Re: Future of Canvas on GTK+ (and probably GNOME)

[Arjan Molenaar <arjanmolenaar hetnet nl>]

Jody Goldberg wrote:
> On Fri, Feb 11, 2005 at 03:21:49PM -0500, Havoc Pennington wrote:
>
> > On Thu, 2005-02-10 at 19:12 +0100, Jost Boekemeier wrote:
> >
> > > Since cairo can now be used by gtk apps, writing a gtk
> > > canvas shouldn't be difficult.  However, it would be
> > > good if someone could post the issues that the current
> > > gnome canvas has.  What should be in the gtk canvas,
> > > what not?
> >
> > An important question is what a canvas widget is for. In the GNOME 1.x
> > days, GnomeCanvas was used to implement a lot of custom widgets.
> > However, in GNOME 2.x that is very uncommon; because of accessibility
> > concerns and because GTK+ itself provides anti-flicker capabilities.
> >
> > So it would be interesting to map where the canvas is still used. I'd
> > assume gnome-games and nautilus for example.
>
>
> I agree with your notion of gtk1-canvas == custom widget.
> In gtk it seems most useful in the context of documents with
> embedded objects.
>     - dia
>     - gnumeric's drawing objects

      - DiaCanvas2

DiaCanvas is used for drawing diagram like things. It's main reason for using 
GnomeCanvas is the event-propagation. No gnome canvas shape widgets are used.

Regards,

Arjan

> Basicly a place where container based layout is inconvenient.
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