001/* 002 * $Id: PdfSpotColor.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.BaseColor; 047import com.itextpdf.text.error_messages.MessageLocalization; 048 049/** 050 * A <CODE>PdfSpotColor</CODE> defines a ColorSpace 051 * 052 * @see PdfDictionary 053 */ 054 055public class PdfSpotColor{ 056 057/** The color name */ 058 public PdfName name; 059 060/** The alternative color space */ 061 public BaseColor altcs; 062 // constructors 063 064 /** 065 * Constructs a new <CODE>PdfSpotColor</CODE>. 066 * 067 * @param name a String value 068 * @param altcs an alternative colorspace value 069 */ 070 071 public PdfSpotColor(String name, BaseColor altcs) { 072 this.name = new PdfName(name); 073 this.altcs = altcs; 074 } 075 076 /** 077 * Gets the alternative ColorSpace. 078 * @return a BaseColor 079 */ 080 public BaseColor getAlternativeCS() { 081 return altcs; 082 } 083 084 protected PdfObject getSpotObject(PdfWriter writer) { 085 PdfArray array = new PdfArray(PdfName.SEPARATION); 086 array.add(name); 087 PdfFunction func = null; 088 if (altcs instanceof ExtendedColor) { 089 int type = ((ExtendedColor)altcs).type; 090 switch (type) { 091 case ExtendedColor.TYPE_GRAY: 092 array.add(PdfName.DEVICEGRAY); 093 func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{0}, new float[]{((GrayColor)altcs).getGray()}, 1); 094 break; 095 case ExtendedColor.TYPE_CMYK: 096 array.add(PdfName.DEVICECMYK); 097 CMYKColor cmyk = (CMYKColor)altcs; 098 func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{0, 0, 0, 0}, 099 new float[]{cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack()}, 1); 100 break; 101 default: 102 throw new RuntimeException(MessageLocalization.getComposedMessage("only.rgb.gray.and.cmyk.are.supported.as.alternative.color.spaces")); 103 } 104 } 105 else { 106 array.add(PdfName.DEVICERGB); 107 func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{1, 1, 1}, 108 new float[]{(float)altcs.getRed() / 255, (float)altcs.getGreen() / 255, (float)altcs.getBlue() / 255}, 1); 109 } 110 array.add(func.getReference()); 111 return array; 112 } 113}