/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 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 #include #include #include 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(); /** 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); virtual void apply(osg::Geode& geode); protected: osg::ref_ptr _ds; }; } #endif