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/*
* Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) Research In Motion Limited 2010. 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
* 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 RenderSVGResourceGradient_h
#define RenderSVGResourceGradient_h
#if ENABLE(SVG)
#include "AffineTransform.h"
#include "FloatRect.h"
#include "Gradient.h"
#include "ImageBuffer.h"
#include "RenderSVGResourceContainer.h"
#include "SVGGradientElement.h"
#include <wtf/HashMap.h>
namespace WebCore {
struct GradientData {
RefPtr<Gradient> gradient;
AffineTransform userspaceTransform;
};
class GraphicsContext;
class RenderSVGResourceGradient : public RenderSVGResourceContainer {
public:
RenderSVGResourceGradient(SVGGradientElement*);
virtual ~RenderSVGResourceGradient();
virtual void removeAllClientsFromCache(bool markForInvalidation = true);
virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true);
virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode);
virtual void postApplyResource(RenderObject*, GraphicsContext*&, unsigned short resourceMode, const Path*);
virtual FloatRect resourceBoundingBox(RenderObject*) { return FloatRect(); }
protected:
void addStops(GradientData*, const Vector<Gradient::ColorStop>&) const;
virtual bool boundingBoxMode() const = 0;
virtual void calculateGradientTransform(AffineTransform&) = 0;
virtual void collectGradientAttributes(SVGGradientElement*) = 0;
virtual void buildGradient(GradientData*, SVGGradientElement*) const = 0;
private:
bool m_shouldCollectGradientAttributes : 1;
HashMap<RenderObject*, GradientData*> m_gradient;
#if USE(CG)
GraphicsContext* m_savedContext;
OwnPtr<ImageBuffer> m_imageBuffer;
#endif
};
}
#endif
#endif
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