1 files changed, 173 insertions, 0 deletions
diff --git a/src/plugins/sensors/android/src/androidcompass.cpp b/src/plugins/sensors/android/src/androidcompass.cpp
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+++ b/src/plugins/sensors/android/src/androidcompass.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "androidcompass.h"
+
+#include <QDebug>
+#include <qmath.h>
+#include "androidjnisensors.h"
+
+
+class AndroidAccelerometerListener : public AndroidSensors::AndroidSensorsListenerInterface
+{
+public:
+
+    AndroidAccelerometerListener(AndroidCompass *parent)
+        : m_compass(parent)
+    {
+    }
+
+    void start(int dataRate)
+    {
+        AndroidSensors::registerListener(AndroidSensors::TYPE_ACCELEROMETER, this, dataRate);
+    }
+
+    void stop()
+    {
+        AndroidSensors::unregisterListener(AndroidSensors::TYPE_ACCELEROMETER, this);
+    }
+
+    void onAccuracyChanged(jint accuracy) Q_DECL_OVERRIDE
+    {
+        Q_UNUSED(accuracy);
+    }
+
+    void onSensorChanged(jlong /*timestamp*/, const jfloat *values, uint size) Q_DECL_OVERRIDE
+    {
+        if (size < 3)
+            return;
+        reading[0] = values[0];
+        reading[1] = values[1];
+        reading[2] = values[2];
+        m_compass->testStuff();
+    }
+
+    jfloat reading[3];
+
+private:
+    AndroidCompass *m_compass;
+};
+
+class AndroidMagnetometerListener : public AndroidSensors::AndroidSensorsListenerInterface
+{
+public:
+    AndroidMagnetometerListener(AndroidCompass *parent)
+        :m_compass(parent)
+    {
+
+    }
+
+    void start(int dataRate)
+    {
+        AndroidSensors::registerListener(AndroidSensors::TYPE_MAGNETIC_FIELD, this, dataRate);
+    }
+
+    void stop()
+    {
+        AndroidSensors::unregisterListener(AndroidSensors::TYPE_MAGNETIC_FIELD, this);
+    }
+
+    void onAccuracyChanged(jint accuracy) Q_DECL_OVERRIDE
+    {
+        Q_UNUSED(accuracy);
+    }
+
+    void onSensorChanged(jlong /*timestamp*/, const jfloat *values, uint size) Q_DECL_OVERRIDE
+    {
+        if (size < 3)
+            return;
+        reading[0] = values[0];
+        reading[1] = values[1];
+        reading[2] = values[2];
+        m_compass->testStuff();
+    }
+
+    jfloat reading[3];
+private:
+    AndroidCompass *m_compass;
+};
+
+char const * const AndroidCompass::id("android.synthetic.compass");
+
+AndroidCompass::AndroidCompass(QSensor *sensor)
+    : QSensorBackend(sensor), m_accelerometerListener(0), m_magnetometerListener(0), m_isStarted(false)
+{
+    setReading<QCompassReading>(&m_reading);
+    m_isStarted = false;
+}
+
+AndroidCompass::~AndroidCompass()
+{
+    if (m_isStarted)
+        stop();
+    delete m_accelerometerListener;
+    delete m_magnetometerListener;
+}
+
+void AndroidCompass::start()
+{
+    if (!m_accelerometerListener)
+        m_accelerometerListener = new AndroidAccelerometerListener(this);
+    m_accelerometerListener->start(sensor()->dataRate());
+    if (!m_magnetometerListener)
+        m_magnetometerListener = new AndroidMagnetometerListener(this);
+    m_magnetometerListener->start(sensor()->dataRate());
+
+    m_isStarted = true;
+}
+
+void AndroidCompass::stop()
+{
+    if (m_isStarted) {
+        m_isStarted = false;
+        m_accelerometerListener->stop();
+        m_magnetometerListener->stop();
+    }
+}
+
+void AndroidCompass::testStuff()
+{
+    qreal azimuth = AndroidSensors::getCompassAzimuth(m_accelerometerListener->reading, m_magnetometerListener->reading);
+
+    azimuth = azimuth * 180.0 / M_PI;
+    m_reading.setAzimuth(azimuth);
+    newReadingAvailable();
+}