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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
++ // Qt-Security score:significant reason:default
++
++ #ifndef QSENSORBACKEND_H
++ #define QSENSORBACKEND_H
++
++ #include <QtSensors/qsensor.h>
++ #include <QtSensors/qsensormanager.h>
++
++ QT_BEGIN_NAMESPACE
++
++ class QSensorBackendPrivate;
++
++ class Q_SENSORS_EXPORT QSensorBackend : public QObject
++ {
++ Q_OBJECT
++ public:
++ explicit QSensorBackend(QSensor *sensor, QObject *parent = nullptr);
++ virtual ~QSensorBackend();
++
++ virtual void start() = 0;
++ virtual void stop() = 0;
++
++ virtual bool isFeatureSupported(QSensor::Feature feature) const;
++
++ // used by the backend to set metadata properties
++ void addDataRate(qreal min, qreal max);
++ void setDataRates(const QSensor *otherSensor);
++ void addOutputRange(qreal min, qreal max, qreal accuracy);
++ void setDescription(const QString &description);
++
++ template <typename T>
++ T *setReading(T *readingClass)
++ {
++ if (!readingClass)
++ readingClass = new T(this);
++ setReadings(readingClass, new T(this), new T(this));
++ return readingClass;
++ }
++
++ QSensorReading *reading() const;
++ QSensor *sensor() const;
++
++ // used by the backend to inform us of events
++ void newReadingAvailable();
++ void sensorStopped();
++ void sensorBusy(bool busy = true);
++ void sensorError(int error);
++
++ private:
++ void setReadings(QSensorReading *device, QSensorReading *filter, QSensorReading *cache);
++
++ Q_DECLARE_PRIVATE(QSensorBackend)
++ Q_DISABLE_COPY(QSensorBackend)
++ };
++
++ QT_END_NAMESPACE
++
++ #endif
++