using System;

using iTextSharp.text;

/*
 * $Id: PdfSchema.cs 178 2010-06-01 14:46:16Z psoares33 $
 * 
 *
 * This file is part of the iText project.
 * Copyright (c) 1998-2012 1T3XT BVBA
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * you must retain the producer line in every PDF that is created or manipulated
 * using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */

namespace iTextSharp.text.xml.xmp {

    /**
    * An implementation of an XmpSchema.
    */
    public class PdfSchema : XmpSchema {
        
        /** default namespace identifier*/
        public const String DEFAULT_XPATH_ID = "pdf";
        /** default namespace uri*/
        public const String DEFAULT_XPATH_URI = "http://ns.adobe.com/pdf/1.3/";
        /** Keywords. */
        public const String KEYWORDS = "pdf:Keywords";
        /** The PDF file version (for example: 1.0, 1.3, and so on). */
        public const String VERSION = "pdf:PDFVersion";
        /** The Producer. */
        public const String PRODUCER = "pdf:Producer";
        
        /**
        * @throws IOException
        */
        public PdfSchema() : base("xmlns:" + DEFAULT_XPATH_ID + "=\"" + DEFAULT_XPATH_URI + "\"") {
            AddProducer(Document.Version);
        }
        
        /**
        * Adds keywords.
        * @param keywords
        */
        public void AddKeywords(String keywords) {
            this[KEYWORDS] = keywords;
        }
        
        /**
        * Adds the producer.
        * @param producer
        */
        public void AddProducer(String producer) {
            this[PRODUCER] = producer;
        }

        /**
        * Adds the version.
        * @param version
        */
        public void AddVersion(String version) {
            this[VERSION] = version;
        }
    }
}
