Re: Choosing a parent class

[Andreas Kotowicz <kotoml mynetix de>]

On Tue, 2006-04-11 at 17:02 -0400, Tristan Van Berkom wrote:
> Andreas Kotowicz wrote:
> [...]
> > ok, I think I understand now. but somehow it seems that my class has
> > some mistake in it (see attachment). I'm calling it like this in my
> > code:
> >
> > ********
> > .
> > .
> > window->priv->object = app_calendar_new ();
> >
> > gtk_box_pack_end (GTK_BOX (main_box),
> >   GTK_WIDGET(window->priv->object),
> >   TRUE, 
> >   TRUE, 
> >   0);
> > .
> > .
> > ********
> >
> > all objects before and after this code get created and displayed
> > correctly, only my self made object refuses to show up.
>
> Is it visible ? i.e. did you call gtk_widget_show() on the calendar ?

sure (ok, I just realized that my attachments did get removed from my
last email). so here's the relevant code:

static void
app_calendar_class_init (AppCalendarClass *klass)
{

  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  
  g_type_class_add_private (object_class, sizeof(AppCalendarPrivate));
}

static void
app_calendar_init (AppCalendar *calendar)
{

  gint i;
  calendar->priv = APP_CALENDAR_GET_PRIVATE (calendar);


  /* some widgets to test with 
     the calender stuff will be inserted later on 
     not using calendar-> priv here yet as things don't work */

  GtkWidget *main_box, *hbox, *label;
  main_box = gtk_hbox_new (FALSE, 0);
  gtk_widget_show (main_box);

  hbox = gtk_hbox_new(TRUE, DEF_PAD);
  gtk_box_pack_start (GTK_BOX (main_box), hbox, TRUE, TRUE, 0);
  gtk_widget_show (hbox);

  label = gtk_label_new("text from AppCalendar");
  gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
  gtk_widget_show (label);

  g_message("called app_calendar_init");

}


GtkWidget *
app_calendar_new (void)
{
  return GTK_WIDGET (g_object_new (APP_TYPE_CALENDAR, NULL));
}



> Also, where are you doing that code ? from a constructor or an instance
> init func ?

instance init func:

 window->priv->object = app_calendar_new ();
 
 gtk_box_pack_end (GTK_BOX (main_box),
  GTK_WIDGET(window->priv->object),
  TRUE, 
  TRUE, 
   0);

/* this get's displayed correctly */

  GtkWidget *hbox, *label;
  hbox = gtk_hbox_new(TRUE, DEF_PAD);
  label = gtk_label_new("text from MainWindow");
  gtk_box_pack_end (GTK_BOX (main_box), label, TRUE, TRUE, 0);



ok, I hope these were all relevant parts. 

andreas