satellitemodel.h Example File

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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