com.aowagie.text.pdf.SimpleNamedDestination Maven / Gradle / Ivy
/*
* 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.aowagie.text.pdf;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.StringTokenizer;
import com.aowagie.text.xml.simpleparser.SimpleXMLDocHandler;
import com.aowagie.text.xml.simpleparser.SimpleXMLParser;
/**
*
* @author Paulo Soares ([email protected])
*/
final class SimpleNamedDestination implements SimpleXMLDocHandler {
private HashMap xmlNames;
private HashMap xmlLast;
private SimpleNamedDestination() {
}
/**
* Exports the destinations 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
*/
private static void exportToXML(final HashMap names, final Writer wrt, final String encoding, final boolean onlyASCII) throws IOException {
wrt.write("\n\n");
for (final Iterator it = names.entrySet().iterator(); it.hasNext();) {
final Map.Entry entry = (Map.Entry)it.next();
final String key = (String)entry.getKey();
final String value = (String)entry.getValue();
wrt.write(" ");
wrt.write(SimpleXMLParser.escapeXML(escapeBinaryString(key), onlyASCII));
wrt.write(" \n");
}
wrt.write(" \n");
wrt.flush();
}
private static PdfArray createDestinationArray(final String value, final PdfWriter writer) {
final PdfArray ar = new PdfArray();
final StringTokenizer tk = new StringTokenizer(value);
final 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;
}
static String escapeBinaryString(final String s) {
final StringBuffer buf = new StringBuffer();
final char cc[] = s.toCharArray();
final int len = cc.length;
for (int k = 0; k < len; ++k) {
final char c = cc[k];
if (c < ' ') {
buf.append('\\');
final String octal = "00" + Integer.toOctalString(c);
buf.append(octal.substring(octal.length() - 3));
}
else if (c == '\\') {
buf.append("\\\\");
} else {
buf.append(c);
}
}
return buf.toString();
}
static String unEscapeBinaryString(final String s) {
final StringBuffer buf = new StringBuffer();
final char cc[] = s.toCharArray();
final 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();
}
@Override
public void endDocument() {
}
@Override
public void endElement(final String tag) {
if (tag.equals("Destination")) {
if (this.xmlLast == null && this.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 (this.xmlLast == null || this.xmlNames == null) {
throw new RuntimeException("Name end tag out of place.");
}
if (!this.xmlLast.containsKey("Page")) {
throw new RuntimeException("Page attribute missing.");
}
this.xmlNames.put(unEscapeBinaryString((String)this.xmlLast.get("Name")), this.xmlLast.get("Page"));
this.xmlLast = null;
}
@Override
public void startDocument() {
}
@Override
public void startElement(final String tag, final HashMap h) {
if (this.xmlNames == null) {
if (tag.equals("Destination")) {
this.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 (this.xmlLast != null) {
throw new RuntimeException("Nested tags are not allowed.");
}
this.xmlLast = new HashMap(h);
this.xmlLast.put("Name", "");
}
@Override
public void text(final String str) {
if (this.xmlLast == null) {
return;
}
String name = (String)this.xmlLast.get("Name");
name += str;
this.xmlLast.put("Name", name);
}
}