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diff --git a/include/oox/export/vmlexport.hxx b/include/oox/export/vmlexport.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_OOX_EXPORT_VMLEXPORT_HXX
+#define INCLUDED_OOX_EXPORT_VMLEXPORT_HXX
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <editeng/outlobj.hxx>
+#include <filter/msfilter/escherex.hxx>
+#include <oox/dllapi.h>
+#include <rtl/strbuf.hxx>
+#include <rtl/string.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <sax/fshelper.hxx>
+#include <vcl/checksum.hxx>
+#include <rtl/ref.hxx>
+
+namespace com::sun::star {
+    namespace drawing {
+        class XShape;
+    }
+}
+
+namespace oox::drawingml {
+   class DrawingML;
+}
+
+
+namespace sax_fastparser {
+    class FastAttributeList;
+}
+
+class Point;
+namespace tools { class Rectangle; }
+class SdrObject;
+
+namespace oox::vml {
+
+/// Interface to be implemented by the parent exporter that knows how to handle shape text.
+class OOX_DLLPUBLIC VMLTextExport
+{
+public:
+    virtual void WriteOutliner(const OutlinerParaObject& rParaObj) = 0;
+    virtual oox::drawingml::DrawingML& GetDrawingML() = 0;
+    /// Write the contents of the textbox that is associated to this shape in VML format.
+    virtual void WriteVMLTextBox(css::uno::Reference<css::drawing::XShape> xShape) = 0;
+protected:
+    VMLTextExport() {}
+    virtual ~VMLTextExport() {}
+};
+
+class OOX_DLLPUBLIC VMLExport : public EscherEx
+{
+    /// Fast serializer to output the data
+    ::sax_fastparser::FSHelperPtr m_pSerializer;
+
+    /// Parent exporter, used for text callback.
+    VMLTextExport* m_pTextExport;
+
+    /// Anchoring - Writer specific properties
+    sal_Int16 m_eHOri, m_eVOri, m_eHRel, m_eVRel;
+    rtl::Reference<sax_fastparser::FastAttributeList> m_pWrapAttrList;
+    bool m_bInline; // css::text::TextContentAnchorType_AS_CHARACTER
+    bool m_IsFollowingTextFlow = false;
+
+    /// The object we're exporting.
+    const SdrObject* m_pSdrObject;
+
+    /// Fill the shape attributes as they come.
+    rtl::Reference<::sax_fastparser::FastAttributeList> m_pShapeAttrList;
+
+    /// Remember the shape type.
+    sal_uInt32 m_nShapeType;
+
+    /// Remember the shape flags.
+    ShapeFlag m_nShapeFlags;
+
+    /// Remember style, the most important shape attribute ;-)
+    OStringBuffer m_ShapeStyle;
+
+    /// style for textbox
+    OStringBuffer m_TextboxStyle;
+
+    /// Remember the generated shape id.
+    OString m_sShapeId;
+
+    /// Remember which shape types we had already written.
+    std::vector<bool> m_aShapeTypeWritten;
+
+    /// It seems useless to write out an XML_ID attribute next to XML_id which defines the actual shape id
+    bool m_bSkipwzName;
+
+    /// Use '#' mark for type attribute (check Type Attribute of VML shape in OOXML documentation)
+    bool m_bUseHashMarkForType;
+
+    /** There is a shapeid generation mechanism in EscherEx, but it does not seem to work
+    *   so override the existing behavior to get actually unique ids.
+    */
+    bool m_bOverrideShapeIdGeneration;
+
+    /// Prefix for overridden shape id generation (used if m_bOverrideShapeIdGeneration is true)
+    OString m_sShapeIDPrefix;
+
+    /// Counter for generating shape ids (used if m_bOverrideShapeIdGeneration is true)
+    sal_uInt64 m_nShapeIDCounter;
+
+public:
+                        VMLExport( ::sax_fastparser::FSHelperPtr const & pSerializer, VMLTextExport* pTextExport = nullptr);
+    virtual             ~VMLExport() override;
+
+    const ::sax_fastparser::FSHelperPtr&
+                        GetFS() const { return m_pSerializer; }
+
+    void SetFS(const ::sax_fastparser::FSHelperPtr& pSerializer);
+
+    /// Export the sdr object as VML.
+    ///
+    /// Call this when you need to export the object as VML.
+    OString const & AddSdrObject( const SdrObject& rObj,
+            bool const bIsFollowingTextFlow = false,
+            sal_Int16 eHOri = -1, sal_Int16 eVOri = -1, sal_Int16 eHRel = -1,
+            sal_Int16 eVRel = -1,
+            sax_fastparser::FastAttributeList* pWrapAttrList = nullptr,
+            const bool bOOxmlExport = false );
+    OString const & AddInlineSdrObject( const SdrObject& rObj, const bool bOOxmlExport );
+    virtual void  AddSdrObjectVMLObject( const SdrObject& rObj) override;
+    static bool IsWaterMarkShape(std::u16string_view rStr);
+
+    void    SetSkipwzName(bool bSkipwzName) { m_bSkipwzName = bSkipwzName; }
+    void    SetHashMarkForType(bool bUseHashMarkForType) { m_bUseHashMarkForType = bUseHashMarkForType; }
+    void    OverrideShapeIDGen(bool bOverrideShapeIdGeneration,
+                            const OString& sShapeIDPrefix = OString());
+    static OString GetVMLShapeTypeDefinition(std::string_view sShapeID, const bool bIsPictureFrame);
+
+protected:
+    /// Add an attribute to the generated <v:shape/> element.
+    ///
+    /// This should be called from within StartShape() to ensure that the
+    /// added attribute is preserved.
+    void                AddShapeAttribute( sal_Int32 nAttribute, const OString& sValue );
+
+    using EscherEx::StartShape;
+    using EscherEx::EndShape;
+
+    /// Override shape ID generation when m_bOverrideShapeIdGeneration is set to true
+    virtual sal_uInt32   GenerateShapeId() override;
+
+    /// Start the shape for which we just collected the information.
+    ///
+    /// Returns the element's tag number, -1 means we wrote nothing.
+    virtual sal_Int32   StartShape();
+
+    /// End the shape.
+    ///
+    /// The parameter is just what we got from StartShape().
+    virtual void        EndShape( sal_Int32 nShapeElement );
+    virtual void        Commit( EscherPropertyContainer& rProps, const tools::Rectangle& rRect ) override;
+
+private:
+
+    virtual void OpenContainer( sal_uInt16 nEscherContainer, int nRecInstance = 0 ) override;
+    virtual void CloseContainer() override;
+
+    virtual sal_uInt32 EnterGroup( const OUString& rShapeName, const tools::Rectangle* pBoundRect ) override;
+    virtual void LeaveGroup() override;
+
+    virtual void AddShape( sal_uInt32 nShapeType, ShapeFlag nShapeFlags, sal_uInt32 nShapeId = 0 ) override;
+
+private:
+    /// Create an OString representing the id from a numerical id.
+    OString ShapeIdString( sal_uInt32 nId );
+
+    /// Add flip X and\or flip Y
+    void AddFlipXY( );
+
+    /// Add starting and ending point of a line to the m_pShapeAttrList.
+    void AddLineDimensions( const tools::Rectangle& rRectangle );
+
+    /// Add position and size to the OStringBuffer.
+    void AddRectangleDimensions( OStringBuffer& rBuffer, const tools::Rectangle& rRectangle, bool rbAbsolutePos = true );
+};
+
+
+} // namespace oox::vml
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */