TTFNameTable.java

// Copyright 2001, FreeHEP.
package org.freehep.graphicsio.font.truetype;

import java.io.IOException;

import org.geogebra.common.util.debug.Log;

/**
 * NAME Table.
 * 
 * @author Mark Donszelmann
 * @version $Id: TTFNameTable.java,v 1.5 2009-08-17 21:44:45 murkle Exp $
 */
public class TTFNameTable extends TTFTable {

	private int format;

	private int numberOfNameRecords;

	private int stringStorage;

	private String[][] name = new String[4][19]; // 18 NameIDs according to
													// OpenType

	@Override
	public String getTag() {
		return "name";
	}

	// FIXME: fixed decoding for lucida files
	// PID = 0, -> UnicodeBig (Apple-Unicode-English)
	// PID = 1, EID = 0, LID = 0; -> Default Encoding (Mac-Roman-English)
	// PID = 3, EID = 1, LID = 1033; -> UnicodeBig (Win-UGL-ENU)
	// LID english, other languages ignored
	@Override
	public void readTable() throws IOException {

		format = ttf.readUShort();
		numberOfNameRecords = ttf.readUShort();
		stringStorage = ttf.readUShort();

		for (int i = 0; i < numberOfNameRecords; i++) {
			int pid = ttf.readUShort();
			int eid = ttf.readUShort();
			int lid = ttf.readUShort();
			int nid = ttf.readUShort();
			int stringLen = ttf.readUShort();
			int stringOffset = ttf.readUShort();
			// long pos = ttf.getFilePointer();
			ttf.pushPos();
			ttf.seek(stringStorage + stringOffset);
			byte[] b = new byte[stringLen];
			ttf.readFully(b);
			if (pid == 0) {
				// Apple Unicode
				name[pid][nid] = new String(b, "UnicodeBig");
			} else if ((pid == 1) && (eid == 0)) {
				if (lid == 0) {
					// Mac-Roman-English
					name[pid][nid] = new String(b, "ISO8859-1");
				}
				// ignore other languages
			} else if ((pid == 3) && (eid == 1)) {
				// Win-UGL
				if (lid == 0x0409) {
					// ENU
					name[pid][nid] = new String(b, "UnicodeBig");
				}
				// ignore other languages
			} else {
				Log.debug("Unimplemented PID, EID, LID scheme: " + pid + ", "
						+ eid + ", " + lid);
				Log.debug("NID = " + nid);
				name[pid][nid] = new String(b, "Default");
			}
			ttf.popPos();
			// ttf.seek(pos);
		}
	}

	@Override
	public String toString() {
		StringBuffer s = new StringBuffer();
		s.append(super.toString() + "\n");
		s.append("  format: " + format);
		for (int i = 0; i < name.length; i++) {
			for (int j = 0; j < name[i].length; j++) {
				if (name[i][j] != null) {
					s.append("\n  name[" + i + "][" + j + "]: " + name[i][j]);
				}
			}
		}
		return s.toString();
	}
}