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1 /* | 1 /* |
2 * Copyright (C) 2010, 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2010, 2011 Apple Inc. 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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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31 | 31 |
32 namespace WebCore { | 32 namespace WebCore { |
33 | 33 |
34 class ColumnInfo { | 34 class ColumnInfo { |
35 WTF_MAKE_NONCOPYABLE(ColumnInfo); WTF_MAKE_FAST_ALLOCATED; | 35 WTF_MAKE_NONCOPYABLE(ColumnInfo); WTF_MAKE_FAST_ALLOCATED; |
36 public: | 36 public: |
37 ColumnInfo() | 37 ColumnInfo() |
38 : m_desiredColumnWidth(0) | 38 : m_desiredColumnWidth(0) |
39 , m_desiredColumnCount(1) | 39 , m_desiredColumnCount(1) |
40 , m_progressionAxis(InlineAxis) | 40 , m_progressionAxis(InlineAxis) |
41 , m_progressionIsReversed(false) | |
42 , m_columnCount(1) | 41 , m_columnCount(1) |
43 , m_columnHeight(0) | 42 , m_columnHeight(0) |
44 , m_minimumColumnHeight(0) | 43 , m_minimumColumnHeight(0) |
45 , m_forcedBreaks(0) | 44 , m_forcedBreaks(0) |
46 , m_maximumDistanceBetweenForcedBreaks(0) | 45 , m_maximumDistanceBetweenForcedBreaks(0) |
47 , m_forcedBreakOffset(0) | 46 , m_forcedBreakOffset(0) |
48 { | 47 { |
49 } | 48 } |
50 | 49 |
51 LayoutUnit desiredColumnWidth() const { return m_desiredColumnWidth; } | 50 LayoutUnit desiredColumnWidth() const { return m_desiredColumnWidth; } |
52 void setDesiredColumnWidth(LayoutUnit width) { m_desiredColumnWidth = width;
} | 51 void setDesiredColumnWidth(LayoutUnit width) { m_desiredColumnWidth = width;
} |
53 | 52 |
54 unsigned desiredColumnCount() const { return m_desiredColumnCount; } | 53 unsigned desiredColumnCount() const { return m_desiredColumnCount; } |
55 void setDesiredColumnCount(unsigned count) { m_desiredColumnCount = count; } | 54 void setDesiredColumnCount(unsigned count) { m_desiredColumnCount = count; } |
56 | 55 |
57 enum Axis { InlineAxis, BlockAxis }; | 56 enum Axis { InlineAxis, BlockAxis }; |
58 | 57 |
59 Axis progressionAxis() const { return m_progressionAxis; } | 58 Axis progressionAxis() const { return m_progressionAxis; } |
60 void setProgressionAxis(Axis progressionAxis) { m_progressionAxis = progress
ionAxis; } | 59 void setProgressionAxis(Axis progressionAxis) { m_progressionAxis = progress
ionAxis; } |
61 | 60 |
62 bool progressionIsReversed() const { return m_progressionIsReversed; } | |
63 void setProgressionIsReversed(bool reversed) { m_progressionIsReversed = rev
ersed; } | |
64 | |
65 unsigned columnCount() const { return m_columnCount; } | 61 unsigned columnCount() const { return m_columnCount; } |
66 LayoutUnit columnHeight() const { return m_columnHeight; } | 62 LayoutUnit columnHeight() const { return m_columnHeight; } |
67 | 63 |
68 // Set our count and height. This is enough info for a RenderBlock to compu
te page rects | 64 // Set our count and height. This is enough info for a RenderBlock to compu
te page rects |
69 // dynamically. | 65 // dynamically. |
70 void setColumnCountAndHeight(int count, LayoutUnit height) | 66 void setColumnCountAndHeight(int count, LayoutUnit height) |
71 { | 67 { |
72 m_columnCount = count; | 68 m_columnCount = count; |
73 m_columnHeight = height; | 69 m_columnHeight = height; |
74 } | 70 } |
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94 return; | 90 return; |
95 m_forcedBreaks++; | 91 m_forcedBreaks++; |
96 m_maximumDistanceBetweenForcedBreaks = std::max(m_maximumDistanceBetween
ForcedBreaks, distanceFromLastBreak); | 92 m_maximumDistanceBetweenForcedBreaks = std::max(m_maximumDistanceBetween
ForcedBreaks, distanceFromLastBreak); |
97 m_forcedBreakOffset = offsetFromFirstPage; | 93 m_forcedBreakOffset = offsetFromFirstPage; |
98 } | 94 } |
99 | 95 |
100 private: | 96 private: |
101 LayoutUnit m_desiredColumnWidth; | 97 LayoutUnit m_desiredColumnWidth; |
102 unsigned m_desiredColumnCount; | 98 unsigned m_desiredColumnCount; |
103 Axis m_progressionAxis; | 99 Axis m_progressionAxis; |
104 bool m_progressionIsReversed; | |
105 | 100 |
106 unsigned m_columnCount; | 101 unsigned m_columnCount; |
107 LayoutUnit m_columnHeight; | 102 LayoutUnit m_columnHeight; |
108 LayoutUnit m_minimumColumnHeight; | 103 LayoutUnit m_minimumColumnHeight; |
109 int m_forcedBreaks; // FIXME: We will ultimately need to cache more informat
ion to balance around forced breaks properly. | 104 int m_forcedBreaks; // FIXME: We will ultimately need to cache more informat
ion to balance around forced breaks properly. |
110 LayoutUnit m_maximumDistanceBetweenForcedBreaks; | 105 LayoutUnit m_maximumDistanceBetweenForcedBreaks; |
111 LayoutUnit m_forcedBreakOffset; | 106 LayoutUnit m_forcedBreakOffset; |
112 }; | 107 }; |
113 | 108 |
114 } | 109 } |
115 | 110 |
116 #endif | 111 #endif |
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