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