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Java > Open Source Codes > com > lowagie > text > rtf > style > RtfFontList


1 /*
2  * $Id: RtfFontList.java 2776 2007-05-23 20:01:40Z hallm $
3  * $Name$
4  *
5  * Copyright 2001, 2002, 2003, 2004 by Mark Hall
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.rtf.style;
52
53 import java.io.ByteArrayOutputStream JavaDoc;
54 import java.io.IOException JavaDoc;
55 import java.io.OutputStream JavaDoc;
56 import java.util.ArrayList JavaDoc;
57
58 import com.lowagie.text.rtf.RtfElement;
59 import com.lowagie.text.rtf.RtfExtendedElement;
60 import com.lowagie.text.rtf.document.RtfDocument;
61
62 /**
63  * The RtfFontList stores the list of fonts used in the rtf document. It also
64  * has methods for writing this list to the document
65  *
66  * Version: $Id: RtfFontList.java 2776 2007-05-23 20:01:40Z hallm $
67  * @author Mark Hall (mhall@edu.uni-klu.ac.at)
68  * @author Thomas Bickel (tmb99@inode.at)
69  */
70 public class RtfFontList extends RtfElement implements RtfExtendedElement {
71     
72     /**
73      * Constant for the default font
74      */
75     private static final byte[] DEFAULT_FONT = "\\deff".getBytes();
76     /**
77      * Constant for the font table
78      */
79     private static final byte[] FONT_TABLE = "\\fonttbl".getBytes();
80     /**
81      * Constant for the font number
82      */
83     public static final byte[] FONT_NUMBER = "\\f".getBytes();
84     
85     /**
86      * The list of fonts
87      */
88     private ArrayList JavaDoc fontList = new ArrayList JavaDoc();
89
90     /**
91      * Creates a RtfFontList
92      *
93      * @param doc The RtfDocument this RtfFontList belongs to
94      */
95     public RtfFontList(RtfDocument doc) {
96         super(doc);
97         fontList.add(new RtfFont(document, 0));
98     }
99
100     /**
101      * unused
102      * @deprecated replaced by {@link #writeContent(OutputStream)}
103      */
104     public byte[] write()
105     {
106         return(new byte[0]);
107     }
108     /**
109      * unused
110      */
111     public void writeContent(OutputStream JavaDoc out) throws IOException JavaDoc
112     {
113     }
114     
115     /**
116      * Gets the index of the font in the list of fonts. If the font does not
117      * exist in the list, it is added.
118      *
119      * @param font The font to get the id for
120      * @return The index of the font
121      */
122     public int getFontNumber(RtfFont font) {
123         if(font instanceof RtfParagraphStyle) {
124             font = new RtfFont(this.document, font);
125         }
126         int fontIndex = -1;
127         for(int i = 0; i < fontList.size(); i++) {
128             if(fontList.get(i).equals(font)) {
129                 fontIndex = i;
130             }
131         }
132         if(fontIndex == -1) {
133             fontIndex = fontList.size();
134             fontList.add(font);
135         }
136         return fontIndex;
137     }
138
139     /**
140      * Writes the definition of the font list
141      *
142      * @return A byte array with the definition of the font list
143      * @deprecated replaced by {@link #writeDefinition(OutputStream)}
144      */
145     public byte[] writeDefinition() {
146         ByteArrayOutputStream JavaDoc result = new ByteArrayOutputStream JavaDoc();
147         try {
148             writeDefinition(result);
149         } catch(IOException JavaDoc ioe) {
150             ioe.printStackTrace();
151         }
152         return result.toByteArray();
153     }
154     
155     /**
156      * Writes the definition of the font list
157      */
158     public void writeDefinition(final OutputStream JavaDoc result) throws IOException JavaDoc
159     {
160         result.write(DEFAULT_FONT);
161         result.write(intToByteArray(0));
162         result.write(OPEN_GROUP);
163         result.write(FONT_TABLE);
164         for(int i = 0; i < fontList.size(); i++) {
165             result.write(OPEN_GROUP);
166             result.write(FONT_NUMBER);
167             result.write(intToByteArray(i));
168             RtfFont rf = (RtfFont) fontList.get(i);
169             //.result.write((rf).writeDefinition());
170 rf.writeDefinition(result);
171             result.write(COMMA_DELIMITER);
172             result.write(CLOSE_GROUP);
173         }
174         result.write(CLOSE_GROUP);
175         result.write((byte)'\n');
176     }
177     
178 }
179
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