tooltip popup in delegate

[iwatsu]

I have a delegate that gets instantiated when double clicking on an item in a QTreeWidget.
I would like to pop up a tooltip for few seconds and that it slowly disappears afterwards.

Right now I'm doing this:

QWidget * Test::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
	const QModelIndex &index) const
{
   ...
	QToolTip::showText(QCursor::pos(), "test");
}

QWidget * Test::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
	const QModelIndex &index) const
{
   ...
	QToolTip::showText(QCursor::pos(), "test");
}

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The tooltip shows up for a second and disappears. How would I go about doing that?
Thanks