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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 |
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40 // The first layout phase only extracts the relevant information needed in Layou
tBlockFlowLine | 40 // The first layout phase only extracts the relevant information needed in Layou
tBlockFlowLine |
41 // to create the InlineBox tree based on text chunk boundaries & BiDi informatio
n. | 41 // to create the InlineBox tree based on text chunk boundaries & BiDi informatio
n. |
42 // The second layout phase is carried out by SVGTextLayoutEngine. | 42 // The second layout phase is carried out by SVGTextLayoutEngine. |
43 | 43 |
44 class SVGTextLayoutAttributesBuilder { | 44 class SVGTextLayoutAttributesBuilder { |
45 DISALLOW_NEW(); | 45 DISALLOW_NEW(); |
46 WTF_MAKE_NONCOPYABLE(SVGTextLayoutAttributesBuilder); | 46 WTF_MAKE_NONCOPYABLE(SVGTextLayoutAttributesBuilder); |
47 public: | 47 public: |
48 SVGTextLayoutAttributesBuilder(); | 48 SVGTextLayoutAttributesBuilder(); |
49 bool buildLayoutAttributesForForSubtree(LayoutSVGText&); | 49 bool buildLayoutAttributesForForSubtree(LayoutSVGText&); |
50 void buildLayoutAttributesForText(LayoutSVGInlineText*); | |
51 | 50 |
52 void rebuildMetricsForTextLayoutObject(LayoutSVGInlineText*); | 51 void rebuildMetricsForTextLayoutObject(LayoutSVGText&, LayoutSVGInlineText&)
; |
53 | 52 |
54 // Invoked whenever the underlying DOM tree changes, so that m_textPositions
is rebuild. | 53 // Invoked whenever the underlying DOM tree changes, so that m_textPositions
is rebuild. |
55 void clearTextPositioningElements() { m_textPositions.clear(); } | 54 void clearTextPositioningElements() { m_textPositions.clear(); } |
56 unsigned numberOfTextPositioningElements() const { return m_textPositions.si
ze(); } | 55 unsigned numberOfTextPositioningElements() const { return m_textPositions.si
ze(); } |
57 | 56 |
58 struct TextPosition { | 57 struct TextPosition { |
59 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); | 58 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
60 public: | 59 public: |
61 TextPosition(SVGTextPositioningElement* newElement = nullptr, unsigned n
ewStart = 0, unsigned newLength = 0) | 60 TextPosition(SVGTextPositioningElement* newElement = nullptr, unsigned n
ewStart = 0, unsigned newLength = 0) |
62 : element(newElement) | 61 : element(newElement) |
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81 unsigned m_textLength; | 80 unsigned m_textLength; |
82 PersistentHeapVector<TextPosition> m_textPositions; | 81 PersistentHeapVector<TextPosition> m_textPositions; |
83 SVGCharacterDataMap m_characterDataMap; | 82 SVGCharacterDataMap m_characterDataMap; |
84 }; | 83 }; |
85 | 84 |
86 } // namespace blink | 85 } // namespace blink |
87 | 86 |
88 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::SVGTextLayoutAttributesBuilder
::TextPosition); | 87 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::SVGTextLayoutAttributesBuilder
::TextPosition); |
89 | 88 |
90 #endif | 89 #endif |
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