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xbelgenerator.cpp Example File
xml/saxbookmarks/xbelgenerator.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2005-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #include <QtGui>

 #include "xbelgenerator.h"

 XbelGenerator::XbelGenerator(QTreeWidget *treeWidget)
     : treeWidget(treeWidget)
 {
 }

 bool XbelGenerator::write(QIODevice *device)
 {
     out.setDevice(device);
     out.setCodec("UTF-8");
     out << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
         << "<!DOCTYPE xbel>\n"
         << "<xbel version=\"1.0\">\n";

     for (int i = 0; i < treeWidget->topLevelItemCount(); ++i)
         generateItem(treeWidget->topLevelItem(i), 1);

     out << "</xbel>\n";
     return true;
 }

 QString XbelGenerator::indent(int depth)
 {
     const int IndentSize = 4;
     return QString(IndentSize * depth, ' ');
 }

 QString XbelGenerator::escapedText(const QString &str)
 {
     QString result = str;
     result.replace("&", "&amp;");
     result.replace("<", "&lt;");
     result.replace(">", "&gt;");
     return result;
 }

 QString XbelGenerator::escapedAttribute(const QString &str)
 {
     QString result = escapedText(str);
     result.replace("\"", "&quot;");
     result.prepend("\"");
     result.append("\"");
     return result;
 }

 void XbelGenerator::generateItem(QTreeWidgetItem *item, int depth)
 {
     QString tagName = item->data(0, Qt::UserRole).toString();
     if (tagName == "folder") {
         bool folded = !treeWidget->isItemExpanded(item);
         out << indent(depth) << "<folder folded=\"" << (folded ? "yes" : "no")
                              << "\">\n"
             << indent(depth + 1) << "<title>" << escapedText(item->text(0))
                                  << "</title>\n";

         for (int i = 0; i < item->childCount(); ++i)
             generateItem(item->child(i), depth + 1);

         out << indent(depth) << "</folder>\n";
     } else if (tagName == "bookmark") {
         out << indent(depth) << "<bookmark";
         if (!item->text(1).isEmpty())
             out << " href=" << escapedAttribute(item->text(1));
         out << ">\n"
             << indent(depth + 1) << "<title>" << escapedText(item->text(0))
                                  << "</title>\n"
             << indent(depth) << "</bookmark>\n";
     } else if (tagName == "separator") {
         out << indent(depth) << "<separator/>\n";
     }
 }