Changing row height

[supergillis]

Hi,
I am trying to change the height of my rows with a custom item delegate.
I got this, but it doesn't work...

QSize ListItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index)
{
	QSize size = QItemDelegate::sizeHint(option, index);
	size.setHeight(size.height()+10);
	return size;
}

QSize ListItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index)
{
	QSize size = QItemDelegate::sizeHint(option, index);
	size.setHeight(size.height()+10);
	return size;
}

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What am I doing wrong?

Thanks in advance,
Gillis