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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_STATEATTRIBUTECALLBACK
#define OSG_STATEATTRIBUTECALLBACK 1
#include <osg/Export>
#include <osg/Object>
namespace osg {
class StateAttribute;
class NodeVisitor;
class OSG_EXPORT StateAttributeCallback : public virtual osg::Object
{
public:
StateAttributeCallback() {}
StateAttributeCallback(const StateAttributeCallback&,const CopyOp&) {}
META_Object(osg,StateAttributeCallback);
/** do customized update code.*/
virtual void operator () (StateAttribute*, NodeVisitor*) {}
};
}
#endif