Tkinter Text Widget Background Color

Terry Reedy tjreedy at udel.edu
Tue Feb 22 17:48:39 CET 2011


On 2/22/2011 6:50 AM, Peter Otten wrote:
> import Tkinter as tk
> from itertools import cycle
>
> root = tk.Tk()
> text = tk.Text(root, font=("Helvetica", 70))
> text.pack()
>
> text.insert(tk.END, "Hello, geocities")
> text.tag_add("initial", "1.0", "1.1")
> text.tag_add("initial", "1.7", "1.8")
>
> colors = cycle("red yellow blue".split())
> initial_colors = cycle("#8f8 #f08".split())
>
> def switch_color():
>      # change the complete widget's background color
>      text["bg"] = next(colors)
>
>      # change the background color of tagged portions
>      # of the widget's conten
>      text.tag_config("initial", background=next(initial_colors))
>
>      # do it again after 300 milliseconds
>      root.after(300, switch_color)
>
> # call the color-setting function manually the first time
> switch_color()
> root.mainloop()

This example is helpful to me. I am curious though why the tk window 
takes up the full screen instead of being much smaller as usual for 
other examples I run. Shortening or shrinking the text has no effect.


-- 
Terry Jan Reedy




More information about the Python-list mailing list