Connect to SortColumnChanged signal.
Fills in sort_column_id and order with the current sort column and the order. It returns true unless the sort_column_id is GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID or GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID.
Returns true if the model has a default sort function. This is used primarily by GtkTreeViewColumns in order to determine if a model can go back to the default state, or not.
Sets the default comparison function used when sorting to be sort_func. If the current sort column id of sortable is GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, then the model will sort using this function.
Sets the current sort column to be sort_column_id. The sortable will resort itself to reflect this change, after emitting a GtkTreeSortable::sort-column-changed signal. sort_column_id may either be a regular column id, or one of the following special values:
Sets the comparison function used when sorting to be sort_func. If the current sort column id of sortable is the same as sort_column_id, then the model will sort using this function.
Emits a GtkTreeSortable::sort-column-changed signal on sortable.
Deprecated: There is no replacement for this interface. You should use gtk.sort_list_model.SortListModel to wrap your list model instead
The interface for sortable models used by GtkTreeView
gtk.tree_sortable.TreeSortable is an interface to be implemented by tree models which support sorting. The gtk.tree_view.TreeView uses the methods provided by this interface to sort the model.