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bluetoothdevicemodel.cpp
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bluetoothdevicemodel.cpp
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/***************************************************************************
bluetoothdevicemodel.cpp - BluetoothDeviceModel
---------------------
begin : 20.11.2020
copyright : (C) 2020 by David Signer
email : david (at) opengis.ch
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "bluetoothdevicemodel.h"
#include <QDebug>
#include <QSettings>
#include <qgis.h>
BluetoothDeviceModel::BluetoothDeviceModel( QObject *parent )
: QAbstractListModel( parent )
{
}
void BluetoothDeviceModel::initiateDiscoveryAgent()
{
mLocalDevice = std::make_unique<QBluetoothLocalDevice>();
mServiceDiscoveryAgent = std::make_unique<QBluetoothServiceDiscoveryAgent>();
connect( mServiceDiscoveryAgent.get(), &QBluetoothServiceDiscoveryAgent::serviceDiscovered, this, &BluetoothDeviceModel::serviceDiscovered );
#if QT_VERSION < QT_VERSION_CHECK( 6, 0, 0 )
connect( mServiceDiscoveryAgent.get(), qOverload<QBluetoothServiceDiscoveryAgent::Error>( &QBluetoothServiceDiscoveryAgent::error ), this, [=]( QBluetoothServiceDiscoveryAgent::Error error ) {
#else
connect( mServiceDiscoveryAgent.get(), qOverload<QBluetoothServiceDiscoveryAgent::Error>( &QBluetoothServiceDiscoveryAgent::errorOccurred ), this, [=]( QBluetoothServiceDiscoveryAgent::Error error ) {
#endif
if ( error != QBluetoothServiceDiscoveryAgent::NoError )
{
setLastError( mServiceDiscoveryAgent->errorString() );
setScanningStatus( Failed );
}
} );
connect( mServiceDiscoveryAgent.get(), &QBluetoothServiceDiscoveryAgent::finished, [=]() {
setScanningStatus( mServiceDiscoveryAgent->error() == QBluetoothServiceDiscoveryAgent::NoError ? Succeeded : Failed );
} );
connect( mServiceDiscoveryAgent.get(), &QBluetoothServiceDiscoveryAgent::canceled, [=]() {
setScanningStatus( Canceled );
} );
}
void BluetoothDeviceModel::startServiceDiscovery( const bool fullDiscovery )
{
if ( !mServiceDiscoveryAgent )
initiateDiscoveryAgent();
if ( mServiceDiscoveryAgent->isActive() )
mServiceDiscoveryAgent->stop();
mServiceDiscoveryAgent->setUuidFilter( QBluetoothUuid( QBluetoothUuid::ServiceClassUuid::SerialPort ) );
QBluetoothServiceDiscoveryAgent::DiscoveryMode discoveryMode = fullDiscovery ? QBluetoothServiceDiscoveryAgent::FullDiscovery : QBluetoothServiceDiscoveryAgent::MinimalDiscovery;
// set scanning status _prior to_ start as start itself can error and then we get a broken status sequence
setScanningStatus( Scanning );
mServiceDiscoveryAgent->clear();
mServiceDiscoveryAgent->start( discoveryMode );
}
void BluetoothDeviceModel::serviceDiscovered( const QBluetoothServiceInfo &service )
{
//only list the paired devices so the user has control over it.
//but in linux (not android) we list unpaired as well, since it needs to repair them later (or pair them at all).
const QPair<QString, QString> serviceDiscovered = qMakePair( service.device().name(), service.device().address().toString() );
if ( mDiscoveredDevices.contains( serviceDiscovered ) )
return;
beginInsertRows( QModelIndex(), mDiscoveredDevices.size(), mDiscoveredDevices.size() );
#ifdef Q_OS_ANDROID
if ( mLocalDevice->pairingStatus( service.device().address() ) != QBluetoothLocalDevice::Unpaired )
{
mDiscoveredDevices.append( serviceDiscovered );
}
#else
mDiscoveredDevices.append( serviceDiscovered );
#endif
endInsertRows();
}
int BluetoothDeviceModel::findIndexFromAddress( const QString &address ) const
{
for ( int i = 0; i < mDiscoveredDevices.size(); i++ )
{
if ( mDiscoveredDevices.at( i ).second == address )
{
return i;
}
}
return -1;
}
int BluetoothDeviceModel::rowCount( const QModelIndex &parent ) const
{
Q_UNUSED( parent )
return mDiscoveredDevices.size();
}
QVariant BluetoothDeviceModel::data( const QModelIndex &index, int role ) const
{
switch ( role )
{
case Qt::DisplayRole:
return QStringLiteral( "%1%2" ).arg( mDiscoveredDevices.at( index.row() ).first,
index.row() > 0 ? QStringLiteral( " (%2)" ).arg( mDiscoveredDevices.at( index.row() ).second ) : QString() );
break;
case DeviceAddressRole:
return mDiscoveredDevices.at( index.row() ).second;
break;
case DeviceNameRole:
return mDiscoveredDevices.at( index.row() ).first;
break;
}
return QVariant();
}
QHash<int, QByteArray> BluetoothDeviceModel::roleNames() const
{
QHash<int, QByteArray> roles = QAbstractItemModel::roleNames();
roles[DeviceAddressRole] = "deviceAddress";
roles[DeviceNameRole] = "deviceName";
return roles;
}
void BluetoothDeviceModel::setScanningStatus( const BluetoothDeviceModel::ScanningStatus scanningStatus )
{
if ( mScanningStatus == scanningStatus )
return;
qDebug() << "BluetoothDeviceModel: Status of service discovery changed to: " << scanningStatus;
mScanningStatus = scanningStatus;
emit scanningStatusChanged( mScanningStatus );
}
void BluetoothDeviceModel::setLastError( const QString &lastError )
{
qDebug() << "BluetoothDeviceModel: Service discovery error received: " << lastError;
if ( mLastError == lastError )
return;
mLastError = lastError;
emit lastErrorChanged( mLastError );
}
int BluetoothDeviceModel::addDevice( const QString &name, const QString &address )
{
if ( name.isEmpty() || address.isEmpty() )
return -1;
for ( int i = 0; i < mDiscoveredDevices.size(); i++ )
{
if ( mDiscoveredDevices.at( i ).first == name && mDiscoveredDevices.at( i ).second == address )
{
return i;
}
}
int index = mDiscoveredDevices.size();
beginInsertRows( QModelIndex(), index, index );
mDiscoveredDevices << qMakePair( name, address );
endInsertRows();
return index;
}