Add new heartrate example

The example is a redesign by Lasse Räihä based in the
heartrate-listener example.

Change-Id: Iec0f48603408b37c7054839d520368eb1e436895
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 131 insertions, 0 deletions

diff --git a/examples/bluetooth/heartrate-game/devicehandler.h b/examples/bluetooth/heartrate-game/devicehandler.h
new file mode 100644
index 00000000..d00f0406
--- /dev/null
+++ b/examples/bluetooth/heartrate-game/devicehandler.h
@@ -0,0 +1,131 @@
+/***************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtBluetooth module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DEVICEHANDLER_H
+#define DEVICEHANDLER_H
+
+#include "bluetoothbaseclass.h"
+
+#include <QDateTime>
+#include <QVector>
+#include <QTimer>
+#include <QLowEnergyController>
+#include <QLowEnergyService>
+
+class DeviceInfo;
+
+class DeviceHandler : public BluetoothBaseClass
+{
+    Q_OBJECT
+
+    Q_PROPERTY(bool measuring READ measuring NOTIFY measuringChanged)
+    Q_PROPERTY(bool alive READ alive NOTIFY aliveChanged)
+    Q_PROPERTY(int hr READ hr NOTIFY statsChanged)
+    Q_PROPERTY(int maxHR READ maxHR NOTIFY statsChanged)
+    Q_PROPERTY(int minHR READ minHR NOTIFY statsChanged)
+    Q_PROPERTY(float average READ average NOTIFY statsChanged)
+    Q_PROPERTY(int time READ time NOTIFY statsChanged)
+    Q_PROPERTY(float calories READ calories NOTIFY statsChanged)
+
+public:
+    DeviceHandler(QObject *parent = 0);
+
+    void setDevice(DeviceInfo *device);
+    bool measuring() const;
+    bool alive() const;
+
+    // Statistics
+    int hr() const;
+    int time() const;
+    float average() const;
+    int maxHR() const;
+    int minHR() const;
+    float calories() const;
+
+signals:
+    void measuringChanged();
+    void aliveChanged();
+    void statsChanged();
+
+public slots:
+    void startMeasurement();
+    void stopMeasurement();
+    void disconnectService();
+
+private:
+    //QLowEnergyController
+    void serviceDiscovered(const QBluetoothUuid &);
+    void serviceScanDone();
+
+    //QLowEnergyService
+    void serviceStateChanged(QLowEnergyService::ServiceState s);
+    void updateHeartRateValue(const QLowEnergyCharacteristic &c,
+                              const QByteArray &value);
+    void confirmedDescriptorWrite(const QLowEnergyDescriptor &d,
+                              const QByteArray &value);
+
+#ifdef Q_OS_WIN32
+    void updateDemoHR();
+#endif
+private:
+    void addMeasurement(int value);
+
+    QLowEnergyController *m_control;
+    QLowEnergyService *m_service;
+    QLowEnergyDescriptor m_notificationDesc;
+    DeviceInfo *m_currentDevice;
+
+    bool m_foundHeartRateService;
+    bool m_measuring;
+    int m_currentValue, m_min, m_max, m_sum;
+    float m_avg, m_calories;
+
+    // Statistics
+    QDateTime m_start;
+    QDateTime m_stop;
+
+    QVector<int> m_measurements;
+
+#ifdef Q_OS_WIN32
+    QTimer m_demoTimer;
+#endif
+};
+
+#endif // DEVICEHANDLER_H