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27 #include "core/css/CSSImageGeneratorValue.h"
29 #include "core/css/CSSCanvasValue.h"
30 #include "core/css/CSSCrossfadeValue.h"
31 #include "core/css/CSSGradientValue.h"
32 #include "platform/graphics/Image.h"
36 CSSImageGeneratorValue::CSSImageGeneratorValue(ClassType classType)
41 CSSImageGeneratorValue::~CSSImageGeneratorValue()
45 void CSSImageGeneratorValue::addClient(RenderObject* renderer, const IntSize& size)
53 RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
54 if (it == m_clients.end())
55 m_clients.add(renderer, SizeAndCount(size, 1));
57 SizeAndCount& sizeCount = it->value;
62 void CSSImageGeneratorValue::removeClient(RenderObject* renderer)
65 RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
66 ASSERT_WITH_SECURITY_IMPLICATION(it != m_clients.end());
68 IntSize removedImageSize;
69 SizeAndCount& sizeCount = it->value;
70 IntSize size = sizeCount.size;
71 if (!size.isEmpty()) {
73 if (!m_sizes.contains(size))
74 m_images.remove(size);
77 if (!--sizeCount.count)
78 m_clients.remove(renderer);
83 Image* CSSImageGeneratorValue::getImage(RenderObject* renderer, const IntSize& size)
85 RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
86 if (it != m_clients.end()) {
87 SizeAndCount& sizeCount = it->value;
88 IntSize oldSize = sizeCount.size;
89 if (oldSize != size) {
90 RefPtr<CSSImageGeneratorValue> protect(this);
91 removeClient(renderer);
92 addClient(renderer, size);
96 // Don't generate an image for empty sizes.
100 // Look up the image in our cache.
101 return m_images.get(size);
104 void CSSImageGeneratorValue::putImage(const IntSize& size, PassRefPtr<Image> image)
106 m_images.add(size, image);
109 PassRefPtr<Image> CSSImageGeneratorValue::image(RenderObject* renderer, const IntSize& size)
111 switch (classType()) {
113 return toCSSCanvasValue(this)->image(renderer, size);
115 return toCSSCrossfadeValue(this)->image(renderer, size);
116 case LinearGradientClass:
117 return toCSSLinearGradientValue(this)->image(renderer, size);
118 case RadialGradientClass:
119 return toCSSRadialGradientValue(this)->image(renderer, size);
121 ASSERT_NOT_REACHED();
126 bool CSSImageGeneratorValue::isFixedSize() const
128 switch (classType()) {
130 return toCSSCanvasValue(this)->isFixedSize();
132 return toCSSCrossfadeValue(this)->isFixedSize();
133 case LinearGradientClass:
134 return toCSSLinearGradientValue(this)->isFixedSize();
135 case RadialGradientClass:
136 return toCSSRadialGradientValue(this)->isFixedSize();
138 ASSERT_NOT_REACHED();
143 IntSize CSSImageGeneratorValue::fixedSize(const RenderObject* renderer)
145 switch (classType()) {
147 return toCSSCanvasValue(this)->fixedSize(renderer);
149 return toCSSCrossfadeValue(this)->fixedSize(renderer);
150 case LinearGradientClass:
151 return toCSSLinearGradientValue(this)->fixedSize(renderer);
152 case RadialGradientClass:
153 return toCSSRadialGradientValue(this)->fixedSize(renderer);
155 ASSERT_NOT_REACHED();
160 bool CSSImageGeneratorValue::isPending() const
162 switch (classType()) {
164 return toCSSCrossfadeValue(this)->isPending();
166 return toCSSCanvasValue(this)->isPending();
167 case LinearGradientClass:
168 return toCSSLinearGradientValue(this)->isPending();
169 case RadialGradientClass:
170 return toCSSRadialGradientValue(this)->isPending();
172 ASSERT_NOT_REACHED();
177 bool CSSImageGeneratorValue::knownToBeOpaque(const RenderObject* renderer) const
179 switch (classType()) {
181 return toCSSCrossfadeValue(this)->knownToBeOpaque(renderer);
184 case LinearGradientClass:
185 return toCSSLinearGradientValue(this)->knownToBeOpaque(renderer);
186 case RadialGradientClass:
187 return toCSSRadialGradientValue(this)->knownToBeOpaque(renderer);
189 ASSERT_NOT_REACHED();
194 void CSSImageGeneratorValue::loadSubimages(ResourceFetcher* fetcher)
196 switch (classType()) {
198 toCSSCrossfadeValue(this)->loadSubimages(fetcher);
201 toCSSCanvasValue(this)->loadSubimages(fetcher);
203 case LinearGradientClass:
204 toCSSLinearGradientValue(this)->loadSubimages(fetcher);
206 case RadialGradientClass:
207 toCSSRadialGradientValue(this)->loadSubimages(fetcher);
210 ASSERT_NOT_REACHED();
214 } // namespace WebCore