Home · All Classes · Main Classes · Grouped Classes · Modules · Functions

xbelreader.cpp Example File
xml/streambookmarks/xbelreader.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
** your option) use any later version of the GNU General Public
** License if such license has been publicly approved by Trolltech ASA
** (or its successors, if any) and the KDE Free Qt Foundation. In
** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.2, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
** you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** In addition, as a special exception, Trolltech, as the sole
** copyright holder for Qt Designer, grants users of the Qt/Eclipse
** Integration plug-in the right for the Qt/Eclipse Integration to
** link to functionality provided by Qt Designer and its related
** libraries.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
** granted herein.
 **
 ** 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 "xbelreader.h"

 XbelReader::XbelReader(QTreeWidget *treeWidget)
     : treeWidget(treeWidget)
 {
     QStyle *style = treeWidget->style();

     folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirClosedIcon),
                          QIcon::Normal, QIcon::Off);
     folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirOpenIcon),
                          QIcon::Normal, QIcon::On);
     bookmarkIcon.addPixmap(style->standardPixmap(QStyle::SP_FileIcon));
 }

 bool XbelReader::read(QIODevice *device)
 {
     setDevice(device);

     while (!atEnd()) {
         readNext();

         if (isStartElement()) {
             if (name() == "xbel" && attributes().value("version") == "1.0")
                 readXBEL();
             else
                 raiseError(QObject::tr("The file is not an XBEL version 1.0 file."));
         }
     }

     return !error();
 }

 void XbelReader::readUnknownElement()
 {
     Q_ASSERT(isStartElement());

     while (!atEnd()) {
         readNext();

         if (isEndElement())
             break;

         if (isStartElement())
             readUnknownElement();
     }
 }

 void XbelReader::readXBEL()
 {
     Q_ASSERT(isStartElement() && name() == "xbel");

     while (!atEnd()) {
         readNext();

         if (isEndElement())
             break;

         if (isStartElement()) {
             if (name() == "folder")
                 readFolder(0);
             else if (name() == "bookmark")
                 readBookmark(0);
             else if (name() == "separator")
                 readSeparator(0);
             else
                 readUnknownElement();
         }
     }
 }

 void XbelReader::readTitle(QTreeWidgetItem *item)
 {
     Q_ASSERT(isStartElement() && name() == "title");

     QString title = readElementText();
     item->setText(0, title);
 }

 void XbelReader::readSeparator(QTreeWidgetItem *item)
 {
     QTreeWidgetItem *separator = createChildItem(item);
     separator->setFlags(item->flags() & ~Qt::ItemIsSelectable);
     separator->setText(0, QString(30, 0xB7));
     readElementText();
 }

 void XbelReader::readFolder(QTreeWidgetItem *item)
 {
     Q_ASSERT(isStartElement() && name() == "folder");

     QTreeWidgetItem *folder = createChildItem(item);
     bool folded = (attributes().value("folded") != "no");
     treeWidget->setItemExpanded(folder, !folded);

     while (!atEnd()) {
         readNext();

         if (isEndElement())
             break;

         if (isStartElement()) {
             if (name() == "title")
                 readTitle(folder);
             else if (name() == "folder")
                 readFolder(folder);
             else if (name() == "bookmark")
                 readBookmark(folder);
             else if (name() == "separator")
                 readSeparator(folder);
             else
                 readUnknownElement();
         }
     }
 }

 void XbelReader::readBookmark(QTreeWidgetItem *item)
 {
     Q_ASSERT(isStartElement() && name() == "bookmark");

     QTreeWidgetItem *bookmark = createChildItem(item);
     bookmark->setFlags(bookmark->flags() | Qt::ItemIsEditable);
     bookmark->setIcon(0, bookmarkIcon);
     bookmark->setText(0, QObject::tr("Unknown title"));
     bookmark->setText(1, attributes().value("href").toString());
     while (!atEnd()) {
         readNext();

         if (isEndElement())
             break;

         if (isStartElement()) {
             if (name() == "title")
                 readTitle(bookmark);
             else
                 readUnknownElement();
         }
     }
 }

 QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item)
 {
     QTreeWidgetItem *childItem;
     if (item) {
         childItem = new QTreeWidgetItem(item);
     } else {
         childItem = new QTreeWidgetItem(treeWidget);
     }
     childItem->setData(0, Qt::UserRole, name().toString());
     return childItem;
 }


Copyright © 2008 Trolltech Trademarks
Qt 4.3.5