From 8bd96b78bdf3598549d9de4256af4df93781c528 Mon Sep 17 00:00:00 2001
From: Alexander Volkov <a.volkov@rusbitech.ru>
Date: Wed, 30 Sep 2015 16:13:55 +0300
Subject: Add compass support to the iio-sensor-proxy backend

Change-Id: Ife5ca9224e4a1ac0b57a25aeb59e2f23e505082b
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
---
 .../iio-sensor-proxy/iiosensorproxycompass.cpp     | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 src/plugins/sensors/iio-sensor-proxy/iiosensorproxycompass.cpp

(limited to 'src/plugins/sensors/iio-sensor-proxy/iiosensorproxycompass.cpp')

diff --git a/src/plugins/sensors/iio-sensor-proxy/iiosensorproxycompass.cpp b/src/plugins/sensors/iio-sensor-proxy/iiosensorproxycompass.cpp
new file mode 100644
index 00000000..e530e0db
--- /dev/null
+++ b/src/plugins/sensors/iio-sensor-proxy/iiosensorproxycompass.cpp
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Alexander Volkov <a.volkov@rusbitech.ru>
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "iiosensorproxycompass.h"
+#include "compass_interface.h"
+
+#include <QtDBus/QDBusPendingReply>
+
+char const * const IIOSensorProxyCompass::id("iio-sensor-proxy.compass");
+
+static inline QString dbusPath() { return QStringLiteral("/net/hadess/SensorProxy/Compass"); }
+
+IIOSensorProxyCompass::IIOSensorProxyCompass(QSensor *sensor)
+    : IIOSensorProxySensorBase(dbusPath(), NetHadessSensorProxyCompassInterface::staticInterfaceName(), sensor)
+{
+    setReading<QCompassReading>(&m_reading);
+    m_sensorProxyInterface = new NetHadessSensorProxyCompassInterface(serviceName(), dbusPath(),
+                                                                      QDBusConnection::systemBus(), this);
+}
+
+IIOSensorProxyCompass::~IIOSensorProxyCompass()
+{
+}
+
+void IIOSensorProxyCompass::start()
+{
+    if (isServiceRunning()) {
+        if (m_sensorProxyInterface->hasCompass()) {
+            QDBusPendingReply<> reply = m_sensorProxyInterface->ClaimCompass();
+            reply.waitForFinished();
+            if (!reply.isError()) {
+                double azimuth = m_sensorProxyInterface->compassHeading();
+                updateAzimuth(azimuth);
+                return;
+            }
+        }
+    }
+    sensorStopped();
+}
+
+void IIOSensorProxyCompass::stop()
+{
+    if (isServiceRunning()) {
+        QDBusPendingReply<> reply = m_sensorProxyInterface->ReleaseCompass();
+        reply.waitForFinished();
+    }
+    sensorStopped();
+}
+
+void IIOSensorProxyCompass::updateProperties(const QVariantMap &changedProperties)
+{
+    if (changedProperties.contains("CompassHeading")) {
+        double azimuth = changedProperties.value("CompassHeading").toDouble();
+        updateAzimuth(azimuth);
+    }
+}
+
+void IIOSensorProxyCompass::updateAzimuth(double azimuth)
+{
+    m_reading.setAzimuth(azimuth);
+    m_reading.setTimestamp(produceTimestamp());
+    newReadingAvailable();
+}
-- 
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