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diff --git a/examples/tutorials/addressbook/part7/addressbook.cpp b/examples/tutorials/addressbook/part7/addressbook.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "addressbook.h"
+
+AddressBook::AddressBook(QWidget *parent)
+    : QWidget(parent)
+{
+    QLabel *nameLabel = new QLabel(tr("Name:"));
+    nameLine = new QLineEdit;
+    nameLine->setReadOnly(true);
+
+    QLabel *addressLabel = new QLabel(tr("Address:"));
+    addressText = new QTextEdit;
+    addressText->setReadOnly(true);
+
+    addButton = new QPushButton(tr("&Add"));
+
+    editButton = new QPushButton(tr("&Edit"));
+    editButton->setEnabled(false);
+    removeButton = new QPushButton(tr("&Remove"));
+    removeButton->setEnabled(false);
+    findButton = new QPushButton(tr("&Find"));
+    findButton->setEnabled(false);
+    submitButton = new QPushButton(tr("&Submit"));
+    submitButton->hide();
+    cancelButton = new QPushButton(tr("&Cancel"));
+    cancelButton->hide();
+
+    nextButton = new QPushButton(tr("&Next"));
+    nextButton->setEnabled(false);
+    previousButton = new QPushButton(tr("&Previous"));
+    previousButton->setEnabled(false);
+
+    loadButton = new QPushButton(tr("&Load..."));
+    loadButton->setToolTip(tr("Load contacts from a file"));
+    saveButton = new QPushButton(tr("Sa&ve..."));
+    saveButton->setToolTip(tr("Save contacts to a file"));
+    saveButton->setEnabled(false);
+
+    exportButton = new QPushButton(tr("E&xport"));
+    exportButton->setToolTip(tr("Export as vCard"));
+    exportButton->setEnabled(false);
+
+    dialog = new FindDialog;
+
+    connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));
+    connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));
+    connect(editButton, SIGNAL(clicked()), this, SLOT(editContact()));
+    connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
+    connect(removeButton, SIGNAL(clicked()), this, SLOT(removeContact()));
+    connect(findButton, SIGNAL(clicked()), this, SLOT(findContact()));
+    connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));
+    connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));
+    connect(loadButton, SIGNAL(clicked()), this, SLOT(loadFromFile()));
+    connect(saveButton, SIGNAL(clicked()), this, SLOT(saveToFile()));
+    connect(exportButton, SIGNAL(clicked()), this, SLOT(exportAsVCard()));
+    
+    QVBoxLayout *buttonLayout1 = new QVBoxLayout;
+    buttonLayout1->addWidget(addButton);
+    buttonLayout1->addWidget(editButton);
+    buttonLayout1->addWidget(removeButton);
+    buttonLayout1->addWidget(findButton);
+    buttonLayout1->addWidget(submitButton);
+    buttonLayout1->addWidget(cancelButton);
+    buttonLayout1->addWidget(loadButton);
+    buttonLayout1->addWidget(saveButton);
+    buttonLayout1->addWidget(exportButton);
+    buttonLayout1->addStretch();
+
+    QHBoxLayout *buttonLayout2 = new QHBoxLayout;
+    buttonLayout2->addWidget(previousButton);
+    buttonLayout2->addWidget(nextButton);
+
+    QGridLayout *mainLayout = new QGridLayout;
+    mainLayout->addWidget(nameLabel, 0, 0);
+    mainLayout->addWidget(nameLine, 0, 1);
+    mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);
+    mainLayout->addWidget(addressText, 1, 1);
+    mainLayout->addLayout(buttonLayout1, 1, 2);
+    mainLayout->addLayout(buttonLayout2, 2, 1);
+
+    setLayout(mainLayout);
+    setWindowTitle(tr("Simple Address Book"));
+}
+
+void AddressBook::addContact()
+{
+    oldName = nameLine->text();
+    oldAddress = addressText->toPlainText();
+
+    nameLine->clear();
+    addressText->clear();
+
+    updateInterface(AddingMode);
+}
+
+void AddressBook::editContact()
+{
+    oldName = nameLine->text();
+    oldAddress = addressText->toPlainText();
+
+    updateInterface(EditingMode);
+}
+
+void AddressBook::submitContact()
+{
+    QString name = nameLine->text();
+    QString address = addressText->toPlainText();
+
+    if (name == "" || address == "") {
+        QMessageBox::information(this, tr("Empty Field"),
+            tr("Please enter a name and address."));
+        return;
+    }
+
+    if (currentMode == AddingMode) {
+        
+        if (!contacts.contains(name)) {
+            contacts.insert(name, address);
+            QMessageBox::information(this, tr("Add Successful"),
+                tr("\"%1\" has been added to your address book.").arg(name));
+        } else {
+            QMessageBox::information(this, tr("Add Unsuccessful"),
+                tr("Sorry, \"%1\" is already in your address book.").arg(name));
+            return;
+        }
+    } else if (currentMode == EditingMode) {
+        
+        if (oldName != name) {
+            if (!contacts.contains(name)) {
+                QMessageBox::information(this, tr("Edit Successful"),
+                    tr("\"%1\" has been edited in your address book.").arg(oldName));
+                contacts.remove(oldName);
+                contacts.insert(name, address);
+            } else {
+                QMessageBox::information(this, tr("Edit Unsuccessful"),
+                    tr("Sorry, \"%1\" is already in your address book.").arg(name));
+                return;
+            }
+        } else if (oldAddress != address) {
+            QMessageBox::information(this, tr("Edit Successful"),
+                tr("\"%1\" has been edited in your address book.").arg(name));
+            contacts[name] = address;
+        }
+    }
+
+    updateInterface(NavigationMode);
+}
+
+void AddressBook::cancel()
+{
+    nameLine->setText(oldName);
+    addressText->setText(oldAddress);
+    updateInterface(NavigationMode);
+}
+
+void AddressBook::removeContact()
+{
+    QString name = nameLine->text();
+    QString address = addressText->toPlainText();
+
+    if (contacts.contains(name)) {
+
+        int button = QMessageBox::question(this,
+            tr("Confirm Remove"),
+            tr("Are you sure you want to remove \"%1\"?").arg(name),
+            QMessageBox::Yes | QMessageBox::No);
+
+        if (button == QMessageBox::Yes) {
+            
+            previous();
+            contacts.remove(name);
+
+            QMessageBox::information(this, tr("Remove Successful"),
+                tr("\"%1\" has been removed from your address book.").arg(name));
+        }
+    }
+
+    updateInterface(NavigationMode);
+}
+
+void AddressBook::next()
+{
+    QString name = nameLine->text();
+    QMap<QString, QString>::iterator i = contacts.find(name);
+
+    if (i != contacts.end())
+        i++;
+
+    if (i == contacts.end())
+        i = contacts.begin();
+
+    nameLine->setText(i.key());
+    addressText->setText(i.value());
+}
+
+void AddressBook::previous()
+{
+    QString name = nameLine->text();
+    QMap<QString, QString>::iterator i = contacts.find(name);
+
+    if (i == contacts.end()) {
+        nameLine->clear();
+        addressText->clear();
+        return;
+    }
+
+    if (i == contacts.begin())
+        i = contacts.end();
+
+    i--;
+    nameLine->setText(i.key());
+    addressText->setText(i.value());
+}
+
+void AddressBook::findContact()
+{
+    dialog->show();
+
+    if (dialog->exec() == 1) {
+        QString contactName = dialog->getFindText();
+
+        if (contacts.contains(contactName)) {
+            nameLine->setText(contactName);
+            addressText->setText(contacts.value(contactName));
+        } else {
+            QMessageBox::information(this, tr("Contact Not Found"),
+                tr("Sorry, \"%1\" is not in your address book.").arg(contactName));
+            return;
+        }
+    }
+
+    updateInterface(NavigationMode);
+}
+void AddressBook::updateInterface(Mode mode)
+{
+    currentMode = mode;
+
+    switch (currentMode) {
+
+    case AddingMode:
+    case EditingMode:
+
+        nameLine->setReadOnly(false);
+        nameLine->setFocus(Qt::OtherFocusReason);
+        addressText->setReadOnly(false);
+
+        addButton->setEnabled(false);
+        editButton->setEnabled(false);
+        removeButton->setEnabled(false);
+
+        nextButton->setEnabled(false);
+        previousButton->setEnabled(false);
+
+        submitButton->show();
+        cancelButton->show();
+
+        loadButton->setEnabled(false);
+        saveButton->setEnabled(false);
+        exportButton->setEnabled(false);
+        break;
+
+    case NavigationMode:
+        
+        if (contacts.isEmpty()) {
+            nameLine->clear();
+            addressText->clear();
+        }
+
+        nameLine->setReadOnly(true);
+        addressText->setReadOnly(true);
+        addButton->setEnabled(true);
+
+        int number = contacts.size();
+        editButton->setEnabled(number >= 1);
+        removeButton->setEnabled(number >= 1);
+        findButton->setEnabled(number > 2);
+        nextButton->setEnabled(number > 1);
+        previousButton->setEnabled(number > 1);
+
+        submitButton->hide();
+        cancelButton->hide();
+
+        exportButton->setEnabled(number >= 1);
+
+        loadButton->setEnabled(true);
+        saveButton->setEnabled(number >= 1);
+        break;
+    }
+}
+
+void AddressBook::saveToFile()
+{
+    QString fileName = QFileDialog::getSaveFileName(this,
+        tr("Save Address Book"), "",
+        tr("Address Book (*.abk);;All Files (*)"));
+        
+    if (fileName.isEmpty())
+        return;
+    else {
+        QFile file(fileName);
+
+        if (!file.open(QIODevice::WriteOnly)) {
+            QMessageBox::information(this, tr("Unable to open file"),
+                file.errorString());
+            return;
+        }
+
+        QDataStream out(&file);
+        out.setVersion(QDataStream::Qt_4_3);
+        out << contacts;
+    }
+
+    updateInterface(NavigationMode);
+}
+
+void AddressBook::loadFromFile()
+{
+    QString fileName = QFileDialog::getOpenFileName(this,
+        tr("Open Address Book"), "",
+        tr("Address Book (*.abk);;All Files (*)"));
+
+    if (fileName.isEmpty())
+        return;
+    else {
+        QFile file(fileName);
+
+        if (!file.open(QIODevice::ReadOnly)) {
+            QMessageBox::information(this, tr("Unable to open file"),
+                file.errorString());
+            return;
+        }
+
+        QDataStream in(&file);
+        in.setVersion(QDataStream::Qt_4_3);
+        contacts.empty();   // empty existing contacts
+        in >> contacts;
+
+        QMap<QString, QString>::iterator i = contacts.begin();
+        nameLine->setText(i.key());
+        addressText->setText(i.value());
+    }
+
+    updateInterface(NavigationMode);
+}
+
+//! [export function part1]
+void AddressBook::exportAsVCard()
+{
+    QString name = nameLine->text();
+    QString address = addressText->toPlainText();
+    QString firstName;
+    QString lastName;
+    QStringList nameList;
+
+    int index = name.indexOf(" ");
+
+    if (index != -1) {
+        nameList = name.split(QRegExp("\\s+"), QString::SkipEmptyParts);
+        firstName = nameList.first();
+        lastName = nameList.last();
+    } else {
+        firstName = name;
+        lastName = "";
+    }
+
+    QString fileName = QFileDialog::getSaveFileName(this,
+        tr("Export Contact"), "",
+        tr("vCard Files (*.vcf);;All Files (*)"));
+        
+    if (fileName.isEmpty())
+        return;
+
+    QFile file(fileName);
+//! [export function part1]
+    
+//! [export function part2]    
+    if (!file.open(QIODevice::WriteOnly)) {
+        QMessageBox::information(this, tr("Unable to open file"),
+            file.errorString());
+        return;
+    }
+
+    QTextStream out(&file);
+//! [export function part2]
+
+//! [export function part3]
+    out << "BEGIN:VCARD" << "\n";
+    out << "VERSION:2.1" << "\n";
+    out << "N:" << lastName << ";" << firstName << "\n";
+        
+    if (!nameList.isEmpty())            
+       out << "FN:" << nameList.join(" ") << "\n";
+    else
+       out << "FN:" << firstName << "\n";
+//! [export function part3] 
+
+//! [export function part4]
+    address.replace(";", "\\;", Qt::CaseInsensitive);
+    address.replace("\n", ";", Qt::CaseInsensitive);
+    address.replace(",", " ", Qt::CaseInsensitive);
+
+    out << "ADR;HOME:;" << address << "\n";
+    out << "END:VCARD" << "\n";
+
+    QMessageBox::information(this, tr("Export Successful"),
+        tr("\"%1\" has been exported as a vCard.").arg(name));
+}
+//! [export function part4]