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/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2017 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: [email protected]
*/
package com.itextpdf.text.pdf;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.error_messages.MessageLocalization;
/**
* A PdfSpotColor 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 PdfSpotColor.
*
* @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;
}
}
