Ejemplo n.º 1
0
QGraphicsViewAdapter::QGraphicsViewAdapter(osg::Image* image, QWidget* widget):
    _image(image),
    _previousQtMouseX(-1),
    _previousQtMouseY(-1),
    _previousSentEvent(false),
    _qtKeyModifiers(Qt::NoModifier),
    _backgroundColor(255, 255, 255),
    _widget(widget)
{
    // make sure we have a valid QApplication before we start creating widgets.
    getOrCreateQApplication();


    setUpKeyMap();

    _graphicsScene = new QGraphicsScene;
    _graphicsScene->addWidget(widget);

    _graphicsView = new QGraphicsView;
    _graphicsView->setScene(_graphicsScene);
    _graphicsView->viewport()->setParent(0);

#if (QT_VERSION_CHECK(4, 5, 0) <= QT_VERSION)
    _graphicsScene->setStickyFocus(true);
#endif

    _width = _graphicsScene->width();
    _height = _graphicsScene->height();

    _qimages[0] = QImage(QSize(_width, _height), s_imageFormat);
    _qimages[1] = QImage(QSize(_width, _height), s_imageFormat);
    _qimages[2] = QImage(QSize(_width, _height), s_imageFormat);

    _currentRead = 0;
    _currentWrite = 1;
    _previousWrite = 2;
    _previousFrameNumber = 0;
    _newImageAvailable = false;

    connect(_graphicsScene, SIGNAL(changed(const QList<QRectF> &)),
            this, SLOT(repaintRequestedSlot(const QList<QRectF> &)));
    connect(_graphicsScene, SIGNAL(sceneRectChanged(const QRectF &)),
            this, SLOT(repaintRequestedSlot(const QRectF &)));

    assignImage(0);
}
QGraphicsViewAdapter::QGraphicsViewAdapter( osg::Image* image, QWidget* widget ):
	_image( image ),

	_qtKeyModifiers( Qt::NoModifier ),
	_backgroundColor( 255,255,255 )
{
	// make sure we have a valid QApplication before we start creating widgets.
	this->getOrCreateQApplication();


	setUpKeyMap();

	_graphicsScene = new QGraphicsScene();
	_graphicsView = new QGraphicsView;
	_graphicsScene->addWidget( widget );
	_graphicsView->setScene( _graphicsScene );
#if (QT_VERSION_CHECK(4, 5, 0) <= QT_VERSION)
	_graphicsScene->setStickyFocus( true );
#endif
	_graphicsView->viewport()->setParent( 0 );


	int width = ( int ) _graphicsScene->width();
	int height = ( int ) _graphicsScene->height();

	_qimages[0] = QImage( QSize( width, height ), QImage::Format_ARGB32 );
	_qimages[0].fill( _backgroundColor.rgba() );
	_qimages[0] = QGLWidget::convertToGLFormat( _qimages[0] );

	_qimages[1] = QImage( QSize( width, height ), QImage::Format_ARGB32 );
	_qimages[1].fill( _backgroundColor.rgba() );

	_qimages[2] = QImage( QSize( width, height ), QImage::Format_ARGB32 );
	_qimages[2].fill( _backgroundColor.rgba() );

	_currentRead = 0;
	_currentWrite = 1;
	_previousWrite = 2;
	_previousFrameNumber = 0;
	_newImageAvailable = false;

	connect( _graphicsScene, SIGNAL( changed( const QList<QRectF>& ) ),
			 this, SLOT( repaintRequestedSlot( const QList<QRectF>& ) ) );

	assignImage( 0 );
}