/*

    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>

                  2004, 2005, 2007 Rob Buis <buis@kde.org>

    Copyright (C) 2009 Google, Inc.  All rights reserved.

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

    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

    aint 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 RenderSVGRoot_h

#define RenderSVGRoot_h

#if ENABLE(SVG)

#include "RenderBox.h"

#include "FloatRect.h"

#include "SVGRenderSupport.h"

namespace WebCore {

class SVGStyledElement;

class AffineTransform;

class RenderSVGRoot : public RenderBox {

public:

    RenderSVGRoot(SVGStyledElement*);

    const RenderObjectChildList* children() const { return &m_children; }

    RenderObjectChildList* children() { return &m_children; }

    bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }

private:

    virtual RenderObjectChildList* virtualChildren() { return children(); }

    virtual const RenderObjectChildList* virtualChildren() const { return children(); }

    virtual bool isSVGRoot() const { return true; }

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

    virtual int lineHeight(bool b, bool isRootLineBox = false) const;

    virtual int baselinePosition(bool b, bool isRootLineBox = false) const;

    virtual void calcPrefWidths();

    virtual int calcReplacedWidth(bool includeMaxWidth = true) const;

    virtual int calcReplacedHeight() const;

    virtual void layout();

    virtual void paint(PaintInfo&, int parentX, int parentY);

    virtual void destroy();

    virtual const AffineTransform& localToParentTransform() const;

    bool fillContains(const FloatPoint&) const;

    bool strokeContains(const FloatPoint&) const;

    virtual FloatRect objectBoundingBox() const;

    virtual FloatRect strokeBoundingBox() const;

    virtual FloatRect repaintRectInLocalCoordinates() const;

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

    virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);

    virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed);

    virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&) const;

    void calcViewport();

    bool selfWillPaint() const;

    IntSize parentOriginToBorderBox() const;

    IntSize borderOriginToContentBox() const;

    AffineTransform localToRepaintContainerTransform(const IntPoint& parentOriginInContainer) const;

    AffineTransform localToBorderBoxTransform() const;

    RenderObjectChildList m_children;

    FloatSize m_viewportSize;

    mutable AffineTransform m_localToParentTransform;

    bool m_isLayoutSizeChanged : 1;

};

inline RenderSVGRoot* toRenderSVGRoot(RenderObject* object)

{ 

    ASSERT(!object || object->isSVGRoot());

    return static_cast<RenderSVGRoot*>(object);

}

inline const RenderSVGRoot* toRenderSVGRoot(const RenderObject* object)

{ 

    ASSERT(!object || object->isSVGRoot());

    return static_cast<const RenderSVGRoot*>(object);

}

// This will catch anyone doing an unnecessary cast.

void toRenderSVGRoot(const RenderSVGRoot*);

} // namespace WebCore

#endif // ENABLE(SVG)

#endif // RenderSVGRoot_h