/*
* 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.
*/
/* $Id: ColorProfileUtil.java 627367 2008-02-13 12:03:30Z maxberger $ */
package org.apache.fop.util;
import java.awt.color.ColorSpace;
import java.awt.color.ICC_ColorSpace;
import java.awt.color.ICC_Profile;
import java.io.UnsupportedEncodingException;
/**
* Helper methods for handling color profiles.
*/
public class ColorProfileUtil {
/**
* Returns the profile description of an ICC profile
* @param profile the profile
* @return the description
*/
public static String getICCProfileDescription(ICC_Profile profile) {
byte[] data = profile.getData(ICC_Profile.icSigProfileDescriptionTag);
if (data == null) {
return null;
} else {
//Info on the data format: http://www.color.org/ICC-1_1998-09.PDF
int length = (data[8] << 3 * 8) | (data[9] << 2 * 8) | (data[10] << 8) | data[11];
length--; //Remove trailing NUL character
try {
return new String(data, 12, length, "US-ASCII");
} catch (UnsupportedEncodingException e) {
throw new UnsupportedOperationException("Incompatible VM");
}
}
}
/**
* Indicates whether a given color profile is identical to the default sRGB profile
* provided by the Java class library.
* @param profile the color profile to check
* @return true if it is the default sRGB profile
*/
public static boolean isDefaultsRGB(ICC_Profile profile) {
ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
ICC_Profile sRGBProfile = null;
if (sRGB instanceof ICC_ColorSpace) {
sRGBProfile = ((ICC_ColorSpace)sRGB).getProfile();
}
return profile == sRGBProfile;
}
}