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Java > Open Source Codes > edu > rice > cs > drjava > config > ColorOption


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33
34 package edu.rice.cs.drjava.config;
35 import java.awt.*;
36
37 /**
38  * Class defining all configuration options with values of type Color.
39  * @version $Id: ColorOption.java 3903 2006-07-05 20:03:06Z rcartwright $
40  */
41 public class ColorOption extends Option<Color>{
42   
43   public ColorOption(String JavaDoc key, Color def) { super(key,def); }
44   
45   public Color parse(String JavaDoc s) {
46     try { return Color.decode(s); }
47     catch (NumberFormatException JavaDoc nfe) {
48       throw new OptionParseException(name, s,
49                                      "Must be a string that represents an " +
50                                      "opaque color as a 24-bit integer.");
51     }
52   }
53   
54   public String JavaDoc format(Color c) {
55     int len = 6; // always want to display 6 alphanumeric characters
56 String JavaDoc str = Integer.toHexString(c.getRGB() & 0xFFFFFF);
57     final StringBuilder JavaDoc buff = new StringBuilder JavaDoc(str);
58     for (int i = 0; i < (len - str.length()); i++) buff.insert(0, '0');
59     buff.insert(0, '#');
60     return buff.toString();
61   }
62 }
63
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