<?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>addresswidget.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-itemviews-addressbook-example.html">Address Book Example</a></td><td >addresswidget.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">addresswidget.cpp Example File</h1> <span class="subtitle">itemviews/addressbook/addresswidget.cpp</span> <!-- $$$itemviews/addressbook/addresswidget.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 "adddialog.h"</span> <span class="preprocessor">#include "addresswidget.h"</span> <span class="preprocessor">#include <QtWidgets></span> AddressWidget<span class="operator">::</span>AddressWidget(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qtabwidget.html">QTabWidget</a></span>(parent) { table <span class="operator">=</span> <span class="keyword">new</span> TableModel(<span class="keyword">this</span>); newAddressTab <span class="operator">=</span> <span class="keyword">new</span> NewAddressTab(<span class="keyword">this</span>); connect(newAddressTab<span class="operator">,</span> <span class="operator">&</span>NewAddressTab<span class="operator">::</span>sendDetails<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>AddressWidget<span class="operator">::</span>addEntry); addTab(newAddressTab<span class="operator">,</span> <span class="string">"Address Book"</span>); setupTabs(); } <span class="type">void</span> AddressWidget<span class="operator">::</span>showAddEntryDialog() { AddDialog aDialog; <span class="keyword">if</span> (aDialog<span class="operator">.</span>exec()) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> name <span class="operator">=</span> aDialog<span class="operator">.</span>nameText<span class="operator">-</span><span class="operator">></span>text(); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> address <span class="operator">=</span> aDialog<span class="operator">.</span>addressText<span class="operator">-</span><span class="operator">></span>toPlainText(); addEntry(name<span class="operator">,</span> address); } } <span class="type">void</span> AddressWidget<span class="operator">::</span>addEntry(<span class="type"><a href="../qtcore/qstring.html">QString</a></span> name<span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> address) { <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">></span> <span class="operator">></span>list <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>getList(); <span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">></span> pair(name<span class="operator">,</span> address); <span class="keyword">if</span> (<span class="operator">!</span>list<span class="operator">.</span>contains(pair)) { table<span class="operator">-</span><span class="operator">></span>insertRows(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>index(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); table<span class="operator">-</span><span class="operator">></span>setData(index<span class="operator">,</span> name<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole); index <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>index(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); table<span class="operator">-</span><span class="operator">></span>setData(index<span class="operator">,</span> address<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole); removeTab(indexOf(newAddressTab)); } <span class="keyword">else</span> { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Duplicate Name"</span>)<span class="operator">,</span> tr(<span class="string">"The name \"%1\" already exists."</span>)<span class="operator">.</span>arg(name)); } } <span class="type">void</span> AddressWidget<span class="operator">::</span>editEntry() { <span class="type"><a href="qtableview.html">QTableView</a></span> <span class="operator">*</span>temp <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qtableview.html">QTableView</a></span><span class="operator">*</span><span class="operator">></span>(currentWidget()); <span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span> <span class="operator">*</span>proxy <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span><span class="operator">*</span><span class="operator">></span>(temp<span class="operator">-</span><span class="operator">></span>model()); <span class="type"><a href="../qtcore/qitemselectionmodel.html">QItemSelectionModel</a></span> <span class="operator">*</span>selectionModel <span class="operator">=</span> temp<span class="operator">-</span><span class="operator">></span>selectionModel(); <span class="type"><a href="../qtcore/qmodelindex.html#QModelIndexList-typedef">QModelIndexList</a></span> indexes <span class="operator">=</span> selectionModel<span class="operator">-</span><span class="operator">></span>selectedRows(); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> name; <span class="type"><a href="../qtcore/qstring.html">QString</a></span> address; <span class="type">int</span> row <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>; foreach (<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index<span class="operator">,</span> indexes) { row <span class="operator">=</span> proxy<span class="operator">-</span><span class="operator">></span>mapToSource(index)<span class="operator">.</span>row(); <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> nameIndex <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>index(row<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> varName <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>data(nameIndex<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole); name <span class="operator">=</span> varName<span class="operator">.</span>toString(); <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> addressIndex <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>index(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> varAddr <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>data(addressIndex<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole); address <span class="operator">=</span> varAddr<span class="operator">.</span>toString(); } AddDialog aDialog; aDialog<span class="operator">.</span>setWindowTitle(tr(<span class="string">"Edit a Contact"</span>)); aDialog<span class="operator">.</span>nameText<span class="operator">-</span><span class="operator">></span>setReadOnly(<span class="keyword">true</span>); aDialog<span class="operator">.</span>nameText<span class="operator">-</span><span class="operator">></span>setText(name); aDialog<span class="operator">.</span>addressText<span class="operator">-</span><span class="operator">></span>setText(address); <span class="keyword">if</span> (aDialog<span class="operator">.</span>exec()) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> newAddress <span class="operator">=</span> aDialog<span class="operator">.</span>addressText<span class="operator">-</span><span class="operator">></span>toPlainText(); <span class="keyword">if</span> (newAddress <span class="operator">!</span><span class="operator">=</span> address) { <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>index(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); table<span class="operator">-</span><span class="operator">></span>setData(index<span class="operator">,</span> newAddress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>EditRole); } } } <span class="type">void</span> AddressWidget<span class="operator">::</span>removeEntry() { <span class="type"><a href="qtableview.html">QTableView</a></span> <span class="operator">*</span>temp <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qtableview.html">QTableView</a></span><span class="operator">*</span><span class="operator">></span>(currentWidget()); <span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span> <span class="operator">*</span>proxy <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span><span class="operator">*</span><span class="operator">></span>(temp<span class="operator">-</span><span class="operator">></span>model()); <span class="type"><a href="../qtcore/qitemselectionmodel.html">QItemSelectionModel</a></span> <span class="operator">*</span>selectionModel <span class="operator">=</span> temp<span class="operator">-</span><span class="operator">></span>selectionModel(); <span class="type"><a href="../qtcore/qmodelindex.html#QModelIndexList-typedef">QModelIndexList</a></span> indexes <span class="operator">=</span> selectionModel<span class="operator">-</span><span class="operator">></span>selectedRows(); foreach (<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index<span class="operator">,</span> indexes) { <span class="type">int</span> row <span class="operator">=</span> proxy<span class="operator">-</span><span class="operator">></span>mapToSource(index)<span class="operator">.</span>row(); table<span class="operator">-</span><span class="operator">></span>removeRows(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()); } <span class="keyword">if</span> (table<span class="operator">-</span><span class="operator">></span>rowCount(<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) { insertTab(<span class="number">0</span><span class="operator">,</span> newAddressTab<span class="operator">,</span> <span class="string">"Address Book"</span>); } } <span class="type">void</span> AddressWidget<span class="operator">::</span>setupTabs() { <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> groups; groups <span class="operator"><</span><span class="operator"><</span> <span class="string">"ABC"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"DEF"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"GHI"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"JKL"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"MNO"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"PQR"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"STU"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"VW"</span> <span class="operator"><</span><span class="operator"><</span> <span class="string">"XYZ"</span>; <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> groups<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> str <span class="operator">=</span> groups<span class="operator">.</span>at(i); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> regExp <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"^[%1].*"</span>)<span class="operator">.</span>arg(str); proxyModel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span>(<span class="keyword">this</span>); proxyModel<span class="operator">-</span><span class="operator">></span>setSourceModel(table); proxyModel<span class="operator">-</span><span class="operator">></span>setFilterRegExp(<span class="type"><a href="../qtcore/qregexp.html">QRegExp</a></span>(regExp<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive)); proxyModel<span class="operator">-</span><span class="operator">></span>setFilterKeyColumn(<span class="number">0</span>); <span class="type"><a href="qtableview.html">QTableView</a></span> <span class="operator">*</span>tableView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtableview.html">QTableView</a></span>; tableView<span class="operator">-</span><span class="operator">></span>setModel(proxyModel); tableView<span class="operator">-</span><span class="operator">></span>setSelectionBehavior(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SelectRows); tableView<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setStretchLastSection(<span class="keyword">true</span>); tableView<span class="operator">-</span><span class="operator">></span>verticalHeader()<span class="operator">-</span><span class="operator">></span>hide(); tableView<span class="operator">-</span><span class="operator">></span>setEditTriggers(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoEditTriggers); tableView<span class="operator">-</span><span class="operator">></span>setSelectionMode(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SingleSelection); tableView<span class="operator">-</span><span class="operator">></span>setSortingEnabled(<span class="keyword">true</span>); connect(tableView<span class="operator">-</span><span class="operator">></span>selectionModel()<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtcore/qitemselectionmodel.html">QItemSelectionModel</a></span><span class="operator">::</span>selectionChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>AddressWidget<span class="operator">::</span>selectionChanged); addTab(tableView<span class="operator">,</span> str); } } <span class="type">void</span> AddressWidget<span class="operator">::</span>readFromFile(<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/qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly)) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Unable to open file"</span>)<span class="operator">,</span> file<span class="operator">.</span>errorString()); <span class="keyword">return</span>; } <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">></span> <span class="operator">></span> pairs <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>getList(); <span class="type"><a href="../qtcore/qdatastream.html">QDataStream</a></span> in(<span class="operator">&</span>file); in <span class="operator">></span><span class="operator">></span> pairs; <span class="keyword">if</span> (pairs<span class="operator">.</span>isEmpty()) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"No contacts in file"</span>)<span class="operator">,</span> tr(<span class="string">"The file you are attempting to open contains no contacts."</span>)); } <span class="keyword">else</span> { <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>pairs<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">></span> p <span class="operator">=</span> pairs<span class="operator">.</span>at(i); addEntry(p<span class="operator">.</span>first<span class="operator">,</span> p<span class="operator">.</span>second); } } } <span class="type">void</span> AddressWidget<span class="operator">::</span>writeToFile(<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/qiodevice.html">QIODevice</a></span><span class="operator">::</span>WriteOnly)) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Unable to open file"</span>)<span class="operator">,</span> file<span class="operator">.</span>errorString()); <span class="keyword">return</span>; } <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">></span> <span class="operator">></span> pairs <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>getList(); <span class="type"><a href="../qtcore/qdatastream.html">QDataStream</a></span> out(<span class="operator">&</span>file); out <span class="operator"><</span><span class="operator"><</span> pairs; } </pre> </div> <!-- @@@itemviews/addressbook/addresswidget.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>