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1 /* | 1 /* |
2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 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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29 #include "platform/geometry/IntRectExtent.h" | 29 #include "platform/geometry/IntRectExtent.h" |
30 #include "platform/text/TextRun.h" | 30 #include "platform/text/TextRun.h" |
31 #include "wtf/Forward.h" | 31 #include "wtf/Forward.h" |
32 #include "wtf/HashFunctions.h" | 32 #include "wtf/HashFunctions.h" |
33 #include "wtf/HashSet.h" | 33 #include "wtf/HashSet.h" |
34 #include "wtf/HashTableDeletedValueType.h" | 34 #include "wtf/HashTableDeletedValueType.h" |
35 #include "wtf/StringHasher.h" | 35 #include "wtf/StringHasher.h" |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 struct GlyphOverflow; | |
40 | |
41 struct WidthCacheEntry { | 39 struct WidthCacheEntry { |
42 WidthCacheEntry() | 40 WidthCacheEntry() |
43 { | 41 { |
44 width = std::numeric_limits<float>::quiet_NaN(); | 42 width = std::numeric_limits<float>::quiet_NaN(); |
45 } | 43 } |
46 bool isValid() const { return !std::isnan(width); } | 44 bool isValid() const { return !std::isnan(width); } |
47 float width; | 45 float width; |
48 IntRectExtent glyphBounds; | 46 IntRectExtent glyphBounds; |
49 }; | 47 }; |
50 | 48 |
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206 inline bool operator==(const WidthCache::SmallStringKey& a, const WidthCache::Sm
allStringKey& b) | 204 inline bool operator==(const WidthCache::SmallStringKey& a, const WidthCache::Sm
allStringKey& b) |
207 { | 205 { |
208 if (a.length() != b.length()) | 206 if (a.length() != b.length()) |
209 return false; | 207 return false; |
210 return WTF::equal(a.characters(), b.characters(), a.length()); | 208 return WTF::equal(a.characters(), b.characters(), a.length()); |
211 } | 209 } |
212 | 210 |
213 } // namespace blink | 211 } // namespace blink |
214 | 212 |
215 #endif // WidthCache_h | 213 #endif // WidthCache_h |
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