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1 /* | 1 /* |
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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23 #include "core/layout/api/LineLayoutItem.h" | 23 #include "core/layout/api/LineLayoutItem.h" |
24 #include "core/style/SVGComputedStyleDefs.h" | 24 #include "core/style/SVGComputedStyleDefs.h" |
25 #include "wtf/Allocator.h" | 25 #include "wtf/Allocator.h" |
26 #include "wtf/Noncopyable.h" | 26 #include "wtf/Noncopyable.h" |
27 #include "wtf/text/Unicode.h" | 27 #include "wtf/text/Unicode.h" |
28 | 28 |
29 namespace blink { | 29 namespace blink { |
30 | 30 |
31 class Font; | 31 class Font; |
32 class ComputedStyle; | 32 class ComputedStyle; |
33 class SVGComputedStyle; | |
34 | 33 |
35 // Helper class used by SVGTextLayoutEngine to handle 'alignment-baseline' / | 34 // Helper class used by SVGTextLayoutEngine to handle 'alignment-baseline' / |
36 // 'dominant-baseline' and 'baseline-shift'. | 35 // 'dominant-baseline' and 'baseline-shift'. |
37 class SVGTextLayoutEngineBaseline { | 36 class SVGTextLayoutEngineBaseline { |
38 STACK_ALLOCATED(); | 37 STACK_ALLOCATED(); |
39 WTF_MAKE_NONCOPYABLE(SVGTextLayoutEngineBaseline); | 38 WTF_MAKE_NONCOPYABLE(SVGTextLayoutEngineBaseline); |
40 | 39 |
41 public: | 40 public: |
42 SVGTextLayoutEngineBaseline(const Font&, float effectiveZoom); | 41 SVGTextLayoutEngineBaseline(const Font&, float effectiveZoom); |
43 | 42 |
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54 // Everything we read from the m_font's font descriptor during layout is | 53 // Everything we read from the m_font's font descriptor during layout is |
55 // scaled by the effective zoom, as fonts always are in computed style. Since | 54 // scaled by the effective zoom, as fonts always are in computed style. Since |
56 // layout inside SVG takes place in unzoomed coordinates we have to compensate | 55 // layout inside SVG takes place in unzoomed coordinates we have to compensate |
57 // for zoom when reading values from the font descriptor. | 56 // for zoom when reading values from the font descriptor. |
58 float m_effectiveZoom; | 57 float m_effectiveZoom; |
59 }; | 58 }; |
60 | 59 |
61 } // namespace blink | 60 } // namespace blink |
62 | 61 |
63 #endif | 62 #endif |
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