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Java > Open Source Codes > com > lowagie > text > rtf > direct > RtfFontTableParser


1 /**
2  * $Id: RtfFontTableParser.java 2382 2006-09-15 23:37:38Z xlv $
3  * $Name$
4  *
5  * Copyright 2006 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) 1999-2006 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) 2000-2006 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 package com.lowagie.text.rtf.direct;
51
52 /**
53  * The RtfFontTableParser handles the events generated by the
54  * RtfTokeniser while the RTF font table is parsed.
55  *
56  * @version $Revision: 2382 $
57  * @author Mark Hall (mhall@edu.uni-klu.ac.at)
58  */
59 public class RtfFontTableParser {
60     /**
61      * The RtfImportHeader to add font mappings to.
62      */
63     private RtfImportHeader importHeader = null;
64     /**
65      * The number of the font being parsed.
66      */
67     private String JavaDoc fontNr = "";
68     /**
69      * The name of the font being parsed.
70      */
71     private String JavaDoc fontName = "";
72     
73     /**
74      * Constructs a new RtfFontTableParser.
75      *
76      * @param importHeader The RtfImportHeader to add font mappings to.
77      */
78     public RtfFontTableParser(RtfImportHeader importHeader) {
79         this.importHeader = importHeader;
80         this.fontNr = "";
81         this.fontName = "";
82     }
83
84     /**
85      * Handles closing of a group during parsing. If the group nesting level
86      * is 3 then an individual font definition was closed and thus if the
87      * font number and font name are set, they can be added to the mappings.
88      *
89      * @param groupLevel The current group nesting level.
90      */
91     public void handleCloseGroup(int groupLevel) {
92         if(groupLevel == 3 && !this.fontNr.equals("") && !this.fontName.equals("")) {
93             this.importHeader.importFont(this.fontNr, this.fontName);
94             this.fontNr = "";
95             this.fontName = "";
96         }
97     }
98
99     /**
100      * Handles the font number control word. Only relevant if the
101      * group nesting level is 3.
102      *
103      * @param ctrlWord The control word to handle.
104      * @param groupLevel The current group nesting level.
105      */
106     public void handleCtrlWord(String JavaDoc ctrlWord, int groupLevel) {
107         if(RtfColorTableParser.stringMatches(ctrlWord, "\\f") && groupLevel == 3) {
108             this.fontNr = ctrlWord.substring(2);
109         }
110     }
111     
112     /**
113      * Handles the font name. The font name must be ended by a
114      * semicolon and must be at group nesting level 3.
115      *
116      * @param text The font name to handle.
117      * @param groupLevel The current group nesting level.
118      */
119     public void handleText(String JavaDoc text, int groupLevel) {
120         if(text.indexOf(';') >= 0 && groupLevel == 3) {
121             this.fontName = text.substring(0, text.indexOf(';'));
122         }
123     }
124 }
125
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