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Side by Side Diff: third_party/WebKit/WebCore/platform/graphics/Image.cpp

Issue 21184: WebKit merge 40722:40785 (part 1) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 11 years, 10 months ago
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1 /* 1 /*
2 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) 2 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions 6 * modification, are permitted provided that the following conditions
7 * are met: 7 * are met:
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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112 } 112 }
113 113
114 FloatSize intrinsicTileSize = size(); 114 FloatSize intrinsicTileSize = size();
115 if (hasRelativeWidth()) 115 if (hasRelativeWidth())
116 intrinsicTileSize.setWidth(scaledTileSize.width()); 116 intrinsicTileSize.setWidth(scaledTileSize.width());
117 if (hasRelativeHeight()) 117 if (hasRelativeHeight())
118 intrinsicTileSize.setHeight(scaledTileSize.height()); 118 intrinsicTileSize.setHeight(scaledTileSize.height());
119 119
120 FloatSize scale(scaledTileSize.width() / intrinsicTileSize.width(), 120 FloatSize scale(scaledTileSize.width() / intrinsicTileSize.width(),
121 scaledTileSize.height() / intrinsicTileSize.height()); 121 scaledTileSize.height() / intrinsicTileSize.height());
122 TransformationMatrix patternTransform = TransformationMatrix().scale(scale.w idth(), scale.height()); 122 TransformationMatrix patternTransform = TransformationMatrix().scaleNonUnifo rm(scale.width(), scale.height());
123 123
124 FloatRect oneTileRect; 124 FloatRect oneTileRect;
125 oneTileRect.setX(destRect.x() + fmodf(fmodf(-srcPoint.x(), scaledTileSize.wi dth()) - scaledTileSize.width(), scaledTileSize.width())); 125 oneTileRect.setX(destRect.x() + fmodf(fmodf(-srcPoint.x(), scaledTileSize.wi dth()) - scaledTileSize.width(), scaledTileSize.width()));
126 oneTileRect.setY(destRect.y() + fmodf(fmodf(-srcPoint.y(), scaledTileSize.he ight()) - scaledTileSize.height(), scaledTileSize.height())); 126 oneTileRect.setY(destRect.y() + fmodf(fmodf(-srcPoint.y(), scaledTileSize.he ight()) - scaledTileSize.height(), scaledTileSize.height()));
127 oneTileRect.setSize(scaledTileSize); 127 oneTileRect.setSize(scaledTileSize);
128 128
129 // Check and see if a single draw of the image can cover the entire area we are supposed to tile. 129 // Check and see if a single draw of the image can cover the entire area we are supposed to tile.
130 if (oneTileRect.contains(destRect)) { 130 if (oneTileRect.contains(destRect)) {
131 FloatRect visibleSrcRect; 131 FloatRect visibleSrcRect;
132 visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width()); 132 visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width());
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151 return; 151 return;
152 } 152 }
153 153
154 // FIXME: We do not support 'round' yet. For now just map it to 'repeat'. 154 // FIXME: We do not support 'round' yet. For now just map it to 'repeat'.
155 if (hRule == RoundTile) 155 if (hRule == RoundTile)
156 hRule = RepeatTile; 156 hRule = RepeatTile;
157 if (vRule == RoundTile) 157 if (vRule == RoundTile)
158 vRule = RepeatTile; 158 vRule = RepeatTile;
159 159
160 FloatSize scale = calculatePatternScale(dstRect, srcRect, hRule, vRule); 160 FloatSize scale = calculatePatternScale(dstRect, srcRect, hRule, vRule);
161 TransformationMatrix patternTransform = TransformationMatrix().scale(scale.w idth(), scale.height()); 161 TransformationMatrix patternTransform = TransformationMatrix().scaleNonUnifo rm(scale.width(), scale.height());
162 162
163 // We want to construct the phase such that the pattern is centered (when st retch is not 163 // We want to construct the phase such that the pattern is centered (when st retch is not
164 // set for a particular rule). 164 // set for a particular rule).
165 float hPhase = scale.width() * srcRect.x(); 165 float hPhase = scale.width() * srcRect.x();
166 float vPhase = scale.height() * srcRect.y(); 166 float vPhase = scale.height() * srcRect.y();
167 if (hRule == Image::RepeatTile) 167 if (hRule == Image::RepeatTile)
168 hPhase -= fmodf(dstRect.width(), scale.width() * srcRect.width()) / 2.0f ; 168 hPhase -= fmodf(dstRect.width(), scale.width() * srcRect.width()) / 2.0f ;
169 if (vRule == Image::RepeatTile) 169 if (vRule == Image::RepeatTile)
170 vPhase -= fmodf(dstRect.height(), scale.height() * srcRect.height()) / 2 .0f; 170 vPhase -= fmodf(dstRect.height(), scale.height() * srcRect.height()) / 2 .0f;
171 FloatPoint patternPhase(dstRect.x() - hPhase, dstRect.y() - vPhase); 171 FloatPoint patternPhase(dstRect.x() - hPhase, dstRect.y() - vPhase);
172 172
173 drawPattern(ctxt, srcRect, patternTransform, patternPhase, op, dstRect); 173 drawPattern(ctxt, srcRect, patternTransform, patternPhase, op, dstRect);
174 174
175 startAnimation(); 175 startAnimation();
176 } 176 }
177 177
178 178
179 } 179 }
180 180
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