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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org> |
4 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. | 4 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
5 * Copyright (C) 2011 Dirk Schulze <krit@webkit.org> | 5 * Copyright (C) 2011 Dirk Schulze <krit@webkit.org> |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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67 | 67 |
68 bool LayoutSVGResourceClipper::tryPathOnlyClipping(DisplayItemClient client, Gra
phicsContext* context, | 68 bool LayoutSVGResourceClipper::tryPathOnlyClipping(DisplayItemClient client, Gra
phicsContext* context, |
69 const AffineTransform& animatedLocalTransform, const FloatRect& objectBoundi
ngBox) { | 69 const AffineTransform& animatedLocalTransform, const FloatRect& objectBoundi
ngBox) { |
70 // If the current clip-path gets clipped itself, we have to fallback to mask
ing. | 70 // If the current clip-path gets clipped itself, we have to fallback to mask
ing. |
71 if (!style()->svgStyle().clipperResource().isEmpty()) | 71 if (!style()->svgStyle().clipperResource().isEmpty()) |
72 return false; | 72 return false; |
73 WindRule clipRule = RULE_NONZERO; | 73 WindRule clipRule = RULE_NONZERO; |
74 Path clipPath = Path(); | 74 Path clipPath = Path(); |
75 | 75 |
76 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { | 76 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { |
77 LayoutObject* renderer = childElement->renderer(); | 77 LayoutObject* renderer = childElement->layoutObject(); |
78 if (!renderer) | 78 if (!renderer) |
79 continue; | 79 continue; |
80 // Only shapes or paths are supported for direct clipping. We need to fa
llback to masking for texts. | 80 // Only shapes or paths are supported for direct clipping. We need to fa
llback to masking for texts. |
81 if (renderer->isSVGText()) | 81 if (renderer->isSVGText()) |
82 return false; | 82 return false; |
83 if (!childElement->isSVGGraphicsElement()) | 83 if (!childElement->isSVGGraphicsElement()) |
84 continue; | 84 continue; |
85 SVGGraphicsElement* styled = toSVGGraphicsElement(childElement); | 85 SVGGraphicsElement* styled = toSVGGraphicsElement(childElement); |
86 const LayoutStyle* style = renderer->style(); | 86 const LayoutStyle* style = renderer->style(); |
87 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) | 87 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) |
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154 // userSpaceOnUse units (http://crbug.com/294900). | 154 // userSpaceOnUse units (http://crbug.com/294900). |
155 FloatRect bounds = strokeBoundingBox(); | 155 FloatRect bounds = strokeBoundingBox(); |
156 | 156 |
157 OwnPtr<DisplayItemList> displayItemList; | 157 OwnPtr<DisplayItemList> displayItemList; |
158 if (RuntimeEnabledFeatures::slimmingPaintEnabled()) | 158 if (RuntimeEnabledFeatures::slimmingPaintEnabled()) |
159 displayItemList = DisplayItemList::create(); | 159 displayItemList = DisplayItemList::create(); |
160 GraphicsContext context(nullptr, displayItemList.get()); | 160 GraphicsContext context(nullptr, displayItemList.get()); |
161 context.beginRecording(bounds); | 161 context.beginRecording(bounds); |
162 | 162 |
163 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { | 163 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { |
164 LayoutObject* renderer = childElement->renderer(); | 164 LayoutObject* renderer = childElement->layoutObject(); |
165 if (!renderer) | 165 if (!renderer) |
166 continue; | 166 continue; |
167 | 167 |
168 const LayoutStyle* style = renderer->style(); | 168 const LayoutStyle* style = renderer->style(); |
169 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) | 169 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) |
170 continue; | 170 continue; |
171 | 171 |
172 WindRule newClipRule = style->svgStyle().clipRule(); | 172 WindRule newClipRule = style->svgStyle().clipRule(); |
173 bool isUseElement = isSVGUseElement(*childElement); | 173 bool isUseElement = isSVGUseElement(*childElement); |
174 if (isUseElement) { | 174 if (isUseElement) { |
175 SVGUseElement& useElement = toSVGUseElement(*childElement); | 175 SVGUseElement& useElement = toSVGUseElement(*childElement); |
176 renderer = useElement.rendererClipChild(); | 176 renderer = useElement.rendererClipChild(); |
177 if (!renderer) | 177 if (!renderer) |
178 continue; | 178 continue; |
179 if (!useElement.hasAttribute(SVGNames::clip_ruleAttr)) | 179 if (!useElement.hasAttribute(SVGNames::clip_ruleAttr)) |
180 newClipRule = renderer->style()->svgStyle().clipRule(); | 180 newClipRule = renderer->style()->svgStyle().clipRule(); |
181 } | 181 } |
182 | 182 |
183 // Only shapes, paths and texts are allowed for clipping. | 183 // Only shapes, paths and texts are allowed for clipping. |
184 if (!renderer->isSVGShape() && !renderer->isSVGText()) | 184 if (!renderer->isSVGShape() && !renderer->isSVGText()) |
185 continue; | 185 continue; |
186 | 186 |
187 context.setFillRule(newClipRule); | 187 context.setFillRule(newClipRule); |
188 | 188 |
189 if (isUseElement) | 189 if (isUseElement) |
190 renderer = childElement->renderer(); | 190 renderer = childElement->layoutObject(); |
191 | 191 |
192 // Switch to a paint behavior where all children of this <clipPath> will
be rendered using special constraints: | 192 // Switch to a paint behavior where all children of this <clipPath> will
be rendered using special constraints: |
193 // - fill-opacity/stroke-opacity/opacity set to 1 | 193 // - fill-opacity/stroke-opacity/opacity set to 1 |
194 // - masker/filter not applied when rendering the children | 194 // - masker/filter not applied when rendering the children |
195 // - fill is set to the initial fill paint server (solid, black) | 195 // - fill is set to the initial fill paint server (solid, black) |
196 // - stroke is set to the initial stroke paint server (none) | 196 // - stroke is set to the initial stroke paint server (none) |
197 PaintInfo info(&context, LayoutRect::infiniteIntRect(), PaintPhaseForegr
ound, PaintBehaviorRenderingClipPathAsMask); | 197 PaintInfo info(&context, LayoutRect::infiniteIntRect(), PaintPhaseForegr
ound, PaintBehaviorRenderingClipPathAsMask); |
198 renderer->paint(info, IntPoint()); | 198 renderer->paint(info, IntPoint()); |
199 } | 199 } |
200 | 200 |
201 if (displayItemList) | 201 if (displayItemList) |
202 displayItemList->replay(&context); | 202 displayItemList->replay(&context); |
203 m_clipContentPicture = context.endRecording(); | 203 m_clipContentPicture = context.endRecording(); |
204 return m_clipContentPicture; | 204 return m_clipContentPicture; |
205 } | 205 } |
206 | 206 |
207 void LayoutSVGResourceClipper::calculateClipContentPaintInvalidationRect() | 207 void LayoutSVGResourceClipper::calculateClipContentPaintInvalidationRect() |
208 { | 208 { |
209 // This is a rough heuristic to appraise the clip size and doesn't consider
clip on clip. | 209 // This is a rough heuristic to appraise the clip size and doesn't consider
clip on clip. |
210 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { | 210 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { |
211 LayoutObject* renderer = childElement->renderer(); | 211 LayoutObject* renderer = childElement->layoutObject(); |
212 if (!renderer) | 212 if (!renderer) |
213 continue; | 213 continue; |
214 if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElemen
t(*childElement)) | 214 if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElemen
t(*childElement)) |
215 continue; | 215 continue; |
216 const LayoutStyle* style = renderer->style(); | 216 const LayoutStyle* style = renderer->style(); |
217 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) | 217 if (!style || style->display() == NONE || style->visibility() != VISIBLE
) |
218 continue; | 218 continue; |
219 m_clipBoundaries.unite(renderer->localToParentTransform().mapRect(render
er->paintInvalidationRectInLocalCoordinates())); | 219 m_clipBoundaries.unite(renderer->localToParentTransform().mapRect(render
er->paintInvalidationRectInLocalCoordinates())); |
220 } | 220 } |
221 m_clipBoundaries = toSVGClipPathElement(element())->calculateAnimatedLocalTr
ansform().mapRect(m_clipBoundaries); | 221 m_clipBoundaries = toSVGClipPathElement(element())->calculateAnimatedLocalTr
ansform().mapRect(m_clipBoundaries); |
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234 point = transform.inverse().mapPoint(point); | 234 point = transform.inverse().mapPoint(point); |
235 } | 235 } |
236 | 236 |
237 AffineTransform animatedLocalTransform = toSVGClipPathElement(element())->ca
lculateAnimatedLocalTransform(); | 237 AffineTransform animatedLocalTransform = toSVGClipPathElement(element())->ca
lculateAnimatedLocalTransform(); |
238 if (!animatedLocalTransform.isInvertible()) | 238 if (!animatedLocalTransform.isInvertible()) |
239 return false; | 239 return false; |
240 | 240 |
241 point = animatedLocalTransform.inverse().mapPoint(point); | 241 point = animatedLocalTransform.inverse().mapPoint(point); |
242 | 242 |
243 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { | 243 for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()
); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement
)) { |
244 LayoutObject* renderer = childElement->renderer(); | 244 LayoutObject* renderer = childElement->layoutObject(); |
245 if (!renderer) | 245 if (!renderer) |
246 continue; | 246 continue; |
247 if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElemen
t(*childElement)) | 247 if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElemen
t(*childElement)) |
248 continue; | 248 continue; |
249 IntPoint hitPoint; | 249 IntPoint hitPoint; |
250 HitTestResult result(hitPoint); | 250 HitTestResult result(hitPoint); |
251 if (renderer->nodeAtFloatPoint(HitTestRequest(HitTestRequest::SVGClipCon
tent), result, point, HitTestForeground)) | 251 if (renderer->nodeAtFloatPoint(HitTestRequest(HitTestRequest::SVGClipCon
tent), result, point, HitTestForeground)) |
252 return true; | 252 return true; |
253 } | 253 } |
254 | 254 |
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269 AffineTransform transform; | 269 AffineTransform transform; |
270 transform.translate(objectBoundingBox.x(), objectBoundingBox.y()); | 270 transform.translate(objectBoundingBox.x(), objectBoundingBox.y()); |
271 transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.h
eight()); | 271 transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.h
eight()); |
272 return transform.mapRect(m_clipBoundaries); | 272 return transform.mapRect(m_clipBoundaries); |
273 } | 273 } |
274 | 274 |
275 return m_clipBoundaries; | 275 return m_clipBoundaries; |
276 } | 276 } |
277 | 277 |
278 } | 278 } |
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