org.apache.xmlgraphics.java2d.color.DeviceCMYKColorSpace Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id: DeviceCMYKColorSpace.java 1400596 2012-10-21 08:49:02Z gadams $ */
package org.apache.xmlgraphics.java2d.color;
import java.awt.Color;
/**
* This class represents an uncalibrated CMYK color space.
*/
public class DeviceCMYKColorSpace extends AbstractDeviceSpecificColorSpace
implements ColorSpaceOrigin {
private static final long serialVersionUID = 2925508946083542974L;
/** The name for the uncalibrated CMYK pseudo-profile */
public static final String PSEUDO_PROFILE_NAME = "#CMYK";
/**
* Constructs an uncalibrated CMYK ColorSpace object with
* {@link java.awt.color.ColorSpace#TYPE_CMYK} and 4 components.
* @see java.awt.color.ColorSpace#ColorSpace(int, int)
*/
public DeviceCMYKColorSpace() {
super(TYPE_CMYK, 4);
}
/**
* Returns an instance of an uncalibrated CMYK color space.
* @return CMYKColorSpace the requested color space object
* @deprecated Use {@link ColorSpaces#getDeviceCMYKColorSpace()} instead.
*/
@Deprecated
public static DeviceCMYKColorSpace getInstance() {
return ColorSpaces.getDeviceCMYKColorSpace();
}
/** {@inheritDoc} */
@Override
public float[] toRGB(float[] colorvalue) {
return new float [] {
(1 - colorvalue[0]) * (1 - colorvalue[3]),
(1 - colorvalue[1]) * (1 - colorvalue[3]),
(1 - colorvalue[2]) * (1 - colorvalue[3])};
}
/** {@inheritDoc} */
@Override
public float[] fromRGB(float[] rgbvalue) {
assert rgbvalue.length == 3;
//Note: this is an arbitrary conversion, not a color-managed one!
float r = rgbvalue[0];
float g = rgbvalue[1];
float b = rgbvalue[2];
if (r == g && r == b) {
return new float[] {0, 0, 0, 1 - r};
} else {
float c = 1 - r;
float m = 1 - g;
float y = 1 - b;
float k = Math.min(c, Math.min(m, y));
return new float[] {c, m, y, k};
}
}
/** {@inheritDoc} */
@Override
public float[] toCIEXYZ(float[] colorvalue) {
throw new UnsupportedOperationException("NYI");
}
/** {@inheritDoc} */
@Override
public float[] fromCIEXYZ(float[] colorvalue) {
throw new UnsupportedOperationException("NYI");
}
/**
* Creates a color instance representing a device-specific CMYK color. An sRGB value
* is calculated from the CMYK colors but it may not correctly represent the given CMYK
* values.
* @param cmykComponents the CMYK components
* @return the device-specific color
*/
public static Color createCMYKColor(float[] cmykComponents) {
DeviceCMYKColorSpace cmykCs = ColorSpaces.getDeviceCMYKColorSpace();
Color cmykColor = new ColorWithAlternatives(cmykCs, cmykComponents, 1.0f, null);
return cmykColor;
}
/** {@inheritDoc} */
public String getProfileName() {
return PSEUDO_PROFILE_NAME;
}
/** {@inheritDoc} */
public String getProfileURI() {
return null; //No URI
}
}