def mousePressEvent(self, event):
if event.button() == QtCore.Qt.MouseButton.LeftButton:
start = PortItem().boundingRect().width()
end = self.boundingRect().width() - start
x_pos = event.pos().x()
if not start <= x_pos <= end:
event.ignore()
super(NodeItem, self).mousePressEvent(event)
def add_output(self, name='output', multi_port=False, display_name=True):
"""
Args:
name (str): name for the port.
multi_port (bool): allow multiple connections.
display_name (bool): display the port name.
Returns:
PortItem: output item widget
"""
port = PortItem(self)
port.name = name
port.port_type = OUT_PORT
port.multi_connection = multi_port
port.display_name = display_name
text = QGraphicsTextItem(port.name, self)
text.font().setPointSize(8)
text.setFont(text.font())
text.setVisible(display_name)
self._output_items[port] = text
if self.scene():
self.post_init()
return port