Long live Qt 4.5!

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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 Qt Designer 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of Qt Designer.  This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef PROMOTIONMODEL_H
+#define PROMOTIONMODEL_H
+
+#include <QtGui/QStandardItemModel>
+#include <QtCore/QSet>
+
+QT_BEGIN_NAMESPACE
+
+class QDesignerFormEditorInterface;
+class QDesignerWidgetDataBaseItemInterface;
+
+namespace qdesigner_internal {
+
+    // Item model representing the promoted widgets.
+    class PromotionModel : public QStandardItemModel {
+        Q_OBJECT
+
+    public:
+        explicit PromotionModel(QDesignerFormEditorInterface *core);
+
+        void updateFromWidgetDatabase();
+
+        // Return item at model index or 0.
+        QDesignerWidgetDataBaseItemInterface *databaseItemAt(const QModelIndex &, bool *referenced) const;
+
+        QModelIndex indexOfClass(const QString &className) const;
+
+   signals:
+        void includeFileChanged(QDesignerWidgetDataBaseItemInterface *, const QString &includeFile);
+        void classNameChanged(QDesignerWidgetDataBaseItemInterface *, const QString &newName);
+
+    private slots:
+        void slotItemChanged(QStandardItem * item);
+
+    private:
+        void initializeHeaders();
+        // Retrieve data base item of item or return 0.
+        QDesignerWidgetDataBaseItemInterface *databaseItem(const QStandardItem * item, bool *referenced) const;
+
+        QDesignerFormEditorInterface *m_core;
+    };
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE
+
+#endif // PROMOTIONMODEL_H