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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2010 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 |
| (...skipping 13 matching lines...) Expand all Loading... |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef VerticalPositionCache_h | 26 #ifndef VerticalPositionCache_h |
| 27 #define VerticalPositionCache_h | 27 #define VerticalPositionCache_h |
| 28 | 28 |
| 29 #include "platform/fonts/FontBaseline.h" | 29 #include "platform/fonts/FontBaseline.h" |
| 30 #include "wtf/HashMap.h" | 30 #include "wtf/HashMap.h" |
| 31 | 31 |
| 32 namespace blink { | 32 namespace blink { |
| 33 | 33 |
| 34 class RenderObject; | 34 class LayoutObject; |
| 35 | 35 |
| 36 // Values for vertical alignment. | 36 // Values for vertical alignment. |
| 37 const int PositionUndefined = 0x80000000; | 37 const int PositionUndefined = 0x80000000; |
| 38 | 38 |
| 39 class VerticalPositionCache { | 39 class VerticalPositionCache { |
| 40 WTF_MAKE_NONCOPYABLE(VerticalPositionCache); | 40 WTF_MAKE_NONCOPYABLE(VerticalPositionCache); |
| 41 public: | 41 public: |
| 42 VerticalPositionCache() | 42 VerticalPositionCache() |
| 43 { } | 43 { } |
| 44 | 44 |
| 45 int get(RenderObject* renderer, FontBaseline baselineType) const | 45 int get(LayoutObject* renderer, FontBaseline baselineType) const |
| 46 { | 46 { |
| 47 const HashMap<RenderObject*, int>& mapToCheck = baselineType == Alphabet
icBaseline ? m_alphabeticPositions : m_ideographicPositions; | 47 const HashMap<LayoutObject*, int>& mapToCheck = baselineType == Alphabet
icBaseline ? m_alphabeticPositions : m_ideographicPositions; |
| 48 const HashMap<RenderObject*, int>::const_iterator it = mapToCheck.find(r
enderer); | 48 const HashMap<LayoutObject*, int>::const_iterator it = mapToCheck.find(r
enderer); |
| 49 if (it == mapToCheck.end()) | 49 if (it == mapToCheck.end()) |
| 50 return PositionUndefined; | 50 return PositionUndefined; |
| 51 return it->value; | 51 return it->value; |
| 52 } | 52 } |
| 53 | 53 |
| 54 void set(RenderObject* renderer, FontBaseline baselineType, int position) | 54 void set(LayoutObject* renderer, FontBaseline baselineType, int position) |
| 55 { | 55 { |
| 56 if (baselineType == AlphabeticBaseline) | 56 if (baselineType == AlphabeticBaseline) |
| 57 m_alphabeticPositions.set(renderer, position); | 57 m_alphabeticPositions.set(renderer, position); |
| 58 else | 58 else |
| 59 m_ideographicPositions.set(renderer, position); | 59 m_ideographicPositions.set(renderer, position); |
| 60 } | 60 } |
| 61 | 61 |
| 62 private: | 62 private: |
| 63 HashMap<RenderObject*, int> m_alphabeticPositions; | 63 HashMap<LayoutObject*, int> m_alphabeticPositions; |
| 64 HashMap<RenderObject*, int> m_ideographicPositions; | 64 HashMap<LayoutObject*, int> m_ideographicPositions; |
| 65 }; | 65 }; |
| 66 | 66 |
| 67 } // namespace blink | 67 } // namespace blink |
| 68 | 68 |
| 69 #endif // VerticalPositionCache_h | 69 #endif // VerticalPositionCache_h |
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