<?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>mainwindow.cpp Example File | Qt Widgets 5.9</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 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-tools-treemodelcompleter-example.html">Tree Model Completer Example</a></td><td >mainwindow.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</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">mainwindow.cpp Example File</h1> <span class="subtitle">tools/treemodelcompleter/mainwindow.cpp</span> <!-- $$$tools/treemodelcompleter/mainwindow.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. ** ** ** 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 <QtWidgets></span> <span class="preprocessor">#include "treemodelcompleter.h"</span> <span class="preprocessor">#include "mainwindow.h"</span> MainWindow<span class="operator">::</span>MainWindow(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>(parent)<span class="operator">,</span> completer(<span class="number">0</span>)<span class="operator">,</span> lineEdit(<span class="number">0</span>) { createMenu(); completer <span class="operator">=</span> <span class="keyword">new</span> TreeModelCompleter(<span class="keyword">this</span>); completer<span class="operator">-</span><span class="operator">></span>setModel(modelFromFile(<span class="string">":/resources/treemodel.txt"</span>)); completer<span class="operator">-</span><span class="operator">></span>setSeparator(QLatin1String(<span class="string">"."</span>)); <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>connect(completer<span class="operator">,</span> SIGNAL(highlighted(<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(highlight(<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>))); <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>centralWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>; <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>modelLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; modelLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Tree Model<br>(Double click items to edit)"</span>)); <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>modeLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; modeLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Completion Mode"</span>)); modeCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; modeCombo<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Inline"</span>)); modeCombo<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Filtered Popup"</span>)); modeCombo<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Unfiltered Popup"</span>)); modeCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">1</span>); <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>caseLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; caseLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Case Sensitivity"</span>)); caseCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; caseCombo<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Case Insensitive"</span>)); caseCombo<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Case Sensitive"</span>)); caseCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">0</span>); <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>separatorLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; separatorLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Tree Separator"</span>)); <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>separatorLineEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>; separatorLineEdit<span class="operator">-</span><span class="operator">></span>setText(completer<span class="operator">-</span><span class="operator">></span>separator()); connect(separatorLineEdit<span class="operator">,</span> SIGNAL(textChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span> completer<span class="operator">,</span> SLOT(setSeparator(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))); <span class="type"><a href="qcheckbox.html">QCheckBox</a></span> <span class="operator">*</span>wrapCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcheckbox.html">QCheckBox</a></span>; wrapCheckBox<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Wrap around completions"</span>)); wrapCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(completer<span class="operator">-</span><span class="operator">></span>wrapAround()); connect(wrapCheckBox<span class="operator">,</span> SIGNAL(clicked(bool))<span class="operator">,</span> completer<span class="operator">,</span> SLOT(setWrapAround(bool))); contentsLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; contentsLabel<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Fixed<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Fixed); connect(separatorLineEdit<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(updateContentsLabel(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))); treeView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreeview.html">QTreeView</a></span>; treeView<span class="operator">-</span><span class="operator">></span>setModel(completer<span class="operator">-</span><span class="operator">></span>model()); treeView<span class="operator">-</span><span class="operator">></span>header()<span class="operator">-</span><span class="operator">></span>hide(); treeView<span class="operator">-</span><span class="operator">></span>expandAll(); connect(modeCombo<span class="operator">,</span> SIGNAL(activated(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(changeMode(<span class="type">int</span>))); connect(caseCombo<span class="operator">,</span> SIGNAL(activated(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(changeCase(<span class="type">int</span>))); lineEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>; lineEdit<span class="operator">-</span><span class="operator">></span>setCompleter(completer); <span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>; layout<span class="operator">-</span><span class="operator">></span>addWidget(modelLabel<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(treeView<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(modeLabel<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(modeCombo<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(caseLabel<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(caseCombo<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(separatorLabel<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(separatorLineEdit<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">1</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(wrapCheckBox<span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">0</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(contentsLabel<span class="operator">,</span> <span class="number">5</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>); layout<span class="operator">-</span><span class="operator">></span>addWidget(lineEdit<span class="operator">,</span> <span class="number">6</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>); centralWidget<span class="operator">-</span><span class="operator">></span>setLayout(layout); setCentralWidget(centralWidget); changeCase(caseCombo<span class="operator">-</span><span class="operator">></span>currentIndex()); changeMode(modeCombo<span class="operator">-</span><span class="operator">></span>currentIndex()); setWindowTitle(tr(<span class="string">"Tree Model Completer"</span>)); lineEdit<span class="operator">-</span><span class="operator">></span>setFocus(); } <span class="type">void</span> MainWindow<span class="operator">::</span>createMenu() { <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>exitAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Exit"</span>)<span class="operator">,</span> <span class="keyword">this</span>); <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>aboutAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"About"</span>)<span class="operator">,</span> <span class="keyword">this</span>); <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>aboutQtAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"About Qt"</span>)<span class="operator">,</span> <span class="keyword">this</span>); connect(exitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit())); connect(aboutAct<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(about())); connect(aboutQtAct<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(aboutQt())); <span class="type"><a href="qmenu.html">QMenu</a></span><span class="operator">*</span> fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"File"</span>)); fileMenu<span class="operator">-</span><span class="operator">></span>addAction(exitAction); <span class="type"><a href="qmenu.html">QMenu</a></span><span class="operator">*</span> helpMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"About"</span>)); helpMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutAct); helpMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutQtAct); } <span class="type">void</span> MainWindow<span class="operator">::</span>changeMode(<span class="type">int</span> index) { <span class="type"><a href="qcompleter.html">QCompleter</a></span><span class="operator">::</span>CompletionMode mode; <span class="keyword">if</span> (index <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) mode <span class="operator">=</span> <span class="type"><a href="qcompleter.html">QCompleter</a></span><span class="operator">::</span>InlineCompletion; <span class="keyword">else</span> <span class="keyword">if</span> (index <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>) mode <span class="operator">=</span> <span class="type"><a href="qcompleter.html">QCompleter</a></span><span class="operator">::</span>PopupCompletion; <span class="keyword">else</span> mode <span class="operator">=</span> <span class="type"><a href="qcompleter.html">QCompleter</a></span><span class="operator">::</span>UnfilteredPopupCompletion; completer<span class="operator">-</span><span class="operator">></span>setCompletionMode(mode); } <span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>modelFromFile(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">&</span> fileName) { <span class="type"><a href="../qtcore/qfile.html">QFile</a></span> file(fileName); <span class="keyword">if</span> (<span class="operator">!</span>file<span class="operator">.</span>open(<span class="type"><a href="../qtcore/qfile.html">QFile</a></span><span class="operator">::</span>ReadOnly)) <span class="keyword">return</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstringlistmodel.html">QStringListModel</a></span>(completer); <span class="preprocessor">#ifndef QT_NO_CURSOR</span> <span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>setOverrideCursor(<span class="type"><a href="../qtgui/qcursor.html">QCursor</a></span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>WaitCursor)); <span class="preprocessor">#endif</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> words; <span class="type"><a href="../qtgui/qstandarditemmodel.html">QStandardItemModel</a></span> <span class="operator">*</span>model <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtgui/qstandarditemmodel.html">QStandardItemModel</a></span>(completer); <span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="../qtgui/qstandarditem.html">QStandardItem</a></span> <span class="operator">*</span><span class="operator">></span> parents(<span class="number">10</span>); parents<span class="operator">[</span><span class="number">0</span><span class="operator">]</span> <span class="operator">=</span> model<span class="operator">-</span><span class="operator">></span>invisibleRootItem(); <span class="keyword">while</span> (<span class="operator">!</span>file<span class="operator">.</span>atEnd()) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> line <span class="operator">=</span> file<span class="operator">.</span>readLine(); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> trimmedLine <span class="operator">=</span> line<span class="operator">.</span>trimmed(); <span class="keyword">if</span> (line<span class="operator">.</span>isEmpty() <span class="operator">|</span><span class="operator">|</span> trimmedLine<span class="operator">.</span>isEmpty()) <span class="keyword">continue</span>; <span class="type"><a href="../qtcore/qregularexpression.html">QRegularExpression</a></span> re(<span class="string">"^\\s+"</span>); <span class="type"><a href="../qtcore/qregularexpressionmatch.html">QRegularExpressionMatch</a></span> match <span class="operator">=</span> re<span class="operator">.</span>match(line); <span class="type">int</span> nonws <span class="operator">=</span> match<span class="operator">.</span>capturedStart(); <span class="type">int</span> level <span class="operator">=</span> <span class="number">0</span>; <span class="keyword">if</span> (nonws <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) { level <span class="operator">=</span> <span class="number">0</span>; } <span class="keyword">else</span> { <span class="keyword">if</span> (line<span class="operator">.</span>startsWith(<span class="string">"\t"</span>)) { level <span class="operator">=</span> match<span class="operator">.</span>capturedLength(); } <span class="keyword">else</span> { level <span class="operator">=</span> match<span class="operator">.</span>capturedLength()<span class="operator">/</span><span class="number">4</span>; } } <span class="keyword">if</span> (level<span class="operator">+</span><span class="number">1</span> <span class="operator">></span><span class="operator">=</span> parents<span class="operator">.</span>size()) parents<span class="operator">.</span>resize(parents<span class="operator">.</span>size()<span class="operator">*</span><span class="number">2</span>); <span class="type"><a href="../qtgui/qstandarditem.html">QStandardItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtgui/qstandarditem.html">QStandardItem</a></span>; item<span class="operator">-</span><span class="operator">></span>setText(trimmedLine); parents<span class="operator">[</span>level<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>appendRow(item); parents<span class="operator">[</span>level<span class="operator">+</span><span class="number">1</span><span class="operator">]</span> <span class="operator">=</span> item; } <span class="preprocessor">#ifndef QT_NO_CURSOR</span> <span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>restoreOverrideCursor(); <span class="preprocessor">#endif</span> <span class="keyword">return</span> model; } <span class="type">void</span> MainWindow<span class="operator">::</span>highlight(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index) { <span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>completionModel <span class="operator">=</span> completer<span class="operator">-</span><span class="operator">></span>completionModel(); <span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span> <span class="operator">*</span>proxy <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span> <span class="operator">*</span><span class="operator">></span>(completionModel); <span class="keyword">if</span> (<span class="operator">!</span>proxy) <span class="keyword">return</span>; <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> sourceIndex <span class="operator">=</span> proxy<span class="operator">-</span><span class="operator">></span>mapToSource(index); treeView<span class="operator">-</span><span class="operator">></span>selectionModel()<span class="operator">-</span><span class="operator">></span>select(sourceIndex<span class="operator">,</span> <span class="type"><a href="../qtcore/qitemselectionmodel.html">QItemSelectionModel</a></span><span class="operator">::</span>ClearAndSelect <span class="operator">|</span> <span class="type"><a href="../qtcore/qitemselectionmodel.html">QItemSelectionModel</a></span><span class="operator">::</span>Rows); treeView<span class="operator">-</span><span class="operator">></span>scrollTo(index); } <span class="type">void</span> MainWindow<span class="operator">::</span>about() { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>about(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"About"</span>)<span class="operator">,</span> tr(<span class="string">"This example demonstrates how "</span> <span class="string">"to use a QCompleter with a custom tree model."</span>)); } <span class="type">void</span> MainWindow<span class="operator">::</span>changeCase(<span class="type">int</span> cs) { completer<span class="operator">-</span><span class="operator">></span>setCaseSensitivity(cs <span class="operator">?</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseSensitive : <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive); } <span class="type">void</span> MainWindow<span class="operator">::</span>updateContentsLabel(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">&</span> sep) { contentsLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Type path from model above with items at each level separated by a '%1'"</span>)<span class="operator">.</span>arg(sep)); } </pre> </div> <!-- @@@tools/treemodelcompleter/mainwindow.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 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>