Re: gtk tree view index of node

[Tim Müller <zen18864 zen co uk>]

On Saturday 19 June 2004 08:21, Marisa DeMeglio wrote:

> I'm looking for a way to get a flat index of any node in a gtk tree
> view.  For example, in the following structure:
>
> 1. Birds
>     1.1 colorful birds
> 2. Dogs
>     2.1 little dogs
>     2.2 big dogs
>
> item 2.2 would have a value of 5.
>
> I didn't see anything in the API .. does anyone know if such a function
> exists, or what would be a fast way to calculate this?

Maybe something along these lines:

gint
get_flat_idx (GtkTreeModel *model, GtkTreeIter *iter)
{
  GtkTreePath *path;
  gint                idx, *indices, depth, i;

  path = gtk_tree_model_get_path (model, iter);

  if (path == NULL)
    return -1

  depth = gtk_tree_path_get_depth (path);
  indices = gtk_tree_path_get_indices (path);

  idx = 0;
  for (i = 0;  i < depth;  ++i)
    idx += (indices[i] + 1);

  gtk_tree_path_free (path);
  
  return idx + 1;
}


Cheers
 -Tim