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<h1 class="title">window.cpp Example File</h1>
<span class="small-subtitle">dialogs/findfiles/window.cpp</span>
<!-- $$$dialogs/findfiles/window.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 examples 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 &lt;QtGui&gt;</span>
<span class="preprocessor">#include &quot;window.h&quot;</span>
Window<span class="operator">::</span>Window(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qwidget.html">QWidget</a></span>(parent)
{
browseButton <span class="operator">=</span> createButton(tr(<span class="string">&quot;&amp;Browse...&quot;</span>)<span class="operator">,</span> SLOT(browse()));
findButton <span class="operator">=</span> createButton(tr(<span class="string">&quot;&amp;Find&quot;</span>)<span class="operator">,</span> SLOT(find()));
fileComboBox <span class="operator">=</span> createComboBox(tr(<span class="string">&quot;*&quot;</span>));
textComboBox <span class="operator">=</span> createComboBox();
directoryComboBox <span class="operator">=</span> createComboBox(<span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>currentPath());
fileLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;Named:&quot;</span>));
textLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;Containing text:&quot;</span>));
directoryLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;In directory:&quot;</span>));
filesFoundLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>;
createFilesTable();
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>setSizeConstraint(<span class="type"><a href="qlayout.html">QLayout</a></span><span class="operator">::</span>SetNoConstraint);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(fileLabel<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(fileComboBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(textLabel<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(textComboBox<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(directoryLabel<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(directoryComboBox<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(browseButton<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(filesTable<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(filesFoundLabel<span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(findButton<span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">2</span>);
setLayout(mainLayout);
setWindowTitle(tr(<span class="string">&quot;Find Files&quot;</span>));
<span class="preprocessor">#if !defined(Q_OS_SYMBIAN) &amp;&amp; !defined(Q_WS_MAEMO_5) &amp;&amp; !defined(Q_WS_SIMULATOR)</span>
resize(<span class="number">700</span><span class="operator">,</span> <span class="number">300</span>);
<span class="preprocessor">#endif</span>
}
<span class="type">void</span> Window<span class="operator">::</span>browse()
{
<span class="type"><a href="qstring.html">QString</a></span> directory <span class="operator">=</span> <span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>getExistingDirectory(<span class="keyword">this</span><span class="operator">,</span>
tr(<span class="string">&quot;Find Files&quot;</span>)<span class="operator">,</span> <span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>currentPath());
<span class="keyword">if</span> (<span class="operator">!</span>directory<span class="operator">.</span>isEmpty()) {
<span class="keyword">if</span> (directoryComboBox<span class="operator">-</span><span class="operator">&gt;</span>findText(directory) <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
directoryComboBox<span class="operator">-</span><span class="operator">&gt;</span>addItem(directory);
directoryComboBox<span class="operator">-</span><span class="operator">&gt;</span>setCurrentIndex(directoryComboBox<span class="operator">-</span><span class="operator">&gt;</span>findText(directory));
}
}
<span class="keyword">static</span> <span class="type">void</span> updateComboBox(<span class="type"><a href="qcombobox.html">QComboBox</a></span> <span class="operator">*</span>comboBox)
{
<span class="keyword">if</span> (comboBox<span class="operator">-</span><span class="operator">&gt;</span>findText(comboBox<span class="operator">-</span><span class="operator">&gt;</span>currentText()) <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
comboBox<span class="operator">-</span><span class="operator">&gt;</span>addItem(comboBox<span class="operator">-</span><span class="operator">&gt;</span>currentText());
}
<span class="type">void</span> Window<span class="operator">::</span>find()
{
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setRowCount(<span class="number">0</span>);
<span class="type"><a href="qstring.html">QString</a></span> fileName <span class="operator">=</span> fileComboBox<span class="operator">-</span><span class="operator">&gt;</span>currentText();
<span class="type"><a href="qstring.html">QString</a></span> text <span class="operator">=</span> textComboBox<span class="operator">-</span><span class="operator">&gt;</span>currentText();
<span class="type"><a href="qstring.html">QString</a></span> path <span class="operator">=</span> directoryComboBox<span class="operator">-</span><span class="operator">&gt;</span>currentText();
updateComboBox(fileComboBox);
updateComboBox(textComboBox);
updateComboBox(directoryComboBox);
currentDir <span class="operator">=</span> <span class="type"><a href="qdir.html">QDir</a></span>(path);
<span class="type"><a href="qstringlist.html">QStringList</a></span> files;
<span class="keyword">if</span> (fileName<span class="operator">.</span>isEmpty())
fileName <span class="operator">=</span> <span class="string">&quot;*&quot;</span>;
files <span class="operator">=</span> currentDir<span class="operator">.</span>entryList(<span class="type"><a href="qstringlist.html">QStringList</a></span>(fileName)<span class="operator">,</span>
<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>NoSymLinks);
<span class="keyword">if</span> (<span class="operator">!</span>text<span class="operator">.</span>isEmpty())
files <span class="operator">=</span> findFiles(files<span class="operator">,</span> text);
showFiles(files);
}
<span class="type"><a href="qstringlist.html">QStringList</a></span> Window<span class="operator">::</span>findFiles(<span class="keyword">const</span> <span class="type"><a href="qstringlist.html">QStringList</a></span> <span class="operator">&amp;</span>files<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>text)
{
<span class="type"><a href="qprogressdialog.html">QProgressDialog</a></span> progressDialog(<span class="keyword">this</span>);
progressDialog<span class="operator">.</span>setCancelButtonText(tr(<span class="string">&quot;&amp;Cancel&quot;</span>));
progressDialog<span class="operator">.</span>setRange(<span class="number">0</span><span class="operator">,</span> files<span class="operator">.</span>size());
progressDialog<span class="operator">.</span>setWindowTitle(tr(<span class="string">&quot;Find Files&quot;</span>));
<span class="type"><a href="qstringlist.html">QStringList</a></span> foundFiles;
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> files<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
progressDialog<span class="operator">.</span>setValue(i);
progressDialog<span class="operator">.</span>setLabelText(tr(<span class="string">&quot;Searching file number %1 of %2...&quot;</span>)
<span class="operator">.</span>arg(i)<span class="operator">.</span>arg(files<span class="operator">.</span>size()));
qApp<span class="operator">-</span><span class="operator">&gt;</span>processEvents();
<span class="keyword">if</span> (progressDialog<span class="operator">.</span>wasCanceled())
<span class="keyword">break</span>;
<span class="type"><a href="qfile.html">QFile</a></span> file(currentDir<span class="operator">.</span>absoluteFilePath(files<span class="operator">[</span>i<span class="operator">]</span>));
<span class="keyword">if</span> (file<span class="operator">.</span>open(<span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly)) {
<span class="type"><a href="qstring.html">QString</a></span> line;
<span class="type"><a href="qtextstream.html">QTextStream</a></span> in(<span class="operator">&amp;</span>file);
<span class="keyword">while</span> (<span class="operator">!</span>in<span class="operator">.</span>atEnd()) {
<span class="keyword">if</span> (progressDialog<span class="operator">.</span>wasCanceled())
<span class="keyword">break</span>;
line <span class="operator">=</span> in<span class="operator">.</span>readLine();
<span class="keyword">if</span> (line<span class="operator">.</span>contains(text)) {
foundFiles <span class="operator">&lt;</span><span class="operator">&lt;</span> files<span class="operator">[</span>i<span class="operator">]</span>;
<span class="keyword">break</span>;
}
}
}
}
<span class="keyword">return</span> foundFiles;
}
<span class="type">void</span> Window<span class="operator">::</span>showFiles(<span class="keyword">const</span> <span class="type"><a href="qstringlist.html">QStringList</a></span> <span class="operator">&amp;</span>files)
{
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> files<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="type"><a href="qfile.html">QFile</a></span> file(currentDir<span class="operator">.</span>absoluteFilePath(files<span class="operator">[</span>i<span class="operator">]</span>));
<span class="type"><a href="qtglobal.html#qint64-typedef">qint64</a></span> size <span class="operator">=</span> <span class="type"><a href="qfileinfo.html">QFileInfo</a></span>(file)<span class="operator">.</span>size();
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>fileNameItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(files<span class="operator">[</span>i<span class="operator">]</span>);
fileNameItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(fileNameItem<span class="operator">-</span><span class="operator">&gt;</span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>sizeItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(tr(<span class="string">&quot;%1 KB&quot;</span>)
<span class="operator">.</span>arg(<span class="type">int</span>((size <span class="operator">+</span> <span class="number">1023</span>) <span class="operator">/</span> <span class="number">1024</span>)));
sizeItem<span class="operator">-</span><span class="operator">&gt;</span>setTextAlignment(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignRight <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignVCenter);
sizeItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(sizeItem<span class="operator">-</span><span class="operator">&gt;</span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
<span class="type">int</span> row <span class="operator">=</span> filesTable<span class="operator">-</span><span class="operator">&gt;</span>rowCount();
filesTable<span class="operator">-</span><span class="operator">&gt;</span>insertRow(row);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setItem(row<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> fileNameItem);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setItem(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> sizeItem);
}
filesFoundLabel<span class="operator">-</span><span class="operator">&gt;</span>setText(tr(<span class="string">&quot;%1 file(s) found&quot;</span>)<span class="operator">.</span>arg(files<span class="operator">.</span>size()) <span class="operator">+</span>
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_WS_MAEMO_5)</span>
(<span class="string">&quot; (Select file to open it)&quot;</span>));
<span class="preprocessor">#else</span>
(<span class="string">&quot; (Double click on a file to open it)&quot;</span>));
<span class="preprocessor">#endif</span>
filesFoundLabel<span class="operator">-</span><span class="operator">&gt;</span>setWordWrap(<span class="keyword">true</span>);
}
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>Window<span class="operator">::</span>createButton(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>text<span class="operator">,</span> <span class="keyword">const</span> <span class="type">char</span> <span class="operator">*</span>member)
{
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>button <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(text);
connect(button<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> member);
<span class="keyword">return</span> button;
}
<span class="type"><a href="qcombobox.html">QComboBox</a></span> <span class="operator">*</span>Window<span class="operator">::</span>createComboBox(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>text)
{
<span class="type"><a href="qcombobox.html">QComboBox</a></span> <span class="operator">*</span>comboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
comboBox<span class="operator">-</span><span class="operator">&gt;</span>setEditable(<span class="keyword">true</span>);
comboBox<span class="operator">-</span><span class="operator">&gt;</span>addItem(text);
comboBox<span class="operator">-</span><span class="operator">&gt;</span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Preferred);
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_WS_MAEMO_5) || defined(Q_WS_SIMULATOR)</span>
comboBox<span class="operator">-</span><span class="operator">&gt;</span>setMinimumContentsLength(<span class="number">3</span>);
<span class="preprocessor">#endif</span>
<span class="keyword">return</span> comboBox;
}
<span class="type">void</span> Window<span class="operator">::</span>createFilesTable()
{
filesTable <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">2</span>);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setSelectionBehavior(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SelectRows);
<span class="type"><a href="qstringlist.html">QStringList</a></span> labels;
labels <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Filename&quot;</span>) <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Size&quot;</span>);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setHorizontalHeaderLabels(labels);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>horizontalHeader()<span class="operator">-</span><span class="operator">&gt;</span>setResizeMode(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qheaderview.html">QHeaderView</a></span><span class="operator">::</span>Stretch);
filesTable<span class="operator">-</span><span class="operator">&gt;</span>verticalHeader()<span class="operator">-</span><span class="operator">&gt;</span>hide();
filesTable<span class="operator">-</span><span class="operator">&gt;</span>setShowGrid(<span class="keyword">false</span>);
connect(filesTable<span class="operator">,</span> SIGNAL(cellActivated(<span class="type">int</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(openFileOfItem(<span class="type">int</span><span class="operator">,</span><span class="type">int</span>)));
}
<span class="type">void</span> Window<span class="operator">::</span>openFileOfItem(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> <span class="comment">/* column */</span>)
{
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> filesTable<span class="operator">-</span><span class="operator">&gt;</span>item(row<span class="operator">,</span> <span class="number">0</span>);
<span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>openUrl(<span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>fromLocalFile(currentDir<span class="operator">.</span>absoluteFilePath(item<span class="operator">-</span><span class="operator">&gt;</span>text())));
}</pre>
</div>
<!-- @@@dialogs/findfiles/window.cpp -->
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