/*****************************************************************************
*
* 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.preflight.graphic;
import java.awt.color.ICC_ColorSpace;
import java.awt.color.ICC_Profile;
import java.io.IOException;
import java.io.InputStream;
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 org.apache.pdfbox.cos.COSStream;
import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
import org.apache.pdfbox.preflight.PreflightContext;
import org.apache.pdfbox.preflight.PreflightDocument;
import org.apache.pdfbox.preflight.ValidationResult.ValidationError;
import org.apache.pdfbox.preflight.exception.ValidationException;
import org.apache.pdfbox.preflight.utils.COSUtils;
import static org.apache.pdfbox.preflight.PreflightConstants.DOCUMENT_DICTIONARY_KEY_OUTPUT_INTENTS;
import static org.apache.pdfbox.preflight.PreflightConstants.ERROR_GRAPHIC_OUTPUT_INTENT_ICC_PROFILE_INVALID;
import static org.apache.pdfbox.preflight.PreflightConstants.OUTPUT_INTENT_DICTIONARY_KEY_DEST_OUTPUT_PROFILE;
/**
* This class embeds an instance of java.awt.color.ICC_Profile which represent the ICCProfile defined by the
* DestOutputItents key of the OutputIntents of the PDF.
*/
public class ICCProfileWrapper
{
/**
* The ICCProfile extracted from DestOutputItents
*/
private final ICC_Profile profile;
/**
* The ICC ColorSpace created using the ICCProfile
*/
private final ICC_ColorSpace colorSpace;
public ICCProfileWrapper(final ICC_Profile _profile)
{
this.profile = _profile;
this.colorSpace = new ICC_ColorSpace(_profile);
}
/**
* Call the ICC_ColorSpace.getType method and return the value.
*
* @return the color space type.
*/
public int getColorSpaceType()
{
return colorSpace.getType();
}
/**
* @return the profile
*/
public ICC_Profile getProfile()
{
return profile;
}
/**
* Return true if the ColourSpace is RGB
*
* @return true if the ColourSpace is RGB.
*/
public boolean isRGBColorSpace()
{
return ICC_ColorSpace.TYPE_RGB == colorSpace.getType();
}
/**
* Return true if the ColourSpace is CMYK
*
* @return true if the ColourSpace is CMYK.
*/
public boolean isCMYKColorSpace()
{
return ICC_ColorSpace.TYPE_CMYK == colorSpace.getType();
}
/**
* Return true if the ColourSpace is Gray scale
*
* @return true if the ColourSpace is gray scale.
*/
public boolean isGrayColorSpace()
{
return ICC_ColorSpace.TYPE_GRAY == colorSpace.getType();
}
/**
* This method read all outputIntent dictionary until on of them have a destOutputProfile stream. This stream is
* parsed and is used to create a IccProfileWrapper.
*
* @param context
* @return an instance of ICCProfileWrapper or null if there are no DestOutputProfile
* @throws ValidationException
* if an IOException occurs during the DestOutputProfile parsing
*/
private static ICCProfileWrapper searchFirstICCProfile(PreflightContext context) throws ValidationException
{
PreflightDocument document = context.getDocument();
PDDocumentCatalog catalog = document.getDocumentCatalog();
COSBase cBase = catalog.getCOSObject().getItem(COSName.getPDFName(DOCUMENT_DICTIONARY_KEY_OUTPUT_INTENTS));
COSArray outputIntents = COSUtils.getAsArray(cBase, document.getDocument());
for (int i = 0; outputIntents != null && i < outputIntents.size(); ++i)
{
COSDictionary outputIntentDict = COSUtils.getAsDictionary(outputIntents.get(i), document.getDocument());
COSBase destOutputProfile = outputIntentDict.getItem(OUTPUT_INTENT_DICTIONARY_KEY_DEST_OUTPUT_PROFILE);
if (destOutputProfile != null)
{
try
{
COSStream stream = COSUtils.getAsStream(destOutputProfile, document.getDocument());
if (stream != null)
{
InputStream is = stream.createInputStream();
try
{
return new ICCProfileWrapper(ICC_Profile.getInstance(is));
}
finally
{
is.close();
}
}
}
catch (IllegalArgumentException e)
{
context.addValidationError(new ValidationError(ERROR_GRAPHIC_OUTPUT_INTENT_ICC_PROFILE_INVALID,
"DestOutputProfile isn't a valid ICCProfile. Caused by : " + e.getMessage(), e));
}
catch (IOException e)
{
context.addValidationError(new ValidationError(ERROR_GRAPHIC_OUTPUT_INTENT_ICC_PROFILE_INVALID,
"Unable to parse the ICCProfile. Caused by : " + e.getMessage(), e));
}
}
}
return null;
}
public static ICCProfileWrapper getOrSearchICCProfile(PreflightContext context) throws ValidationException
{
ICCProfileWrapper profileWrapper = context.getIccProfileWrapper();
if (profileWrapper == null && !context.isIccProfileAlreadySearched())
{
profileWrapper = searchFirstICCProfile(context);
context.setIccProfileAlreadySearched(true);
}
return profileWrapper;
}
}