--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/designer/containerextension/multipagewidgetplugin.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,197 @@
+/****************************************************************************
+**
+** 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 <QtDesigner/QExtensionFactory>
+#include <QtDesigner/QExtensionManager>
+#include <QtDesigner/QDesignerFormEditorInterface>
+#include <QtDesigner/QDesignerFormWindowInterface>
+#include <QtDesigner/QDesignerContainerExtension>
+#include <QtDesigner/QDesignerPropertySheetExtension>
+
+#include <QIcon>
+#include <QtPlugin>
+
+#include "multipagewidget.h"
+#include "multipagewidgetplugin.h"
+#include "multipagewidgetextensionfactory.h"
+
+//! [0]
+MultiPageWidgetPlugin::MultiPageWidgetPlugin(QObject *parent)
+    :QObject(parent)
+{
+    initialized = false;
+}
+
+QString MultiPageWidgetPlugin::name() const
+{
+    return QLatin1String("MultiPageWidget");
+}
+
+QString MultiPageWidgetPlugin::group() const
+{
+    return QLatin1String("Display Widgets [Examples]");
+}
+
+QString MultiPageWidgetPlugin::toolTip() const
+{
+    return QString();
+}
+
+QString MultiPageWidgetPlugin::whatsThis() const
+{
+    return QString();
+}
+
+QString MultiPageWidgetPlugin::includeFile() const
+{
+    return QLatin1String("multipagewidget.h");
+}
+
+QIcon MultiPageWidgetPlugin::icon() const
+{
+    return QIcon();
+}
+
+//! [0] //! [1]
+bool MultiPageWidgetPlugin::isContainer() const
+{
+    return true;
+}
+
+//! [1] //! [2]
+QWidget *MultiPageWidgetPlugin::createWidget(QWidget *parent)
+{
+    MultiPageWidget *widget = new MultiPageWidget(parent);
+    connect(widget, SIGNAL(currentIndexChanged(int)),
+            this, SLOT(currentIndexChanged(int)));
+    connect(widget, SIGNAL(pageTitleChanged(const QString &)),
+            this, SLOT(pageTitleChanged(const QString &)));
+    return widget;
+}
+
+//! [2] //! [3]
+bool MultiPageWidgetPlugin::isInitialized() const
+{
+    return initialized;
+}
+//! [3]
+
+//! [4]
+void MultiPageWidgetPlugin::initialize(QDesignerFormEditorInterface *formEditor)
+{
+    if (initialized)
+        return;
+//! [4]
+
+//! [5]
+    QExtensionManager *manager = formEditor->extensionManager();
+//! [5] //! [6]
+    QExtensionFactory *factory = new MultiPageWidgetExtensionFactory(manager);
+
+    Q_ASSERT(manager != 0);
+    manager->registerExtensions(factory, Q_TYPEID(QDesignerContainerExtension));
+
+    initialized = true;
+}
+//! [6]
+
+//! [7]
+QString MultiPageWidgetPlugin::domXml() const
+{
+    return QLatin1String("\
+<ui language=\"c++\">\
+    <widget class=\"MultiPageWidget\" name=\"multipagewidget\">\
+        <widget class=\"QWidget\" name=\"page\" />\
+    </widget>\
+    <customwidgets>\
+        <customwidget>\
+            <class>MultiPageWidget</class>\
+            <extends>QWidget</extends>\
+            <addpagemethod>addPage</addpagemethod>\
+        </customwidget>\
+    </customwidgets>\
+</ui>");
+}
+//! [7]
+
+//! [8]
+void MultiPageWidgetPlugin::currentIndexChanged(int index)
+{
+    Q_UNUSED(index);
+    MultiPageWidget *widget = qobject_cast<MultiPageWidget*>(sender());
+//! [8] //! [9]
+    if (widget) {
+        QDesignerFormWindowInterface *form = QDesignerFormWindowInterface::findFormWindow(widget);
+        if (form)
+            form->emitSelectionChanged();
+    }
+}
+//! [9]
+
+//! [10]
+void MultiPageWidgetPlugin::pageTitleChanged(const QString &title)
+{
+    Q_UNUSED(title);
+    MultiPageWidget *widget = qobject_cast<MultiPageWidget*>(sender());
+//! [10] //! [11]
+    if (widget) {
+        QWidget *page = widget->widget(widget->currentIndex());
+        QDesignerFormWindowInterface *form;
+        form = QDesignerFormWindowInterface::findFormWindow(widget);
+//! [11]
+        if (form) {
+//! [12]
+            QDesignerFormEditorInterface *editor = form->core();
+            QExtensionManager *manager = editor->extensionManager();
+//! [12] //! [13]
+            QDesignerPropertySheetExtension *sheet;
+            sheet = qt_extension<QDesignerPropertySheetExtension*>(manager, page);
+            const int propertyIndex = sheet->indexOf(QLatin1String("windowTitle"));
+            sheet->setChanged(propertyIndex, true);
+        }
+    }
+}
+
+//! [13]
+
+//! [14]
+Q_EXPORT_PLUGIN2(containerextension, MultiPageWidgetPlugin)
+//! [14]