Qt 5.9 | Qt Positioning | SatelliteInfo (C++/QML) | satellitemodel.h Example File

Qt 5.9.4 Reference Documentation

# 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