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diff --git a/sw/inc/swregion.hxx b/sw/inc/swregion.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_SW_INC_SWREGION_HXX
+#define INCLUDED_SW_INC_SWREGION_HXX
+
+#include <vector>
+
+#include "swrect.hxx"
+
+typedef std::vector<SwRect> SwRects;
+
+// A collection of rectangles within a given area (origin).
+// One way to use is to initially set rStartRect, which will set the origin
+// and the rectangles to rStartRect, and then use operator-= to punch holes.
+// Other way to use is to use empty constructor, call ChangeOrigin() and
+// then use operator+= to add rectangles, possibly followed by final
+// LimitToOrigin() and Compress(). The second way should be faster than
+// the first way followed by Invert().
+class SwRegionRects : public SwRects
+{
+    SwRect m_aOrigin; // Origin area, limits the total area e.g. for Invert()
+
+    inline void InsertRect( const SwRect &rRect, const sal_uInt16 nPos, bool &rDel);
+
+public:
+    // Sets rStartRect as the first element and also the origin area.
+    explicit SwRegionRects( const SwRect& rStartRect, sal_uInt16 nInit = 20 );
+    // Empty constructor, does not set elements or origin area. You may
+    // most likely want to call ChangeOrigin() afterwards.
+    explicit SwRegionRects( sal_uInt16 nInit = 20 );
+
+    // For punching from aOrigin.
+    void operator-=( const SwRect& rRect );
+    void operator+=( const SwRect& rRect );
+
+    // From holes to areas, from areas to holes, within the origin area.
+    void Invert();
+
+    // Ensures all rectangles are within the origin area.
+    void LimitToOrigin();
+
+    enum CompressType { CompressExact, CompressFuzzy };
+    // Combine adjacent rectangles.
+    void Compress( CompressType type );
+
+    const SwRect &GetOrigin() const { return m_aOrigin; }
+    void ChangeOrigin( const SwRect &rRect ) { m_aOrigin = rRect; }
+};
+
+#endif // INCLUDED_SW_INC_SWREGION_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */