Re: [PyGObject] Drag & Drop in a TreeView

[Colomban Wendling <lists ban herbesfolles org>]

Le 27/07/2018 à 23:05, c.buhtz--- via gtk-app-devel-list a écrit :
> Dear Reuben
>
> On 2018-07-23 08:03 Reuben Rissler <silrep emypeople net> wrote:
> > This is how I have done it in the past. Note, I do not proclaim 
> > spectacular or Pythonic code, and would humbly accept any corrections 
> > and/or better ways to accomplish this. It seems to me there should be
> > a way to let the TreeView do this work itself, but alas, I have not
> > found it yet.
>
> Your code works for me - thank you very much. But I also have the
> question if anyone here could improve it or show a more easier and
> elegant way.

If it's only for reordering the elements in the tree view, you can use
the built-in Gtk.TreeView.set_reorderable() method [1], and you're all
set.  You get inserted/deleted signals for moved rows so you can know
when and how things changed if needed, and the underlying model is also
changing accordingly.

Regards,
Colomban

[1]
https://developer.gnome.org/gtk3/stable/GtkTreeView.html#gtk-tree-view-set-reorderable