device.cpp Example File
btscanner/device.cpp
#include "device.h"
#include "service.h"
#include <qbluetoothaddress.h>
#include <qbluetoothdevicediscoveryagent.h>
#include <qbluetoothlocaldevice.h>
#include <QMenu>
#include <QDebug>
DeviceDiscoveryDialog::DeviceDiscoveryDialog(QWidget *parent)
: QDialog(parent), localDevice(new QBluetoothLocalDevice),
ui(new Ui_DeviceDiscovery)
{
ui->setupUi(this);
discoveryAgent = new QBluetoothDeviceDiscoveryAgent();
connect(ui->inquiryType, SIGNAL(toggled(bool)), this, SLOT(setGeneralUnlimited(bool)));
connect(ui->scan, SIGNAL(clicked()), this, SLOT(startScan()));
connect(discoveryAgent, SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
this, SLOT(addDevice(QBluetoothDeviceInfo)));
connect(discoveryAgent, SIGNAL(finished()), this, SLOT(scanFinished()));
connect(ui->list, SIGNAL(itemActivated(QListWidgetItem*)),
this, SLOT(itemActivated(QListWidgetItem*)));
connect(localDevice, SIGNAL(hostModeStateChanged(QBluetoothLocalDevice::HostMode)),
this, SLOT(hostModeStateChanged(QBluetoothLocalDevice::HostMode)));
hostModeStateChanged(localDevice->hostMode());
ui->list->setContextMenuPolicy(Qt::CustomContextMenu);
connect(ui->list, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(displayPairingMenu(QPoint)));
connect(localDevice, SIGNAL(pairingFinished(QBluetoothAddress,QBluetoothLocalDevice::Pairing))
, this, SLOT(pairingDone(QBluetoothAddress,QBluetoothLocalDevice::Pairing)));
}
DeviceDiscoveryDialog::~DeviceDiscoveryDialog()
{
delete discoveryAgent;
}
void DeviceDiscoveryDialog::addDevice(const QBluetoothDeviceInfo &info)
{
QString label = QString("%1 %2").arg(info.address().toString()).arg(info.name());
QList<QListWidgetItem *> items = ui->list->findItems(label, Qt::MatchExactly);
if (items.empty()) {
QListWidgetItem *item = new QListWidgetItem(label);
QBluetoothLocalDevice::Pairing pairingStatus = localDevice->pairingStatus(info.address());
if (pairingStatus == QBluetoothLocalDevice::Paired || pairingStatus == QBluetoothLocalDevice::AuthorizedPaired )
item->setTextColor(QColor(Qt::green));
else
item->setTextColor(QColor(Qt::black));
ui->list->addItem(item);
}
}
void DeviceDiscoveryDialog::startScan()
{
discoveryAgent->start();
ui->scan->setEnabled(false);
ui->inquiryType->setEnabled(false);
}
void DeviceDiscoveryDialog::scanFinished()
{
ui->scan->setEnabled(true);
ui->inquiryType->setEnabled(true);
}
void DeviceDiscoveryDialog::setGeneralUnlimited(bool unlimited)
{
if (unlimited)
discoveryAgent->setInquiryType(QBluetoothDeviceDiscoveryAgent::GeneralUnlimitedInquiry);
else
discoveryAgent->setInquiryType(QBluetoothDeviceDiscoveryAgent::LimitedInquiry);
}
void DeviceDiscoveryDialog::itemActivated(QListWidgetItem *item)
{
QString text = item->text();
int index = text.indexOf(' ');
if (index == -1)
return;
QBluetoothAddress address(text.left(index));
QString name(text.mid(index + 1));
ServiceDiscoveryDialog d(name, address);
d.exec();
}
void DeviceDiscoveryDialog::on_discoverable_clicked(bool clicked)
{
if (clicked)
localDevice->setHostMode(QBluetoothLocalDevice::HostDiscoverable);
else
localDevice->setHostMode(QBluetoothLocalDevice::HostConnectable);
}
void DeviceDiscoveryDialog::on_power_clicked(bool clicked)
{
if (clicked)
localDevice->powerOn();
else
localDevice->setHostMode(QBluetoothLocalDevice::HostPoweredOff);
}
void DeviceDiscoveryDialog::hostModeStateChanged(QBluetoothLocalDevice::HostMode mode)
{
if (mode != QBluetoothLocalDevice::HostPoweredOff)
ui->power->setChecked(true);
else
ui->power->setChecked( false);
if (mode == QBluetoothLocalDevice::HostDiscoverable)
ui->discoverable->setChecked(true);
else
ui->discoverable->setChecked(false);
bool on = !(mode == QBluetoothLocalDevice::HostPoweredOff);
ui->scan->setEnabled(on);
ui->discoverable->setEnabled(on);
}
void DeviceDiscoveryDialog::displayPairingMenu(const QPoint &pos)
{
if (ui->list->count() == 0)
return;
QMenu menu(this);
QAction *pairAction = menu.addAction("Pair");
QAction *removePairAction = menu.addAction("Remove Pairing");
QAction *chosenAction = menu.exec(ui->list->viewport()->mapToGlobal(pos));
QListWidgetItem *currentItem = ui->list->currentItem();
QString text = currentItem->text();
int index = text.indexOf(' ');
if (index == -1)
return;
QBluetoothAddress address (text.left(index));
if (chosenAction == pairAction) {
localDevice->requestPairing(address, QBluetoothLocalDevice::Paired);
} else if (chosenAction == removePairAction) {
localDevice->requestPairing(address, QBluetoothLocalDevice::Unpaired);
}
}
void DeviceDiscoveryDialog::pairingDone(const QBluetoothAddress &address, QBluetoothLocalDevice::Pairing pairing)
{
QList<QListWidgetItem *> items = ui->list->findItems(address.toString(), Qt::MatchContains);
if (pairing == QBluetoothLocalDevice::Paired || pairing == QBluetoothLocalDevice::AuthorizedPaired ) {
for (int var = 0; var < items.count(); ++var) {
QListWidgetItem *item = items.at(var);
item->setTextColor(QColor(Qt::green));
}
} else {
for (int var = 0; var < items.count(); ++var) {
QListWidgetItem *item = items.at(var);
item->setTextColor(QColor(Qt::red));
}
}
}