Python Frame.after方法代码示例

# 需要导入模块: from tkinter import Frame [as 别名]
# 或者: from tkinter.Frame import after [as 别名]
class App:
    def __init__(self, master):
        self.frame = Frame(master)
        self.frame.pack()

        self.var = StringVar()
        self.data_queue = Queue()

        self.button = Button(self.frame, text=self.var)
        self.button.pack(side=LEFT)

        # start the "fetch" thread (just generate data from the clock)
        self.stop_thread = False
        self.thread = Thread(target=self.get_data, args=("DATA thread", self.data_queue))
        self.thread.start()

        # when user clicks "close" widget, call self.stop_all()
        master.protocol("WM_DELETE_WINDOW", self.stop_all )

        self.frame.after(500, self.updater)

    def get_data(self, threadname, q):
        while not self.stop_thread:
            a = str(time.time())
            self.data_queue.put(a)
            print(f'get_data: put "{a}" to queue')
            time.sleep(3)

    def updater(self):
        while not self.data_queue.empty():
            var = self.data_queue.get()
            print(f'updater: got {var}')
        self.frame.after(500, self.updater)     # call again after 500ms

    def stop_all(self):
        """Catch the "window close event".

        We must kill the thread and then call normal quit() function.
        """

        self.stop_thread = True
        self.thread.join()      # wait for thread to stop
        self.frame.quit()       # call normal frame quit()

# 需要导入模块: from tkinter import Frame [as 别名]
# 或者: from tkinter.Frame import after [as 别名]
class TicTacToeGUI:

    ai = None

    def __init__(self, master):
        # Initial Frame
        self.frame = Frame(master)
        self.frame.pack(fill="both", expand=True)

        # Board canvas
        self.canvas = Canvas(self.frame, width=300, height=300)

        # Symbol selection buttons
        self.x_button = Button(self.frame, text='Play as X', height=4,
                               command=self.set_player_x, bg='white',
                               fg='black')
        self.o_button = Button(self.frame, text='Play as O', height=4,
                               command=self.set_player_o, bg='white',
                               fg='red')

        # Game start button and info box
        self.start_button = Button(self.frame, text="START", height=4,
                                   command=self.start, bg='white', fg='purple')
        self.info_box = Label(self.frame, text='Tic Tac Toe Game', height=4,
                              bg='white', fg='blue')

        self.clean_game_board()

    def start(self):
        """Sets up game board, starts a tic tac toe game,
        and a new AI if one doesn't exist. AI makes first move if
        playing as X
        """
        self.set_game_board()
        self.game = TicTacToe()
        self.game.start()
        if not self.ai:
            self.ai = TicTacToeAI()

        if self.ai_symbol == 'x':
            self.ai_action()

    def _board(self):
        """Draws tic tac toe board"""
        self.canvas.create_rectangle(0, 0, 300, 300, outline="black")
        self.canvas.create_rectangle(100, 300, 200, 0, outline="black")
        self.canvas.create_rectangle(0, 100, 300, 200, outline="black")

    def user_action(self, event):
        """Attempts to take action that matches user click. If the move is valid,
        then calls the AI to make the next move. If not, displays the error.
        """
        move_x = event.x // 100
        move_y = event.y // 100
        move_result = self.game.update(self.player_symbol, (move_x, move_y))
        if move_result == "Success":
            board_x = (200 * move_x + 100) / 2
            board_y = (200 * move_y + 100) / 2
            if self.player_symbol == 'x':
                self.draw_x(board_x, board_y)
            else:
                self.draw_o(board_x, board_y)
            if not self.completed():
                # Wait a bit before calling the ai, for visual style
                self.frame.after(500, self.ai_action)
        else:
            self.info_box['text'] = move_result

    def ai_action(self):
        """Gets the next move from the AI based on current game state,
        and plays.
        """
        state = self.game.get_board()
        move = self.ai.get_move(state)
        move_result = self.game.update(self.ai_symbol, move)
        if move_result == "Success":
            board_x = (200 * move[0] + 100) / 2
            board_y = (200 * move[1] + 100) / 2
            if self.ai_symbol == 'x':
                self.draw_x(board_x, board_y)
            else:
                self.draw_o(board_x, board_y)
            self.completed()

    def completed(self):
        """Checks the game status. If completed, displays the result,
        and asks whether the player would like to start another game.
        """
        status = self.game.done()
        if status == 'e':
            return False
        message = "Click to start a new game."
        if status == 't':
            message = "Tie game. " + message
        else:
            message = "Player " + status.upper() + " has won. " + message
        self.info_box.pack_forget()
        self.start_button.pack(fill="both", expand=True)
        self.start_button["text"] = message
        self.start_button["command"] = self.clean_game_board
#.........这里部分代码省略.........