I am trying to connect to the mouse-enter event of QGraphicsItems that are placed onto a QGraphicsScene and visualized through a QGraphicsView. From what I understand, the method to override for this is dragEnterEvent/hoverEnterEvent in a class derived from QGraphicsItem (or one of it's subclasses). My attempt looks like this:
Qt Code: 
  1. class StaPoly(QtGui.QGraphicsPolygonItem):
  2.  
  3.     def __init__(self,*args):
  4.         QtGui.QGraphicsPolygonItem.__init__(self,*args)
  5.         self.setAcceptDrops(True)
  6.         self.setAcceptHoverEvents(True)        
  7.         self.setEnabled(True)
  8.         self.setActive(True)        
  9.  
  10.     def mouseMoveEvent(self,event):
  11.         print "Enter!"        
  12.  
  13.     def hoverEnterEvent(self,event):
  14.         print "Enter!"         ...
  15.  
  16. ...
  17.  
  18.     def draw(self):        
  19.         p       = self.parent
  20.  
  21.         self.group = QtGui.QGraphicsItemGroup(scene=p.scene)
  22.  
  23. ...
  24.         for xpix in lons: 
  25.             poly = QtGui.QPolygonF()
  26.             poly << QtCore.QPointF(xpix-symw,ypix)
  27.             poly << QtCore.QPointF(xpix,ypix+symh)                
  28.             poly << QtCore.QPointF(xpix+symw,ypix)                
  29.             poly << QtCore.QPointF(xpix,ypix-symh)                                                
  30.  
  31.             item = StaPoly(poly)
  32.             item.setPen(QtGui.QColor(color))
  33.             item.setBrush(QtGui.QColor(color))  
  34.             self.group.addToGroup(item)
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I hope the above snippets make it clear what I am trying to do. Note that the display is generated exactly as I desire, no issue there - however the polygons that get drawn are not responding to the enter-event - I am not seeing any evidence that dragEnterEvent() is being called.

Note that I am also setting up the GraphicsView to receive events as-well like this, and these mouse move events *are* being received OK:

Qt Code: 
  1. class MyView(QtGui.QGraphicsView):
  2.  
  3.     def  __init__(self):
  4.         QtGui.QGraphicsView.__init__(self)
  5.         self.scene = QtGui.QGraphicsScene()
  6.         self.setScene(self.scene)                   
  7.         self.setMouseTracking(True)
  8.         self.setInteractive(False)       
  9.  
  10. ...
  11.  
  12.     def mouseMoveEvent(self,event):
  13.  
  14.         ...
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Any advice on how to make this work?