Java tutorial
/* * * This file is part of the iText (R) project. Copyright (c) 1998-2019 iText Group NV * 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 * ITEXT GROUP. ITEXT GROUP 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, * a covered work 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 */ package com.itextpdf.text.pdf; import com.itextpdf.text.BaseColor; import com.itextpdf.text.error_messages.MessageLocalization; /** * A <CODE>PdfSpotColor</CODE> defines a ColorSpace * * @see PdfDictionary */ public class PdfSpotColor implements ICachedColorSpace, IPdfSpecialColorSpace { /** The color name */ public PdfName name; /** The alternative color space */ public BaseColor altcs; // constructors public ColorDetails altColorDetails; /** * Constructs a new <CODE>PdfSpotColor</CODE>. * * @param name a String value * @param altcs an alternative colorspace value */ public PdfSpotColor(String name, BaseColor altcs) { this.name = new PdfName(name); this.altcs = altcs; } public ColorDetails[] getColorantDetails(PdfWriter writer) { if (altColorDetails == null && this.altcs instanceof ExtendedColor && ((ExtendedColor) this.altcs).getType() == ExtendedColor.TYPE_LAB) { altColorDetails = writer.addSimple(((LabColor) altcs).getLabColorSpace()); } return new ColorDetails[] { altColorDetails }; } /** * Gets the alternative ColorSpace. * @return a BaseColor */ public BaseColor getAlternativeCS() { return altcs; } public PdfName getName() { return name; } @Deprecated protected PdfObject getSpotObject(PdfWriter writer) { return getPdfObject(writer); } public PdfObject getPdfObject(PdfWriter writer) { PdfArray array = new PdfArray(PdfName.SEPARATION); array.add(name); PdfFunction func = null; if (altcs instanceof ExtendedColor) { int type = ((ExtendedColor) altcs).type; switch (type) { case ExtendedColor.TYPE_GRAY: array.add(PdfName.DEVICEGRAY); func = PdfFunction.type2(writer, new float[] { 0, 1 }, null, new float[] { 1 }, new float[] { ((GrayColor) altcs).getGray() }, 1); break; case ExtendedColor.TYPE_CMYK: array.add(PdfName.DEVICECMYK); CMYKColor cmyk = (CMYKColor) altcs; func = PdfFunction.type2(writer, new float[] { 0, 1 }, null, new float[] { 0, 0, 0, 0 }, new float[] { cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack() }, 1); break; case ExtendedColor.TYPE_LAB: LabColor lab = (LabColor) altcs; if (altColorDetails != null) array.add(altColorDetails.getIndirectReference()); else array.add(lab.getLabColorSpace().getPdfObject(writer)); func = PdfFunction.type2(writer, new float[] { 0, 1 }, null, new float[] { 100f, 0f, 0f }, new float[] { lab.getL(), lab.getA(), lab.getB() }, 1); break; default: throw new RuntimeException(MessageLocalization .getComposedMessage("only.rgb.gray.and.cmyk.are.supported.as.alternative.color.spaces")); } } else { array.add(PdfName.DEVICERGB); func = PdfFunction.type2(writer, new float[] { 0, 1 }, null, new float[] { 1, 1, 1 }, new float[] { (float) altcs.getRed() / 255, (float) altcs.getGreen() / 255, (float) altcs.getBlue() / 255 }, 1); } array.add(func.getReference()); return array; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof PdfSpotColor)) return false; PdfSpotColor spotColor = (PdfSpotColor) o; if (!altcs.equals(spotColor.altcs)) return false; if (!name.equals(spotColor.name)) return false; return true; } @Override public int hashCode() { int result = name.hashCode(); result = 31 * result + altcs.hashCode(); return result; } }