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diff --git a/src/utilities/imageeditor/canvas/undocache.h b/src/utilities/imageeditor/canvas/undocache.h
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2005-02-05
+ * Description : undo cache manager for image editor.
+ *
+ * Copyright (C) 2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
+ * Copyright (C) 2005 by Joern Ahrens <joern.ahrens@kdemail.net>
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ * 
+ * This program 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 General Public License for more details.
+ *
+ * ============================================================ */
+
+#ifndef UNDOCACHE_H
+#define UNDOCACHE_H
+
+// TQt includes.
+
+#include <tqglobal.h>
+
+// Local includes.
+
+#include "digikam_export.h"
+
+namespace Digikam
+{
+
+class UndoCachePriv;
+
+class DIGIKAM_EXPORT UndoCache
+{
+
+public:
+
+    UndoCache();
+    ~UndoCache();
+
+    void   clear();
+    bool   putData(int level, int w, int h, int bytesDepth, uchar* data);
+    uchar *getData(int level, int& w, int& h, int& bytesDepth, bool del=true);
+
+    void   erase(int level);
+
+private:
+
+    UndoCachePriv *d;
+};
+
+}  // namespace Digikam
+
+#endif /* UNDOCACHE_H */