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1 /* | 1 /* |
2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> |
3 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 3 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
4 * | 4 * |
5 * This library is free software; you can redistribute it and/or | 5 * This library is free software; you can redistribute it and/or |
6 * modify it under the terms of the GNU Library General Public | 6 * modify it under the terms of the GNU Library General Public |
7 * License as published by the Free Software Foundation; either | 7 * License as published by the Free Software Foundation; either |
8 * version 2 of the License, or (at your option) any later version. | 8 * version 2 of the License, or (at your option) any later version. |
9 * | 9 * |
10 * This library is distributed in the hope that it will be useful, | 10 * This library is distributed in the hope that it will be useful, |
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43 markAllClientsForInvalidation(markForInvalidation ? PaintInvalidation : Pare
ntOnlyInvalidation); | 43 markAllClientsForInvalidation(markForInvalidation ? PaintInvalidation : Pare
ntOnlyInvalidation); |
44 } | 44 } |
45 | 45 |
46 void RenderSVGResourcePattern::removeClientFromCache(RenderObject* client, bool
markForInvalidation) | 46 void RenderSVGResourcePattern::removeClientFromCache(RenderObject* client, bool
markForInvalidation) |
47 { | 47 { |
48 ASSERT(client); | 48 ASSERT(client); |
49 m_patternMap.remove(client); | 49 m_patternMap.remove(client); |
50 markClientForInvalidation(client, markForInvalidation ? PaintInvalidation :
ParentOnlyInvalidation); | 50 markClientForInvalidation(client, markForInvalidation ? PaintInvalidation :
ParentOnlyInvalidation); |
51 } | 51 } |
52 | 52 |
53 PatternData* RenderSVGResourcePattern::buildPattern(RenderObject* object, const
SVGPatternElement* patternElement) | 53 PatternData* RenderSVGResourcePattern::buildPattern(const RenderObject& object,
const SVGPatternElement* patternElement) |
54 { | 54 { |
55 ASSERT(object); | 55 PatternData* currentData = m_patternMap.get(&object); |
56 PatternData* currentData = m_patternMap.get(object); | |
57 if (currentData && currentData->pattern) | 56 if (currentData && currentData->pattern) |
58 return currentData; | 57 return currentData; |
59 | 58 |
60 // If we couldn't determine the pattern content element root, stop here. | 59 // If we couldn't determine the pattern content element root, stop here. |
61 if (!m_attributes.patternContentElement()) | 60 if (!m_attributes.patternContentElement()) |
62 return 0; | 61 return 0; |
63 | 62 |
64 // An empty viewBox disables rendering. | 63 // An empty viewBox disables rendering. |
65 if (m_attributes.hasViewBox() && m_attributes.viewBox().isEmpty()) | 64 if (m_attributes.hasViewBox() && m_attributes.viewBox().isEmpty()) |
66 return 0; | 65 return 0; |
67 | 66 |
68 // Compute all necessary transformations to build the tile image & the patte
rn. | 67 // Compute all necessary transformations to build the tile image & the patte
rn. |
69 FloatRect tileBoundaries; | 68 FloatRect tileBoundaries; |
70 AffineTransform tileImageTransform; | 69 AffineTransform tileImageTransform; |
71 if (!buildTileImageTransform(object, m_attributes, patternElement, tileBound
aries, tileImageTransform)) | 70 if (!buildTileImageTransform(object, m_attributes, patternElement, tileBound
aries, tileImageTransform)) |
72 return 0; | 71 return 0; |
73 | 72 |
74 AffineTransform absoluteTransformIgnoringRotation; | 73 AffineTransform absoluteTransformIgnoringRotation; |
75 SVGRenderingContext::calculateDeviceSpaceTransformation(object, absoluteTran
sformIgnoringRotation); | 74 SVGRenderingContext::calculateDeviceSpaceTransformation(&object, absoluteTra
nsformIgnoringRotation); |
76 | 75 |
77 // Ignore 2D rotation, as it doesn't affect the size of the tile. | 76 // Ignore 2D rotation, as it doesn't affect the size of the tile. |
78 SVGRenderingContext::clear2DRotation(absoluteTransformIgnoringRotation); | 77 SVGRenderingContext::clear2DRotation(absoluteTransformIgnoringRotation); |
79 FloatRect absoluteTileBoundaries = absoluteTransformIgnoringRotation.mapRect
(tileBoundaries); | 78 FloatRect absoluteTileBoundaries = absoluteTransformIgnoringRotation.mapRect
(tileBoundaries); |
80 | 79 |
81 // Scale the tile size to match the scale level of the patternTransform. | 80 // Scale the tile size to match the scale level of the patternTransform. |
82 absoluteTileBoundaries.scale(static_cast<float>(m_attributes.patternTransfor
m().xScale()), | 81 absoluteTileBoundaries.scale(static_cast<float>(m_attributes.patternTransfor
m().xScale()), |
83 static_cast<float>(m_attributes.patternTransform().yScale())); | 82 static_cast<float>(m_attributes.patternTransform().yScale())); |
84 | 83 |
85 // Build tile image. | 84 // Build tile image. |
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100 patternData->transform.translate(tileBoundaries.x(), tileBoundaries.y()); | 99 patternData->transform.translate(tileBoundaries.x(), tileBoundaries.y()); |
101 patternData->transform.scale(tileBoundaries.width() / tileImageSize.width(),
tileBoundaries.height() / tileImageSize.height()); | 100 patternData->transform.scale(tileBoundaries.width() / tileImageSize.width(),
tileBoundaries.height() / tileImageSize.height()); |
102 | 101 |
103 AffineTransform patternTransform = m_attributes.patternTransform(); | 102 AffineTransform patternTransform = m_attributes.patternTransform(); |
104 if (!patternTransform.isIdentity()) | 103 if (!patternTransform.isIdentity()) |
105 patternData->transform = patternTransform * patternData->transform; | 104 patternData->transform = patternTransform * patternData->transform; |
106 | 105 |
107 // Various calls above may trigger invalidations in some fringe cases (Image
Buffer allocation | 106 // Various calls above may trigger invalidations in some fringe cases (Image
Buffer allocation |
108 // failures in the SVG image cache for example). To avoid having our Pattern
Data deleted by | 107 // failures in the SVG image cache for example). To avoid having our Pattern
Data deleted by |
109 // removeAllClientsFromCache(), we only make it visible in the cache at the
very end. | 108 // removeAllClientsFromCache(), we only make it visible in the cache at the
very end. |
110 return m_patternMap.set(object, patternData.release()).storedValue->value.ge
t(); | 109 return m_patternMap.set(&object, patternData.release()).storedValue->value.g
et(); |
111 } | 110 } |
112 | 111 |
113 SVGPaintServer RenderSVGResourcePattern::preparePaintServer(RenderObject* object
) | 112 SVGPaintServer RenderSVGResourcePattern::preparePaintServer(const RenderObject&
object) |
114 { | 113 { |
115 ASSERT(object); | |
116 | |
117 clearInvalidationMask(); | 114 clearInvalidationMask(); |
118 | 115 |
119 SVGPatternElement* patternElement = toSVGPatternElement(element()); | 116 SVGPatternElement* patternElement = toSVGPatternElement(element()); |
120 if (!patternElement) | 117 if (!patternElement) |
121 return SVGPaintServer::invalid(); | 118 return SVGPaintServer::invalid(); |
122 | 119 |
123 if (m_shouldCollectPatternAttributes) { | 120 if (m_shouldCollectPatternAttributes) { |
124 patternElement->synchronizeAnimatedSVGAttribute(anyQName()); | 121 patternElement->synchronizeAnimatedSVGAttribute(anyQName()); |
125 | 122 |
126 m_attributes = PatternAttributes(); | 123 m_attributes = PatternAttributes(); |
127 patternElement->collectPatternAttributes(m_attributes); | 124 patternElement->collectPatternAttributes(m_attributes); |
128 m_shouldCollectPatternAttributes = false; | 125 m_shouldCollectPatternAttributes = false; |
129 } | 126 } |
130 | 127 |
131 // Spec: When the geometry of the applicable element has no width or height
and objectBoundingBox is specified, | 128 // Spec: When the geometry of the applicable element has no width or height
and objectBoundingBox is specified, |
132 // then the given effect (e.g. a gradient or a filter) will be ignored. | 129 // then the given effect (e.g. a gradient or a filter) will be ignored. |
133 FloatRect objectBoundingBox = object->objectBoundingBox(); | 130 FloatRect objectBoundingBox = object.objectBoundingBox(); |
134 if (m_attributes.patternUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDIN
GBOX && objectBoundingBox.isEmpty()) | 131 if (m_attributes.patternUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDIN
GBOX && objectBoundingBox.isEmpty()) |
135 return SVGPaintServer::invalid(); | 132 return SVGPaintServer::invalid(); |
136 | 133 |
137 PatternData* patternData = buildPattern(object, patternElement); | 134 PatternData* patternData = buildPattern(object, patternElement); |
138 if (!patternData) | 135 if (!patternData) |
139 return SVGPaintServer::invalid(); | 136 return SVGPaintServer::invalid(); |
140 | 137 |
141 patternData->pattern->setPatternSpaceTransform(patternData->transform); | 138 patternData->pattern->setPatternSpaceTransform(patternData->transform); |
142 | 139 |
143 return SVGPaintServer(patternData->pattern); | 140 return SVGPaintServer(patternData->pattern); |
144 } | 141 } |
145 | 142 |
146 static inline FloatRect calculatePatternBoundaries(const PatternAttributes& attr
ibutes, | 143 static inline FloatRect calculatePatternBoundaries(const PatternAttributes& attr
ibutes, |
147 const FloatRect& objectBoundi
ngBox, | 144 const FloatRect& objectBoundi
ngBox, |
148 const SVGPatternElement* patt
ernElement) | 145 const SVGPatternElement* patt
ernElement) |
149 { | 146 { |
150 ASSERT(patternElement); | 147 ASSERT(patternElement); |
151 return SVGLengthContext::resolveRectangle(patternElement, attributes.pattern
Units(), objectBoundingBox, attributes.x(), attributes.y(), attributes.width(),
attributes.height()); | 148 return SVGLengthContext::resolveRectangle(patternElement, attributes.pattern
Units(), objectBoundingBox, attributes.x(), attributes.y(), attributes.width(),
attributes.height()); |
152 } | 149 } |
153 | 150 |
154 bool RenderSVGResourcePattern::buildTileImageTransform(RenderObject* renderer, | 151 bool RenderSVGResourcePattern::buildTileImageTransform(const RenderObject& rende
rer, |
155 const PatternAttributes&
attributes, | 152 const PatternAttributes&
attributes, |
156 const SVGPatternElement*
patternElement, | 153 const SVGPatternElement*
patternElement, |
157 FloatRect& patternBoundar
ies, | 154 FloatRect& patternBoundar
ies, |
158 AffineTransform& tileImag
eTransform) const | 155 AffineTransform& tileImag
eTransform) const |
159 { | 156 { |
160 ASSERT(renderer); | |
161 ASSERT(patternElement); | 157 ASSERT(patternElement); |
162 | 158 |
163 FloatRect objectBoundingBox = renderer->objectBoundingBox(); | 159 FloatRect objectBoundingBox = renderer.objectBoundingBox(); |
164 patternBoundaries = calculatePatternBoundaries(attributes, objectBoundingBox
, patternElement); | 160 patternBoundaries = calculatePatternBoundaries(attributes, objectBoundingBox
, patternElement); |
165 if (patternBoundaries.width() <= 0 || patternBoundaries.height() <= 0) | 161 if (patternBoundaries.width() <= 0 || patternBoundaries.height() <= 0) |
166 return false; | 162 return false; |
167 | 163 |
168 AffineTransform viewBoxCTM = SVGFitToViewBox::viewBoxToViewTransform(attribu
tes.viewBox(), attributes.preserveAspectRatio(), patternBoundaries.width(), patt
ernBoundaries.height()); | 164 AffineTransform viewBoxCTM = SVGFitToViewBox::viewBoxToViewTransform(attribu
tes.viewBox(), attributes.preserveAspectRatio(), patternBoundaries.width(), patt
ernBoundaries.height()); |
169 | 165 |
170 // Apply viewBox/objectBoundingBox transformations. | 166 // Apply viewBox/objectBoundingBox transformations. |
171 if (!viewBoxCTM.isIdentity()) | 167 if (!viewBoxCTM.isIdentity()) |
172 tileImageTransform = viewBoxCTM; | 168 tileImageTransform = viewBoxCTM; |
173 else if (attributes.patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJ
ECTBOUNDINGBOX) | 169 else if (attributes.patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJ
ECTBOUNDINGBOX) |
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214 continue; | 210 continue; |
215 if (element->renderer()->needsLayout()) | 211 if (element->renderer()->needsLayout()) |
216 return nullptr; | 212 return nullptr; |
217 SVGRenderingContext::renderSubtree(tileImage->context(), element->render
er(), contentTransformation); | 213 SVGRenderingContext::renderSubtree(tileImage->context(), element->render
er(), contentTransformation); |
218 } | 214 } |
219 | 215 |
220 return tileImage.release(); | 216 return tileImage.release(); |
221 } | 217 } |
222 | 218 |
223 } | 219 } |
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