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** This file is part of the examples of the Qt Toolkit.
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#include <QtGui>

#include "xbelwriter.h"

//! [0]
XbelWriter::XbelWriter(QTreeWidget *treeWidget)
    : treeWidget(treeWidget)
{
    xml.setAutoFormatting(true);
}
//! [0]

//! [1]
bool XbelWriter::writeFile(QIODevice *device)
{
    xml.setDevice(device);

    xml.writeStartDocument();
    xml.writeDTD("<!DOCTYPE xbel>");
    xml.writeStartElement("xbel");
    xml.writeAttribute("version", "1.0");
    for (int i = 0; i < treeWidget->topLevelItemCount(); ++i)
        writeItem(treeWidget->topLevelItem(i));

    xml.writeEndDocument();
    return true;
}
//! [1]

//! [2]
void XbelWriter::writeItem(QTreeWidgetItem *item)
{
    QString tagName = item->data(0, Qt::UserRole).toString();
    if (tagName == "folder") {
        bool folded = !treeWidget->isItemExpanded(item);
        xml.writeStartElement(tagName);
        xml.writeAttribute("folded", folded ? "yes" : "no");
        xml.writeTextElement("title", item->text(0));
        for (int i = 0; i < item->childCount(); ++i)
            writeItem(item->child(i));
        xml.writeEndElement();
    } else if (tagName == "bookmark") {
        xml.writeStartElement(tagName);
        if (!item->text(1).isEmpty())
            xml.writeAttribute("href", item->text(1));
        xml.writeTextElement("title", item->text(0));
        xml.writeEndElement();
    } else if (tagName == "separator") {
        xml.writeEmptyElement(tagName);
    }
}
//! [2]
