--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/xml/dombookmarks/xbeltree.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,187 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "xbeltree.h"
+
+XbelTree::XbelTree(QWidget *parent)
+    : QTreeWidget(parent)
+{
+    QStringList labels;
+    labels << tr("Title") << tr("Location");
+
+    header()->setResizeMode(QHeaderView::Stretch);
+    setHeaderLabels(labels);
+
+    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 XbelTree::read(QIODevice *device)
+{
+    QString errorStr;
+    int errorLine;
+    int errorColumn;
+
+    if (!domDocument.setContent(device, true, &errorStr, &errorLine,
+                                &errorColumn)) {
+        QMessageBox::information(window(), tr("DOM Bookmarks"),
+                                 tr("Parse error at line %1, column %2:\n%3")
+                                 .arg(errorLine)
+                                 .arg(errorColumn)
+                                 .arg(errorStr));
+        return false;
+    }
+
+    QDomElement root = domDocument.documentElement();
+    if (root.tagName() != "xbel") {
+        QMessageBox::information(window(), tr("DOM Bookmarks"),
+                                 tr("The file is not an XBEL file."));
+        return false;
+    } else if (root.hasAttribute("version")
+               && root.attribute("version") != "1.0") {
+        QMessageBox::information(window(), tr("DOM Bookmarks"),
+                                 tr("The file is not an XBEL version 1.0 "
+                                    "file."));
+        return false;
+    }
+
+    clear();
+
+    disconnect(this, SIGNAL(itemChanged(QTreeWidgetItem *, int)),
+               this, SLOT(updateDomElement(QTreeWidgetItem *, int)));
+
+    QDomElement child = root.firstChildElement("folder");
+    while (!child.isNull()) {
+        parseFolderElement(child);
+        child = child.nextSiblingElement("folder");
+    }
+
+    connect(this, SIGNAL(itemChanged(QTreeWidgetItem *, int)),
+            this, SLOT(updateDomElement(QTreeWidgetItem *, int)));
+
+    return true;
+}
+
+bool XbelTree::write(QIODevice *device)
+{
+    const int IndentSize = 4;
+
+    QTextStream out(device);
+    domDocument.save(out, IndentSize);
+    return true;
+}
+
+void XbelTree::updateDomElement(QTreeWidgetItem *item, int column)
+{
+    QDomElement element = domElementForItem.value(item);
+    if (!element.isNull()) {
+        if (column == 0) {
+            QDomElement oldTitleElement = element.firstChildElement("title");
+            QDomElement newTitleElement = domDocument.createElement("title");
+
+            QDomText newTitleText = domDocument.createTextNode(item->text(0));
+            newTitleElement.appendChild(newTitleText);
+
+            element.replaceChild(newTitleElement, oldTitleElement);
+        } else {
+            if (element.tagName() == "bookmark")
+                element.setAttribute("href", item->text(1));
+        }
+    }
+}
+
+void XbelTree::parseFolderElement(const QDomElement &element,
+                                  QTreeWidgetItem *parentItem)
+{
+    QTreeWidgetItem *item = createItem(element, parentItem);
+
+    QString title = element.firstChildElement("title").text();
+    if (title.isEmpty())
+        title = QObject::tr("Folder");
+
+    item->setFlags(item->flags() | Qt::ItemIsEditable);
+    item->setIcon(0, folderIcon);
+    item->setText(0, title);
+
+    bool folded = (element.attribute("folded") != "no");
+    setItemExpanded(item, !folded);
+
+    QDomElement child = element.firstChildElement();
+    while (!child.isNull()) {
+        if (child.tagName() == "folder") {
+            parseFolderElement(child, item);
+        } else if (child.tagName() == "bookmark") {
+            QTreeWidgetItem *childItem = createItem(child, item);
+
+            QString title = child.firstChildElement("title").text();
+            if (title.isEmpty())
+                title = QObject::tr("Folder");
+
+            childItem->setFlags(item->flags() | Qt::ItemIsEditable);
+            childItem->setIcon(0, bookmarkIcon);
+            childItem->setText(0, title);
+            childItem->setText(1, child.attribute("href"));
+        } else if (child.tagName() == "separator") {
+            QTreeWidgetItem *childItem = createItem(child, item);
+            childItem->setFlags(item->flags() & ~(Qt::ItemIsSelectable | Qt::ItemIsEditable));
+            childItem->setText(0, QString(30, 0xB7));
+        }
+        child = child.nextSiblingElement();
+    }
+}
+
+QTreeWidgetItem *XbelTree::createItem(const QDomElement &element,
+                                      QTreeWidgetItem *parentItem)
+{
+    QTreeWidgetItem *item;
+    if (parentItem) {
+        item = new QTreeWidgetItem(parentItem);
+    } else {
+        item = new QTreeWidgetItem(this);
+    }
+    domElementForItem.insert(item, element);
+    return item;
+}