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diff --git a/sd/source/filter/eppt/epptooxml.hxx b/sd/source/filter/eppt/epptooxml.hxx
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+++ b/sd/source/filter/eppt/epptooxml.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 .
+ */
+
+#pragma once
+
+#include <oox/core/xmlfilterbase.hxx>
+#include <oox/vml/vmldrawing.hxx>
+#include <oox/export/shapes.hxx>
+#include "epptbase.hxx"
+
+using ::sax_fastparser::FSHelperPtr;
+
+namespace svx
+{
+class Theme;
+}
+
+namespace oox::core {
+
+struct LayoutInfo
+{
+    std::vector< sal_Int32 > mnFileIdArray;
+};
+
+enum PlaceholderType
+{
+    None,
+    SlideImage,
+    Notes,
+    Header,
+    Footer,
+    SlideNumber,
+    DateAndTime,
+    Outliner,
+    Title,
+    Subtitle
+};
+
+class PowerPointShapeExport;
+
+class PowerPointExport final : public XmlFilterBase, public PPTWriterBase
+{
+    friend class PowerPointShapeExport;
+public:
+
+    PowerPointExport(const css::uno::Reference<css::uno::XComponentContext> & rContext, const css::uno::Sequence<css::uno::Any>& rArguments);
+
+    virtual ~PowerPointExport() override;
+
+    // from FilterBase
+    virtual bool importDocument() noexcept override;
+    virtual bool exportDocument() override;
+
+    // only needed for import, leave them empty, refactor later XmlFilterBase to export and import base?
+    virtual oox::vml::Drawing* getVmlDrawing() override { return nullptr; }
+    virtual const oox::drawingml::Theme* getCurrentTheme() const override { return nullptr; }
+    virtual oox::drawingml::table::TableStyleListPtr getTableStyles() override { return oox::drawingml::table::TableStyleListPtr(); }
+    virtual oox::drawingml::chart::ChartConverter* getChartConverter() override { return nullptr; }
+
+    static const char* GetSideDirection( sal_uInt8 nDirection );
+    static const char* GetCornerDirection( sal_uInt8 nDirection );
+    static const char* Get8Direction( sal_uInt8 nDirection );
+    static       int   GetPPTXLayoutId( int nOffset );
+
+    sal_Int32 GetShapeID(const css::uno::Reference<css::drawing::XShape>& rXShape);
+    sal_Int32 GetNextAnimationNodeID();
+
+    void embedEffectAudio(const FSHelperPtr& pFS, const OUString& sUrl, OUString& sRelId, OUString& sName);
+
+private:
+
+    virtual void ImplWriteSlide( sal_uInt32 nPageNum, sal_uInt32 nMasterNum, sal_uInt16 nMode,
+                                 bool bHasBackground, css::uno::Reference< css::beans::XPropertySet > const & aXBackgroundPropSet ) override;
+    virtual void ImplWriteNotes( sal_uInt32 nPageNum ) override;
+    virtual void ImplWriteSlideMaster( sal_uInt32 nPageNum, css::uno::Reference< css::beans::XPropertySet > const & aXBackgroundPropSet ) override;
+    void ImplWritePPTXLayout( sal_Int32 nOffset, sal_uInt32 nMasterNum );
+
+    /// Export the color set part of a theme.
+    static bool WriteColorSets(const FSHelperPtr& pFS, svx::Theme* pTheme);
+
+    /// Same as WriteColorSets(), but works from a grab-bag.
+    bool WriteColorSchemes(const FSHelperPtr& pFS, const OUString& rThemePath);
+
+    static void WriteDefaultColorSchemes(const FSHelperPtr& pFS);
+    void WriteTheme( sal_Int32 nThemeNum, svx::Theme* pTheme );
+
+    virtual bool ImplCreateDocument() override;
+    virtual bool ImplCreateMainNotes() override;
+    virtual ::oox::ole::VbaProject* implCreateVbaProject() const override;
+    void WriteNotesMaster();
+
+    bool WriteComments( sal_uInt32 nPageNum );
+    void ImplWriteBackground( const ::sax_fastparser::FSHelperPtr& pFS, const css::uno::Reference< css::beans::XPropertySet >& aXBackgroundPropSet );
+    void WriteTransition( const ::sax_fastparser::FSHelperPtr& pFS );
+
+    sal_Int32 GetLayoutFileId( sal_Int32 nOffset, sal_uInt32 nMasterNum );
+
+    // shapes
+    void WriteShapeTree( const ::sax_fastparser::FSHelperPtr& pFS, PageType ePageType, bool bMaster );
+
+    sal_uInt32 GetNewSlideId() { return mnSlideIdMax ++; }
+    sal_uInt32 GetNewSlideMasterId() { return mnSlideMasterIdMax ++; }
+    sal_Int32 GetAuthorIdAndLastIndex( const OUString& sAuthor, sal_Int32& nLastIndex );
+
+    // Write docProps/core.xml and docprops/custom.xml and docprops/app.xml
+    void writeDocumentProperties();
+
+    void WriteCustomSlideShow();
+
+    void AddLayoutIdAndRelation( const ::sax_fastparser::FSHelperPtr& pFS, sal_Int32 nLayoutFileId );
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    static void WriteDiagram(const FSHelperPtr& pFS, PowerPointShapeExport& rDML, const css::uno::Reference<css::drawing::XShape>& rXShape, int nDiagramId);
+
+    /** Create a new placeholder index for a master placeholder shape
+
+        @param rXShape Master placeholder shape
+        @returns Placeholder index
+    */
+    sal_Int32 CreateNewPlaceholderIndex(const css::uno::Reference<css::drawing::XShape>& rXShape);
+    css::uno::Reference<css::drawing::XShape> GetReferencedPlaceholderXShape(const PlaceholderType eType, PageType ePageType) const;
+    void WritePlaceholderReferenceShapes(PowerPointShapeExport& rDML, PageType ePageType);
+
+    /// Should we export as .pptm, ie. do we contain macros?
+    bool mbPptm;
+
+    // Export as a template
+    bool mbExportTemplate;
+
+    ::sax_fastparser::FSHelperPtr mPresentationFS;
+
+    LayoutInfo mLayoutInfo[EPP_LAYOUT_SIZE];
+    std::vector< ::sax_fastparser::FSHelperPtr > mpSlidesFSArray;
+    sal_Int32 mnLayoutFileIdMax;
+
+    sal_uInt32 mnSlideIdMax;
+    sal_uInt32 mnSlideMasterIdMax;
+    sal_uInt32 mnAnimationNodeIdMax;
+
+    sal_uInt32 mnDiagramId;
+
+    std::vector<OUString> maRelId;
+
+    bool mbCreateNotes;
+
+    ::oox::drawingml::ShapeExport::ShapeHashMap maShapeMap;
+
+    sal_Int32 mnPlaceholderIndexMax; ///< Last used placeholder index
+    /// Map of placeholder indexes for Master placeholders
+    std::unordered_map< css::uno::Reference<css::drawing::XShape>, sal_Int32 > maPlaceholderShapeToIndexMap;
+
+    struct AuthorComments {
+        sal_Int32 nId;
+        sal_Int32 nLastIndex;
+    };
+    typedef std::unordered_map< OUString, struct AuthorComments > AuthorsMap;
+    AuthorsMap maAuthors;
+
+    void WriteAuthors();
+
+    void WritePresentationProps();
+
+    /// If this is PPTM, output the VBA stream.
+    void WriteVBA();
+
+    void WriteModifyVerifier();
+};
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */