从图形按钮打开可执行文件而不关闭父级 window

Question

我使用 Zelle 的图形包创建了一个游戏 "dice poker"，并且在主屏幕上有一个按钮可以打开一个文本文件。单击按钮时文本文件打开，但主 window 关闭。我怎样才能让父级 window 保持打开状态？

按钮class在下方：

from graphics import *
from tkinter import Button as tkButton

class Button():

    """A button is a labeled rectangle in a window.
    It is activated or deactivated with the activate()
    and deactivate() methods. The clicked(p) method
    returns true if the button is active and p is inside it."""

    def __init__(self, win, center, width, height, label):
        """ Creates a rectangular button, eg:
        qb = Button(myWin, centerPoint, width, height, 'Quit') """

        w,h = width/2.0, height/2.0
        x,y = center.getX(), center.getY()
        self.xmax, self.xmin = x+w, x-w
        self.ymax, self.ymin = y+h, y-h
        p1 = Point(self.xmin, self.ymin)
        p2 = Point(self.xmax, self.ymax)
        self.rect = Rectangle(p1,p2)
        self.rect.setFill('lightgray')
        self.rect.draw(win)
        self.label = Text(center, label)
        self.label.draw(win)
        self.deactivate()

    def clicked(self, p):
        "Returns true if button active and p is inside"
        return (self.active and
                self.xmin <= p.getX() <= self.xmax and
                self.ymin <= p.getY() <= self.ymax)

    def getLabel(self):
        "Returns the label string of this button."
        return self.label.getText()

    def activate(self):
        "Sets this button to 'active'."
        self.label.setFill('black')
        self.rect.setWidth(2)
        self.active = True

    def deactivate(self):
        "Sets this button to 'inactive'."
        self.label.setFill('darkgrey')
        self.rect.setWidth(1)
        self.active = False

如何包含一个 command 参数，该参数可以以类似于此 tkinter 实现的方式打开可执行文件：

import Tkinter as tk

def create_window():
    window = tk.Toplevel(root)

root = tk.Tk()
b = tk.Button(root, text="Create new window", command=create_window)
b.pack()

root.mainloop()

哪里的命令可以subprocess.run(['open', '-t', 'poker_help.txt'])并且仍然保持原来的window打开？

Answer 1

我必须做出一些假设，因为您没有包含顶级代码（例如，您在 Mac 上）：

Zelle 图形与同样基于 tkinter 构建的 tkinter 和 turtle 不同，它没有明确的 win.mainloop() 调用来将控制权移交给 Tk 事件处理程序以空闲等待事件发生。相反，您必须自己将一个拼凑在一起，否则一旦您点击鼠标触发了您的按钮，程序就会从文件末尾掉落并且主要 window 关闭：

import subprocess
from graphics import *
from button import Button

win = GraphWin()

help_button = Button(win, Point(150, 150), 50, 50, "Help")
help_button.activate()

quit_button = Button(win, Point(50, 50), 50, 50, "Quit")
quit_button.activate()

while True:
    point = win.getMouse()

    if help_button.clicked(point):
        subprocess.call(['open', '-t', 'poker_help.txt'])
    elif quit_button.clicked(point):
        win.close()

其中 from button import Button 引入您上面的按钮代码。另一件要检查的事情是你的 window 实际上正在关闭，而不是简单地被上面打开的新 window 遮挡。

从图形按钮打开可执行文件而不关闭父级 window

Open executable file from graphics button without closing parent window

python

zelle-graphics