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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
*
* ---------------
* PageLookup.java
* ---------------
*/
package org.jpedal.objects;
import java.util.HashMap;
import java.util.Map;
/**
* allow us to lookup pages
*/
public class PageLookup {
/**holds pdf id (ie 4 0 R) which stores each object in reverse so we can lookup*/
private Map pageLookup = new HashMap();
/**
* used to work out page id for the object (returns -1 if no value found)
*/
public int convertObjectToPageNumber(final String offset){
final Integer value=pageLookup.get(offset);
if(value==null) {
return -1;
} else{
return value;
}
}
/**
* The pageLookup to set.
*/
public void put(final String key, final int value) {
pageLookup.put(key, value);
}
public void dispose() {
if(pageLookup!=null) {
pageLookup.clear();
}
pageLookup=null;
}
}