[gtkada] gtk.list

[Stephen Leake]

I just figured out how to use a gtk list, and I have a suggestion.

In gtk-list.ads, we have:

   procedure Append_Items
     (List  : access Gtk_List_Record;
      Items : in Widget_List.Glist);

Since comments elsewhere in the spec talk about a list item being a
"plain label", I assumed that meant I could put a Gtk_Label on the
list:

declare
   use Gtk.Widget.Widget_List;
   Index_Widget_List : Glist;
   List_Item         : Gtk.Lable.Gtk_Label;
begin
   Gtk.Label.Gtk_New (List_Item, "Name");
   Append (Index_Widget_List, Gtk.Widget.Gtk_Widget (List_Item));
   Gtk.Label.Gtk_New (List_Item, "ID");
   Append (Index_Widget_List, Gtk.Widget.Gtk_Widget (List_Item));
   Gtk.List.Append_Items (Author_List.Index_List, Index_Widget_List);
end;

Howevever, this is wrong. The items on the list have to be
Gtk_List_Items:

declare
   use Gtk.Widget.Widget_List;
   Index_Widget_List : Glist;
   List_Item         : Gtk.List_Item.Gtk_List_Item;
begin
   Gtk.List_Item.Gtk_New (List_Item, "Name");
   Append (Index_Widget_List, Gtk.Widget.Gtk_Widget (List_Item));
   Gtk.List_Item.Gtk_New (List_Item, "ID");
   Append (Index_Widget_List, Gtk.Widget.Gtk_Widget (List_Item));
   Gtk.List.Append_Items (Author_List.Index_List, Index_Widget_List);
end;

So my suggestion is, can we change the Items parameter of
Gtk.List.Append_Items (and the other similar subprograms) to be a
List_Item_List, rather than a Widget_List? That would make this much
clearer. At the very least, there should be a comment at Append_Items
saying:

--  Items must be a list of Gtk.List_Items.Gtk_List_Item.


-- 
-- Stephe