<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>mimeimagerecordeditor.cpp Example File | Qt NFC 5.12.6</title>
<link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
<script type="text/javascript">
document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
// loading style sheet breaks anchors that were jumped to before
// so force jumping to anchor again
setTimeout(function() {
var anchor = location.hash;
// need to jump to different anchor first (e.g. none)
location.hash = "#";
setTimeout(function() {
location.hash = anchor;
}, 0);
}, 0);
</script>
</head>
<body>
<div class="header" id="qtdocheader">
<div class="main">
<div class="main-rounded">
<div class="navigationbar">
<table><tr>
<td >Qt 5.12</td><td ><a href="qtnfc-index.html">Qt NFC</a></td><td ><a href="qtnfc-ndefeditor-example.html">NDEF Editor Example</a></td><td >mimeimagerecordeditor.cpp Example File</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtnfc-index.html">Qt 5.12.6 Reference Documentation</a></td>
</tr></table>
</div>
</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">mimeimagerecordeditor.cpp Example File</h1>
<span class="subtitle">ndefeditor/mimeimagerecordeditor.cpp</span>
<!-- $$$ndefeditor/mimeimagerecordeditor.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNfc module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, 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 "mimeimagerecordeditor.h"</span>
<span class="preprocessor">#include "ui_mimeimagerecordeditor.h"</span>
<span class="preprocessor">#include <QtGui/QImageReader></span>
<span class="preprocessor">#include <QtWidgets/QFileDialog></span>
<span class="preprocessor">#include <QtCore/QBuffer></span>
<span class="keyword">static</span> <span class="type">QString</span> imageFormatToMimeType(<span class="keyword">const</span> <span class="type">QByteArray</span> <span class="operator">&</span>format)
{
<span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"bmp"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/bmp"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"gif"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/gif"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"jpg"</span> <span class="operator">|</span><span class="operator">|</span> format <span class="operator">=</span><span class="operator">=</span> <span class="string">"jpeg"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/jpeg"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"mng"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"video/x-mng"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"png"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/png"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"pbm"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/x-portable-bitmap"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"pgm"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/x-portable-graymap"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"ppm"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/x-portable-pixmap"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"tiff"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/tiff"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"xbm"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/x-xbitmap"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"xpm"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/x-xpixmap"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> <span class="string">"svg"</span>)
<span class="keyword">return</span> <span class="type">QStringLiteral</span>(<span class="string">"image/svg+xml"</span>);
<span class="keyword">else</span>
<span class="keyword">return</span> <span class="type">QString</span>();
}
MimeImageRecordEditor<span class="operator">::</span>MimeImageRecordEditor(<span class="type">QWidget</span> <span class="operator">*</span>parent) :
<span class="type">QWidget</span>(parent)<span class="operator">,</span>
ui(<span class="keyword">new</span> Ui<span class="operator">::</span>MimeImageRecordEditor)
{
ui<span class="operator">-</span><span class="operator">></span>setupUi(<span class="keyword">this</span>);
}
MimeImageRecordEditor<span class="operator">::</span><span class="operator">~</span>MimeImageRecordEditor()
{
<span class="keyword">delete</span> ui;
}
<span class="type">void</span> MimeImageRecordEditor<span class="operator">::</span>setRecord(<span class="keyword">const</span> <span class="type"><a href="qndefrecord.html">QNdefRecord</a></span> <span class="operator">&</span>record)
{
m_record <span class="operator">=</span> record;
<span class="type">QByteArray</span> data <span class="operator">=</span> record<span class="operator">.</span>payload();
<span class="type">QBuffer</span> buffer(<span class="operator">&</span>data);
buffer<span class="operator">.</span>open(<span class="type">QIODevice</span><span class="operator">::</span>ReadOnly);
<span class="type">QImageReader</span> reader(<span class="operator">&</span>buffer);
ui<span class="operator">-</span><span class="operator">></span>mimeImageType<span class="operator">-</span><span class="operator">></span>setText(imageFormatToMimeType(reader<span class="operator">.</span>format()));
ui<span class="operator">-</span><span class="operator">></span>mimeImageImage<span class="operator">-</span><span class="operator">></span>setPixmap(<span class="type">QPixmap</span><span class="operator">::</span>fromImage(reader<span class="operator">.</span>read()));
ui<span class="operator">-</span><span class="operator">></span>mimeImageFile<span class="operator">-</span><span class="operator">></span>clear();
}
<span class="type"><a href="qndefrecord.html">QNdefRecord</a></span> MimeImageRecordEditor<span class="operator">::</span>record() <span class="keyword">const</span>
{
<span class="keyword">return</span> m_record;
}
<span class="type">void</span> MimeImageRecordEditor<span class="operator">::</span>on_mimeImageOpen_clicked()
{
<span class="type">QString</span> mimeDataFile <span class="operator">=</span> <span class="type">QFileDialog</span><span class="operator">::</span>getOpenFileName(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Select Image File"</span>));
<span class="keyword">if</span> (mimeDataFile<span class="operator">.</span>isEmpty())
<span class="keyword">return</span>;
<span class="type">QFile</span> imageFile(mimeDataFile);
<span class="keyword">if</span> (<span class="operator">!</span>imageFile<span class="operator">.</span>open(<span class="type">QIODevice</span><span class="operator">::</span>ReadOnly)) {
ui<span class="operator">-</span><span class="operator">></span>mimeImageFile<span class="operator">-</span><span class="operator">></span>clear();
ui<span class="operator">-</span><span class="operator">></span>mimeImageImage<span class="operator">-</span><span class="operator">></span>clear();
}
<span class="type">QByteArray</span> imageData <span class="operator">=</span> imageFile<span class="operator">.</span>readAll();
<span class="type">QBuffer</span> buffer(<span class="operator">&</span>imageData);
buffer<span class="operator">.</span>open(<span class="type">QIODevice</span><span class="operator">::</span>ReadOnly);
<span class="type">QImageReader</span> reader(<span class="operator">&</span>buffer);
<span class="type">QString</span> mimeType <span class="operator">=</span> imageFormatToMimeType(reader<span class="operator">.</span>format());
ui<span class="operator">-</span><span class="operator">></span>mimeImageType<span class="operator">-</span><span class="operator">></span>setText(mimeType);
<span class="type">QImage</span> image <span class="operator">=</span> reader<span class="operator">.</span>read();
ui<span class="operator">-</span><span class="operator">></span>mimeImageFile<span class="operator">-</span><span class="operator">></span>setText(mimeDataFile);
ui<span class="operator">-</span><span class="operator">></span>mimeImageImage<span class="operator">-</span><span class="operator">></span>setPixmap(<span class="type">QPixmap</span><span class="operator">::</span>fromImage(image));
m_record<span class="operator">.</span>setTypeNameFormat(<span class="type"><a href="qndefrecord.html">QNdefRecord</a></span><span class="operator">::</span>Mime);
m_record<span class="operator">.</span>setType(mimeType<span class="operator">.</span>toLatin1());
m_record<span class="operator">.</span>setPayload(imageData);
}
</pre>
</div>
<!-- @@@ndefeditor/mimeimagerecordeditor.cpp -->
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. </p>
</div>
</body>
</html>
