help with QGraphicsView

[Erlendhg]

How can I do that?

I tried this:

eventView = new QGraphicsView(ui.centralWidget);
eventView->setGeometry(QRect(5, 60, 591, 81));
eventView->setFrameShape(QFrame::Box);
eventView->setFrameShadow(QFrame::Plain);
 
eventScene = new scene;
 
eventView->setScene(eventScene);
eventScene->setSceneRect(0, 0, 480000, 50);
 
QPointF a = eventView->mapToScene(0, 0);
 
eventScene->addRect(QRectF(a.x(), a.y(), 100, 12), QPen(Qt::green), QBrush(Qt::blue));
eventScene->addRect(QRectF(a.x(), a.y()+12, 100, 12), QPen(Qt::red), QBrush(Qt::yellow));

eventView = new QGraphicsView(ui.centralWidget);
eventView->setGeometry(QRect(5, 60, 591, 81));
eventView->setFrameShape(QFrame::Box);
eventView->setFrameShadow(QFrame::Plain);

eventScene = new scene;

eventView->setScene(eventScene);
eventScene->setSceneRect(0, 0, 480000, 50);

QPointF a = eventView->mapToScene(0, 0);

eventScene->addRect(QRectF(a.x(), a.y(), 100, 12), QPen(Qt::green), QBrush(Qt::blue));
eventScene->addRect(QRectF(a.x(), a.y()+12, 100, 12), QPen(Qt::red), QBrush(Qt::yellow));

To copy to clipboard, switch view to plain text mode 

but when I then scale the whole thing with let's say

eventView->scale(2, 2);

eventView->scale(2, 2);

To copy to clipboard, switch view to plain text mode 

the blue box is cut away, because the top left corner is no longer (0,-14) but (0,0)!

And that is a problem for me. Any help further is really appreciated!

Erlend Graff