Associates a sorter with the column.
If sorter is null, the column will not let users change the sorting by clicking on its
header.
This sorter can be made active by clicking on the column header, or by calling [[email protected]_by_column].
See [[email protected]_sorter] for the necessary steps for setting up customizable sorting for [[email protected]].
| this |
a `GtkColumnViewColumn` |
| sorter |
the `GtkSorter` to associate with |