Tkinter GUI Python 中的調整按鈕大小

Question

我用 Tkinter 創建了一個簡單的 GUI 應用程序。

我對這段代碼有兩個問題：

import tkinter as tk
from tkinter import ttk, Grid, Frame, N, S, W, E, StringVar, Label, Entry, RAISED, Button, Checkbutton, Scrollbar

class mainApp(Frame):
    def __init__(self, parent):
        Frame.__init__(self, parent)
        self.parent = parent
        self.scan_button = Button(self.parent, text="Scan", command=self.scan_wifi)
        self.forget_button = Button(self.parent, text="Forget", command=self.forget_wifi)
        self.reboot_button = Button(self.parent, text="Reboot", command=self.reboot)
        frame=Frame(self.parent)
        Grid.rowconfigure(self.parent, 0, weight=1)
        Grid.columnconfigure(self.parent, 0, weight=1)
        frame.grid(row=0, column=0, sticky=N+S+E+W)
        grid=Frame(self.parent)
        grid.grid(sticky=N+S+E+W, column=0, row=7, columnspan=2)
        Grid.rowconfigure(self.parent, 7, weight=1)
        Grid.columnconfigure(self.parent, 0, weight=1)

        headings=('Name', 'Address', 'Quality', 'Channel', 'Signal Level', 'Encryption')
        row=[]
        rows=[]

        self.table = ttk.Treeview(show="headings", selectmode="browse")
        self.table["columns"]=headings
        self.table["displaycolumns"]=headings

        for head in headings:
            self.table.heading(head, text=head, anchor=tk.CENTER)
            self.table.column(head, width=30, anchor=tk.CENTER)

        self.scrolltable = tk.Scrollbar(command=self.table.yview)
        self.table.configure(yscrollcommand=self.scrolltable.set)
        self.scrolltable.grid(row=1, column=100, sticky=N+S)

        for row in rows:
            self.table.insert('', tk.END, values=tuple(row))

        self.table.bind('<ButtonRelease-1>', self.OnRelease)
        self.table.grid(row=0, rowspan=14, columnspan = 21, sticky=N+S+E+W)
        self.scan_button.grid(row=15, column = 1, columnspan = 1,   sticky=N+S+E+W)
        self.forget_button.grid(row=15, column = 0, columnspan = 1 , sticky=N+S+E+W)
        self.reboot_button.grid(row=15, column = 3, columnspan = 1 , sticky=N+S+E+W)

    def OnRelease(self, event):
        pass

    def scan_wifi(self):
        pass

    def forget_wifi(self):
        pass

    def reboot(self):
        pass

root=tk.Tk()

app = mainApp(root)
root.mainloop()

1) 如何移動窗口頂部的按鈕？

2）為什么，如果我調整窗口大小，“忘記”按鈕會變得比其他按鈕大？ 如何使所有按鈕的大小相同？

Answer 1

因為您只調用了columnconfigure(0, weight=1) ，因此在調整窗口大小時，只會調整Forget按鈕的大小。

要將按鈕移動到窗口頂部，您需要將按鈕重新排列為row=0並將Treeview重新排列為row=1 。 以下是基於您的修改后的代碼：

import tkinter as tk
from tkinter import ttk

class mainApp(tk.Frame):
    def __init__(self, parent):
        tk.Frame.__init__(self, parent)
        self.parent = parent
        # buttons
        self.forget_button = tk.Button(self.parent, text='Forget', command=self.forget_wifi)
        self.scan_button = tk.Button(self.parent, text='Scan', command=self.scan_wifi)
        self.reboot_button = tk.Button(self.parent, text='Reboot', command=self.reboot)

        self.forget_button.grid(row=0, column=0, sticky='nsew')
        self.scan_button.grid(row=0, column=1, sticky='nsew')
        self.reboot_button.grid(row=0, column=2, sticky='nsew')

        # make the 3 buttons same width
        for i in range(3):
          self.parent.columnconfigure(i, weight=1)
        # make the treeview and the scrollbar to fill the remaining space
        self.parent.rowconfigure(1, weight=1)

        # treeview and scrollbar
        frame = tk.Frame(self.parent)
        frame.grid(row=1, column=0, columnspan=3, sticky='nsew')

        headings=('Name', 'Address', 'Quality', 'Channel', 'Signal Level', 'Encryption')
        self.table = ttk.Treeview(frame, show='headings', selectmode='browse')
        self.table['columns'] = headings
        self.table['displaycolumns'] = headings

        for head in headings:
            self.table.heading(head, text=head, anchor=tk.CENTER)
            self.table.column(head, width=30, anchor=tk.CENTER)

        self.scrolltable = tk.Scrollbar(frame, command=self.table.yview)
        self.table.configure(yscrollcommand=self.scrolltable.set)

        self.table.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)
        self.scrolltable.pack(side=tk.RIGHT, fill=tk.Y)

        self.table.bind('<ButtonRelease-1>', self.OnRelease)

    def OnRelease(self, event):
        pass

    def scan_wifi(self):
        pass

    def forget_wifi(self):
        pass

    def reboot(self):
        pass

root=tk.Tk()
app = mainApp(root)
root.mainloop()