[Qt-interest] QTableView and delegate

[KC Jones]

> I just want to exchange the data the table should
> display, not the way how some string (5, "foo", etc.) is rendered.

Sounds to me like you should implement a custom model, not a delegate.

Esben suggested the right approach above.  If you are using some
variant of a QSqlQueryModel now, your specialized model can be
trivially small.  Just override the data() method, and only handle the
Qt::DisplayRole case.  I do this to format timestamps.  The data()
method maps the QDateTime objects in my db onto QStrings.  Very
simple, small, effective.

In another context I need to implement a custom item delegate to
specialize the paint() method.  That is a lot more work that is
forcing me to learn more about the rendering machinery than I care to
know.  If you can get it done with a custom model, take that approach.