是否可以在python的tkinter中為每個類保留相同的窗口？

Question

我正在嘗試在tkinter中創建一個程序，該程序允許我打開一個初始窗口，然后將其保留在所有使用的類中。 例如，如果我要在窗口中創建一個按鈕，那么當我單擊該按鈕時，它將執行一種方法來銷毀小部件，然后執行一個新類，該類在同一窗口內構建一個新屏幕，例如文本相對到一個按鈕。

from tkinter import *

class Window1:

    def __init__(self, master):
        self.master = master
        self.label = Button(self.master, text = "Example", command = self.load_new)
        self.label.pack()

    def load_new(self):
        self.label.destroy()
        ## Code to execute next class

class Window2:

    def __init__(self, master):
        self.master = master
        self.label = Label(self.master, text = "Example")
        self.label.pack()

def main():
    root = Tk()
    run = Window1(root)
    root.mainloop()

if __name__ == '__main__':
main()

我知道這不太實際，但我很好奇。 干杯。

Answer 1

Tk()創建主窗口，變量root使您可以訪問此窗口。 您可以將root用作Window2參數，並且可以訪問Window2內部的主窗口

from tkinter import *


class Window1:

    def __init__(self, master):

        # keep `root` in `self.master`
        self.master = master 

        self.label = Button(self.master, text="Example", command=self.load_new)
        self.label.pack()

    def load_new(self):
        self.label.destroy()

        # use `root` with another class
        self.another = Window2(self.master)


class Window2:

    def __init__(self, master):

        # keep `root` in `self.master`
        self.master = master

        self.label = Label(self.master, text="Example")
        self.label.pack()


root = Tk()
run = Window1(root)
root.mainloop()

-

可能沒有人使用另一個類代替Button創建Label ；）

-

編輯：在此示例中使用名稱Window1和Windows2是令人誤解的，因為只有一個窗口和兩個使用此窗口的類。 我寧願使用名字FirstOwner ， SecondOwner

Answer 2

一切都在一個Tk類中實現，在這種情況下，總是只有一個窗口。

from tkinter import *
from tkinter import ttk


class MainWindow():

    def __init__(self, mainWidget):
        self.main_frame = ttk.Frame(mainWidget, width=300, height=150, padding=(0, 0, 0, 0))
        self.main_frame.grid(row=0, column=0)

        self.some_kind_of_controler = 0

        self.main_gui()

    def main_gui(self):
        root.title('My Window')

        self.main_label_1 = ttk.Label(self.main_frame, text='Object_1')
        self.main_label_1.grid(row=0, column=0)

        self.main_label_2 = ttk.Label(self.main_frame, text='Object_2')
        self.main_label_2.grid(row=1, column=0)

        self.main_label_3 = ttk.Label(self.main_frame, text='Object_3')
        self.main_label_3.grid(row=2, column=0)

        self.setings_button = ttk.Button(self.main_frame, text='Setings')
        self.setings_button.grid(row=0, column=1)
        self.setings_button.bind('<Button-1>', self.setings_gui)

        self.gui_elements = [self.main_label_1,
                             self.main_label_2,
                             self.main_label_3,
                             self.setings_button]

    def setings_gui(self, event):
        self.gui_elements_remove(self.gui_elements)

        root.title('Setings')

        self.main_label_1 = ttk.Label(self.main_frame, text='Object_1')
        self.main_label_1.grid(row=2, column=0)

        self.main_menu_button = ttk.Button(self.main_frame, text='Main menu')
        self.main_menu_button.grid(row=0, column=1)
        self.main_menu_button.bind('<Button-1>', self.back_to_main)

        self.some_kind_of_controler = 1

        self.gui_elements = [self.main_label_1,
                             self.main_menu_button]

    def back_to_main(self, event):
        if self.some_kind_of_controler == 1:
            self.gui_elements_remove(self.gui_elements)
        else:
            pass
        self.main_gui()

    def gui_elements_remove(self, elements):
        for element in elements:
            element.destroy()

def main():
    global root

    root = Tk()
    root.geometry('300x150+50+50')
    window = MainWindow(root)

    root.mainloop()

if __name__ == '__main__':
    main()