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diff --git a/src/main/java/com/lowagie/text/rtf/RtfBasicElement.java b/src/main/java/com/lowagie/text/rtf/RtfBasicElement.java
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+/*
+ * $Id: RtfBasicElement.java,v 1.16 2005/05/04 14:33:37 blowagie Exp $
+ * $Name:  $
+ *
+ * Copyright 2001, 2002, 2003, 2004 by Mark Hall
+ *
+ * The contents of this file are subject to the Mozilla Public 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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the ?GNU LIBRARY GENERAL PUBLIC LICENSE?), in which case the
+ * provisions of LGPL are applicable instead of those above.  If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * 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 Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.rtf;
+
+import com.lowagie.text.rtf.document.RtfDocument;
+
+/**
+ * The RtfBasicElement interface defines the interface for elements that can
+ * be added to the RtfWriter.
+ *
+ * Version: $Id: RtfBasicElement.java,v 1.16 2005/05/04 14:33:37 blowagie Exp $
+ * @author Mark Hall (mhall@edu.uni-klu.ac.at)
+ */
+public interface RtfBasicElement {
+    /**
+     * Constant for the beginning of a rtf group
+     */
+    public static final byte[] OPEN_GROUP = "{".getBytes();
+    /**
+     * Constant for the end of an rtf group
+     */
+    public static final byte[] CLOSE_GROUP = "}".getBytes();
+    /**
+     * Constant for a delimiter in rtf
+     */
+    public static final byte[] DELIMITER = " ".getBytes();
+    /**
+     * Constant for a comma delimiter in rtf
+     */
+    public static final byte[] COMMA_DELIMITER = ";".getBytes();
+    /**
+     * The factor to use for translating from iText to rtf measurments
+     */
+    public static final double TWIPS_FACTOR = 20;
+
+    /**
+     * Return the content of the Element in a byte array
+     * @return The byte array containing the data
+     */
+    public byte[] write();
+    
+    /**
+     * Sets the RtfDocument this RtfElement belongs to
+     * 
+     * @param doc The RtfDocument to use
+     */
+    public void setRtfDocument(RtfDocument doc);
+    
+    /**
+     * Sets whether this RtfBasicElement is in a table
+     * 
+     * @param inTable Whether this RtfBasicElement is in a table
+     */
+    public void setInTable(boolean inTable);
+    
+    /**
+     * Sets whether this RtfBasicElement is in a header
+     * 
+     * @param inHeader Whether this RtfBasicElement is in a header
+     */
+    public void setInHeader(boolean inHeader);
+}