1/*
2 * Copyright (C) 2002 Lars Knoll (knoll@kde.org)
3 *           (C) 2002 Dirk Mueller (mueller@kde.org)
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#ifndef AutoTableLayout_h
22#define AutoTableLayout_h
23
24#include "core/platform/LayoutUnit.h"
25#include "core/platform/Length.h"
26#include "core/rendering/TableLayout.h"
27#include "wtf/Vector.h"
28
29namespace WebCore {
30
31class RenderTable;
32class RenderTableCell;
33
34class AutoTableLayout : public TableLayout {
35public:
36    AutoTableLayout(RenderTable*);
37    ~AutoTableLayout();
38
39    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minWidth, LayoutUnit& maxWidth) OVERRIDE;
40    virtual void applyPreferredLogicalWidthQuirks(LayoutUnit& minWidth, LayoutUnit& maxWidth) const OVERRIDE;
41    virtual void layout();
42
43private:
44    void fullRecalc();
45    void recalcColumn(unsigned effCol);
46
47    int calcEffectiveLogicalWidth();
48
49    void insertSpanCell(RenderTableCell*);
50
51    struct Layout {
52        Layout()
53            : minLogicalWidth(0)
54            , maxLogicalWidth(0)
55            , effectiveMinLogicalWidth(0)
56            , effectiveMaxLogicalWidth(0)
57            , computedLogicalWidth(0)
58            , emptyCellsOnly(true)
59        {
60        }
61
62        Length logicalWidth;
63        Length effectiveLogicalWidth;
64        int minLogicalWidth;
65        int maxLogicalWidth;
66        int effectiveMinLogicalWidth;
67        int effectiveMaxLogicalWidth;
68        int computedLogicalWidth;
69        bool emptyCellsOnly;
70    };
71
72    Vector<Layout, 4> m_layoutStruct;
73    Vector<RenderTableCell*, 4> m_spanCells;
74    bool m_hasPercent : 1;
75    mutable bool m_effectiveLogicalWidthDirty : 1;
76};
77
78} // namespace WebCore
79
80#endif // AutoTableLayout_h
81