class StackViewModel:
def __init__(self, size=None):
self.push_button_enabled = 'disabled'
self.pop_button_enabled = 'disabled'
self.size_button_enabled = 'disabled'
self.stack = Stack(size)
self.input_value = None
self.input_size = None
self.pop_result = None
self.error = None
def validate_size(self):
if isinstance(self.input_size, int) and self.input_size > 0:
self.set_size_button_enabled()
return True
else:
self.set_size_button_disabled()
return False
def validate_input(self):
if isinstance(self.input_value, int) or isinstance(self.input_value, float):
self.set_input_button_enabled()
return True
else:
self.set_input_button_disabled()
return False
def set_input_button_enabled(self):
self.push_button_enabled = 'normal'
def set_input_button_disabled(self):
self.push_button_enabled = 'disabled'
def set_output_button_enabled(self):
self.pop_button_enabled = 'normal'
def set_output_button_disabled(self):
self.pop_button_enabled = 'disabled'
def set_size_button_enabled(self):
self.size_button_enabled = 'normal'
def set_size_button_disabled(self):
self.size_button_enabled = 'disabled'
def input_click(self):
if self.is_input_button_enable() == 'normal' and self.validate_input():
try:
self.clear_pop_result()
self.clear_error()
self.stack.push(self.input_value)
self.set_output_button_enabled()
if self.stack.isFull():
self.set_input_button_disabled()
self.error = 'Стэк переполнен'
except:
self.error = 'Ошибка добавления числа'
else:
self.error = 'Введение данные неверного типа'
def output_click(self):
if self.is_output_button_enable() and not self.stack.is_empty():
try:
self.clear_error()
self.pop_result = self.stack.pop()
if self.stack.is_empty():
self.set_output_button_disabled()
self.error = 'Стэк пуст'
except:
self.error = 'Ошибка получения значения'
else:
self.error = 'Стэк пуст'
def size_click(self):
if self.is_size_button_enable() and self.validate_size():
try:
self.stack.set_size(self.input_size)
except:
self.error = 'Ошибка изменения размера стека'
def set_input_value(self, value):
try:
self.input_value = int(value)
except:
try:
self.input_value = float(value)
except:
self.input_value = value
self.validate_input()
def get_input_value(self):
return self.input_value
def get_pop_result(self):
return self.pop_result
def clear_pop_result(self):
self.pop_result = None
def is_input_button_enable(self):
return self.push_button_enabled
def is_output_button_enable(self):
return self.pop_button_enabled
def is_size_button_enable(self):
return self.size_button_enabled
def get_stack_size(self):
return self.stack.get_stack_size()
def set_size_value(self, size):
try:
self.input_size = int(size)
except:
self.input_size = size
self.validate_size()
def set_stack_size(self, size):
self.stack.set_size(size)
def get_stack_values(self):
return self.stack.get_stack()
def clear_error(self):
self.error = None
def get_error(self):
return self.error
class StackViewModel:
def __init__(self, size=None, logger=RealLogger()):
self.push_button_enabled = 'disabled'
self.pop_button_enabled = 'disabled'
self.size_button_enabled = 'disabled'
self.stack = Stack(size)
self.input_value = None
self.input_size = None
self.pop_result = None
self.error = None
self.logger = logger
self.logger.log('Program started')
def validate_size(self):
if isinstance(self.input_size, int) and self.input_size > 0:
self.set_size_button_enabled()
return True
else:
self.set_size_button_disabled()
return False
def validate_input(self):
if isinstance(self.input_value, int) or isinstance(
self.input_value, float):
self.set_input_button_enabled()
return True
else:
self.set_input_button_disabled()
return False
def set_input_button_enabled(self):
self.push_button_enabled = 'normal'
def set_input_button_disabled(self):
self.push_button_enabled = 'disabled'
def set_output_button_enabled(self):
self.pop_button_enabled = 'normal'
def set_output_button_disabled(self):
self.pop_button_enabled = 'disabled'
def set_size_button_enabled(self):
self.size_button_enabled = 'normal'
def set_size_button_disabled(self):
self.size_button_enabled = 'disabled'
def input_click(self):
if self.is_input_button_enable() == 'normal' and self.validate_input():
try:
self.clear_pop_result()
self.clear_error()
self.stack.push(self.input_value)
self.logger.log('Число %s добавлено в стек' % self.input_value)
self.set_output_button_enabled()
if self.stack.is_full():
self.set_input_button_disabled()
self.error = 'Стэк переполнен'
self.logger.log(self.error)
except:
self.error = 'Ошибка добавления числа'
self.logger.log(self.error)
else:
self.error = 'Введение данных неверного типа'
self.logger.log(self.error)
def output_click(self):
if self.is_output_button_enable() and not self.stack.is_empty():
try:
self.clear_error()
self.pop_result = self.stack.pop()
self.logger.log('Получено число %s' % self.pop_result)
if self.stack.is_empty():
self.set_output_button_disabled()
self.error = 'Стэк пуст'
self.logger.log(self.error)
except:
self.error = 'Ошибка получения значения'
self.logger.log(self.error)
else:
self.error = 'Стэк пуст'
self.logger.log('Стэк пуст')
def size_click(self):
if self.is_size_button_enable() and self.validate_size():
try:
self.stack.set_size(self.input_size)
self.logger.log('Размер стека изменен на %s' %
self.input_size)
except:
self.error = 'Ошибка изменения размера стека'
self.logger.log(self.error)
else:
self.error = 'Неверный тип для размера стека'
self.logger.log(self.error)
def set_input_value(self, value):
try:
self.input_value = int(value)
except:
try:
self.input_value = float(value)
except:
self.input_value = value
self.validate_input()
def get_input_value(self):
return self.input_value
def get_pop_result(self):
return self.pop_result
def clear_pop_result(self):
self.pop_result = None
def is_input_button_enable(self):
return self.push_button_enabled
def is_output_button_enable(self):
return self.pop_button_enabled
def is_size_button_enable(self):
return self.size_button_enabled
def get_stack_size(self):
return self.stack.get_stack_size()
def set_size_value(self, size):
try:
self.input_size = int(size)
except:
self.input_size = size
self.validate_size()
def set_stack_size(self, size):
self.stack.set_size(size)
def get_stack_values(self):
return self.stack.get_stack()
def get_log_messages(self):
return self.logger.get_log_messages()
def clear_error(self):
self.error = None
def get_error(self):
return self.error