cloud.h Example File

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 #include <QNetworkConfiguration>
 #include <QNetworkSession>

 #include <QGraphicsItem>
 QT_USE_NAMESPACE

 class QGraphicsTextItem;
 class QGraphicsSvgItem;

 class Cloud : public QObject, public QGraphicsItem
 {
     Q_OBJECT
     Q_INTERFACES(QGraphicsItem)

 public:
     explicit Cloud(const QNetworkConfiguration &config, QGraphicsItem *parent = 0);
     ~Cloud();

     enum { Type = UserType + 1 };
     int type() const { return Type; }

     void setFinalScale(qreal factor);
     void setDeleteAfterAnimation(bool deleteAfter);

     void calculateForces();

     bool advance();
     QRectF boundingRect() const;
     void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);

     static qreal getRadiusForState(QNetworkConfiguration::StateFlags state);

 protected:
     QVariant itemChange(GraphicsItemChange change, const QVariant &value);
     void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);

 private Q_SLOTS:
     void stateChanged(QNetworkSession::State state);
     void newConfigurationActivated();

 private:
     QNetworkConfiguration configuration;
     QNetworkSession *session;

     QGraphicsTextItem *text;
     QGraphicsSvgItem *icon;

     qreal finalOpacity;
     qreal finalScale;
     qreal currentScale;

     QPointF newPos;

     bool deleteAfterAnimation;
 };