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diff --git a/svx/inc/svx/sdr/overlay/overlaymanagerbuffered.hxx b/svx/inc/svx/sdr/overlay/overlaymanagerbuffered.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: overlaymanagerbuffered.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.
+ *
+ ************************************************************************/
+
+#ifndef _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
+#define _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
+
+#include <svx/sdr/overlay/overlaymanager.hxx>
+#include <basegfx/range/b2irange.hxx>
+#include <vcl/virdev.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+// predeclarations
+
+class VirtualDevice;
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace sdr
+{
+    namespace overlay
+    {
+        class OverlayManagerBuffered : public OverlayManager
+        {
+        protected:
+            // The VirtualDevice for draw window content buffering, this
+            // is the view content without overlay
+            VirtualDevice                           maBufferDevice;
+
+            // #i73602# The VirtualDevice for OverlayPaint buffering. This
+            // is an extra device to avoid flickering of overlay paints
+            VirtualDevice                           maOutputBufferDevice;
+
+            // Timer for buffering
+            Timer                                   maBufferTimer;
+
+            // Range for buffering (in pixel to be independent from mapMode)
+            basegfx::B2IRange                       maBufferRememberedRangePixel;
+
+            // bitfield
+            // Flag to decide if PreRendering shall be used for overlay refreshes.
+            // Default is false.
+            unsigned                                mbRefreshWithPreRendering : 1;
+
+            // link for timer
+            DECL_LINK(ImpBufferTimerHandler, AutoTimer*);
+
+            // Internal methods for buffering
+            void ImpPrepareBufferDevice();
+            void ImpRestoreBackground() const ;
+            void ImpRestoreBackground(const Region& rRegionPixel) const;
+            void ImpSaveBackground(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L);
+
+        public:
+            // when handing over another OverlayManager at construction, the OverlayObjects
+            // will be taken over from it. The new one will have added all OverlayObjects
+            // while the handed over one will have none
+            OverlayManagerBuffered(
+                OutputDevice& rOutputDevice,
+                OverlayManager* pOldOverlayManager = 0,
+                bool bRefreshWithPreRendering = false);
+            virtual ~OverlayManagerBuffered();
+
+            // complete redraw
+            virtual void completeRedraw(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L) const;
+
+            // flush. Do buffered updates.
+            virtual void flush();
+
+            // #i68597# part of content gets copied, react on it
+            virtual void copyArea(const Point& rDestPt, const Point& rSrcPt, const Size& rSrcSize);
+
+            // restore part of background. Implemented form buffered versions only.
+            virtual void restoreBackground(const Region& rRegion) const;
+
+            // invalidate the given range at local OutputDevice
+            virtual void invalidateRange(const basegfx::B2DRange& rRange);
+
+            // access to RefreshWithPreRendering Flag
+            bool DoRefreshWithPreRendering() const { return mbRefreshWithPreRendering; }
+            void SetRefreshWithPreRendering(bool bNew);
+        };
+    } // end of namespace overlay
+} // end of namespace sdr
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif //_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
+
+// eof