How to color just some part of a frame in tkinter-CodePudding

A screen of what I want to do is better than explanations =>

No matter how big the frame is I want to know if I can choose the color for some part of the frame

EDIT : example of what I mean, I want the top to be in blue for example even though it's the same frame (if a "slicing" can be done like strings It would be good but I don't think it exist)

import tkinter as tk
from tkinter import CENTER, ttk
    
root = tk.Tk()
root.geometry('500x200')
frame = tk.Frame(root,width=100,height=100,bg='red')
frame.pack_propagate(0)
frame.pack()
label = tk.Label(frame,text='test',bg='red')
label.place(relx=0.5,rely=0.5,anchor=CENTER)

root.mainloop()

CodePudding user response：

To make a Frame two-colored, you need to put some other widget inside to create the color stripe, for instance, another Frame. Then, use place to put the second frame inside the first one, this way you can pack/grid/place other widgets in your first frame without being affected by the presence of the second one.

Here is an example where the height of the color stripe is a fraction of frame's height. The stripe automatically resizes with the frame thanks to the use of the relheight option in place().

import tkinter as tk

class TwoColoredFrame(tk.Frame):
    def __init__(self, master, bg1, bg2, fraction=0.5, **kw):
        kw["bg"] = bg2  # color of the lower part of the Frame
        tk.Frame.__init__(self, master, **kw)
        # upper color stripe 
        tk.Frame(self, bg=bg1).place(relx=0, rely=0, relwidth=1, relheight=fraction)  

root = tk.Tk()
root.geometry('500x200')
frame = TwoColoredFrame(root, width=100, height=100, bg2='red', bg1="blue", fraction=0.2)
frame.pack_propagate(0)
frame.pack(fill="both", expand=True)
label = tk.Label(frame, text='test', bg='red')
label.pack(side="bottom")

label = tk.Label(frame, text='test', bg='blue', fg="white")
label.pack(side="top")

root.mainloop()

If you would rather have a fixed height stripe, use instead the height option in place():

class TwoColoredFrame(tk.Frame):
    def __init__(self, master, bg1, bg2, top_height, **kw):
        kw["bg"] = bg2  # color of the lower part of the Frame
        tk.Frame.__init__(self, master, **kw)
        tk.Frame(self, bg=bg1).place(relx=0, rely=0, relwidth=1, height=top_height)  # upper color stripe