Creating advanced widget in a delegate.

[wysota]

style()->drawControl(...)

style()->drawControl(...)

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and use the editorEvent to handle a click.

Using setIndexWidget() is fine too, it'll be harder to control its looks though. I surely wouldn't use an editor widget there... There is just no benefit of doing that - you don't actually edit anything. Of course it's possible to do that and you can use it if you wish. It's just I'd chose another way