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


1 /*
2  * $Id: RtfStylesheetList.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.HashMap JavaDoc;
57 import java.util.Iterator JavaDoc;
58
59 import com.lowagie.text.rtf.RtfBasicElement;
60 import com.lowagie.text.rtf.RtfElement;
61 import com.lowagie.text.rtf.RtfExtendedElement;
62 import com.lowagie.text.rtf.document.RtfDocument;
63
64 /**
65  * The RtfStylesheetList stores the RtfParagraphStyles that are used in the document.
66  *
67  * @version $Id: RtfStylesheetList.java 2776 2007-05-23 20:01:40Z hallm $
68  * @author Mark Hall (mhall@edu.uni-klu.ac.at)
69  * @author Thomas Bickel (tmb99@inode.at)
70  */

71 public class RtfStylesheetList extends RtfElement implements RtfExtendedElement {
72
73     /**
74      * The HashMap containing the RtfParagraphStyles.
75      */

76     private HashMap JavaDoc styleMap = null;
77     /**
78      * Whether the default settings have been loaded.
79      */

80     private boolean defaultsLoaded = false;
81     
82     /**
83      * Constructs a new RtfStylesheetList for the RtfDocument.
84      *
85      * @param doc The RtfDocument this RtfStylesheetList belongs to.
86      */

87     public RtfStylesheetList(RtfDocument doc) {
88         super(doc);
89         this.styleMap = new HashMap JavaDoc();
90     }
91
92     /**
93      * unused
94      * @deprecated replaced by {@link #writeContent(OutputStream)}
95      */

96     public byte[] write()
97     {
98         return(new byte[0]);
99     }
100     /**
101      * unused
102      */

103     public void writeContent(OutputStream JavaDoc out) throws IOException JavaDoc
104     {
105     }
106     
107     /**
108      * Register a RtfParagraphStyle with this RtfStylesheetList.
109      *
110      * @param rtfParagraphStyle The RtfParagraphStyle to add.
111      */

112     public void registerParagraphStyle(RtfParagraphStyle rtfParagraphStyle) {
113         RtfParagraphStyle tempStyle = new RtfParagraphStyle(this.document, rtfParagraphStyle);
114         tempStyle.setStyleNumber(this.styleMap.size());
115         tempStyle.handleInheritance();
116         this.styleMap.put(tempStyle.getStyleName(), tempStyle);
117     }
118
119     /**
120      * Registers all default styles. If styles with the given name have already been registered,
121      * then they are NOT overwritten.
122      */

123     private void registerDefaultStyles() {
124         defaultsLoaded = true;
125         if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_NORMAL.getStyleName())) {
126             registerParagraphStyle(RtfParagraphStyle.STYLE_NORMAL);
127         }
128         if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_1.getStyleName())) {
129             registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_1);
130         }
131         if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_2.getStyleName())) {
132             registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_2);
133         }
134         if(!this.styleMap.containsKey(RtfParagraphStyle.STYLE_HEADING_3.getStyleName())) {
135             registerParagraphStyle(RtfParagraphStyle.STYLE_HEADING_3);
136         }
137     }
138
139     /**
140      * Gets the RtfParagraphStyle with the given name. Makes sure that the defaults
141      * have been loaded.
142      *
143      * @param styleName The name of the RtfParagraphStyle to get.
144      * @return The RtfParagraphStyle with the given name or null.
145      */

146     public RtfParagraphStyle getRtfParagraphStyle(String JavaDoc styleName) {
147         if(!defaultsLoaded) {
148             registerDefaultStyles();
149         }
150         if(this.styleMap.containsKey(styleName)) {
151             return (RtfParagraphStyle) this.styleMap.get(styleName);
152         } else {
153             return null;
154         }
155     }
156     
157     /**
158      * Writes the definition of the stylesheet list.
159      * @deprecated replaced by {@link #writeDefinition(OutputStream)}
160      */

161     public byte[] writeDefinition() {
162         ByteArrayOutputStream JavaDoc result = new ByteArrayOutputStream JavaDoc();
163         try {
164             writeDefinition(result);
165         } catch(IOException JavaDoc ioe) {
166             ioe.printStackTrace();
167         }
168         return result.toByteArray();
169     }
170     
171     /**
172      * Writes the definition of the stylesheet list.
173      */

174     public void writeDefinition(final OutputStream JavaDoc result) throws IOException JavaDoc
175     {
176         result.write("{".getBytes());
177         result.write("\\stylesheet".getBytes());
178         result.write(RtfBasicElement.DELIMITER);
179         if(this.document.getDocumentSettings().isOutputDebugLineBreaks()) {
180             result.write("\n".getBytes());
181         }
182         Iterator JavaDoc it = this.styleMap.values().iterator();
183         while(it.hasNext()) {
184             RtfParagraphStyle rps = (RtfParagraphStyle)it.next();
185             //.result.write((rps).writeDefinition());
186
rps.writeDefinition(result);
187         }
188         result.write("}".getBytes());
189         if(this.document.getDocumentSettings().isOutputDebugLineBreaks()) {
190             result.write('\n');
191         }
192     }
193 }
194
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