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diff --git a/include/svx/sdr/contact/viewcontactofe3d.hxx b/include/svx/sdr/contact/viewcontactofe3d.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 _SDR_CONTACT_VIEWCONTACTOFE3D_HXX
+#define _SDR_CONTACT_VIEWCONTACTOFE3D_HXX
+
+#include <svx/sdr/contact/viewcontactofsdrobj.hxx>
+#include <drawinglayer/primitive3d/baseprimitive3d.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+// predeclarations
+
+namespace sdr { namespace contact {
+    class ViewContactOfE3dScene;
+}}
+
+namespace drawinglayer { namespace attribute {
+    class SdrLineAttribute;
+}}
+
+namespace basegfx {
+    class BColor;
+    class B3DHomMatrix;
+}
+
+class E3dObject;
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace sdr
+{
+    namespace contact
+    {
+        class ViewContactOfE3d : public ViewContactOfSdrObj
+        {
+        protected:
+            // Create a Object-Specific ViewObjectContact, set ViewContact and
+            // ObjectContact. Always needs to return something.
+            virtual ViewObjectContact& CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact);
+
+        public:
+            // basic constructor, used from E3dObject.
+            explicit ViewContactOfE3d(E3dObject& rObj);
+            virtual ~ViewContactOfE3d();
+
+            // access to E3dObject
+            E3dObject& GetE3dObject() const
+            {
+                return (E3dObject&)GetSdrObject();
+            }
+
+            // public helpers
+            drawinglayer::primitive2d::Primitive2DSequence impCreateWithGivenPrimitive3DSequence(
+                const drawinglayer::primitive3d::Primitive3DSequence& rxContent3D) const;
+
+            //////////////////////////////////////////////////////////////////////////////
+            // primitive stuff
+
+        protected:
+            // Primitive3DSequence of the ViewContact. This contains all necessary information
+            // for the graphical visualisation and needs to be supported by all 3D VCs which
+            // can be visualized. It does NOT contain the object transformation to be able to
+            // buffer for all possible usages
+            drawinglayer::primitive3d::Primitive3DSequence              mxViewIndependentPrimitive3DSequence;
+
+            // This method is responsible for creating the graphical visualisation data which is
+            // stored in mxViewIndependentPrimitive3DSequence, but without object transformation
+            virtual drawinglayer::primitive3d::Primitive3DSequence createViewIndependentPrimitive3DSequence() const = 0;
+
+            // This method is responsible for creating the graphical visualisation data derived ONLY from
+            // the model data. The default implementation will try to create a 3D to 2D embedding (will work
+            // when scene is known) which can then be used for 2D processing concerning ranges
+            virtual drawinglayer::primitive2d::Primitive2DSequence createViewIndependentPrimitive2DSequence() const;
+
+        public:
+            // access to the local primitive without the object's local 3D transform. This is e.g. needed
+            // to get the not-yet transformed BoundVolume for e.g. interactions
+            drawinglayer::primitive3d::Primitive3DSequence getVIP3DSWithoutObjectTransform() const;
+
+            // access to the local primitive. This will ensure that the list is
+            // current in comparing the local list content with a fresh created incarnation. It will
+            // use getVIP3DSWithoutObjectTransform and embed to 3d transform primitive when object's
+            // local 3d transform is used
+            drawinglayer::primitive3d::Primitive3DSequence getViewIndependentPrimitive3DSequence() const;
+        };
+    } // end of namespace contact
+} // end of namespace sdr
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif //_SDR_CONTACT_VIEWCONTACTOFE3D_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */