1. /* ===========================================================

  2.  * JFreeChart : a free chart library for the Java(tm) platform

  3.  * ===========================================================

  4.  *

  5.  * (C) Copyright 2000-2004, 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 under the terms

  10.  * of the GNU Lesser General Public License as published by the Free Software Foundation;

  11.  * either version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

  14.  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  15.  * See the GNU Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public License along with this

  18.  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,

  19.  * Boston, MA 02111-1307, USA.

  20.  *

  21.  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

  22.  * in the United States and other countries.]

  23.  *

  24.  * ----------------

  25.  * GreyPalette.java

  26.  * ----------------

  27.  * (C) Copyright 2002-2004, by David M. O'Donnell and Contributors.

  28.  *

  29.  * Original Author:  David M. O'Donnell;

  30.  * Contributor(s):   David Gilbert (for Object Refinery Limited);

  31.  *

  32.  * $Id: GreyPalette.java,v 1.1 2004/08/31 14:54:21 mungady Exp $

  33.  *

  34.  * Changes

  35.  * -------

  36.  * 26-Nov-2002 : Version 1 contributed by David M. O'Donnell (DG);

  37.  * 26-Mar-2003 : Implemented Serializable (DG);

  38.  *

  39.  */

  40. 

  41. package org.jfree.chart.ui;

  42. 

  43. import java.io.Serializable;

  44. 

  45. /**

  46.  * A grey color palette.

  47.  *

  48.  * @author David M. O'Donnell.

  49.  */

  50. public class GreyPalette extends ColorPalette implements Serializable {

  51. 

  52.     /**

  53.      * Creates a new palette.

  54.      */

  55.     public GreyPalette() {

  56.         super();

  57.         initialize();

  58.     }

  59. 

  60.     /**

  61.      * Intializes the palette's indices.

  62.      */

  63.     public void initialize() {

  64. 

  65.         setPaletteName("Grey");

  66. 

  67.         this.r = new int[256];

  68.         this.g = new int[256];

  69.         this.b = new int[256];

  70. 

  71.         this.r[0] = 255;

  72.         this.g[0] = 255;

  73.         this.b[0] = 255;

  74.         this.r[1] = 0;

  75.         this.g[1] = 0;

  76.         this.b[1] = 0;

  77. 

  78.         for (int i = 2; i < 256; i++) {

  79.             this.r[i] = i;

  80.             this.g[i] = i;

  81.             this.b[i] = i;

  82.         }

  83. 

  84.     }

  85. 

  86. }