org.jpedal.objects.raw.CompressedObject Maven / Gradle / Ivy

Go to download
/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2015 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


 *
 * ---------------
 * CompressedObject.java
 * ---------------
 */
package org.jpedal.objects.raw;

import org.jpedal.utils.LogWriter;

public class CompressedObject extends PdfObject {

	//unknown CMAP as String
	//String unknownValue=null;

	private int[] Index, W;
	
	byte[][] ID;

	//private float[] Matrix;

	//boolean ImageMask=false;
	
	int First, Prev=-1,XRefStm=-1;

	private PdfObject Encrypt, Extends, Info, Root;

	int Size;

	//private PdfObject OPI=null, XObject=null;

    public CompressedObject(final String ref) {
        super(ref);
    }

    public CompressedObject(final int ref, final int gen) {
       super(ref,gen);
    }

    @Override
    public boolean getBoolean(final int id){

        switch(id){

       // case PdfDictionary.ImageMask:
       // 	return ImageMask;


            default:
            	return super.getBoolean(id);
        }

    }

    @Override
    public void setBoolean(final int id, final boolean value){

        switch(id){

//        case PdfDictionary.ImageMask:
//        	ImageMask=value;
//        	break;

            default:
                super.setBoolean(id, value);
        }
    }

    @Override
    public PdfObject getDictionary(final int id){

        switch(id){

	        case PdfDictionary.Encrypt:
	        	return Encrypt;

            case PdfDictionary.Extends:
	        	return Extends;

            case PdfDictionary.Info:
	        	return Info;

            case PdfDictionary.Root:
	        	return Root;

//            case PdfDictionary.XObject:
//                return XObject;

            default:
                return super.getDictionary(id);
        }
    }

    @Override
    public void setIntNumber(final int id, final int value){

        switch(id){

			case PdfDictionary.First:
	        	First=value;
	        break;

            case PdfDictionary.Prev:

                //some PDFs can get multiple values and second one wrong
                if(Prev==-1) {
                    Prev = value;
                }
	        break;
	        
	        case PdfDictionary.Size:
	        	Size=value;
	        break;
//
//	        case PdfDictionary.Height:
//	            Height=value;
//	        break;
//
	        case PdfDictionary.XRefStm:
	            XRefStm=value;
	        break;

            default:
            	super.setIntNumber(id, value);
        }
    }

    @Override
    public int getInt(final int id){

        switch(id){
        
        	case PdfDictionary.First:
            return First;

            case PdfDictionary.Prev:
            return Prev;

        	case PdfDictionary.Size:
            return Size;
//
//        	case PdfDictionary.Height:
//            return Height;
//
	        case PdfDictionary.XRefStm:
	            return XRefStm;

            default:
            	return super.getInt(id);
        }
    }

    @Override
    public void setDictionary(final int id, final PdfObject value){

    	value.setID(id);
    	
        switch(id){

            case PdfDictionary.Encrypt:
	        	Encrypt=value;
			break;

	        case PdfDictionary.Extends:
	        	Extends=value;
			break;

            case PdfDictionary.Info:
	        	Info=value;
			break;

            case PdfDictionary.Root:
	        	Root=value;
			break;

//            case PdfDictionary.XObject:
//            	XObject=value;
//    		break;

            default:
            	super.setDictionary(id, value);
        }
    }


    @Override
    public int setConstant(final int pdfKeyType, final int keyStart, final int keyLength, final byte[] raw) {

        int PDFvalue =PdfDictionary.Unknown;

        int id=0,x=0,next;

        try{

            //convert token to unique key which we can lookup

            for(int i2=keyLength-1;i2>-1;i2--){

            	next=raw[keyStart+i2];

            	//System.out.println((char)next);
            	next -= 48;

                id += ((next)<6 && data[6]=='+'){ //lose ABCDEF+ if present
                		final int length=len-7;
                		final byte[] newData=new byte[length];
                		System.arraycopy(data, 7, newData, 0, length);
                		return new String(newData);
                	}else {
                        return new String(data);
                    }
                }else {
                    return null;
                }

            default:
                throw new RuntimeException("Value not defined in getName(int,mode) in "+this);
        }
    }
    
    @Override
    public byte[][] getKeyArray(final int id) {

        switch(id){
           default:
            	return super.getKeyArray(id);
        }
    }

    @Override
    public boolean decompressStreamWhenRead() {
		return true;
	}

    @Override
    public void setKeyArray(final int id, final byte[][] value) {

        switch(id){

//            case PdfDictionary.TR:
//                TR=value;
//            break;

            default:
            	super.setKeyArray(id, value);
        }

    }


    @Override
    public int getObjectType(){
    	return PdfDictionary.CompressedObject;
    }
}