/*
 * $Id$
 *
 * 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.text;

import java.io.IOException;
import java.io.OutputStream;

import com.lowagie.text.Annotation;
import com.lowagie.text.rtf.RtfElement;
import com.lowagie.text.rtf.document.RtfDocument;


/**
 * The RtfAnnotation provides support for adding Annotations to the rtf document.
 * Only simple Annotations with Title / Content are supported.
 * 
 * @version $Id$
 * @author Mark Hall (Mark.Hall@mail.room3b.eu)
 * @author Thomas Bickel (tmb99@inode.at)
 */
public class RtfAnnotation extends RtfElement {

    /**
     * Constant for the id of the annotation
     */
    private static final byte[] ANNOTATION_ID = "\\*\\atnid".getBytes();
    /**
     * Constant for the author of the annotation
     */
    private static final byte[] ANNOTATION_AUTHOR = "\\*\\atnauthor".getBytes();
    /**
     * Constant for the actual annotation
     */
    private static final byte[] ANNOTATION = "\\*\\annotation".getBytes();
    
    /**
     * The title of this RtfAnnotation
     */
    private String title = "";
    /**
     * The content of this RtfAnnotation
     */
    private String content = "";
    
    /**
     * Constructs a RtfAnnotation based on an Annotation.
     * 
     * @param doc The RtfDocument this RtfAnnotation belongs to
     * @param annotation The Annotation this RtfAnnotation is based off
     */
    public RtfAnnotation(RtfDocument doc, Annotation annotation) {
        super(doc);
        title = annotation.title();
        content = annotation.content();
    }
    
    /**
     * Writes the content of the RtfAnnotation
     */
    public void writeContent(final OutputStream result) throws IOException
    {
        result.write(OPEN_GROUP);
        result.write(ANNOTATION_ID);
        result.write(DELIMITER);
        result.write(intToByteArray(document.getRandomInt()));
        result.write(CLOSE_GROUP);
        result.write(OPEN_GROUP);
        result.write(ANNOTATION_AUTHOR);
        result.write(DELIMITER);
        result.write(title.getBytes());
        result.write(CLOSE_GROUP);
        result.write(OPEN_GROUP);
        result.write(ANNOTATION);
        result.write(RtfParagraph.PARAGRAPH_DEFAULTS);
        result.write(DELIMITER);
        result.write(content.getBytes());
        result.write(CLOSE_GROUP);    	
    }
}
