<?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>window.cpp Example File | Qt Widgets 5.12.6</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 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-itemviews-fetchmore-example.html">Fetch More Example</a></td><td >window.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></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">window.cpp Example File</h1> <span class="subtitle">itemviews/fetchmore/window.cpp</span> <!-- $$$itemviews/fetchmore/window.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 "filelistmodel.h"</span> <span class="preprocessor">#include "window.h"</span> <span class="preprocessor">#include <QtWidgets></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) { FileListModel <span class="operator">*</span>model <span class="operator">=</span> <span class="keyword">new</span> FileListModel(<span class="keyword">this</span>); model<span class="operator">-</span><span class="operator">></span>setDirPath(<span class="type"><a href="../qtcore/qlibraryinfo.html">QLibraryInfo</a></span><span class="operator">::</span>location(<span class="type"><a href="../qtcore/qlibraryinfo.html">QLibraryInfo</a></span><span class="operator">::</span>PrefixPath)); <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>label <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"&Directory:"</span>)); <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>lineEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>; label<span class="operator">-</span><span class="operator">></span>setBuddy(lineEdit); <span class="type"><a href="qlistview.html">QListView</a></span> <span class="operator">*</span>view <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlistview.html">QListView</a></span>; view<span class="operator">-</span><span class="operator">></span>setModel(model); logViewer <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtextbrowser.html">QTextBrowser</a></span>; logViewer<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span>(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Preferred<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Preferred)); connect(lineEdit<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span><span class="operator">::</span>textChanged<span class="operator">,</span> model<span class="operator">,</span> <span class="operator">&</span>FileListModel<span class="operator">::</span>setDirPath); connect(lineEdit<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span><span class="operator">::</span>textChanged<span class="operator">,</span> logViewer<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qtextedit.html">QTextEdit</a></span><span class="operator">::</span>clear); connect(model<span class="operator">,</span> <span class="operator">&</span>FileListModel<span class="operator">::</span>numberPopulated<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Window<span class="operator">::</span>updateLog); <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(label<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(lineEdit<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(view<span class="operator">,</span> <span class="number">1</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(logViewer<span class="operator">,</span> <span class="number">2</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>); setLayout(layout); setWindowTitle(tr(<span class="string">"Fetch More Example"</span>)); } <span class="type">void</span> Window<span class="operator">::</span>updateLog(<span class="type">int</span> number) { logViewer<span class="operator">-</span><span class="operator">></span>append(tr(<span class="string">"%1 items added."</span>)<span class="operator">.</span>arg(number)); } </pre> </div> <!-- @@@itemviews/fetchmore/window.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 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>