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