/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2017 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.text.pdf;
import java.io.IOException;
import java.util.HashMap;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.error_messages.MessageLocalization;
/** Enumerates all the fonts inside a True Type Collection.
*
* @author Paulo Soares
*/
class EnumerateTTC extends TrueTypeFont{
protected String[] names;
EnumerateTTC(String ttcFile) throws DocumentException, IOException {
fileName = ttcFile;
rf = new RandomAccessFileOrArray(ttcFile);
findNames();
}
EnumerateTTC(byte ttcArray[]) throws DocumentException, IOException {
fileName = "Byte array TTC";
rf = new RandomAccessFileOrArray(ttcArray);
findNames();
}
void findNames() throws DocumentException, IOException {
tables = new HashMap<String, int[]>();
try {
String mainTag = readStandardString(4);
if (!mainTag.equals("ttcf"))
throw new DocumentException(MessageLocalization.getComposedMessage("1.is.not.a.valid.ttc.file", fileName));
rf.skipBytes(4);
int dirCount = rf.readInt();
names = new String[dirCount];
int dirPos = (int)rf.getFilePointer();
for (int dirIdx = 0; dirIdx < dirCount; ++dirIdx) {
tables.clear();
rf.seek(dirPos);
rf.skipBytes(dirIdx * 4);
directoryOffset = rf.readInt();
rf.seek(directoryOffset);
if (rf.readInt() != 0x00010000)
throw new DocumentException(MessageLocalization.getComposedMessage("1.is.not.a.valid.ttf.file", fileName));
int num_tables = rf.readUnsignedShort();
rf.skipBytes(6);
for (int k = 0; k < num_tables; ++k) {
String tag = readStandardString(4);
rf.skipBytes(4);
int table_location[] = new int[2];
table_location[0] = rf.readInt();
table_location[1] = rf.readInt();
tables.put(tag, table_location);
}
names[dirIdx] = getBaseFont();
}
}
finally {
if (rf != null)
rf.close();
}
}
String[] getNames() {
return names;
}
}