<?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>dropsitewindow.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-draganddrop-dropsite-example.html">Drop Site Example</a></td><td >dropsitewindow.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">dropsitewindow.cpp Example File</h1> <span class="subtitle">draganddrop/dropsite/dropsitewindow.cpp</span> <!-- $$$draganddrop/dropsite/dropsitewindow.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 "droparea.h"</span> <span class="preprocessor">#include "dropsitewindow.h"</span> DropSiteWindow<span class="operator">::</span>DropSiteWindow() { abstractLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"This example accepts drags from other "</span> <span class="string">"applications and displays the MIME types "</span> <span class="string">"provided by the drag object."</span>)); abstractLabel<span class="operator">-</span><span class="operator">></span>setWordWrap(<span class="keyword">true</span>); abstractLabel<span class="operator">-</span><span class="operator">></span>adjustSize(); dropArea <span class="operator">=</span> <span class="keyword">new</span> DropArea; connect(dropArea<span class="operator">,</span> <span class="operator">&</span>DropArea<span class="operator">::</span>changed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>DropSiteWindow<span class="operator">::</span>updateFormatsTable); <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> labels; labels <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Format"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Content"</span>); formatsTable <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>; formatsTable<span class="operator">-</span><span class="operator">></span>setColumnCount(<span class="number">2</span>); formatsTable<span class="operator">-</span><span class="operator">></span>setEditTriggers(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoEditTriggers); formatsTable<span class="operator">-</span><span class="operator">></span>setHorizontalHeaderLabels(labels); formatsTable<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setStretchLastSection(<span class="keyword">true</span>); clearButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"Clear"</span>)); quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"Quit"</span>)); buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span>; buttonBox<span class="operator">-</span><span class="operator">></span>addButton(clearButton<span class="operator">,</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>ActionRole); buttonBox<span class="operator">-</span><span class="operator">></span>addButton(quitButton<span class="operator">,</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>RejectRole); connect(quitButton<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">::</span>pressed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>close); connect(clearButton<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">::</span>pressed<span class="operator">,</span> dropArea<span class="operator">,</span> <span class="operator">&</span>DropArea<span class="operator">::</span>clear); <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(<span class="keyword">this</span>); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(abstractLabel); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(dropArea); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(formatsTable); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox); setWindowTitle(tr(<span class="string">"Drop Site"</span>)); setMinimumSize(<span class="number">350</span><span class="operator">,</span> <span class="number">500</span>); } <span class="type">void</span> DropSiteWindow<span class="operator">::</span>updateFormatsTable(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmimedata.html">QMimeData</a></span> <span class="operator">*</span>mimeData) { formatsTable<span class="operator">-</span><span class="operator">></span>setRowCount(<span class="number">0</span>); <span class="keyword">if</span> (<span class="operator">!</span>mimeData) <span class="keyword">return</span>; foreach (<span class="type"><a href="../qtcore/qstring.html">QString</a></span> format<span class="operator">,</span> mimeData<span class="operator">-</span><span class="operator">></span>formats()) { <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>formatItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(format); formatItem<span class="operator">-</span><span class="operator">></span>setFlags(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEnabled); formatItem<span class="operator">-</span><span class="operator">></span>setTextAlignment(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignTop <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignLeft); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> text; <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"text/plain"</span>)) { text <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">></span>text()<span class="operator">.</span>simplified(); } <span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"text/html"</span>)) { text <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">></span>html()<span class="operator">.</span>simplified(); } <span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"text/uri-list"</span>)) { <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qurl.html">QUrl</a></span><span class="operator">></span> urlList <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">></span>urls(); <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> urlList<span class="operator">.</span>size() <span class="operator">&</span><span class="operator">&</span> i <span class="operator"><</span> <span class="number">32</span>; <span class="operator">+</span><span class="operator">+</span>i) text<span class="operator">.</span>append(urlList<span class="operator">.</span>at(i)<span class="operator">.</span>toString() <span class="operator">+</span> QLatin1Char(<span class="char">' '</span>)); } <span class="keyword">else</span> { <span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span> data <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">></span>data(format); <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> data<span class="operator">.</span>size() <span class="operator">&</span><span class="operator">&</span> i <span class="operator"><</span> <span class="number">32</span>; <span class="operator">+</span><span class="operator">+</span>i) text<span class="operator">.</span>append(<span class="type"><a href="../qtcore/qstring.html#QStringLiteral">QStringLiteral</a></span>(<span class="string">"%1 "</span>)<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qtglobal.html#uchar-typedef">uchar</a></span>(data<span class="operator">[</span>i<span class="operator">]</span>)<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">16</span><span class="operator">,</span> QLatin1Char(<span class="char">'0'</span>))<span class="operator">.</span>toUpper()); } <span class="type">int</span> row <span class="operator">=</span> formatsTable<span class="operator">-</span><span class="operator">></span>rowCount(); formatsTable<span class="operator">-</span><span class="operator">></span>insertRow(row); formatsTable<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(format)); formatsTable<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(text)); } formatsTable<span class="operator">-</span><span class="operator">></span>resizeColumnToContents(<span class="number">0</span>); } </pre> </div> <!-- @@@draganddrop/dropsite/dropsitewindow.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>