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1 /* | 1 /* |
2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. | 2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above | 8 * 1. Redistributions of source code must retain the above |
9 * copyright notice, this list of conditions and the following | 9 * copyright notice, this list of conditions and the following |
10 * disclaimer. | 10 * disclaimer. |
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32 | 32 |
33 #include "core/layout/api/LineLayoutBlockFlow.h" | 33 #include "core/layout/api/LineLayoutBlockFlow.h" |
34 #include "platform/LayoutUnit.h" | 34 #include "platform/LayoutUnit.h" |
35 #include "wtf/Allocator.h" | 35 #include "wtf/Allocator.h" |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 class FloatingObject; | 39 class FloatingObject; |
40 class LineLayoutRubyRun; | 40 class LineLayoutRubyRun; |
41 | 41 |
42 enum IndentTextOrNot { DoNotIndentText, IndentText }; | |
43 enum WhitespaceTreatment { ExcludeWhitespace, IncludeWhitespace }; | 42 enum WhitespaceTreatment { ExcludeWhitespace, IncludeWhitespace }; |
44 | 43 |
45 class LineWidth { | 44 class LineWidth { |
46 STACK_ALLOCATED(); | 45 STACK_ALLOCATED(); |
47 public: | 46 public: |
48 LineWidth(LineLayoutBlockFlow, bool isFirstLine, IndentTextOrNot shouldInden tText); | 47 LineWidth(LineLayoutBlockFlow, bool isFirstLine, IndentTextOrNot shouldInden tText); |
49 | 48 |
50 bool fitsOnLine() const { return currentWidth() <= (m_availableWidth + Layou tUnit::epsilon()); } | 49 bool fitsOnLine() const { return currentWidth() <= (m_availableWidth + Layou tUnit::epsilon()); } |
51 bool fitsOnLine(float extra) const { return currentWidth() + extra <= (m_ava ilableWidth + LayoutUnit::epsilon()); } | 50 bool fitsOnLine(float extra) const { return currentWidth() + extra <= (m_ava ilableWidth + LayoutUnit::epsilon()); } |
52 bool fitsOnLine(float extra, WhitespaceTreatment whitespaceTreatment) const | 51 bool fitsOnLine(float extra, WhitespaceTreatment whitespaceTreatment) const |
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67 | 66 |
68 void updateAvailableWidth(LayoutUnit minimumHeight = 0); | 67 void updateAvailableWidth(LayoutUnit minimumHeight = 0); |
69 void shrinkAvailableWidthForNewFloatIfNeeded(const FloatingObject&); | 68 void shrinkAvailableWidthForNewFloatIfNeeded(const FloatingObject&); |
70 void addUncommittedWidth(float delta) { m_uncommittedWidth += delta; } | 69 void addUncommittedWidth(float delta) { m_uncommittedWidth += delta; } |
71 void commit(); | 70 void commit(); |
72 void applyOverhang(LineLayoutRubyRun, LineLayoutItem startLayoutItem, LineLa youtItem endLayoutItem); | 71 void applyOverhang(LineLayoutRubyRun, LineLayoutItem startLayoutItem, LineLa youtItem endLayoutItem); |
73 void fitBelowFloats(bool isFirstLine = false); | 72 void fitBelowFloats(bool isFirstLine = false); |
74 void setTrailingWhitespaceWidth(float width) { m_trailingWhitespaceWidth = w idth; } | 73 void setTrailingWhitespaceWidth(float width) { m_trailingWhitespaceWidth = w idth; } |
75 void snapUncommittedWidth() { m_uncommittedWidth = LayoutUnit(m_uncommittedW idth).toFloat(); } | 74 void snapUncommittedWidth() { m_uncommittedWidth = LayoutUnit(m_uncommittedW idth).toFloat(); } |
76 | 75 |
77 bool shouldIndentText() const { return m_shouldIndentText == IndentText; } | 76 bool shouldIndentText() const { return m_shouldIndentText == IndentText; } |
Julien - ping for review
2016/01/14 16:50:34
Do we still have users of this? If so, we should p
| |
77 IndentTextOrNot indentText() const { return m_shouldIndentText ; } | |
78 | 78 |
79 private: | 79 private: |
80 void computeAvailableWidthFromLeftAndRight(); | 80 void computeAvailableWidthFromLeftAndRight(); |
81 void updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWidth, con st float& newLineLeft, const float& newLineRight); | 81 void updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWidth, con st float& newLineLeft, const float& newLineRight); |
82 void wrapNextToShapeOutside(bool isFirstLine); | 82 void wrapNextToShapeOutside(bool isFirstLine); |
83 | 83 |
84 LineLayoutBlockFlow m_block; | 84 LineLayoutBlockFlow m_block; |
85 float m_uncommittedWidth; | 85 float m_uncommittedWidth; |
86 float m_committedWidth; | 86 float m_committedWidth; |
87 float m_overhangWidth; // The amount by which |m_availableWidth| has been in flated to account for possible contraction due to ruby overhang. | 87 float m_overhangWidth; // The amount by which |m_availableWidth| has been in flated to account for possible contraction due to ruby overhang. |
88 float m_trailingWhitespaceWidth; | 88 float m_trailingWhitespaceWidth; |
89 float m_left; | 89 float m_left; |
90 float m_right; | 90 float m_right; |
91 float m_availableWidth; | 91 float m_availableWidth; |
92 bool m_isFirstLine; | 92 bool m_isFirstLine; |
93 IndentTextOrNot m_shouldIndentText; | 93 IndentTextOrNot m_shouldIndentText; |
94 }; | 94 }; |
95 | 95 |
96 } | 96 } |
97 | 97 |
98 #endif // LineWidth_h | 98 #endif // LineWidth_h |
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