001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * -------------
028 * DateTick.java
029 * -------------
030 * (C) Copyright 2003, 2004, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * $Id: DateTick.java,v 1.4.2.1 2005/10/25 20:37:34 mungady Exp $
036 *
037 * Changes
038 * -------
039 * 07-Nov-2003 : Version 1 (DG);
040 * 13-May-2004 : Added equals() method (DG);
041 *
042 */
043
044 package org.jfree.chart.axis;
045
046 import java.util.Date;
047
048 import org.jfree.ui.TextAnchor;
049 import org.jfree.util.ObjectUtilities;
050
051 /**
052 * A tick used by the {@link DateAxis} class.
053 */
054 public class DateTick extends ValueTick {
055
056 /** The date. */
057 private Date date;
058
059 /**
060 * Creates a new date tick.
061 *
062 * @param date the date.
063 * @param label the label.
064 * @param textAnchor the part of the label that is aligned to the anchor
065 * point.
066 * @param rotationAnchor defines the rotation point relative to the text.
067 * @param angle the rotation angle (in radians).
068 */
069 public DateTick(Date date, String label,
070 TextAnchor textAnchor, TextAnchor rotationAnchor,
071 double angle) {
072
073 super(date.getTime(), label, textAnchor, rotationAnchor, angle);
074 this.date = date;
075
076 }
077
078 /**
079 * Returns the date.
080 *
081 * @return The date.
082 */
083 public Date getDate() {
084 return this.date;
085 }
086
087 /**
088 * Tests this tick for equality with an arbitrary object.
089 *
090 * @param obj the object to test (<code>null</code> permitted).
091 *
092 * @return A boolean.
093 */
094 public boolean equals(Object obj) {
095 if (obj == this) {
096 return true;
097 }
098 if (obj instanceof DateTick && super.equals(obj)) {
099 DateTick dt = (DateTick) obj;
100 if (!ObjectUtilities.equal(this.date, dt.date)) {
101 return false;
102 }
103 return true;
104 }
105 return false;
106 }
107
108 /**
109 * Returns a hash code for this object.
110 *
111 * @return A hash code.
112 */
113 public int hashCode() {
114 return this.date.hashCode();
115 }
116
117 }