Re: GTK+ canvas?

[Rick L Vinyard Jr <rvinyard cs nmsu edu>]

Havoc Pennington wrote:
> e.g. the HippoCanvas I wrote in 3 days lacks some stuff (i.e. I didn't 
> bother to support events other than button press), but it's already more 
> useful than GnomeCanvas because it supports layout (width-for-height 
> layout even). I'm sure the other more serious existing implementations 
> have also surpassed GnomeCanvas already.
>
>   

Basing a canvas on cairo requires very little to surpass GnomeCanvas. 
For example, I put down some rough thoughts here:
    http://libpapyrus.sourceforge.net/gnomecanvasmm.php


I think perhaps my goals and the design of papyrus are a little 
different from the general discussion I've seen in this thread. In 
particular, my interest lies in diagrammatic reasoning, visual 
languages, and in particular rule-based visual languages.