FYI, this would have been enough:

Qt Code: 
  1. void LineEditDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
  2. {
  3.   QStyleOptionViewItem noSelectionOption(option);
  4.   noSelectionOption.state &= ~QStyle::State_Selected;
  5.   QStyledItemDelegate::paint(painter, noSelectionOption, index);
  6. }
To copy to clipboard, switch view to plain text mode