118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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 OSGGA_SimpleViewer
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#define OSGGA_SimpleViewer 1
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#include <osgGA/EventQueue>
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#include <osgGA/EventVisitor>
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#include <osgGA/MatrixManipulator>
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#include <osgDB/DatabasePager>
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#include <list>
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namespace osgGA{
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/** SimpleViewer provide a simple interface for setting up rendering of an scene graph, using a single camera view within a single window.*/
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class OSGGA_EXPORT SimpleViewer : public osgGA::GUIActionAdapter, public osg::Referenced
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{
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public:
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SimpleViewer();
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virtual ~SimpleViewer();
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void setSceneData(osg::Node* node);
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osg::Node* getSceneData();
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const osg::Node* getSceneData() const;
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osg::CameraNode* getCamera();
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const osg::CameraNode* getCamera() const;
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void setCameraManipulator(MatrixManipulator* manipulator);
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MatrixManipulator* getCameraManipulator() { return _cameraManipulator.get(); }
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const MatrixManipulator* getCameraManipulator() const { return _cameraManipulator.get(); }
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typedef std::list< osg::ref_ptr<GUIEventHandler> > EventHandlers;
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void addEventHandler(GUIEventHandler* eventHandler);
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EventHandlers& getEventHandlers() { return _eventHandlers; }
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const EventHandlers& getEventHandlers() const { return _eventHandlers; }
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EventQueue* getEventQueue() { return _eventQueue.get(); }
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const EventQueue* getEventQueue() const { return _eventQueue.get(); }
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void setDatabasePager(osgDB::DatabasePager* dp);
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osgDB::DatabasePager* getDatabasePager() { return _databasePager.get(); }
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const osgDB::DatabasePager* getDatabasePager() const { return _databasePager.get(); }
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/** Render a complete new frame.
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* Calls frameAdvance(), frameEventTraversal(), frameUpateTraversal(), frameCullTraversal() and frameDrawTraversal().
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* Note, no internal makeCurrent() is issued before, or swap buffers called after frame(), these operations are the responsibility of the calling code.*/
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virtual void frame();
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virtual void frameAdvance();
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virtual void frameEventTraversal();
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virtual void frameUpdateTraversal();
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virtual void frameCullTraversal();
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virtual void frameDrawTraversal();
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/** Release all OpenGL objects associated with this viewer's scenegraph. Note, does not deleted the actual OpenGL objects, it just releases them to the pending GL object delete lists which will need flushing once a valid graphics context is obtained.*/
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virtual void releaseAllGLObjects();
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/** Clean up all OpenGL objects associated with this viewer's scenegraph. Note, must only be called from the graphics context associated with this viewer.*/
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virtual void cleanup();
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public:
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// Override from GUIActionAdapter
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virtual void requestRedraw() {}
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// Override from GUIActionAdapter
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virtual void requestContinuousUpdate(bool /*needed*/=true) {}
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// Override from GUIActionAdapter
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virtual void requestWarpPointer(float /*x*/,float /*y*/) {}
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osgUtil::SceneView* getSceneView() { return _sceneView.get(); }
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const osgUtil::SceneView* getSceneView() const { return _sceneView.get(); }
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void init();
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protected:
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bool _firstFrame;
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osg::Timer_t _startTick;
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osg::ref_ptr<osg::FrameStamp> _frameStamp;
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osg::ref_ptr<osgUtil::SceneView> _sceneView;
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osg::ref_ptr<osgGA::EventQueue> _eventQueue;
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osg::ref_ptr<osgGA::MatrixManipulator> _cameraManipulator;
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EventHandlers _eventHandlers;
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osg::ref_ptr<osgGA::EventVisitor> _eventVisitor;
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osg::ref_ptr<osgDB::DatabasePager> _databasePager;
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};
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}
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#endif
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