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diff --git a/include/vcl/gfxlink.hxx b/include/vcl/gfxlink.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_VCL_GFXLINK_HXX
+#define INCLUDED_VCL_GFXLINK_HXX
+
+#include <rtl/ustring.hxx>
+#include <tools/gen.hxx>
+#include <vcl/dllapi.h>
+#include <vcl/mapmod.hxx>
+#include <memory>
+
+class SvStream;
+
+/** GfxLink graphic types that are supported by GfxLink.
+ *
+ * It is important that the numbers for native types stay the same, because
+ * they are used in serialization to MTF.
+ */
+enum class GfxLinkType
+{
+    NONE         = 0,
+    EpsBuffer    = 1,
+    NativeGif    = 2,
+    NativeJpg    = 3,
+    NativePng    = 4,
+    NativeTif    = 5,
+    NativeWmf    = 6,
+    NativeMet    = 7,
+    NativePct    = 8,
+    NativeSvg    = 9,
+    NativeMov    = 10,
+    NativeBmp    = 11,
+    NativePdf    = 12, // If a new type is added, make sure to change NativeLast too
+
+    // Alias for when the first native type starts and last native
+    // type ends.
+    NativeFirst  = NativeGif,
+    NativeLast   = NativePdf,
+};
+
+class Graphic;
+
+class VCL_DLLPUBLIC GfxLink
+{
+private:
+    GfxLinkType     meType;
+    sal_uInt32      mnUserId;
+    mutable std::shared_ptr<sal_uInt8> mpSwapInData;
+    mutable size_t  maHash;
+    sal_uInt32      mnSwapInDataSize;
+    MapMode         maPrefMapMode;
+    Size            maPrefSize;
+    bool            mbPrefMapModeValid;
+    bool            mbPrefSizeValid;
+
+    SAL_DLLPRIVATE std::shared_ptr<sal_uInt8> GetSwapInData() const;
+public:
+                        GfxLink();
+
+                        // pBuff = The Graphic data. This class takes ownership of this
+                        GfxLink( std::unique_ptr<sal_uInt8[]> pBuf, sal_uInt32 nBufSize, GfxLinkType nType );
+
+    bool                operator==( const GfxLink& ) const;
+
+    GfxLinkType         GetType() const { return meType;}
+
+    size_t              GetHash() const;
+
+    void                SetUserId( sal_uInt32 nUserId ) { mnUserId = nUserId; }
+    sal_uInt32          GetUserId() const { return mnUserId; }
+
+    sal_uInt32          GetDataSize() const { return mnSwapInDataSize;}
+    const sal_uInt8*    GetData() const;
+
+    const Size&         GetPrefSize() const { return maPrefSize;}
+    void                SetPrefSize( const Size& rPrefSize );
+    bool                IsPrefSizeValid() const { return mbPrefSizeValid;}
+
+    const MapMode&      GetPrefMapMode() const { return maPrefMapMode;}
+    void                SetPrefMapMode( const MapMode& rPrefMapMode );
+    bool                IsPrefMapModeValid() const { return mbPrefMapModeValid;}
+
+    bool                IsNative() const;
+
+    bool                LoadNative( Graphic& rGraphic );
+
+    bool                ExportNative( SvStream& rOStream ) const;
+
+    bool                IsEMF() const; // WMF & EMF stored under the same type (NativeWmf)
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */