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 --- .../java/com/lowagie/text/pdf/PdfFunction.java | 142 +++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/PdfFunction.java (limited to 'src/main/java/com/lowagie/text/pdf/PdfFunction.java') diff --git a/src/main/java/com/lowagie/text/pdf/PdfFunction.java b/src/main/java/com/lowagie/text/pdf/PdfFunction.java new file mode 100644 index 0000000..1460ba8 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfFunction.java @@ -0,0 +1,142 @@ +/* + * Copyright 2002 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 com.lowagie.text.ExceptionConverter; +import java.io.IOException; +/** Implements PDF functions. + * + * @author Paulo Soares (psoares@consiste.pt) + */ +public class PdfFunction { + + protected PdfWriter writer; + + protected PdfIndirectReference reference; + + protected PdfDictionary dictionary; + + /** Creates new PdfFunction */ + protected PdfFunction(PdfWriter writer) { + this.writer = writer; + } + + PdfIndirectReference getReference() { + try { + if (reference == null) { + reference = writer.addToBody(dictionary).getIndirectReference(); + } + } + catch (IOException ioe) { + throw new ExceptionConverter(ioe); + } + return reference; + } + + public static PdfFunction type0(PdfWriter writer, float domain[], float range[], int size[], + int bitsPerSample, int order, float encode[], float decode[], byte stream[]) { + PdfFunction func = new PdfFunction(writer); + func.dictionary = new PdfStream(stream); + ((PdfStream)func.dictionary).flateCompress(); + func.dictionary.put(PdfName.FUNCTIONTYPE, new PdfNumber(0)); + func.dictionary.put(PdfName.DOMAIN, new PdfArray(domain)); + func.dictionary.put(PdfName.RANGE, new PdfArray(range)); + func.dictionary.put(PdfName.SIZE, new PdfArray(size)); + func.dictionary.put(PdfName.BITSPERSAMPLE, new PdfNumber(bitsPerSample)); + if (order != 1) + func.dictionary.put(PdfName.ORDER, new PdfNumber(order)); + if (encode != null) + func.dictionary.put(PdfName.ENCODE, new PdfArray(encode)); + if (decode != null) + func.dictionary.put(PdfName.DECODE, new PdfArray(decode)); + return func; + } + + public static PdfFunction type2(PdfWriter writer, float domain[], float range[], float c0[], float c1[], float n) { + PdfFunction func = new PdfFunction(writer); + func.dictionary = new PdfDictionary(); + func.dictionary.put(PdfName.FUNCTIONTYPE, new PdfNumber(2)); + func.dictionary.put(PdfName.DOMAIN, new PdfArray(domain)); + if (range != null) + func.dictionary.put(PdfName.RANGE, new PdfArray(range)); + if (c0 != null) + func.dictionary.put(PdfName.C0, new PdfArray(c0)); + if (c1 != null) + func.dictionary.put(PdfName.C1, new PdfArray(c1)); + func.dictionary.put(PdfName.N, new PdfNumber(n)); + return func; + } + + public static PdfFunction type3(PdfWriter writer, float domain[], float range[], PdfFunction functions[], float bounds[], float encode[]) { + PdfFunction func = new PdfFunction(writer); + func.dictionary = new PdfDictionary(); + func.dictionary.put(PdfName.FUNCTIONTYPE, new PdfNumber(3)); + func.dictionary.put(PdfName.DOMAIN, new PdfArray(domain)); + if (range != null) + func.dictionary.put(PdfName.RANGE, new PdfArray(range)); + PdfArray array = new PdfArray(); + for (int k = 0; k < functions.length; ++k) + array.add(functions[k].getReference()); + func.dictionary.put(PdfName.FUNCTIONS, array); + func.dictionary.put(PdfName.BOUNDS, new PdfArray(bounds)); + func.dictionary.put(PdfName.ENCODE, new PdfArray(encode)); + return func; + } + + public static PdfFunction type4(PdfWriter writer, float domain[], float range[], String postscript) { + byte b[] = new byte[postscript.length()]; + for (int k = 0; k < b.length; ++k) + b[k] = (byte)postscript.charAt(k); + PdfFunction func = new PdfFunction(writer); + func.dictionary = new PdfStream(b); + ((PdfStream)func.dictionary).flateCompress(); + func.dictionary.put(PdfName.FUNCTIONTYPE, new PdfNumber(4)); + func.dictionary.put(PdfName.DOMAIN, new PdfArray(domain)); + func.dictionary.put(PdfName.RANGE, new PdfArray(range)); + return func; + } +} -- cgit v1.2.3