python之获取 Tkinter 文本小部件中最后一个字符的位置

我不想要行和列，而是我想要屏幕上的实际坐标。我需要此信息，因为我想在用户输入的位置正下方放置一个 listbox。

请您参考如下方法:

文本光标处字符右下角的屏幕坐标可以通过获取该字符的边界框并将宽度和高度添加到坐标以获得相对于Text的坐标来确定。小部件，然后添加该小部件左上角的屏幕坐标:

#!/usr/bin/env python 
from __future__ import absolute_import, division, print_function 
import Tkinter as tk 
 
 
class MainFrame(tk.Frame): 
 
    def __init__(self, master): 
        tk.Frame.__init__(self, master) 
        self.text = tk.Text(self) 
        self.text.pack(side=tk.TOP) 
        tk.Button( 
            self, text='print coordinate', command=self.print_coordinate 
        ).pack(side=tk.TOP) 
 
    def print_coordinate(self): 
        """Calculate and print the lower right screen coordinate of the 
        character at the current text cursor position. 
        """ 
        character = self.text.get(tk.INSERT)  
        x, y, width, height = self.text.bbox(tk.INSERT) 
        #  
        # The line end has a width spanning the whole line until the right 
        # border of the text widget but it makes more sense to view it as 
        # having zero width in this context. 
        #  
        screen_x = x + (0 if character == u'\n' else width) + self.winfo_rootx() 
        screen_y = y + height + self.winfo_rooty() 
        print(screen_x, screen_y) 
 
 
def main(): 
    root = tk.Tk() 
    mainframe = MainFrame(root) 
    mainframe.pack() 
    root.mainloop() 
 
 
if __name__ == '__main__': 
    main()