androidmagnetometer.cpp

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++ // Copyright (C) 2019 BogDan Vatra <bogdan@kde.org>

++ // 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

++

++ #include "androidmagnetometer.h"

++

++ AndroidMagnetometer::AndroidMagnetometer(int type, QSensor *sensor, QObject *parent)

++     : SensorEventQueue<QMagnetometerReading>(type, sensor, parent)

++ {}

++

++ void AndroidMagnetometer::dataReceived(const ASensorEvent &event)

++ {

++     const auto &mag = event.magnetic;

++     qreal accuracy = mag.status == ASENSOR_STATUS_NO_CONTACT ? 0 : mag.status / 3.0;

++     // check https://developer.android.com/reference/android/hardware/SensorEvent.html#sensor.type_magnetic_field:

++     // Android uses micro-Tesla, Qt uses Tesla

++     qreal x = qreal(mag.x) / 1e6;

++     qreal y = qreal(mag.y) / 1e6;

++     qreal z = qreal(mag.z) / 1e6;

++     if (sensor()->skipDuplicates() && qFuzzyCompare(accuracy, m_reader.calibrationLevel()) &&

++             qFuzzyCompare(x, m_reader.x()) &&

++             qFuzzyCompare(y, m_reader.y()) &&

++             qFuzzyCompare(z, m_reader.z())) {

++         return;

++     }

++     m_reader.setCalibrationLevel(accuracy);

++     m_reader.setTimestamp(uint64_t(event.timestamp / 1000));

++     m_reader.setX(x);

++     m_reader.setY(y);

++     m_reader.setZ(z);

++     newReadingAvailable();

++ }