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Java > Open Source Codes > com > lowagie > text > pdf > EnumerateTTC


1 /*
2  * $Id: EnumerateTTC.java 2366 2006-09-14 23:10:58Z xlv $
3  * $Name$
4  *
5  * Copyright 2001, 2002 by Paulo Soares.
6  *
7  * The contents of this file are subject to the Mozilla Public License Version 1.1
8  * (the "License"); you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the License.
14  *
15  * The Original Code is 'iText, a free JAVA-PDF library'.
16  *
17  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
18  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
19  * All Rights Reserved.
20  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
21  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
22  *
23  * Contributor(s): all the names of the contributors are added in the source code
24  * where applicable.
25  *
26  * Alternatively, the contents of this file may be used under the terms of the
27  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
28  * provisions of LGPL are applicable instead of those above. If you wish to
29  * allow use of your version of this file only under the terms of the LGPL
30  * License and not to allow others to use your version of this file under
31  * the MPL, indicate your decision by deleting the provisions above and
32  * replace them with the notice and other provisions required by the LGPL.
33  * If you do not delete the provisions above, a recipient may use your version
34  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Library General Public License as published by the Free Software Foundation;
39  * either version 2 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
43  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
44  * details.
45  *
46  * If you didn't download this code from the following link, you should check if
47  * you aren't using an obsolete version:
48  * http://www.lowagie.com/iText/
49  */

50
51 package com.lowagie.text.pdf;
52
53 import java.io.IOException JavaDoc;
54 import java.util.HashMap JavaDoc;
55
56 import com.lowagie.text.DocumentException;
57 /** Enumerates all the fonts inside a True Type Collection.
58  *
59  * @author Paulo Soares (psoares@consiste.pt)
60  */

61 class EnumerateTTC extends TrueTypeFont{
62
63     protected String JavaDoc[] names;
64
65     EnumerateTTC(String JavaDoc ttcFile) throws DocumentException, IOException JavaDoc {
66         fileName = ttcFile;
67         rf = new RandomAccessFileOrArray(ttcFile);
68         findNames();
69     }
70
71     EnumerateTTC(byte ttcArray[]) throws DocumentException, IOException JavaDoc {
72         fileName = "Byte array TTC";
73         rf = new RandomAccessFileOrArray(ttcArray);
74         findNames();
75     }
76     
77     void findNames() throws DocumentException, IOException JavaDoc {
78         tables = new HashMap JavaDoc();
79         
80         try {
81             String JavaDoc mainTag = readStandardString(4);
82             if (!mainTag.equals("ttcf"))
83                 throw new DocumentException(fileName + " is not a valid TTC file.");
84             rf.skipBytes(4);
85             int dirCount = rf.readInt();
86             names = new String JavaDoc[dirCount];
87             int dirPos = rf.getFilePointer();
88             for (int dirIdx = 0; dirIdx < dirCount; ++dirIdx) {
89                 tables.clear();
90                 rf.seek(dirPos);
91                 rf.skipBytes(dirIdx * 4);
92                 directoryOffset = rf.readInt();
93                 rf.seek(directoryOffset);
94                 if (rf.readInt() != 0x00010000)
95                     throw new DocumentException(fileName + " is not a valid TTF file.");
96                 int num_tables = rf.readUnsignedShort();
97                 rf.skipBytes(6);
98                 for (int k = 0; k < num_tables; ++k) {
99                     String JavaDoc tag = readStandardString(4);
100                     rf.skipBytes(4);
101                     int table_location[] = new int[2];
102                     table_location[0] = rf.readInt();
103                     table_location[1] = rf.readInt();
104                     tables.put(tag, table_location);
105                 }
106                 names[dirIdx] = getBaseFont();
107             }
108         }
109         finally {
110             if (rf != null)
111                 rf.close();
112         }
113     }
114     
115     String JavaDoc[] getNames() {
116         return names;
117     }
118
119 }
120
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