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/***************************************************************************
**
** 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "devicefinder.h"
#include "devicehandler.h"
#include "deviceinfo.h"
DeviceFinder::DeviceFinder(DeviceHandler *handler, QObject *parent):
BluetoothBaseClass(parent),
m_deviceHandler(handler)
{
//! [devicediscovery-1]
m_deviceDiscoveryAgent = new QBluetoothDeviceDiscoveryAgent(this);
m_deviceDiscoveryAgent->setLowEnergyDiscoveryTimeout(5000);
connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &DeviceFinder::addDevice);
connect(m_deviceDiscoveryAgent, static_cast<void (QBluetoothDeviceDiscoveryAgent::*)(QBluetoothDeviceDiscoveryAgent::Error)>(&QBluetoothDeviceDiscoveryAgent::error),
this, &DeviceFinder::scanError);
connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::finished, this, &DeviceFinder::scanFinished);
connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::canceled, this, &DeviceFinder::scanFinished);
//! [devicediscovery-1]
#ifdef SIMULATOR
m_demoTimer.setSingleShot(true);
m_demoTimer.setInterval(2000);
connect(&m_demoTimer, &QTimer::timeout, this, &DeviceFinder::scanFinished);
#endif
}
DeviceFinder::~DeviceFinder()
{
qDeleteAll(m_devices);
m_devices.clear();
}
void DeviceFinder::startSearch()
{
clearMessages();
m_deviceHandler->setDevice(0);
qDeleteAll(m_devices);
m_devices.clear();
emit devicesChanged();
#ifdef SIMULATOR
m_demoTimer.start();
#else
//! [devicediscovery-2]
m_deviceDiscoveryAgent->start(QBluetoothDeviceDiscoveryAgent::LowEnergyMethod);
//! [devicediscovery-2]
#endif
emit scanningChanged();
setInfo(tr("Scanning for devices..."));
}
//! [devicediscovery-3]
void DeviceFinder::addDevice(const QBluetoothDeviceInfo &device)
{
// If device is LowEnergy-device, add it to the list
if (device.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) {
m_devices.append(new DeviceInfo(device));
setInfo(tr("Low Energy device found. Scanning more..."));
//! [devicediscovery-3]
emit devicesChanged();
//! [devicediscovery-4]
}
//...
}
//! [devicediscovery-4]
void DeviceFinder::scanError(QBluetoothDeviceDiscoveryAgent::Error error)
{
if (error == QBluetoothDeviceDiscoveryAgent::PoweredOffError)
setError(tr("The Bluetooth adaptor is powered off."));
else if (error == QBluetoothDeviceDiscoveryAgent::InputOutputError)
setError(tr("Writing or reading from the device resulted in an error."));
else
setError(tr("An unknown error has occurred."));
}
void DeviceFinder::scanFinished()
{
#ifdef SIMULATOR
// Only for testing
for (int i = 0; i < 4; i++)
m_devices.append(new DeviceInfo(QBluetoothDeviceInfo()));
#endif
if (m_devices.size() == 0)
setError(tr("No Low Energy devices found."));
else
setInfo(tr("Scanning done."));
emit scanningChanged();
emit devicesChanged();
}
void DeviceFinder::connectToService(const QString &address)
{
m_deviceDiscoveryAgent->stop();
DeviceInfo *currentDevice = 0;
for (int i = 0; i < m_devices.size(); i++) {
if (((DeviceInfo*)m_devices.at(i))->getAddress() == address ) {
currentDevice = (DeviceInfo*)m_devices.at(i);
break;
}
}
if (currentDevice)
m_deviceHandler->setDevice(currentDevice);
clearMessages();
}
bool DeviceFinder::scanning() const
{
#ifdef SIMULATOR
return m_demoTimer.isActive();
#else
return m_deviceDiscoveryAgent->isActive();
#endif
}
QVariant DeviceFinder::devices()
{
return QVariant::fromValue(m_devices);
}
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