Increase margin for detecting tooltip events of QGraphicsLineItem?

[dobedidoo]

Hi,

I have a QGraphicsView/QGraphicsScene setup with several QGraphicsLineItem:s. Now I would like to increase the margin for detecting tooltip events (QEvent::ToolTip) of these line items.

I was able to affect the margin for detecting mousePressEvent:s by returning a "wider line" from the shape(), like this:

QPainterPath MyLineGraphicsItem::shape() const
{
	QPainterPath path;
	QPainterPathStroker stroker;
	stroker.setWidth(qMax(4, pen().width() + 3));
	path.moveTo(line().p1());
	path.lineTo(line().p2());
	return stroker.createStroke(path);
}

QPainterPath MyLineGraphicsItem::shape() const
{
	QPainterPath path;
	QPainterPathStroker stroker;
	stroker.setWidth(qMax(4, pen().width() + 3));
	path.moveTo(line().p1());
	path.lineTo(line().p2());
	return stroker.createStroke(path);
}

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However, this does not seem to affect the detection of tooltip events. Anyone knows what determines that event if shape() does not?

Many thanks in advance.
/U