OLD | NEW |
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 |
(...skipping 24 matching lines...) Expand all Loading... |
35 | 35 |
36 // SVGTextLayoutAttributesBuilder performs the first layout phase for SVG text. | 36 // SVGTextLayoutAttributesBuilder performs the first layout phase for SVG text. |
37 // | 37 // |
38 // It extracts the x/y/dx/dy/rotate values from the SVGTextPositioningElements i
n the DOM. | 38 // It extracts the x/y/dx/dy/rotate values from the SVGTextPositioningElements i
n the DOM. |
39 // These values are propagated to the corresponding LayoutSVGInlineText layoutOb
jects. | 39 // These values are propagated to the corresponding LayoutSVGInlineText layoutOb
jects. |
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_ALLOCATION(); | 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*); | 50 void buildLayoutAttributesForText(LayoutSVGInlineText*); |
51 | 51 |
52 void rebuildMetricsForTextLayoutObject(LayoutSVGInlineText*); | 52 void rebuildMetricsForTextLayoutObject(LayoutSVGInlineText*); |
53 | 53 |
54 // Invoked whenever the underlying DOM tree changes, so that m_textPositions
is rebuild. | 54 // Invoked whenever the underlying DOM tree changes, so that m_textPositions
is rebuild. |
55 void clearTextPositioningElements() { m_textPositions.clear(); } | 55 void clearTextPositioningElements() { m_textPositions.clear(); } |
56 unsigned numberOfTextPositioningElements() const { return m_textPositions.si
ze(); } | 56 unsigned numberOfTextPositioningElements() const { return m_textPositions.si
ze(); } |
57 | 57 |
58 struct TextPosition { | 58 struct TextPosition { |
59 ALLOW_ONLY_INLINE_ALLOCATION(); | 59 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
60 public: | 60 public: |
61 TextPosition(SVGTextPositioningElement* newElement = nullptr, unsigned n
ewStart = 0, unsigned newLength = 0) | 61 TextPosition(SVGTextPositioningElement* newElement = nullptr, unsigned n
ewStart = 0, unsigned newLength = 0) |
62 : element(newElement) | 62 : element(newElement) |
63 , start(newStart) | 63 , start(newStart) |
64 , length(newLength) | 64 , length(newLength) |
65 { | 65 { |
66 } | 66 } |
67 | 67 |
68 DECLARE_TRACE(); | 68 DECLARE_TRACE(); |
69 | 69 |
(...skipping 11 matching lines...) Expand all Loading... |
81 unsigned m_textLength; | 81 unsigned m_textLength; |
82 WillBePersistentHeapVector<TextPosition> m_textPositions; | 82 WillBePersistentHeapVector<TextPosition> m_textPositions; |
83 SVGCharacterDataMap m_characterDataMap; | 83 SVGCharacterDataMap m_characterDataMap; |
84 }; | 84 }; |
85 | 85 |
86 } // namespace blink | 86 } // namespace blink |
87 | 87 |
88 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::SVGTextLayoutAttributesBuilder
::TextPosition); | 88 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::SVGTextLayoutAttributesBuilder
::TextPosition); |
89 | 89 |
90 #endif | 90 #endif |
OLD | NEW |