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Diffstat (limited to 'src/plugins/sensors/android/androidmagnetometer.cpp')
-rw-r--r-- | src/plugins/sensors/android/androidmagnetometer.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/plugins/sensors/android/androidmagnetometer.cpp b/src/plugins/sensors/android/androidmagnetometer.cpp new file mode 100644 index 00000000..ec663c0b --- /dev/null +++ b/src/plugins/sensors/android/androidmagnetometer.cpp @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** Copyright (C) 2019 BogDan Vatra <bogdan@kde.org> +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtSensors module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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(); +} |