なぜ "wm_protocol"はPython3/tkinterの通常のウィンドウ管理を破りますか？

Question

私は幾分大きなPython 3.6プロジェクト用のtkinterウィンドウ管理をテストしていますが、私が正しくやっているとは思えない、あるいはかなりよく理解できるものがあります。次のコードでは、ウィンドウが開いて閉じられます（赤い 'x'ボタンをクリックするか、OS XのCommandキーを押しながら）。しかし、セカンダリウィンドウクロージングイベントのコールバックを広告しようとすると、状況が面倒になります。たとえば、複数のセカンダリウィンドウがある場合、キーボードショートカットやボタンがアクティブなウィンドウを閉じるとは限りません。何がここで間違っているかについての任意のアイデア？

#!/usr/bin/env python3.6 
# encoding: utf-8 

import tkinter as tk 
import tkinter.font 
from tkinter import ttk 


class baseApp(ttk.Frame): 
    """ 
    Parent classe for main app window (will include some aditional methods and properties). 
    """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 


class App(baseApp): 
    """ Base class for the main application window """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.lbl_text = ttk.Label(self.mainframe, text="This is the Main Window") 
     self.lbl_text.pack() 
     self.btn = ttk.Button(self.mainframe, text="Open Second window", 
           command=lambda: self.create_detail_window(self, number=0)) 
     self.btn.pack() 

    def create_detail_window(self, *event, number=None): 
     self.newDetailsWindow = tk.Toplevel(self.master) 
     self.newDetailsWindow.geometry('900x600+80+130') 
     self.newDetailsWindow.title(f'Detail: {number}') 
     self.newDetailsWindow.wm_protocol("WM_DELETE_WINDOW", lambda: self.close_detail_window()) # This line breaks window management!... 
     self.detail_window = detailWindow(self.newDetailsWindow, 0) 
     self.newDetailsWindow.focus() 

    def close_detail_window(self, *event): 
     """ will test for some condition before closing, save if necessary and 
      then call destroy() 
     """ 
     self.newDetailsWindow.destroy() # Shouldn't this be enough to close the secondary window?... 


class detailWindow(ttk.Frame): 
    """ Base class for secondary windows """ 
    def __init__(self, master, rep_num, *args,**kwargs): 
     super().__init__(master,*args,**kwargs) 
     self.num_rep = rep_num 
     self.master.minsize(900, 600) 
     self.master.maxsize(900, 600) 
     print(f"Showing details about nr. {self.num_rep}") 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 

     self.lbl_text = ttk.Label(self.mainframe, 
            text=f"Showing details about nr. {self.num_rep}") 
     self.lbl_text.pack() 


if __name__ == "__main__": 
    root = tk.Tk() 
    janela_principal = App(root) 
    root.title('Main Window') 
    root.bind_all("<Mod2-q>", exit) 
    root.mainloop() 

私がラインをデコメント時にウィンドウ管理が壊れますself.newDetailsWindow.wm_protocol("WM_DELETE_WINDOW", lambda: self.close_detail_window())ようだ：

は、ここに私の現在のテストコードです。行self.newDetailsWindow.destroy()は、二次ウィンドウを閉じるだけで十分ではありませんか？私はオブジェクトをインスタンス化している方法で間違ったことをしていますか？

Answer 1

コードをいくつか調整しました。今はうまくいくはずです。基本的に、あなたのメソッドapp.create_detail_windowは、あなたがそれを呼び出すたびに属性self.newDetailWindowを再割り当てしたので、「x」ボタンが間違ったウィンドウに送られます。私はあなたの場合には、コメントで述べたように、すべてのToplevel sのあなたは

#!/usr/bin/env python3.6 
# encoding: utf-8 

import tkinter as tk 
import tkinter.font 
from tkinter import ttk 


class baseApp(ttk.Frame): 
    """ 
    Parent classe for main app window (will include some aditional methods and properties). 
    """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 


class App(baseApp): 
    """ Base class for the main application window """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.lbl_text = ttk.Label(self.mainframe, text="This is the Main Window") 
     self.lbl_text.pack() 
     self.btn = ttk.Button(self.mainframe, text="Open Second window", 
           command=lambda: self.create_detail_window(self, number=0)) 
     self.btn.pack() 
     self.newDetailsWindow = {} 
     self.windows_count=0 

    def create_detail_window(self, *event, number=None): 
     self.windows_count+=1 
     self.newDetailsWindow[self.windows_count]=tk.Toplevel(self.master) 
     self.newDetailsWindow[self.windows_count].geometry('900x600+80+130') 
     self.newDetailsWindow[self.windows_count].title(f'Detail: {self.windows_count}') 

     self.newDetailsWindow[self.windows_count].wm_protocol("WM_DELETE_WINDOW", self.newDetailsWindow[self.windows_count].destroy) 
     #self.newDetailsWindow[self.windows_count].bind("Command-w", lambda event: self.newDetailsWindow[-1].destroy()) 

     self.detail_window = detailWindow(self.newDetailsWindow[self.windows_count], self.windows_count) 
     self.newDetailsWindow[self.windows_count].focus() 
     print(self.newDetailsWindow) 

    def close_detail_window(self, *event): 
     """ will test for some condition before closing, save if necessary and 
      then call destroy() 
     """ 
     pass 
     #self.newDetailsWindow.destroy() # Shouldn't this be enough to close the secondary window?... 


class detailWindow(ttk.Frame): 
    """ Base class for secondary windows """ 
    def __init__(self, master, rep_num, *args,**kwargs): 
     super().__init__(master,*args,**kwargs) 
     self.num_rep = rep_num 
     self.master.minsize(900, 600) 
     self.master.maxsize(900, 600) 
     print(f"Showing details about nr. {self.num_rep}") 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 

     self.lbl_text = ttk.Label(self.mainframe, 
            text=f"Showing details about nr. {self.num_rep}") 
     self.lbl_text.pack() 


if __name__ == "__main__": 
    root = tk.Tk() 
    janela_principal = App(root) 
    root.title('Main Window') 
    root.bind_all("<Mod2-q>", exit) 
    root.mainloop() 

Answer 2

新しいトップレベルのガベージに既存のトップレベルを収集するためにself.newDetailsWindowを使用するように見えます。私は、タプルベルのリストであるAppにリストクラス変数を追加しました。

class App(baseApp): 
    """ Base class for the main application window """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.lbl_text = ttk.Label(self.mainframe, text="This is the Main Window") 
     self.lbl_text.pack() 
     self.btn = ttk.Button(self.mainframe, text="Open Second window", 
          command=lambda: self.create_detail_window(self, number=0)) 
     self.btn.pack() 
     self.windows = [] #This is a list of the created windows instances. 

    def create_detail_window(self, *event, number=None): 
     newDetailsWindow = tk.Toplevel(self.master) 
     self.windows.append(newDetailsWindow) 

     newDetailsWindow.geometry('900x600+80+130') 
     newDetailsWindow.title(f'Detail: {number}') 
     newDetailsWindow.wm_protocol("WM_DELETE_WINDOW", lambda: 
     self.close_detail_window(newDetailsWindow)) # This line breaks window management!... 
     detail_window = detailWindow(newDetailsWindow, 0) 
     newDetailsWindow.focus() 


    def close_detail_window(self, window): 
     """ will test for some condition before closing, save if necessary and 
     then call destroy() 
     """ 
     self.windows.remove(window) 
     window.destroy() # destroy the specific instance in self.windows 

Answer 3

を作成し保存するためにdictを使用し、次のコードはまだ動作します。

import tkinter as tk 
import tkinter.font 
from tkinter import ttk 


class baseApp(ttk.Frame): 
    """ 
    Parent classe for main app window (will include some aditional methods and properties). 
    """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 


class App(baseApp): 
    """ Base class for the main application window """ 
    def __init__(self, master, *args, **kwargs): 
     super().__init__(master, *args, **kwargs) 
     self.master = master 
     self.lbl_text = ttk.Label(self.mainframe, text="This is the Main Window") 
     self.lbl_text.pack() 
     self.btn = ttk.Button(self.mainframe, text="Open Second window", 
           command=lambda: self.create_detail_window(self)) 
     self.btn.pack() 
     self.windows_count=0 

    def create_detail_window(self, *event): 
     self.windows_count+=1 
     newDetailsWindow=tk.Toplevel() 
     newDetailsWindow.geometry('900x600+80+130') 
     newDetailsWindow.title(f'Detail: {self.windows_count}') 
     newDetailsWindow.wm_protocol("WM_DELETE_WINDOW", newDetailsWindow.destroy) 
     self.detail_window = detailWindow(newDetailsWindow, self.windows_count) 
     newDetailsWindow.focus() 


class detailWindow(ttk.Frame): 
    """ Base class for secondary windows """ 
    def __init__(self, master, rep_num, *args,**kwargs): 
     super().__init__(master,*args,**kwargs) 
     self.num_rep = rep_num 
     self.master.minsize(900, 600) 
     self.master.maxsize(900, 600) 
     print(f"Showing details about nr. {self.num_rep}") 
     self.mainframe = ttk.Frame(master) 
     self.mainframe.pack() 

     self.lbl_text = ttk.Label(self.mainframe, 
            text=f"Showing details about nr. {self.num_rep}") 
     self.lbl_text.pack() 


if __name__ == "__main__": 
    root = tk.Tk() 
    janela_principal = App(root) 
    root.title('Main Window') 
    root.bind_all("<Mod2-q>", exit) 
    root.mainloop()