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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/font/WoffConverter.java
/* This file is part of the iText (R) project. Copyright (c) 1998-2018 iText Group NV Authors: iText Software. 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.font; import java.io.ByteArrayInputStream; import java.util.ArrayList; import java.util.List; import java.util.zip.InflaterInputStream; class WoffConverter { private static final long woffSignature = 0x774F4646L; public static boolean isWoffFont(byte[] woffBytes) { return bytesToUInt(woffBytes, 0) == woffSignature; } public static byte[] convert(byte[] woffBytes) throws java.io.IOException { int srcPos = 0; int destPos = 0; // signature if (bytesToUInt(woffBytes, srcPos) != woffSignature) { throw new IllegalArgumentException(); } srcPos += 4; byte[] flavor = new byte[4]; System.arraycopy(woffBytes, srcPos, flavor, 0, 4); srcPos += 4; // length if (bytesToUInt(woffBytes, srcPos) != woffBytes.length) { throw new IllegalArgumentException(); } srcPos += 4; byte[] numTables = new byte[2]; System.arraycopy(woffBytes, srcPos, numTables, 0, 2); srcPos += 2; // reserved if (bytesToUShort(woffBytes, srcPos) != 0) { throw new IllegalArgumentException(); } srcPos += 2; long totalSfntSize = bytesToUInt(woffBytes, srcPos); srcPos += 4; srcPos += 2; // majorVersion srcPos += 2; // minorVersion srcPos += 4; // metaOffset srcPos += 4; // metaLength srcPos += 4; // metaOrigLength srcPos += 4; // privOffset srcPos += 4; // privLength byte[] otfBytes = new byte[(int) totalSfntSize]; // assuming font won't be larger than 2GB System.arraycopy(flavor, 0, otfBytes, destPos, 4); destPos += 4; System.arraycopy(numTables, 0, otfBytes, destPos, 2); destPos += 2; int entrySelector = -1; int searchRange = -1; int numTablesVal = bytesToUShort(numTables, 0); for (int i = 0; i < 17; ++i) { int powOfTwo = (int) Math.pow(2, i); if (powOfTwo > numTablesVal) { entrySelector = i; searchRange = powOfTwo * 16; break; } } if (entrySelector < 0) { throw new IllegalArgumentException(); } otfBytes[destPos] = (byte) (searchRange >> 8); otfBytes[destPos + 1] = (byte) (searchRange); destPos += 2; otfBytes[destPos] = (byte) (entrySelector >> 8); otfBytes[destPos + 1] = (byte) (entrySelector); destPos += 2; int rangeShift = numTablesVal * 16 - searchRange; otfBytes[destPos] = (byte) (rangeShift >> 8); otfBytes[destPos + 1] = (byte) (rangeShift); destPos += 2; int outTableOffset = destPos; List<TableDirectory> tdList = new ArrayList<>(numTablesVal); for (int i = 0; i < numTablesVal; ++i) { TableDirectory td = new TableDirectory(); System.arraycopy(woffBytes, srcPos, td.tag, 0, 4); srcPos += 4; td.offset = bytesToUInt(woffBytes, srcPos); srcPos += 4; if (td.offset % 4 != 0) { throw new IllegalArgumentException(); } td.compLength = bytesToUInt(woffBytes, srcPos); srcPos += 4; System.arraycopy(woffBytes, srcPos, td.origLength, 0, 4); td.origLengthVal = bytesToUInt(td.origLength, 0); srcPos += 4; System.arraycopy(woffBytes, srcPos, td.origChecksum, 0, 4); srcPos += 4; tdList.add(td); outTableOffset += 4*4; } for (TableDirectory td : tdList) { System.arraycopy(td.tag, 0, otfBytes, destPos, 4); destPos += 4; System.arraycopy(td.origChecksum, 0, otfBytes, destPos, 4); destPos += 4; otfBytes[destPos] = (byte) (outTableOffset >> 24); otfBytes[destPos + 1] = (byte) (outTableOffset >> 16); otfBytes[destPos + 2] = (byte) (outTableOffset >> 8); otfBytes[destPos + 3] = (byte) (outTableOffset); destPos += 4; System.arraycopy(td.origLength, 0, otfBytes, destPos, 4); destPos += 4; td.outOffset = outTableOffset; outTableOffset += (int)td.origLengthVal; if (outTableOffset % 4 != 0) { outTableOffset += 4 - outTableOffset % 4; } } if (outTableOffset != totalSfntSize) { throw new IllegalArgumentException(); } for (TableDirectory td : tdList) { byte[] compressedData = new byte[(int) td.compLength]; byte[] uncompressedData; System.arraycopy(woffBytes, (int) td.offset, compressedData, 0, (int) td.compLength); int expectedUncompressedLen = (int) td.origLengthVal; if (td.compLength > td.origLengthVal) { throw new IllegalArgumentException(); } if (td.compLength != td.origLengthVal) { ByteArrayInputStream stream = new ByteArrayInputStream(compressedData); InflaterInputStream zip = new InflaterInputStream(stream); uncompressedData = new byte[expectedUncompressedLen]; int bytesRead = 0; while (expectedUncompressedLen - bytesRead > 0) { int readRes = zip.read(uncompressedData, bytesRead, expectedUncompressedLen - bytesRead); if (readRes < 0) { throw new IllegalArgumentException(); } bytesRead += readRes; } if (zip.read() >= 0) { throw new IllegalArgumentException(); } } else { uncompressedData = compressedData; } System.arraycopy(uncompressedData, 0, otfBytes, td.outOffset, expectedUncompressedLen); } return otfBytes; } private static long bytesToUInt(byte[] b, int start) { return (b[start] & 0xFFL) << 24 | (b[start + 1] & 0xFFL) << 16 | (b[start + 2] & 0xFFL) << 8 | (b[start + 3] & 0xFFL); } private static int bytesToUShort(byte[] b, int start) { return (b[start] & 0xFF) << 8 | (b[start + 1] & 0xFF); } private static class TableDirectory { byte[] tag = new byte[4]; long offset; long compLength; byte[] origLength = new byte[4]; long origLengthVal; byte[] origChecksum = new byte[4]; int outOffset; } }
⏎ com/itextpdf/io/font/WoffConverter.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, 91162👍, 5💬
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