Editable cells in QTableView

I'm working with a QTableView and a QStandardItemModel and would like to make only certain cells editable. Is there any way of doing this? Modifying the EditTriggers seems to give me all or nothing which is a bit too coarse for my taste.

Thanks in advance.

Either override QAbstractItemModel::flags() or in case you use QStandardItems you may use QStandardItem::setFlags() (QStandardItem was introduced in Qt 4.2).