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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:
**
** &quot;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
** &quot;AS IS&quot; 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.&quot;
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>

<span class="preprocessor">#include &quot;device.h&quot;</span>
<span class="preprocessor">#include &quot;service.h&quot;</span>

<span class="preprocessor">#include &lt;qbluetoothaddress.h&gt;</span>
<span class="preprocessor">#include &lt;qbluetoothdevicediscoveryagent.h&gt;</span>
<span class="preprocessor">#include &lt;qbluetoothlocaldevice.h&gt;</span>
<span class="preprocessor">#include &lt;QMenu&gt;</span>
<span class="preprocessor">#include &lt;QDebug&gt;</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">&gt;</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(&quot;XX:XX:XX:XX:XX:XX&quot;);
     * 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">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&amp;</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">&quot;%1 %2&quot;</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">&lt;</span><span class="type">QListWidgetItem</span> <span class="operator">*</span><span class="operator">&gt;</span> items <span class="operator">=</span> ui<span class="operator">-</span><span class="operator">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</span>addItem(item);
    }

}

<span class="type">void</span> DeviceDiscoveryDialog<span class="operator">::</span>startScan()
{
    discoveryAgent<span class="operator">-</span><span class="operator">&gt;</span>start();
    ui<span class="operator">-</span><span class="operator">&gt;</span>scan<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
    ui<span class="operator">-</span><span class="operator">&gt;</span>inquiryType<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>scan<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
    ui<span class="operator">-</span><span class="operator">&gt;</span>inquiryType<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</span>powerOn();
    <span class="keyword">else</span>
        localDevice<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>power<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">true</span>);
    <span class="keyword">else</span>
       ui<span class="operator">-</span><span class="operator">&gt;</span>power<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>discoverable<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">true</span>);
    <span class="keyword">else</span>
        ui<span class="operator">-</span><span class="operator">&gt;</span>discoverable<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>scan<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(on);
    ui<span class="operator">-</span><span class="operator">&gt;</span>discoverable<span class="operator">-</span><span class="operator">&gt;</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">&amp;</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">&quot;Pair&quot;</span>);
    <span class="type">QAction</span> <span class="operator">*</span>removePairAction <span class="operator">=</span> menu<span class="operator">.</span>addAction(<span class="string">&quot;Remove Pairing&quot;</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">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</span>viewport()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&amp;</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">&lt;</span><span class="type">QListWidgetItem</span> <span class="operator">*</span><span class="operator">&gt;</span> items <span class="operator">=</span> ui<span class="operator">-</span><span class="operator">&gt;</span>list<span class="operator">-</span><span class="operator">&gt;</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">&lt;</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">&gt;</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">&lt;</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">&gt;</span>setTextColor(<span class="type">QColor</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>red));
        }
    }
}</pre>
</div>
<!-- @@@btscanner/device.cpp -->
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