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/*
* $Id: PRTokeniser.java,v 1.15 2002/06/20 13:30:25 blowagie Exp $
*
* Copyright 2005 by Paulo Soares.
*
*
* 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.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*
* 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.pdf;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.io.IOException;
/**
* The structure tree root corresponds to the highest hierarchy level in a tagged PDF.
* @author Paulo Soares (psoares@consiste.pt)
*/
public class PdfStructureTreeRoot extends PdfDictionary {
private HashMap parentTree = new HashMap();
private PdfIndirectReference reference;
/**
* Holds value of property writer.
*/
private PdfWriter writer;
/** Creates a new instance of PdfStructureTreeRoot */
PdfStructureTreeRoot(PdfWriter writer) {
super(PdfName.STRUCTTREEROOT);
this.writer = writer;
reference = writer.getPdfIndirectReference();
}
/**
* Maps the user tags to the standard tags. The mapping will allow a standard application to make some sense of the tagged
* document whatever the user tags may be.
* @param used the user tag
* @param standard the standard tag
*/
public void mapRole(PdfName used, PdfName standard) {
PdfDictionary rm = (PdfDictionary)get(PdfName.ROLEMAP);
if (rm == null) {
rm = new PdfDictionary();
put(PdfName.ROLEMAP, rm);
}
rm.put(used, standard);
}
/**
* Gets the writer.
* @return the writer
*/
public PdfWriter getWriter() {
return this.writer;
}
/**
* Gets the reference this object will be written to.
* @return the reference this object will be written to
*/
public PdfIndirectReference getReference() {
return this.reference;
}
void setPageMark(int page, PdfIndirectReference struc) {
Integer i = new Integer(page);
PdfArray ar = (PdfArray)parentTree.get(i);
if (ar == null) {
ar = new PdfArray();
parentTree.put(i, ar);
}
ar.add(struc);
}
private void nodeProcess(PdfDictionary struc, PdfIndirectReference reference) throws IOException {
PdfObject obj = struc.get(PdfName.K);
if (obj != null && obj.isArray() && !((PdfObject)((PdfArray)obj).getArrayList().get(0)).isNumber()) {
PdfArray ar = (PdfArray)obj;
ArrayList a = ar.getArrayList();
for (int k = 0; k < a.size(); ++k) {
PdfStructureElement e = (PdfStructureElement)a.get(k);
a.set(k, e.getReference());
nodeProcess(e, e.getReference());
}
}
if (reference != null)
writer.addToBody(struc, reference);
}
void buildTree() throws IOException {
HashMap numTree = new HashMap();
for (Iterator it = parentTree.keySet().iterator(); it.hasNext();) {
Integer i = (Integer)it.next();
PdfArray ar = (PdfArray)parentTree.get(i);
numTree.put(i, writer.addToBody(ar).getIndirectReference());
}
PdfDictionary dicTree = PdfNumberTree.writeTree(numTree, writer);
if (dicTree != null)
put(PdfName.PARENTTREE, writer.addToBody(dicTree).getIndirectReference());
nodeProcess(this, reference);
}
}
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