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/****************************************************************************
**
** Copyright (C) 2016 BogDan Vatra <bogdan@kde.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtSensor 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
package org.qtproject.qt5.android.sensors;
import java.util.HashSet;
import java.util.List;
import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Build;
import android.util.SparseArray;
import android.util.Log;
public class QtSensors implements SensorEventListener
{
static final QtSensors m_sensorsListener = new QtSensors();
static SensorManager m_sensorManager = null;
static SparseArray<Sensor> m_registeredSensors = new SparseArray<Sensor>();
static Object m_syncObject = new Object();
static public void setActivity(Activity activity, Object acitvityDelegate)
{
try {
m_sensorManager = (SensorManager)activity.getSystemService(Activity.SENSOR_SERVICE);
} catch(Exception e) {
e.printStackTrace();
}
}
private static String getSensorDescription(int sensorType)
{
try {
Sensor s = m_sensorManager.getDefaultSensor(sensorType);
if (s == null) {
return null;
}
return s.getName() + " " + s.getVendor() + " v" + s.getVersion();
} catch(Exception e) {
e.printStackTrace();
}
return null;
}
private static int[] getSensorList()
{
try {
List<Sensor> list = m_sensorManager.getSensorList(Sensor.TYPE_ALL);
HashSet<Integer> filteredList = new HashSet<Integer>();
for (Sensor s : list)
filteredList.add(s.getType());
int retList[] = new int[filteredList.size()];
int pos = 0;
for (int type : filteredList)
retList[pos++] = type;
return retList;
} catch(Exception e) {
e.printStackTrace();
}
return null;
}
private static float getSensorMaximumRange(int sensorType)
{
try {
Sensor s = m_sensorManager.getDefaultSensor(sensorType);
return s.getMaximumRange();
} catch(Exception e) {
e.printStackTrace();
}
return 0;
}
private static boolean registerSensor(int sensorType, int rate)
{
synchronized (m_syncObject) {
try {
Sensor s = m_sensorManager.getDefaultSensor(sensorType);
m_sensorManager.registerListener(m_sensorsListener, s, rate);
m_registeredSensors.put(sensorType, s);
} catch(Exception e) {
e.printStackTrace();
return false;
}
}
return true;
}
private static boolean unregisterSensor(int sensorType)
{
synchronized (m_syncObject) {
try {
Sensor s = m_registeredSensors.get(sensorType);
if (s != null) {
m_sensorManager.unregisterListener(m_sensorsListener, m_registeredSensors.get(sensorType));
m_registeredSensors.remove(sensorType);
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
return true;
}
private static float[] convertQuaternionToEuler(float[] rotationVector)
{
float matrix[] = new float[9];
SensorManager.getRotationMatrixFromVector (matrix, rotationVector);
float angles[] = new float[3];
SensorManager.getOrientation (matrix, angles);
return angles;
}
private static float[] mRotation = new float[9];
private static float[] mOrientation = new float[3];
private static float[] mAcc = new float[3];
private static float[] mMag = new float[3];
private static float getCompassAzimuth(float a0, float a1, float a2, float m0, float m1, float m2)
{
mAcc[0] = a0;
mAcc[1] = a1;
mAcc[2] = a2;
mMag[0] = m0;
mMag[1] = m1;
mMag[2] = m2;
SensorManager.getRotationMatrix(mRotation, null, mAcc, mMag);
SensorManager.getOrientation(mRotation, mOrientation);
return mOrientation[0];
}
public static native void accuracyChanged(int sensorType, int accuracy);
public static native void sensorChanged(int sensorType, long timestamp, float[] values);
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy)
{
accuracyChanged(sensor.getType(), accuracy);
}
@Override
public void onSensorChanged(SensorEvent sensorEvent)
{
if (sensorEvent.sensor.getType() == Sensor.TYPE_ROTATION_VECTOR) {
//#### hacky, but much easier than exposing the convert function and converting the arrays back and forth...
sensorChanged(sensorEvent.sensor.getType(), sensorEvent.timestamp, convertQuaternionToEuler(sensorEvent.values));
} else {
sensorChanged(sensorEvent.sensor.getType(), sensorEvent.timestamp, sensorEvent.values);
}
}
}
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