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I have trouble using the QgraphicsScene in Qt.
When I am initializing the QGraphicsScene in the main.cpp i am able to use that. But when I am try to add that to an Widget & then add that to the main window its not working, I am not able to view anything. What is the problem?
Darryl DSouza last edited by
Could you please post your code?
You probably have no QGraphicsView for the scene. Try to create a view(it's obvious it should be custom and inherit QGraphicsView class) and then type something like;
Then add some items into the scene to check if it's working or not.
i am using
@ QGraphicsScene scene;
scene.setSceneRect(-300, -300, 600, 600);
view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
QPixmap pm( IMG_BACKGROUND ); field.setBackgroundBrush( pm );@
inside the widget. And when I am calling the widget in the main window. The widget space is created but so QGraphicsScene is coming.
Did you set the parent of the view?
how to do that???
I am only using this much.
thanks it solved my problem :)
goetz last edited by
[quote author="zgulser" date="1297759295"]view->setParent(this)[/quote]
Better set the parent in the constructor call:
QGraphicsView view(&scene, parentPointer);
// parentPointer could be this (if it's QObject based)
// or any other QObject that makes sense for your app
All QObject based classes take a parent pointer as an optional argument.