QAbstractItemView problem

[marcel]

You didn't reimplement all abstract methods or you didn't declare them correctly.
For instance, indexAt should be const:

QModelIndex indexAt ( const QPoint & point ) const;

QModelIndex indexAt ( const QPoint & point ) const;

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Also, visualRect is also const.
So take another look at the QAbstractItemView interface and define all functions properly.

Regards