2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #ifndef SVGResourcesCycleSolver_h
21 #define SVGResourcesCycleSolver_h
23 #include "wtf/HashSet.h"
24 #include "wtf/Noncopyable.h"
29 class RenderSVGResourceContainer;
32 class SVGResourcesCycleSolver {
33 WTF_MAKE_NONCOPYABLE(SVGResourcesCycleSolver);
35 SVGResourcesCycleSolver(RenderObject*, SVGResources*);
36 ~SVGResourcesCycleSolver();
40 typedef HashSet<RenderSVGResourceContainer*> ResourceSet;
43 bool resourceContainsCycles(RenderSVGResourceContainer*);
44 void breakCycle(RenderSVGResourceContainer*);
46 RenderObject* m_renderer;
47 SVGResources* m_resources;
49 ResourceSet m_activeResources;
50 ResourceSet m_dagCache;