com.itextpdf.text.pdf.EnumerateTTC Maven / Gradle / Ivy
/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2020 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
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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();
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;
}
}