QItemDelegate::editorEvent

I'm trying to do custom editing in a table via a sub-class of QItemDelegate. But the editorEvent method does not seem to work. If i set the focus policy of the view to Qt::StrongFocus, it captures mouse click events, but it still doesn't capture key events such as Tab, etc. I know I can use QObject::eventFilter, but that's a lot less convenient because it doesn't provide access to the model. Is there some way to have editorEvent capture key press events?

It just occurred to me after posting this question that maybe the problem is that the editor provided by the delegate gets created on a focus in event and destroyed on a focus out event. Maybe I need to look focus events at the view level rather than at the delegate level.