From: Morton Goldberg <m_goldberg@...>
Date: 2006-09-01T11:12:49+09:00
Subject: Re: TK help

I don't know why you say you can't unpack your button -- it's  
possible to both unpack and disable buttons, and then repack and re- 
enable them. Consider the following code:

<code>
require 'tk'

DEBUG = []

begin
    root = TkRoot.new {title 'Button Demo'}

    unpack_button = TkButton.new(root) {
       text 'Unpack Me'
       command {unpack_button.unpack}
    }
    unpack_button.pack

    disable_button = TkButton.new(root) {
       text 'Disable Me'
       command {disable_button.state = 'disable'}
    }
    disable_button.pack

    reset_button = TkButton.new(root) {
       text 'Reset'
       command {
          unpack_button.pack('before'=>disable_button)
          disable_button.state = 'normal'
       }
    }
    reset_button.pack

    # Set initial window geometry; i.e., size and placement.
    win_w, win_h = 200, 100
    # root.minsize(win_w, win_h)
    win_lf = (root.winfo_screenwidth - win_w) / 2
    root.geometry("#{win_w}x#{win_h}+#{win_lf}+50")

    # Make Cmnd+Q work as expected. This is for OS X.
    root.bind('Command-q') {Tk.root.destroy}

    Tk.mainloop
ensure
    puts DEBUG unless DEBUG.empty?
end
</code>

Regards, Morton

On Aug 31, 2006, at 8:43 PM, Mohammad --- wrote:

> Okay so I set up a greeting AI for my sceince projet, (cool right?)  
> but
> I got a problem: when he ask for a new key word I can't 'un-pack' the
> button so it's always there then if it happens again :), get ready for
> this, it does it again! My fault in the code, but I don't know what  
> else
> to do, so here's the code that I think needs the editing:
> submit = TkButton.new(text) {
>   image submitbutton
>   command {
>     aa = grem.how_are_you(text_awnser)
>     ga.configure("text"=>aa)
>     if aa.include?("I don't know what that means")
>       submit_helpg = TkButton.new(text){text "New positive keyword";
> command {add_word(new_word,"yes")}}.pack("side"=>"bottom")
>       submit_helpb = TkButton.new(text){text "New negative keyword";
> command {add_word(new_word,"no")}}.pack("side"=>"bottom")
>       helpme = TkEntry.new(text){ textvariable new_word
> }.pack("side"=>"bottom")
>     end
>   }
> }.pack