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/*
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
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 SVGResourcesCycleSolver_h
#define SVGResourcesCycleSolver_h
#if ENABLE(SVG)
#include <wtf/HashSet.h>
namespace WebCore {
class RenderObject;
class RenderSVGResourceContainer;
class SVGResources;
class SVGResourcesCycleSolver : public Noncopyable {
public:
SVGResourcesCycleSolver(RenderObject*, SVGResources*);
~SVGResourcesCycleSolver();
void resolveCycles();
private:
bool resourceContainsCycles(RenderObject*) const;
bool chainableResourceContainsCycles(RenderSVGResourceContainer*) const;
void breakCycle(RenderSVGResourceContainer*);
RenderObject* m_renderer;
SVGResources* m_resources;
HashSet<RenderSVGResourceContainer*> m_allResources;
};
}
#endif
#endif
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