satellitemodel.h Example File | Qt Positioning 5.5

- Qt 5.5
- Qt Positioning
- SatelliteInfo (C++/QML)
- satellitemodel.h Example File
- Qt 5.5.1 Reference Documentation

# satellitemodel.h Example File

satelliteinfo/satellitemodel.h

    /****************************************************************************
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    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
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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