title: Can I get mouse events in a QGraphicsItem?
body: <p>I have subclassed <code>QGraphicsRectItem</code>, and it's not receiving any mouse events. I've seen other questions similar to this say I need to enable mouse tracking, but <code>setMouseTracking</code> is in QWidget, and QGraphicsItem does not appear to be a QWidget.</p>
  
  <p>I've implemented <code>paint</code>, and that's working. In my subclassed QGraphicsView I am getting mouse events.</p>
  
  <p>The docs seem to think I should just override the mousePressEvent function (for example) and I should start getting the events. Whether I forward the mousePressEvent to the superclass of my QGraphicsView or not doesn't seem to make any difference.</p>