<?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>informationwindow.cpp Example File | Qt SQL 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="qtsql-index.html">Qt SQL</a></td><td ><a href="qtsql-drilldown-example.html">Drill Down Example</a></td><td >informationwindow.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtsql-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">informationwindow.cpp Example File</h1> <span class="subtitle">drilldown/informationwindow.cpp</span> <!-- $$$drilldown/informationwindow.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 "informationwindow.h"</span> InformationWindow<span class="operator">::</span>InformationWindow(<span class="type">int</span> id<span class="operator">,</span> <span class="type"><a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a></span> <span class="operator">*</span>items<span class="operator">,</span> <span class="type"><a href="../qtwidgets/qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtwidgets/qdialog.html">QDialog</a></span>(parent) { <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span> <span class="operator">*</span>itemLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span>(tr(<span class="string">"Item: "</span>)); <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span> <span class="operator">*</span>descriptionLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span>(tr(<span class="string">"Description: "</span>)); <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span> <span class="operator">*</span>imageFileLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span>(tr(<span class="string">"Image file: "</span>)); createButtons(); itemText <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span>; descriptionEditor <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtextedit.html">QTextEdit</a></span>; imageFileEditor <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qcombobox.html">QComboBox</a></span>; imageFileEditor<span class="operator">-</span><span class="operator">></span>setModel(items<span class="operator">-</span><span class="operator">></span>relationModel(<span class="number">1</span>)); imageFileEditor<span class="operator">-</span><span class="operator">></span>setModelColumn(items<span class="operator">-</span><span class="operator">></span>relationModel(<span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>fieldIndex(<span class="string">"file"</span>)); mapper <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qdatawidgetmapper.html">QDataWidgetMapper</a></span>(<span class="keyword">this</span>); mapper<span class="operator">-</span><span class="operator">></span>setModel(items); mapper<span class="operator">-</span><span class="operator">></span>setSubmitPolicy(<span class="type"><a href="../qtwidgets/qdatawidgetmapper.html">QDataWidgetMapper</a></span><span class="operator">::</span>ManualSubmit); mapper<span class="operator">-</span><span class="operator">></span>setItemDelegate(<span class="keyword">new</span> <span class="type"><a href="qsqlrelationaldelegate.html">QSqlRelationalDelegate</a></span>(mapper)); mapper<span class="operator">-</span><span class="operator">></span>addMapping(imageFileEditor<span class="operator">,</span> <span class="number">1</span>); mapper<span class="operator">-</span><span class="operator">></span>addMapping(itemText<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="string">"text"</span>); mapper<span class="operator">-</span><span class="operator">></span>addMapping(descriptionEditor<span class="operator">,</span> <span class="number">3</span>); mapper<span class="operator">-</span><span class="operator">></span>setCurrentIndex(id); connect(descriptionEditor<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtwidgets/qtextedit.html">QTextEdit</a></span><span class="operator">::</span>textChanged<span class="operator">,</span> <span class="operator">[</span><span class="operator">=</span><span class="operator">]</span>() { enableButtons(); }); connect(imageFileEditor<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="../qtwidgets/qcombobox.html">QComboBox</a></span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span> <span class="operator">[</span><span class="operator">=</span><span class="operator">]</span>() { enableButtons(); }); <span class="type"><a href="../qtwidgets/qformlayout.html">QFormLayout</a></span> <span class="operator">*</span>formLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qformlayout.html">QFormLayout</a></span>; formLayout<span class="operator">-</span><span class="operator">></span>addRow(itemLabel<span class="operator">,</span> itemText); formLayout<span class="operator">-</span><span class="operator">></span>addRow(imageFileLabel<span class="operator">,</span> imageFileEditor); formLayout<span class="operator">-</span><span class="operator">></span>addRow(descriptionLabel<span class="operator">,</span> descriptionEditor); <span class="type"><a href="../qtwidgets/qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qvboxlayout.html">QVBoxLayout</a></span>; layout<span class="operator">-</span><span class="operator">></span>addLayout(formLayout); layout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox); setLayout(layout); itemId <span class="operator">=</span> id; displayedImage <span class="operator">=</span> imageFileEditor<span class="operator">-</span><span class="operator">></span>currentText(); setWindowFlags(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Window); enableButtons(<span class="keyword">false</span>); setWindowTitle(itemText<span class="operator">-</span><span class="operator">></span>text()); } <span class="type">int</span> InformationWindow<span class="operator">::</span>id() <span class="keyword">const</span> { <span class="keyword">return</span> itemId; } <span class="type">void</span> InformationWindow<span class="operator">::</span>revert() { mapper<span class="operator">-</span><span class="operator">></span>revert(); enableButtons(<span class="keyword">false</span>); } <span class="type">void</span> InformationWindow<span class="operator">::</span>submit() { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> newImage(imageFileEditor<span class="operator">-</span><span class="operator">></span>currentText()); <span class="keyword">if</span> (displayedImage <span class="operator">!</span><span class="operator">=</span> newImage) { displayedImage <span class="operator">=</span> newImage; <span class="keyword">emit</span> imageChanged(itemId<span class="operator">,</span> newImage); } mapper<span class="operator">-</span><span class="operator">></span>submit(); mapper<span class="operator">-</span><span class="operator">></span>setCurrentIndex(itemId); enableButtons(<span class="keyword">false</span>); } <span class="type">void</span> InformationWindow<span class="operator">::</span>createButtons() { closeButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"&Close"</span>)); revertButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"&Revert"</span>)); submitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"&Submit"</span>)); closeButton<span class="operator">-</span><span class="operator">></span>setDefault(<span class="keyword">true</span>); connect(closeButton<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>InformationWindow<span class="operator">::</span>close); connect(revertButton<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>InformationWindow<span class="operator">::</span>revert); connect(submitButton<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>InformationWindow<span class="operator">::</span>submit); buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qdialogbuttonbox.html">QDialogButtonBox</a></span>(<span class="keyword">this</span>); buttonBox<span class="operator">-</span><span class="operator">></span>addButton(submitButton<span class="operator">,</span> <span class="type"><a href="../qtwidgets/qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>AcceptRole); buttonBox<span class="operator">-</span><span class="operator">></span>addButton(revertButton<span class="operator">,</span> <span class="type"><a href="../qtwidgets/qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>ResetRole); buttonBox<span class="operator">-</span><span class="operator">></span>addButton(closeButton<span class="operator">,</span> <span class="type"><a href="../qtwidgets/qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>RejectRole); } <span class="type">void</span> InformationWindow<span class="operator">::</span>enableButtons(bool enable) { revertButton<span class="operator">-</span><span class="operator">></span>setEnabled(enable); submitButton<span class="operator">-</span><span class="operator">></span>setEnabled(enable); } </pre> </div> <!-- @@@drilldown/informationwindow.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>