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Java > Open Source Codes > org > jfree > chart > ui > GreyPalette


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jfreechart/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public License
20  * along with this library; if not, write to the Free Software Foundation,
21  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24  * in the United States and other countries.]
25  *
26  * ----------------
27  * GreyPalette.java
28  * ----------------
29  * (C) Copyright 2002-2005, by David M. O'Donnell and Contributors.
30  *
31  * Original Author: David M. O'Donnell;
32  * Contributor(s): David Gilbert (for Object Refinery Limited);
33  *
34  * $Id: GreyPalette.java,v 1.3 2005/05/19 14:01:47 mungady Exp $
35  *
36  * Changes
37  * -------
38  * 26-Nov-2002 : Version 1 contributed by David M. O'Donnell (DG);
39  * 26-Mar-2003 : Implemented Serializable (DG);
40  *
41  */
42
43 package org.jfree.chart.ui;
44
45 import java.io.Serializable JavaDoc;
46
47 /**
48  * A grey color palette.
49  *
50  * @author David M. O'Donnell.
51  */
52 public class GreyPalette extends ColorPalette implements Serializable JavaDoc {
53
54     /** For serialization. */
55     private static final long serialVersionUID = -2120941170159987395L;
56     
57     /**
58      * Creates a new palette.
59      */
60     public GreyPalette() {
61         super();
62         initialize();
63     }
64
65     /**
66      * Intializes the palette's indices.
67      */
68     public void initialize() {
69
70         setPaletteName("Grey");
71
72         this.r = new int[256];
73         this.g = new int[256];
74         this.b = new int[256];
75
76         this.r[0] = 255;
77         this.g[0] = 255;
78         this.b[0] = 255;
79         this.r[1] = 0;
80         this.g[1] = 0;
81         this.b[1] = 0;
82
83         for (int i = 2; i < 256; i++) {
84             this.r[i] = i;
85             this.g[i] = i;
86             this.b[i] = i;
87         }
88
89     }
90
91 }
92
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