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<h1 class="title">addtorrentdialog.cpp Example File</h1>
<span class="subtitle">torrent/addtorrentdialog.cpp</span>
<!-- $$$torrent/addtorrentdialog.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples 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.
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**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** $QT_END_LICENSE$
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****************************************************************************/</span>
<span class="preprocessor">#include "addtorrentdialog.h"</span>
<span class="preprocessor">#include "metainfo.h"</span>
<span class="preprocessor">#include <QFile></span>
<span class="preprocessor">#include <QFileDialog></span>
<span class="preprocessor">#include <QLineEdit></span>
<span class="preprocessor">#include <QMetaObject></span>
<span class="keyword">static</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> stringNumber(<span class="type"><a href="../qtcore/qtglobal.html#qint64-typedef">qint64</a></span> number)
{
<span class="keyword">if</span> (number <span class="operator">></span> (<span class="number">1024</span> <span class="operator">*</span> <span class="number">1024</span> <span class="operator">*</span> <span class="number">1024</span>))
<span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">::</span>asprintf(<span class="string">"%.2fGB"</span><span class="operator">,</span> number <span class="operator">/</span> (<span class="number">1024.0</span> <span class="operator">*</span> <span class="number">1024.0</span> <span class="operator">*</span> <span class="number">1024.0</span>));
<span class="keyword">else</span> <span class="keyword">if</span> (number <span class="operator">></span> (<span class="number">1024</span> <span class="operator">*</span> <span class="number">1024</span>))
<span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">::</span>asprintf(<span class="string">"%.2fMB"</span><span class="operator">,</span> number <span class="operator">/</span> (<span class="number">1024.0</span> <span class="operator">*</span> <span class="number">1024.0</span>));
<span class="keyword">else</span> <span class="keyword">if</span> (number <span class="operator">></span> (<span class="number">1024</span>))
<span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">::</span>asprintf(<span class="string">"%.2fKB"</span><span class="operator">,</span> number <span class="operator">/</span> (<span class="number">1024.0</span>));
<span class="keyword">else</span>
<span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">::</span>asprintf(<span class="string">"%d bytes"</span><span class="operator">,</span> <span class="type">int</span>(number));
}
AddTorrentDialog<span class="operator">::</span>AddTorrentDialog(<span class="type">QWidget</span> <span class="operator">*</span>parent)
: <span class="type">QDialog</span>(parent<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Sheet)
{
ui<span class="operator">.</span>setupUi(<span class="keyword">this</span>);
connect(ui<span class="operator">.</span>browseTorrents<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(selectTorrent()));
connect(ui<span class="operator">.</span>browseDestination<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(selectDestination()));
connect(ui<span class="operator">.</span>torrentFile<span class="operator">,</span> SIGNAL(textChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(setTorrent(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));
ui<span class="operator">.</span>destinationFolder<span class="operator">-</span><span class="operator">></span>setText(destinationDirectory <span class="operator">=</span> <span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>current()<span class="operator">.</span>path());
ui<span class="operator">.</span>torrentFile<span class="operator">-</span><span class="operator">></span>setFocus();
}
<span class="type">void</span> AddTorrentDialog<span class="operator">::</span>selectTorrent()
{
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> fileName <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">"Choose a torrent file"</span>)<span class="operator">,</span>
lastDirectory<span class="operator">,</span>
tr(<span class="string">"Torrents (*.torrent);; All files (*.*)"</span>));
<span class="keyword">if</span> (fileName<span class="operator">.</span>isEmpty())
<span class="keyword">return</span>;
lastDirectory <span class="operator">=</span> <span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span>(fileName)<span class="operator">.</span>absolutePath();
setTorrent(fileName);
}
<span class="type">void</span> AddTorrentDialog<span class="operator">::</span>selectDestination()
{
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> dir <span class="operator">=</span> <span class="type">QFileDialog</span><span class="operator">::</span>getExistingDirectory(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Choose a destination directory"</span>)<span class="operator">,</span>
lastDestinationDirectory);
<span class="keyword">if</span> (dir<span class="operator">.</span>isEmpty())
<span class="keyword">return</span>;
lastDestinationDirectory <span class="operator">=</span> destinationDirectory <span class="operator">=</span> dir;
ui<span class="operator">.</span>destinationFolder<span class="operator">-</span><span class="operator">></span>setText(destinationDirectory);
enableOkButton();
}
<span class="type">void</span> AddTorrentDialog<span class="operator">::</span>enableOkButton()
{
ui<span class="operator">.</span>okButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="operator">!</span>ui<span class="operator">.</span>destinationFolder<span class="operator">-</span><span class="operator">></span>text()<span class="operator">.</span>isEmpty()
<span class="operator">&</span><span class="operator">&</span> <span class="operator">!</span>ui<span class="operator">.</span>torrentFile<span class="operator">-</span><span class="operator">></span>text()<span class="operator">.</span>isEmpty());
}
<span class="type">void</span> AddTorrentDialog<span class="operator">::</span>setTorrent(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>torrentFile)
{
<span class="keyword">if</span> (torrentFile<span class="operator">.</span>isEmpty()) {
enableOkButton();
<span class="keyword">return</span>;
}
ui<span class="operator">.</span>torrentFile<span class="operator">-</span><span class="operator">></span>setText(torrentFile);
<span class="keyword">if</span> (<span class="operator">!</span>torrentFile<span class="operator">.</span>isEmpty())
lastDirectory <span class="operator">=</span> <span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span>(torrentFile)<span class="operator">.</span>absolutePath();
<span class="keyword">if</span> (lastDestinationDirectory<span class="operator">.</span>isEmpty())
lastDestinationDirectory <span class="operator">=</span> lastDirectory;
MetaInfo metaInfo;
<span class="type"><a href="../qtcore/qfile.html">QFile</a></span> torrent(torrentFile);
<span class="keyword">if</span> (<span class="operator">!</span>torrent<span class="operator">.</span>open(<span class="type"><a href="../qtcore/qfile.html">QFile</a></span><span class="operator">::</span>ReadOnly) <span class="operator">|</span><span class="operator">|</span> <span class="operator">!</span>metaInfo<span class="operator">.</span>parse(torrent<span class="operator">.</span>readAll())) {
enableOkButton();
<span class="keyword">return</span>;
}
ui<span class="operator">.</span>torrentFile<span class="operator">-</span><span class="operator">></span>setText(torrentFile);
ui<span class="operator">.</span>announceUrl<span class="operator">-</span><span class="operator">></span>setText(metaInfo<span class="operator">.</span>announceUrl());
<span class="keyword">if</span> (metaInfo<span class="operator">.</span>comment()<span class="operator">.</span>isEmpty())
ui<span class="operator">.</span>commentLabel<span class="operator">-</span><span class="operator">></span>setText(<span class="string">"<unknown>"</span>);
<span class="keyword">else</span>
ui<span class="operator">.</span>commentLabel<span class="operator">-</span><span class="operator">></span>setText(metaInfo<span class="operator">.</span>comment());
<span class="keyword">if</span> (metaInfo<span class="operator">.</span>createdBy()<span class="operator">.</span>isEmpty())
ui<span class="operator">.</span>creatorLabel<span class="operator">-</span><span class="operator">></span>setText(<span class="string">"<unknown>"</span>);
<span class="keyword">else</span>
ui<span class="operator">.</span>creatorLabel<span class="operator">-</span><span class="operator">></span>setText(metaInfo<span class="operator">.</span>createdBy());
ui<span class="operator">.</span>sizeLabel<span class="operator">-</span><span class="operator">></span>setText(stringNumber(metaInfo<span class="operator">.</span>totalSize()));
<span class="keyword">if</span> (metaInfo<span class="operator">.</span>fileForm() <span class="operator">=</span><span class="operator">=</span> MetaInfo<span class="operator">::</span>SingleFileForm) {
ui<span class="operator">.</span>torrentContents<span class="operator">-</span><span class="operator">></span>setHtml(metaInfo<span class="operator">.</span>singleFile()<span class="operator">.</span>name);
} <span class="keyword">else</span> {
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> html;
foreach (MetaInfoMultiFile file<span class="operator">,</span> metaInfo<span class="operator">.</span>multiFiles()) {
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> name <span class="operator">=</span> metaInfo<span class="operator">.</span>name();
<span class="keyword">if</span> (<span class="operator">!</span>name<span class="operator">.</span>isEmpty()) {
html <span class="operator">+</span><span class="operator">=</span> name;
<span class="keyword">if</span> (<span class="operator">!</span>name<span class="operator">.</span>endsWith(<span class="char">'/'</span>))
html <span class="operator">+</span><span class="operator">=</span> <span class="char">'/'</span>;
}
html <span class="operator">+</span><span class="operator">=</span> file<span class="operator">.</span>path <span class="operator">+</span> <span class="string">"<br>"</span>;
}
ui<span class="operator">.</span>torrentContents<span class="operator">-</span><span class="operator">></span>setHtml(html);
}
<span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span> info(torrentFile);
ui<span class="operator">.</span>destinationFolder<span class="operator">-</span><span class="operator">></span>setText(info<span class="operator">.</span>absolutePath());
enableOkButton();
}
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> AddTorrentDialog<span class="operator">::</span>torrentFileName() <span class="keyword">const</span>
{
<span class="keyword">return</span> ui<span class="operator">.</span>torrentFile<span class="operator">-</span><span class="operator">></span>text();
}
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> AddTorrentDialog<span class="operator">::</span>destinationFolder() <span class="keyword">const</span>
{
<span class="keyword">return</span> ui<span class="operator">.</span>destinationFolder<span class="operator">-</span><span class="operator">></span>text();
}
</pre>
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<!-- @@@torrent/addtorrentdialog.cpp -->
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