Re: [PyGObject] invisible paths between Gtk.TreeView.get_visible_range() ?

[Reuben Rissler <silrep emypeople net>]

On 02/14/2019 05:17 AM, c.buhtz--- via python-hackers-list wrote:
> Mystic...
> mytree.get_visible_range()
> returns always None no matter how much rows are in it.
>
> Why?
You need to run this method after the calculations are done. Example:



        GLib.idle_add(self.event_after )

    def event_after(self):
        print(self.treeview.get_visible_range())

> On 2019-02-14 10:21 "c.buhtz--- via python-hackers-list"
> <python-hackers-list gnome org> wrote:
> > The documentation about Gtk.TreeView.get_visible_range() says:
> >
> > "Returns the first and last visible path. Note that there may be
> > invisible paths in between."
> > <https://lazka.github.io/pgi-docs/#Gtk-3.0/classes/TreeView.html#Gtk.TreeView.get_visible_range>
> >
> > I have stomachache about the fact that there could be "invisible paths
> > in between". But the documentation here keeps mystic.
> > Why is it so? In which cases are there invisible paths?
> >
> > I need to prevent this situations.
> > _______________________________________________
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> > python-hackers-list gnome org
> > https://mail.gnome.org/mailman/listinfo/python-hackers-list
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