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diff --git a/include/oox/ppt/slidetransition.hxx b/include/oox/ppt/slidetransition.hxx
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+++ b/include/oox/ppt/slidetransition.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_PPT_SLIDETRANSITION_HXX
+#define INCLUDED_OOX_PPT_SLIDETRANSITION_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/presentation/AnimationSpeed.hpp>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace animations { class XTransitionFilter; }
+}
+
+namespace oox { class PropertyMap; }
+
+namespace oox::ppt {
+
+    class SlideTransition
+    {
+    public:
+        SlideTransition();
+        explicit SlideTransition(std::u16string_view );
+
+        void setSlideProperties( PropertyMap& props );
+        void setTransitionFilterProperties( const css::uno::Reference< css::animations::XTransitionFilter > & xFilter );
+
+        /// Set one of standard values for slide transition duration
+        void setOoxTransitionSpeed( sal_Int32 nToken );
+        /// Set slide transition time directly
+        void setOoxTransitionSpeed( double fDuration );
+        void setMode( bool bMode )
+            { mbMode = bMode; }
+        void setOoxAdvanceTime( sal_Int32 nAdvanceTime )
+            { mnAdvanceTime = nAdvanceTime; }
+
+    static sal_Int16 ooxToOdpDirection( ::sal_Int32 nOoxType );
+    static sal_Int16 ooxToOdpEightDirections( ::sal_Int32 nOoxType );
+    static sal_Int16 ooxToOdpCornerDirections( ::sal_Int32 nOoxType );
+    static sal_Int16 ooxToOdpBorderDirections( ::sal_Int32 nOoxType );
+    static sal_Int16 ooxToOdpSideDirections( ::sal_Int32 nOoxType );
+    static bool      ooxToOdpSideDirectionsDirectionNormal( ::sal_Int32 nOoxType );
+
+        void setOoxTransitionType( ::sal_Int32 OoxType,
+                                                             ::sal_Int32 param1, ::sal_Int32 param2 );
+
+        void setPresetTransition(std::u16string_view sPresetTransition);
+
+    private:
+        ::sal_Int16 mnTransitionType;
+        ::sal_Int16 mnTransitionSubType;
+        bool  mbTransitionDirectionNormal;
+        css::presentation::AnimationSpeed mnAnimationSpeed;
+        double mfTransitionDurationInSeconds;
+        bool  mbMode; /**< https://api.libreoffice.org/docs/common/ref/com/sun/star/animations/XTransitionFilter.html Mode property */
+        ::sal_Int32 mnAdvanceTime;
+        ::sal_Int32 mnTransitionFadeColor;
+    };
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */