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Version modificada de iText 2.1.7 con el paquete cambiado, adaptaciones menores para firma y dependencias actualizadas.
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/*
 * $Id: EnumerateTTC.java 3373 2008-05-12 16:21:24Z xlv $
 *
 * Copyright 2001, 2002 by 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.aowagie.text.pdf;

import java.io.IOException;
import java.util.LinkedHashMap;

import com.aowagie.text.DocumentException;
/** Enumerates all the fonts inside a True Type Collection.
 *
 * @author  Paulo Soares ([email protected])
 */
class EnumerateTTC extends TrueTypeFont{

    private String[] names;

    EnumerateTTC(final String ttcFile) throws DocumentException, IOException {
        this.fileName = ttcFile;
        this.rf = new RandomAccessFileOrArray(ttcFile);
        findNames();
    }



    private void findNames() throws DocumentException, IOException {
        this.tables = new LinkedHashMap();

        try {
            final String mainTag = readStandardString(4);
            if (!mainTag.equals("ttcf")) {
				throw new DocumentException(this.fileName + " is not a valid TTC file.");
			}
            this.rf.skipBytes(4);
            final int dirCount = this.rf.readInt();
            this.names = new String[dirCount];
            final int dirPos = this.rf.getFilePointer();
            for (int dirIdx = 0; dirIdx < dirCount; ++dirIdx) {
                this.tables.clear();
                this.rf.seek(dirPos);
                this.rf.skipBytes(dirIdx * 4);
                this.directoryOffset = this.rf.readInt();
                this.rf.seek(this.directoryOffset);
                if (this.rf.readInt() != 0x00010000) {
					throw new DocumentException(this.fileName + " is not a valid TTF file.");
				}
                final int num_tables = this.rf.readUnsignedShort();
                this.rf.skipBytes(6);
                for (int k = 0; k < num_tables; ++k) {
                    final String tag = readStandardString(4);
                    this.rf.skipBytes(4);
                    final int table_location[] = new int[2];
                    table_location[0] = this.rf.readInt();
                    table_location[1] = this.rf.readInt();
                    this.tables.put(tag, table_location);
                }
                this.names[dirIdx] = getBaseFont();
            }
        }
        finally {
            if (this.rf != null) {
				this.rf.close();
			}
        }
    }

    String[] getNames() {
        return this.names;
    }

}