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Add a dialog for remote Bluetooth devices selection
Implement a dialog which can be used for remote Bluetooth devices selection and to control the local Bluetooth device. Functionalities of the widget: - expose information about the local BT device - scan for remote BT devices - pair/unpair with a remote BT device - turn on/off the local BT device - logging - save the selected BT device The selection dialog is created when the bluetoothMode checkbox is enabled. Signed-off-by: Claudiu Olteanu <olteanu.claudiu@ymail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Claudiu Olteanu
Dirk Hohndel
parent
b4c4d95ea4
commit
dff4e5f33e
7 changed files with 553 additions and 4 deletions
261
qt-ui/btdeviceselectiondialog.cpp
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261
qt-ui/btdeviceselectiondialog.cpp
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#include <QShortcut>
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#include <QDebug>
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#include <QMessageBox>
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#include <QMenu>
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#include "ui_btdeviceselectiondialog.h"
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#include "btdeviceselectiondialog.h"
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BtDeviceSelectionDialog::BtDeviceSelectionDialog(QWidget *parent) :
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QDialog(parent),
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localDevice(new QBluetoothLocalDevice),
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ui(new Ui::BtDeviceSelectionDialog)
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{
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// Check if Bluetooth is available on this device
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if (!localDevice->isValid()) {
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QMessageBox::warning(this, tr("Warning"),
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"This should never happen, please contact the Subsurface developers "
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"and tell them that the Bluetooth download mode doesn't work.");
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return;
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}
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ui->setupUi(this);
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// Quit button callbacks
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QShortcut *quit = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q), this);
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connect(quit, SIGNAL(activated()), this, SLOT(reject()));
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connect(ui->quit, SIGNAL(clicked()), this, SLOT(reject()));
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// Disable the save button because there is no device selected
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ui->save->setEnabled(false);
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connect(ui->discoveredDevicesList, SIGNAL(itemActivated(QListWidgetItem*)),
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this, SLOT(itemActivated(QListWidgetItem*)));
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// Set UI information about the local device
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ui->deviceAddress->setText(localDevice->address().toString());
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ui->deviceName->setText(localDevice->name());
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connect(localDevice, SIGNAL(hostModeStateChanged(QBluetoothLocalDevice::HostMode)),
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this, SLOT(hostModeStateChanged(QBluetoothLocalDevice::HostMode)));
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// Initialize the state of the local device and activate/deactive the scan button
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hostModeStateChanged(localDevice->hostMode());
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// Intialize the discovery agent
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remoteDeviceDiscoveryAgent = new QBluetoothDeviceDiscoveryAgent();
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connect(remoteDeviceDiscoveryAgent, SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
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this, SLOT(addRemoteDevice(QBluetoothDeviceInfo)));
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connect(remoteDeviceDiscoveryAgent, SIGNAL(finished()),
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this, SLOT(remoteDeviceScanFinished()));
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// Add context menu for devices to be able to pair them
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ui->discoveredDevicesList->setContextMenuPolicy(Qt::CustomContextMenu);
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connect(ui->discoveredDevicesList, SIGNAL(customContextMenuRequested(QPoint)),
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this, SLOT(displayPairingMenu(QPoint)));
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connect(localDevice, SIGNAL(pairingFinished(QBluetoothAddress, QBluetoothLocalDevice::Pairing)),
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this, SLOT(pairingFinished(QBluetoothAddress, QBluetoothLocalDevice::Pairing)));
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connect(localDevice, SIGNAL(error(QBluetoothLocalDevice::Error)),
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this, SLOT(error(QBluetoothLocalDevice::Error)));
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}
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BtDeviceSelectionDialog::~BtDeviceSelectionDialog()
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{
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delete ui;
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}
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void BtDeviceSelectionDialog::on_changeDeviceState_clicked()
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{
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if (localDevice->hostMode() == QBluetoothLocalDevice::HostPoweredOff) {
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ui->dialogStatus->setText("Trying to turn on the local Bluetooth device...");
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localDevice->powerOn();
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} else {
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ui->dialogStatus->setText("Trying to turn off the local Bluetooth device...");
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localDevice->setHostMode(QBluetoothLocalDevice::HostPoweredOff);
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}
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}
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void BtDeviceSelectionDialog::on_save_clicked()
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{
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// Get the selected device. There will be always a selected device if the save button is enabled.
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QListWidgetItem *currentItem = ui->discoveredDevicesList->currentItem();
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QBluetoothDeviceInfo remoteDeviceInfo = currentItem->data(Qt::UserRole).value<QBluetoothDeviceInfo>();
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// Save the selected device
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selectedRemoteDeviceInfo = QSharedPointer<QBluetoothDeviceInfo>(new QBluetoothDeviceInfo(remoteDeviceInfo));
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// Close the device selection dialog and set the result code to Accepted
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accept();
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}
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void BtDeviceSelectionDialog::on_clear_clicked()
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{
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ui->dialogStatus->setText("Remote devices list was cleaned.");
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ui->discoveredDevicesList->clear();
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ui->save->setEnabled(false);
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}
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void BtDeviceSelectionDialog::on_scan_clicked()
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{
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ui->dialogStatus->setText("Scanning for remote devices...");
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remoteDeviceDiscoveryAgent->start();
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ui->scan->setEnabled(false);
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}
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void BtDeviceSelectionDialog::remoteDeviceScanFinished()
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{
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ui->dialogStatus->setText("Scanning finished.");
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ui->scan->setEnabled(true);
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}
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void BtDeviceSelectionDialog::hostModeStateChanged(QBluetoothLocalDevice::HostMode mode)
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{
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bool on = !(mode == QBluetoothLocalDevice::HostPoweredOff);
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ui->dialogStatus->setText(QString("The local Bluetooth device was turned %1.")
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.arg(on? "ON" : "OFF"));
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ui->deviceState->setChecked(on);
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ui->scan->setEnabled(on);
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}
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void BtDeviceSelectionDialog::addRemoteDevice(const QBluetoothDeviceInfo &remoteDeviceInfo)
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{
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QString deviceLable = QString("%1 (%2)").arg(remoteDeviceInfo.name()).arg(remoteDeviceInfo.address().toString());
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QList<QListWidgetItem *> itemsWithSameSignature = ui->discoveredDevicesList->findItems(deviceLable, Qt::MatchStartsWith);
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// Check if the remote device is already in the list
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if (itemsWithSameSignature.empty()) {
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QListWidgetItem *item = new QListWidgetItem(deviceLable);
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QBluetoothLocalDevice::Pairing pairingStatus = localDevice->pairingStatus(remoteDeviceInfo.address());
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item->setData(Qt::UserRole, QVariant::fromValue(remoteDeviceInfo));
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if (pairingStatus == QBluetoothLocalDevice::Paired) {
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item->setText(QString("%1 [State: PAIRED]").arg(item->text()));
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item->setBackgroundColor(QColor(Qt::gray));
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} else if (pairingStatus == QBluetoothLocalDevice::AuthorizedPaired) {
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item->setText(QString("%1 [State: AUTHORIZED_PAIRED]").arg(item->text()));
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item->setBackgroundColor(QColor(Qt::blue));
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} else {
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item->setText(QString("%1 [State: UNPAIRED]").arg(item->text()));
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item->setTextColor(QColor(Qt::black));
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}
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ui->discoveredDevicesList->addItem(item);
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}
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}
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void BtDeviceSelectionDialog::itemActivated(QListWidgetItem *item)
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{
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QBluetoothDeviceInfo remoteDeviceInfo = item->data(Qt::UserRole).value<QBluetoothDeviceInfo>();
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QBluetoothLocalDevice::Pairing pairingStatus = localDevice->pairingStatus(remoteDeviceInfo.address());
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if (pairingStatus == QBluetoothLocalDevice::Unpaired) {
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ui->dialogStatus->setText(QString("The device %1 must be paired in order to be used. Please use the context menu for pairing options.")
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.arg(remoteDeviceInfo.address().toString()));
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ui->save->setEnabled(false);
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} else {
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ui->dialogStatus->setText(QString("The device %1 can be used for connection. You can press the Save button.")
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.arg(remoteDeviceInfo.address().toString()));
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ui->save->setEnabled(true);
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}
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}
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void BtDeviceSelectionDialog::displayPairingMenu(const QPoint &pos)
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{
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QMenu menu(this);
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QAction *pairAction = menu.addAction("Pair");
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QAction *removePairAction = menu.addAction("Remove Pairing");
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QAction *chosenAction = menu.exec(ui->discoveredDevicesList->viewport()->mapToGlobal(pos));
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QListWidgetItem *currentItem = ui->discoveredDevicesList->currentItem();
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QBluetoothDeviceInfo currentRemoteDeviceInfo = currentItem->data(Qt::UserRole).value<QBluetoothDeviceInfo>();
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QBluetoothLocalDevice::Pairing pairingStatus = localDevice->pairingStatus(currentRemoteDeviceInfo.address());
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//TODO: disable the actions
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if (pairingStatus == QBluetoothLocalDevice::Unpaired) {
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pairAction->setEnabled(true);
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removePairAction->setEnabled(false);
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} else {
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pairAction->setEnabled(false);
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removePairAction->setEnabled(true);
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}
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if (chosenAction == pairAction) {
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ui->dialogStatus->setText(QString("Trying to pair device %1")
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.arg(currentRemoteDeviceInfo.address().toString()));
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localDevice->requestPairing(currentRemoteDeviceInfo.address(), QBluetoothLocalDevice::Paired);
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} else if (chosenAction == removePairAction) {
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ui->dialogStatus->setText(QString("Trying to unpair device %1")
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.arg(currentRemoteDeviceInfo.address().toString()));
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localDevice->requestPairing(currentRemoteDeviceInfo.address(), QBluetoothLocalDevice::Unpaired);
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}
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}
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void BtDeviceSelectionDialog::pairingFinished(const QBluetoothAddress &address, QBluetoothLocalDevice::Pairing pairing)
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{
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QString remoteDeviceStringAddress = address.toString();
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QList<QListWidgetItem *> items = ui->discoveredDevicesList->findItems(remoteDeviceStringAddress, Qt::MatchContains);
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if (pairing == QBluetoothLocalDevice::Paired || pairing == QBluetoothLocalDevice::Paired ) {
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ui->dialogStatus->setText(QString("Device %1 was paired.")
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.arg(remoteDeviceStringAddress));
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for (int i = 0; i < items.count(); ++i) {
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QListWidgetItem *item = items.at(i);
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item->setText(QString("%1 [State: PAIRED]").arg(remoteDeviceStringAddress));
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item->setBackgroundColor(QColor(Qt::gray));
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}
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QListWidgetItem *currentItem = ui->discoveredDevicesList->currentItem();
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if (currentItem != NULL && currentItem->text().contains(remoteDeviceStringAddress, Qt::CaseInsensitive)) {
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ui->dialogStatus->setText(QString("The device %1 can now be used for connection. You can press the Save button.")
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.arg(remoteDeviceStringAddress));
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ui->save->setEnabled(true);
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}
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} else {
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ui->dialogStatus->setText(QString("Device %1 was unpaired.")
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.arg(remoteDeviceStringAddress));
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for (int i = 0; i < items.count(); ++i) {
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QListWidgetItem *item = items.at(i);
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item->setText(QString("%1 [State: UNPAIRED]").arg(remoteDeviceStringAddress));
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item->setBackgroundColor(QColor(Qt::white));
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}
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QListWidgetItem *currentItem = ui->discoveredDevicesList->currentItem();
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if (currentItem != NULL && currentItem->text().contains(remoteDeviceStringAddress, Qt::CaseInsensitive)) {
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ui->dialogStatus->setText(QString("The device %1 must be paired in order to be used. Please use the context menu for pairing options.")
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.arg(remoteDeviceStringAddress));
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ui->save->setEnabled(false);
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}
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}
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}
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void BtDeviceSelectionDialog::error(QBluetoothLocalDevice::Error error)
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{
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ui->dialogStatus->setText(QString("Local device error: %1.")
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.arg((error == QBluetoothLocalDevice::PairingError)? "Pairing error" : "Unknown error"));
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}
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QString BtDeviceSelectionDialog::getSelectedDeviceAddress()
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{
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if (selectedRemoteDeviceInfo) {
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return selectedRemoteDeviceInfo.data()->address().toString();
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}
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return QString();
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}
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QString BtDeviceSelectionDialog::getSelectedDeviceName()
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{
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if (selectedRemoteDeviceInfo) {
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return selectedRemoteDeviceInfo.data()->name();
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}
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return QString();
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}
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