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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 #include "config.h" | 20 #include "config.h" |
21 | |
22 #include "core/rendering/svg/SVGTextMetricsBuilder.h" | 21 #include "core/rendering/svg/SVGTextMetricsBuilder.h" |
23 | 22 |
24 #include "core/rendering/svg/RenderSVGInline.h" | 23 #include "core/rendering/svg/RenderSVGInline.h" |
25 #include "core/rendering/svg/RenderSVGInlineText.h" | 24 #include "core/rendering/svg/RenderSVGInlineText.h" |
26 #include "core/rendering/svg/RenderSVGText.h" | 25 #include "core/rendering/svg/RenderSVGText.h" |
27 #include "core/rendering/svg/SVGTextMetrics.h" | 26 #include "core/rendering/svg/SVGTextMetrics.h" |
28 #include "platform/fonts/GlyphBuffer.h" | 27 #include "platform/fonts/GlyphBuffer.h" |
29 #include "platform/fonts/shaping/SimpleShaper.h" | 28 #include "platform/fonts/shaping/SimpleShaper.h" |
30 #include "platform/text/BidiCharacterRun.h" | 29 #include "platform/text/BidiCharacterRun.h" |
31 #include "platform/text/BidiResolver.h" | 30 #include "platform/text/BidiResolver.h" |
32 #include "platform/text/TextDirection.h" | 31 #include "platform/text/TextDirection.h" |
33 #include "platform/text/TextPath.h" | 32 #include "platform/text/TextPath.h" |
34 #include "platform/text/TextRun.h" | 33 #include "platform/text/TextRun.h" |
35 #include "platform/text/TextRunIterator.h" | 34 #include "platform/text/TextRunIterator.h" |
36 #include "wtf/Vector.h" | 35 #include "wtf/Vector.h" |
37 | 36 |
38 namespace blink { | 37 namespace blink { |
39 | 38 |
40 class SVGTextMetricsCalculator { | 39 class SVGTextMetricsCalculator { |
41 public: | 40 public: |
42 SVGTextMetricsCalculator(RenderSVGInlineText*); | 41 SVGTextMetricsCalculator(RenderSVGInlineText*); |
43 ~SVGTextMetricsCalculator(); | 42 ~SVGTextMetricsCalculator(); |
44 | 43 |
45 SVGTextMetrics computeMetricsForCharacter(unsigned textPosition); | 44 SVGTextMetrics computeMetricsForCharacter(unsigned textPosition); |
46 unsigned textLength() const { return static_cast<unsigned>(m_run.charactersL
ength()); } | 45 unsigned textLength() const { return m_run.charactersLength(); } |
47 | 46 |
48 bool characterStartsSurrogatePair(unsigned textPosition) const | 47 bool characterStartsSurrogatePair(unsigned textPosition) const |
49 { | 48 { |
50 return U16_IS_LEAD(m_run[textPosition]) && textPosition + 1 < textLength
() && U16_IS_TRAIL(m_run[textPosition + 1]); | 49 return U16_IS_LEAD(m_run[textPosition]) && textPosition + 1 < textLength
() && U16_IS_TRAIL(m_run[textPosition + 1]); |
51 } | 50 } |
52 bool characterIsWhiteSpace(unsigned textPosition) const | 51 bool characterIsWhiteSpace(unsigned textPosition) const |
53 { | 52 { |
54 return m_run[textPosition] == ' '; | 53 return m_run[textPosition] == ' '; |
55 } | 54 } |
56 | 55 |
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270 } | 269 } |
271 | 270 |
272 void SVGTextMetricsBuilder::buildMetricsAndLayoutAttributes(RenderSVGText* textR
oot, RenderSVGInlineText* stopAtLeaf, SVGCharacterDataMap& allCharactersMap) | 271 void SVGTextMetricsBuilder::buildMetricsAndLayoutAttributes(RenderSVGText* textR
oot, RenderSVGInlineText* stopAtLeaf, SVGCharacterDataMap& allCharactersMap) |
273 { | 272 { |
274 ASSERT(textRoot); | 273 ASSERT(textRoot); |
275 MeasureTextData data(&allCharactersMap); | 274 MeasureTextData data(&allCharactersMap); |
276 walkTree(textRoot, stopAtLeaf, &data); | 275 walkTree(textRoot, stopAtLeaf, &data); |
277 } | 276 } |
278 | 277 |
279 } | 278 } |
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