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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.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 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.color.ICC_ColorSpace;
import java.io.IOException;
import java.io.OutputStream;
import org.pdfbox.cos.COSArray;
import org.pdfbox.cos.COSBase;
import org.pdfbox.cos.COSFloat;
import org.pdfbox.cos.COSName;
import org.pdfbox.pdmodel.PDDocument;
import org.pdfbox.pdmodel.common.PDStream;
/**
* This class represents a color space in a pdf document.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.11 $
*/
public final class PDColorSpaceFactory
{
/**
* Private constructor for utility classes.
*/
private PDColorSpaceFactory()
{
//utility class should not be implemented
}
/**
* This will create the correct color space given the name.
*
* @param colorSpace The color space object.
*
* @return The color space.
*
* @throws IOException If the color space name is unknown.
*/
public static PDColorSpace createColorSpace( COSBase colorSpace ) throws IOException
{
PDColorSpace retval = null;
if( colorSpace instanceof COSName )
{
retval = createColorSpace( ((COSName)colorSpace).getName() );
}
else if( colorSpace instanceof COSArray )
{
COSArray array = (COSArray)colorSpace;
COSName type = (COSName)array.getObject( 0 );
if( type.getName().equals( PDCalGray.NAME ) )
{
retval = new PDCalGray( array );
}
else if( type.getName().equals( PDCalRGB.NAME ) )
{
retval = new PDCalRGB( array );
}
else if( type.getName().equals( PDDeviceN.NAME ) )
{
retval = new PDDeviceN( array );
}
else if( type.getName().equals( PDIndexed.NAME ) ||
type.getName().equals( PDIndexed.ABBREVIATED_NAME ))
{
retval = new PDIndexed( array );
}
else if( type.getName().equals( PDLab.NAME ) )
{
retval = new PDLab( array );
}
else if( type.getName().equals( PDSeparation.NAME ) )
{
retval = new PDSeparation( array );
}
else if( type.getName().equals( PDICCBased.NAME ) )
{
retval = new PDICCBased( array );
}
else if( type.getName().equals( PDPattern.NAME ) )
{
retval = new PDPattern( array );
}
else
{
throw new IOException( "Unknown colorspace array type:" + type );
}
}
else
{
throw new IOException( "Unknown colorspace type:" + colorSpace );
}
return retval;
}
/**
* This will create the correct color space given the name.
*
* @param colorSpaceName The name of the colorspace.
*
* @return The color space.
*
* @throws IOException If the color space name is unknown.
*/
public static PDColorSpace createColorSpace( String colorSpaceName ) throws IOException
{
PDColorSpace cs = null;
if( colorSpaceName.equals( PDDeviceCMYK.NAME ) ||
colorSpaceName.equals( PDDeviceCMYK.ABBREVIATED_NAME ) )
{
cs = PDDeviceCMYK.INSTANCE;
}
else if( colorSpaceName.equals( PDDeviceRGB.NAME ) ||
colorSpaceName.equals( PDDeviceRGB.ABBREVIATED_NAME ) )
{
cs = PDDeviceRGB.INSTANCE;
}
else if( colorSpaceName.equals( PDDeviceGray.NAME ) ||
colorSpaceName.equals( PDDeviceGray.ABBREVIATED_NAME ))
{
cs = new PDDeviceGray();
}
else if( colorSpaceName.equals( PDLab.NAME ) )
{
cs = new PDLab();
}
else if( colorSpaceName.equals( PDPattern.NAME ) )
{
cs = new PDPattern();
}
else
{
throw new IOException( "Error: Unknown colorspace '" + colorSpaceName + "'" );
}
return cs;
}
/**
* This will create the correct color space from a java colorspace.
*
* @param doc The doc to potentiall write information to.
* @param cs The awt colorspace.
*
* @return The color space.
*
* @throws IOException If the color space name is unknown.
*/
public static PDColorSpace createColorSpace( PDDocument doc, ColorSpace cs ) throws IOException
{
PDColorSpace retval = null;
if( cs.isCS_sRGB() )
{
retval = PDDeviceRGB.INSTANCE;
}
else if( cs instanceof ICC_ColorSpace )
{
ICC_ColorSpace ics = (ICC_ColorSpace)cs;
PDICCBased pdCS = new PDICCBased( doc );
retval = pdCS;
COSArray ranges = new COSArray();
for( int i=0; i<cs.getNumComponents(); i++ )
{
ranges.add( new COSFloat( ics.getMinValue( i ) ) );
ranges.add( new COSFloat( ics.getMaxValue( i ) ) );
}
PDStream iccData = pdCS.getPDStream();
OutputStream output = null;
try
{
output = iccData.createOutputStream();
output.write( ics.getProfile().getData() );
}
finally
{
if( output != null )
{
output.close();
}
}
pdCS.setNumberOfComponents( cs.getNumComponents() );
}
else
{
throw new IOException( "Not yet implemented:" + cs );
}
return retval;
}
}