diff --git a/sd/source/ui/slidesorter/cache/SlsRequestPriorityClass.hxx b/sd/source/ui/slidesorter/cache/SlsRequestPriorityClass.hxx
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+/*************************************************************************
+ *
+ *  $RCSfile: SlsRequestPriorityClass.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2005-10-24 07:42:20 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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 for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef SD_SLIDESORTER_CACHE_REQUEST_PRIORITY_CLASS_HXX
+#define SD_SLIDESORTER_CACHE_REQUEST_PRIORITY_CLASS_HXX
+
+namespace sd { namespace slidesorter { namespace cache {
+
+
+/** Each request for a preview creation has a priority.  This enum defines
+    the available priorities.  The special values MIN__CLASS and MAX__CLASS
+    are/can be used for validation and have to be kept up-to-date.
+*/
+enum RequestPriorityClass
+{
+    MIN__CLASS = 0,
+
+    // The slide is visible.  A preview does not yet exist.
+    VISIBLE_NO_PREVIEW = MIN__CLASS,
+    // The slide is visible.  A preview exists but is not up-to-date anymore.
+    VISIBLE_OUTDATED_PREVIEW,
+    // The slide is not visible.
+    NOT_VISIBLE,
+
+    MAX__CLASS = NOT_VISIBLE
+};
+
+
+} } } // end of namespace ::sd::slidesorter::cache
+
+#endif