class MainApp():
def __init__(self):
self.__master = MainView(tap_number_handler = self.__did_number_tapped, tap_operator_handler = self.__did_operator_tapped)
self.__display_text = "0"
self.__display_number = 0
self.__is_typing_number = True
self.__master.display(self.__display_text)
def run(self):
self.__master.mainloop()
def __did_number_tapped(self, number):
if self.__is_typing_number:
self.__display_text = number.value if self.__display_text == Number.ZERO.value else self.__display_text + number.value
else:
self.__display_number = float(self.__display_text)
self.__display_text = number.value
self.__is_typing_number = True
self.__update_diplay()
def __did_operator_tapped(self, operator):
if operator == UnaryOperator.DOT:
self.__add_dot()
else:
self.__is_typing_number = False
def __update_diplay(self):
self.__master.display(self.__display_text)
def __add_dot(self):
if UnaryOperator.DOT.value in self.__display_text:
return
self.__display_text += UnaryOperator.DOT.value
self.__update_diplay()
class MainApp():
def __init__(self):
self.__master = MainView(
tap_number_handler=self.__did_number_tapped,
tap_operator_handler=self.__did_operator_tapped)
self.__brain = CalculatorBrain(
update_handler=self.__result_was_updated)
self.__display_text = "0"
self.__display_number = 0
self.__is_typing_number = True
self.__master.display(self.__display_text)
def run(self):
self.__master.mainloop()
def __did_number_tapped(self, number):
if self.__is_typing_number:
self.__display_text = number.value if self.__display_text == Number.ZERO.value else self.__display_text + number.value
else:
self.__display_text = number.value
self.__is_typing_number = True
self.__update_diplay()
def __did_operator_tapped(self, operator):
if operator == UnaryOperator.DOT:
self.__add_dot()
else:
self.__is_typing_number = False
if operator == UnaryOperator.EQUAL:
self.__stack_number()
self.__brain.perform_pending_operation()
elif isinstance(operator, BinaryOperator):
self.__brain.perform_pending_operation()
self.__stack_number()
self.__brain.add_pending_operation(operator)
elif isinstance(operator, UnaryOperator):
self.__stack_number()
self.__brain.perform_uniary_operation(operator)
def __update_diplay(self):
self.__master.display(self.__display_text)
def __add_dot(self):
if UnaryOperator.DOT.value in self.__display_text:
return
if self.__is_typing_number:
self.__display_text += UnaryOperator.DOT.value
else:
self.__display_text = Number.ZERO.value + UnaryOperator.DOT.value
self.__is_typing_number = True
self.__update_diplay()
def __result_was_updated(self):
text_value = str(self.__brain.result)
self.__display_text = text_value
self.__update_diplay()
def __stack_number(self):
caster = float if UnaryOperator.DOT.value in self.__display_text else int
self.__display_number = caster(self.__display_text)
self.__brain.stack_number(self.__display_number)
