diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PdfNameTree.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PdfNameTree.java | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PdfNameTree.java b/src/main/java/com/lowagie/text/pdf/PdfNameTree.java deleted file mode 100644 index 999fca8..0000000 --- a/src/main/java/com/lowagie/text/pdf/PdfNameTree.java +++ /dev/null @@ -1,165 +0,0 @@ -/*
- * Copyright 2004 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.HashMap;
-import java.util.Arrays;
-import java.util.ArrayList;
-import java.io.IOException;
-import com.lowagie.text.StringCompare;
-
-/**
- * Creates a name tree.
- * @author Paulo Soares (psoares@consiste.pt)
- */
-public class PdfNameTree {
-
- private static final int leafSize = 64;
- private static final StringCompare stringCompare = new StringCompare();
-
- /**
- * Creates a name tree.
- * @param items the item of the name tree. The key is a <CODE>String</CODE>
- * and the value is a <CODE>PdfObject</CODE>. Note that although the
- * keys are strings only the lower byte is used and no check is made for chars
- * with the same lower byte and different upper byte. This will generate a wrong
- * tree name.
- * @param writer the writer
- * @throws IOException on error
- * @return the dictionary with the name tree. This dictionary is the one
- * generally pointed to by the key /Dests, for example
- */
- public static PdfDictionary writeTree(HashMap items, PdfWriter writer) throws IOException {
- if (items.size() == 0)
- return null;
- String names[] = new String[items.size()];
- names = (String[])items.keySet().toArray(names);
- Arrays.sort(names, stringCompare);
- if (names.length <= leafSize) {
- PdfDictionary dic = new PdfDictionary();
- PdfArray ar = new PdfArray();
- for (int k = 0; k < names.length; ++k) {
- ar.add(new PdfString(names[k], null));
- ar.add((PdfObject)items.get(names[k]));
- }
- dic.put(PdfName.NAMES, ar);
- return dic;
- }
- int skip = leafSize;
- PdfIndirectReference kids[] = new PdfIndirectReference[(names.length + leafSize - 1) / leafSize];
- for (int k = 0; k < kids.length; ++k) {
- int offset = k * leafSize;
- int end = Math.min(offset + leafSize, names.length);
- PdfDictionary dic = new PdfDictionary();
- PdfArray arr = new PdfArray();
- arr.add(new PdfString(names[offset], null));
- arr.add(new PdfString(names[end - 1], null));
- dic.put(PdfName.LIMITS, arr);
- arr = new PdfArray();
- for (; offset < end; ++offset) {
- arr.add(new PdfString(names[offset], null));
- arr.add((PdfObject)items.get(names[offset]));
- }
- dic.put(PdfName.NAMES, arr);
- kids[k] = writer.addToBody(dic).getIndirectReference();
- }
- int top = kids.length;
- while (true) {
- if (top <= leafSize) {
- PdfArray arr = new PdfArray();
- for (int k = 0; k < top; ++k)
- arr.add(kids[k]);
- PdfDictionary dic = new PdfDictionary();
- dic.put(PdfName.KIDS, arr);
- return dic;
- }
- skip *= leafSize;
- int tt = (names.length + skip - 1 )/ skip;
- for (int k = 0; k < tt; ++k) {
- int offset = k * leafSize;
- int end = Math.min(offset + leafSize, top);
- PdfDictionary dic = new PdfDictionary();
- PdfArray arr = new PdfArray();
- arr.add(new PdfString(names[k * skip], null));
- arr.add(new PdfString(names[Math.min((k + 1) * skip, names.length) - 1], null));
- dic.put(PdfName.LIMITS, arr);
- arr = new PdfArray();
- for (; offset < end; ++offset) {
- arr.add(kids[offset]);
- }
- dic.put(PdfName.KIDS, arr);
- kids[k] = writer.addToBody(dic).getIndirectReference();
- }
- top = tt;
- }
- }
-
- private static void iterateItems(PdfDictionary dic, HashMap items) {
- PdfArray nn = (PdfArray)PdfReader.getPdfObjectRelease(dic.get(PdfName.NAMES));
- if (nn != null) {
- ArrayList arr = nn.getArrayList();
- for (int k = 0; k < arr.size(); ++k) {
- PdfString s = (PdfString)PdfReader.getPdfObjectRelease((PdfObject)arr.get(k++));
- items.put(PdfEncodings.convertToString(s.getBytes(), null), arr.get(k));
- }
- }
- else if ((nn = (PdfArray)PdfReader.getPdfObjectRelease(dic.get(PdfName.KIDS))) != null) {
- ArrayList arr = nn.getArrayList();
- for (int k = 0; k < arr.size(); ++k) {
- PdfDictionary kid = (PdfDictionary)PdfReader.getPdfObjectRelease((PdfObject)arr.get(k));
- iterateItems(kid, items);
- }
- }
- }
-
- public static HashMap readTree(PdfDictionary dic) {
- HashMap items = new HashMap();
- if (dic != null)
- iterateItems(dic, items);
- return items;
- }
-}
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