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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef DEVICEHANDLER_H
#define DEVICEHANDLER_H
#include "bluetoothbaseclass.h"
#include <QLowEnergyController>
#include <QLowEnergyService>
#include <qqml.h>
#include <QDateTime>
#include <QList>
#include <QTimer>
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)
Q_PROPERTY(AddressType addressType READ addressType WRITE setAddressType)
QML_NAMED_ELEMENT(AddressType)
QML_UNCREATABLE("Enum is not a type")
public:
enum class AddressType {
PublicAddress,
RandomAddress
};
Q_ENUM(AddressType)
DeviceHandler(QObject *parent = nullptr);
void setDevice(DeviceInfo *device);
void setAddressType(AddressType type);
AddressType addressType() const;
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);
void updateDemoHR();
private:
void addMeasurement(int value);
QLowEnergyController *m_control = nullptr;
QLowEnergyService *m_service = nullptr;
QLowEnergyDescriptor m_notificationDesc;
DeviceInfo *m_currentDevice = nullptr;
bool m_foundHeartRateService = false;
bool m_measuring = false;
int m_currentValue = 0, m_min = 0, m_max = 0, m_sum = 0;
float m_avg = 0, m_calories = 0;
// Statistics
QDateTime m_start;
QDateTime m_stop;
QList<int> m_measurements;
QLowEnergyController::RemoteAddressType m_addressType = QLowEnergyController::PublicAddress;
QTimer m_demoTimer;
};
#endif // DEVICEHANDLER_H
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