Re: GtkTreeStore manipulation

[Tim Evans <t evans aranz com>]

Tristan Van Berkom wrote:
> On Wed, 17 Nov 2004 15:38:47 -0500, Tristan Van Berkom
> <tristan van berkom gmail com> wrote:
> [....]
>
> Ok guys, sorry for my ultra spam on the treeview subject.
>
> I finally have a fix that works for glade-3... the context is a GtkTreeStore
> which represents a widget hierarchy, so the problem was that I can not
> garauntee that parents get added to the tree before children, so when 
> parents finally get added, we have to adjust the tree.
>
> Right now, when a parent gets added to the tree, all the GtkTreeIter's that
> are "children" of that widget get removed and re-added to the project.
>
> While this solution is "sane" and "works", it still leaves me confused as to
> why I wouldn't be able to reparent heirarchies of GtkTreeIter objects in a 
> GtkTreeStore, I would expect that a file browser would come across the
> same situation when a "mv" of a directory occurs, should the file browser
> have to completely recreate the hierarchy of the treeview ?

It might be easier to write your own implementation of the GtkTreeModel 
interface than to use the general-purpose GtkTreeStore.  This may remove 
the need to maintain what amounts to two separate models, one in the 
GtkTreeStore and one in the widget hierachy that you are displaying. 
Instead, a custom tree-model implementation could get it's data directly 
from the widget hierachy.

If you want, I'll have a go at writing the custom tree model for you.

--
Tim Evans
Applied Research Associates NZ
http://www.aranz.com/