GtkTreeModelSort
@child_model:
@Returns:
@func:
@sort_col:
@model:
@tree_model:
@Returns:
@tree_model_sort:
@child_path:
@Returns:
@tree_model_sort:
@sort_iter:
@child_iter:
@tree_model_sort:
@sorted_path:
@Returns:
@tree_model_sort:
@child_iter:
@sorted_iter:
@tree_model_sort:
@tree_model_sort: