QGraphicsItem hover events

[stefan]

I have problem with hover events on QGraphicsItem.

class itdItem : public QGraphicsItem
{
     ...
};
class itdNode : public itdItem
{
     ...
     QRectF boundingRect() const;
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
     void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
     void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
     void hoverEnterEvent(QGraphicsSceneHoverEvent * hoverEvent);
     void hoverLeaveEvent(QGraphicsSceneHoverEvent * hoverEvent);
};

class itdItem : public QGraphicsItem
{
     ...
};
class itdNode : public itdItem
{
     ...
     QRectF boundingRect() const;
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
     void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
     void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
     void hoverEnterEvent(QGraphicsSceneHoverEvent * hoverEvent);
     void hoverLeaveEvent(QGraphicsSceneHoverEvent * hoverEvent);
};

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mousePressEvent and mouseMoveEvent are working perfect, but hoverEnterEvent and hoverLeaveEvent methods are never entered. Can somebody help me on this?