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package org.pdfbox.pdmodel.graphics.color;
import java.awt.Color;
import java.awt.color.ColorSpace;
import java.io.IOException;
import org.pdfbox.cos.COSArray;
import org.pdfbox.cos.COSFloat;
/**
* This class represents a color space and the color value for that colorspace.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.6 $
*/
public class PDColorSpaceInstance
{
private PDColorSpace colorSpace = new PDDeviceGray();
private COSArray colorSpaceValue = new COSArray();
/**
* Default constructor.
*
*/
public PDColorSpaceInstance()
{
colorSpaceValue.add( new COSFloat( 0 ) );
}
/**
* Create the current color from the colorspace and values.
* @return The current awt color.
* @throws IOException If there is an error creating the color.
*/
public Color createColor() throws IOException
{
Color retval = null;
float[] components = colorSpaceValue.toFloatArray();
if( components.length == 3 )
{
//for some reason, when using RGB and the RGB colorspace
//the new Color doesn't maintain exactly the same values
//I think some color conversion needs to take place first
//for now we will just make rgb a special case.
retval = new Color( components[0], components[1], components[2] );
}
else
{
ColorSpace cs = colorSpace.createColorSpace();
retval = new Color( cs, components, 1f );
}
return retval;
}
/**
* Constructor with an existing color set. Default colorspace is PDDeviceGray.
*
* @param csValues The color space values.
*/
public PDColorSpaceInstance( COSArray csValues )
{
colorSpaceValue = csValues;
}
/**
* This will get the current colorspace.
*
* @return The current colorspace.
*/
public PDColorSpace getColorSpace()
{
return colorSpace;
}
/**
* This will set the current colorspace.
*
* @param value The new colorspace.
*/
public void setColorSpace(PDColorSpace value)
{
colorSpace = value;
}
/**
* This will get the color space values. Either 1 for gray or 3 for RGB.
*
* @return The colorspace values.
*/
public float[] getColorSpaceValue()
{
return colorSpaceValue.toFloatArray();
}
/**
* This will get the color space values. Either 1 for gray or 3 for RGB.
*
* @return The colorspace values.
*/
public COSArray getCOSColorSpaceValue()
{
return colorSpaceValue;
}
/**
* This will update the colorspace values.
*
* @param value The new colorspace values.
*/
public void setColorSpaceValue(float[] value)
{
colorSpaceValue.setFloatArray( value );
}
}