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diff --git a/include/xmloff/SchXMLImportHelper.hxx b/include/xmloff/SchXMLImportHelper.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_XMLOFF_SCHXMLIMPORTHELPER_HXX
+#define INCLUDED_XMLOFF_SCHXMLIMPORTHELPER_HXX
+
+#include <memory>
+
+#include <salhelper/simplereferenceobject.hxx>
+#include <xmloff/families.hxx>
+#include <xmloff/xmltkmap.hxx>
+
+namespace com::sun::star::chart { class XChartDocument; }
+namespace com::sun::star::beans { class XPropertySet; }
+
+namespace com::sun::star {
+    namespace frame {
+        class XModel;
+    }
+    namespace xml {
+        namespace sax {
+            class XAttributeList;
+        }
+    }
+    namespace chart2 {
+        class XChartDocument;
+        class XDataSeries;
+    }
+}
+
+class SvXMLStylesContext;
+class SvXMLImportContext;
+class SvXMLImport;
+
+
+/** With this class you can import a <chart:chart> element containing
+    its data as <table:table> element or without internal table. In
+    the latter case you have to provide a table address mapper that
+    converts table addresses in XML format to the appropriate application
+    format.
+ */
+class SchXMLImportHelper final : public salhelper::SimpleReferenceObject
+{
+private:
+    css::uno::Reference< css::chart::XChartDocument > mxChartDoc;
+    SvXMLStylesContext* mpAutoStyles;
+
+    std::unique_ptr<SvXMLTokenMap> mpChartDocElemTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpTableElemTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpChartElemTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpPlotAreaElemTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpSeriesElemTokenMap;
+
+    std::unique_ptr<SvXMLTokenMap> mpChartAttrTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpPlotAreaAttrTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpCellAttrTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpSeriesAttrTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpPropMappingAttrTokenMap;
+    std::unique_ptr<SvXMLTokenMap> mpRegEquationAttrTokenMap;
+
+public:
+
+    SchXMLImportHelper();
+
+    /** get the context for reading the <chart:chart> element with subelements.
+        The result is stored in the XModel given if it also implements
+        XChartDocument
+     */
+    SvXMLImportContext* CreateChartContext(
+        SvXMLImport& rImport,
+        sal_uInt16 nPrefix, const OUString& rLocalName,
+        const css::uno::Reference< css::frame::XModel >& rChartModel,
+        const css::uno::Reference< css::xml::sax::XAttributeList >& rAttrList );
+
+    /** set the auto-style context that will be used to retrieve auto-styles
+        used inside the following <chart:chart> element to parse
+     */
+    void SetAutoStylesContext( SvXMLStylesContext* pAutoStyles ) { mpAutoStyles = pAutoStyles; }
+    SvXMLStylesContext* GetAutoStylesContext() const { return mpAutoStyles; }
+
+    /// Fill in the autostyle.
+    void FillAutoStyle(const OUString& rAutoStyleName, const css::uno::Reference<css::beans::XPropertySet>& rProp);
+
+    const css::uno::Reference< css::chart::XChartDocument >& GetChartDocument() const
+        { return mxChartDoc; }
+
+    const SvXMLTokenMap& GetDocElemTokenMap();
+    const SvXMLTokenMap& GetTableElemTokenMap();
+    const SvXMLTokenMap& GetChartElemTokenMap();
+    const SvXMLTokenMap& GetPlotAreaElemTokenMap();
+    const SvXMLTokenMap& GetSeriesElemTokenMap();
+    const SvXMLTokenMap& GetPropMappingAttrTokenMap();
+
+    const SvXMLTokenMap& GetChartAttrTokenMap();
+    const SvXMLTokenMap& GetPlotAreaAttrTokenMap();
+    const SvXMLTokenMap& GetCellAttrTokenMap();
+    const SvXMLTokenMap& GetSeriesAttrTokenMap();
+    const SvXMLTokenMap& GetRegEquationAttrTokenMap();
+
+    static XmlStyleFamily GetChartFamilyID() { return XmlStyleFamily::SCH_CHART_ID; }
+
+    /** @param bPushLastChartType If </sal_False>, in case a new chart type has to
+               be added (because it does not exist yet), it is appended at the
+               end of the chart-type container.  When </sal_True>, a new chart type
+               is added at one position before the last one, i.e. the formerly
+               last chart type is pushed back, so that it remains the last one.
+
+               This is needed when the global chart type is set to type A, but
+               the first series has type B. Then B should appear before A (done
+               by passing true).  Once a series of type A has been read,
+               following new chart types are again be added at the end (by
+               passing false).
+     */
+    static css::uno::Reference< css::chart2::XDataSeries > GetNewDataSeries(
+                    const css::uno::Reference< css::chart2::XChartDocument > & xDoc,
+                    sal_Int32 nCoordinateSystemIndex,
+                    const OUString & rChartTypeName,
+                    bool bPushLastChartType );
+
+    static void DeleteDataSeries(
+                    const css::uno::Reference< css::chart2::XDataSeries >& xSeries,
+                    const css::uno::Reference< css::chart2::XChartDocument > & xDoc );
+};
+
+#endif // INCLUDED_XMLOFF_SCHXMLIMPORTHELPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */