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diff --git a/slideshow/source/engine/transitions/spiralwipe.hxx b/slideshow/source/engine/transitions/spiralwipe.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: spiralwipe.hxx,v $
+ * $Revision: 1.5 $
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#if ! defined INCLUDED_SLIDESHOW_SPIRALWIPE_HXX
+#define INCLUDED_SLIDESHOW_SPIRALWIPE_HXX
+
+#include "parametricpolypolygon.hxx"
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+
+
+namespace slideshow {
+namespace internal {
+
+/// Generates a topLeftClockWise or
+/// bottomLeftCounterClockWise (flipOnYAxis=true) spiral wipe:
+class SpiralWipe : public ParametricPolyPolygon
+{
+public:
+    SpiralWipe( sal_Int32 nElements, bool flipOnYAxis = false );
+    virtual ::basegfx::B2DPolyPolygon operator () ( double t );
+protected:
+    ::basegfx::B2DPolyPolygon calcNegSpiral( double t ) const;
+
+    const sal_Int32 m_elements;
+    const sal_Int32 m_sqrtElements;
+    const bool m_flipOnYAxis;
+};
+
+/// Generates a twoBoxLeft or fourBoxHorizontal wipe:
+class BoxSnakesWipe : public SpiralWipe
+{
+public:
+    BoxSnakesWipe( sal_Int32 nElements, bool fourBox = false )
+        : SpiralWipe(nElements), m_fourBox(fourBox) {}
+    virtual ::basegfx::B2DPolyPolygon operator () ( double t );
+private:
+    const bool m_fourBox;
+};
+
+}
+}
+
+#endif /* INCLUDED_SLIDESHOW_SPIRALWIPE_HXX */