satellitemodel.h Example File

satelliteinfo/satellitemodel.h
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 #ifndef SATELLITEMODEL_H
 #define SATELLITEMODEL_H

 #include <QAbstractListModel>
 #include <QSet>
 #include <QtQml/qqml.h>
 #include <QtQml/QQmlParserStatus>
 #include <QtPositioning/QGeoSatelliteInfoSource>

 QT_FORWARD_DECLARE_CLASS(QTimer)
 QT_FORWARD_DECLARE_CLASS(QGeoSatelliteInfoSource)

 class SatelliteModel : public QAbstractListModel, public QQmlParserStatus
 {
     Q_OBJECT
     Q_PROPERTY(bool running READ running WRITE setRunning NOTIFY runningChanged)
     Q_PROPERTY(bool satelliteInfoAvailable READ canProvideSatelliteInfo NOTIFY canProvideSatelliteInfoChanged)
     Q_PROPERTY(int entryCount READ entryCount NOTIFY entryCountChanged)
     Q_PROPERTY(bool singleRequestMode READ isSingleRequest WRITE setSingleRequest NOTIFY singleRequestChanged)
     Q_INTERFACES(QQmlParserStatus)
 public:
     explicit SatelliteModel(QObject *parent = 0);

     enum {
         IdentifierRole = Qt::UserRole + 1,
         InUseRole,
         SignalStrengthRole,
         ElevationRole,
         AzimuthRole
     };

     //From QAbstractListModel
     int rowCount(const QModelIndex &parent) const;
     QVariant data(const QModelIndex &index, int role) const;
     QHash<int, QByteArray> roleNames() const;

     //From QQmlParserStatus
     void classBegin() {}
     void componentComplete();

     bool running() const;
     void setRunning(bool isActive);

     bool isSingleRequest() const;
     void setSingleRequest(bool single);

     int entryCount() const;

     bool canProvideSatelliteInfo() const;

 signals:
     void runningChanged();
     void entryCountChanged();
     void errorFound(int code);
     void canProvideSatelliteInfoChanged();
     void singleRequestChanged();

 public slots:
     void clearModel();
     void updateDemoData();

 private slots:
     void error(QGeoSatelliteInfoSource::Error);
     void satellitesInViewUpdated(const QList<QGeoSatelliteInfo> &infos);
     void satellitesInUseUpdated(const QList<QGeoSatelliteInfo> &infos);

 private:
     QGeoSatelliteInfoSource *source;
     bool m_componentCompleted;
     bool m_running;
     bool m_runningRequested;
     QList <QGeoSatelliteInfo> knownSatellites;
     QSet<int> knownSatelliteIds;
     QSet<int> satellitesInUse;
     bool demo;
     QTimer *timer;
     bool isSingle;
     bool singleRequestServed;

 };

 QML_DECLARE_TYPE(SatelliteModel)

 #endif // SATELLITEMODEL_H