diff -r 000000000000 -r 1918ee327afb examples/xmlpatterns/filetree/mainwindow.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/xmlpatterns/filetree/mainwindow.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,166 @@
+/****************************************************************************
+**
+** 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 <QLibraryInfo>
+#include <QtXmlPatterns>
+
+#include "mainwindow.h"
+#include "xmlsyntaxhighlighter.h"
+
+//! [0]
+MainWindow::MainWindow() : m_fileTree(m_namePool)
+{
+    setupUi(this);
+
+    new XmlSyntaxHighlighter(fileTree->document());
+
+    // Set up the font.
+    {
+        QFont font("Courier",10);
+        font.setFixedPitch(true);
+
+        fileTree->setFont(font);
+        queryEdit->setFont(font);
+        output->setFont(font);
+    }
+
+    const QString dir(QLibraryInfo::location(QLibraryInfo::ExamplesPath) + "/xmlpatterns/filetree");
+    qDebug() << dir;
+
+    if (QDir(dir).exists())
+        loadDirectory(dir);
+    else
+        fileTree->setPlainText(tr("Use the Open menu entry to select a directory."));
+
+    const QStringList queries(QDir(":/queries/", "*.xq").entryList());
+    int len = queries.count();
+
+    for (int i = 0; i < len; ++i)
+        queryBox->addItem(queries.at(i));
+
+}
+//! [0]
+
+//! [2]
+void MainWindow::on_queryBox_currentIndexChanged()
+{
+    QFile queryFile(":/queries/" + queryBox->currentText());
+    queryFile.open(QIODevice::ReadOnly);
+
+    queryEdit->setPlainText(QString::fromLatin1(queryFile.readAll()));
+    evaluateResult();
+}
+//! [2]
+
+//! [3]
+void MainWindow::evaluateResult()
+{
+    if (queryBox->currentText().isEmpty())
+        return;
+
+    QXmlQuery query(m_namePool);
+    query.bindVariable("fileTree", m_fileNode);
+    query.setQuery(QUrl("qrc:/queries/" + queryBox->currentText()));
+
+    QByteArray formatterOutput;
+    QBuffer buffer(&formatterOutput);
+    buffer.open(QIODevice::WriteOnly);
+
+    QXmlFormatter formatter(query, &buffer);
+    query.evaluateTo(&formatter);
+
+    output->setText(QString::fromLatin1(formatterOutput.constData()));
+}
+//! [3]
+
+//! [1]
+void MainWindow::on_actionOpenDirectory_triggered()
+{
+    const QString directoryName = QFileDialog::getExistingDirectory(this);
+    if (!directoryName.isEmpty())
+        loadDirectory(directoryName);
+}
+//! [1]
+
+//! [4]
+//! [5]
+void MainWindow::loadDirectory(const QString &directory)
+{
+    Q_ASSERT(QDir(directory).exists());
+
+    m_fileNode = m_fileTree.nodeFor(directory);
+//! [5]
+
+    QXmlQuery query(m_namePool);
+    query.bindVariable("fileTree", m_fileNode);
+    query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));
+
+    QByteArray output;
+    QBuffer buffer(&output);
+    buffer.open(QIODevice::WriteOnly);
+
+    QXmlFormatter formatter(query, &buffer);
+    query.evaluateTo(&formatter);
+
+    treeInfo->setText((QString(tr("Model of %1 output as XML.")).arg(directory)));
+    fileTree->setText(QString::fromLatin1(output.constData()));
+    evaluateResult();
+//! [6]    
+}
+//! [6]    
+//! [4]
+
+void MainWindow::on_actionAbout_triggered()
+{
+    QMessageBox::about(this, tr("About File Tree"),
+                   tr("<p>Select <b>File->Open Directory</b> and "
+                      "choose a directory. The directory is then "
+                      "loaded into the model, and the model is "
+                      "displayed on the left as XML.</p>"
+
+                      "<p>From the query menu on the right, select "
+                      "a query. The query is displayed and then run "
+                      "on the model. The results are displayed below "
+                      "the query.</p>"));
+}
+
+