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Java > Open Source Codes > org > jfree > chart > axis > ValueTick


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  * ValueTick.java
28  * --------------
29  * (C) Copyright 2003, 2004, by Object Refinery Limited.
30  *
31  * Original Author: David Gilbert (for Object Refinery Limited);
32  * Contributor(s): -;
33  *
34  * $Id: ValueTick.java,v 1.2 2005/02/28 11:45:17 mungady Exp $
35  *
36  * Changes
37  * -------
38  * 07-Nov-2003 : Version 1 (DG);
39  *
40  */
41 package org.jfree.chart.axis;
42
43 import org.jfree.ui.TextAnchor;
44
45 /**
46  * A value tick.
47  */
48 public abstract class ValueTick extends Tick {
49
50     /** The value. */
51     private double value;
52     
53     /**
54      * Creates a new value tick.
55      *
56      * @param value the value.
57      * @param label the label.
58      * @param textAnchor the part of the label that is aligned to the anchor
59      * point.
60      * @param rotationAnchor defines the rotation point relative to the label.
61      * @param angle the rotation angle (in radians).
62      */
63     public ValueTick(double value, String JavaDoc label,
64                      TextAnchor textAnchor, TextAnchor rotationAnchor,
65                      double angle) {
66                           
67         super(label, textAnchor, rotationAnchor, angle);
68         this.value = value;
69         
70     }
71     
72     /**
73      * Returns the value.
74      *
75      * @return The value.
76      */
77     public double getValue() {
78         return this.value;
79     }
80     
81     /**
82      * Tests this tick for equality with an arbitrary object.
83      *
84      * @param obj the object to test (<code>null</code> permitted).
85      *
86      * @return A boolean.
87      */
88     public boolean equals(Object JavaDoc obj) {
89         if (obj == this) {
90             return true;
91         }
92         if (obj instanceof ValueTick && super.equals(obj)) {
93             ValueTick vt = (ValueTick) obj;
94             if (!(this.value == vt.value)) {
95                 return false;
96             }
97             return true;
98         }
99         return false;
100     }
101     
102 }
103
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