def destroy(self):
if self.textfields:
for tf in self.textfields:
tf.setEnabled(False)
self.textfields = None
Roi.removeRoiListener(self)
self.imp = None
def windowClosing(self, event):
answer = JOptionPane.showConfirmDialog(
event.getSource(), "Are you sure you want to close?",
"Confirm closing", JOptionPane.YES_NO_OPTION)
if JOptionPane.NO_OPTION == answer:
event.consume() # Prevent closing
else:
Roi.removeRoiListener(self.roilistener)
event.getSource().dispose() # close the JFrame
