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package com.sun.imageio.plugins.common;

import java.awt.color.ColorSpace;

A dummy ColorSpace to enable ColorModel for image data which do not have an innate color representation.
/** * A dummy <code>ColorSpace</code> to enable <code>ColorModel</code> * for image data which do not have an innate color representation. */
public class BogusColorSpace extends ColorSpace {
Return the type given the number of components.
Params:
  • numComponents – The number of components in the ColorSpace.
Throws:
/** * Return the type given the number of components. * * @param numComponents The number of components in the * <code>ColorSpace</code>. * @exception IllegalArgumentException if <code>numComponents</code> * is less than 1. */
private static int getType(int numComponents) { if(numComponents < 1) { throw new IllegalArgumentException("numComponents < 1!"); } int type; switch(numComponents) { case 1: type = ColorSpace.TYPE_GRAY; break; default: // Based on the constant definitions TYPE_2CLR=12 through // TYPE_FCLR=25. This will return unknown types for // numComponents > 15. type = numComponents + 10; } return type; }
Constructs a bogus ColorSpace.
Params:
  • numComponents – The number of components in the ColorSpace.
Throws:
/** * Constructs a bogus <code>ColorSpace</code>. * * @param numComponents The number of components in the * <code>ColorSpace</code>. * @exception IllegalArgumentException if <code>numComponents</code> * is less than 1. */
public BogusColorSpace(int numComponents) { super(getType(numComponents), numComponents); } // // The following methods simply copy the input array to the // output array while otherwise attempting to adhere to the // specified behavior of the methods vis-a-vis exceptions. // public float[] toRGB(float[] colorvalue) { if(colorvalue.length < getNumComponents()) { throw new ArrayIndexOutOfBoundsException ("colorvalue.length < getNumComponents()"); } float[] rgbvalue = new float[3]; System.arraycopy(colorvalue, 0, rgbvalue, 0, Math.min(3, getNumComponents())); return colorvalue; } public float[] fromRGB(float[] rgbvalue) { if(rgbvalue.length < 3) { throw new ArrayIndexOutOfBoundsException ("rgbvalue.length < 3"); } float[] colorvalue = new float[getNumComponents()]; System.arraycopy(rgbvalue, 0, colorvalue, 0, Math.min(3, colorvalue.length)); return rgbvalue; } public float[] toCIEXYZ(float[] colorvalue) { if(colorvalue.length < getNumComponents()) { throw new ArrayIndexOutOfBoundsException ("colorvalue.length < getNumComponents()"); } float[] xyzvalue = new float[3]; System.arraycopy(colorvalue, 0, xyzvalue, 0, Math.min(3, getNumComponents())); return colorvalue; } public float[] fromCIEXYZ(float[] xyzvalue) { if(xyzvalue.length < 3) { throw new ArrayIndexOutOfBoundsException ("xyzvalue.length < 3"); } float[] colorvalue = new float[getNumComponents()]; System.arraycopy(xyzvalue, 0, colorvalue, 0, Math.min(3, colorvalue.length)); return xyzvalue; } }