From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../lowagie/text/pdf/SimpleNamedDestination.java | 335 +++++++++++++++++++++ 1 file changed, 335 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java (limited to 'src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java') diff --git a/src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java b/src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java new file mode 100644 index 0000000..1d6410c --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java @@ -0,0 +1,335 @@ +/* + * 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.Map; +import java.util.Iterator; +import java.util.ArrayList; +import java.util.StringTokenizer; +import java.io.IOException; +import java.io.OutputStream; +import java.io.OutputStreamWriter; +import java.io.Writer; +import java.io.BufferedWriter; +import java.io.InputStream; +import java.io.Reader; + +/** + * + * @author Paulo Soares (psoares@consiste.pt) + */ +public class SimpleNamedDestination implements SimpleXMLDocHandler { + + private HashMap xmlNames; + private HashMap xmlLast; + + private SimpleNamedDestination() { + } + + public static HashMap getNamedDestination(PdfReader reader, boolean fromNames) { + IntHashtable pages = new IntHashtable(); + int numPages = reader.getNumberOfPages(); + for (int k = 1; k <= numPages; ++k) + pages.put(reader.getPageOrigRef(k).getNumber(), k); + HashMap names = fromNames ? reader.getNamedDestinationFromNames() : reader.getNamedDestinationFromStrings(); + for (Iterator it = names.entrySet().iterator(); it.hasNext();) { + Map.Entry entry = (Map.Entry)it.next(); + ArrayList arr = ((PdfArray)entry.getValue()).getArrayList(); + StringBuffer s = new StringBuffer(); + try { + s.append(pages.get(((PdfIndirectReference)arr.get(0)).getNumber())); + s.append(' ').append(arr.get(1).toString().substring(1)); + for (int k = 2; k < arr.size(); ++k) + s.append(' ').append(arr.get(k).toString()); + entry.setValue(s.toString()); + } + catch (Exception e) { + it.remove(); + } + } + return names; + } + + /** + * Exports the bookmarks to XML. The DTD for this XML is: + *

+ * 

+     * <?xml version='1.0' encoding='UTF-8'?>
+     * <!ELEMENT Name (#PCDATA)>
+     * <!ATTLIST Name
+     *    Page CDATA #IMPLIED
+     * >
+     * <!ELEMENT Destination (Name)*>
+     *
+ * @param names the names + * @param out the export destination. The stream is not closed + * @param encoding the encoding according to IANA conventions + * @param onlyASCII codes above 127 will always be escaped with &#nn; if true, + * whatever the encoding + * @throws IOException on error + */ + public static void exportToXML(HashMap names, OutputStream out, String encoding, boolean onlyASCII) throws IOException { + String jenc = SimpleXMLParser.getJavaEncoding(encoding); + Writer wrt = new BufferedWriter(new OutputStreamWriter(out, jenc)); + exportToXML(names, wrt, encoding, onlyASCII); + } + + /** + * Exports the bookmarks to XML. + * @param names the names + * @param wrt the export destination. The writer is not closed + * @param encoding the encoding according to IANA conventions + * @param onlyASCII codes above 127 will always be escaped with &#nn; if true, + * whatever the encoding + * @throws IOException on error + */ + public static void exportToXML(HashMap names, Writer wrt, String encoding, boolean onlyASCII) throws IOException { + wrt.write("\n\n"); + for (Iterator it = names.entrySet().iterator(); it.hasNext();) { + Map.Entry entry = (Map.Entry)it.next(); + String key = (String)entry.getKey(); + String value = (String)entry.getValue(); + wrt.write(" "); + wrt.write(SimpleXMLParser.escapeXML(escapeBinaryString(key), onlyASCII)); + wrt.write("\n"); + } + wrt.write("\n"); + wrt.flush(); + } + + /** + * Import the names from XML. + * @param in the XML source. The stream is not closed + * @throws IOException on error + * @return the names + */ + public static HashMap importFromXML(InputStream in) throws IOException { + SimpleNamedDestination names = new SimpleNamedDestination(); + SimpleXMLParser.parse(names, in); + return names.xmlNames; + } + + /** + * Import the names from XML. + * @param in the XML source. The reader is not closed + * @throws IOException on error + * @return the names + */ + public static HashMap importFromXML(Reader in) throws IOException { + SimpleNamedDestination names = new SimpleNamedDestination(); + SimpleXMLParser.parse(names, in); + return names.xmlNames; + } + + static PdfArray createDestinationArray(String value, PdfWriter writer) throws IOException { + PdfArray ar = new PdfArray(); + StringTokenizer tk = new StringTokenizer(value); + int n = Integer.parseInt(tk.nextToken()); + ar.add(writer.getPageReference(n)); + if (!tk.hasMoreTokens()) { + ar.add(PdfName.XYZ); + ar.add(new float[]{0, 10000, 0}); + } + else { + String fn = tk.nextToken(); + if (fn.startsWith("/")) + fn = fn.substring(1); + ar.add(new PdfName(fn)); + for (int k = 0; k < 4 && tk.hasMoreTokens(); ++k) { + fn = tk.nextToken(); + if (fn.equals("null")) + ar.add(PdfNull.PDFNULL); + else + ar.add(new PdfNumber(fn)); + } + } + return ar; + } + + public static PdfDictionary outputNamedDestinationAsNames(HashMap names, PdfWriter writer) throws IOException { + PdfDictionary dic = new PdfDictionary(); + for (Iterator it = names.entrySet().iterator(); it.hasNext();) { + Map.Entry entry = (Map.Entry)it.next(); + try { + String key = (String)entry.getKey(); + String value = (String)entry.getValue(); + PdfArray ar = createDestinationArray(value, writer); + PdfName kn = new PdfName(key); + dic.put(kn, ar); + } + catch (Exception e) { + // empty on purpose + } + } + return dic; + } + + public static PdfDictionary outputNamedDestinationAsStrings(HashMap names, PdfWriter writer) throws IOException { + HashMap n2 = new HashMap(names); + for (Iterator it = n2.entrySet().iterator(); it.hasNext();) { + Map.Entry entry = (Map.Entry)it.next(); + try { + String value = (String)entry.getValue(); + PdfArray ar = createDestinationArray(value, writer); + entry.setValue(writer.addToBody(ar).getIndirectReference()); + } + catch (Exception e) { + it.remove(); + } + } + return PdfNameTree.writeTree(n2, writer); + } + + public static String escapeBinaryString(String s) { + StringBuffer buf = new StringBuffer(); + char cc[] = s.toCharArray(); + int len = cc.length; + for (int k = 0; k < len; ++k) { + char c = cc[k]; + if (c < ' ') { + buf.append('\\'); + String octal = "00" + Integer.toOctalString((int)c); + buf.append(octal.substring(octal.length() - 3)); + } + else if (c == '\\') + buf.append("\\\\"); + else + buf.append(c); + } + return buf.toString(); + } + + public static String unEscapeBinaryString(String s) { + StringBuffer buf = new StringBuffer(); + char cc[] = s.toCharArray(); + int len = cc.length; + for (int k = 0; k < len; ++k) { + char c = cc[k]; + if (c == '\\') { + if (++k >= len) { + buf.append('\\'); + break; + } + c = cc[k]; + if (c >= '0' && c <= '7') { + int n = c - '0'; + ++k; + for (int j = 0; j < 2 && k < len; ++j) { + c = cc[k]; + if (c >= '0' && c <= '7') { + ++k; + n = n * 8 + c - '0'; + } + else { + break; + } + } + --k; + buf.append((char)n); + } + else + buf.append(c); + } + else + buf.append(c); + } + return buf.toString(); + } + + public void endDocument() { + } + + public void endElement(String tag) { + if (tag.equals("Destination")) { + if (xmlLast == null && xmlNames != null) + return; + else + throw new RuntimeException("Destination end tag out of place."); + } + if (!tag.equals("Name")) + throw new RuntimeException("Invalid end tag - " + tag); + if (xmlLast == null || xmlNames == null) + throw new RuntimeException("Name end tag out of place."); + if (!xmlLast.containsKey("Page")) + throw new RuntimeException("Page attribute missing."); + xmlNames.put(unEscapeBinaryString((String)xmlLast.get("Name")), xmlLast.get("Page")); + xmlLast = null; + } + + public void startDocument() { + } + + public void startElement(String tag, HashMap h) { + if (xmlNames == null) { + if (tag.equals("Destination")) { + xmlNames = new HashMap(); + return; + } + else + throw new RuntimeException("Root element is not Destination."); + } + if (!tag.equals("Name")) + throw new RuntimeException("Tag " + tag + " not allowed."); + if (xmlLast != null) + throw new RuntimeException("Nested tags are not allowed."); + xmlLast = new HashMap(h); + xmlLast.put("Name", ""); + } + + public void text(String str) { + if (xmlLast == null) + return; + String name = (String)xmlLast.get("Name"); + name += str; + xmlLast.put("Name", name); + } +} \ No newline at end of file -- cgit v1.2.3