From 13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2 Mon Sep 17 00:00:00 2001 From: tknall Date: Tue, 25 Nov 2008 12:04:30 +0000 Subject: Removing itext from source. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@302 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- src/main/java/com/lowagie/text/pdf/PdfStream.java | 313 ---------------------- 1 file changed, 313 deletions(-) delete mode 100644 src/main/java/com/lowagie/text/pdf/PdfStream.java (limited to 'src/main/java/com/lowagie/text/pdf/PdfStream.java') diff --git a/src/main/java/com/lowagie/text/pdf/PdfStream.java b/src/main/java/com/lowagie/text/pdf/PdfStream.java deleted file mode 100644 index 3d3b9dd..0000000 --- a/src/main/java/com/lowagie/text/pdf/PdfStream.java +++ /dev/null @@ -1,313 +0,0 @@ -/* - * $Id: PdfStream.java,v 1.57 2005/11/01 12:27:05 psoares33 Exp $ - * $Name: $ - * - * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie - * - * 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.ByteArrayOutputStream; -import java.io.OutputStream; -import java.io.InputStream; -import java.io.IOException; -import java.util.zip.DeflaterOutputStream; -import java.util.zip.Deflater; -import com.lowagie.text.Document; -import com.lowagie.text.DocWriter; -import com.lowagie.text.ExceptionConverter; - -/** - * PdfStream is the Pdf stream object. - *

- * A stream, like a string, is a sequence of characters. However, an application can - * read a small portion of a stream at a time, while a string must be read in its entirety. - * For this reason, objects with potentially large amounts of data, such as images and - * page descriptions, are represented as streams.
- * A stream consists of a dictionary that describes a sequence of characters, followed by - * the keyword stream, followed by zero or more lines of characters, followed by - * the keyword endstream.
- * All streams must be PdfIndirectObjects. The stream dictionary must be a direct - * object. The keyword stream that follows the stream dictionary should be followed by - * a carriage return and linefeed or just a linefeed.
- * Remark: In this version only the FLATEDECODE-filter is supported.
- * This object is described in the 'Portable Document Format Reference Manual version 1.3' - * section 4.8 (page 41-53).
- * - * @see PdfObject - * @see PdfDictionary - */ - -public class PdfStream extends PdfDictionary { - - // membervariables - -/** is the stream compressed? */ - protected boolean compressed = false; - - protected ByteArrayOutputStream streamBytes = null; - protected InputStream inputStream; - protected PdfIndirectReference ref; - protected int inputStreamLength = -1; - protected PdfWriter writer; - protected int rawLength; - - static final byte STARTSTREAM[] = DocWriter.getISOBytes("stream\n"); - static final byte ENDSTREAM[] = DocWriter.getISOBytes("\nendstream"); - static final int SIZESTREAM = STARTSTREAM.length + ENDSTREAM.length; - - // constructors - -/** - * Constructs a PdfStream-object. - * - * @param bytes content of the new PdfObject as an array of byte. - */ - - public PdfStream(byte[] bytes) { - super(); - type = STREAM; - this.bytes = bytes; - rawLength = bytes.length; - put(PdfName.LENGTH, new PdfNumber(bytes.length)); - } - - /** - * Creates an efficient stream. No temporary array is ever created. The InputStream - * is totally consumed but is not closed. The general usage is: - *

- * 

-     * InputStream in = ...;
-     * PdfStream stream = new PdfStream(in, writer);
-     * stream.flateCompress();
-     * writer.addToBody(stream);
-     * stream.writeLength();
-     * in.close();
-     *
- * @param inputStream the data to write to this stream - * @param writer the PdfWriter for this stream - */ - public PdfStream(InputStream inputStream, PdfWriter writer) { - super(); - type = STREAM; - this.inputStream = inputStream; - this.writer = writer; - ref = writer.getPdfIndirectReference(); - put(PdfName.LENGTH, ref); - } - -/** - * Constructs a PdfStream-object. - */ - - protected PdfStream() { - super(); - type = STREAM; - } - - /** - * Writes the stream length to the PdfWriter. - *

- * This method must be called and can only be called if the contructor {@link #PdfStream(InputStream,PdfWriter)} - * is used to create the stream. - * @throws IOException on error - * @see #PdfStream(InputStream,PdfWriter) - */ - public void writeLength() throws IOException { - if (inputStream == null) - throw new UnsupportedOperationException("writeLength() can only be called in a contructed PdfStream(InputStream,PdfWriter)."); - if (inputStreamLength == -1) - throw new IOException("writeLength() can only be called after output of the stream body."); - writer.addToBody(new PdfNumber(inputStreamLength), ref, false); - } - - /** - * Gets the raw length of the stream. - * @return the raw length of the stream - */ - public int getRawLength() { - return rawLength; - } - - /** - * Compresses the stream. - */ - - public void flateCompress() { - if (!Document.compress) - return; - // check if the flateCompress-method has already been - if (compressed) { - return; - } - if (inputStream != null) { - compressed = true; - return; - } - // check if a filter already exists - PdfObject filter = get(PdfName.FILTER); - if (filter != null) { - if (filter.isName() && ((PdfName) filter).compareTo(PdfName.FLATEDECODE) == 0) { - return; - } - else if (filter.isArray() && ((PdfArray) filter).contains(PdfName.FLATEDECODE)) { - return; - } - else { - throw new RuntimeException("Stream could not be compressed: filter is not a name or array."); - } - } - try { - // compress - ByteArrayOutputStream stream = new ByteArrayOutputStream(); - DeflaterOutputStream zip = new DeflaterOutputStream(stream); - if (streamBytes != null) - streamBytes.writeTo(zip); - else - zip.write(bytes); - zip.close(); - // update the object - streamBytes = stream; - bytes = null; - put(PdfName.LENGTH, new PdfNumber(streamBytes.size())); - if (filter == null) { - put(PdfName.FILTER, PdfName.FLATEDECODE); - } - else { - PdfArray filters = new PdfArray(filter); - filters.add(PdfName.FLATEDECODE); - put(PdfName.FILTER, filters); - } - compressed = true; - } - catch(IOException ioe) { - throw new ExceptionConverter(ioe); - } - } - -// public int getStreamLength(PdfWriter writer) { -// if (dicBytes == null) -// toPdf(writer); -// if (streamBytes != null) -// return streamBytes.size() + dicBytes.length + SIZESTREAM; -// else -// return bytes.length + dicBytes.length + SIZESTREAM; -// } - - protected void superToPdf(PdfWriter writer, OutputStream os) throws IOException { - super.toPdf(writer, os); - } - - /** - * @see com.lowagie.text.pdf.PdfDictionary#toPdf(com.lowagie.text.pdf.PdfWriter, java.io.OutputStream) - */ - public void toPdf(PdfWriter writer, OutputStream os) throws IOException { - if (inputStream != null && compressed) - put(PdfName.FILTER, PdfName.FLATEDECODE); - superToPdf(writer, os); - os.write(STARTSTREAM); - PdfEncryption crypto = null; - if (writer != null) - crypto = writer.getEncryption(); - if (crypto != null) - crypto.prepareKey(); - if (inputStream != null) { - rawLength = 0; - DeflaterOutputStream def = null; - OutputStreamCounter osc = new OutputStreamCounter(os); - OutputStream fout = osc; - if (crypto != null) - fout = new PdfEncryptionStream(fout, crypto); - if (compressed) - fout = def = new DeflaterOutputStream(fout, new Deflater(Deflater.BEST_COMPRESSION), 0x8000); - - byte buf[] = new byte[0x10000]; - while (true) { - int n = inputStream.read(buf); - if (n <= 0) - break; - fout.write(buf, 0, n); - rawLength += n; - } - if (def != null) - def.finish(); - inputStreamLength = osc.getCounter(); - } - else { - if (crypto == null) { - if (streamBytes != null) - streamBytes.writeTo(os); - else - os.write(bytes); - } - else { - byte b[]; - if (streamBytes != null) { - b = streamBytes.toByteArray(); - crypto.encryptRC4(b); - } - else { - b = new byte[bytes.length]; - crypto.encryptRC4(bytes, b); - } - os.write(b); - } - } - os.write(ENDSTREAM); - } - - /** - * Writes the data content to an OutputStream. - * @param os the destination to write to - * @throws IOException on error - */ - public void writeContent(OutputStream os) throws IOException { - if (streamBytes != null) - streamBytes.writeTo(os); - else if (bytes != null) - os.write(bytes); - } -} \ No newline at end of file -- cgit v1.2.3