Resize the current column to its contents.

def _resizeCurrentColumnToContents(self, new_index, old_index):
        """Resize the current column to its contents."""
        if new_index.column() not in self._autosized_cols:
            # Ensure the requested column is fully into view after resizing
            self._resizeVisibleColumnsToContents()
            self.dataTable.scrollTo(new_index)