using System; using System.Collections; using System.Text; using System.util; using iTextSharp.text; /* * Copyright 2005 by Michael Niedermair. * * 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) 1999-2005 by Bruno Lowagie. * All Rights Reserved. * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer * are Copyright (C) 2000-2005 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/ */ namespace iTextSharp.text.pdf.events { /** * Class for an index. * * @author Michael Niedermair */ public class IndexEvents : PdfPageEventHelper { /** * keeps the indextag with the pagenumber */ private Hashtable indextag = new Hashtable(); /** * All the text that is passed to this event, gets registered in the indexentry. * * @see com.lowagie.text.pdf.PdfPageEventHelper#onGenericTag( * com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document, * com.lowagie.text.Rectangle, java.lang.String) */ public override void OnGenericTag(PdfWriter writer, Document document, Rectangle rect, String text) { indextag[text] = writer.PageNumber; } // -------------------------------------------------------------------- /** * indexcounter */ private long indexcounter = 0; /** * the list for the index entry */ private ArrayList indexentry = new ArrayList(); /** * Create an index entry. * * @param text The text for the Chunk. * @param in1 The first level. * @param in2 The second level. * @param in3 The third level. * @return Returns the Chunk. */ public Chunk Create(String text, String in1, String in2, String in3) { Chunk chunk = new Chunk(text); String tag = "idx_" + (indexcounter++); chunk.SetGenericTag(tag); chunk.SetLocalDestination(tag); Entry entry = new Entry(in1, in2, in3, tag, this); indexentry.Add(entry); return chunk; } /** * Create an index entry. * * @param text The text for the Chunk. * @param in1 The first level. * @return Returns the Chunk. */ public Chunk Create(String text, String in1) { return Create(text, in1, "", ""); } /** * Create an index entry. * * @param text The text for the Chunk. * @param in1 The first level. * @param in2 The second level. * @return Returns the Chunk. */ public Chunk Create(String text, String in1, String in2) { return Create(text, in1, in2, ""); } /** * Create an index entry. * * @param text The text. * @param in1 The first level. * @param in2 The second level. * @param in3 The third level. */ public void Create(Chunk text, String in1, String in2, String in3) { String tag = "idx_" + (indexcounter++); text.SetGenericTag(tag); text.SetLocalDestination(tag); Entry entry = new Entry(in1, in2, in3, tag, this); indexentry.Add(entry); } /** * Create an index entry. * * @param text The text. * @param in1 The first level. */ public void Create(Chunk text, String in1) { Create(text, in1, "", ""); } /** * Create an index entry. * * @param text The text. * @param in1 The first level. * @param in2 The second level. */ public void Create(Chunk text, String in1, String in2) { Create(text, in1, in2, ""); } private class ISortIndex : IComparer { public int Compare(object arg0, object arg1) { Entry en1 = (Entry) arg0; Entry en2 = (Entry) arg1; int rt = 0; if (en1.GetIn1() != null && en2.GetIn1() != null) { if ((rt = Util.CompareToIgnoreCase(en1.GetIn1(),en2.GetIn1())) == 0) { // in1 equals if (en1.GetIn2() != null && en2.GetIn2() != null) { if ((rt = Util.CompareToIgnoreCase(en1.GetIn2(), en2.GetIn2())) == 0) { // in2 equals if (en1.GetIn3() != null && en2.GetIn3() != null) { rt = Util.CompareToIgnoreCase(en1.GetIn3(), en2.GetIn3()); } } } } } return rt; } } /** * Comparator for sorting the index */ private IComparer comparator = new ISortIndex(); /** * Set the comparator. * @param aComparator The comparator to set. */ public void SetComparator(IComparer aComparator) { comparator = aComparator; } /** * Returns the sorted list with the entries and the collected page numbers. * @return Returns the sorted list with the entries and teh collected page numbers. */ public ArrayList GetSortedEntries() { Hashtable grouped = new Hashtable(); for (int i = 0; i < indexentry.Count; i++) { Entry e = (Entry) indexentry[i]; String key = e.GetKey(); Entry master = (Entry) grouped[key]; if (master != null) { master.AddPageNumberAndTag(e.GetPageNumber(), e.GetTag()); } else { e.AddPageNumberAndTag(e.GetPageNumber(), e.GetTag()); grouped[key] = e; } } // copy to a list and sort it ArrayList sorted = new ArrayList(grouped.Values); sorted.Sort(0, sorted.Count, comparator); return sorted; } // -------------------------------------------------------------------- /** * Class for an index entry. *

* In the first step, only in1, in2,in3 and tag are used. * After the collections of the index entries, pagenumbers are used. *

*/ public class Entry { /** * first level */ private String in1; /** * second level */ private String in2; /** * third level */ private String in3; /** * the tag */ private String tag; /** * the lsit of all page numbers. */ private ArrayList pagenumbers = new ArrayList(); /** * the lsit of all tags. */ private ArrayList tags = new ArrayList(); private IndexEvents parent; /** * Create a new object. * @param aIn1 The first level. * @param aIn2 The second level. * @param aIn3 The third level. * @param aTag The tag. */ public Entry(String aIn1, String aIn2, String aIn3, String aTag, IndexEvents parent) { in1 = aIn1; in2 = aIn2; in3 = aIn3; tag = aTag; this.parent = parent; } /** * Returns the in1. * @return Returns the in1. */ public String GetIn1() { return in1; } /** * Returns the in2. * @return Returns the in2. */ public String GetIn2() { return in2; } /** * Returns the in3. * @return Returns the in3. */ public String GetIn3() { return in3; } /** * Returns the tag. * @return Returns the tag. */ public String GetTag() { return tag; } /** * Returns the pagenumer for this entry. * @return Returns the pagenumer for this entry. */ public int GetPageNumber() { int rt = -1; object i = parent.indextag[tag]; if (i != null) { rt = (int)i; } return rt; } /** * Add a pagenumber. * @param number The page number. * @param tag */ public void AddPageNumberAndTag(int number, String tag) { pagenumbers.Add(number); tags.Add(tag); } /** * Returns the key for the map-entry. * @return Returns the key for the map-entry. */ public String GetKey() { return in1 + "!" + in2 + "!" + in3; } /** * Returns the pagenumbers. * @return Returns the pagenumbers. */ public ArrayList GetPagenumbers() { return pagenumbers; } /** * Returns the tags. * @return Returns the tags. */ public ArrayList GetTags() { return tags; } /** * print the entry (only for test) * @return the toString implementation of the entry */ public override String ToString() { StringBuilder buf = new StringBuilder(); buf.Append(in1).Append(' '); buf.Append(in2).Append(' '); buf.Append(in3).Append(' '); for (int i = 0; i < pagenumbers.Count; i++) { buf.Append(pagenumbers[i]).Append(' '); } return buf.ToString(); } } } }