! GTK_WIDGET_REALIZED (tree_view) ||
GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
! GTK_WIDGET_REALIZED (tree_view) ||
GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))