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package org.pdfbox.pdmodel.graphics.color;
import org.pdfbox.cos.COSBase;
import org.pdfbox.cos.COSDictionary;
import org.pdfbox.cos.COSName;
import org.pdfbox.pdmodel.common.COSDictionaryMap;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* This class represents attributes for a DeviceN color space.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.2 $
*/
public class PDDeviceNAttributes
{
private COSDictionary dictionary;
/**
* Constructor.
*/
public PDDeviceNAttributes()
{
dictionary = new COSDictionary();
}
/**
* Constructor.
*
* @param attributes A dictionary that has all of the attributes.
*/
public PDDeviceNAttributes( COSDictionary attributes )
{
dictionary = attributes;
}
/**
* This will get the underlying cos dictionary.
*
* @return The dictionary that this object wraps.
*/
public COSDictionary getCOSDictionary()
{
return dictionary;
}
/**
* This will get a map of colorants. See the PDF Reference for more details about
* this attribute. The map will contain a java.lang.String as the key, a colorant name,
* and a PDColorSpace as the value.
*
* @return The colorant map.
*
* @throws IOException If there is an error getting the colorspaces.
*/
public Map getColorants() throws IOException
{
Map actuals = new HashMap();
COSDictionary colorants = (COSDictionary)dictionary.getDictionaryObject( COSName.getPDFName( "Colorants" ) );
if( colorants == null )
{
colorants = new COSDictionary();
dictionary.setItem( COSName.getPDFName( "Colorants" ), colorants );
}
Iterator iter = colorants.keyList().iterator();
while( iter.hasNext() )
{
COSName name = (COSName)iter.next();
COSBase value = colorants.getDictionaryObject( name );
actuals.put( name.getName(), PDColorSpaceFactory.createColorSpace( value ) );
}
return new COSDictionaryMap( actuals, colorants );
}
/**
* This will replace the existing colorant attribute. The key should be strings
* and the values should be PDColorSpaces.
*
* @param colorants The map of colorants.
*/
public void setColorants( Map colorants )
{
COSDictionary colorantDict = null;
if( colorants != null )
{
colorantDict = COSDictionaryMap.convert( colorants );
}
dictionary.setItem( COSName.getPDFName( "Colorants" ), colorantDict );
}
}