Re: GtkTreeRowReference and Drag-and-Drop

[Mitko Haralanov <voidtrance gmail com>]

It seems to me that this is something that a Gtk developer would have to
answer. However, it doesn't seem like this list is visited by any. The
participation on this list seems to be pretty low.

On Wed, Oct 24, 2018 at 9:49 AM Mitko Haralanov <voidtrance gmail com>
wrote:

> I've implemented a treeview in my application, which has drag-and-drop
> enabled to allow re-ordering of the rows. To support tree model updates
> while the user is performing dnd operations, I also have
> GtkTreeRowReferences for each row in the model (the model will not have too
> many rows).
>
> However, when I move a row during model update, the tree row reference for
> that row become invalid after the row-deleted signal handler is processed.
> What is strange is that, according to the documentation, it seem that this
> is exactly what GtkTreeRowReference is supposed to handle. Shouldn't the
> reference be updated to point to the new row? Why would the reference
> become invalid if I've *moved* the model row instead of deleted it? The row
> still exists just at a different place.
>
> Can someone please clarify this?
> Thank you