352 lines
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HTML
352 lines
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<h1 class="title">contenttab.cpp Example File</h1>
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<span class="small-subtitle">demos/embedded/desktopservices/contenttab.cpp</span>
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<!-- $$$demos/embedded/desktopservices/contenttab.cpp-description -->
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<div class="descr"> <a name="details"></a>
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<pre class="cpp"> <span class="comment">/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/</span>
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<span class="comment">// EXTERNAL INCLUDES</span>
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<span class="preprocessor">#include <QKeyEvent></span>
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<span class="preprocessor">#include <QMessageBox></span>
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<span class="preprocessor">#include <QListWidget></span>
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<span class="preprocessor">#include <QVBoxLayout></span>
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<span class="preprocessor">#include <QFileInfoList></span>
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<span class="preprocessor">#include <QListWidgetItem></span>
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<span class="comment">// INTERNAL INCLUDES</span>
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<span class="comment">// CLASS HEADER</span>
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<span class="preprocessor">#include "contenttab.h"</span>
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<span class="comment">// CONSTRUCTORS & DESTRUCTORS</span>
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ContentTab<span class="operator">::</span>ContentTab(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) :
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<span class="type"><a href="qlistwidget.html">QListWidget</a></span>(parent)
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{
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setDragEnabled(<span class="keyword">false</span>);
|
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setIconSize(<span class="type"><a href="qsize.html">QSize</a></span>(<span class="number">45</span><span class="operator">,</span> <span class="number">45</span>));
|
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}
|
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|
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ContentTab<span class="operator">::</span><span class="operator">~</span>ContentTab()
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{
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}
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<span class="comment">// NEW PUBLIC METHODS</span>
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<span class="type">void</span> ContentTab<span class="operator">::</span>init(<span class="keyword">const</span> <span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>StandardLocation <span class="operator">&</span>location<span class="operator">,</span>
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<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>filter<span class="operator">,</span>
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<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>icon)
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{
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setContentDir(location);
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<span class="type"><a href="qstringlist.html">QStringList</a></span> filterList;
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filterList <span class="operator">=</span> filter<span class="operator">.</span>split(<span class="string">";"</span>);
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m_ContentDir<span class="operator">.</span>setNameFilters(filterList);
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setIcon(icon);
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connect(<span class="keyword">this</span><span class="operator">,</span> SIGNAL(itemClicked(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
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<span class="keyword">this</span><span class="operator">,</span> SLOT(openItem(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span><span class="operator">*</span>)));
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populateListWidget();
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}
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<span class="comment">// NEW PROTECTED METHODS</span>
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<span class="type">void</span> ContentTab<span class="operator">::</span>setContentDir(<span class="keyword">const</span> <span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>StandardLocation <span class="operator">&</span>location)
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{
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m_ContentDir<span class="operator">.</span>setPath(<span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>storageLocation(location));
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}
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<span class="type">void</span> ContentTab<span class="operator">::</span>setIcon(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>icon)
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{
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m_Icon <span class="operator">=</span> <span class="type"><a href="qicon.html">QIcon</a></span>(icon);
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}
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<span class="type">void</span> ContentTab<span class="operator">::</span>populateListWidget()
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{
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<span class="type"><a href="qfileinfo.html#QFileInfoList-typedef">QFileInfoList</a></span> fileList <span class="operator">=</span> m_ContentDir<span class="operator">.</span>entryInfoList(<span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>Files<span class="operator">,</span> <span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>Time);
|
|
foreach(<span class="type"><a href="qfileinfo.html">QFileInfo</a></span> item<span class="operator">,</span> fileList) {
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<span class="keyword">new</span> <span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span>(m_Icon<span class="operator">,</span> itemName(item)<span class="operator">,</span> <span class="keyword">this</span>);
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}
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}
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<span class="type"><a href="qstring.html">QString</a></span> ContentTab<span class="operator">::</span>itemName(<span class="keyword">const</span> <span class="type"><a href="qfileinfo.html">QFileInfo</a></span> <span class="operator">&</span>item)
|
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{
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<span class="keyword">return</span> <span class="type"><a href="qstring.html">QString</a></span>(item<span class="operator">.</span>baseName() <span class="operator">+</span> <span class="string">"."</span> <span class="operator">+</span> item<span class="operator">.</span>completeSuffix());
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}
|
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|
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<span class="type"><a href="qurl.html">QUrl</a></span> ContentTab<span class="operator">::</span>itemUrl(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span> <span class="operator">*</span>item)
|
|
{
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|
<span class="keyword">return</span> <span class="type"><a href="qurl.html">QUrl</a></span>(<span class="string">"file:///"</span> <span class="operator">+</span> m_ContentDir<span class="operator">.</span>absolutePath() <span class="operator">+</span> <span class="string">"/"</span> <span class="operator">+</span> item<span class="operator">-</span><span class="operator">></span>text());
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}
|
|
|
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<span class="type">void</span> ContentTab<span class="operator">::</span>keyPressEvent(<span class="type"><a href="qkeyevent.html">QKeyEvent</a></span> <span class="operator">*</span>event)
|
|
{
|
|
<span class="keyword">switch</span> (event<span class="operator">-</span><span class="operator">></span>key()) {
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Select:
|
|
openItem(currentItem());
|
|
<span class="keyword">default</span>:
|
|
<span class="type"><a href="qlistwidget.html">QListWidget</a></span><span class="operator">::</span>keyPressEvent(event);
|
|
<span class="keyword">break</span>;
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> ContentTab<span class="operator">::</span>handleErrorInOpen(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span> <span class="operator">*</span>item)
|
|
{
|
|
Q_UNUSED(item);
|
|
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Operation Failed"</span>)<span class="operator">,</span> tr(<span class="string">"Unknown error!"</span>)<span class="operator">,</span> <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>Close);
|
|
}
|
|
|
|
<span class="comment">// NEW SLOTS</span>
|
|
<span class="type">void</span> ContentTab<span class="operator">::</span>openItem(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span> <span class="operator">*</span>item)
|
|
{
|
|
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) && defined(Q_CC_NOKIAX86)</span>
|
|
<span class="comment">// Opening music files doesn't work in Symbian emulator and in some SDKs freezes the</span>
|
|
<span class="comment">// emulator entirely, so prevent it.</span>
|
|
<span class="type"><a href="qstringlist.html">QStringList</a></span> nameFilters <span class="operator">=</span> m_ContentDir<span class="operator">.</span>nameFilters();
|
|
<span class="keyword">if</span> (nameFilters<span class="operator">.</span>contains(<span class="string">"*.mp3"</span>)) {
|
|
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Operation Failed"</span>)<span class="operator">,</span> tr(<span class="string">"Action not supported in emulator."</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>Close);
|
|
} <span class="keyword">else</span>
|
|
<span class="preprocessor">#endif</span>
|
|
{
|
|
<span class="type">bool</span> ret <span class="operator">=</span> <span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>openUrl(itemUrl(item));
|
|
<span class="keyword">if</span> (<span class="operator">!</span>ret)
|
|
handleErrorInOpen(item);
|
|
}
|
|
}
|
|
|
|
<span class="comment">// End of File</span></pre>
|
|
</div>
|
|
<!-- @@@demos/embedded/desktopservices/contenttab.cpp -->
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<span></span>
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<div class="footer">
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<p>
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<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
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Documentation contributions included herein are the copyrights of
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their respective owners.</p>
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<br />
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<p>
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The documentation provided herein is licensed under the terms of the
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<a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation
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License version 1.3</a> as published by the Free Software Foundation.</p>
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<p>
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Documentation sources may be obtained from <a href="http://www.qt-project.org">
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www.qt-project.org</a>.</p>
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