Пример #1
0
static void
gail_spin_button_real_initialize (AtkObject *obj,
                                  gpointer  data)
{
  GtkAdjustment *adjustment;
  GailSpinButton *spin_button = GAIL_SPIN_BUTTON (obj);
  GtkSpinButton *gtk_spin_button;

  ATK_OBJECT_CLASS (gail_spin_button_parent_class)->initialize (obj, data);

  gtk_spin_button = GTK_SPIN_BUTTON (data); 
  /*
   * If a GtkAdjustment already exists for the spin_button, 
   * create the GailAdjustment
   */
  adjustment = gtk_spin_button_get_adjustment (gtk_spin_button);
  if (adjustment)
    {
      spin_button->adjustment = gail_adjustment_new (adjustment);
      g_signal_connect (adjustment,
                        "value-changed",
                        G_CALLBACK (gail_spin_button_value_changed),
                        obj);
    }
  else
    spin_button->adjustment = NULL;

  obj->role = ATK_ROLE_SPIN_BUTTON;

}
Пример #2
0
static void
gail_spin_button_real_notify_gtk (GObject    *obj,
                                  GParamSpec *pspec)
{
  GtkWidget *widget = GTK_WIDGET (obj);
  GailSpinButton *spin_button = GAIL_SPIN_BUTTON (gtk_widget_get_accessible (widget));

  if (strcmp (pspec->name, "adjustment") == 0)
    {
      /*
       * Get rid of the GailAdjustment for the GtkAdjustment
       * which was associated with the spin_button.
       */
      GtkSpinButton* gtk_spin_button;

      if (spin_button->adjustment)
        {
          g_object_unref (spin_button->adjustment);
          spin_button->adjustment = NULL;
        }
      /*
       * Create the GailAdjustment when notify for "adjustment" property
       * is received
       */
      gtk_spin_button = GTK_SPIN_BUTTON (widget);
      spin_button->adjustment = gail_adjustment_new (gtk_spin_button->adjustment);
      g_signal_connect (gtk_spin_button->adjustment,
                        "value-changed",
                        G_CALLBACK (gail_spin_button_value_changed),
                        spin_button);
    }
  else
    GAIL_WIDGET_CLASS (gail_spin_button_parent_class)->notify_gtk (obj, pspec);
}