Re: custom TreeModel

hello gtkmm,
so how do I continue with this? I feel that it would be really handy to
add an example such as the one below to the gtkmm demos subdir. 
I was struggling with this myself some years ago for a gtk2 program
where the data were already established (and constantly changing)
outside the gui in a separate structure.
Copying the data into the treeview model, as the existing demo programs
do, is obviously not the ideal solution.
the other example in gtkmm-documentation keeps is very helpful, but it
does not show subdirs...
regards, Danny.
On Mon, Dec 16, 2019 at 2:10 PM danny via gtkmm-list <gtkmm-list@gnome.
org> wrote:
> hi
> 
> well, actually, I did not find the example you are referring to. I
> probably did when I was working with the original gtk2 program,
> though.
> 
> so I have come up with this:
> (gtkmm-3.22.3/demos)
> 
> --------------------------------------------------------------
> /* Tree View/Tree Store
>  *
>  * The GtkTreeStore is used to store data in tree form, to be
>  * used later on by a GtkTreeView to display it. This demo builds
>  * a simple list of nodes in memory and displays it in the
> GtkTreeStore. 
>  *
>  */
> 
> ...
> --------------------------------------------------------------
> 
> I'm not sure, though, if I really understand the purpose of 
> virtual bool Gtk::TreeModel::iter_parent_vfunc 
>           (
>           
> this function finds a parent for the given child, right? but why
> would that be needed, if a child can only be arrived at from a parent
> node in the first place?
> 
> regards, Danny.
>

_______________________________________________
gtkmm-list mailing list
[email protected]
https://mail.gnome.org/mailman/listinfo/gtkmm-list