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/*
* Copyright (C) Research In Motion Limited 2009-2010. 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 RenderSVGResourceMarker_h
#define RenderSVGResourceMarker_h
#if ENABLE(SVG)
#include "FloatRect.h"
#include "RenderSVGResourceContainer.h"
#include "SVGMarkerElement.h"
#include "SVGStyledElement.h"
#include <wtf/HashSet.h>
namespace WebCore {
class AffineTransform;
class RenderObject;
class RenderSVGResourceMarker : public RenderSVGResourceContainer {
public:
RenderSVGResourceMarker(SVGMarkerElement*);
virtual ~RenderSVGResourceMarker();
virtual const char* renderName() const { return "RenderSVGResourceMarker"; }
virtual void removeAllClientsFromCache(bool markForInvalidation = true);
virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true);
void draw(PaintInfo&, const AffineTransform&);
// Calculates marker boundaries, mapped to the target element's coordinate space
FloatRect markerBoundaries(const AffineTransform& markerTransformation) const;
virtual void applyViewportClip(PaintInfo&);
virtual void layout();
virtual void calcViewport();
virtual const AffineTransform& localToParentTransform() const;
AffineTransform markerTransformation(const FloatPoint& origin, float angle, float strokeWidth) const;
virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short) { return false; }
virtual FloatRect resourceBoundingBox(RenderObject*) { return FloatRect(); }
FloatPoint referencePoint() const;
float angle() const;
SVGMarkerUnitsType markerUnits() const { return toSVGMarkerElement(node())->markerUnits(); }
virtual RenderSVGResourceType resourceType() const { return s_resourceType; }
static RenderSVGResourceType s_resourceType;
private:
// Generates a transformation matrix usable to render marker content. Handles scaling the marker content
// acording to SVGs markerUnits="strokeWidth" concept, when a strokeWidth value != -1 is passed in.
AffineTransform markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth = -1) const;
AffineTransform viewportTransform() const;
mutable AffineTransform m_localToParentTransform;
FloatRect m_viewport;
};
}
#endif
#endif
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