<?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>xbelhandler.cpp Example File | Qt XML 5.12.2</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="qtxml-index.html">Qt XML</a></td><td ><a href="qtxml-saxbookmarks-example.html">SAX Bookmarks Example</a></td><td >xbelhandler.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtxml-index.html">Qt 5.12.2 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">xbelhandler.cpp Example File</h1> <span class="subtitle">saxbookmarks/xbelhandler.cpp</span> <!-- $$$saxbookmarks/xbelhandler.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 "xbelhandler.h"</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> versionAttribute() { <span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html#QStringLiteral">QStringLiteral</a></span>(<span class="string">"version"</span>); } <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> hrefAttribute() { <span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html#QStringLiteral">QStringLiteral</a></span>(<span class="string">"href"</span>); } <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> foldedAttribute() { <span class="keyword">return</span> <span class="type"><a href="../qtcore/qstring.html#QStringLiteral">QStringLiteral</a></span>(<span class="string">"folded"</span>); } XbelHandler<span class="operator">::</span>XbelHandler(<span class="type"><a href="../qtwidgets/qtreewidget.html">QTreeWidget</a></span> <span class="operator">*</span>treeWidget) : treeWidget(treeWidget) { item <span class="operator">=</span> <span class="number">0</span>; metXbelTag <span class="operator">=</span> <span class="keyword">false</span>; <span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span> <span class="operator">*</span>style <span class="operator">=</span> treeWidget<span class="operator">-</span><span class="operator">></span>style(); folderIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirClosedIcon)<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>Off); folderIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirOpenIcon)<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>On); bookmarkIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_FileIcon)); } bool XbelHandler<span class="operator">::</span>startElement(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span> <span class="comment">/* namespaceURI */</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span> <span class="comment">/* localName */</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>qName<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qxmlattributes.html">QXmlAttributes</a></span> <span class="operator">&</span>attributes) { <span class="keyword">if</span> (<span class="operator">!</span>metXbelTag <span class="operator">&</span><span class="operator">&</span> qName <span class="operator">!</span><span class="operator">=</span> QLatin1String(<span class="string">"xbel"</span>)) { errorStr <span class="operator">=</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"The file is not an XBEL file."</span>); <span class="keyword">return</span> <span class="keyword">false</span>; } <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"xbel"</span>)) { <span class="type"><a href="../qtcore/qstring.html">QString</a></span> version <span class="operator">=</span> attributes<span class="operator">.</span>value(versionAttribute()); <span class="keyword">if</span> (<span class="operator">!</span>version<span class="operator">.</span>isEmpty() <span class="operator">&</span><span class="operator">&</span> version <span class="operator">!</span><span class="operator">=</span> QLatin1String(<span class="string">"1.0"</span>)) { errorStr <span class="operator">=</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"The file is not an XBEL version 1.0 file."</span>); <span class="keyword">return</span> <span class="keyword">false</span>; } metXbelTag <span class="operator">=</span> <span class="keyword">true</span>; } <span class="keyword">else</span> <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"folder"</span>)) { item <span class="operator">=</span> createChildItem(qName); item<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); item<span class="operator">-</span><span class="operator">></span>setIcon(<span class="number">0</span><span class="operator">,</span> folderIcon); item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Folder"</span>)); bool folded <span class="operator">=</span> (attributes<span class="operator">.</span>value(foldedAttribute()) <span class="operator">!</span><span class="operator">=</span> QLatin1String(<span class="string">"no"</span>)); treeWidget<span class="operator">-</span><span class="operator">></span>setItemExpanded(item<span class="operator">,</span> <span class="operator">!</span>folded); } <span class="keyword">else</span> <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"bookmark"</span>)) { item <span class="operator">=</span> createChildItem(qName); item<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); item<span class="operator">-</span><span class="operator">></span>setIcon(<span class="number">0</span><span class="operator">,</span> bookmarkIcon); item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Unknown title"</span>)); item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">1</span><span class="operator">,</span> attributes<span class="operator">.</span>value(hrefAttribute())); } <span class="keyword">else</span> <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"separator"</span>)) { item <span class="operator">=</span> createChildItem(qName); item<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">&</span> <span class="operator">~</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsSelectable); item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="number">30</span><span class="operator">,</span> <span class="number">0xB7</span>)); } currentText<span class="operator">.</span>clear(); <span class="keyword">return</span> <span class="keyword">true</span>; } bool XbelHandler<span class="operator">::</span>endElement(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span> <span class="comment">/* namespaceURI */</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span> <span class="comment">/* localName */</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>qName) { <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"title"</span>)) { <span class="keyword">if</span> (item) item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> currentText); } <span class="keyword">else</span> <span class="keyword">if</span> (qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"folder"</span>) <span class="operator">|</span><span class="operator">|</span> qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"bookmark"</span>) <span class="operator">|</span><span class="operator">|</span> qName <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"separator"</span>)) { item <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>parent(); } <span class="keyword">return</span> <span class="keyword">true</span>; } bool XbelHandler<span class="operator">::</span>characters(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>str) { currentText <span class="operator">+</span><span class="operator">=</span> str; <span class="keyword">return</span> <span class="keyword">true</span>; } bool XbelHandler<span class="operator">::</span>fatalError(<span class="keyword">const</span> <span class="type"><a href="qxmlparseexception.html">QXmlParseException</a></span> <span class="operator">&</span>exception) { <span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(treeWidget<span class="operator">-</span><span class="operator">></span>window()<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"SAX Bookmarks"</span>)<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Parse error at line %1, column %2:\n"</span> <span class="string">"%3"</span>) <span class="operator">.</span>arg(exception<span class="operator">.</span>lineNumber()) <span class="operator">.</span>arg(exception<span class="operator">.</span>columnNumber()) <span class="operator">.</span>arg(exception<span class="operator">.</span>message())); <span class="keyword">return</span> <span class="keyword">false</span>; } <span class="type"><a href="../qtcore/qstring.html">QString</a></span> XbelHandler<span class="operator">::</span>errorString() <span class="keyword">const</span> { <span class="keyword">return</span> errorStr; } <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>XbelHandler<span class="operator">::</span>createChildItem(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>tagName) { <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>childItem; <span class="keyword">if</span> (item) { childItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(item); } <span class="keyword">else</span> { childItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(treeWidget); } childItem<span class="operator">-</span><span class="operator">></span>setData(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole<span class="operator">,</span> tagName); <span class="keyword">return</span> childItem; } </pre> </div> <!-- @@@saxbookmarks/xbelhandler.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>