I'd like to allow the user to configure the appearance of the app (background color, font, font size and color, button color, etc). I've got all of the default settings saved into a config file, which the program interprets and saves into variables within a class for easy access between functions. Now, I can save the changes the user made into the config file and those changes will be reflected when the user closes and reopens the app, but I'd like the changes to be instantaneous, so I tried something like this:
import tkinter as tk
class SetColor:
def __init__(self, color):
self.color = 'green'
current = SetColor('green')
root = tk.Tk()
lbl_color = tk.Label(root, text='Choose button color')
lbl_color.grid(row=0, column=0, pady=5, padx=2)
btn_red = tk.Button(root, text='Red', bg=current.color, command=lambda:update_color('red'))
btn_red.grid(row=0, column=1, pady=5, padx=2)
btn_green = tk.Button(root, text='Green', bg=current.color, command=lambda:update_color('green'))
btn_green.grid(row=0, column=2, pady=5, padx=2)
btn_blue = tk.Button(root, text='Blue', bg=current.color, command=lambda:update_color('blue'))
btn_blue.grid(row=0, column=3, pady=5, padx=2)
def update_color(color):
current.color = color
#THIS is where I'm wondering if there's a way to refresh without individually updating each widget as I've done below
btn_red.config(bg=current.color)
btn_green.config(bg=current.color)
btn_blue.config(bg=current.color)
root.mainloop()
This does work, but in my actual app there are a loooooot more widgets that would need updating than in this^ example. So I have a feeling I'm missing something or going about this in the wrong way. Any help greatly appreciated :)
Your best bet is to store the buttons in a list and loop over that list. This way you can seperate different buttons. But if you are sure you want to change the color of every singlle button you can do: for widget in root.winfo_children():
if isinstance(widget, tk.Button):
widget.config(bg=current.color)