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<h1 class="title">device.cpp Example File</h1>
<span class="subtitle">btscanner/device.cpp</span>
<!-- $$$btscanner/device.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"><span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "device.h"</span>
<span class="preprocessor">#include "service.h"</span>
<span class="preprocessor">#include <qbluetoothaddress.h></span>
<span class="preprocessor">#include <qbluetoothdevicediscoveryagent.h></span>
<span class="preprocessor">#include <qbluetoothlocaldevice.h></span>
<span class="preprocessor">#include <QMenu></span>
<span class="preprocessor">#include <QDebug></span>
DeviceDiscoveryDialog<span class="operator">::</span>DeviceDiscoveryDialog(<span class="type">QWidget</span> <span class="operator">*</span>parent)
: <span class="type">QDialog</span>(parent)<span class="operator">,</span> localDevice(<span class="keyword">new</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span>)<span class="operator">,</span>
ui(<span class="keyword">new</span> Ui_DeviceDiscovery)
{
ui<span class="operator">-</span><span class="operator">></span>setupUi(<span class="keyword">this</span>);
<span class="comment">/*
* In case of multiple Bluetooth adapters it is possible to set adapter
* which will be used. Example code:
*
* QBluetoothAddress address("XX:XX:XX:XX:XX:XX");
* discoveryAgent = new QBluetoothDeviceDiscoveryAgent(address);
*
**/</span>
discoveryAgent <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span>();
connect(ui<span class="operator">-</span><span class="operator">></span>inquiryType<span class="operator">,</span> SIGNAL(toggled(bool))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(setGeneralUnlimited(bool)));
connect(ui<span class="operator">-</span><span class="operator">></span>scan<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(startScan()));
connect(discoveryAgent<span class="operator">,</span> SIGNAL(deviceDiscovered(<span class="type"><a href="qbluetoothdeviceinfo.html">QBluetoothDeviceInfo</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(addDevice(<span class="type"><a href="qbluetoothdeviceinfo.html">QBluetoothDeviceInfo</a></span>)));
connect(discoveryAgent<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(scanFinished()));
connect(ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">,</span> SIGNAL(itemActivated(<span class="type">QListWidgetItem</span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(itemActivated(<span class="type">QListWidgetItem</span><span class="operator">*</span>)));
connect(localDevice<span class="operator">,</span> SIGNAL(hostModeStateChanged(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostMode))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(hostModeStateChanged(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostMode)));
hostModeStateChanged(localDevice<span class="operator">-</span><span class="operator">></span>hostMode());
<span class="comment">// add context menu for devices to be able to pair device</span>
ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>setContextMenuPolicy(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CustomContextMenu);
connect(ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">,</span> SIGNAL(customContextMenuRequested(<span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(displayPairingMenu(<span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span>)));
connect(localDevice<span class="operator">,</span> SIGNAL(pairingFinished(<span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span><span class="operator">,</span><span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Pairing))
<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(pairingDone(<span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span><span class="operator">,</span><span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Pairing)));
}
DeviceDiscoveryDialog<span class="operator">::</span><span class="operator">~</span>DeviceDiscoveryDialog()
{
<span class="keyword">delete</span> discoveryAgent;
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>addDevice(<span class="keyword">const</span> <span class="type"><a href="qbluetoothdeviceinfo.html">QBluetoothDeviceInfo</a></span> <span class="operator">&</span>info)
{
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> label <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"%1 %2"</span>)<span class="operator">.</span>arg(info<span class="operator">.</span>address()<span class="operator">.</span>toString())<span class="operator">.</span>arg(info<span class="operator">.</span>name());
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type">QListWidgetItem</span> <span class="operator">*</span><span class="operator">></span> items <span class="operator">=</span> ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>findItems(label<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>MatchExactly);
<span class="keyword">if</span> (items<span class="operator">.</span>empty()) {
<span class="type">QListWidgetItem</span> <span class="operator">*</span>item <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QListWidgetItem</span>(label);
<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Pairing pairingStatus <span class="operator">=</span> localDevice<span class="operator">-</span><span class="operator">></span>pairingStatus(info<span class="operator">.</span>address());
<span class="keyword">if</span> (pairingStatus <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Paired <span class="operator">|</span><span class="operator">|</span> pairingStatus <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>AuthorizedPaired )
item<span class="operator">-</span><span class="operator">></span>setTextColor(<span class="type">QColor</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>green));
<span class="keyword">else</span>
item<span class="operator">-</span><span class="operator">></span>setTextColor(<span class="type">QColor</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black));
ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>addItem(item);
}
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>startScan()
{
discoveryAgent<span class="operator">-</span><span class="operator">></span>start();
ui<span class="operator">-</span><span class="operator">></span>scan<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>);
ui<span class="operator">-</span><span class="operator">></span>inquiryType<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>scanFinished()
{
ui<span class="operator">-</span><span class="operator">></span>scan<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>);
ui<span class="operator">-</span><span class="operator">></span>inquiryType<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>setGeneralUnlimited(bool unlimited)
{
<span class="keyword">if</span> (unlimited)
discoveryAgent<span class="operator">-</span><span class="operator">></span>setInquiryType(<span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>GeneralUnlimitedInquiry);
<span class="keyword">else</span>
discoveryAgent<span class="operator">-</span><span class="operator">></span>setInquiryType(<span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>LimitedInquiry);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>itemActivated(<span class="type">QListWidgetItem</span> <span class="operator">*</span>item)
{
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> text <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text();
<span class="type">int</span> index <span class="operator">=</span> text<span class="operator">.</span>indexOf(<span class="char">' '</span>);
<span class="keyword">if</span> (index <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
<span class="keyword">return</span>;
<span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span> address(text<span class="operator">.</span>left(index));
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> name(text<span class="operator">.</span>mid(index <span class="operator">+</span> <span class="number">1</span>));
ServiceDiscoveryDialog d(name<span class="operator">,</span> address);
d<span class="operator">.</span>exec();
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>on_discoverable_clicked(bool clicked)
{
<span class="keyword">if</span> (clicked)
localDevice<span class="operator">-</span><span class="operator">></span>setHostMode(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostDiscoverable);
<span class="keyword">else</span>
localDevice<span class="operator">-</span><span class="operator">></span>setHostMode(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostConnectable);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>on_power_clicked(bool clicked)
{
<span class="keyword">if</span> (clicked)
localDevice<span class="operator">-</span><span class="operator">></span>powerOn();
<span class="keyword">else</span>
localDevice<span class="operator">-</span><span class="operator">></span>setHostMode(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostPoweredOff);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>hostModeStateChanged(<span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostMode mode)
{
<span class="keyword">if</span> (mode <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostPoweredOff)
ui<span class="operator">-</span><span class="operator">></span>power<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
<span class="keyword">else</span>
ui<span class="operator">-</span><span class="operator">></span>power<span class="operator">-</span><span class="operator">></span>setChecked( <span class="keyword">false</span>);
<span class="keyword">if</span> (mode <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostDiscoverable)
ui<span class="operator">-</span><span class="operator">></span>discoverable<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
<span class="keyword">else</span>
ui<span class="operator">-</span><span class="operator">></span>discoverable<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">false</span>);
bool on <span class="operator">=</span> <span class="operator">!</span>(mode <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>HostPoweredOff);
ui<span class="operator">-</span><span class="operator">></span>scan<span class="operator">-</span><span class="operator">></span>setEnabled(on);
ui<span class="operator">-</span><span class="operator">></span>discoverable<span class="operator">-</span><span class="operator">></span>setEnabled(on);
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>displayPairingMenu(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span> <span class="operator">&</span>pos)
{
<span class="type">QMenu</span> menu(<span class="keyword">this</span>);
<span class="type">QAction</span> <span class="operator">*</span>pairAction <span class="operator">=</span> menu<span class="operator">.</span>addAction(<span class="string">"Pair"</span>);
<span class="type">QAction</span> <span class="operator">*</span>removePairAction <span class="operator">=</span> menu<span class="operator">.</span>addAction(<span class="string">"Remove Pairing"</span>);
<span class="type">QAction</span> <span class="operator">*</span>chosenAction <span class="operator">=</span> menu<span class="operator">.</span>exec(ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>viewport()<span class="operator">-</span><span class="operator">></span>mapToGlobal(pos));
<span class="type">QListWidgetItem</span> <span class="operator">*</span>currentItem <span class="operator">=</span> ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>currentItem();
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> text <span class="operator">=</span> currentItem<span class="operator">-</span><span class="operator">></span>text();
<span class="type">int</span> index <span class="operator">=</span> text<span class="operator">.</span>indexOf(<span class="char">' '</span>);
<span class="keyword">if</span> (index <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
<span class="keyword">return</span>;
<span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span> address (text<span class="operator">.</span>left(index));
<span class="keyword">if</span> (chosenAction <span class="operator">=</span><span class="operator">=</span> pairAction) {
localDevice<span class="operator">-</span><span class="operator">></span>requestPairing(address<span class="operator">,</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Paired);
} <span class="keyword">else</span> <span class="keyword">if</span> (chosenAction <span class="operator">=</span><span class="operator">=</span> removePairAction) {
localDevice<span class="operator">-</span><span class="operator">></span>requestPairing(address<span class="operator">,</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Unpaired);
}
}
<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>pairingDone(<span class="keyword">const</span> <span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span> <span class="operator">&</span>address<span class="operator">,</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Pairing pairing)
{
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type">QListWidgetItem</span> <span class="operator">*</span><span class="operator">></span> items <span class="operator">=</span> ui<span class="operator">-</span><span class="operator">></span>list<span class="operator">-</span><span class="operator">></span>findItems(address<span class="operator">.</span>toString()<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>MatchContains);
<span class="keyword">if</span> (pairing <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>Paired <span class="operator">|</span><span class="operator">|</span> pairing <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothlocaldevice.html">QBluetoothLocalDevice</a></span><span class="operator">::</span>AuthorizedPaired ) {
<span class="keyword">for</span> (<span class="type">int</span> var <span class="operator">=</span> <span class="number">0</span>; var <span class="operator"><</span> items<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>var) {
<span class="type">QListWidgetItem</span> <span class="operator">*</span>item <span class="operator">=</span> items<span class="operator">.</span>at(var);
item<span class="operator">-</span><span class="operator">></span>setTextColor(<span class="type">QColor</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>green));
}
} <span class="keyword">else</span> {
<span class="keyword">for</span> (<span class="type">int</span> var <span class="operator">=</span> <span class="number">0</span>; var <span class="operator"><</span> items<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>var) {
<span class="type">QListWidgetItem</span> <span class="operator">*</span>item <span class="operator">=</span> items<span class="operator">.</span>at(var);
item<span class="operator">-</span><span class="operator">></span>setTextColor(<span class="type">QColor</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>red));
}
}
}</pre>
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<!-- @@@btscanner/device.cpp -->
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