167 lines
4.4 KiB
C++
167 lines
4.4 KiB
C++
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
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#include <osgViewer/Viewer>
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#include <osgViewer/StatsHandler>
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#include <osgGA/TrackballManipulator>
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#include <osgDB/ReadFile>
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#if USE_QT4
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#include <QtCore/QTimer>
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#include <QtGui/QKeyEvent>
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#include <QtGui/QApplication>
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#include <QtOpenGL/QGLWidget>
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using Qt::WFlags;
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#else
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class QWidget;
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#include <qtimer.h>
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#include <qgl.h>
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#include <qapplication.h>
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#endif
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#include <iostream>
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class AdapterWidget : public QGLWidget
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{
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public:
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AdapterWidget( QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WFlags f = 0 );
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virtual ~AdapterWidget() {}
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osgViewer::GraphicsWindow* getGraphicsWindow() { return _gw.get(); }
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const osgViewer::GraphicsWindow* getGraphicsWindow() const { return _gw.get(); }
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protected:
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void init();
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virtual void resizeGL( int width, int height );
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virtual void keyPressEvent( QKeyEvent* event );
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virtual void keyReleaseEvent( QKeyEvent* event );
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virtual void mousePressEvent( QMouseEvent* event );
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virtual void mouseReleaseEvent( QMouseEvent* event );
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virtual void mouseMoveEvent( QMouseEvent* event );
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osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> _gw;
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};
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AdapterWidget::AdapterWidget( QWidget * parent, const char * name, const QGLWidget * shareWidget, WFlags f):
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QGLWidget(parent, name, shareWidget, f)
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{
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_gw = new osgViewer::GraphicsWindowEmbedded(0,0,width(),height());
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}
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void AdapterWidget::resizeGL( int width, int height )
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{
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_gw->getEventQueue()->windowResize(0, 0, width, height );
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_gw->resized(0,0,width,height);
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}
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void AdapterWidget::keyPressEvent( QKeyEvent* event )
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{
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_gw->getEventQueue()->keyPress( (osgGA::GUIEventAdapter::KeySymbol) event->ascii() );
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}
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void AdapterWidget::keyReleaseEvent( QKeyEvent* event )
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{
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_gw->getEventQueue()->keyRelease( (osgGA::GUIEventAdapter::KeySymbol) event->ascii() );
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}
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void AdapterWidget::mousePressEvent( QMouseEvent* event )
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{
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int button = 0;
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switch(event->button())
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{
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case(Qt::LeftButton): button = 1; break;
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case(Qt::MidButton): button = 2; break;
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case(Qt::RightButton): button = 3; break;
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case(Qt::NoButton): button = 0; break;
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default: button = 0; break;
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}
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_gw->getEventQueue()->mouseButtonPress(event->x(), event->y(), button);
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}
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void AdapterWidget::mouseReleaseEvent( QMouseEvent* event )
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{
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int button = 0;
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switch(event->button())
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{
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case(Qt::LeftButton): button = 1; break;
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case(Qt::MidButton): button = 2; break;
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case(Qt::RightButton): button = 3; break;
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case(Qt::NoButton): button = 0; break;
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default: button = 0; break;
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}
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_gw->getEventQueue()->mouseButtonRelease(event->x(), event->y(), button);
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}
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void AdapterWidget::mouseMoveEvent( QMouseEvent* event )
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{
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_gw->getEventQueue()->mouseMotion(event->x(), event->y());
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}
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class ViewerQT : public osgViewer::Viewer, public AdapterWidget
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{
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public:
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ViewerQT(QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WFlags f = 0):
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AdapterWidget( parent, name, shareWidget, f )
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{
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getCamera()->setViewport(new osg::Viewport(0,0,width(),height()));
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getCamera()->setGraphicsContext(getGraphicsWindow());
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setThreadingModel(osgViewer::Viewer::SingleThreaded);
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connect(&_timer, SIGNAL(timeout()), this, SLOT(updateGL()));
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_timer.start(10);
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}
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virtual void paintGL()
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{
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frame();
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}
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protected:
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QTimer _timer;
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};
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int main( int argc, char **argv )
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{
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QApplication a( argc, argv );
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if (argc<2)
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{
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std::cout << argv[0] <<": requires filename argument." << std::endl;
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return 1;
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}
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// load the scene.
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osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
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if (!loadedModel)
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{
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std::cout << argv[0] <<": No data loaded." << std::endl;
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return 1;
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}
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ViewerQT* viewerWindow = new ViewerQT;
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viewerWindow->setSceneData(loadedModel.get());
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viewerWindow->setCameraManipulator(new osgGA::TrackballManipulator);
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viewerWindow->addEventHandler(new osgViewer::StatsHandler);
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viewerWindow->show();
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a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()) );
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return a.exec();
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}
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/*EOF*/
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