renderer = gtk_cell_renderer_text_new();
col = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(col, "min");
gtk_tree_view_column_set_sort_column_id(col, 5);
renderer = gtk_cell_renderer_text_new();
col = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(col, "min");
gtk_tree_view_column_set_sort_column_id(col, 5);