+ if ( sortable )
+ {
+ gtk_tree_view_column_set_sort_column_id( column, GetModelColumn() );
+ }
+ else
+ {
+ gtk_tree_view_column_set_sort_column_id( column, -1 );
+ gtk_tree_view_column_set_sort_indicator( column, FALSE );
+ gtk_tree_view_column_set_clickable( column, FALSE );
+ }