Hi,
I wan't to show QT controls inside my OSG scene.
I introduced with the examples "osghud" and "osgQTWidgets" from the osg project.
First i create a sample project to solve my issue.
The problem is, that the QT- controls are never been displayed on my scene.
I suppose the problem is the WidgetImage or the ImageHandler that i use, but i
have no idea.
Any help is welcome.. :D
Thank you!
Cheers,
Tobias
Code:
TextView::TextView()
{
_HUDCamera = new osg::Camera;
_HUDCamera->setProjectionMatrix(osg::Matrix::ortho2D(0,640,0,480));
_HUDCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
_HUDCamera->setViewMatrix(osg::Matrix::identity());
_HUDCamera->setClearMask(GL_DEPTH_BUFFER_BIT);
_HUDCamera->setRenderOrder(osg::Camera::POST_RENDER);
_HUDCamera->setAllowEventFocus(false);
_HUDCamera->getOrCreateStateSet()->setMode( GL_LIGHTING,
osg::StateAttribute::OFF );
_HUDCamera->getOrCreateStateSet()->setMode( GL_BLEND,
osg::StateAttribute::ON );
}
TextView::~TextView(void)
{
}
osg::Camera* TextView::creation()
{
osg::ref_ptr<osgQt::QWidgetImage> widgetImage = new
osgQt::QWidgetImage( createDemoWidget() );
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
texture->setImage( widgetImage.get() );
osg::ref_ptr<osgViewer::InteractiveImageHandler> handler = new
osgViewer::InteractiveImageHandler( widgetImage.get(),texture,_HUDCamera);
osg::ref_ptr<osg::Geometry> quad =
osg::createTexturedQuadGeometry(osg::Vec3(), osg::X_AXIS, osg::Z_AXIS);
quad->setEventCallback( handler.get() );
quad->setCullCallback( handler.get() );
osg::ref_ptr<osg::MatrixTransform> part = new osg::MatrixTransform;
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
geode->addDrawable( quad.get() );
geode->getOrCreateStateSet()->setTextureAttributeAndModes( 0, texture.get()
);
geode->getOrCreateStateSet()->setMode(GL_LIGHTING,
osg::StateAttribute::OFF);
geode->getOrCreateStateSet()->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
part->getOrCreateStateSet()->setTextureAttributeAndModes( 0,
texture.get() );
part->getOrCreateStateSet()->setRenderingHint(
osg::StateSet::TRANSPARENT_BIN );
part->addChild( geode.get() );
/*osg::Node* n = osgDB::readNodeFile("C:\\cow.osg");*/
_HUDCamera->addChild(part);
return _HUDCamera;
}
QWidget* TextView::createDemoWidget( )
{
QLabel* label = new QLabel;
QPushButton* playBtn = new QPushButton("Play");
QPushButton* stopBtn = new QPushButton("Stop");
QWidget* demo = new QWidget;
demo->setGeometry( 0, 0, 800, 600 );
demo->setLayout( new QVBoxLayout );
demo->layout()->addWidget( label );
demo->layout()->addWidget( playBtn );
demo->layout()->addWidget( stopBtn );
return demo;
}
int main( int argc, char** argv )
{
QApplication app( argc, argv );
osgViewer::Viewer viewer;
TextView* text = new TextView();
osg::ref_ptr<osg::Group> root = new osg::Group;
osg::Node* n = osgDB::readNodeFile("C:\\cow.osg");
root->addChild(text->creation());
viewer.setSceneData( root.get() );
viewer.setCameraManipulator( new osgGA::TrackballManipulator );
viewer.addEventHandler( new osgViewer::StatsHandler );
viewer.setUpViewOnSingleScreen();
while ( !viewer.done() )
{
QCoreApplication::processEvents( QEventLoop::AllEvents, 100 );
viewer.frame();
}
return 0;
}
:D :D
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=50475#50475
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