Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(3)

Side by Side Diff: Source/core/rendering/RenderMultiColumnFlowThread.h

Issue 295373006: [New Multicolumn] Support for paged overflow. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
1 /* 1 /*
2 * Copyright (C) 2012 Apple Inc. All rights reserved. 2 * Copyright (C) 2012 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
(...skipping 93 matching lines...) Expand 10 before | Expand all | Expand 10 after
104 void populate(); 104 void populate();
105 105
106 // Empty the flow thread by moving everything to the parent. Remove all mult icol specific 106 // Empty the flow thread by moving everything to the parent. Remove all mult icol specific
107 // renderers. Then destroy the flow thread. Called when a multicol container becomes a regular 107 // renderers. Then destroy the flow thread. Called when a multicol container becomes a regular
108 // block. 108 // block.
109 void evacuateAndDestroy(); 109 void evacuateAndDestroy();
110 110
111 unsigned columnCount() const { return m_columnCount; } 111 unsigned columnCount() const { return m_columnCount; }
112 LayoutUnit columnHeightAvailable() const { return m_columnHeightAvailable; } 112 LayoutUnit columnHeightAvailable() const { return m_columnHeightAvailable; }
113 void setColumnHeightAvailable(LayoutUnit available) { m_columnHeightAvailabl e = available; } 113 void setColumnHeightAvailable(LayoutUnit available) { m_columnHeightAvailabl e = available; }
114 bool requiresBalancing() const { return !columnHeightAvailable() || multiCol umnBlockFlow()->style()->columnFill() == ColumnFillBalance; } 114 virtual bool heightIsAuto() const { return !columnHeightAvailable() || multi ColumnBlockFlow()->style()->columnFill() == ColumnFillBalance; }
115 bool progressionIsInline() const { return m_progressionIsInline; }
115 116
116 virtual LayoutSize columnOffset(const LayoutPoint&) const OVERRIDE FINAL; 117 virtual LayoutSize columnOffset(const LayoutPoint&) const OVERRIDE FINAL;
117 118
118 // Do we need to set a new width and lay out? 119 // Do we need to set a new width and lay out?
119 bool needsNewWidth() const; 120 virtual bool needsNewWidth() const;
120 121
121 void layoutColumns(bool relayoutChildren, SubtreeLayoutScope&); 122 void layoutColumns(bool relayoutChildren, SubtreeLayoutScope&);
122 123
123 bool recalculateColumnHeights(); 124 bool recalculateColumnHeights();
124 125
126 protected:
127 RenderMultiColumnFlowThread();
128 void setProgressionIsInline(bool isInline) { m_progressionIsInline = isInlin e; }
129
130 virtual void layout() OVERRIDE;
131
125 private: 132 private:
126 RenderMultiColumnFlowThread();
127
128 void calculateColumnCountAndWidth(LayoutUnit& width, unsigned& count) const; 133 void calculateColumnCountAndWidth(LayoutUnit& width, unsigned& count) const;
129 134
130 virtual const char* renderName() const OVERRIDE; 135 virtual const char* renderName() const OVERRIDE;
131 virtual void addRegionToThread(RenderRegion*) OVERRIDE; 136 virtual void addRegionToThread(RenderRegion*) OVERRIDE;
132 virtual void willBeRemovedFromTree() OVERRIDE; 137 virtual void willBeRemovedFromTree() OVERRIDE;
133 virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logic alTop, LogicalExtentComputedValues&) const OVERRIDE; 138 virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logic alTop, LogicalExtentComputedValues&) const OVERRIDE;
134 virtual void updateLogicalWidth() OVERRIDE FINAL; 139 virtual void updateLogicalWidth() OVERRIDE FINAL;
135 virtual void layout() OVERRIDE FINAL;
136 virtual void setPageBreak(LayoutUnit offset, LayoutUnit spaceShortage) OVERR IDE; 140 virtual void setPageBreak(LayoutUnit offset, LayoutUnit spaceShortage) OVERR IDE;
137 virtual void updateMinimumPageHeight(LayoutUnit offset, LayoutUnit minHeight ) OVERRIDE; 141 virtual void updateMinimumPageHeight(LayoutUnit offset, LayoutUnit minHeight ) OVERRIDE;
138 virtual RenderRegion* regionAtBlockOffset(LayoutUnit) const OVERRIDE; 142 virtual RenderRegion* regionAtBlockOffset(LayoutUnit) const OVERRIDE;
139 virtual bool addForcedRegionBreak(LayoutUnit, RenderObject* breakChild, bool isBefore, LayoutUnit* offsetBreakAdjustment = 0) OVERRIDE; 143 virtual bool addForcedRegionBreak(LayoutUnit, RenderObject* breakChild, bool isBefore, LayoutUnit* offsetBreakAdjustment = 0) OVERRIDE;
140 virtual bool isPageLogicalHeightKnown() const OVERRIDE; 144 virtual bool isPageLogicalHeightKnown() const OVERRIDE;
141 145
142 unsigned m_columnCount; // The used value of column-count 146 unsigned m_columnCount; // The used value of column-count
143 LayoutUnit m_columnHeightAvailable; // Total height available to columns, or 0 if auto. 147 LayoutUnit m_columnHeightAvailable; // Total height available to columns, or 0 if auto.
144 bool m_inBalancingPass; // Set when relayouting for column balancing. 148 bool m_inBalancingPass; // Set when relayouting for column balancing.
145 bool m_needsColumnHeightsRecalculation; // Set when we need to recalculate t he column set heights after layout. 149 bool m_needsColumnHeightsRecalculation; // Set when we need to recalculate t he column set heights after layout.
150 bool m_progressionIsInline; // Always true for regular multicol. False for p aged-y overflow.
146 }; 151 };
147 152
148 } // namespace WebCore 153 } // namespace WebCore
149 154
150 #endif // RenderMultiColumnFlowThread_h 155 #endif // RenderMultiColumnFlowThread_h
151 156
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698