org.apache.pdfbox.pdmodel.graphics.color.PDDeviceNProcess Maven / Gradle / Ivy
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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.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* A DeviceN Process Dictionary
*
* @author John Hewson
*/
public class PDDeviceNProcess
{
private final COSDictionary dictionary;
/**
* Creates a new DeviceN Process Dictionary.
*/
public PDDeviceNProcess()
{
dictionary = new COSDictionary();
}
/**
* Creates a new DeviceN Process Dictionary from the given attributes.
* @param attributes a DeviceN attributes dictionary
*/
public PDDeviceNProcess(COSDictionary attributes)
{
dictionary = attributes;
}
/**
* Returns the underlying COS dictionary.
* @return the underlying COS dictionary.
*/
public COSDictionary getCOSDictionary()
{
return dictionary;
}
/**
* Returns the process color space
* @return the process color space
* @throws IOException if the color space cannot be read
*/
public PDColorSpace getColorSpace() throws IOException
{
COSBase cosColorSpace = dictionary.getDictionaryObject(COSName.COLORSPACE);
if (cosColorSpace == null)
{
return null; // TODO: return a default?
}
return PDColorSpace.create(cosColorSpace);
}
/**
* Returns the names of the color components.
* @return the names of the color components
*/
public List getComponents()
{
List components = new ArrayList();
COSArray cosComponents = (COSArray)dictionary.getDictionaryObject(COSName.COMPONENTS);
if (cosComponents == null)
{
return components;
}
for (COSBase name : cosComponents)
{
components.add(((COSName)name).getName());
}
return components;
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder("Process{");
try
{
sb.append(getColorSpace());
for (String component : getComponents())
{
sb.append(" \"");
sb.append(component);
sb.append('\"');
}
}
catch (IOException e)
{
sb.append("ERROR");
}
sb.append('}');
return sb.toString();
}
}