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* Copyright (c) 2004, www.pdfbox.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
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* this list of conditions and the following disclaimer in the documentation
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* contributors may be used to endorse or promote products derived from this
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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package org.pdfbox.pdmodel.graphics.color;
import java.awt.color.ColorSpace;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.DataBuffer;
import java.awt.Transparency;
import java.io.IOException;
/**
* This class represents a Gray color space.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.6 $
*/
public class PDDeviceGray extends PDColorSpace
{
/**
* The name of this color space.
*/
public static final String NAME = "DeviceGray";
/**
* The abbreviated name of this color space.
*/
public static final String ABBREVIATED_NAME = "G";
/**
* This will return the name of the color space.
*
* @return The name of the color space.
*/
public String getName()
{
return NAME;
}
/**
* This will get the number of components that this color space is made up of.
*
* @return The number of components in this color space.
*
* @throws IOException If there is an error getting the number of color components.
*/
public int getNumberOfComponents() throws IOException
{
return 1;
}
/**
* Create a Java colorspace for this colorspace.
*
* @return A color space that can be used for Java AWT operations.
*
* @throws IOException If there is an error creating the color space.
*/
public ColorSpace createColorSpace() throws IOException
{
return ColorSpace.getInstance( ColorSpace.CS_GRAY );
}
/**
* Create a Java color model for this colorspace.
*
* @param bpc The number of bits per component.
*
* @return A color model that can be used for Java AWT operations.
*
* @throws IOException If there is an error creating the color model.
*/
public ColorModel createColorModel( int bpc ) throws IOException
{
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
int[] nBits = {bpc};
ColorModel colorModel = new ComponentColorModel(cs, nBits, false,false,
Transparency.OPAQUE,DataBuffer.TYPE_BYTE);
return colorModel;
}
}