693302574d
It turned out that nv.getDatabaseRequestHandler() returned NULL; using this pointer to call one of DatabaseRequestHandler's methods is of course illegal. I patched it by adding: if (nv.getDatabaseRequestHandler())" From Robert Osfield, reordered the addition of the nv.getDatabaseRequestHandler() check to allow the default traverse() to be called when no database handling is attached to the visitor.
115 lines
3.0 KiB
C++
115 lines
3.0 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 <osg/ProxyNode>
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#include <osg/CullStack>
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#include <osg/Notify>
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using namespace osg;
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ProxyNode::ProxyNode() :
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_centerMode(USER_DEFINED_CENTER),
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_radius(-1)
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{
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}
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ProxyNode::ProxyNode(const ProxyNode& proxynode,const CopyOp& copyop):
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Group(proxynode,copyop),
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_filenameList(proxynode._filenameList),
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_centerMode(proxynode._centerMode),
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_userDefinedCenter(proxynode._userDefinedCenter),
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_radius(proxynode._radius)
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{
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}
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void ProxyNode::setDatabasePath(const std::string& path)
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{
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_databasePath = path;
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if (!_databasePath.empty())
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{
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char& lastCharacter = _databasePath[_databasePath.size()-1];
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const char unixSlash = '/';
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const char winSlash = '\\';
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if (lastCharacter==winSlash)
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{
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lastCharacter = unixSlash;
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}
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else if (lastCharacter!=unixSlash)
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{
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_databasePath += unixSlash;
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}
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}
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}
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void ProxyNode::traverse(NodeVisitor& nv)
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{
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if (nv.getDatabaseRequestHandler() && _filenameList.size()>_children.size() && nv.getVisitorType()==NodeVisitor::CULL_VISITOR)
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{
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for(unsigned int i=_children.size(); i<_filenameList.size(); ++i)
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{
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nv.getDatabaseRequestHandler()->requestNodeFile(_databasePath+_filenameList[i], this, 1.0f, nv.getFrameStamp());
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}
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}
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else
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{
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Group::traverse(nv);
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}
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}
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void ProxyNode::expandFileNameListTo(unsigned int pos)
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{
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if (pos>=_filenameList.size()) _filenameList.resize(pos+1);
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}
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bool ProxyNode::addChild( Node *child )
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{
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if (Group::addChild(child))
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{
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expandFileNameListTo(_children.size()-1);
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return true;
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}
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return false;
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}
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bool ProxyNode::addChild(Node *child, const std::string& filename)
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{
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if (Group::addChild(child))
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{
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setFileName(_children.size()-1,filename);
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return true;
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}
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return false;
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}
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bool ProxyNode::removeChildren(unsigned int pos,unsigned int numChildrenToRemove)
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{
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if (pos<_filenameList.size()) _filenameList.erase(_filenameList.begin()+pos, osg::minimum(_filenameList.begin()+(pos+numChildrenToRemove), _filenameList.end()) );
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return Group::removeChildren(pos,numChildrenToRemove);
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}
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BoundingSphere ProxyNode::computeBound() const
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{
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if (_centerMode==USER_DEFINED_CENTER && _radius>=0.0f)
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{
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return BoundingSphere(_userDefinedCenter,_radius);
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}
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else
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{
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return Group::computeBound();
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}
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}
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