def __init__(self, *args, **kwargs):
Tk.__init__(self, *args, **kwargs)
self.automaton = Automaton()
self.action = AutomatonAction.No_Action
self.transitions = []
self.quit_dialog = None
# create a canvas
self.canvas = Canvas(bg="white", width=640, height=480)
self.canvas.pack(fill="both", expand=True)
self._drag_data = {"x": 0, "y": 0, "item": None}
self.init_menu()
def new_automaton(self):
self.automaton = Automaton()
self.canvas.delete("all")
