+
+
+\f
+
+GType
+psppire_window_model_get_type (void)
+{
+ static GType window_model_type = 0;
+
+ if (! window_model_type)
+ {
+ static const GTypeInfo window_model_info =
+ {
+ sizeof (PsppireWindowIface), /* class_size */
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ NULL,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ 0,
+ 0, /* n_preallocs */
+ NULL
+ };
+
+ window_model_type =
+ g_type_register_static (G_TYPE_INTERFACE, "PsppireWindowModel",
+ &window_model_info, 0);
+
+ g_type_interface_add_prerequisite (window_model_type, G_TYPE_OBJECT);
+ }
+
+ return window_model_type;
+}
+
+
+void
+psppire_window_save (PsppireWindow *w)
+{
+ PsppireWindowIface *i = PSPPIRE_WINDOW_MODEL_GET_IFACE (w);
+
+ g_assert (PSPPIRE_IS_WINDOW_MODEL (w));
+
+ g_assert (i);
+
+ g_return_if_fail (i->save);
+
+ i->save (w);
+}