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# multipagewidgetplugin.cpp Example File
designer/containerextension/multipagewidgetplugin.cpp

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        ** Copyright (C) 2005-2006 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
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        ** License version 2.0 as published by the Free Software Foundation
        ** and appearing in the file LICENSE.GPL included in the packaging of
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        ** review the following information:
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        #include <QtDesigner/QExtensionFactory>
        #include <QtDesigner/QExtensionManager>
        #include <QtDesigner/QDesignerFormEditorInterface>
        #include <QtDesigner/QDesignerContainerExtension>

        #include <QIcon>
        #include <QtPlugin>

        #include "multipagewidget.h"
        #include "multipagewidgetplugin.h"
        #include "multipagewidgetextensionfactory.h"

        MultiPageWidgetPlugin::MultiPageWidgetPlugin(QObject *parent)
            :QObject(parent)
        {
            initialized = false;
        }

        QString MultiPageWidgetPlugin::name() const
        {
            return QString("MultiPageWidget");
        }

        QString MultiPageWidgetPlugin::group() const
        {
            return QString("Display Widgets [Examples]");
        }

        QString MultiPageWidgetPlugin::toolTip() const
        {
            return "";
        }

        QString MultiPageWidgetPlugin::whatsThis() const
        {
            return "";
        }

        QString MultiPageWidgetPlugin::includeFile() const
        {
            return QString("multipagewidget.h");
        }

        QIcon MultiPageWidgetPlugin::icon() const
        {
            return QIcon();
        }

        bool MultiPageWidgetPlugin::isContainer() const
        {
            return true;
        }

        QWidget *MultiPageWidgetPlugin::createWidget(QWidget *parent)
        {
            MultiPageWidget *widget = new MultiPageWidget(parent);
            return widget;
        }

        bool MultiPageWidgetPlugin::isInitialized() const
        {
            return initialized;
        }

        void MultiPageWidgetPlugin::initialize(QDesignerFormEditorInterface *formEditor)
        {
            if (initialized)
                return;

            QExtensionManager *manager = formEditor->extensionManager();
            QExtensionFactory *factory = new MultiPageWidgetExtensionFactory(manager);

            Q_ASSERT(manager != 0);
            manager->registerExtensions(factory, Q_TYPEID(QDesignerContainerExtension));

            initialized = true;
        }

        QString MultiPageWidgetPlugin::domXml() const
        {
            return QString("\
            <widget class=\"MultiPageWidget\" name=\"multipagewidget\">\
                <widget class=\"QWidget\" />\
            </widget>\
            ");
        }

        Q_EXPORT_PLUGIN2(containerextension, MultiPageWidgetPlugin)