I have a class that inherits the QGraphicsItem and QObject. In the
mousePressEvent() function, it emits a signal. I want to connect this signal
with a function in the QGraphicsItem's QGraphicsScene. This is what I have:
class DisplayItem(QGraphicsItem, QObject):
def __init__(self):
QGraphicsItem.__init__(self)
QObject.__init__(self)
def mousePressEvent(self, event):
self.update()
self.emit(SIGNAL("updateItemSelected()"))
QGraphicsItem.mousePressEvent(self, event)
class DisplayScene(QGraphicsScene):
def __init__(self, parent):
QGraphicsScene.__init__(self, parent)
def DisplayChildren(self, item, graphViews, x, y):
dispItem = item.GetDisplayItem() #This returns a DisplayItem()
object
dispItem.setGraphView(graphViews[0])
dispItem.setPos(x, y)
self.connect(dispItem, SIGNAL("updateItemSelected()"),
self.ItemSelected)
self.addItem(dispItem)
When I run this and call the DisplayScene.DisplayChildren() function, I get
this error:
self.connect(dispItem, SIGNAL("updateItemSelected()"), self.ItemSelected)
SystemError: error return without exception set
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