Hello Robert,
i had some trouble compiling 'osgviewerQT' under Debian 4.0 using Qt
4.3.0 (installed in my home directory) and CMake. 'QKeyEvent' class does
not define 'ascii()' method now. 'Qt::WFlags' was renamed in
'Qt::WindowFlags'. The attached file 'osgviewerQT.cpp' contains all changes.
I had to change 'CMakeLists.txt' because of link errors, too (see
attachment). I used CMake under Linux for the first time, so maybe i
missed something. I had to add
${QT_QTCORE_LIBRARY_RELEASE} ${QT_QTGUI_LIBRARY_RELEASE}
${QT_QTOPENGL_LIBRARY_RELEASE}
to
TARGET_EXTERNAL_LIBRARIES
manually. After these changes I was able to build the 'osgviewerQT' example.
Oleg
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
#include <osgViewer/Viewer>
#include <osgViewer/CompositeViewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgGA/TrackballManipulator>
#include <osgDB/ReadFile>
#if USE_QT4
#include <QtCore/QString>
#include <QtCore/QTimer>
#include <QtGui/QKeyEvent>
#include <QtGui/QApplication>
#include <QtOpenGL/QGLWidget>
//using Qt::WFlags;
using Qt::WindowFlags;
#else
class QWidget;
#include <qtimer.h>
#include <qgl.h>
#include <qapplication.h>
#endif
#include <iostream>
class AdapterWidget : public QGLWidget
{
public:
AdapterWidget( QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WindowFlags f = 0 );
virtual ~AdapterWidget() {}
osgViewer::GraphicsWindow* getGraphicsWindow() { return _gw.get(); }
const osgViewer::GraphicsWindow* getGraphicsWindow() const { return _gw.get(); }
protected:
void init();
virtual void resizeGL( int width, int height );
virtual void keyPressEvent( QKeyEvent* event );
virtual void keyReleaseEvent( QKeyEvent* event );
virtual void mousePressEvent( QMouseEvent* event );
virtual void mouseReleaseEvent( QMouseEvent* event );
virtual void mouseMoveEvent( QMouseEvent* event );
osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> _gw;
};
AdapterWidget::AdapterWidget( QWidget * parent, const char * name, const QGLWidget * shareWidget, WindowFlags f):
// QGLWidget(parent, name, shareWidget, f)
QGLWidget(parent, shareWidget, f)
{
_gw = new osgViewer::GraphicsWindowEmbedded(0,0,width(),height());
}
void AdapterWidget::resizeGL( int width, int height )
{
_gw->getEventQueue()->windowResize(0, 0, width, height );
_gw->resized(0,0,width,height);
}
void AdapterWidget::keyPressEvent( QKeyEvent* event )
{
_gw->getEventQueue()->keyPress( (osgGA::GUIEventAdapter::KeySymbol) event->text().toInt() );
}
void AdapterWidget::keyReleaseEvent( QKeyEvent* event )
{
_gw->getEventQueue()->keyRelease( (osgGA::GUIEventAdapter::KeySymbol) event->text().toInt() );
}
void AdapterWidget::mousePressEvent( QMouseEvent* event )
{
int button = 0;
switch(event->button())
{
case(Qt::LeftButton): button = 1; break;
case(Qt::MidButton): button = 2; break;
case(Qt::RightButton): button = 3; break;
case(Qt::NoButton): button = 0; break;
default: button = 0; break;
}
_gw->getEventQueue()->mouseButtonPress(event->x(), event->y(), button);
}
void AdapterWidget::mouseReleaseEvent( QMouseEvent* event )
{
int button = 0;
switch(event->button())
{
case(Qt::LeftButton): button = 1; break;
case(Qt::MidButton): button = 2; break;
case(Qt::RightButton): button = 3; break;
case(Qt::NoButton): button = 0; break;
default: button = 0; break;
}
_gw->getEventQueue()->mouseButtonRelease(event->x(), event->y(), button);
}
void AdapterWidget::mouseMoveEvent( QMouseEvent* event )
{
_gw->getEventQueue()->mouseMotion(event->x(), event->y());
}
class ViewerQT : public osgViewer::Viewer, public AdapterWidget
{
public:
ViewerQT(QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WindowFlags f = 0):
AdapterWidget( parent, name, shareWidget, f )
{
getCamera()->setViewport(new osg::Viewport(0,0,width(),height()));
getCamera()->setGraphicsContext(getGraphicsWindow());
setThreadingModel(osgViewer::Viewer::SingleThreaded);
connect(&_timer, SIGNAL(timeout()), this, SLOT(updateGL()));
_timer.start(10);
}
virtual void paintGL()
{
frame();
}
protected:
QTimer _timer;
};
class CompositeViewerQT : public osgViewer::CompositeViewer, public AdapterWidget
{
public:
CompositeViewerQT(QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WindowFlags f = 0):
AdapterWidget( parent, name, shareWidget, f )
{
setThreadingModel(osgViewer::CompositeViewer::SingleThreaded);
connect(&_timer, SIGNAL(timeout()), this, SLOT(updateGL()));
_timer.start(10);
}
virtual void paintGL()
{
frame();
}
protected:
QTimer _timer;
};
int main( int argc, char **argv )
{
QApplication a( argc, argv );
if (argc<2)
{
std::cout << argv[0] <<": requires filename argument." << std::endl;
return 1;
}
osg::ArgumentParser arguments(&argc, argv);
// load the scene.
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
if (!loadedModel)
{
std::cout << argv[0] <<": No data loaded." << std::endl;
return 1;
}
if (arguments.read("--CompositeViewer"))
{
CompositeViewerQT* viewerWindow = new CompositeViewerQT;
unsigned int width = viewerWindow->width();
unsigned int height = viewerWindow->height();
{
osgViewer::View* view1 = new osgViewer::View;
view1->getCamera()->setGraphicsContext(viewerWindow->getGraphicsWindow());
view1->getCamera()->setProjectionMatrixAsPerspective(30.0f, static_cast<double>(width)/static_cast<double>(height/2), 1.0, 1000.0);
view1->getCamera()->setViewport(new osg::Viewport(0,0,width,height/2));
view1->setCameraManipulator(new osgGA::TrackballManipulator);
view1->setSceneData(loadedModel.get());
viewerWindow->addView(view1);
}
{
osgViewer::View* view2 = new osgViewer::View;
view2->getCamera()->setGraphicsContext(viewerWindow->getGraphicsWindow());
view2->getCamera()->setProjectionMatrixAsPerspective(30.0f, static_cast<double>(width)/static_cast<double>(height/2), 1.0, 1000.0);
view2->getCamera()->setViewport(new osg::Viewport(0,height/2,width,height/2));
view2->setCameraManipulator(new osgGA::TrackballManipulator);
view2->setSceneData(loadedModel.get());
viewerWindow->addView(view2);
}
viewerWindow->show();
}
else
{
ViewerQT* viewerWindow = new ViewerQT;
viewerWindow->setCameraManipulator(new osgGA::TrackballManipulator);
viewerWindow->setSceneData(loadedModel.get());
viewerWindow->show();
}
a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()) );
return a.exec();
}
/*EOF*/
SET(TARGET_SRC osgviewerQT.cpp )
#SET(TARGET_EXTERNAL_LIBRARIES ${QT_LIBRARIES} )
SET(TARGET_EXTERNAL_LIBRARIES ${QT_QTCORE_LIBRARY_RELEASE}
${QT_QTGUI_LIBRARY_RELEASE} ${QT_QTOPENGL_LIBRARY_RELEASE} )
INCLUDE_DIRECTORIES(${QT_INCLUDE_DIR} )
IF (QT4_FOUND)
ADD_DEFINITIONS(-DUSE_QT4)
ENDIF(QT4_FOUND)
#### end var setup ###
SETUP_EXAMPLE(osgviewerQT)
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