[plt-scheme] extending gui.ss

On Dec 31, 2005, at 1:14 PM, Prabhakar L Ragde wrote:

>> The gui.ss teachpack is by far the worst software I ever designed and
>> released. Mea culpa. It'll go away. -- Matthias
>
> I hope you mean that it will be redesigned, because it is in keeping 
> with
> your idea of attracting students by having them create small versions 
> of
> things that excite them about computers, and it serves me well at two
> points in my course: as a good use of functions as arguments (as done 
> in
> HtDP) and as a more "realistic" example of a good use of mutation (as 
> done
> by Matthew in his calculator examples). I think students would feel its
> loss.

Your uses are for what I designed and added gui.ss. I tested this at 
Rice.
The teachpack is too narrow, however, and the event stuff is just BAD. 
So
yes, some way of motivating these points will come back but in much
improved form.

> Matthew's suggestion, which should have been obvious to me, works just
> fine to fix my problem. Thanks to both of you. --PR

-- Matthias