5c488d4c46
Notes from Robert Osfield, ammended the erase so that it explictly increments the iterator before the erase call. git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14277 16af8721-9629-0410-8352-f15c8da7e697
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osgUtil/StateGraph>
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#include <osg/Notify>
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using namespace osg;
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using namespace osgUtil;
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void StateGraph::reset()
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{
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_parent = NULL;
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_stateset = NULL;
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_depth = 0;
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_children.clear();
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_leaves.clear();
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}
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/** recursively clean the StateGraph of all its drawables, lights and depths.
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* Leaves children intact, and ready to be populated again.*/
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void StateGraph::clean()
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{
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// clean local drawables etc.
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_leaves.clear();
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// call clean on all children.
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for(ChildList::iterator itr=_children.begin();
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itr!=_children.end();
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++itr)
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{
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itr->second->clean();
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}
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}
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/** recursively prune the StateGraph of empty children.*/
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void StateGraph::prune()
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{
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// call prune on all children.
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ChildList::iterator citr=_children.begin();
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while(citr!=_children.end())
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{
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citr->second->prune();
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if (citr->second->empty())
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{
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ChildList::iterator ditr= citr++;
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_children.erase(ditr);
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}
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else ++citr;
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}
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}
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