001/*
002 * $Id: GlyphList.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.ByteArrayOutputStream;
047import java.io.InputStream;
048import java.util.HashMap;
049import java.util.StringTokenizer;
050
051import com.itextpdf.text.pdf.fonts.FontsResourceAnchor;
052
053public class GlyphList {
054    private static HashMap<Integer, String> unicode2names = new HashMap<Integer, String>();
055    private static HashMap<String, int[]> names2unicode = new HashMap<String, int[]>();
056
057    static {
058        InputStream is = null;
059        try {
060            is = BaseFont.getResourceStream(BaseFont.RESOURCE_PATH + "glyphlist.txt", new FontsResourceAnchor().getClass().getClassLoader());
061            if (is == null) {
062                String msg = "glyphlist.txt not found as resource. (It must exist as resource in the package com.itextpdf.text.pdf.fonts)";
063                throw new Exception(msg);
064            }
065            byte buf[] = new byte[1024];
066            ByteArrayOutputStream out = new ByteArrayOutputStream();
067            while (true) {
068                int size = is.read(buf);
069                if (size < 0)
070                    break;
071                out.write(buf, 0, size);
072            }
073            is.close();
074            is = null;
075            String s = PdfEncodings.convertToString(out.toByteArray(), null);
076            StringTokenizer tk = new StringTokenizer(s, "\r\n");
077            while (tk.hasMoreTokens()) {
078                String line = tk.nextToken();
079                if (line.startsWith("#"))
080                    continue;
081                StringTokenizer t2 = new StringTokenizer(line, " ;\r\n\t\f");
082                String name = null;
083                String hex = null;
084                if (!t2.hasMoreTokens())
085                    continue;
086                name = t2.nextToken();
087                if (!t2.hasMoreTokens())
088                    continue;
089                hex = t2.nextToken();
090                Integer num = Integer.valueOf(hex, 16);
091                unicode2names.put(num, name);
092                names2unicode.put(name, new int[]{num.intValue()});
093            }
094        }
095        catch (Exception e) {
096            System.err.println("glyphlist.txt loading error: " + e.getMessage());
097        }
098        finally {
099            if (is != null) {
100                try {
101                    is.close();
102                }
103                catch (Exception e) {
104                    // empty on purpose
105                }
106            }
107        }
108    }
109
110    public static int[] nameToUnicode(String name) {
111        return names2unicode.get(name);
112    }
113
114    public static String unicodeToName(int num) {
115        return unicode2names.get(Integer.valueOf(num));
116    }
117}