A GtkTreeModel wrapper which hides parts of the underlying model.
clear_cache() convert_child_iter_to_iter() convert_child_path_to_path() convert_iter_to_child_iter() convert_path_to_child_path() get_model() refilter() set_visible_column() Defines model colum deciding which row to show or hide. set_visible_func() Defines callback deciding which rows to show or hide.