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diff --git a/oox/inc/oox/xls/commentsbuffer.hxx b/oox/inc/oox/xls/commentsbuffer.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * 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 OOX_XLS_COMMENTSBUFFER_HXX
+#define OOX_XLS_COMMENTSBUFFER_HXX
+
+#include "oox/xls/richstring.hxx"
+#include "oox/xls/worksheethelper.hxx"
+
+namespace oox {
+namespace xls {
+
+// ============================================================================
+
+struct CommentModel
+{
+    ::com::sun::star::table::CellRangeAddress
+                        maRange;            /// Position of the comment in the worksheet.
+    RichStringRef       mxText;             /// Formatted text of the comment.
+    sal_Int32           mnAuthorId;         /// Identifier of the comment's author.
+
+    explicit            CommentModel();
+};
+
+// ----------------------------------------------------------------------------
+
+class Comment : public WorksheetHelper
+{
+public:
+    explicit            Comment( const WorksheetHelper& rHelper );
+
+    /** Imports a cell comment from the passed attributes of the comment element. */
+    void                importComment( const AttributeList& rAttribs );
+    /** Imports a cell comment from the passed stream of a COMMENT record. */
+    void                importComment( RecordInputStream& rStrm );
+
+    /** Creates and returns a new rich-string object for the comment text. */
+    RichStringRef       createText();
+
+    /** Finalizes the formatted string of the comment. */
+    void                finalizeImport();
+
+private:
+    CommentModel        maModel;
+};
+
+typedef ::boost::shared_ptr< Comment > CommentRef;
+
+// ============================================================================
+
+class CommentsBuffer : public WorksheetHelper
+{
+public:
+    explicit            CommentsBuffer( const WorksheetHelper& rHelper );
+
+    /** Appends a new author to the list of comment authors. */
+    void                appendAuthor( const ::rtl::OUString& rAuthor );
+    /** Creates and returns a new comment. */
+    CommentRef          createComment();
+
+    /** Finalizes the formatted string of all comments. */
+    void                finalizeImport();
+
+private:
+    typedef ::std::vector< ::rtl::OUString >    OUStringVector;
+    typedef RefVector< Comment >                CommentVector;
+
+    OUStringVector      maAuthors;
+    CommentVector       maComments;
+};
+
+// ============================================================================
+
+} // namespace xls
+} // namespace oox
+
+#endif
+