60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/* -*-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 OSGUTIL_DISPLAYREQUIREMENTSVISITOR
|
|
#define OSGUTIL_DISPLAYREQUIREMENTSVISITOR 1
|
|
|
|
#include <osg/NodeVisitor>
|
|
#include <osg/Geode>
|
|
#include <osg/DisplaySettings>
|
|
|
|
#include <osgUtil/Export>
|
|
|
|
namespace osgUtil {
|
|
|
|
/** A visitor for traversing a scene graph establishing which OpenGL visuals are
|
|
* required to support rendering of that scene graph. The results can then be used by
|
|
* applications to set up their windows with the correct visuals. Have a look at
|
|
* src/osgGLUT/Viewer.cpp's Viewer::open() method for an example of how to use it.
|
|
*/
|
|
class OSGUTIL_EXPORT DisplayRequirementsVisitor : public osg::NodeVisitor
|
|
{
|
|
public:
|
|
|
|
/** Default to traversing all children, and requiresDoubleBuffer,
|
|
* requiresRGB and requiresDepthBuffer to true and with
|
|
* alpha and stencil off.*/
|
|
DisplayRequirementsVisitor();
|
|
|
|
META_NodeVisitor(osgUtil, DisplayRequirementsVisitor)
|
|
|
|
/** Set the DisplaySettings. */
|
|
inline void setDisplaySettings(osg::DisplaySettings* ds) { _ds = ds; }
|
|
|
|
/** Get the DisplaySettings */
|
|
inline const osg::DisplaySettings* getDisplaySettings() const { return _ds.get(); }
|
|
|
|
virtual void applyStateSet(osg::StateSet& stateset);
|
|
|
|
virtual void apply(osg::Node& node);
|
|
|
|
protected:
|
|
|
|
osg::ref_ptr<osg::DisplaySettings> _ds;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|