org.apache.fop.util.OCAColorSpace 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.
*/
/* $Id$ */
package org.apache.fop.util;
import java.awt.color.ColorSpace;
import org.apache.fop.util.OCAColor.OCAColorValue;
/**
* The OCA color space is a subset of RGB that includes a limited set of colors.
* The color value is specified with one unsigned binary component that
* specifies a named color using a two-byte value from the Standard
* OCA Color Value table.
*
*/
public class OCAColorSpace extends ColorSpace {
private static final long serialVersionUID = 1L;
protected OCAColorSpace() {
super(ColorSpace.TYPE_RGB, 1);
}
public float[] fromCIEXYZ(float[] colorvalue) {
throw new UnsupportedOperationException("Color conversion from CIE XYZ to OCA is not possible");
}
public float[] fromRGB(float[] rgbvalue) {
throw new UnsupportedOperationException("Color conversion from RGB to OCA is not possible");
}
public float[] toCIEXYZ(float[] colorvalue) {
float[] rgb = toRGB(colorvalue);
ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
return sRGB.toCIEXYZ(rgb);
}
public float[] toRGB(float[] colorvalue) {
int oca = (int) colorvalue[0];
if (oca == OCAColorValue.BLACK.value) {
return new float[]{0, 0, 0};
} else if (oca == OCAColorValue.BLUE.value) {
return new float[]{0, 0, 1.0f};
} else if (oca == OCAColorValue.BROWN.value) {
return new float[]{0.565f, 0.188f, 0};
} else if (oca == OCAColorValue.CYAN.value) {
return new float[]{0, 1.0f, 1.0f};
} else if (oca == OCAColorValue.GREEN.value) {
return new float[]{0, 1.0f, 0};
} else if (oca == OCAColorValue.MAGENTA.value) {
return new float[]{1.0f, 0, 1.0f};
} else if (oca == OCAColorValue.RED.value) {
return new float[]{1.0f, 0, 0};
} else if (oca == OCAColorValue.YELLOW.value) {
return new float[]{1.0f, 1.0f, 0};
}
return null;
}
}