First - i've made ListView with some names.
Then I wish that every time user selects name - this position expands to my widget with more data (from other structure - name would be key - or maybe you know better way?).
As I see in QItemDelegate - it should work to display and edit data. Theres a place where widget for editing is created - but there's no place where to create widget for display. At last i see nowhere.
Other approach - connect my self to clicked() signal and then set my widget to appropriate cell.