Python tkinter 问题在调整窗口大小时更改小部件的数量

Question

我正在编写一个显示小部件网格的程序。当窗口水平调整大小时，小部件调整大小，但是当窗口垂直调整大小时，我希望小部件的高度保持不变，但行数要改变。我对 frame.bind("", configure) 没有运气，窗口不会调整大小。 root.after(1000, rsz) 有效，但如果我使延迟更小，它不会。似乎应该有更好的方法来做到这一点。有什么建议吗？

import tkinter as tk
from tkinter import ttk
#def configure(event):
#    if not event.widget.master.master:
#        rsz()
root=tk.Tk()
root.geometry("500x500")
root.grid_columnconfigure(0, weight=1)
root.grid_rowconfigure(0, weight=1)
def rsz():
    global lasth
    h = root.winfo_height()
    if h != lasth:
        for widget in frame.winfo_children():
            widget.destroy()
        for row in range(int((h)/26)):
            frame.grid_rowconfigure(row, weight=0)
            for col in range(6):
                frame.grid_columnconfigure(col, weight=1)
                ttk.Button(frame, text='row{}, col{}'.format(row,col)).grid(row=row, column=col, sticky='EWNS')
        lasth = h
    root.after(1000, rsz)
frame=tk.Frame(root,padx=5,pady=5)
frame.grid(row=0,column=0, sticky="NSEW")
lasth = -1
rsz()
#frame.bind("<Configure>", configure)
root.mainloop()

Answer 1

rsz() 应该可以与 frame.bind('<Configure>') 一起正常工作：

import tkinter as tk
from tkinter import ttk

root=tk.Tk()
root.geometry("500x500")
root.grid_columnconfigure(0, weight=1)
root.grid_rowconfigure(0, weight=1)

lasth = -1

def rsz(event):
    global lasth
    #h = root.winfo_height()
    h = event.height
    if h != lasth:
        for widget in frame.winfo_children():
            widget.destroy()
        for row in range(h//26):
            frame.grid_rowconfigure(row, weight=1)
            for col in range(6):
                ttk.Button(frame, text='row{}, col{}'.format(row,col)).grid(row=row, column=col, sticky='nsew')
        lasth = h

frame=tk.Frame(root, padx=5, pady=5)
frame.grid(row=0, column=0, sticky="nsew")
# since number of columns does not change
# grid_columnconfigure() can be called once for each column
for col in range(6):
    frame.grid_columnconfigure(col, weight=1)
frame.bind("<Configure>", rsz)

root.mainloop()