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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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61 PassRefPtr<Image> image(LayoutObject*, const IntSize&); | 61 PassRefPtr<Image> image(LayoutObject*, const IntSize&); |
62 | 62 |
63 bool isFixedSize() const; | 63 bool isFixedSize() const; |
64 IntSize fixedSize(const LayoutObject*); | 64 IntSize fixedSize(const LayoutObject*); |
65 | 65 |
66 bool isPending() const; | 66 bool isPending() const; |
67 bool knownToBeOpaque(const LayoutObject*) const; | 67 bool knownToBeOpaque(const LayoutObject*) const; |
68 | 68 |
69 void loadSubimages(Document*); | 69 void loadSubimages(Document*); |
70 | 70 |
71 DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValue::traceAfterDispatch(visitor)
; } | |
72 | |
73 protected: | 71 protected: |
74 explicit CSSImageGeneratorValue(ClassType); | 72 explicit CSSImageGeneratorValue(ClassType); |
75 | 73 |
76 Image* getImage(LayoutObject*, const IntSize&); | 74 Image* getImage(LayoutObject*, const IntSize&); |
77 void putImage(const IntSize&, PassRefPtr<Image>); | 75 void putImage(const IntSize&, PassRefPtr<Image>); |
78 const LayoutObjectSizeCountMap& clients() const { return m_clients; } | 76 const LayoutObjectSizeCountMap& clients() const { return m_clients; } |
79 | 77 |
80 HashCountedSet<IntSize> m_sizes; // A count of how many times a given image
size is in use. | 78 HashCountedSet<IntSize> m_sizes; // A count of how many times a given image
size is in use. |
81 LayoutObjectSizeCountMap m_clients; // A map from LayoutObjects (with entry
count) to image sizes. | 79 LayoutObjectSizeCountMap m_clients; // A map from LayoutObjects (with entry
count) to image sizes. |
82 HashMap<IntSize, RefPtr<Image>> m_images; // A cache of Image objects by ima
ge size. | 80 HashMap<IntSize, RefPtr<Image>> m_images; // A cache of Image objects by ima
ge size. |
83 | |
84 #if ENABLE(OILPAN) | |
85 // FIXME: Oilpan: when/if we can make the layoutObject point directly to the
CSSImageGenerator value using | |
86 // a member we don't need to have this hack where we keep a persistent to th
e instance as long as | |
87 // there are clients in the LayoutObjectSizeCountMap. | |
88 SelfKeepAlive<CSSImageGeneratorValue> m_keepAlive; | |
89 #endif | |
90 }; | 81 }; |
91 | 82 |
92 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageGeneratorValue, isImageGeneratorValue()); | 83 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageGeneratorValue, isImageGeneratorValue()); |
93 | 84 |
94 } // namespace blink | 85 } // namespace blink |
95 | 86 |
96 #endif // CSSImageGeneratorValue_h | 87 #endif // CSSImageGeneratorValue_h |
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