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Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PdfStructureTreeRoot.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PdfStructureTreeRoot.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PdfStructureTreeRoot.java b/src/main/java/com/lowagie/text/pdf/PdfStructureTreeRoot.java new file mode 100644 index 0000000..e6e8c2c --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfStructureTreeRoot.java @@ -0,0 +1,146 @@ +/*
+ * $Id: PdfStructureTreeRoot.java,v 1.2 2005/10/18 15:30:42 psoares33 Exp $
+ *
+ * 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.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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