diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/SimpleNamedDestination.java | 335 |
1 files changed, 335 insertions, 0 deletions
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:
+ * <p>
+ * <pre>
+ * <?xml version='1.0' encoding='UTF-8'?>
+ * <!ELEMENT Name (#PCDATA)>
+ * <!ATTLIST Name
+ * Page CDATA #IMPLIED
+ * >
+ * <!ELEMENT Destination (Name)*>
+ * </pre>
+ * @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 <CODE>true</CODE>,
+ * 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 <CODE>true</CODE>,
+ * whatever the encoding
+ * @throws IOException on error
+ */
+ public static void exportToXML(HashMap names, Writer wrt, String encoding, boolean onlyASCII) throws IOException {
+ wrt.write("<?xml version=\"1.0\" encoding=\"");
+ wrt.write(SimpleXMLParser.escapeXML(encoding, onlyASCII));
+ wrt.write("\"?>\n<Destination>\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(" <Name Page=\"");
+ wrt.write(SimpleXMLParser.escapeXML(value, onlyASCII));
+ wrt.write("\">");
+ wrt.write(SimpleXMLParser.escapeXML(escapeBinaryString(key), onlyASCII));
+ wrt.write("</Name>\n");
+ }
+ wrt.write("</Destination>\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 |