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diff --git a/chart2/source/controller/main/ChartModelClone.hxx b/chart2/source/controller/main/ChartModelClone.hxx
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+++ b/chart2/source/controller/main/ChartModelClone.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_CHARTMODELCLONE_HXX
+#define INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_CHARTMODELCLONE_HXX
+
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.h>
+
+namespace com::sun::star::chart2 { class XInternalDataProvider; }
+namespace com::sun::star::frame { class XModel; }
+
+namespace chart
+{
+
+    enum ModelFacet
+    {
+        E_MODEL,
+        E_MODEL_WITH_DATA,
+        E_MODEL_WITH_SELECTION
+    };
+
+    class ChartModelClone
+    {
+    public:
+        ChartModelClone(
+            const css::uno::Reference< css::frame::XModel >& i_model,
+            const ModelFacet i_facet
+        );
+
+        ~ChartModelClone();
+
+        ChartModelClone(const ChartModelClone&) = delete;
+        const ChartModelClone& operator=(const ChartModelClone&) = delete;
+
+        ModelFacet getFacet() const;
+
+        void applyToModel( const css::uno::Reference< css::frame::XModel >& i_model ) const;
+
+        static void applyModelContentToModel(
+            const css::uno::Reference< css::frame::XModel > & i_model,
+            const css::uno::Reference< css::frame::XModel > & i_modelToCopyFrom,
+            const css::uno::Reference< css::chart2::XInternalDataProvider > & i_data );
+
+        void dispose();
+
+    private:
+        bool    impl_isDisposed() const { return !m_xModelClone.is(); }
+
+    private:
+        css::uno::Reference< css::frame::XModel >                 m_xModelClone;
+        css::uno::Reference< css::chart2::XInternalDataProvider > m_xDataClone;
+        css::uno::Any                                             m_aSelection;
+    };
+
+} // namespace chart
+
+#endif // INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_CHARTMODELCLONE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */