使 Toplevel window 在 root window 单击时弹出到顶部

Question

我有一个 UI 根目录 window，其中另外两个 Toplevel windows 通过单独的按钮点击创建。这些 Toplevel windows 锚定到根 window 并与根 window 一起沿着屏幕拖动。

我的问题是，如果我打开了另一个 window，而我的 UI 隐藏在它后面，如果我从任务栏或我能看到的小东西上单击我的 UI屏幕上，只有根 Tk window 弹出，另一个 Toplevel windows 仍然躲在另一个 window 后面。

我尝试了 toplevel.lift() 和 toplevel.wm_attributes("-topmost", 1)，但都没有给我想要的。

我如何绑定 Toplevel windows 以便如果它们打开并且我单击根 window Toplevel window 也会弹出到顶部？

Answer 1

这是一个简单的示例，它将打开 2 windows 并禁用根 window 上的所有内容，同时还绑定与该根 window 的任何交互以提升所有顶部 windows 在上面。

我还绑定了顶层关闭事件，首先删除根绑定，然后销毁顶层，然后重新启用根中的所有小部件 window。这应该成为您正在尝试做的事情的古老示例。

如果您有任何问题，请告诉我。

import tkinter as tk


class ExampleApp(tk.Frame):
    def __init__(self, master):
        tk.Frame.__init__(self, master)
        self.master = master
        self.master.geometry("400x150")
        self.main_frame = tk.Frame(self.master)
        self.main_frame.pack(expand=tk.YES, fill=tk.BOTH)
        self.master.protocol('<WM_LBUTTONDBLCLK>', self.motion)
        tk.Label(self.main_frame, text = "This is the main window").pack()
        tk.Button(self.main_frame, text = "Open 2 top level windows!", command = self.open_windows).pack()

    def motion(self, event):
        x, y = event.x, event.y
        print('{}, {}'.format(x, y))

    def open_windows(self):
        self.top1 = tk.Toplevel(self.master)
        self.top2 = tk.Toplevel(self.master)
        self.top1.geometry("100x100")
        self.top2.geometry("100x100")
        # ties the window close event to our customer close method for toplevel
        self.top1.protocol("WM_DELETE_WINDOW", self.close_toplevels)
        self.top2.protocol("WM_DELETE_WINDOW", self.close_toplevels)
        self.master.bind("<Unmap>", self.icon_all)
        self.top1.bind("<Unmap>", self.icon_all)
        self.top2.bind("<Unmap>", self.icon_all)
        self.master.bind("<Map>", self.de_icon_all)
        self.top1.bind("<Map>", self.de_icon_all)
        self.top2.bind("<Map>", self.de_icon_all)

        for child in self.main_frame.winfo_children():
            child.configure(state='disable')

        tk.Label(self.top1, text ="Topwindow 1").pack()
        tk.Label(self.top2, text ="Topwindow 2").pack()

        # sets the top windows to their initial locations
        self.lock_top_to_root()

        #keeps the top windows in the specified locations compared to root window
        self.master.bind("<Configure>", self.lock_top_to_root)

    def withdraw_tops(self, event=None):
        self.top1.withdraw()
        self.top2.withdraw()

    def de_icon_tops(self, event=None):
        self.top1.deiconify()
        self.top2.deiconify()

    def icon_all(self, event=None):
        self.withdraw_tops()
        self.master.iconify()

    def de_icon_all(self, event=None):
        self.de_icon_tops()
        self.master.deiconify()
        self.lock_top_to_root()

    def lock_top_to_root(self, event=None):
        self.top1.lift() # lift both toplevel windows about root
        self.top2.lift()
        # places each top level at each side
        # this is not set up to compensate for the root being resized but can be if you need it to.
        self.top1.geometry('+{}+{}'.format(self.master.winfo_x()+10, self.master.winfo_y()+30))
        self.top2.geometry('+{}+{}'.format(self.master.winfo_x()+275, self.master.winfo_y()+30))

    def close_toplevels(self):
        # customer close method to reset everything
        self.master.unbind('<Configure>')
        self.master.unbind("<Unmap>")
        self.master.unbind("<Map>")
        self.top1.destroy()
        self.top2.destroy()
        for child in self.main_frame.winfo_children():
            child.configure(state='active')

root = tk.Tk()
my_example = ExampleApp(root)
root.mainloop()

使 Toplevel window 在 root window 单击时弹出到顶部

Make Toplevel window pop up to the top when root window clicked

python

unix

tkinter

toplevel