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diff --git a/chart2/source/inc/CloneHelper.hxx b/chart2/source/inc/CloneHelper.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#ifndef CHART2_CLONEHELPER_HXX
+#define CHART2_CLONEHELPER_HXX
+
+#include <com/sun/star/util/XCloneable.hpp>
+
+#include <map>
+#include <functional>
+#include <algorithm>
+
+namespace chart
+{
+namespace CloneHelper
+{
+
+/// functor that clones a UNO-Reference
+template< class Interface >
+    struct CreateRefClone : public ::std::unary_function< Interface, Interface >
+{
+    Interface operator() ( const Interface & xOther )
+    {
+        Interface xResult;
+        ::com::sun::star::uno::Reference< ::com::sun::star::util::XCloneable >
+              xCloneable( xOther, ::com::sun::star::uno::UNO_QUERY );
+        if( xCloneable.is())
+            xResult.set( xCloneable->createClone(), ::com::sun::star::uno::UNO_QUERY );
+
+        return xResult;
+    }
+};
+
+/// functor that clones a map element with a UNO-Reference as value
+template< typename Key, class Interface >
+    struct CreateRefWithKeyClone : public ::std::unary_function<
+        ::std::pair<  Key, Interface >,
+        ::std::pair<  Key, Interface > >
+{
+    ::std::pair< Key, Interface > operator() (
+        const ::std::pair< Key, Interface > & rOther )
+    {
+        Interface xResult;
+        ::com::sun::star::uno::Reference< ::com::sun::star::util::XCloneable >
+              xCloneable( rOther.second, ::com::sun::star::uno::UNO_QUERY );
+        if( xCloneable.is())
+            xResult.set( xCloneable->createClone(), ::com::sun::star::uno::UNO_QUERY );
+
+        return ::std::make_pair< Key, Interface >( rOther.first, xResult );
+    }
+};
+
+/// clones a vector of UNO-References
+template< class Interface >
+    void CloneRefVector(
+        const ::std::vector< Interface > & rSource,
+        ::std::vector< Interface > & rDestination )
+{
+    ::std::transform( rSource.begin(), rSource.end(),
+                      ::std::back_inserter( rDestination ),
+                      CreateRefClone< Interface >());
+}
+
+template< typename  Key, class Interface >
+    void CloneRefPairVector(
+        const ::std::vector< ::std::pair< Key, Interface > > & rSource,
+        ::std::vector< ::std::pair< Key, Interface > > & rDestination )
+{
+    ::std::transform( rSource.begin(), rSource.end(),
+                      ::std::back_inserter( rDestination ),
+                      CreateRefWithKeyClone< Key, Interface >());
+}
+
+/// clones a map of elements with a UNO-Reference as value
+template< typename Key, class Interface >
+    void CloneRefMap(
+        const ::std::map< Key, Interface > & rSource,
+        ::std::map< Key, Interface > & rDestination )
+{
+    ::std::transform( rSource.begin(), rSource.end(),
+                      ::std::inserter( rDestination, rDestination.begin() ),
+                      CreateRefWithKeyClone< const Key, Interface >());
+}
+
+/// clones a UNO-sequence of UNO-References
+template< class Interface >
+    void CloneRefSequence(
+        const ::com::sun::star::uno::Sequence< Interface > & rSource,
+        ::com::sun::star::uno::Sequence< Interface > & rDestination )
+{
+    rDestination.realloc( rSource.getLength());
+    ::std::transform( rSource.getConstArray(), rSource.getConstArray() + rSource.getLength(),
+                      rDestination.getArray(),
+                      CreateRefClone< Interface >());
+}
+
+} //  namespace CloneHelper
+} //  namespace chart
+
+// CHART2_CLONEHELPER_HXX
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */