions of each glyph</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4942 | </tr> <tr> <td><a name="SkPaint_getPosTextIntercepts_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4943 | lower and upper line parallel to the advance</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4944 | </tr> <tr> <td><a name="SkPaint_getPosTextIntercepts_intervals"> <code><strong>intervals </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4945 | returned intersections; may be nullptr</td> |
| 4946 | </tr> |
| 4947 | </table> |
| 4948 | |
| 4949 | ### Return Value |
| 4950 | |
Cary Clark | a523d2d | 2017-08-30 08:58:10 -0400 | [diff] [blame] | 4951 | number of intersections; may be zero |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4952 | |
| 4953 | ### Example |
| 4954 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4955 | <div><fiddle-embed name="98b2dfc552d0540a7c041fe7a2839bd7"><div><a href="undocumented#Text">Text</a> intercepts draw on either side of, but not inside, <a href="#Glyph">Glyphs</a> in a run.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4956 | |
| 4957 | --- |
| 4958 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 4959 | <a name="SkPaint_getPosTextHIntercepts"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4960 | ## getPosTextHIntercepts |
| 4961 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 4962 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 4963 | int getPosTextHIntercepts(const void* text, size_t length, const SkScalar xpos[], SkScalar constY, |
| 4964 | const SkScalar bounds[2], SkScalar* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4965 | </pre> |
| 4966 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4967 | Returns the number of <a href="#SkPaint_getPosTextHIntercepts_intervals">intervals</a> that intersect <a href="#SkPaint_getPosTextHIntercepts_bounds">bounds</a>. |
| 4968 | <a href="#SkPaint_getPosTextHIntercepts_bounds">bounds</a> describes a pair of lines parallel to the <a href="#SkPaint_getPosTextHIntercepts_text">text</a> advance. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 4969 | The return count is zero or a multiple of two, and is at most twice the number of <a href="#Glyph">Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 4970 | the string. |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4971 | 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, |
| 4972 | 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. |
| 4973 | 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>. |
| 4974 | Pass nullptr for <a href="#SkPaint_getPosTextHIntercepts_intervals">intervals</a> to determine the size of the interval array. |
| 4975 | <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] | 4976 | |
| 4977 | ### Parameters |
| 4978 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4979 | <table> <tr> <td><a name="SkPaint_getPosTextHIntercepts_text"> <code><strong>text </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4980 | character codes or glyph indices</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4981 | </tr> <tr> <td><a name="SkPaint_getPosTextHIntercepts_length"> <code><strong>length </strong></code> </a></td> <td> |
| 4982 | number of bytes of <a href="#SkPaint_getPosTextHIntercepts_text">text</a></td> |
| 4983 | </tr> <tr> <td><a name="SkPaint_getPosTextHIntercepts_xpos"> <code><strong>xpos </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4984 | positions of each glyph in x</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4985 | </tr> <tr> <td><a name="SkPaint_getPosTextHIntercepts_constY"> <code><strong>constY </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4986 | position of each glyph in y</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4987 | </tr> <tr> <td><a name="SkPaint_getPosTextHIntercepts_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4988 | lower and upper line parallel to the advance</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 4989 | </tr> <tr> <td><a name="SkPaint_getPosTextHIntercepts_intervals"> <code><strong>intervals </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 4990 | returned intersections; may be nullptr</td> |
| 4991 | </tr> |
| 4992 | </table> |
| 4993 | |
| 4994 | ### Return Value |
| 4995 | |
| 4996 | number of intersections; may be zero |
| 4997 | |
| 4998 | ### Example |
| 4999 | |
Cary Clark | 4c06f5e | 2017-08-04 12:48:24 -0400 | [diff] [blame] | 5000 | <div><fiddle-embed name="dc9851c43acc3716aca8c9a4d40d452d"><div><a href="undocumented#Text">Text</a> intercepts do not take stroke thickness into consideration.</div></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5001 | |
| 5002 | --- |
| 5003 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5004 | <a name="SkPaint_getTextBlobIntercepts"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5005 | ## getTextBlobIntercepts |
| 5006 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5007 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 5008 | int getTextBlobIntercepts(const SkTextBlob* blob, const SkScalar bounds[2], SkScalar* intervals) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5009 | </pre> |
| 5010 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5011 | Returns the number of <a href="#SkPaint_getTextBlobIntercepts_intervals">intervals</a> that intersect <a href="#SkPaint_getTextBlobIntercepts_bounds">bounds</a>. |
| 5012 | <a href="#SkPaint_getTextBlobIntercepts_bounds">bounds</a> describes a pair of lines parallel to the text advance. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5013 | The return count is zero or a multiple of two, and is at most twice the number of <a href="#Glyph">Glyphs</a> in |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5014 | the string. |
Cary Clark | 3cd22cc | 2017-12-01 11:49:58 -0500 | [diff] [blame] | 5015 | Uses <a href="undocumented#Typeface">Typeface</a> to get the glyph paths, |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5016 | 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. |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5017 | Uses run array and <a href="#Text_Align">Text Align</a> to position <a href="#SkPaint_getTextBlobIntercepts_intervals">intervals</a>. |
Cary Clark | 3cd22cc | 2017-12-01 11:49:58 -0500 | [diff] [blame] | 5018 | <a href="#Text_Encoding">Text Encoding</a> must be set to <a href="#SkPaint_kGlyphID_TextEncoding">SkPaint::kGlyphID TextEncoding</a>. |
| 5019 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5020 | Pass nullptr for <a href="#SkPaint_getTextBlobIntercepts_intervals">intervals</a> to determine the size of the interval array. |
| 5021 | <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] | 5022 | |
| 5023 | ### Parameters |
| 5024 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5025 | <table> <tr> <td><a name="SkPaint_getTextBlobIntercepts_blob"> <code><strong>blob </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5026 | <a href="#Glyph">Glyphs</a>, positions, and text paint attributes</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5027 | </tr> <tr> <td><a name="SkPaint_getTextBlobIntercepts_bounds"> <code><strong>bounds </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5028 | lower and upper line parallel to the advance</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5029 | </tr> <tr> <td><a name="SkPaint_getTextBlobIntercepts_intervals"> <code><strong>intervals </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5030 | returned intersections; may be nullptr</td> |
| 5031 | </tr> |
| 5032 | </table> |
| 5033 | |
| 5034 | ### Return Value |
| 5035 | |
| 5036 | number of intersections; may be zero |
| 5037 | |
| 5038 | ### Example |
| 5039 | |
Cary Clark | 3cd22cc | 2017-12-01 11:49:58 -0500 | [diff] [blame] | 5040 | <div><fiddle-embed name="71959a66b2290d70003887c0de339266"></fiddle-embed></div> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5041 | |
| 5042 | --- |
| 5043 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5044 | <a name="SkPaint_nothingToDraw"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5045 | ## nothingToDraw |
| 5046 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5047 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5048 | bool nothingToDraw() const |
| 5049 | </pre> |
| 5050 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5051 | Returns true if <a href="#Paint">Paint</a> prevents all drawing; |
| 5052 | 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] | 5053 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5054 | Returns true if, for example, <a href="undocumented#Blend_Mode">Blend Mode</a> combined with <a href="#Alpha">Color Alpha</a> computes a |
| 5055 | new <a href="#Alpha">Alpha</a> of zero. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5056 | |
| 5057 | ### Return Value |
| 5058 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5059 | true if <a href="#Paint">Paint</a> prevents all drawing |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5060 | |
| 5061 | ### Example |
| 5062 | |
| 5063 | <div><fiddle-embed name="fc5a771b915ac341f56554f01d282831"> |
| 5064 | |
| 5065 | #### Example Output |
| 5066 | |
| 5067 | ~~~~ |
| 5068 | initial nothing to draw: false |
| 5069 | blend dst nothing to draw: true |
| 5070 | blend src over nothing to draw: false |
| 5071 | alpha 0 nothing to draw: true |
| 5072 | ~~~~ |
| 5073 | |
| 5074 | </fiddle-embed></div> |
| 5075 | |
| 5076 | --- |
| 5077 | |
| 5078 | # <a name="Fast_Bounds"></a> Fast Bounds |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5079 | <a href="#Fast_Bounds">Fast Bounds</a> methods conservatively outset a drawing bounds by additional area |
| 5080 | <a href="#Paint">Paint</a> may draw to. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5081 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5082 | <a name="SkPaint_canComputeFastBounds"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5083 | ## canComputeFastBounds |
| 5084 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5085 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5086 | bool canComputeFastBounds() const |
| 5087 | </pre> |
| 5088 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5089 | Returns true if <a href="#Paint">Paint</a> does not include elements requiring extensive computation |
| 5090 | 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] | 5091 | always returns false. |
| 5092 | |
| 5093 | ### Return Value |
| 5094 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5095 | 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] | 5096 | |
| 5097 | --- |
| 5098 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5099 | <a name="SkPaint_computeFastBounds"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5100 | ## computeFastBounds |
| 5101 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5102 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5103 | const SkRect& computeFastBounds(const SkRect& orig, SkRect* storage) const |
| 5104 | </pre> |
| 5105 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5106 | 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] | 5107 | raw rectangle (the raw bounds of a shape), and adjusts it for stylistic |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5108 | 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] | 5109 | parameter. It returns the adjusted bounds that can then be used |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5110 | for <a href="#SkCanvas_quickReject">SkCanvas::quickReject</a> tests. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5111 | |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 5112 | 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 |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5113 | should not rely on <a href="#SkPaint_computeFastBounds_storage">storage</a> being set to the result, but should always |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5114 | 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 |
Cary Clark | bc5697d | 2017-10-04 14:31:33 -0400 | [diff] [blame] | 5115 | <a href="SkRect_Reference#Rect">Rect</a>. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5116 | |
| 5117 | ### Parameters |
| 5118 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5119 | <table> <tr> <td><a name="SkPaint_computeFastBounds_orig"> <code><strong>orig </strong></code> </a></td> <td> |
| 5120 | geometry modified by <a href="#Paint">Paint</a> when drawn</td> |
| 5121 | </tr> <tr> <td><a name="SkPaint_computeFastBounds_storage"> <code><strong>storage </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5122 | computed bounds of geometry; may not be nullptr</td> |
| 5123 | </tr> |
| 5124 | </table> |
| 5125 | |
| 5126 | ### Return Value |
| 5127 | |
| 5128 | fast computed bounds |
| 5129 | |
| 5130 | --- |
| 5131 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5132 | <a name="SkPaint_computeFastStrokeBounds"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5133 | ## computeFastStrokeBounds |
| 5134 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5135 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5136 | const SkRect& computeFastStrokeBounds(const SkRect& orig, SkRect* storage) const |
| 5137 | </pre> |
| 5138 | |
| 5139 | ### Parameters |
| 5140 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5141 | <table> <tr> <td><a name="SkPaint_computeFastStrokeBounds_orig"> <code><strong>orig </strong></code> </a></td> <td> |
| 5142 | geometry modified by <a href="#Paint">Paint</a> when drawn</td> |
| 5143 | </tr> <tr> <td><a name="SkPaint_computeFastStrokeBounds_storage"> <code><strong>storage </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5144 | computed bounds of geometry</td> |
| 5145 | </tr> |
| 5146 | </table> |
| 5147 | |
| 5148 | ### Return Value |
| 5149 | |
| 5150 | fast computed bounds |
| 5151 | |
| 5152 | --- |
| 5153 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5154 | <a name="SkPaint_doComputeFastBounds"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5155 | ## doComputeFastBounds |
| 5156 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5157 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
| 5158 | const SkRect& doComputeFastBounds(const SkRect& orig, SkRect* storage, Style style) const |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5159 | </pre> |
| 5160 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5161 | Computes the bounds, overriding the <a href="#Paint">Paint</a> <a href="#SkPaint_Style">Style</a>. This can be used to |
| 5162 | account for additional width required by stroking <a href="#SkPaint_doComputeFastBounds_orig">orig</a>, without |
| 5163 | altering <a href="#SkPaint_Style">Style</a> set to fill. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5164 | |
| 5165 | ### Parameters |
| 5166 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5167 | <table> <tr> <td><a name="SkPaint_doComputeFastBounds_orig"> <code><strong>orig </strong></code> </a></td> <td> |
| 5168 | geometry modified by <a href="#Paint">Paint</a> when drawn</td> |
| 5169 | </tr> <tr> <td><a name="SkPaint_doComputeFastBounds_storage"> <code><strong>storage </strong></code> </a></td> <td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5170 | computed bounds of geometry</td> |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5171 | </tr> <tr> <td><a name="SkPaint_doComputeFastBounds_style"> <code><strong>style </strong></code> </a></td> <td> |
| 5172 | overrides <a href="#SkPaint_Style">Style</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5173 | </tr> |
| 5174 | </table> |
| 5175 | |
| 5176 | ### Return Value |
| 5177 | |
| 5178 | fast computed bounds |
| 5179 | |
| 5180 | --- |
| 5181 | |
Cary Clark | 493df1f | 2017-08-25 13:14:33 -0400 | [diff] [blame] | 5182 | <a name="SkPaint_toString"></a> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5183 | ## toString |
| 5184 | |
Cary Clark | a560c47 | 2017-11-27 10:44:06 -0500 | [diff] [blame] | 5185 | <pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0"> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5186 | void toString(SkString* str) const; |
| 5187 | </pre> |
| 5188 | |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5189 | Creates string representation of <a href="#Paint">Paint</a>. The representation is read by |
| 5190 | internal debugging tools. The interface and implementation may be |
Cary Clark | 7cfcbca | 2018-01-04 16:11:51 -0500 | [diff] [blame] | 5191 | suppressed by defining SK_IGNORE_TO_STRING. |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5192 | |
| 5193 | ### Parameters |
| 5194 | |
Cary Clark | 8cc16c7 | 2017-08-25 11:51:49 -0400 | [diff] [blame] | 5195 | <table> <tr> <td><a name="SkPaint_toString_str"> <code><strong>str </strong></code> </a></td> <td> |
Cary Clark | ce10124 | 2017-09-01 15:51:02 -0400 | [diff] [blame] | 5196 | storage for string representation of <a href="#Paint">Paint</a></td> |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5197 | </tr> |
| 5198 | </table> |
| 5199 | |
| 5200 | ### Example |
| 5201 | |
| 5202 | <div><fiddle-embed name="5670c04b4562908169a776c48c92d104"> |
| 5203 | |
| 5204 | #### Example Output |
| 5205 | |
| 5206 | ~~~~ |
| 5207 | text size = 12 |
| 5208 | ~~~~ |
| 5209 | |
| 5210 | </fiddle-embed></div> |
| 5211 | |
Cary Clark | 2ade997 | 2017-11-02 17:49:34 -0400 | [diff] [blame] | 5212 | ### See Also |
| 5213 | |
| 5214 | <a href="#SkPathEffect_toString">SkPathEffect::toString</a> <a href="#SkMaskFilter_toString">SkMaskFilter::toString</a> <a href="#SkColorFilter_toString">SkColorFilter::toString</a> <a href="#SkImageFilter_toString">SkImageFilter::toString</a> |
| 5215 | |
Cary Clark | 12799e1 | 2017-07-28 15:18:29 -0400 | [diff] [blame] | 5216 | --- |
| 5217 | |