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1 package org.columba.core.gui.base;
2
3 import java.awt.Color  ;
4 import java.util.regex.Matcher ;
5 import java.util.regex.Pattern ;
6
7 import javax.swing.text.AttributeSet ;
8 import javax.swing.text.BadLocationException ;
9 import javax.swing.text.SimpleAttributeSet ;
10 import javax.swing.text.StyleConstants ;
11
12 public class HighlighterDocument extends UndoDocument {
13
14
15 public void highlightInitialText(int length) {
16 SimpleAttributeSet gray = new SimpleAttributeSet ();
17 StyleConstants.setForeground(gray, Color.GRAY);
18 setCharacterAttributes(0, length, gray, true);
19 }
20
21 public void insertString(int offs, String str, AttributeSet a)
22 throws BadLocationException {
23
24 super.insertString(offs, str, a);
25
26 String s = getText(0,getLength());
27 highlightText(s);
28 }
29
30 public void remove(int offs,int len)
31 throws BadLocationException {
32
33 super.remove(offs, len);
34
35 String s = getText(0,getLength());
36 highlightText(s);
37 }
38
39 public void highlightText(String str) {
40
41 String EMailRegex = "([a-zA-Z0-9]+([_+\\.-][a-zA-Z0-9]+)*@([a-zA-Z0-9]+([\\.-][a-zA-Z0-9]+)*)+\\.[a-zA-Z]{2,4})";
42 String URLRegex = "(\\b((\\w*(:\\S*)?@)?(http|https|ftp)://[\\S]+)(?=\\s|$))";
43 String regex = EMailRegex + "|" + URLRegex;
44 Pattern EMailPat = Pattern.compile(regex);
45 Matcher EMailMatcher = EMailPat.matcher(str);
46
47 SimpleAttributeSet standard = new SimpleAttributeSet ();
48
49 SimpleAttributeSet highlighted = new SimpleAttributeSet ();
50 StyleConstants.setForeground(highlighted, Color.BLUE);
51 StyleConstants.setUnderline(highlighted, true);
52
53 int begin = 0;
54 int end;
55 while (EMailMatcher.find()) {
56 end = EMailMatcher.start();
57 if (end > 1)
58 setCharacterAttributes(begin, end - begin, standard, true);
59
60 begin = end;
61 end = EMailMatcher.end();
62 setCharacterAttributes(begin, end - begin, highlighted, true);
63 begin = end;
64 }
65 setCharacterAttributes(begin, str.length(), standard, true);
66 }
67 }
68 |
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