001/*
002 * $Id: PdfShadingPattern.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 java.io.IOException;
047import com.itextpdf.text.error_messages.MessageLocalization;
048/** Implements the shading pattern dictionary.
049 *
050 * @author Paulo Soares
051 */
052public class PdfShadingPattern extends PdfDictionary {
053
054    protected PdfShading shading;
055    
056    protected PdfWriter writer;
057    
058    protected float matrix[] = {1, 0, 0, 1, 0, 0};
059    
060    protected PdfName patternName;
061
062    protected PdfIndirectReference patternReference;
063
064    /** Creates new PdfShadingPattern */
065    public PdfShadingPattern(PdfShading shading) {
066        writer = shading.getWriter();
067        put(PdfName.PATTERNTYPE, new PdfNumber(2));
068        this.shading = shading;
069    }
070        
071    PdfName getPatternName() {
072        return patternName;
073    }
074
075    PdfName getShadingName() {
076        return shading.getShadingName();
077    }
078    
079    PdfIndirectReference getPatternReference() {
080        if (patternReference == null)
081            patternReference = writer.getPdfIndirectReference();
082        return patternReference;
083    }
084    
085    PdfIndirectReference getShadingReference() {
086        return shading.getShadingReference();
087    }
088    
089    void setName(int number) {
090        patternName = new PdfName("P" + number);
091    }
092    
093    void addToBody() throws IOException {
094        put(PdfName.SHADING, getShadingReference());
095        put(PdfName.MATRIX, new PdfArray(matrix));
096        writer.addToBody(this, getPatternReference());
097    }
098    
099    public void setMatrix(float matrix[]) {
100        if (matrix.length != 6)
101            throw new RuntimeException(MessageLocalization.getComposedMessage("the.matrix.size.must.be.6"));
102        this.matrix = matrix;
103    }
104    
105    public float[] getMatrix() {
106        return matrix;
107    }
108    
109    public PdfShading getShading() {
110        return shading;
111    }
112    
113    ColorDetails getColorDetails() {
114        return shading.getColorDetails();
115    }
116
117}