63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGUTIL_DISPLAYREQUIREMENTSVISITOR
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#define OSGUTIL_DISPLAYREQUIREMENTSVISITOR 1
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#include <osg/NodeVisitor>
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#include <osg/Geode>
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#include <osg/DisplaySettings>
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#include <osgUtil/Export>
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namespace osgUtil {
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/** A visitor for traversing a scene graph establishing which OpenGL visuals are
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* required to support rendering of that scene graph. The results can then be used by
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* applications to set up their windows with the correct visuals. Have a look at
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* src/osgGLUT/Viewer.cpp's Viewer::open() method for an example of how to use it.
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*/
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class OSGUTIL_EXPORT DisplayRequirementsVisitor : public osg::NodeVisitor
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{
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public:
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/** Default to traversing all children, and requiresDoubleBuffer,
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* requiresRGB and requiresDepthBuffer to true and with
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* alpha and stencil off.*/
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DisplayRequirementsVisitor();
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/** Set the DisplaySettings. */
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inline void setDisplaySettings(osg::DisplaySettings* ds) { _ds = ds; }
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/** Get the DisplaySettings */
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inline const osg::DisplaySettings* getDisplaySettings() const { return _ds.get(); }
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virtual void applyStateSet(osg::StateSet& stateset);
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virtual void apply(osg::Node& node);
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virtual void apply(osg::Geode& geode);
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virtual void apply(osg::Impostor& impostor);
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protected:
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osg::ref_ptr<osg::DisplaySettings> _ds;
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};
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}
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#endif
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