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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_NODETRACKERCALLBACK
#define OSG_NODETRACKERCALLBACK 1
#include <osg/Node>
#include <osg/NodeCallback>
#include <osg/observer_ptr>
namespace osg
{
class OSG_EXPORT NodeTrackerCallback : public NodeCallback
{
public:
typedef std::vector< observer_ptr<Node> > ObserverNodePath;
void setTrackNodePath(const osg::NodePath& nodePath)
{
_trackNodePath.clear();
_trackNodePath.reserve(nodePath.size());
std::copy(nodePath.begin(), nodePath.end(), std::back_inserter(_trackNodePath));
}
void setTrackNodePath(const ObserverNodePath& nodePath) { _trackNodePath = nodePath; }
ObserverNodePath& getTrackNodePath() { return _trackNodePath; }
void setTrackNode(osg::Node* node);
osg::Node* getTrackNode() { return _trackNodePath.empty() ? 0 : _trackNodePath.back().get(); }
const osg::Node* getTrackNode() const { return _trackNodePath.empty() ? 0 : _trackNodePath.back().get(); }
/** Implements the callback. */
virtual void operator()(Node* node, NodeVisitor* nv);
/** Update the node to track the nodepath.*/
void update(osg::Node& node);
bool validateNodePath() const;
protected:
ObserverNodePath _trackNodePath;
};
}
#endif
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