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1 /* | 1 /* |
2 * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2010-2012. 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 |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 * Library General Public License for more details. | 12 * Library General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU Library General Public License | 14 * You should have received a copy of the GNU Library General Public License |
15 * along with this library; see the file COPYING.LIB. If not, write to | 15 * along with this library; see the file COPYING.LIB. If not, write to |
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 * Boston, MA 02110-1301, USA. | 17 * Boston, MA 02110-1301, USA. |
18 */ | 18 */ |
19 | 19 |
20 #ifndef SVGTextMetricsBuilder_h | 20 #ifndef SVGTextMetricsBuilder_h |
21 #define SVGTextMetricsBuilder_h | 21 #define SVGTextMetricsBuilder_h |
22 | 22 |
23 #include "core/rendering/svg/SVGTextLayoutAttributes.h" | 23 #include "core/rendering/svg/SVGTextLayoutAttributes.h" |
24 #include "core/rendering/svg/SVGTextMetrics.h" | |
25 #include "platform/fonts/WidthIterator.h" | |
26 #include "platform/text/TextRun.h" | |
27 #include "wtf/Vector.h" | |
28 | 24 |
29 namespace WebCore { | 25 namespace WebCore { |
30 | 26 |
31 class RenderObject; | 27 class RenderObject; |
32 class RenderSVGInlineText; | 28 class RenderSVGInlineText; |
33 class RenderSVGText; | 29 class RenderSVGText; |
34 struct MeasureTextData; | 30 struct MeasureTextData; |
35 | 31 |
36 class SVGTextMetricsBuilder { | 32 class SVGTextMetricsBuilder { |
37 WTF_MAKE_NONCOPYABLE(SVGTextMetricsBuilder); | 33 WTF_MAKE_NONCOPYABLE(SVGTextMetricsBuilder); |
38 public: | 34 public: |
39 SVGTextMetricsBuilder(); | 35 SVGTextMetricsBuilder() { } |
| 36 |
40 void measureTextRenderer(RenderSVGInlineText*); | 37 void measureTextRenderer(RenderSVGInlineText*); |
41 void buildMetricsAndLayoutAttributes(RenderSVGText*, RenderSVGInlineText* st
opAtLeaf, SVGCharacterDataMap& allCharactersMap); | 38 void buildMetricsAndLayoutAttributes(RenderSVGText*, RenderSVGInlineText* st
opAtLeaf, SVGCharacterDataMap& allCharactersMap); |
42 | 39 |
43 private: | 40 private: |
44 SVGTextMetrics computeMetricsForCurrentCharacter(unsigned textPosition); | |
45 SVGTextMetrics computeMetricsForCurrentCharacterSimple(unsigned textPosition
); | |
46 SVGTextMetrics computeMetricsForCurrentCharacterComplex(unsigned textPositio
n); | |
47 bool currentCharacterStartsSurrogatePair(unsigned textPosition) const; | |
48 | |
49 void initializeMeasurementWithTextRenderer(RenderSVGInlineText*); | |
50 void walkTree(RenderObject*, RenderSVGInlineText* stopAtLeaf, MeasureTextDat
a*); | 41 void walkTree(RenderObject*, RenderSVGInlineText* stopAtLeaf, MeasureTextDat
a*); |
51 void measureTextRenderer(RenderSVGInlineText*, MeasureTextData*, bool proces
sRenderer); | 42 void measureTextRenderer(RenderSVGInlineText*, MeasureTextData*, bool proces
sRenderer); |
52 | |
53 RenderSVGInlineText* m_text; | |
54 TextRun m_run; | |
55 bool m_isComplexText; | |
56 float m_totalWidth; | |
57 | |
58 // Simple text only. | |
59 OwnPtr<WidthIterator> m_simpleWidthIterator; | |
60 }; | 43 }; |
61 | 44 |
62 } // namespace WebCore | 45 } // namespace WebCore |
63 | 46 |
64 #endif | 47 #endif |
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