| 1 | #include <QtCore/QTimer> |
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| 2 | #include <QtGui/QApplication> |
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| 3 | #include <QtGui/QGridLayout> |
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| 4 | |
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| 5 | #include <osgViewer/CompositeViewer> |
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| 6 | #include <osgViewer/ViewerEventHandlers> |
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| 7 | |
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| 8 | #include <osgGA/TrackballManipulator> |
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| 9 | |
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| 10 | #include <osgDB/ReadFile> |
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| 11 | |
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| 12 | #include <osgQt/GraphicsWindowQt> |
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| 13 | |
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| 14 | #include <iostream> |
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| 15 | |
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| 16 | class ViewerWidget : public QWidget, public osgViewer::CompositeViewer |
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| 17 | { |
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| 18 | public: |
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| 19 | ViewerWidget(osgViewer::ViewerBase::ThreadingModel threadingModel=osgViewer::CompositeViewer::SingleThreaded) : QWidget() |
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| 20 | { |
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| 21 | setThreadingModel(threadingModel); |
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| 22 | |
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| 23 | QWidget* widget1 = addViewWidget( createCamera(0,0,100,100), osgDB::readNodeFile("cow.osg") ); |
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| 24 | QWidget* widget2 = addViewWidget( createCamera(0,0,100,100), osgDB::readNodeFile("glider.osg") ); |
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| 25 | QWidget* widget3 = addViewWidget( createCamera(0,0,100,100), osgDB::readNodeFile("axes.osg") ); |
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| 26 | QWidget* widget4 = addViewWidget( createCamera(0,0,100,100), osgDB::readNodeFile("fountain.osg") ); |
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| 27 | QWidget* popupWidget = addViewWidget( createCamera(900,100,320,240,"Popup window",true), |
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| 28 | osgDB::readNodeFile("dumptruck.osg") ); |
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| 29 | popupWidget->show(); |
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| 30 | |
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| 31 | QGridLayout* grid = new QGridLayout; |
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| 32 | grid->addWidget( widget1, 0, 0 ); |
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| 33 | grid->addWidget( widget2, 0, 1 ); |
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| 34 | grid->addWidget( widget3, 1, 0 ); |
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| 35 | grid->addWidget( widget4, 1, 1 ); |
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| 36 | setLayout( grid ); |
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| 37 | |
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| 38 | connect( &_timer, SIGNAL(timeout()), this, SLOT(update()) ); |
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| 39 | _timer.start( 10 ); |
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| 40 | } |
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| 41 | |
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| 42 | QWidget* addViewWidget( osg::Camera* camera, osg::Node* scene ) |
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| 43 | { |
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| 44 | osgViewer::View* view = new osgViewer::View; |
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| 45 | view->setCamera( camera ); |
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| 46 | addView( view ); |
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| 47 | |
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| 48 | view->setSceneData( scene ); |
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| 49 | view->addEventHandler( new osgViewer::StatsHandler ); |
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| 50 | view->setCameraManipulator( new osgGA::TrackballManipulator ); |
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| 51 | |
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| 52 | osgQt::GraphicsWindowQt* gw = dynamic_cast<osgQt::GraphicsWindowQt*>( camera->getGraphicsContext() ); |
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| 53 | return gw ? gw->getGLWidget() : NULL; |
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| 54 | } |
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| 55 | |
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| 56 | osg::Camera* createCamera( int x, int y, int w, int h, const std::string& name="", bool windowDecoration=false ) |
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| 57 | { |
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| 58 | osg::DisplaySettings* ds = osg::DisplaySettings::instance().get(); |
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| 59 | osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; |
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| 60 | traits->windowName = name; |
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| 61 | traits->windowDecoration = windowDecoration; |
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| 62 | traits->x = x; |
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| 63 | traits->y = y; |
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| 64 | traits->width = w; |
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| 65 | traits->height = h; |
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| 66 | traits->doubleBuffer = true; |
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| 67 | traits->alpha = ds->getMinimumNumAlphaBits(); |
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| 68 | traits->stencil = ds->getMinimumNumStencilBits(); |
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| 69 | traits->sampleBuffers = ds->getMultiSamples(); |
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| 70 | traits->samples = ds->getNumMultiSamples(); |
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| 71 | |
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| 72 | osg::ref_ptr<osg::Camera> camera = new osg::Camera; |
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| 73 | camera->setGraphicsContext( new osgQt::GraphicsWindowQt(traits.get()) ); |
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| 74 | |
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| 75 | camera->setClearColor( osg::Vec4(0.2, 0.2, 0.6, 1.0) ); |
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| 76 | camera->setViewport( new osg::Viewport(0, 0, traits->width, traits->height) ); |
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| 77 | camera->setProjectionMatrixAsPerspective( |
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| 78 | 30.0f, static_cast<double>(traits->width)/static_cast<double>(traits->height), 1.0f, 10000.0f ); |
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| 79 | return camera.release(); |
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| 80 | } |
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| 81 | |
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| 82 | virtual void paintEvent( QPaintEvent* event ) |
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| 83 | { frame(); } |
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| 84 | |
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| 85 | protected: |
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| 86 | |
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| 87 | QTimer _timer; |
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| 88 | }; |
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| 89 | |
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| 90 | int main( int argc, char** argv ) |
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| 91 | { |
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| 92 | osg::ArgumentParser arguments(&argc, argv); |
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| 93 | |
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| 94 | osgViewer::ViewerBase::ThreadingModel threadingModel = osgViewer::ViewerBase::CullDrawThreadPerContext; |
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| 95 | while (arguments.read("--SingleThreaded")) threadingModel = osgViewer::ViewerBase::SingleThreaded; |
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| 96 | while (arguments.read("--CullDrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::CullDrawThreadPerContext; |
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| 97 | while (arguments.read("--DrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::DrawThreadPerContext; |
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| 98 | while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::CullThreadPerCameraDrawThreadPerContext; |
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| 99 | |
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| 100 | QApplication app(argc, argv); |
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| 101 | ViewerWidget* viewWidget = new ViewerWidget(threadingModel); |
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| 102 | viewWidget->setGeometry( 100, 100, 800, 600 ); |
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| 103 | viewWidget->show(); |
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| 104 | return app.exec(); |
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| 105 | } |
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