rendersvgviewportcontainer.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <[e-mail]>
                  2004, 2005, 2007 Rob Buis <[e-mail]>

    This file is part of the KDE project

    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 RenderSVGViewportContainer_h
#define RenderSVGViewportContainer_h

#if ENABLE(SVG)

#include "RenderSVGContainer.h"

namespace WebCore {

class RenderSVGViewportContainer : public RenderSVGContainer {
public:
    RenderSVGViewportContainer(SVGStyledElement*);
    ~RenderSVGViewportContainer();

    virtual bool isSVGContainer() const { return true; }
    virtual const char* renderName() const { return "RenderSVGViewportContainer"; }

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

    virtual TransformationMatrix absoluteTransform() const;
    virtual TransformationMatrix viewportTransform() const;

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

    FloatRect viewport() const;

private:
    void calcViewport(); 

    virtual void applyContentTransforms(PaintInfo&);
    virtual void applyAdditionalTransforms(PaintInfo&);
    
    FloatRect m_viewport;
};
  
} // namespace WebCore

#endif // ENABLE(SVG)
#endif // RenderSVGViewportContainer_h

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