Re: gtk_tree_model_iter_previous()

[Bastien Nocera <hadess hadess net>]

On Wed, 2004-01-21 at 18:53, Owen Taylor wrote:
> On Wed, 2004-01-21 at 13:44, Murray Cumming Comneon com wrote:
> > As mentioned here:
> > http://bugzilla.gnome.org/show_bug.cgi?id=128058
> > 
> > It would be nice to have a gtk_tree_model_iter_previous() as well as the
> > current gtk_tree_model_iter_next(). Totem has an implementation, though I
> > guess it's significantly slower than gtk_tree_model_iter_next():
> > http://cvs.gnome.org/lxr/source/totem/src/totem-playlist.c#146
> > 
> > Thoughts?
> 
> <public service announcement>
> If we add one, Totem will get what it deserves... people - if you
> write utility functions, *DO NOT PUT THEM IN THE GTK+ NAMESPACE
> </public service announcement>

It's not exported anywhere, the only difference it could make is in
speed as the gtk+ version will have the internals handy.

> I've written that function before, and think it would be useful to
> have in GTK+. Would need a warning in the docs about performance. We
> could potentially add a vtable member to GtkTreeModel in the 
> future to allow models to accelerate it when possible with the model's
> data
> structures.
> 
> I've discussed this with Jonathan before, forget what his response
> was.
> 
> But post-2.4.

Good to see that it could get added :)

Cheers

---
Bastien Nocera <hadess hadess net> 
Show me a good loser and I'll show you a LOSER!