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/*
* $Id: PdfStructureTreeRoot.java 3914 2009-04-26 09:16:47Z blowagie $
*
* Copyright 2005 by Paulo Soares.
*
* 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:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
/**
* 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
* @since 2.1.6 method removed in 2.1.5, but restored in 2.1.6
*/
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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