Re: reordering GtkListStore items

["David M. Cook" <dave davidcook org>]

On Sat, Mar 20, 2004 at 01:03:08AM +0200, Paul Pogonyshev wrote:

> Is there an easy way to swap a given list store item with
> next/previous item?  I'm facing two problems: there appear
> to be no reordering functions in GTK+ 2.0 (all marked as
> "since 2.2") and there is gtk_tree_model_iter_next(), but
> no gtk_tree_mode_iter_previous().

In Python:

path = store.get_path(iter)
i = path[-1] # last index of path
parent = store.iter_parent(iter)
if i > 0:
   previous = store.iter_nth_child(parent, i-1)
else:
   previous = None
   
Or even simpler (though I don't know how to do the path aritmetic in C)

path = store.get_path(iter)
if path[-1] > 0:
  previous = store.get_iter(path[:-1] + (path[-1]+1,))
else:
  previous = None

Dave Cook