Re: gtkentry subclass

["Padraig O'Briain" <Padraig Obriain Sun COM>]

Adrain,

I wanted to do a similar thing in gail.

I have a GailWidget class which implements AtkComponent interface and a  
GailWindow class which derives from GailWidget. I wanted to provide a different 
implementation in GailWindow for a couple of AtkComponent methods. 

Hopefully, the code in gail/gail/gailwindow.c will show you how I did it.

Padraig

> 
> I'm trying to create a gtkentry subclass that would allow to justify the
> text (left/right--for numbers/centered). Everything would be much easier
> if I could just simply overload the "adjust_scroll" function (if it were
> part of the class methods). Instead, I have to practivally copy all the
> gtkentry code and overload the gtkeditable interface. However I don't
> understand the new strategy of adding interfaces:
> 
>       static const GInterfaceInfo editable_info =
>        {
>          (GInterfaceInitFunc) gtk_entry_editable_init,    /*
> interface_init */
>          NULL,                                            /*
> interface_finalize */
>          NULL                                             /*
> interface_data */
>        };
>  
>        g_type_add_interface_static (entry_type,
>                                     GTK_TYPE_EDITABLE,
>                                     &editable_info);
> 
> I want to overload the methods:
> 
>  static void
>  gtk_entry_editable_init (GtkEditableClass *iface)
>  {
>    iface->do_insert_text = gtk_entry_insert_text; 
>    iface->do_delete_text = gtk_entry_delete_text;
>    iface->insert_text = gtk_entry_real_insert_text;
>    iface->delete_text = gtk_entry_real_delete_text;
>    iface->get_chars = gtk_entry_get_chars;
>    iface->set_selection_bounds = gtk_entry_set_selection_bounds;
>    iface->get_selection_bounds = gtk_entry_get_selection_bounds;
>    iface->set_position = gtk_entry_real_set_position;
>    iface->get_position = gtk_entry_get_position;
>  }
> 
> When I just copy and paste (and rename) the code from gtkentry, it keeps
> calling the original gtkentry functions before calling the new ones. Any
> hits? Thanks a lot!
> <ADRIAN>
> 
> _______________________________________________
> gtk-devel-list mailing list
> gtk-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-devel-list