Re: Making Glade created ComboBox behave like Gtk2::ComboBox->new_text?

["muppet" <scott asofyet org>]

Martin Junius said:
> Daniel Kasak wrote:
>
>> You mean the 'ComboBox' from Gtk-2.2? If so, that's been depreciated for
>> quite a while. What version of Gtk to do have? If you've got Gtk-2.4 or
>> higher, you should use a 'ComboBoxEntry'. It allows you to use a
>> Gtk2::ListStore ( as you're trying to do above ) to store values for
>> your combo box. I think that's what your problem here is - you're trying
>> to use an old ComboBox as a ComboBoxEntry.
>
> In my understanding, ComboBoxEntry is just a specialization of ComboBox,
> ie a CombBox plus user entry. OptionMenu is deprecated, but ComboBox?

I think he meant GtkCombo, which is the old, deprecated combo box widget.

ComboBox and ComboBoxEntry are the replacements for OptionMenu and Combo.


> Meanwhile, I found out that I have to add the following code (cbox is
> the widget from Glade):
>
>     my $model = new Gtk2::ListStore('Glib::String');
>     $cbox->clear();
>     my $renderer = new Gtk2::CellRendererText;
>     $cbox->pack_start($renderer, FALSE);
>     $cbox->set_attributes($renderer, text => 0);
>     $cbox->set_model($model);
>
> Is this the canonical way? The code was shamelessly copied from
> examples/combo_box.pl

That's how you set up a ComboBox by hand.  It also happens to be how
gtk_combo_box_new_text() sets up the widget.


> Then I can use
>
>     for ... {
> 	$cbox->append_text($label);
>     }

This works mostly by accident, because you set up your model the same way that
new_text() does.

append_text() merely does this (in C rather than perl, but):

   sub append_text {
      my ($combobox, $text) = @_;
      my $model = $combobox->get_model;
      $model->set ($model->append, 0, $text);
   }


-- 
muppet <scott at asofyet dot org>