Tracking the mouse position on the QGraphicsItem

Question

I have a subclass of QGraphicsItem and I want to track mouse position every time I hover the mouse on that Item alone and it should give the relative position to the QGraphicsItem . I know, how to handle this when there is QWidget (using QWidget.setMouseTracking ) and QMainWindow (by installing event filters), but I cant figure out how to do it for QGraphicsItem . The mouse move event is only triggered, when there is mouse press event, but that's not what is want. I want a trigger whenever I hover on that QGraphicsItem . Please provide your suggestions

Answer 1

You will want to use my_item.setAcceptHoverEvents(True) to enable mouse move events without the mouse press event.

Note, this will not trigger a mouseMoveEvent but will instead trigger a hoverMoveEvent (along with hoverEnterEvent and hoverLeaveEvent when you initially move the mouse over or off the QGraphicsItem respectively. So make sure you override this method in your subclass of QGraphicsItem .