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iText io.jar Source Code
io.jar is a component in iText Java library to provide input/output functionalities. iText Java library allows you to generate and manage PDF documents.
The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.
You can compile it to generate your JAR file, using io.pom as the build configuration file.
The source code of io-7.1.4.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/io/codec/BitFile.java
/* This file is part of the iText (R) project. Copyright (c) 1998-2018 iText Group NV Authors: Bruno Lowagie, Paulo Soares, et al. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License version 3 as published by the Free Software Foundation with the addition of the following permission added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA, 02110-1301 USA, or download the license from the following URL: http://itextpdf.com/terms-of-use/ The interactive user interfaces in modified source and object code versions of this program must display Appropriate Legal Notices, as required under Section 5 of the GNU Affero General Public License. In accordance with Section 7(b) of the GNU Affero General Public License, a covered work must retain the producer line in every PDF that is created or manipulated using iText. You can be released from the requirements of the license by purchasing a commercial license. Buying such a license is mandatory as soon as you develop commercial activities involving the iText software without disclosing the source code of your own applications. These activities include: offering paid services to customers as an ASP, serving PDFs on the fly in a web application, shipping iText with a closed source product. For more information, please contact iText Software Corp. at this address: sales@itextpdf.com */ package com.itextpdf.io.codec; import java.io.IOException; import java.io.OutputStream; /** * Came from GIFEncoder initially. * Modified - to allow for output compressed data without the block counts * which breakup the compressed data stream for GIF. */ class BitFile { OutputStream output; byte buffer[]; int index; // bits left at current index that are avail. int bitsLeft; /** * note this also indicates gif format BITFile. **/ boolean blocks = false; /** * @param output destination for output data * @param blocks GIF LZW requires block counts for output data **/ public BitFile(OutputStream output, boolean blocks) { this.output = output; this.blocks = blocks; buffer = new byte[256]; index = 0; bitsLeft = 8; } public void flush() throws IOException { int numBytes = index + (bitsLeft == 8 ? 0 : 1); if (numBytes > 0) { if (blocks) output.write(numBytes); output.write(buffer, 0, numBytes); buffer[0] = 0; index = 0; bitsLeft = 8; } } public void writeBits(int bits, int numbits) throws IOException { int bitsWritten = 0; int numBytes = 255; // gif block count do { // This handles the GIF block count stuff if ((index == 254 && bitsLeft == 0) || index > 254) { if (blocks) output.write(numBytes); output.write(buffer, 0, numBytes); buffer[0] = 0; index = 0; bitsLeft = 8; } if (numbits <= bitsLeft) // bits contents fit in current index byte { if (blocks) // GIF { buffer[index] |= (byte) ((bits & ((1 << numbits) - 1)) << (8 - bitsLeft)); bitsWritten += numbits; bitsLeft -= numbits; numbits = 0; } else { buffer[index] |= (byte) ((bits & ((1 << numbits) - 1)) << (bitsLeft - numbits)); bitsWritten += numbits; bitsLeft -= numbits; numbits = 0; } } else // bits overflow from current byte to next. { if (blocks) // GIF { // if bits > space left in current byte then the lowest order bits // of code are taken and put in current byte and rest put in next. buffer[index] |= (byte) ((bits & ((1 << bitsLeft) - 1)) << (8 - bitsLeft)); bitsWritten += bitsLeft; bits >>= bitsLeft; numbits -= bitsLeft; buffer[++index] = 0; bitsLeft = 8; } else { // if bits > space left in current byte then the highest order bits // of code are taken and put in current byte and rest put in next. // at highest order bit location !! int topbits = (bits >>> (numbits - bitsLeft)) & ((1 << bitsLeft) - 1); buffer[index] |= (byte) topbits; numbits -= bitsLeft; // ok this many bits gone off the top bitsWritten += bitsLeft; buffer[++index] = 0; // next index bitsLeft = 8; } } } while (numbits != 0); } }
⏎ com/itextpdf/io/codec/BitFile.java
Or download all of them as a single archive file:
File name: io-7.1.4-sources.jar File size: 608762 bytes Release date: 2018-10-09 Download
⇒ iText layout.jar Source Code
⇐ iText kernel.jar Source Code
2018-04-09, 90335👍, 5💬
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