1. I want to know starting and ending X position of displayed data on every scroll.
which event get called on scrolling QGraphicsView or QGraphicsScene
where I handle scrolling?
2. can I fix some item in QGraphicsScene, so, it will be displayed on scrolling also?
3.
setFlag( QGraphicsItem::ItemIsMovable );
can I fix to move QGraphicsItem only in X direction not in Y direction?