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/*
* $Id: ImgJBIG2.java 3962 2009-06-10 11:43:19Z psoares33 $
*
* Copyright 2009 by Nigel Kerr.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2009 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000-2009 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text;
import java.net.URL;
import java.security.MessageDigest;
/**
* Support for JBIG2 images.
* @since 2.1.5
*/
public class ImgJBIG2 extends Image {
/** JBIG2 globals */
private byte[] global;
/** A unique hash */
private byte[] globalHash;
/**
* Copy contstructor.
* @param image another Image
*/
ImgJBIG2(Image image) {
super(image);
}
/**
* Empty constructor.
*/
public ImgJBIG2() {
super((Image) null);
}
/**
* Actual constructor for ImgJBIG2 images.
* @param width the width of the image
* @param height the height of the image
* @param data the raw image data
* @param globals JBIG2 globals
*/
public ImgJBIG2(int width, int height, byte[] data, byte[] globals) {
super((URL) null);
type = JBIG2;
originalType = ORIGINAL_JBIG2;
scaledHeight = height;
setTop(scaledHeight);
scaledWidth = width;
setRight(scaledWidth);
bpc = 1;
colorspace = 1;
rawData = data;
plainWidth = getWidth();
plainHeight = getHeight();
if ( globals != null ) {
this.global = globals;
MessageDigest md;
try {
md = MessageDigest.getInstance("MD5");
md.update(this.global);
this.globalHash = md.digest();
} catch (Exception e) {
//ignore
}
}
}
/**
* Getter for the JBIG2 global data.
* @return an array of bytes
*/
public byte[] getGlobalBytes() {
return this.global;
}
/**
* Getter for the unique hash.
* @return an array of bytes
*/
public byte[] getGlobalHash() {
return this.globalHash;
}
}
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