/*

 * This file is part of the DOM implementation for KDE.

 *

 * Copyright (C) 1997 Martin Jones (mjones@kde.org)

 *           (C) 1997 Torben Weis (weis@kde.org)

 *           (C) 1998 Waldo Bastian (bastian@kde.org)

 *           (C) 1999 Lars Knoll (knoll@kde.org)

 *           (C) 1999 Antti Koivisto (koivisto@kde.org)

 * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#ifndef RenderTableSection_h

#define RenderTableSection_h

#include "RenderTable.h"

#include <wtf/Vector.h>

namespace WebCore {

class RenderTableCell;

class RenderTableSection : public RenderContainer {

public:

    RenderTableSection(Node*);

    ~RenderTableSection();

    virtual const char* renderName() const { return "RenderTableSection"; }

    virtual bool isTableSection() const { return true; }

    virtual void destroy();

    virtual void setStyle(RenderStyle*);

    virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0);

    virtual short lineHeight(bool firstLine, bool isRootLineBox = false) const { return 0; }

    virtual void position(InlineBox*) { }

    void addCell(RenderTableCell*, RenderObject* row);

    void setCellWidths();

    void calcRowHeight();

    int layoutRows(int height);

    RenderTable* table() const { return static_cast<RenderTable*>(parent()); }

    struct CellStruct {

        RenderTableCell* cell;

        bool inColSpan; // true for columns after the first in a colspan

    };

    typedef Vector<CellStruct> Row;

    struct RowStruct {

        Row* row;

        RenderObject* rowRenderer;

        int baseline;

        Length height;

    };

    CellStruct& cellAt(int row,  int col) { return (*m_grid[row].row)[col]; }

    const CellStruct& cellAt(int row, int col) const { return (*m_grid[row].row)[col]; }

    void appendColumn(int pos);

    void splitColumn(int pos, int newSize);

    virtual int overflowWidth(bool includeInterior = true) const { return (!includeInterior && hasOverflowClip()) ? m_width : m_overflowWidth; }

    virtual int overflowLeft(bool includeInterior = true) const { return (!includeInterior && hasOverflowClip()) ? 0 : m_overflowLeft; }

    virtual int overflowHeight(bool includeInterior = true) const { return (!includeInterior && hasOverflowClip()) ? m_height : m_overflowHeight; }

    virtual int overflowTop(bool includeInterior = true) const { return (!includeInterior && hasOverflowClip()) ? 0 : m_overflowTop; }

    virtual int lowestPosition(bool includeOverflowInterior, bool includeSelf) const;

    virtual int rightmostPosition(bool includeOverflowInterior, bool includeSelf) const;

    virtual int leftmostPosition(bool includeOverflowInterior, bool includeSelf) const;

    int calcOuterBorderTop() const;

    int calcOuterBorderBottom() const;

    int calcOuterBorderLeft(bool rtl) const;

    int calcOuterBorderRight(bool rtl) const;

    void recalcOuterBorder();

    int outerBorderTop() const { return m_outerBorderTop; }

    int outerBorderBottom() const { return m_outerBorderBottom; }

    int outerBorderLeft() const { return m_outerBorderLeft; }

    int outerBorderRight() const { return m_outerBorderRight; }

    virtual void paint(PaintInfo&, int tx, int ty);

    virtual void imageChanged(CachedImage*);

    int numRows() const { return m_gridRows; }

    int numColumns() const;

    void recalcCells();

    void recalcCellsIfNeeded()

    {

        if (m_needsCellRecalc)

            recalcCells();

    }

    bool needsCellRecalc() const { return m_needsCellRecalc; }

    void setNeedsCellRecalc()

    {

        m_needsCellRecalc = true;

        table()->setNeedsSectionRecalc();

    }

    int getBaseline(int row) { return m_grid[row].baseline; }

    virtual RenderObject* removeChildNode(RenderObject*, bool fullRemove = true);

    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);

#ifndef NDEBUG

    virtual void dump(TextStream*, DeprecatedString ind = "") const;

#endif

protected:

    bool ensureRows(int);

    void clearGrid();

    Vector<RowStruct> m_grid;

    int m_gridRows;

    Vector<int> m_rowPos;

    // the current insertion position

    int m_cCol;

    int m_cRow;

    bool m_needsCellRecalc;

    int m_outerBorderLeft;

    int m_outerBorderRight;

    int m_outerBorderTop;

    int m_outerBorderBottom;

    int m_overflowLeft;

    int m_overflowWidth;

    int m_overflowTop;

    int m_overflowHeight;

    bool m_hasOverflowingCell;

};

} // namespace WebCore

#endif // RenderTableSection_h