/*

 * Copyright (C) 2009 Apple Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef RenderLineBoxList_h

#define RenderLineBoxList_h

#include "RenderBox.h"

namespace WebCore {

class RenderLineBoxList {

public:

    RenderLineBoxList()

        : m_firstLineBox(0)

        , m_lastLineBox(0)

    {

    }

#ifndef NDEBUG

    ~RenderLineBoxList();

#endif

    InlineFlowBox* firstLineBox() const { return m_firstLineBox; }

    InlineFlowBox* lastLineBox() const { return m_lastLineBox; }

    void checkConsistency() const;

    void appendLineBox(InlineFlowBox*);

    void deleteLineBoxTree(RenderArena*);

    void deleteLineBoxes(RenderArena*);

    void extractLineBox(InlineFlowBox*);

    void attachLineBox(InlineFlowBox*);

    void removeLineBox(InlineFlowBox*);

    void dirtyLineBoxes();

    void dirtyLinesFromChangedChild(RenderObject* parent, RenderObject* child);

    void paint(RenderBoxModelObject*, PaintInfo&, int x, int y) const;

    bool hitTest(RenderBoxModelObject*, const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction) const;

private:

    // For block flows, each box represents the root inline box for a line in the

    // paragraph.

    // For inline flows, each box represents a portion of that inline.

    InlineFlowBox* m_firstLineBox;

    InlineFlowBox* m_lastLineBox;

};

#ifdef NDEBUG

inline void RenderLineBoxList::checkConsistency() const

{

}

#endif

} // namespace WebCore

#endif // RenderFlow_h