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Java > Open Source Codes > org > jrobin > graph > ChartPanel


1 /* ============================================================
2  * JRobin : Pure java implementation of RRDTool's functionality
3  * ============================================================
4  *
5  * Project Info: http://www.jrobin.org
6  * Project Lead: Sasa Markovic (saxon@jrobin.org)
7  *
8  * Developers: Sasa Markovic (saxon@jrobin.org)
9  * Arne Vandamme (cobralord@jrobin.org)
10  *
11  * (C) Copyright 2003, by Sasa Markovic.
12  *
13  * This library is free software; you can redistribute it and/or modify it under the terms
14  * of the GNU Lesser General Public License as published by the Free Software Foundation;
15  * either version 2.1 of the License, or (at your option) any later version.
16  *
17  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
18  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19  * See the GNU Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public License along with this
22  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
23  * Boston, MA 02111-1307, USA.
24  */
25 package org.jrobin.graph;
26
27 import java.awt.*;
28 import java.awt.image.BufferedImage JavaDoc;
29 import javax.swing.JPanel JavaDoc;
30
31 /**
32  * <p>JPanel containing a generated JRobin graph.</p>
33  *
34  * @author Arne Vandamme (cobralord@jrobin.org)
35  */
36 public class ChartPanel extends JPanel JavaDoc
37 {
38     private BufferedImage JavaDoc chart;
39     
40     public void setChart( BufferedImage JavaDoc chart ) {
41         this.chart = chart;
42     }
43
44     /**
45      * Overrides inhereted <code>paintComponent()</code> method from the base class.
46      * @param g Graphics object
47      */
48     public void paintComponent( Graphics g )
49     {
50         if ( chart != null ) g.drawImage( chart, 0, 0, null );
51     }
52 }
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