reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | /* libs/graphics/animator/SkDrawPaint.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #include "SkDrawPaint.h" |
| 19 | #include "SkAnimateMaker.h" |
| 20 | #include "SkDrawColor.h" |
| 21 | #include "SkDrawShader.h" |
| 22 | #include "SkMaskFilter.h" |
| 23 | #include "SkPaintParts.h" |
| 24 | #include "SkPathEffect.h" |
| 25 | |
| 26 | enum SkPaint_Functions { |
| 27 | SK_FUNCTION(measureText) |
| 28 | }; |
| 29 | |
| 30 | enum SkPaint_Properties { |
| 31 | SK_PROPERTY(ascent), |
| 32 | SK_PROPERTY(descent) |
| 33 | }; |
| 34 | |
| 35 | // !!! in the future, this could be compiled by build-condensed-info into an array of parameters |
| 36 | // with a lookup table to find the first parameter -- for now, it is iteratively searched through |
| 37 | const SkFunctionParamType SkDrawPaint::fFunctionParameters[] = { |
| 38 | (SkFunctionParamType) SkType_String, |
| 39 | (SkFunctionParamType) 0 // terminator for parameter list (there may be multiple parameter lists) |
| 40 | }; |
| 41 | |
| 42 | |
| 43 | #if SK_USE_CONDENSED_INFO == 0 |
| 44 | |
| 45 | const SkMemberInfo SkDrawPaint::fInfo[] = { |
| 46 | SK_MEMBER(antiAlias, Boolean), |
| 47 | SK_MEMBER_PROPERTY(ascent, Float), |
| 48 | SK_MEMBER(color, Color), |
| 49 | SK_MEMBER_PROPERTY(descent, Float), |
| 50 | SK_MEMBER(fakeBold, Boolean), |
| 51 | SK_MEMBER(filterBitmap, Boolean), |
| 52 | SK_MEMBER(linearText, Boolean), |
| 53 | SK_MEMBER(maskFilter, MaskFilter), |
| 54 | SK_MEMBER_FUNCTION(measureText, Float), |
| 55 | SK_MEMBER(pathEffect, PathEffect), |
| 56 | SK_MEMBER(shader, Shader), |
| 57 | SK_MEMBER(strikeThru, Boolean), |
| 58 | SK_MEMBER(stroke, Boolean), |
| 59 | SK_MEMBER(strokeCap, Cap), |
| 60 | SK_MEMBER(strokeJoin, Join), |
| 61 | SK_MEMBER(strokeMiter, Float), |
| 62 | SK_MEMBER(strokeWidth, Float), |
| 63 | SK_MEMBER(style, Style), |
| 64 | SK_MEMBER(textAlign, Align), |
| 65 | SK_MEMBER(textScaleX, Float), |
| 66 | SK_MEMBER(textSize, Float), |
| 67 | SK_MEMBER(textSkewX, Float), |
| 68 | SK_MEMBER(typeface, Typeface), |
| 69 | SK_MEMBER(underline, Boolean), |
| 70 | SK_MEMBER(xfermode, Xfermode) |
| 71 | }; |
| 72 | |
| 73 | #endif |
| 74 | |
| 75 | DEFINE_GET_MEMBER(SkDrawPaint); |
| 76 | |
| 77 | SkDrawPaint::SkDrawPaint() : antiAlias(-1), color(NULL), fakeBold(-1), filterBitmap(-1), |
| 78 | linearText(-1), maskFilter((SkDrawMaskFilter*) -1), pathEffect((SkDrawPathEffect*) -1), |
| 79 | shader((SkDrawShader*) -1), strikeThru(-1), stroke(-1), |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 80 | strokeCap((SkPaint::Cap) -1), strokeJoin((SkPaint::Join) -1), strokeMiter(SK_ScalarNaN), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | strokeWidth(SK_ScalarNaN), style((SkPaint::Style) -1), |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 82 | textAlign((SkPaint::Align) -1), textScaleX(SK_ScalarNaN), textSize(SK_ScalarNaN), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | textSkewX(SK_ScalarNaN), typeface((SkDrawTypeface*) -1), |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 84 | underline(-1), xfermode((SkXfermode::Mode) -1), fOwnsColor(false), fOwnsMaskFilter(false), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 85 | fOwnsPathEffect(false), fOwnsShader(false), fOwnsTypeface(false) { |
| 86 | } |
| 87 | |
| 88 | SkDrawPaint::~SkDrawPaint() { |
| 89 | if (fOwnsColor) |
| 90 | delete color; |
| 91 | if (fOwnsMaskFilter) |
| 92 | delete maskFilter; |
| 93 | if (fOwnsPathEffect) |
| 94 | delete pathEffect; |
| 95 | if (fOwnsShader) |
| 96 | delete shader; |
| 97 | if (fOwnsTypeface) |
| 98 | delete typeface; |
| 99 | } |
| 100 | |
tomhudson@google.com | d6caf2e | 2011-07-08 14:41:12 +0000 | [diff] [blame^] | 101 | bool SkDrawPaint::add(SkAnimateMaker* maker, SkDisplayable* child) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 102 | SkASSERT(child && child->isPaintPart()); |
| 103 | SkPaintPart* part = (SkPaintPart*) child; |
tomhudson@google.com | d6caf2e | 2011-07-08 14:41:12 +0000 | [diff] [blame^] | 104 | if (part->add() && maker) |
| 105 | maker->setErrorCode(SkDisplayXMLParserError::kErrorAddingToPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 106 | return true; |
| 107 | } |
| 108 | |
| 109 | SkDisplayable* SkDrawPaint::deepCopy(SkAnimateMaker* maker) { |
| 110 | SkDrawColor* tempColor = color; |
| 111 | color = NULL; |
| 112 | SkDrawPaint* copy = (SkDrawPaint*) INHERITED::deepCopy(maker); |
| 113 | color = tempColor; |
| 114 | tempColor = (SkDrawColor*) color->deepCopy(maker); |
| 115 | tempColor->setParent(copy); |
| 116 | tempColor->add(); |
| 117 | copy->fOwnsColor = true; |
| 118 | return copy; |
| 119 | } |
| 120 | |
| 121 | bool SkDrawPaint::draw(SkAnimateMaker& maker) { |
| 122 | SkPaint* paint = maker.fPaint; |
| 123 | setupPaint(paint); |
| 124 | return false; |
| 125 | } |
| 126 | |
| 127 | #ifdef SK_DUMP_ENABLED |
| 128 | void SkDrawPaint::dump(SkAnimateMaker* maker) { |
| 129 | dumpBase(maker); |
| 130 | dumpAttrs(maker); |
| 131 | bool closedYet = false; |
| 132 | SkDisplayList::fIndent +=4; |
| 133 | //should i say if (maskFilter && ...? |
| 134 | if (maskFilter != (SkDrawMaskFilter*)-1) { |
| 135 | SkDebugf(">\n"); |
| 136 | maskFilter->dump(maker); |
| 137 | closedYet = true; |
| 138 | } |
| 139 | if (pathEffect != (SkDrawPathEffect*) -1) { |
| 140 | if (closedYet == false) { |
| 141 | SkDebugf(">\n"); |
| 142 | closedYet = true; |
| 143 | } |
| 144 | pathEffect->dump(maker); |
| 145 | } |
| 146 | if (fOwnsTypeface) { |
| 147 | if (closedYet == false) { |
| 148 | SkDebugf(">\n"); |
| 149 | closedYet = true; |
| 150 | } |
| 151 | typeface->dump(maker); |
| 152 | } |
| 153 | SkDisplayList::fIndent -= 4; |
| 154 | dumpChildren(maker, closedYet); |
| 155 | } |
| 156 | #endif |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 157 | |
| 158 | void SkDrawPaint::executeFunction(SkDisplayable* target, int index, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | SkTDArray<SkScriptValue>& parameters, SkDisplayTypes type, |
| 160 | SkScriptValue* scriptValue) { |
| 161 | if (scriptValue == NULL) |
| 162 | return; |
| 163 | SkASSERT(target == this); |
| 164 | switch (index) { |
| 165 | case SK_FUNCTION(measureText): { |
| 166 | SkASSERT(parameters.count() == 1); |
| 167 | SkASSERT(type == SkType_Float); |
| 168 | SkPaint paint; |
| 169 | setupPaint(&paint); |
| 170 | scriptValue->fType = SkType_Float; |
| 171 | SkASSERT(parameters[0].fType == SkType_String); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 172 | scriptValue->fOperand.fScalar = paint.measureText(parameters[0].fOperand.fString->c_str(), |
| 173 | parameters[0].fOperand.fString->size()); |
| 174 | // SkDebugf("measureText: %s = %g\n", parameters[0].fOperand.fString->c_str(), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | // scriptValue->fOperand.fScalar / 65536.0f); |
| 176 | } break; |
| 177 | default: |
| 178 | SkASSERT(0); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | const SkFunctionParamType* SkDrawPaint::getFunctionsParameters() { |
| 183 | return fFunctionParameters; |
| 184 | } |
| 185 | |
| 186 | bool SkDrawPaint::getProperty(int index, SkScriptValue* value) const { |
| 187 | SkPaint::FontMetrics metrics; |
| 188 | SkPaint paint; |
| 189 | setupPaint(&paint); |
| 190 | paint.getFontMetrics(&metrics); |
| 191 | switch (index) { |
| 192 | case SK_PROPERTY(ascent): |
| 193 | value->fOperand.fScalar = metrics.fAscent; |
| 194 | break; |
| 195 | case SK_PROPERTY(descent): |
| 196 | value->fOperand.fScalar = metrics.fDescent; |
| 197 | break; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 198 | // should consider returning fLeading as well (or roll it into ascent/descent somehow |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | default: |
| 200 | SkASSERT(0); |
| 201 | return false; |
| 202 | } |
| 203 | value->fType = SkType_Float; |
| 204 | return true; |
| 205 | } |
| 206 | |
| 207 | bool SkDrawPaint::resolveIDs(SkAnimateMaker& maker, SkDisplayable* origDisp, SkApply* ) { |
| 208 | SkASSERT(origDisp->isPaint()); |
| 209 | SkDrawPaint* original = (SkDrawPaint*) origDisp; |
| 210 | if (fOwnsColor && maker.resolveID(color, original->color) == false) |
| 211 | return true; |
| 212 | if (fOwnsMaskFilter && maker.resolveID(maskFilter, original->maskFilter) == false) |
| 213 | return true; |
| 214 | if (fOwnsPathEffect && maker.resolveID(pathEffect, original->pathEffect) == false) |
| 215 | return true; |
| 216 | if (fOwnsShader && maker.resolveID(shader, original->shader) == false) |
| 217 | return true; |
| 218 | if (fOwnsTypeface && maker.resolveID(typeface, original->typeface) == false) |
| 219 | return true; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 220 | return false; // succeeded |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | void SkDrawPaint::setupPaint(SkPaint* paint) const { |
| 224 | if (antiAlias != -1) |
| 225 | paint->setAntiAlias(SkToBool(antiAlias)); |
| 226 | if (color != NULL) |
| 227 | paint->setColor(color->getColor()); |
| 228 | if (fakeBold != -1) |
| 229 | paint->setFakeBoldText(SkToBool(fakeBold)); |
| 230 | if (filterBitmap != -1) |
| 231 | paint->setFilterBitmap(SkToBool(filterBitmap)); |
| 232 | // stroke is legacy; style setting if present overrides stroke |
| 233 | if (stroke != -1) |
| 234 | paint->setStyle(SkToBool(stroke) ? SkPaint::kStroke_Style : SkPaint::kFill_Style); |
| 235 | if (style != (SkPaint::Style) -1) |
| 236 | paint->setStyle((SkPaint::Style) style); |
| 237 | if (linearText != -1) |
| 238 | paint->setLinearText(SkToBool(linearText)); |
| 239 | if (maskFilter == NULL) |
| 240 | paint->setMaskFilter(NULL); |
| 241 | else if (maskFilter != (SkDrawMaskFilter*) -1) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 242 | SkSafeUnref(paint->setMaskFilter(maskFilter->getMaskFilter())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 243 | if (pathEffect == NULL) |
| 244 | paint->setPathEffect(NULL); |
| 245 | else if (pathEffect != (SkDrawPathEffect*) -1) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 246 | SkSafeUnref(paint->setPathEffect(pathEffect->getPathEffect())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | if (shader == NULL) |
| 248 | paint->setShader(NULL); |
| 249 | else if (shader != (SkDrawShader*) -1) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 250 | SkSafeUnref(paint->setShader(shader->getShader())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 251 | if (strikeThru != -1) |
| 252 | paint->setStrikeThruText(SkToBool(strikeThru)); |
| 253 | if (strokeCap != (SkPaint::Cap) -1) |
| 254 | paint->setStrokeCap((SkPaint::Cap) strokeCap); |
| 255 | if (strokeJoin != (SkPaint::Join) -1) |
| 256 | paint->setStrokeJoin((SkPaint::Join) strokeJoin); |
| 257 | if (SkScalarIsNaN(strokeMiter) == false) |
| 258 | paint->setStrokeMiter(strokeMiter); |
| 259 | if (SkScalarIsNaN(strokeWidth) == false) |
| 260 | paint->setStrokeWidth(strokeWidth); |
| 261 | if (textAlign != (SkPaint::Align) -1) |
| 262 | paint->setTextAlign((SkPaint::Align) textAlign); |
| 263 | if (SkScalarIsNaN(textScaleX) == false) |
| 264 | paint->setTextScaleX(textScaleX); |
| 265 | if (SkScalarIsNaN(textSize) == false) |
| 266 | paint->setTextSize(textSize); |
| 267 | if (SkScalarIsNaN(textSkewX) == false) |
| 268 | paint->setTextSkewX(textSkewX); |
| 269 | if (typeface == NULL) |
| 270 | paint->setTypeface(NULL); |
| 271 | else if (typeface != (SkDrawTypeface*) -1) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 272 | SkSafeUnref(paint->setTypeface(typeface->getTypeface())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 273 | if (underline != -1) |
| 274 | paint->setUnderlineText(SkToBool(underline)); |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 275 | if (xfermode != (SkXfermode::Mode) -1) |
reed@android.com | 0f0cfae | 2009-10-13 13:33:16 +0000 | [diff] [blame] | 276 | paint->setXfermodeMode((SkXfermode::Mode) xfermode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 277 | } |