<?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>spreadsheetdelegate.cpp Example File | Qt Widgets 5.11</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 ><a href="../qtdoc/index.html">Qt 5.11</a></td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-itemviews-spreadsheet-example.html">Spreadsheet</a></td><td >spreadsheetdelegate.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.11.2 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">spreadsheetdelegate.cpp Example File</h1> <span class="subtitle">itemviews/spreadsheet/spreadsheetdelegate.cpp</span> <!-- $$$itemviews/spreadsheet/spreadsheetdelegate.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 demonstration applications 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 "spreadsheetdelegate.h"</span> <span class="preprocessor">#include <QtWidgets></span> SpreadSheetDelegate<span class="operator">::</span>SpreadSheetDelegate(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qitemdelegate.html">QItemDelegate</a></span>(parent) {} <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>SpreadSheetDelegate<span class="operator">::</span>createEditor(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstyleoptionviewitem.html">QStyleOptionViewItem</a></span> <span class="operator">&</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index) <span class="keyword">const</span> { <span class="keyword">if</span> (index<span class="operator">.</span>column() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>) { <span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span> <span class="operator">*</span>editor <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span>(parent); editor<span class="operator">-</span><span class="operator">></span>setDisplayFormat(<span class="string">"dd/M/yyyy"</span>); editor<span class="operator">-</span><span class="operator">></span>setCalendarPopup(<span class="keyword">true</span>); <span class="keyword">return</span> editor; } <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>editor <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>(parent); <span class="comment">// create a completer with the strings in the column as model</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> allStrings; <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">1</span>; i<span class="operator"><</span>index<span class="operator">.</span>model()<span class="operator">-</span><span class="operator">></span>rowCount(); i<span class="operator">+</span><span class="operator">+</span>) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> strItem(index<span class="operator">.</span>model()<span class="operator">-</span><span class="operator">></span>data(index<span class="operator">.</span>sibling(i<span class="operator">,</span> index<span class="operator">.</span>column())<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole)<span class="operator">.</span>toString()); <span class="keyword">if</span> (<span class="operator">!</span>allStrings<span class="operator">.</span>contains(strItem)) allStrings<span class="operator">.</span>append(strItem); } <span class="type"><a href="qcompleter.html">QCompleter</a></span> <span class="operator">*</span>autoComplete <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcompleter.html">QCompleter</a></span>(allStrings); editor<span class="operator">-</span><span class="operator">></span>setCompleter(autoComplete); connect(editor<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span><span class="operator">::</span>editingFinished<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>SpreadSheetDelegate<span class="operator">::</span>commitAndCloseEditor); <span class="keyword">return</span> editor; } <span class="type">void</span> SpreadSheetDelegate<span class="operator">::</span>commitAndCloseEditor() { <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>editor <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span><span class="operator">></span>(sender()); <span class="keyword">emit</span> commitData(editor); <span class="keyword">emit</span> closeEditor(editor); } <span class="type">void</span> SpreadSheetDelegate<span class="operator">::</span>setEditorData(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>editor<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index) <span class="keyword">const</span> { <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>edit <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span><span class="operator">*</span><span class="operator">></span>(editor); <span class="keyword">if</span> (edit) { edit<span class="operator">-</span><span class="operator">></span>setText(index<span class="operator">.</span>model()<span class="operator">-</span><span class="operator">></span>data(index<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole)<span class="operator">.</span>toString()); <span class="keyword">return</span>; } <span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span> <span class="operator">*</span>dateEditor <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span> <span class="operator">*</span><span class="operator">></span>(editor); <span class="keyword">if</span> (dateEditor) { dateEditor<span class="operator">-</span><span class="operator">></span>setDate(<span class="type"><a href="../qtcore/qdate.html">QDate</a></span><span class="operator">::</span>fromString( index<span class="operator">.</span>model()<span class="operator">-</span><span class="operator">></span>data(index<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole)<span class="operator">.</span>toString()<span class="operator">,</span> <span class="string">"d/M/yyyy"</span>)); } } <span class="type">void</span> SpreadSheetDelegate<span class="operator">::</span>setModelData(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>editor<span class="operator">,</span> <span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>model<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index) <span class="keyword">const</span> { <span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>edit <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span><span class="operator">></span>(editor); <span class="keyword">if</span> (edit) { model<span class="operator">-</span><span class="operator">></span>setData(index<span class="operator">,</span> edit<span class="operator">-</span><span class="operator">></span>text()); <span class="keyword">return</span>; } <span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span> <span class="operator">*</span>dateEditor <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qdatetimeedit.html">QDateTimeEdit</a></span> <span class="operator">*</span><span class="operator">></span>(editor); <span class="keyword">if</span> (dateEditor) model<span class="operator">-</span><span class="operator">></span>setData(index<span class="operator">,</span> dateEditor<span class="operator">-</span><span class="operator">></span>date()<span class="operator">.</span>toString(<span class="string">"dd/M/yyyy"</span>)); } </pre> </div> <!-- @@@itemviews/spreadsheet/spreadsheetdelegate.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2018 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>