PdfImage.java
/*
* $Id: PdfImage.java 4067 2009-09-19 12:56:50Z psoares33 $
*
* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
*
* 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, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 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:
* https://github.com/LibrePDF/OpenPDF
*/
package org.openpdf.text.pdf;
import org.openpdf.text.Image;
import org.openpdf.text.error_messages.MessageLocalization;
/**
* <CODE>PdfImage</CODE> is a <CODE>PdfStream</CODE> containing an image-<CODE>Dictionary</CODE> and -stream.
*/
public class PdfImage extends PdfStream {
// membervariables
/**
* This is the <CODE>PdfName</CODE> of the image.
*/
protected PdfName name = null;
// constructor
/**
* Constructs a <CODE>PdfImage</CODE>-object.
*
* @param image the <CODE>Image</CODE>-object
* @param name the <CODE>PdfName</CODE> for this image
* @param maskRef the <CODE>PdfIndirectReference</CODE>
* @throws BadPdfFormatException on error
*/
public PdfImage(Image image, String name, PdfIndirectReference maskRef) throws BadPdfFormatException {
super();
this.name = new PdfName(name);
put(PdfName.TYPE, PdfName.XOBJECT);
put(PdfName.SUBTYPE, PdfName.IMAGE);
put(PdfName.WIDTH, new PdfNumber(image.getWidth()));
put(PdfName.HEIGHT, new PdfNumber(image.getHeight()));
if (image.isMask() && (image.getBpc() == 1 || image.getBpc() > 0xff)) {
put(PdfName.IMAGEMASK, PdfBoolean.PDFTRUE);
}
if (maskRef != null) {
if (image.isSmask()) {
put(PdfName.SMASK, maskRef);
} else {
put(PdfName.MASK, maskRef);
}
}
if (image.isMask() && image.isInverted()) {
put(PdfName.DECODE, new PdfLiteral("[1 0]"));
}
if (image.isInterpolation()) {
put(PdfName.INTERPOLATE, PdfBoolean.PDFTRUE);
}
// Raw Image data
if (image.isImgRaw()) {
// will also have the CCITT parameters
int colorspace = image.getColorspace();
int[] transparency = image.getTransparency();
if (transparency != null && !image.isMask() && maskRef == null) {
String s = "[";
for (int i : transparency) {
s += i + " ";
}
s += "]";
put(PdfName.MASK, new PdfLiteral(s));
}
bytes = image.getRawData();
put(PdfName.LENGTH, new PdfNumber(bytes.length));
int bpc = image.getBpc();
if (bpc > 0xff) {
if (!image.isMask()) {
put(PdfName.COLORSPACE, PdfName.DEVICEGRAY);
}
put(PdfName.BITSPERCOMPONENT, new PdfNumber(1));
put(PdfName.FILTER, PdfName.CCITTFAXDECODE);
int k = bpc - Image.CCITTG3_1D;
PdfDictionary decodeparms = new PdfDictionary();
if (k != 0) {
decodeparms.put(PdfName.K, new PdfNumber(k));
}
if ((colorspace & Image.CCITT_BLACKIS1) != 0) {
decodeparms.put(PdfName.BLACKIS1, PdfBoolean.PDFTRUE);
}
if ((colorspace & Image.CCITT_ENCODEDBYTEALIGN) != 0) {
decodeparms.put(PdfName.ENCODEDBYTEALIGN, PdfBoolean.PDFTRUE);
}
if ((colorspace & Image.CCITT_ENDOFLINE) != 0) {
decodeparms.put(PdfName.ENDOFLINE, PdfBoolean.PDFTRUE);
}
if ((colorspace & Image.CCITT_ENDOFBLOCK) != 0) {
decodeparms.put(PdfName.ENDOFBLOCK, PdfBoolean.PDFFALSE);
}
decodeparms.put(PdfName.COLUMNS, new PdfNumber(image.getWidth()));
decodeparms.put(PdfName.ROWS, new PdfNumber(image.getHeight()));
put(PdfName.DECODEPARMS, decodeparms);
} else {
switch (colorspace) {
case 1:
put(PdfName.COLORSPACE, PdfName.DEVICEGRAY);
if (image.isInverted()) {
put(PdfName.DECODE, new PdfLiteral("[1 0]"));
}
break;
case 3:
put(PdfName.COLORSPACE, PdfName.DEVICERGB);
if (image.isInverted()) {
put(PdfName.DECODE, new PdfLiteral("[1 0 1 0 1 0]"));
}
break;
case 4:
default:
put(PdfName.COLORSPACE, PdfName.DEVICECMYK);
if (image.isInverted()) {
put(PdfName.DECODE, new PdfLiteral("[1 0 1 0 1 0 1 0]"));
}
}
PdfDictionary additional = image.getAdditional();
if (additional != null) {
putAll(additional);
}
if (image.isMask() && (image.getBpc() == 1 || image.getBpc() > 8)) {
remove(PdfName.COLORSPACE);
}
put(PdfName.BITSPERCOMPONENT, new PdfNumber(image.getBpc()));
if (image.isDeflated()) {
put(PdfName.FILTER, PdfName.FLATEDECODE);
} else {
flateCompress(image.getCompressionLevel());
}
}
return;
}
// This pruned OpenPDF only knows raw images (see Image.getInstance(int, int, int, int, byte[]))
throw new BadPdfFormatException(
MessageLocalization.getComposedMessage("1.is.an.unknown.image.format", "Not a raw image"));
}
/**
* Returns the <CODE>PdfName</CODE> of the image.
*
* @return the name
*/
public PdfName name() {
return name;
}
}