/* | |
* 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 RenderSVGResource_h | |
#define RenderSVGResource_h | |
#if ENABLE(SVG) | |
#include "FloatRect.h" | |
#include "RenderSVGHiddenContainer.h" | |
namespace WebCore { | |
enum RenderSVGResourceType { | |
MaskerResourceType, | |
ClipperResourceType | |
}; | |
class RenderSVGResource : public RenderSVGHiddenContainer { | |
public: | |
RenderSVGResource(SVGStyledElement* node) : RenderSVGHiddenContainer(node) { } | |
template<class Renderer> | |
Renderer* cast() | |
{ | |
if (Renderer::s_resourceType == resourceType()) | |
return static_cast<Renderer*>(this); | |
return 0; | |
} | |
virtual RenderSVGResource* toRenderSVGResource() { return this; } | |
virtual bool isSVGResource() const { return true; } | |
virtual bool drawsContents() { return false; } | |
virtual void invalidateClients() = 0; | |
virtual void invalidateClient(RenderObject*) = 0; | |
virtual bool applyResource(RenderObject*, GraphicsContext*) = 0; | |
virtual FloatRect resourceBoundingBox(const FloatRect&) const = 0; | |
virtual RenderSVGResourceType resourceType() const = 0; | |
}; | |
template<typename Renderer> | |
Renderer* getRenderSVGResourceById(Document* document, const AtomicString& id) | |
{ | |
if (id.isEmpty()) | |
return 0; | |
Element* element = document->getElementById(id); | |
if (!element || !element->isSVGElement()) | |
return 0; | |
RenderObject* renderer = element->renderer(); | |
if (!renderer) | |
return 0; | |
RenderSVGResource* renderResource = renderer->toRenderSVGResource(); | |
if (!renderResource) | |
return 0; | |
return renderResource->cast<Renderer>(); | |
} | |
} | |
#endif | |
#endif |