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 --- src/main/java/com/lowagie/text/pdf/FdfWriter.java | 333 ++++++++++++++++++++++ 1 file changed, 333 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/FdfWriter.java (limited to 'src/main/java/com/lowagie/text/pdf/FdfWriter.java') diff --git a/src/main/java/com/lowagie/text/pdf/FdfWriter.java b/src/main/java/com/lowagie/text/pdf/FdfWriter.java new file mode 100644 index 0000000..1174e8f --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/FdfWriter.java @@ -0,0 +1,333 @@ +/* + * Copyright 2003 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.io.IOException; +import java.io.OutputStream; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.Map; +import java.util.Iterator; +import java.util.StringTokenizer; + +import com.lowagie.text.DocWriter; +import com.lowagie.text.DocumentException; + +/** Writes an FDF form. + * @author Paulo Soares (psoares@consiste.pt) + */ +public class FdfWriter { + static byte[] HEADER_FDF = DocWriter.getISOBytes("%FDF-1.2\n%\u00e2\u00e3\u00cf\u00d3\n"); + HashMap fields = new HashMap(); + + /** The PDF file associated with the FDF. */ + private String file; + + /** Creates a new FdfWriter. */ + public FdfWriter() { + } + + /** Writes the content to a stream. + * @param os the stream + * @throws DocumentException on error + * @throws IOException on error + */ + public void writeTo(OutputStream os) throws DocumentException, IOException { + Wrt wrt = new Wrt(os, this); + wrt.writeTo(); + } + + boolean setField(String field, PdfObject value) { + HashMap map = fields; + StringTokenizer tk = new StringTokenizer(field, "."); + if (!tk.hasMoreTokens()) + return false; + while (true) { + String s = tk.nextToken(); + Object obj = map.get(s); + if (tk.hasMoreTokens()) { + if (obj == null) { + obj = new HashMap(); + map.put(s, obj); + map = (HashMap)obj; + continue; + } + else if (obj instanceof HashMap) + map = (HashMap)obj; + else + return false; + } + else { + if (obj == null || !(obj instanceof HashMap)) { + map.put(s, value); + return true; + } + else + return false; + } + } + } + + void iterateFields(HashMap values, HashMap map, String name) { + for (Iterator it = map.keySet().iterator(); it.hasNext();) { + String s = (String)it.next(); + Object obj = map.get(s); + if (obj instanceof HashMap) + iterateFields(values, (HashMap)obj, name + "." + s); + else + values.put((name + "." + s).substring(1), obj); + } + } + + /** Removes the field value. + * @param field the field name + * @return true if the field was found and removed, + * false otherwise + */ + public boolean removeField(String field) { + HashMap map = fields; + StringTokenizer tk = new StringTokenizer(field, "."); + if (!tk.hasMoreTokens()) + return false; + ArrayList hist = new ArrayList(); + while (true) { + String s = tk.nextToken(); + Object obj = map.get(s); + if (obj == null) + return false; + hist.add(map); + hist.add(s); + if (tk.hasMoreTokens()) { + if (obj instanceof HashMap) + map = (HashMap)obj; + else + return false; + } + else { + if (obj instanceof HashMap) + return false; + else + break; + } + } + for (int k = hist.size() - 2; k >= 0; k -= 2) { + map = (HashMap)hist.get(k); + String s = (String)hist.get(k + 1); + map.remove(s); + if (map.size() > 0) + break; + } + return true; + } + + /** Gets all the fields. The map is keyed by the fully qualified + * field name and the values are PdfObject. + * @return a map with all the fields + */ + public HashMap getFields() { + HashMap values = new HashMap(); + iterateFields(values, fields, ""); + return values; + } + + /** Gets the field value. + * @param field the field name + * @return the field value or null if not found + */ + public String getField(String field) { + HashMap map = fields; + StringTokenizer tk = new StringTokenizer(field, "."); + if (!tk.hasMoreTokens()) + return null; + while (true) { + String s = tk.nextToken(); + Object obj = map.get(s); + if (obj == null) + return null; + if (tk.hasMoreTokens()) { + if (obj instanceof HashMap) + map = (HashMap)obj; + else + return null; + } + else { + if (obj instanceof HashMap) + return null; + else { + if (((PdfObject)obj).isString()) + return ((PdfString)obj).toUnicodeString(); + else + return PdfName.decodeName(obj.toString()); + } + } + } + } + + /** Sets the field value as a name. + * @param field the fully qualified field name + * @param value the value + * @return true if the value was inserted, + * false if the name is incompatible with + * an existing field + */ + public boolean setFieldAsName(String field, String value) { + return setField(field, new PdfName(value)); + } + + /** Sets the field value as a string. + * @param field the fully qualified field name + * @param value the value + * @return true if the value was inserted, + * false if the name is incompatible with + * an existing field + */ + public boolean setFieldAsString(String field, String value) { + return setField(field, new PdfString(value, PdfObject.TEXT_UNICODE)); + } + + /** Sets all the fields from this FdfReader + * @param fdf the FdfReader + */ + public void setFields(FdfReader fdf) { + HashMap map = fdf.getFields(); + for (Iterator it = map.keySet().iterator(); it.hasNext();) { + String key = (String)it.next(); + PdfDictionary dic = (PdfDictionary)map.get(key); + PdfObject v = dic.get(PdfName.V); + if (v != null) { + setField(key, v); + } + } + } + + /** Sets all the fields from this PdfReader + * @param pdf the PdfReader + */ + public void setFields(PdfReader pdf) { + setFields(pdf.getAcroFields()); + } + + /** Sets all the fields from this AcroFields + * @param af the AcroFields + */ + public void setFields(AcroFields af) { + for (Iterator it = af.getFields().entrySet().iterator(); it.hasNext();) { + Map.Entry entry = (Map.Entry)it.next(); + String fn = (String)entry.getKey(); + AcroFields.Item item = (AcroFields.Item)entry.getValue(); + PdfDictionary dic = (PdfDictionary)item.merged.get(0); + PdfObject v = PdfReader.getPdfObjectRelease(dic.get(PdfName.V)); + if (v == null) + continue; + PdfObject ft = PdfReader.getPdfObjectRelease(dic.get(PdfName.FT)); + if (ft == null || PdfName.SIG.equals(ft)) + continue; + setField(fn, v); + } + } + + /** Gets the PDF file name associated with the FDF. + * @return the PDF file name associated with the FDF + */ + public String getFile() { + return this.file; + } + + /** Sets the PDF file name associated with the FDF. + * @param file the PDF file name associated with the FDF + * + */ + public void setFile(String file) { + this.file = file; + } + + static class Wrt extends PdfWriter { + private FdfWriter fdf; + + Wrt(OutputStream os, FdfWriter fdf) throws DocumentException, IOException { + super(new PdfDocument(), os); + this.fdf = fdf; + this.os.write(HEADER_FDF); + body = new PdfBody(this); + } + + void writeTo() throws DocumentException, IOException { + PdfDictionary dic = new PdfDictionary(); + dic.put(PdfName.FIELDS, calculate(fdf.fields)); + if (fdf.file != null) + dic.put(PdfName.F, new PdfString(fdf.file, PdfObject.TEXT_UNICODE)); + PdfDictionary fd = new PdfDictionary(); + fd.put(PdfName.FDF, dic); + PdfIndirectReference ref = addToBody(fd).getIndirectReference(); + os.write(getISOBytes("trailer\n")); + PdfDictionary trailer = new PdfDictionary(); + trailer.put(PdfName.ROOT, ref); + trailer.toPdf(null, os); + os.write(getISOBytes("\n%%EOF\n")); + os.close(); + } + + + PdfArray calculate(HashMap map) throws IOException { + PdfArray ar = new PdfArray(); + for (Iterator it = map.keySet().iterator(); it.hasNext();) { + String key = (String)it.next(); + Object v = map.get(key); + PdfDictionary dic = new PdfDictionary(); + dic.put(PdfName.T, new PdfString(key, PdfObject.TEXT_UNICODE)); + if (v instanceof HashMap) { + dic.put(PdfName.KIDS, calculate((HashMap)v)); + } + else { + dic.put(PdfName.V, (PdfObject)v); + } + ar.add(dic); + } + return ar; + } + } +} -- cgit v1.2.3