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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2016 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* ID.java
* ---------------
*/
package org.jpedal.parser.image;
import java.awt.Color;
import java.awt.image.BufferedImage;
import org.jpedal.color.ColorspaceFactory;
import org.jpedal.color.DeviceRGBColorSpace;
import org.jpedal.color.GenericColorSpace;
import org.jpedal.external.ErrorTracker;
import org.jpedal.external.ImageHandler;
import org.jpedal.io.*;
import org.jpedal.objects.PdfImageData;
import org.jpedal.objects.PdfPageData;
import org.jpedal.objects.raw.PdfArrayIterator;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.parser.PdfObjectCache;
import org.jpedal.parser.image.data.ImageData;
public class ID extends ImageDecoder {
public ID(final int imageCount, final PdfObjectReader currentPdfFile, final ErrorTracker errorTracker, final ImageHandler customImageHandler, final ObjectStore objectStoreStreamRef, final PdfImageData pdfImages, final PdfPageData pageData, final String imagesInFile) {
super(imageCount, currentPdfFile, errorTracker, customImageHandler, objectStoreStreamRef, pdfImages, pageData, imagesInFile);
}
@Override
public int processImage(int dataPointer, final int startInlineStream, final byte[] stream, final int tokenNumber) throws Exception{
/*
* read Dictionary
*/
final PdfObject XObject=new org.jpedal.objects.raw.XObject(PdfDictionary.ID);
final IDObjectDecoder objectDecoder=new IDObjectDecoder(currentPdfFile.getObjectReader());
objectDecoder.setEndPt(dataPointer-2);
objectDecoder.readDictionaryAsObject(XObject,startInlineStream,stream);
BufferedImage image = null;
final boolean inline_imageMask;
//store pointer to current place in file
int inline_start_pointer = dataPointer + 1;
final int i_w;
final int i_h;
final int i_bpc;
//find end of stream
int i = inline_start_pointer;
final int streamLength=stream.length;
//find end
while (true) {
//look for end EI
//handle Pdflib and xenos variety
if ( streamLength-i>3 && stream[i + 1] == 69 && stream[i + 2] == 73 && ((stream[i+3] == 10 && (streamLength==i+4 || stream[i+4]==81)) || (stream[i+3]==32 && stream[i+4] == 10))){
break;
}
//general case
if ((streamLength-i>3)&&(stream[i] == 32 || stream[i] == 10 || stream[i] == 13 || (stream[i+3] == 32 && stream[i+4] == 'Q'))
&& (stream[i + 1] == 69)
&& (stream[i + 2] == 73)
&& ( stream[i+3] == 32 || stream[i+3] == 10 || stream[i+3] == 13)) {
break;
}
i++;
if(i==streamLength) {
break;
}
}
if(parserOptions.imagesNeeded()){
//load the data
// generate the name including file name to make it unique
final String image_name =parserOptions.getFileName()+ "-IN-" + tokenNumber;
int endPtr=i;
//hack for odd files
if(i