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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">findfiledialog.cpp Example File</h1> <span class="small-subtitle">help/simpletextviewer/findfiledialog.cpp</span> <!-- $$$help/simpletextviewer/findfiledialog.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: ** ** "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 <QtCore/QDir></span> <span class="preprocessor">#include <QtGui/QLayout></span> <span class="preprocessor">#include <QtGui/QComboBox></span> <span class="preprocessor">#include <QtGui/QTreeWidget></span> <span class="preprocessor">#include <QtGui/QLayout></span> <span class="preprocessor">#include <QtGui/QFileDialog></span> <span class="preprocessor">#include <QtGui/QDialogButtonBox></span> <span class="preprocessor">#include <QtGui/QToolButton></span> <span class="preprocessor">#include <QtGui/QPushButton></span> <span class="preprocessor">#include <QtGui/QLabel></span> <span class="preprocessor">#include "findfiledialog.h"</span> <span class="preprocessor">#include "assistant.h"</span> <span class="preprocessor">#include "textedit.h"</span> FindFileDialog<span class="operator">::</span>FindFileDialog(TextEdit <span class="operator">*</span>editor<span class="operator">,</span> Assistant <span class="operator">*</span>assistant) : <span class="type"><a href="qdialog.html">QDialog</a></span>(editor) { currentAssistant <span class="operator">=</span> assistant; currentEditor <span class="operator">=</span> editor; createButtons(); createComboBoxes(); createFilesTree(); createLabels(); createLayout(); directoryComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(<span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>currentPath())); fileNameComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"*"</span>); findFiles(); setWindowTitle(tr(<span class="string">"Find File"</span>)); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>browse() { <span class="type"><a href="qstring.html">QString</a></span> currentDirectory <span class="operator">=</span> directoryComboBox<span class="operator">-</span><span class="operator">></span>currentText(); <span class="type"><a href="qstring.html">QString</a></span> newDirectory <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">"Select Directory"</span>)<span class="operator">,</span> currentDirectory); <span class="keyword">if</span> (<span class="operator">!</span>newDirectory<span class="operator">.</span>isEmpty()) { directoryComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(newDirectory)); directoryComboBox<span class="operator">-</span><span class="operator">></span>setCurrentIndex(directoryComboBox<span class="operator">-</span><span class="operator">></span>count() <span class="operator">-</span> <span class="number">1</span>); update(); } } <span class="type">void</span> FindFileDialog<span class="operator">::</span>help() { currentAssistant<span class="operator">-</span><span class="operator">></span>showDocumentation(<span class="string">"filedialog.html"</span>); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>openFile(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item) { <span class="keyword">if</span> (<span class="operator">!</span>item) { item <span class="operator">=</span> foundFilesTree<span class="operator">-</span><span class="operator">></span>currentItem(); <span class="keyword">if</span> (<span class="operator">!</span>item) <span class="keyword">return</span>; } <span class="type"><a href="qstring.html">QString</a></span> fileName <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>); <span class="type"><a href="qstring.html">QString</a></span> path <span class="operator">=</span> directoryComboBox<span class="operator">-</span><span class="operator">></span>currentText() <span class="operator">+</span> <span class="type"><a href="qdir.html">QDir</a></span><span class="operator">::</span>separator(); currentEditor<span class="operator">-</span><span class="operator">></span>setContents(path <span class="operator">+</span> fileName); close(); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>update() { findFiles(); buttonBox<span class="operator">-</span><span class="operator">></span>button(<span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Open)<span class="operator">-</span><span class="operator">></span>setEnabled( foundFilesTree<span class="operator">-</span><span class="operator">></span>topLevelItemCount() <span class="operator">></span> <span class="number">0</span>); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>findFiles() { <span class="type"><a href="qregexp.html">QRegExp</a></span> filePattern(fileNameComboBox<span class="operator">-</span><span class="operator">></span>currentText() <span class="operator">+</span> <span class="string">"*"</span>); filePattern<span class="operator">.</span>setPatternSyntax(<span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>Wildcard); <span class="type"><a href="qdir.html">QDir</a></span> directory(directoryComboBox<span class="operator">-</span><span class="operator">></span>currentText()); <span class="type"><a href="qstringlist.html">QStringList</a></span> allFiles <span class="operator">=</span> directory<span class="operator">.</span>entryList(<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="type"><a href="qstringlist.html">QStringList</a></span> matchingFiles; foreach (<span class="type"><a href="qstring.html">QString</a></span> file<span class="operator">,</span> allFiles) { <span class="keyword">if</span> (filePattern<span class="operator">.</span>exactMatch(file)) matchingFiles <span class="operator"><</span><span class="operator"><</span> file; } showFiles(matchingFiles); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>showFiles(<span class="keyword">const</span> <span class="type"><a href="qstringlist.html">QStringList</a></span> <span class="operator">&</span>files) { foundFilesTree<span class="operator">-</span><span class="operator">></span>clear(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> files<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(foundFilesTree); item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> files<span class="operator">[</span>i<span class="operator">]</span>); } <span class="keyword">if</span> (files<span class="operator">.</span>count() <span class="operator">></span> <span class="number">0</span>) foundFilesTree<span class="operator">-</span><span class="operator">></span>setCurrentItem(foundFilesTree<span class="operator">-</span><span class="operator">></span>topLevelItem(<span class="number">0</span>)); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>createButtons() { browseButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; browseButton<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"..."</span>)); connect(browseButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(browse())); buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span>(<span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Open <span class="operator">|</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Cancel <span class="operator">|</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Help); connect(buttonBox<span class="operator">,</span> SIGNAL(accepted())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(openFile())); connect(buttonBox<span class="operator">,</span> SIGNAL(rejected())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(reject())); connect(buttonBox<span class="operator">,</span> SIGNAL(helpRequested())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(help())); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>createComboBoxes() { directoryComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; fileNameComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; fileNameComboBox<span class="operator">-</span><span class="operator">></span>setEditable(<span class="keyword">true</span>); fileNameComboBox<span class="operator">-</span><span class="operator">></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); directoryComboBox<span class="operator">-</span><span class="operator">></span>setMinimumContentsLength(<span class="number">30</span>); directoryComboBox<span class="operator">-</span><span class="operator">></span>setSizeAdjustPolicy( <span class="type"><a href="qcombobox.html">QComboBox</a></span><span class="operator">::</span>AdjustToMinimumContentsLength); directoryComboBox<span class="operator">-</span><span class="operator">></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); connect(fileNameComboBox<span class="operator">,</span> SIGNAL(editTextChanged(<span class="type"><a href="qstring.html">QString</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(update())); connect(directoryComboBox<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type"><a href="qstring.html">QString</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(update())); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>createFilesTree() { foundFilesTree <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidget.html">QTreeWidget</a></span>; foundFilesTree<span class="operator">-</span><span class="operator">></span>setColumnCount(<span class="number">1</span>); foundFilesTree<span class="operator">-</span><span class="operator">></span>setHeaderLabels(<span class="type"><a href="qstringlist.html">QStringList</a></span>(tr(<span class="string">"Matching Files"</span>))); foundFilesTree<span class="operator">-</span><span class="operator">></span>setRootIsDecorated(<span class="keyword">false</span>); foundFilesTree<span class="operator">-</span><span class="operator">></span>setSelectionMode(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SingleSelection); connect(foundFilesTree<span class="operator">,</span> SIGNAL(itemActivated(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(openFile(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span>))); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>createLabels() { directoryLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Search in:"</span>)); fileNameLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"File name (including wildcards):"</span>)); } <span class="type">void</span> FindFileDialog<span class="operator">::</span>createLayout() { <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>fileLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>; fileLayout<span class="operator">-</span><span class="operator">></span>addWidget(fileNameLabel); fileLayout<span class="operator">-</span><span class="operator">></span>addWidget(fileNameComboBox); <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>directoryLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>; directoryLayout<span class="operator">-</span><span class="operator">></span>addWidget(directoryLabel); directoryLayout<span class="operator">-</span><span class="operator">></span>addWidget(directoryComboBox); directoryLayout<span class="operator">-</span><span class="operator">></span>addWidget(browseButton); <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>; mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(fileLayout); mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(directoryLayout); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(foundFilesTree); mainLayout<span class="operator">-</span><span class="operator">></span>addStretch(); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox); setLayout(mainLayout); }</pre> </div> <!-- @@@help/simpletextviewer/findfiledialog.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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