+
+static int calculate_size (GtkWidget *widget)
+{
+ int size = 0;
+
+ if (GTK_IS_TEXT_VIEW (widget))
+ return 0;
+
+ if (GTK_IS_CONTAINER (widget)) {
+ GList *children = gtk_container_get_children (GTK_CONTAINER (widget));
+ while (children != NULL) {
+ GtkWidget *wid = GTK_WIDGET (children->data);
+ gint sz = calculate_size (wid);
+ if ((GTK_WIDGET_VISIBLE (wid))) {
+ size += sz;
+ }
+
+ children = g_list_next (children);
+ }
+ } else {
+ size = widget->allocation.height;
+ }
+
+ return size;
+}
+