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diff --git a/slideshow/source/engine/animationnodes/setactivity.hxx b/slideshow/source/engine/animationnodes/setactivity.hxx
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+++ b/slideshow/source/engine/animationnodes/setactivity.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_ANIMATIONNODES_SETACTIVITY_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_ANIMATIONNODES_SETACTIVITY_HXX
+
+#include <tools/diagnose_ex.h>
+
+#include <animationactivity.hxx>
+#include <animatableshape.hxx>
+#include <shapeattributelayer.hxx>
+#include <activitiesfactory.hxx>
+
+namespace slideshow {
+namespace internal {
+
+/** Templated setter for animation values
+
+    This template class implements the AnimationActivity
+    interface, but only the perform() and
+    setAttributeLayer() methods are functional. To be used for set animations.
+
+    @see AnimationSetNode.
+*/
+template <class AnimationT>
+class SetActivity : public AnimationActivity
+{
+public:
+    typedef ::std::shared_ptr< AnimationT >   AnimationSharedPtrT;
+    typedef typename AnimationT::ValueType      ValueT;
+
+    SetActivity( const ActivitiesFactory::CommonParameters& rParms,
+                 const AnimationSharedPtrT&                 rAnimation,
+                 const ValueT&                              rToValue )
+        : mpAnimation( rAnimation ),
+          mpShape(),
+          mpAttributeLayer(),
+          mpEndEvent( rParms.mpEndEvent ),
+          mrEventQueue( rParms.mrEventQueue ),
+          maToValue( rToValue ),
+          mbIsActive(true)
+    {
+        ENSURE_OR_THROW( mpAnimation, "Invalid animation" );
+    }
+
+    virtual void dispose() override
+    {
+        mbIsActive = false;
+        mpAnimation.reset();
+        mpShape.reset();
+        mpAttributeLayer.reset();
+        // discharge end event:
+        if (mpEndEvent && mpEndEvent->isCharged())
+            mpEndEvent->dispose();
+        mpEndEvent.reset();
+    }
+
+    virtual double calcTimeLag() const override
+    {
+        return 0.0;
+    }
+
+    virtual bool perform() override
+    {
+        if (! isActive())
+            return false;
+        // we're going inactive immediately:
+        mbIsActive = false;
+
+        if (mpAnimation && mpAttributeLayer && mpShape) {
+            mpAnimation->start( mpShape, mpAttributeLayer );
+            (*mpAnimation)(maToValue);
+            mpAnimation->end();
+        }
+        // fire end event, if any
+        if (mpEndEvent)
+            mrEventQueue.addEvent( mpEndEvent );
+
+        return false; // don't reinsert
+    }
+
+    virtual bool isActive() const override
+    {
+        return mbIsActive;
+    }
+
+    virtual void dequeued() override
+    {
+    }
+
+    virtual void end() override
+    {
+        perform();
+    }
+
+    virtual void setTargets( const AnimatableShapeSharedPtr&        rShape,
+                             const ShapeAttributeLayerSharedPtr&    rAttrLayer ) override
+    {
+        ENSURE_OR_THROW( rShape, "Invalid shape" );
+        ENSURE_OR_THROW( rAttrLayer, "Invalid attribute layer" );
+
+        mpShape = rShape;
+        mpAttributeLayer = rAttrLayer;
+    }
+
+private:
+    AnimationSharedPtrT             mpAnimation;
+    AnimatableShapeSharedPtr        mpShape;
+    ShapeAttributeLayerSharedPtr    mpAttributeLayer;
+    EventSharedPtr                  mpEndEvent;
+    EventQueue&                     mrEventQueue;
+    ValueT                          maToValue;
+    bool                            mbIsActive;
+};
+
+template <class AnimationT> AnimationActivitySharedPtr makeSetActivity(
+    const ActivitiesFactory::CommonParameters& rParms,
+    const ::std::shared_ptr< AnimationT >&   rAnimation,
+    const typename AnimationT::ValueType&      rToValue )
+{
+    return std::make_shared<SetActivity<AnimationT>>(rParms,rAnimation,rToValue);
+}
+
+} // namespace internal
+} // namespace presentation
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_ANIMATIONNODES_SETACTIVITY_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */