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diff --git a/slideshow/source/engine/shapes/gdimtftools.hxx b/slideshow/source/engine/shapes/gdimtftools.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_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/drawing/XDrawPage.hpp>
+
+#include <basegfx/range/b2drectangle.hxx>
+
+#include <tools.hxx>
+
+#include <vector>
+
+class MetaAction;
+class GDIMetaFile;
+class Graphic;
+
+
+namespace slideshow::internal
+    {
+        /// meta file loading specialities:
+        enum mtf_load_flags {
+            /// no flags
+            MTF_LOAD_NONE = 0,
+            /// the source of the metafile might be a foreign
+            /// application. The metafile is checked against unsupported
+            /// content, and, if necessary, returned as a pre-rendered
+            /// bitmap.
+            MTF_LOAD_FOREIGN_SOURCE = 2,
+            /// retrieve a meta file for the page background only
+            MTF_LOAD_BACKGROUND_ONLY = 4,
+            /// retrieve the drawing layer scroll text metafile
+            MTF_LOAD_SCROLL_TEXT_MTF = 8
+        };
+
+        // Animation info
+        // ==============
+
+        struct MtfAnimationFrame
+        {
+            MtfAnimationFrame( const GDIMetaFileSharedPtr& rMtf,
+                               double                      nDuration ) :
+                mpMtf( rMtf ),
+                mnDuration( nDuration )
+            {
+            }
+
+            /// Enables STL algos to be used for duration extraction
+            double getDuration() const
+            {
+                return mnDuration;
+            }
+
+            GDIMetaFileSharedPtr    mpMtf;
+            double                  mnDuration;
+        };
+
+        typedef ::std::vector< MtfAnimationFrame > VectorOfMtfAnimationFrames;
+
+
+        /** Retrieve a meta file for the given shape
+
+            @param xShape
+            XShape to retrieve a metafile for.
+
+            @param xContainingPage
+            The page that contains this shape. Needed for proper
+            import (currently, the UnoGraphicExporter needs this
+            information).
+
+        */
+        GDIMetaFileSharedPtr getMetaFile( const css::uno::Reference< css::lang::XComponent >&        xSource,
+                                          const css::uno::Reference< css::drawing::XDrawPage >&      xContainingPage,
+                                          int                                                        mtfLoadFlags,
+                                          const css::uno::Reference< css::uno::XComponentContext >&  rxContext );
+
+        /** Gets the next action offset for iterating meta actions which is most
+            often returns 1.
+        */
+        sal_Int32 getNextActionOffset( MetaAction * pCurrAct );
+
+        /** Extract a vector of animation frames from given Graphic.
+
+            @param o_rFrames
+            Resulting vector of animated metafiles
+
+            @param o_rLoopCount
+            Number of times the bitmap animation shall be repeated
+
+            @param rGraphic
+            Input graphic object, to extract animations from
+         */
+        bool getAnimationFromGraphic(VectorOfMtfAnimationFrames& o_rFrames,
+                                     sal_uInt32&                 o_rLoopCount,
+                                     const Graphic&              rGraphic);
+
+        /** Retrieve scroll text animation rectangles from given metafile
+
+            @return true, if both rectangles have been found, false
+            otherwise.
+         */
+        bool getRectanglesFromScrollMtf( ::basegfx::B2DRectangle&       o_rScrollRect,
+                                         ::basegfx::B2DRectangle&       o_rPaintRect,
+                                         const GDIMetaFileSharedPtr&    rMtf );
+}
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */