diff options
Diffstat (limited to 'examples/bluetooth/lowenergyscanner/device.cpp')
| -rw-r--r-- | examples/bluetooth/lowenergyscanner/device.cpp | 162 |
1 files changed, 66 insertions, 96 deletions
diff --git a/examples/bluetooth/lowenergyscanner/device.cpp b/examples/bluetooth/lowenergyscanner/device.cpp index e1d96be3..87c2d9cb 100644 --- a/examples/bluetooth/lowenergyscanner/device.cpp +++ b/examples/bluetooth/lowenergyscanner/device.cpp @@ -1,85 +1,44 @@ -/*************************************************************************** -** -** Copyright (C) 2013 BlackBerry Limited. All rights reserved. -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtBluetooth module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2013 BlackBerry Limited. All rights reserved. +// Copyright (C) 2017 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "device.h" -#include <qbluetoothaddress.h> -#include <qbluetoothdevicediscoveryagent.h> -#include <qbluetoothlocaldevice.h> -#include <qbluetoothdeviceinfo.h> -#include <qbluetoothservicediscoveryagent.h> +#include <QBluetoothDeviceInfo> +#include <QBluetoothUuid> + #include <QDebug> -#include <QList> -#include <QMetaEnum> +#include <QMetaObject> #include <QTimer> +#if QT_CONFIG(permissions) +#include <QPermissions> + +#include <QGuiApplication> +#endif + +using namespace Qt::StringLiterals; + Device::Device() { //! [les-devicediscovery-1] - discoveryAgent = new QBluetoothDeviceDiscoveryAgent(); - discoveryAgent->setLowEnergyDiscoveryTimeout(5000); + discoveryAgent = new QBluetoothDeviceDiscoveryAgent(this); + discoveryAgent->setLowEnergyDiscoveryTimeout(25000); connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &Device::addDevice); - connect(discoveryAgent, QOverload<QBluetoothDeviceDiscoveryAgent::Error>::of(&QBluetoothDeviceDiscoveryAgent::error), + connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::errorOccurred, this, &Device::deviceScanError); - connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::finished, this, &Device::deviceScanFinished); + connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::finished, + this, &Device::deviceScanFinished); + connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::canceled, + this, &Device::deviceScanFinished); //! [les-devicediscovery-1] - setUpdate("Search"); + setUpdate(u"Search"_s); } Device::~Device() { - delete discoveryAgent; - delete controller; qDeleteAll(devices); qDeleteAll(m_services); qDeleteAll(m_characteristics); @@ -94,39 +53,52 @@ void Device::startDeviceDiscovery() devices.clear(); emit devicesUpdated(); - setUpdate("Scanning for devices ..."); //! [les-devicediscovery-2] discoveryAgent->start(QBluetoothDeviceDiscoveryAgent::LowEnergyMethod); //! [les-devicediscovery-2] if (discoveryAgent->isActive()) { + setUpdate(u"Stop"_s); m_deviceScanState = true; Q_EMIT stateChanged(); } } +void Device::stopDeviceDiscovery() +{ + if (discoveryAgent->isActive()) + discoveryAgent->stop(); +} + //! [les-devicediscovery-3] void Device::addDevice(const QBluetoothDeviceInfo &info) { - if (info.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) - setUpdate("Last device added: " + info.name()); + if (info.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) { + auto devInfo = new DeviceInfo(info); + auto it = std::find_if(devices.begin(), devices.end(), + [devInfo](DeviceInfo *dev) { + return devInfo->getAddress() == dev->getAddress(); + }); + if (it == devices.end()) { + devices.append(devInfo); + } else { + auto oldDev = *it; + *it = devInfo; + delete oldDev; + } + emit devicesUpdated(); + } } //! [les-devicediscovery-3] void Device::deviceScanFinished() { - const QList<QBluetoothDeviceInfo> foundDevices = discoveryAgent->discoveredDevices(); - for (auto nextDevice : foundDevices) - if (nextDevice.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) - devices.append(new DeviceInfo(nextDevice)); - - emit devicesUpdated(); m_deviceScanState = false; emit stateChanged(); if (devices.isEmpty()) - setUpdate("No Low Energy devices found..."); + setUpdate(u"No Low Energy devices found..."_s); else - setUpdate("Done! Scan Again!"); + setUpdate(u"Done! Scan Again!"_s); } QVariant Device::getDevices() @@ -153,9 +125,9 @@ void Device::scanServices(const QString &address) { // We need the current device for service discovery. - for (auto d: qAsConst(devices)) { + for (auto d: std::as_const(devices)) { if (auto device = qobject_cast<DeviceInfo *>(d)) { - if (device->getAddress() == address ) { + if (device->getAddress() == address) { currentDevice.setDevice(device->getDevice()); break; } @@ -174,7 +146,7 @@ void Device::scanServices(const QString &address) m_services.clear(); emit servicesUpdated(); - setUpdate("Back\n(Connecting to device...)"); + setUpdate(u"Back\n(Connecting to device...)"_s); if (controller && m_previousAddress != currentDevice.getAddress()) { controller->disconnectFromDevice(); @@ -185,11 +157,10 @@ void Device::scanServices(const QString &address) //! [les-controller-1] if (!controller) { // Connecting signals and slots for connecting to LE services. - controller = QLowEnergyController::createCentral(currentDevice.getDevice()); + controller = QLowEnergyController::createCentral(currentDevice.getDevice(), this); connect(controller, &QLowEnergyController::connected, this, &Device::deviceConnected); - connect(controller, QOverload<QLowEnergyController::Error>::of(&QLowEnergyController::error), - this, &Device::errorReceived); + connect(controller, &QLowEnergyController::errorOccurred, this, &Device::errorReceived); connect(controller, &QLowEnergyController::disconnected, this, &Device::deviceDisconnected); connect(controller, &QLowEnergyController::serviceDiscovered, @@ -226,7 +197,7 @@ void Device::addLowEnergyService(const QBluetoothUuid &serviceUuid) void Device::serviceScanDone() { - setUpdate("Back\n(Service scan done!)"); + setUpdate(u"Back\n(Service scan done!)"_s); // force UI in case we didn't find anything if (m_services.isEmpty()) emit servicesUpdated(); @@ -235,7 +206,7 @@ void Device::serviceScanDone() void Device::connectToService(const QString &uuid) { QLowEnergyService *service = nullptr; - for (auto s: qAsConst(m_services)) { + for (auto s: std::as_const(m_services)) { auto serviceInfo = qobject_cast<ServiceInfo *>(s); if (!serviceInfo) continue; @@ -253,12 +224,12 @@ void Device::connectToService(const QString &uuid) m_characteristics.clear(); emit characteristicsUpdated(); - if (service->state() == QLowEnergyService::DiscoveryRequired) { + if (service->state() == QLowEnergyService::RemoteService) { //! [les-service-3] connect(service, &QLowEnergyService::stateChanged, this, &Device::serviceDetailsDiscovered); service->discoverDetails(); - setUpdate("Back\n(Discovering details...)"); + setUpdate(u"Back\n(Discovering details...)"_s); //! [les-service-3] return; } @@ -275,7 +246,7 @@ void Device::connectToService(const QString &uuid) void Device::deviceConnected() { - setUpdate("Back\n(Discovering services...)"); + setUpdate(u"Back\n(Discovering services...)"_s); connected = true; //! [les-service-2] controller->discoverServices(); @@ -285,7 +256,7 @@ void Device::deviceConnected() void Device::errorReceived(QLowEnergyController::Error /*error*/) { qWarning() << "Error: " << controller->errorString(); - setUpdate(QString("Back\n(%1)").arg(controller->errorString())); + setUpdate(u"Back\n(%1)"_s.arg(controller->errorString())); } void Device::setUpdate(const QString &message) @@ -315,12 +286,12 @@ void Device::deviceDisconnected() void Device::serviceDetailsDiscovered(QLowEnergyService::ServiceState newState) { - if (newState != QLowEnergyService::ServiceDiscovered) { + if (newState != QLowEnergyService::RemoteServiceDiscovered) { // do not hang in "Scanning for characteristics" mode forever // in case the service discovery failed // We have to queue the signal up to give UI time to even enter // the above mode - if (newState != QLowEnergyService::DiscoveringServices) { + if (newState != QLowEnergyService::RemoteServiceDiscovering) { QMetaObject::invokeMethod(this, "characteristicsUpdated", Qt::QueuedConnection); } @@ -346,18 +317,17 @@ void Device::serviceDetailsDiscovered(QLowEnergyService::ServiceState newState) void Device::deviceScanError(QBluetoothDeviceDiscoveryAgent::Error error) { - if (error == QBluetoothDeviceDiscoveryAgent::PoweredOffError) - setUpdate("The Bluetooth adaptor is powered off, power it on before doing discovery."); - else if (error == QBluetoothDeviceDiscoveryAgent::InputOutputError) - setUpdate("Writing or reading from the device resulted in an error."); - else { + if (error == QBluetoothDeviceDiscoveryAgent::PoweredOffError) { + setUpdate(u"The Bluetooth adaptor is powered off, power it on before doing discovery."_s); + } else if (error == QBluetoothDeviceDiscoveryAgent::InputOutputError) { + setUpdate(u"Writing or reading from the device resulted in an error."_s); + } else { static QMetaEnum qme = discoveryAgent->metaObject()->enumerator( discoveryAgent->metaObject()->indexOfEnumerator("Error")); - setUpdate("Error: " + QLatin1String(qme.valueToKey(error))); + setUpdate(u"Error: "_s + QLatin1StringView(qme.valueToKey(error))); } m_deviceScanState = false; - emit devicesUpdated(); emit stateChanged(); } |