| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 |
- /* -*-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
|
