[racket] Spreadsheet editor

Nice work!

> I see two issues currently:
>
> * During editing, text snip creates a white plate that
>   extends outside the supposed borders of the snip.
>   See [1] for details.
>
> * Racket GUI does not provide scroll bars that one can
>   use independently from canvas or panel. I currently
>   use sliders instead of scroll bars, but with slider,
>   it is impossible to go up/down by exactly one point.
>   Also, it is not possible to update the limits of the
>   slider, so I have to re-create it when I add or remove
>   a row from the table.
>
> I would love to hear any comments regarding those issues,
> or any other issues, or anything that draws your
> attention in the source code.

The first issue is very apparent. I am

--
Jens Axel Søgaard