[Tkinter] ListBox not contained or scrollable

[wuf]

Hi kellykimble

The purpose of a listbox widget is to display a set of lines of text not Widgets. But you would like to display a pair of Labels per line representing colors. For this you can't use the listbox-widget. One way is to put a frame containing all color labels in a canvas. Then it is possible to scroll the frame in the canvas. Look at the following skript:

from tkinter import *

def canvas_update(event):
    canvas = event.widget
    canvas.config(scrollregion=canvas.bbox('all'))
     
def main () :
 
    window = Tk()
    window.title("Colors")
 
    #screen_width = window.winfo_screenwidth()
    #screen_height = window.winfo_screenheight()
    #window.geometry(str(screen_width)+"x"+str(screen_height)) 
     
    main_frame = Frame(window, relief='groove', bd=2) 
    main_frame.pack(expand=True, anchor='nw', padx=10, pady=10)
    
    canvas = Canvas(main_frame, width=200, height=400, highlightthickness=0)
    canvas.pack(side='left', expand=True)
    canvas.bind('<Configure>', canvas_update)

    scrollbar = Scrollbar(main_frame, orient="vertical")
    scrollbar.pack(side='left', fill='y')
    
    canvas.config(yscrollcommand=scrollbar.set)
    scrollbar.config(command=canvas.yview)

    color_frame = Frame(canvas)
    canvas.create_window(0, 0, anchor='nw', window=color_frame)

    #myframe.grid_propagate(0) 
    # Simulate the color ranges:
    r1 = 250
    g1 = 0
    b1 = 0
    r2 = 0
    g2 = 0
    b2 = 0
 
    for ii in range(25):
        r1 -= 10
        g1 += 5
 
        mycolor = '#%02x%02x%02x' % (r1, g1, b1)
        mycolor2 = '#%02x%02x%02x' % (b2, g2, r2)
        
        list_frame = Frame(color_frame, relief='sunken')
        list_frame.pack(fill='x')
 
        Label(list_frame, text=str(ii), bg=mycolor, fg='black', width=12,
            height=4).pack(side='left')
        Label(list_frame, text=str(ii), bg=mycolor2, fg='black', width=12,
            height=4).pack(side='left')
        
    window.mainloop()

if __name__ == '__main__':
    main()

Greetings wuf