1 /*
2 * Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 * (C) 1997 Torben Weis (weis@kde.org)
4 * (C) 1998 Waldo Bastian (bastian@kde.org)
5 * (C) 1999 Lars Knoll (knoll@kde.org)
6 * (C) 1999 Antti Koivisto (koivisto@kde.org)
7 * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB. If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 */
24
25 #ifndef RenderTableSection_h
26 #define RenderTableSection_h
27
28 #include "RenderTable.h"
29 #include <wtf/Vector.h>
30
31 namespace WebCore {
32
33 class RenderTableCell;
34 class RenderTableRow;
35
36 class RenderTableSection : public RenderBox {
37 public:
38 RenderTableSection(Node*);
39 virtual ~RenderTableSection();
40
children()41 const RenderObjectChildList* children() const { return &m_children; }
children()42 RenderObjectChildList* children() { return &m_children; }
43
44 virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0);
45
46 virtual int firstLineBoxBaseline() const;
47
48 void addCell(RenderTableCell*, RenderTableRow* row);
49
50 void setCellLogicalWidths();
51 int calcRowLogicalHeight();
52 int layoutRows(int logicalHeight);
53
table()54 RenderTable* table() const { return toRenderTable(parent()); }
55
56 struct CellStruct {
57 Vector<RenderTableCell*, 1> cells;
58 bool inColSpan; // true for columns after the first in a colspan
59
CellStructCellStruct60 CellStruct():
61 inColSpan(false) {}
62
primaryCellCellStruct63 RenderTableCell* primaryCell()
64 {
65 return hasCells() ? cells[cells.size() - 1] : 0;
66 }
67
primaryCellCellStruct68 const RenderTableCell* primaryCell() const
69 {
70 return hasCells() ? cells[cells.size() - 1] : 0;
71 }
72
hasCellsCellStruct73 bool hasCells() const { return cells.size() > 0; }
74 };
75
76 typedef Vector<CellStruct> Row;
77
78 struct RowStruct {
79 Row* row;
80 RenderTableRow* rowRenderer;
81 int baseline;
82 Length logicalHeight;
83 };
84
cellAt(int row,int col)85 CellStruct& cellAt(int row, int col) { return (*m_grid[row].row)[col]; }
cellAt(int row,int col)86 const CellStruct& cellAt(int row, int col) const { return (*m_grid[row].row)[col]; }
primaryCellAt(int row,int col)87 RenderTableCell* primaryCellAt(int row, int col)
88 {
89 CellStruct& c = (*m_grid[row].row)[col];
90 return c.primaryCell();
91 }
92
93 void appendColumn(int pos);
94 void splitColumn(int pos, int first);
95
96 int calcOuterBorderBefore() const;
97 int calcOuterBorderAfter() const;
98 int calcOuterBorderStart() const;
99 int calcOuterBorderEnd() const;
100 void recalcOuterBorder();
101
outerBorderBefore()102 int outerBorderBefore() const { return m_outerBorderBefore; }
outerBorderAfter()103 int outerBorderAfter() const { return m_outerBorderAfter; }
outerBorderStart()104 int outerBorderStart() const { return m_outerBorderStart; }
outerBorderEnd()105 int outerBorderEnd() const { return m_outerBorderEnd; }
106
numRows()107 int numRows() const { return m_gridRows; }
108 int numColumns() const;
109 void recalcCells();
recalcCellsIfNeeded()110 void recalcCellsIfNeeded()
111 {
112 if (m_needsCellRecalc)
113 recalcCells();
114 }
115
needsCellRecalc()116 bool needsCellRecalc() const { return m_needsCellRecalc; }
117 void setNeedsCellRecalc();
118
getBaseline(int row)119 int getBaseline(int row) { return m_grid[row].baseline; }
120
121 private:
virtualChildren()122 virtual RenderObjectChildList* virtualChildren() { return children(); }
virtualChildren()123 virtual const RenderObjectChildList* virtualChildren() const { return children(); }
124
renderName()125 virtual const char* renderName() const { return isAnonymous() ? "RenderTableSection (anonymous)" : "RenderTableSection"; }
126
isTableSection()127 virtual bool isTableSection() const { return true; }
128
129 virtual void destroy();
130
131 virtual void layout();
132
133 virtual void removeChild(RenderObject* oldChild);
134
135 virtual void paint(PaintInfo&, int tx, int ty);
136 virtual void paintCell(RenderTableCell*, PaintInfo&, int tx, int ty);
137 virtual void paintObject(PaintInfo&, int tx, int ty);
138
139 virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
140
141 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
142
143 bool ensureRows(int);
144 void clearGrid();
145
146 RenderObjectChildList m_children;
147
148 Vector<RowStruct> m_grid;
149 Vector<int> m_rowPos;
150
151 int m_gridRows;
152
153 // the current insertion position
154 int m_cCol;
155 int m_cRow;
156
157 int m_outerBorderStart;
158 int m_outerBorderEnd;
159 int m_outerBorderBefore;
160 int m_outerBorderAfter;
161
162 bool m_needsCellRecalc;
163 bool m_hasOverflowingCell;
164
165 bool m_hasMultipleCellLevels;
166 };
167
toRenderTableSection(RenderObject * object)168 inline RenderTableSection* toRenderTableSection(RenderObject* object)
169 {
170 ASSERT(!object || object->isTableSection());
171 return static_cast<RenderTableSection*>(object);
172 }
173
toRenderTableSection(const RenderObject * object)174 inline const RenderTableSection* toRenderTableSection(const RenderObject* object)
175 {
176 ASSERT(!object || object->isTableSection());
177 return static_cast<const RenderTableSection*>(object);
178 }
179
180 // This will catch anyone doing an unnecessary cast.
181 void toRenderTableSection(const RenderTableSection*);
182
183 } // namespace WebCore
184
185 #endif // RenderTableSection_h
186