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diff --git a/vcl/source/graphic/grfcache.hxx b/vcl/source/graphic/grfcache.hxx
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+++ b/vcl/source/graphic/grfcache.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_VCL_SOURCE_GRAPHIC_GRFCACHE_HXX
+#define INCLUDED_VCL_SOURCE_GRAPHIC_GRFCACHE_HXX
+
+#include <vcl/graph.hxx>
+#include <vcl/timer.hxx>
+#include <vector>
+
+
+class GraphicAttr;
+class GraphicCacheEntry;
+class GraphicDisplayCacheEntry;
+class GraphicObject;
+
+class GraphicCache
+{
+private:
+    typedef std::vector< GraphicCacheEntry* > GraphicCacheEntryVector;
+    typedef std::vector< GraphicDisplayCacheEntry* > GraphicDisplayCacheEntryVector;
+
+    Timer                   maReleaseTimer;
+    GraphicCacheEntryVector   maGraphicCache;
+    GraphicDisplayCacheEntryVector maDisplayCache;
+    sal_uLong               mnReleaseTimeoutSeconds;
+    sal_uLong               mnMaxDisplaySize;
+    sal_uLong               mnMaxObjDisplaySize;
+    sal_uLong               mnUsedDisplaySize;
+
+    bool                ImplFreeDisplayCacheSpace( sal_uLong nSizeToFree );
+    GraphicCacheEntry*      ImplGetCacheEntry( const GraphicObject& rObj );
+
+
+                            DECL_LINK( ReleaseTimeoutHdl, Timer*, void );
+
+public:
+
+                            GraphicCache(
+                                sal_uLong nDisplayCacheSize,
+                                sal_uLong nMaxObjDisplayCacheSize
+                            );
+
+                            ~GraphicCache();
+
+public:
+
+    void                    AddGraphicObject(
+                                const GraphicObject& rObj,
+                                Graphic& rSubstitute,
+                                const OString* pID,
+                                const GraphicObject* pCopyObj
+                            );
+
+    void                    ReleaseGraphicObject( const GraphicObject& rObj );
+
+    void                    GraphicObjectWasSwappedOut( const GraphicObject& rObj );
+    void                    GraphicObjectWasSwappedIn( const GraphicObject& rObj );
+
+    OString            GetUniqueID( const GraphicObject& rObj ) const;
+
+public:
+
+    void                    SetMaxDisplayCacheSize( sal_uLong nNewCacheSize );
+    sal_uLong               GetMaxDisplayCacheSize() const { return mnMaxDisplaySize; };
+
+    sal_uLong               GetMaxObjDisplayCacheSize() const { return mnMaxObjDisplaySize; }
+
+    sal_uLong               GetUsedDisplayCacheSize() const { return mnUsedDisplaySize; }
+    sal_uLong               GetFreeDisplayCacheSize() const { return( mnMaxDisplaySize - mnUsedDisplaySize ); }
+
+    void                    SetCacheTimeout( sal_uLong nTimeoutSeconds );
+    sal_uLong               GetCacheTimeout() const { return mnReleaseTimeoutSeconds; }
+
+    bool                IsDisplayCacheable(
+                                OutputDevice const * pOut,
+                                const Point& rPt,
+                                const Size& rSz,
+                                const GraphicObject& rObj,
+                                const GraphicAttr& rAttr
+                            ) const;
+
+    bool                IsInDisplayCache(
+                                OutputDevice const * pOut,
+                                const Point& rPt,
+                                const Size& rSz,
+                                const GraphicObject& rObj,
+                                const GraphicAttr& rAttr
+                            ) const;
+
+    bool                CreateDisplayCacheObj(
+                                OutputDevice const * pOut,
+                                const Point& rPt,
+                                const Size& rSz,
+                                const GraphicObject& rObj,
+                                const GraphicAttr& rAttr,
+                                const BitmapEx& rBmpEx
+                            );
+
+    bool                CreateDisplayCacheObj(
+                                OutputDevice const * pOut,
+                                const Point& rPt,
+                                const Size& rSz,
+                                const GraphicObject& rObj,
+                                const GraphicAttr& rAttr,
+                                const GDIMetaFile& rMtf
+                            );
+
+    bool                DrawDisplayCacheObj(
+                                OutputDevice* pOut,
+                                const Point& rPt,
+                                const Size& rSz,
+                                const GraphicObject& rObj,
+                                const GraphicAttr& rAttr
+                            );
+};
+
+#endif // INCLUDED_VCL_SOURCE_GRAPHIC_GRFCACHE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */