TabularEditor triggering column size recompute

Would like to link a trait listener to the `TabularEditor` that triggers a recompute of the column widths. I tried `refresh` and `update`, and both seemed not to recompute the column widths.

Specifically, I want to call `_TableView` `resizeColumnsToContents` within `traitsui/qt4/tabular_editor.py` whenever `update_editor` of `TabularEditor` (`traitsui/qt4/tabular_editor.py`) is triggered using the update trait listener on traitsui’s `TabularEditor` .

Or there could be a new listener `update_column_widths` in the traitsui `TabularEditor` that triggers `resizeColumnsToContents`?