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diff --git a/src/plugins/qmldesigner/core/include/modelmerger.h b/src/plugins/qmldesigner/core/include/modelmerger.h
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+++ b/src/plugins/qmldesigner/core/include/modelmerger.h
@@ -0,0 +1,59 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef MODELMERGER_H
+#define MODELMERGER_H
+
+
+#include <QWeakPointer>
+
+namespace QmlDesigner {
+
+class AbstractView;
+class ModelNode;
+
+class ModelMerger
+{
+public:
+    ModelMerger(AbstractView *view) : m_view(view) {}
+
+    ModelNode insertModel(const ModelNode &modelNode);
+    void replaceModel(const ModelNode &modelNode);
+
+protected:
+    AbstractView *view() const
+    { return m_view.data(); }
+
+private:
+    QWeakPointer<AbstractView> m_view;
+};
+
+} //namespace QmlDesigner
+
+#endif // MODELMERGER_H