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/* -*-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 OSGVIEWER_Viewer
#define OSGVIEWER_Viewer 1
#include <osg/ArgumentParser>
#include <osgGA/EventVisitor>
#include <osgUtil/UpdateVisitor>
#include <osgViewer/GraphicsWindow>
#include <osgViewer/View>
namespace osgViewer {
/** Viewer holds a single view on to a single scene.*/
class OSGVIEWER_EXPORT Viewer : public ViewerBase, public osgViewer::View
{
public:
Viewer();
Viewer(osg::ArgumentParser& arguments);
Viewer(const osgViewer::Viewer& viewer, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
virtual ~Viewer();
META_Object(osgViewer,Viewer);
/** Take all the settings, Camera and Slaves from the passed in view(er), leaving it empty. */
virtual void take(View& rhs);
/** Set the Stats object used for collect various frame related timing and scene graph stats.*/
virtual void setViewerStats(osg::Stats* stats) { setStats(stats); }
/** Get the Viewers Stats object.*/
virtual osg::Stats* getViewerStats() { return getStats(); }
/** Get the Viewers Stats object.*/
virtual const osg::Stats* getViewerStats() const { return getStats(); }
/** read the viewer configuration from a configuration file.*/
virtual bool readConfiguration(const std::string& filename);
/** Get whether at least of one of this viewers windows are realized.*/
virtual bool isRealized() const;
/** set up windows and associated threads.*/
virtual void realize();
virtual void setStartTick(osg::Timer_t tick);
void setReferenceTime(double time=0.0);
/** Set the sene graph data that viewer with view.*/
virtual void setSceneData(osg::Node* node);
/** Convenience method for setting up the viewer so it can be used embedded in an external managed window.
* Returns the GraphicsWindowEmbedded that can be used by applications to pass in events to the viewer. */
virtual GraphicsWindowEmbedded* setUpViewerAsEmbeddedInWindow(int x, int y, int width, int height);
virtual double elapsedTime();
virtual osg::FrameStamp* getViewerFrameStamp() { return getFrameStamp(); }
/** Execute a main frame loop.
* Equivalent to while (!viewer.done()) viewer.frame();
* Also calls realize() if the viewer is not already realized,
* and installs trackball manipulator if one is not already assigned.
*/
virtual int run();
virtual void advance(double simulationTime=USE_REFERENCE_TIME);
virtual void eventTraversal();
virtual void updateTraversal();
void setCameraWithFocus(osg::Camera* camera) { _cameraWithFocus = camera; }
osg::Camera* getCameraWithFocus() { return _cameraWithFocus.get(); }
const osg::Camera* getCameraWithFocus() const { return _cameraWithFocus.get(); }
virtual void getCameras(Cameras& cameras, bool onlyActive=true);
virtual void getContexts(Contexts& contexts, bool onlyValid=true);
virtual void getAllThreads(Threads& threads, bool onlyActive=true);
virtual void getOperationThreads(OperationThreads& threads, bool onlyActive=true);
virtual void getScenes(Scenes& scenes, bool onlyValid=true);
virtual void getViews(Views& views, bool onlyValid=true);
/** Get the keyboard and mouse usage of this viewer.*/
virtual void getUsage(osg::ApplicationUsage& usage) const;
protected:
void constructorInit();
virtual void viewerInit() { init(); }
osg::observer_ptr<osg::Camera> _cameraWithFocus;
};
}
#endif
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