Re: Possible row selection interfering with Update

[Zettai Muri <zettaimuri ymail com>]

> Leave the view in multiple selection mode, and use this instead of get_selected():
>
>   @paths = $selection->get_selected_rows
>       Returns the Gtk2::TreePath of each selected row, or an empty list if no
>       rows are selected.  The model is not returned, as documented in the C
>       API reference.  To get the model, try
>       "$selection->get_tree_view->get_model".
>
> So your selection changed code would be
>
>    my @paths = $selection->get_selected_rows ();
>
>    if (@paths == 1) {
>        # exactly one selected, display it
>        display_row (...);
>
>    } else {
>        # either multiple rows selected, or nothing selected.
>        # clear the display.
>        undisplay (...);
>    }
>    # or you might want to allow modifying multiple elements
>    # at once, so you'd treat @path == 0 and @path > 1 differently
>
> and then the delete key handler would look like this (untested!):
>
>    my $model = $selection->get_tree_view->get_model;
>
>    foreach my $path (reverse $selection->get_selected_rows ()) {
>        $model->remove ($model->get_iter ($path));
>    }

Thank you so much for all your help on this! It works like a charm!

> > In update_line() I have done the following:
> >
> >    # Get selected line number
> >    my ($model, $iter) = $treeselection->get_selected;
> >    return unless $iter;
> >
> >    #my $model = $tv_items->get_model;
> >    #my $iter = $treeselection->get_selected;
> >
> > However, now no update occurs.  How should I be implementing this?
>
> Did you set the selection mode at initialization?

Yes, prior to changing the code to using the paths I had:
$treeselection->set_mode('single');

in my init().