On Fri, 13 Jan 2006 19:45:07 +0100, John Maclean <info / jayeola.org> wrote:

>
> i) When asking a question is it best to paste the source code in  
> somewhere like http://rafb.net so that all can see?
> ii) Do people on this mailing list mind attachments containing code?

Most of the time, you should be able to go by with code excerpts under 40  
lines of code, you can as well put them into the mail body.

> ii) With regards to ruby-tcltk
>  a) The package has some demos under  
> /usr/share/doc/ruby-tcltk-1.8.4/tk/sample/demos-en
>  b) Looking at /usr/share/doc/ruby-tcltk-1.8.4/tk/sample/demos-en/widget  
> I'm finding it hard to see how to bind a button to "pop-up"  
> anotherwidget. (I think that the correct term is "Invoking" or  
> "binding").
>

Ech, I'm not that Tk savvy, but speaking from general GUI experience, what  
you're describing isn't really that common, and I'm not surprised the Tk  
samples don't feature it - use of dialogs, or just hiding / showing  
widgets is more common.

You should be able to add GUI widgets at runtime in event handlers just  
like you do when first creating the GUI, I'd first check if that works out  
of the box. If not, you probably need to tell Tk to redo the layout of  
widgets either in the root element, or if it's possible, just the one  
containing the new widgets. You really need someone Tk-savvy to tell you  
more.

David Vallner