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Java > Open Source Codes > net > sf > jasperreports > engine > util > JRStyledText


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.engine.util;
29
30 import java.text.AttributedString JavaDoc;
31 import java.util.ArrayList JavaDoc;
32 import java.util.List JavaDoc;
33 import java.util.Map JavaDoc;
34
35
36 /**
37  * @author Teodor Danciu (teodord@users.sourceforge.net)
38  * @version $Id: JRStyledText.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
39  */
40 public class JRStyledText
41 {
42
43     /**
44      *
45      */
46     private StringBuffer JavaDoc sbuffer = new StringBuffer JavaDoc();
47     private List JavaDoc runs = new ArrayList JavaDoc();
48     private AttributedString JavaDoc attributedString = null;
49
50     
51     /**
52      *
53      */
54     public JRStyledText()
55     {
56     }
57
58
59     /**
60      *
61      */
62     public void append(String JavaDoc text)
63     {
64         sbuffer.append(text);
65         attributedString = null;
66     }
67
68     /**
69      *
70      */
71     public void addRun(Run run)
72     {
73         runs.add(run);
74         attributedString = null;
75     }
76
77     /**
78      *
79      */
80     public int length()
81     {
82         return sbuffer.length();
83     }
84
85     /**
86      *
87      */
88     public String JavaDoc getText()
89     {
90         return sbuffer.toString();
91     }
92
93     /**
94      *
95      */
96     public AttributedString JavaDoc getAttributedString()
97     {
98         if (attributedString == null)
99         {
100             attributedString = new AttributedString JavaDoc(sbuffer.toString());
101
102             for(int i = runs.size() - 1; i >= 0; i--)
103             {
104                 Run run = (Run)runs.get(i);
105                 if (run.startIndex != run.endIndex)
106                 {
107                     attributedString.addAttributes(run.attributes, run.startIndex, run.endIndex);
108                 }
109             }
110         }
111         
112         return attributedString;
113     }
114
115
116     /**
117      *
118      */
119     public List JavaDoc getRuns()
120     {
121         return runs;
122     }
123
124     /**
125      *
126      */
127     public static class Run
128     {
129         /**
130          *
131          */
132         public Map JavaDoc attributes = null;
133         public int startIndex = 0;
134         public int endIndex = 0;
135
136         /**
137          *
138          */
139         public Run(Map JavaDoc attributes, int startIndex, int endIndex)
140         {
141             this.attributes = attributes;
142             this.startIndex = startIndex;
143             this.endIndex = endIndex;
144         }
145     }
146     
147 }
148
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