001/*
002 * $Id: PdfPattern.java 4784 2011-03-15 08:33:00Z blowagie $
003 *
004 * This file is part of the iText (R) project.
005 * Copyright (c) 1998-2011 1T3XT BVBA
006 * Authors: Bruno Lowagie, Paulo Soares, et al.
007 *
008 * This program is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU Affero General Public License version 3
010 * as published by the Free Software Foundation with the addition of the
011 * following permission added to Section 15 as permitted in Section 7(a):
012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
014 *
015 * This program is distributed in the hope that it will be useful, but
016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
017 * or FITNESS FOR A PARTICULAR PURPOSE.
018 * See the GNU Affero General Public License for more details.
019 * You should have received a copy of the GNU Affero General Public License
020 * along with this program; if not, see http://www.gnu.org/licenses or write to
021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
022 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
023 * http://itextpdf.com/terms-of-use/
024 *
025 * The interactive user interfaces in modified source and object code versions
026 * of this program must display Appropriate Legal Notices, as required under
027 * Section 5 of the GNU Affero General Public License.
028 *
029 * In accordance with Section 7(b) of the GNU Affero General Public License,
030 * a covered work must retain the producer line in every PDF that is created
031 * or manipulated using iText.
032 *
033 * You can be released from the requirements of the license by purchasing
034 * a commercial license. Buying such a license is mandatory as soon as you
035 * develop commercial activities involving the iText software without
036 * disclosing the source code of your own applications.
037 * These activities include: offering paid services to customers as an ASP,
038 * serving PDFs on the fly in a web application, shipping iText with a closed
039 * source product.
040 *
041 * For more information, please contact iText Software Corp. at this
042 * address: sales@itextpdf.com
043 */
044package com.itextpdf.text.pdf;
045
046import com.itextpdf.text.ExceptionConverter;
047
048/**
049 * A <CODE>PdfPattern</CODE> defines a ColorSpace
050 *
051 * @see         PdfStream
052 */
053
054public class PdfPattern extends PdfStream {
055    
056        /**
057         * Creates a PdfPattern object.
058         * @param       painter a pattern painter instance
059         */
060        PdfPattern(PdfPatternPainter painter) {
061                this(painter, DEFAULT_COMPRESSION);
062        }
063
064        /**
065         * Creates a PdfPattern object.
066         * @param       painter a pattern painter instance
067         * @param       compressionLevel the compressionLevel for the stream
068         * @since       2.1.3
069         */
070    PdfPattern(PdfPatternPainter painter, int compressionLevel) {
071        super();
072        PdfNumber one = new PdfNumber(1);
073        PdfArray matrix = painter.getMatrix();
074        if ( matrix != null ) {
075            put(PdfName.MATRIX, matrix);
076        }
077        put(PdfName.TYPE, PdfName.PATTERN);
078        put(PdfName.BBOX, new PdfRectangle(painter.getBoundingBox()));
079        put(PdfName.RESOURCES, painter.getResources());
080        put(PdfName.TILINGTYPE, one);
081        put(PdfName.PATTERNTYPE, one);
082        if (painter.isStencil())
083            put(PdfName.PAINTTYPE, new PdfNumber(2));
084        else
085            put(PdfName.PAINTTYPE, one);
086        put(PdfName.XSTEP, new PdfNumber(painter.getXStep()));
087        put(PdfName.YSTEP, new PdfNumber(painter.getYStep()));
088        bytes = painter.toPdf(null);
089        put(PdfName.LENGTH, new PdfNumber(bytes.length));
090        try {
091            flateCompress(compressionLevel);
092        } catch (Exception e) {
093            throw new ExceptionConverter(e);
094        }
095    }
096}