/*

 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>

 * Copyright (C) 2009 Google, 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 RenderSVGGradientStop_h

#define RenderSVGGradientStop_h

#if ENABLE(SVG)

#include "RenderObject.h"

namespace WebCore {

class SVGGradientElement;

class SVGStopElement;

// This class exists mostly so we can hear about gradient stop style changes

class RenderSVGGradientStop : public RenderObject {

public:

    RenderSVGGradientStop(SVGStopElement*);

    virtual ~RenderSVGGradientStop();

    virtual bool isSVGGradientStop() const { return true; }

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

    virtual void layout();

    // This overrides are needed to prevent ASSERTs on <svg><stop /></svg>

    // RenderObject's default implementations ASSERT_NOT_REACHED()

    // https://bugs.webkit.org/show_bug.cgi?id=20400

    virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject*) { return IntRect(); }

    virtual FloatRect objectBoundingBox() const { return FloatRect(); }

    virtual FloatRect repaintRectInLocalCoordinates() const { return FloatRect(); }

protected:

    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);

private:

    SVGGradientElement* gradientElement() const;

};

inline const RenderSVGGradientStop* toRenderSVGGradientStop(const RenderObject* object)

{

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

    return static_cast<const RenderSVGGradientStop*>(object);

}

}

#endif // ENABLE(SVG)

#endif // RenderSVGGradientStop_h