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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.pdmodel.graphics.color;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.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 Ben Litchfield
* @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.COLORANTS );
if( colorants == null )
{
colorants = new COSDictionary();
dictionary.setItem( COSName.COLORANTS, colorants );
}
for( COSName name : colorants.keySet() )
{
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.COLORANTS, colorantDict );
}
}