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diff --git a/examples/sql/drilldown/informationwindow.cpp b/examples/sql/drilldown/informationwindow.cpp
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+++ b/examples/sql/drilldown/informationwindow.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 "informationwindow.h"
+
+//! [0]
+InformationWindow::InformationWindow(int id, QSqlRelationalTableModel *offices,
+                                     QWidget *parent)
+    : QDialog(parent)
+{
+//! [0] //! [1]
+    QLabel *locationLabel = new QLabel(tr("Location: "));
+    QLabel *countryLabel = new QLabel(tr("Country: "));
+    QLabel *descriptionLabel = new QLabel(tr("Description: "));
+    QLabel *imageFileLabel = new QLabel(tr("Image file: "));
+
+    createButtons();
+
+    locationText = new QLabel;
+    countryText = new QLabel;
+    descriptionEditor = new QTextEdit;
+//! [1]
+
+//! [2]
+    imageFileEditor = new QComboBox;
+    imageFileEditor->setModel(offices->relationModel(1));
+    imageFileEditor->setModelColumn(offices->relationModel(1)->fieldIndex("file"));
+//! [2]
+
+//! [3]
+    mapper = new QDataWidgetMapper(this);
+    mapper->setModel(offices);
+    mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
+    mapper->setItemDelegate(new QSqlRelationalDelegate(mapper));
+    mapper->addMapping(imageFileEditor, 1);
+    mapper->addMapping(locationText, 2, "text");
+    mapper->addMapping(countryText, 3, "text");
+    mapper->addMapping(descriptionEditor, 4);
+    mapper->setCurrentIndex(id);
+//! [3]
+
+//! [4]
+    connect(descriptionEditor, SIGNAL(textChanged()),
+            this, SLOT(enableButtons()));
+    connect(imageFileEditor, SIGNAL(currentIndexChanged(int)),
+            this, SLOT(enableButtons()));
+
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(locationLabel, 0, 0, Qt::AlignLeft | Qt::AlignTop);
+    layout->addWidget(countryLabel, 1, 0, Qt::AlignLeft | Qt::AlignTop);
+    layout->addWidget(imageFileLabel, 2, 0, Qt::AlignLeft | Qt::AlignTop);
+    layout->addWidget(descriptionLabel, 3, 0, Qt::AlignLeft | Qt::AlignTop);
+    layout->addWidget(locationText, 0, 1);
+    layout->addWidget(countryText, 1, 1);
+    layout->addWidget(imageFileEditor, 2, 1);
+    layout->addWidget(descriptionEditor, 3, 1);
+    layout->addWidget(buttonBox, 4, 0, 1, 2);
+    setLayout(layout);
+
+    locationId = id;
+    displayedImage = imageFileEditor->currentText();
+
+    setWindowFlags(Qt::Window);
+    enableButtons(false);
+    setWindowTitle(tr("Office: %1").arg(locationText->text()));
+    resize(320, sizeHint().height());
+}
+//! [4]
+
+//! [5]
+int InformationWindow::id()
+{
+    return locationId;
+}
+//! [5]
+
+//! [6]
+void InformationWindow::revert()
+{
+    mapper->revert();
+    enableButtons(false);
+}
+//! [6]
+
+//! [7]
+void InformationWindow::submit()
+{
+    QString newImage(imageFileEditor->currentText());
+
+    if (displayedImage != newImage) {
+        displayedImage = newImage;
+        emit imageChanged(locationId, newImage);
+    }
+
+    mapper->submit();
+    mapper->setCurrentIndex(locationId);
+
+    enableButtons(false);
+}
+//! [7]
+
+//! [8]
+void InformationWindow::createButtons()
+{
+    closeButton = new QPushButton(tr("&Close"));
+    revertButton = new QPushButton(tr("&Revert"));
+    submitButton = new QPushButton(tr("&Submit"));
+
+    closeButton->setDefault(true);
+
+    connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
+    connect(revertButton, SIGNAL(clicked()), this, SLOT(revert()));
+    connect(submitButton, SIGNAL(clicked()), this, SLOT(submit()));
+//! [8]
+
+//! [9]
+    buttonBox = new QDialogButtonBox;
+    buttonBox->addButton(submitButton, QDialogButtonBox::ResetRole);
+    buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);
+    buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
+}
+//! [9]
+
+//! [10]
+void InformationWindow::enableButtons(bool enable)
+{
+    revertButton->setEnabled(enable);
+    submitButton->setEnabled(enable);
+}
+//! [10]
+
+