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>

CMakeLists.txt

@@ -161,8 +161,8 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
 	set(ANDROID_PKG AndroidExtras)
 	set(ANDROID_LIB Qt5::AndroidExtras)
 endif()
-find_package(Qt5 REQUIRED COMPONENTS Core Concurrent Widgets Network ${WEBKIT_PKG} ${PRINTING_PKG} Svg Test LinguistTools ${QT_QUICK_PKG} ${ANDROID_PKG})
+find_package(Qt5 REQUIRED COMPONENTS Core Concurrent Widgets Network ${WEBKIT_PKG} ${PRINTING_PKG} Svg Test LinguistTools ${QT_QUICK_PKG} ${ANDROID_PKG} Bluetooth)
-set(QT_LIBRARIES Qt5::Core Qt5::Concurrent Qt5::Widgets Qt5::Network ${WEBKIT_LIB} ${PRINTING_LIB} Qt5::Svg ${QT_QUICK_LIB} ${ANDROID_LIB})
+set(QT_LIBRARIES Qt5::Core Qt5::Concurrent Qt5::Widgets Qt5::Network ${WEBKIT_LIB} ${PRINTING_LIB} Qt5::Svg ${QT_QUICK_LIB} ${ANDROID_LIB} Qt5::Bluetooth)
 set(QT_TEST_LIBRARIES ${QT_LIBRARIES} Qt5::Test)
 
 # Generate the ssrf-config.h every 'make'
@@ -352,6 +352,7 @@ source_group("Subsurface Models" FILES ${SUBSURFACE_MODELS})
 set(SUBSURFACE_INTERFACE
 	qt-ui/updatemanager.cpp
 	qt-ui/about.cpp
+	qt-ui/btdeviceselectiondialog.cpp
 	qt-ui/divecomputermanagementdialog.cpp
 	qt-ui/divelistview.cpp
 	qt-ui/diveplanner.cpp

libdivecomputer.h

@@ -37,6 +37,7 @@ typedef struct device_data_t
 	bool create_new_trip;
 	bool libdc_log;
 	bool libdc_dump;
+	bool bluetooth_mode;
 	FILE *libdc_logfile;
 	struct dive_table *download_table;
 } device_data_t;

qt-ui/btdeviceselectiondialog.cpp

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

qt-ui/btdeviceselectiondialog.h

@@ -0,0 +1,46 @@
+#ifndef BTDEVICESELECTIONDIALOG_H
+#define BTDEVICESELECTIONDIALOG_H
+
+#include <QDialog>
+#include <QListWidgetItem>
+#include <QPointer>
+#include <QtBluetooth/QBluetoothLocalDevice>
+#include <QtBluetooth/qbluetoothglobal.h>
+#include <QtBluetooth/QBluetoothDeviceDiscoveryAgent>
+
+Q_DECLARE_METATYPE(QBluetoothDeviceInfo)
+
+namespace Ui {
+	class BtDeviceSelectionDialog;
+}
+
+class BtDeviceSelectionDialog : public QDialog {
+	Q_OBJECT
+
+public:
+	explicit BtDeviceSelectionDialog(QWidget *parent = 0);
+	~BtDeviceSelectionDialog();
+	QString getSelectedDeviceAddress();
+	QString getSelectedDeviceName();
+
+private slots:
+	void on_changeDeviceState_clicked();
+	void on_save_clicked();
+	void on_clear_clicked();
+	void on_scan_clicked();
+	void remoteDeviceScanFinished();
+	void hostModeStateChanged(QBluetoothLocalDevice::HostMode mode);
+	void addRemoteDevice(const QBluetoothDeviceInfo &remoteDeviceInfo);
+	void itemActivated(QListWidgetItem *item);
+	void displayPairingMenu(const QPoint &pos);
+	void pairingFinished(const QBluetoothAddress &address,QBluetoothLocalDevice::Pairing pairing);
+	void error(QBluetoothLocalDevice::Error error);
+
+private:
+	Ui::BtDeviceSelectionDialog *ui;
+	QBluetoothLocalDevice *localDevice;
+	QBluetoothDeviceDiscoveryAgent *remoteDeviceDiscoveryAgent;
+	QSharedPointer<QBluetoothDeviceInfo> selectedRemoteDeviceInfo;
+};
+
+#endif // BTDEVICESELECTIONDIALOG_H

qt-ui/btdeviceselectiondialog.ui

@@ -0,0 +1,214 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>BtDeviceSelectionDialog</class>
+ <widget class="QDialog" name="BtDeviceSelectionDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>735</width>
+    <height>460</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Remote Bluetooth device selection</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <widget class="QLabel" name="discoveredDevicesLabel">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="font">
+      <font>
+       <weight>75</weight>
+       <bold>true</bold>
+      </font>
+     </property>
+     <property name="text">
+      <string>Discovered devices</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <layout class="QHBoxLayout" name="dialogControls">
+     <item>
+      <widget class="QPushButton" name="save">
+       <property name="text">
+        <string>Save</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="quit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Quit</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="0" rowspan="2">
+    <layout class="QVBoxLayout" name="remoteDevicesSection">
+     <item>
+      <widget class="QListWidget" name="discoveredDevicesList">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="Expanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="scanningControls">
+       <item>
+        <widget class="QPushButton" name="scan">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Scan</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="clear">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Clear</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="1">
+    <widget class="QGroupBox" name="localDeviceDetails">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="font">
+      <font>
+       <weight>75</weight>
+       <bold>true</bold>
+      </font>
+     </property>
+     <property name="title">
+      <string>Local Bluetooth device details</string>
+     </property>
+     <property name="flat">
+      <bool>false</bool>
+     </property>
+     <layout class="QFormLayout" name="formLayout_2">
+      <item row="0" column="0">
+       <widget class="QLabel" name="deviceNameLable">
+        <property name="text">
+         <string>Name: </string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="deviceName">
+        <property name="readOnly">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="deviceAddressLable">
+        <property name="text">
+         <string>Address:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="deviceAddress">
+        <property name="readOnly">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QCheckBox" name="deviceState">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="font">
+         <font>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Bluetooth powered on</string>
+        </property>
+        <property name="checkable">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="QPushButton" name="changeDeviceState">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Expanding" vsizetype="Minimum">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="font">
+         <font>
+          <weight>50</weight>
+          <bold>false</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>Turn On/Off</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="dialogStatus">
+     <property name="text">
+      <string/>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

qt-ui/downloadfromdivecomputer.cpp

@@ -99,6 +99,8 @@ DownloadFromDCWidget::DownloadFromDCWidget(QWidget *parent, Qt::WindowFlags f) :
 	ui.ok->setEnabled(false);
 	ui.downloadCancelRetryButton->setEnabled(true);
 	ui.downloadCancelRetryButton->setText(tr("Download"));
+
+	btDeviceSelectionDialog = 0;
 	ui.chooseBluetoothDevice->setEnabled(ui.bluetoothMode->isChecked());
 	connect(ui.bluetoothMode, SIGNAL(stateChanged(int)), this, SLOT(enableBluetoothMode(int)));
 	connect(ui.chooseBluetoothDevice, SIGNAL(clicked()), this, SLOT(selectRemoteBluetoothDevice()));
@@ -311,7 +313,11 @@ void DownloadFromDCWidget::on_downloadCancelRetryButton_clicked()
 
 	data.vendor = strdup(ui.vendor->currentText().toUtf8().data());
 	data.product = strdup(ui.product->currentText().toUtf8().data());
-	if (same_string(data.vendor, "Uemis")) {
+	data.bluetooth_mode = ui.bluetoothMode->isChecked();
+	if (data.bluetooth_mode) {
+		// Get the selected device address
+		data.devname = strdup(btDeviceSelectionDialog->getSelectedDeviceAddress().toUtf8().data());
+	} else if (same_string(data.vendor, "Uemis")) {
 		char *colon;
 		char *devname = strdup(ui.device->currentText().toUtf8().data());
 
@@ -523,7 +529,24 @@ void DownloadFromDCWidget::markChildrenAsEnabled()
 
 void DownloadFromDCWidget::selectRemoteBluetoothDevice()
 {
-	//TODO add implementation
+	if (!btDeviceSelectionDialog) {
+		btDeviceSelectionDialog = new BtDeviceSelectionDialog(this);
+		connect(btDeviceSelectionDialog, SIGNAL(finished(int)),
+			this, SLOT(bluetoothSelectionDialogIsFinished(int)));
+	}
+
+	btDeviceSelectionDialog->show();
+}
+
+void DownloadFromDCWidget::bluetoothSelectionDialogIsFinished(int result)
+{
+	if (result == QDialog::Accepted) {
+		/* Make the selected Bluetooth device default */
+		ui.device->setCurrentText(btDeviceSelectionDialog->getSelectedDeviceName());
+	} else if (result == QDialog::Rejected){
+		/* Disable Bluetooth download mode */
+		ui.bluetoothMode->setChecked(false);
+	}
 }
 
 void DownloadFromDCWidget::enableBluetoothMode(int state)

qt-ui/downloadfromdivecomputer.h

@@ -10,6 +10,7 @@
 #include "libdivecomputer.h"
 #include "configuredivecomputerdialog.h"
 #include "ui_downloadfromdivecomputer.h"
+#include "btdeviceselectiondialog.h"
 
 class QStringListModel;
 
@@ -81,6 +82,7 @@ slots:
 	void pickDumpFile();
 	void pickLogFile();
 	void selectRemoteBluetoothDevice();
+	void bluetoothSelectionDialogIsFinished(int result);
 
 private:
 	void markChildrenAsDisabled();
@@ -106,6 +108,7 @@ private:
 	bool dumpWarningShown;
 	OstcFirmwareCheck *ostcFirmwareCheck;
 	DiveImportedModel *diveImportedModel;
+	BtDeviceSelectionDialog *btDeviceSelectionDialog;
 
 public:
 	bool preferDownloaded();