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diff --git a/chart2/source/controller/dialogs/DataBrowser.hxx b/chart2/source/controller/dialogs/DataBrowser.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_DIALOGS_DATABROWSER_HXX
+#define INCLUDED_CHART2_SOURCE_CONTROLLER_DIALOGS_DATABROWSER_HXX
+
+#include <svtools/editbrowsebox.hxx>
+#include <vcl/fmtfield.hxx>
+#include <vcl/weld.hxx>
+
+#include <memory>
+#include <vector>
+
+namespace com::sun::star {
+    namespace awt {
+        class XWindow;
+    }
+    namespace chart2 {
+        class XChartDocument;
+    }
+}
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+class OutputDevice;
+
+namespace chart
+{
+
+class DataBrowserModel;
+class NumberFormatterWrapper;
+
+namespace impl
+{
+class SeriesHeader;
+class SeriesHeaderEdit;
+}
+
+class DataBrowser : public ::svt::EditBrowseBox
+{
+protected:
+    // EditBrowseBox overridables
+    virtual void PaintCell( OutputDevice& rDev, const tools::Rectangle& rRect, sal_uInt16 nColumnId ) const override;
+    virtual bool SeekRow( long nRow ) override;
+    virtual bool IsTabAllowed( bool bForward ) const override;
+    virtual ::svt::CellController* GetController( long nRow, sal_uInt16 nCol ) override;
+    virtual void InitController( ::svt::CellControllerRef& rController, long nRow, sal_uInt16 nCol ) override;
+    virtual bool SaveModified() override;
+    virtual void CursorMoved() override;
+    // called whenever the control of the current cell has been modified
+    virtual void CellModified() override;
+    virtual void ColumnResized( sal_uInt16 nColId ) override;
+    virtual void EndScroll() override;
+    virtual void MouseButtonDown( const BrowserMouseEvent& rEvt ) override;
+
+public:
+    DataBrowser(const css::uno::Reference<css::awt::XWindow> &rParent,
+                weld::Container* pColumns, weld::Container* pColors);
+
+    virtual ~DataBrowser() override;
+    virtual void dispose() override;
+
+    /** GetCellText returns the text at the given position
+        @param  nRow
+            the number of the row
+        @param  nColId
+            the ID of the column
+        @return
+            the text out of the cell
+    */
+    virtual OUString  GetCellText(long nRow, sal_uInt16 nColId) const override;
+
+    /** returns the number in the given cell. If a cell is empty or contains a
+        string, the result will be Nan
+    */
+    double GetCellNumber( long nRow, sal_uInt16 nColumnId ) const;
+
+    bool isDateTimeString( const OUString& aInputString, double& fOutDateTimeValue );
+
+    // Window
+    virtual void Resize() override;
+
+    void SetReadOnly( bool bNewState );
+    bool IsReadOnly() const { return m_bIsReadOnly;}
+
+    void SetDataFromModel( const css::uno::Reference< css::chart2::XChartDocument > & xChartDoc,
+                           const css::uno::Reference< css::uno::XComponentContext > & xContext );
+
+    // predicates to determine what actions are possible at the current cursor
+    // position.  This depends on the implementation of the according mutators
+    // below.  (They are used for enabling toolbar icons)
+    bool MayInsertRow() const;
+    bool MayInsertColumn() const;
+    bool MayDeleteRow() const;
+    bool MayDeleteColumn() const;
+
+    bool MayMoveUpRows() const;
+    bool MayMoveDownRows() const;
+    bool MayMoveRightColumns() const;
+    bool MayMoveLeftColumns() const;
+
+    // mutators mutating data
+    void InsertRow();
+    void InsertColumn();
+    void InsertTextColumn();
+    void RemoveRow();
+    void RemoveColumn();
+
+    using BrowseBox::RemoveColumn;
+    using BrowseBox::MouseButtonDown;
+
+    void MoveUpRow();
+    void MoveDownRow();
+    void MoveLeftColumn();
+    void MoveRightColumn();
+
+    void SetCursorMovedHdl( const Link<DataBrowser*,void>& rLink );
+
+    /// confirms all pending changes to be ready to be closed
+    bool EndEditing();
+
+    bool CellContainsNumbers( sal_uInt16 nCol ) const;
+
+    sal_uInt32 GetNumberFormatKey( sal_uInt16 nCol ) const;
+
+    bool IsEnableItem() const { return m_bDataValid;}
+    bool IsDataValid() const;
+    void ShowWarningBox();
+    bool ShowQueryBox();
+
+    void RenewSeriesHeaders();
+
+private:
+    css::uno::Reference< css::chart2::XChartDocument > m_xChartDoc;
+    std::unique_ptr< DataBrowserModel > m_apDataBrowserModel;
+
+    typedef std::vector< std::shared_ptr< impl::SeriesHeader > > tSeriesHeaderContainer;
+    tSeriesHeaderContainer m_aSeriesHeaders;
+
+    std::shared_ptr< NumberFormatterWrapper >  m_spNumberFormatterWrapper;
+
+    /// the row that is currently painted
+    long                m_nSeekRow;
+    bool                m_bIsReadOnly;
+    bool                m_bDataValid;
+
+    VclPtr<FormattedField>      m_aNumberEditField;
+    VclPtr<Edit>                m_aTextEditField;
+    weld::Container*            m_pColumnsWin;
+    weld::Container*            m_pColorsWin;
+
+    /// note: m_aNumberEditField must precede this member!
+    ::svt::CellControllerRef    m_rNumberEditController;
+    /// note: m_aTextEditField must precede this member!
+    ::svt::CellControllerRef    m_rTextEditController;
+
+    Link<DataBrowser*,void>     m_aCursorMovedHdlLink;
+
+    void clearHeaders();
+    void RenewTable();
+    void ImplAdjustHeaderControls();
+
+    OUString GetColString( sal_Int32 nColumnId ) const;
+
+    DECL_LINK( SeriesHeaderGotFocus, impl::SeriesHeaderEdit&, void );
+    DECL_LINK( SeriesHeaderChanged,  impl::SeriesHeaderEdit&, void );
+
+    DataBrowser( const DataBrowser & ) = delete;
+};
+
+} // namespace chart
+
+#endif // INCLUDED_CHART2_SOURCE_CONTROLLER_DIALOGS_DATABROWSER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */