去掉选项菜单周围的白色边框

问题描述

我正在尝试去除 OptionMenu 周围的白色边框.

I'm trying to get rid of the white border around the OptionMenu.

我把颜色改成了红色，但周围还是有白边.

I changed the colour to red, but there is still a white border around it.

有人可以帮忙吗?

from tkinter import *
import tkinter as tk
from tkinter import ttk
root = tk.Tk()
root.geometry('500x500')
var = StringVar()
option = ttk.OptionMenu(root,var,'1','2','3')
option["menu"].config(bg="red")
option.pack()
root.mainloop()

另外，有没有办法改变OptionMenu 触发框(在红色圆圈中)的颜色?

Also, is there a way to change the colour of the OptionMenu trigger box (In the red Circle)?

推荐答案

如@Mike-SMT 的评论中所述，

As stated in the comments by @Mike-SMT,

您是否考虑过编写自己的选项菜单?

对我来说，这似乎是获得 OptionMenu 而没有令人讨厌的灰色边框的唯一方法.

This, to me, seems to be the only way to get an OptionMenu without having that irritating grey border.

这是我的尝试:

import tkinter as tk
root = tk.Tk()
root.geometry('500x500')

class custom_option_menu(tk.Tk):

    def down(self, *menu_items):
        if self.button["text"] == "↓":
            self.frame.place(x = self.x + (len(self.first) * 13)/2, y = self.y + 50, anchor = "center")
            self.button.config(text = "↑")

        elif self.button["text"] == "↑":
            self.frame.place_forget()
            self.button.config(text = "↓")

    def __init__(self, master, first, bg, *menu_items):

        self.master = master
        self.first = first
        self.menu_items = menu_items
        self.bg = bg
        self.frame = tk.Frame(master, height = 100, width = 100)
        self.otherframe = tk.Frame(master, height = 10, width = len(first) * 13)
        self.label = tk.Label(self.otherframe, text = str(first))
        self.button = tk.Button(self.otherframe, text = "↓", command = lambda: self.down(), relief= "flat")
        def save_var(event = "<Button-1>"):
            print(event.widget["text"])
        for i in range(len(self.menu_items)):
            self.frame.config(bg = self.bg)
            self.option = tk.Button(self.frame, text = self.menu_items[i], relief = "flat", bg = self.bg, textvariable = int(i))
            self.option.pack()
            self.option.bind("<Button-1>", save_var)





    def put(self, x, y):
        self.x = x
        self.y = y
        self.button.pack(side = "right")
        self.label.pack()
        self.frame.place(x = x + (len(self.first) * 13)/2, y = y + 50, anchor = "center")

        self.frame.place_forget()
        self.otherframe.place(x = x + (len(self.first) * 13)/2, y = y, anchor = "center")

nice = custom_option_menu(root, "o000000000000000", "blue", "First", "second", "Third")
nice.put(100, 200)
root.mainloop()

遗憾的是，我无法让默认几何管理器为此工作，所以我创建了 .put().这只是 x 和 y 坐标.

Sadly I couldn't get the default geometry managers to work for this, so I created .put(). It's just the x and y coordinates.

custom_option_menu 类的参数如下:

第一个参数是父小部件.

第二个参数是 OptionMenu 上的文本.

The second argument is the text on the OptionMenu.

第三个参数是选项的背景颜色.

剩下的参数是选项.

要打开菜单，请单击向下箭头.

To open the menu, click the down arrow.

希望这就是您要找的！

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