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diff --git a/sc/inc/charthelper.hxx b/sc/inc/charthelper.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_SC_INC_CHARTHELPER_HXX
+#define INCLUDED_SC_INC_CHARTHELPER_HXX
+
+#include "rangelst.hxx"
+
+namespace com::sun::star::chart2 { class XChartDocument; }
+namespace com::sun::star::uno { template <typename > class Sequence; }
+
+class SdrObject;
+class SdrPage;
+class ScModelObj;
+
+typedef ::std::vector< ScRangeList > ScRangeListVector;
+
+/** Use this to handle charts in a calc document
+*/
+class ScChartHelper
+{
+public:
+    static sal_uInt16 DoUpdateAllCharts( ScDocument* pDoc );
+    static void AdjustRangesOfChartsOnDestinationPage( const ScDocument* pSrcDoc, ScDocument* pDestDoc, const SCTAB nSrcTab, const SCTAB nDestTab );
+    static void UpdateChartsOnDestinationPage( ScDocument* pDestDoc, const SCTAB nDestTab );
+    static css::uno::Reference< css::chart2::XChartDocument > GetChartFromSdrObject( const SdrObject* pObject );
+    static void GetChartRanges( const css::uno::Reference< css::chart2::XChartDocument >& xChartDoc,
+            std::vector< OUString >& rRanges );
+    static void SetChartRanges( const css::uno::Reference< css::chart2::XChartDocument >& xChartDoc,
+            const css::uno::Sequence< OUString >& rRanges );
+
+    static void AddRangesIfProtectedChart( ScRangeListVector& rRangesVector, const ScDocument* pDocument, SdrObject* pObject );
+    static void FillProtectedChartRangesVector( ScRangeListVector& rRangesVector, const ScDocument* pDocument, const SdrPage* pPage );
+    static void GetChartNames( ::std::vector< OUString >& rChartNames, const SdrPage* pPage );
+    static void CreateProtectedChartListenersAndNotify( ScDocument* pDoc, const SdrPage* pPage, ScModelObj* pModelObj, SCTAB nTab,
+        const ScRangeListVector& rRangesVector, const ::std::vector< OUString >& rExcludedChartNames, bool bSameDoc = true );
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */