qgeopositioninfosource.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QGEOPOSITIONINFOSOURCE_H
#define QGEOPOSITIONINFOSOURCE_H
 
#include <QtPositioning/QGeoPositionInfo>
 
#include <QtCore/QObject>
 
QT_BEGIN_NAMESPACE
 
class QGeoPositionInfoSourcePrivate;
class Q_POSITIONING_EXPORT QGeoPositionInfoSource : public QObject
{
    Q_OBJECT
    Q_PROPERTY(int updateInterval READ updateInterval WRITE setUpdateInterval BINDABLE
                       bindableUpdateInterval)
    Q_PROPERTY(int minimumUpdateInterval READ minimumUpdateInterval)
    Q_PROPERTY(QString sourceName READ sourceName)
    Q_PROPERTY(PositioningMethods preferredPositioningMethods READ preferredPositioningMethods WRITE
                       setPreferredPositioningMethods BINDABLE bindablePreferredPositioningMethods)
 
public:
    enum Error {
        AccessError = 0,
        ClosedError = 1,
        UnknownSourceError = 2,
        NoError = 3,
        UpdateTimeoutError = 4
    };
    Q_ENUM(Error)
 
    enum PositioningMethod {
        NoPositioningMethods = 0x00000000,
        SatellitePositioningMethods = 0x000000ff,
        NonSatellitePositioningMethods = 0xffffff00,
        AllPositioningMethods = 0xffffffff
    };
    Q_DECLARE_FLAGS(PositioningMethods, PositioningMethod)
 
    explicit QGeoPositionInfoSource(QObject *parent);
    virtual ~QGeoPositionInfoSource();
 
    virtual void setUpdateInterval(int msec);
    int updateInterval() const;
    QBindable<int> bindableUpdateInterval();
 
    virtual void setPreferredPositioningMethods(PositioningMethods methods);
    PositioningMethods preferredPositioningMethods() const;
    QBindable<PositioningMethods> bindablePreferredPositioningMethods();
 
    virtual QGeoPositionInfo lastKnownPosition(bool fromSatellitePositioningMethodsOnly = false) const = 0;
 
    virtual PositioningMethods supportedPositioningMethods() const = 0;
    virtual int minimumUpdateInterval() const = 0;
 
    QString sourceName() const;
 
    virtual bool setBackendProperty(const QString &name, const QVariant &value);
    virtual QVariant backendProperty(const QString &name) const;
 
    static QGeoPositionInfoSource *createDefaultSource(QObject *parent);
    static QGeoPositionInfoSource *createDefaultSource(const QVariantMap &parameters, QObject *parent);
    static QGeoPositionInfoSource *createSource(const QString &sourceName, QObject *parent);
    static QGeoPositionInfoSource *createSource(const QString &sourceName, const QVariantMap &parameters, QObject *parent);
    static QStringList availableSources();
    virtual Error error() const = 0;
 
public Q_SLOTS:
    virtual void startUpdates() = 0;
    virtual void stopUpdates() = 0;
 
    virtual void requestUpdate(int timeout = 0) = 0;
 
Q_SIGNALS:
    void positionUpdated(const QGeoPositionInfo &update);
    void errorOccurred(QGeoPositionInfoSource::Error);
    void supportedPositioningMethodsChanged();
 
protected:
    explicit QGeoPositionInfoSource(QGeoPositionInfoSourcePrivate &dd, QObject *parent);
 
private:
    Q_DISABLE_COPY(QGeoPositionInfoSource)
    Q_DECLARE_PRIVATE(QGeoPositionInfoSource)
};
 
Q_DECLARE_OPERATORS_FOR_FLAGS(QGeoPositionInfoSource::PositioningMethods)
 
QT_END_NAMESPACE
 
#endif