Qt 4.7: cloud.h Example File (network/bearercloud/cloud.h)

Qt Reference Documentation

# cloud.h Example File

network/bearercloud/cloud.h

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     ** This file is part of the examples of the Qt Toolkit.
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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;
     };