RE: How to get Position of GtkTreeIter?

[martyn 2 russell bt com]

> >  I'm searchig for a function like "gtk_list_view_get_position()"
> >  in cooperation with gtk tree selection mode (value that we'll
> >  get by calling gtk_tree_view_get_selection(); ). Is anybody
> >  here who knows about such possibility?
>
> If you want to know the index only to lookup your object in an array,
> then i suggest to simply add an additional data field of to your
> ListStore (just increase the first argument of 
> gtk_list_store_new() and
> add a G_TYPE_POINTER).
> When adding new rows you also need to pass the pointer to your object:
> gtk_list_store_set(model, &iter, [<some_fields>],
>                    x, &your_array[position]);

The problem with using this, is that if the item position changes (say the
one above is removed) then all below it would need updating in the
store/model.  This is HIGHLY inefficient and if there is a lot of data in
the store/model, then you descrease the speed at which you can do operations
unnecessarily (note: you need a LOT of data for this to be the case).

Regards,
Martyn