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diff --git a/chart2/source/controller/chartapiwrapper/ChartDataWrapper.hxx b/chart2/source/controller/chartapiwrapper/ChartDataWrapper.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_CHARTAPIWRAPPER_CHARTDATAWRAPPER_HXX
+#define INCLUDED_CHART2_SOURCE_CONTROLLER_CHARTAPIWRAPPER_CHARTDATAWRAPPER_HXX
+
+#include <MutexContainer.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <comphelper/interfacecontainer2.hxx>
+#include <com/sun/star/chart2/XAnyDescriptionAccess.hpp>
+#include <com/sun/star/chart/XDateCategories.hpp>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/EventObject.hpp>
+
+#include <memory>
+
+namespace chart
+{
+namespace wrapper
+{
+
+class Chart2ModelContact;
+struct lcl_Operator;
+
+class ChartDataWrapper final : public MutexContainer, public
+    ::cppu::WeakImplHelper<
+    css::chart2::XAnyDescriptionAccess,
+    css::chart::XDateCategories,
+    css::lang::XServiceInfo,
+    css::lang::XEventListener,
+    css::lang::XComponent >
+{
+public:
+    explicit ChartDataWrapper(const std::shared_ptr<Chart2ModelContact>& spChart2ModelContact);
+    ChartDataWrapper(const std::shared_ptr<Chart2ModelContact>& spChart2ModelContact
+        , const css::uno::Reference< css::chart::XChartData >& xNewData );
+    virtual ~ChartDataWrapper() override;
+
+    /// XServiceInfo declarations
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+private:
+    // ____ XDateCategories ____
+    virtual css::uno::Sequence< double > SAL_CALL getDateCategories() override;
+    virtual void SAL_CALL setDateCategories( const css::uno::Sequence< double >& rDates ) override;
+
+    // ____ XAnyDescriptionAccess ____
+    virtual css::uno::Sequence< css::uno::Sequence< css::uno::Any > > SAL_CALL
+        getAnyRowDescriptions() override;
+    virtual void SAL_CALL setAnyRowDescriptions(
+        const css::uno::Sequence< css::uno::Sequence< css::uno::Any > >& aRowDescriptions ) override;
+    virtual css::uno::Sequence< css::uno::Sequence< css::uno::Any > > SAL_CALL
+        getAnyColumnDescriptions() override;
+    virtual void SAL_CALL setAnyColumnDescriptions(
+        const css::uno::Sequence< css::uno::Sequence< css::uno::Any > >& aColumnDescriptions ) override;
+
+    // ____ XComplexDescriptionAccess (base of XAnyDescriptionAccess) ____
+    virtual css::uno::Sequence< css::uno::Sequence< OUString > > SAL_CALL
+        getComplexRowDescriptions() override;
+    virtual void SAL_CALL setComplexRowDescriptions(
+        const css::uno::Sequence< css::uno::Sequence< OUString > >& aRowDescriptions ) override;
+    virtual css::uno::Sequence< css::uno::Sequence< OUString > > SAL_CALL
+        getComplexColumnDescriptions() override;
+    virtual void SAL_CALL setComplexColumnDescriptions(
+        const css::uno::Sequence< css::uno::Sequence< OUString > >& aColumnDescriptions ) override;
+
+    // ____ XChartDataArray (base of XComplexDescriptionAccess) ____
+    virtual css::uno::Sequence< css::uno::Sequence< double > > SAL_CALL getData() override;
+    virtual void SAL_CALL setData( const css::uno::Sequence< css::uno::Sequence< double > >& aData ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getRowDescriptions() override;
+    virtual void SAL_CALL setRowDescriptions( const css::uno::Sequence< OUString >& aRowDescriptions ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getColumnDescriptions() override;
+    virtual void SAL_CALL setColumnDescriptions( const css::uno::Sequence< OUString >& aColumnDescriptions ) override;
+
+    // ____ XChartData (base of XChartDataArray) ____
+    virtual void SAL_CALL addChartDataChangeEventListener( const css::uno::Reference< css::chart::XChartDataChangeEventListener >& aListener ) override;
+    virtual void SAL_CALL removeChartDataChangeEventListener( const css::uno::Reference< css::chart::XChartDataChangeEventListener >& aListener ) override;
+    virtual double SAL_CALL getNotANumber() override;
+    virtual sal_Bool SAL_CALL isNotANumber( double nNumber ) override;
+
+    // ____ XComponent ____
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener( const css::uno::Reference< css::lang::XEventListener >& xListener ) override;
+    virtual void SAL_CALL removeEventListener( const css::uno::Reference< css::lang::XEventListener >& aListener ) override;
+
+    // ____ XEventListener ____
+    virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+    void fireChartDataChangeEvent( css::chart::ChartDataChangeEvent& aEvent );
+
+    void switchToInternalDataProvider();
+    void initDataAccess();
+    void applyData( lcl_Operator& rDataOperator );
+
+    css::uno::Reference< css::chart2::XAnyDescriptionAccess > m_xDataAccess;
+
+    std::shared_ptr< Chart2ModelContact >   m_spChart2ModelContact;
+    ::comphelper::OInterfaceContainerHelper2      m_aEventListenerContainer;
+};
+
+} //  namespace wrapper
+} //  namespace chart
+
+// INCLUDED_CHART2_SOURCE_CONTROLLER_CHARTAPIWRAPPER_CHARTDATAWRAPPER_HXX
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */