def mouseReleaseEvent(self, ev):
if ev.button() == QtCore.Qt.RightButton:
ev.accept()
self.dragStarted = False
self.sigReleased.emit(ev.pos())
else:
ImageItem.mouseMoveEvent(self, ev)
def mouseMoveEvent(self, ev):
if self.dragStarted:
self.sigDragged.emit(ev.pos())
ev.accept()
else:
ImageItem.mouseMoveEvent(self, ev)
