001/* 002 * $Id: EnumerateTTC.java 4784 2011-03-15 08:33:00Z blowagie $ 003 * 004 * This file is part of the iText (R) project. 005 * Copyright (c) 1998-2011 1T3XT BVBA 006 * Authors: Bruno Lowagie, Paulo Soares, et al. 007 * 008 * This program is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Affero General Public License version 3 010 * as published by the Free Software Foundation with the addition of the 011 * following permission added to Section 15 as permitted in Section 7(a): 012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 014 * 015 * This program is distributed in the hope that it will be useful, but 016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 017 * or FITNESS FOR A PARTICULAR PURPOSE. 018 * See the GNU Affero General Public License for more details. 019 * You should have received a copy of the GNU Affero General Public License 020 * along with this program; if not, see http://www.gnu.org/licenses or write to 021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 022 * Boston, MA, 02110-1301 USA, or download the license from the following URL: 023 * http://itextpdf.com/terms-of-use/ 024 * 025 * The interactive user interfaces in modified source and object code versions 026 * of this program must display Appropriate Legal Notices, as required under 027 * Section 5 of the GNU Affero General Public License. 028 * 029 * In accordance with Section 7(b) of the GNU Affero General Public License, 030 * a covered work must retain the producer line in every PDF that is created 031 * or manipulated using iText. 032 * 033 * You can be released from the requirements of the license by purchasing 034 * a commercial license. Buying such a license is mandatory as soon as you 035 * develop commercial activities involving the iText software without 036 * disclosing the source code of your own applications. 037 * These activities include: offering paid services to customers as an ASP, 038 * serving PDFs on the fly in a web application, shipping iText with a closed 039 * source product. 040 * 041 * For more information, please contact iText Software Corp. at this 042 * address: sales@itextpdf.com 043 */ 044package com.itextpdf.text.pdf; 045 046import java.io.IOException; 047import java.util.HashMap; 048 049import com.itextpdf.text.DocumentException; 050import com.itextpdf.text.error_messages.MessageLocalization; 051/** Enumerates all the fonts inside a True Type Collection. 052 * 053 * @author Paulo Soares 054 */ 055class EnumerateTTC extends TrueTypeFont{ 056 057 protected String[] names; 058 059 EnumerateTTC(String ttcFile) throws DocumentException, IOException { 060 fileName = ttcFile; 061 rf = new RandomAccessFileOrArray(ttcFile); 062 findNames(); 063 } 064 065 EnumerateTTC(byte ttcArray[]) throws DocumentException, IOException { 066 fileName = "Byte array TTC"; 067 rf = new RandomAccessFileOrArray(ttcArray); 068 findNames(); 069 } 070 071 void findNames() throws DocumentException, IOException { 072 tables = new HashMap<String, int[]>(); 073 074 try { 075 String mainTag = readStandardString(4); 076 if (!mainTag.equals("ttcf")) 077 throw new DocumentException(MessageLocalization.getComposedMessage("1.is.not.a.valid.ttc.file", fileName)); 078 rf.skipBytes(4); 079 int dirCount = rf.readInt(); 080 names = new String[dirCount]; 081 int dirPos = rf.getFilePointer(); 082 for (int dirIdx = 0; dirIdx < dirCount; ++dirIdx) { 083 tables.clear(); 084 rf.seek(dirPos); 085 rf.skipBytes(dirIdx * 4); 086 directoryOffset = rf.readInt(); 087 rf.seek(directoryOffset); 088 if (rf.readInt() != 0x00010000) 089 throw new DocumentException(MessageLocalization.getComposedMessage("1.is.not.a.valid.ttf.file", fileName)); 090 int num_tables = rf.readUnsignedShort(); 091 rf.skipBytes(6); 092 for (int k = 0; k < num_tables; ++k) { 093 String tag = readStandardString(4); 094 rf.skipBytes(4); 095 int table_location[] = new int[2]; 096 table_location[0] = rf.readInt(); 097 table_location[1] = rf.readInt(); 098 tables.put(tag, table_location); 099 } 100 names[dirIdx] = getBaseFont(); 101 } 102 } 103 finally { 104 if (rf != null) 105 rf.close(); 106 } 107 } 108 109 String[] getNames() { 110 return names; 111 } 112 113}