Re: [Chicken-users] cello? cross-platform gui toolkit

[Kon Lovett]

On Feb 7, 2007, at 10:43 AM, Joerg F. Wittenberger wrote:

> I'm afraid I'm sold.
>
> I just read about cells and http://common-lisp.net/project/cells-gtk/
> (haven't heard about it before).
>
> To me this looks like a usable way to write (G)UI's.

I think so too. At least the declarative + constraint satisfaction  
part. (You might want to look at Cassowary & The Scheme Constraints  
Window Manager - now moribund -
http://www.cs.washington.edu/research/constraints/cassowary & http:// 
scwm.sourceforge.net)

> So whatever the underlying toolkit will be (and how inclomplete the
> implementation to start with), I'd vote for something like this
> http://common-lisp.net/project/cells-gtk/cgtk-primer.html
> as the syntax and style, I shall edit.  Well, maybe we could drop a
> few of those "mk-" prefixes (as is "mk-vbox", "mk-radio-button" etc.).
>
>
> But probably I'm sold because I'm biased anyway.  Could someone please
> tell me, what the difference between cells, termite and askemos is?

Cells is a constraint propagation system for CLOS (spreadsheet-style  
programming). Termite is Erlang in Scheme. Askemos is a trusted/ 
reliable distributed computing framework. Only Termite & Askemos  
could be considered in a similar category.

> (except maybe for persistance or safety; from cell-doc.lisp, which I
> just have open):
>
>    take a system from time T to time T+1 smoothly
> versus
>    http://www.askemos.org/A849640f672ed0df0958abc0712110f3c/ 
> ProcessStep
>    http://www.askemos.org/A849640f672ed0df0958abc0712110f3c/AskemosDVM
> Looks just like different wording, to me.  Anything substancial I'm
> missing?

I am unsure of the question. ".../ProcessStep" is a glossary entry.  
".../AskemosDVM" is an abstract definition of the distributed virtual  
machine. Any state-oriented computation model "take a system from  
time T to time T+1 smoothly" but the devil is in the details,  
especially for concurrent systems.

> regards
>
> /Joerg
>
>
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