001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2007, 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 2003-2007, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * Changes
036 * -------
037 * 07-Nov-2003 : Version 1 (DG);
038 * 13-May-2004 : Added equals() method (DG);
039 *
040 */
041
042 package org.jfree.chart.axis;
043
044 import java.util.Date;
045
046 import org.jfree.ui.TextAnchor;
047 import org.jfree.util.ObjectUtilities;
048
049 /**
050 * A tick used by the {@link DateAxis} class.
051 */
052 public class DateTick extends ValueTick {
053
054 /** The date. */
055 private Date date;
056
057 /**
058 * Creates a new date tick.
059 *
060 * @param date the date.
061 * @param label the label.
062 * @param textAnchor the part of the label that is aligned to the anchor
063 * point.
064 * @param rotationAnchor defines the rotation point relative to the text.
065 * @param angle the rotation angle (in radians).
066 */
067 public DateTick(Date date, String label,
068 TextAnchor textAnchor, TextAnchor rotationAnchor,
069 double angle) {
070
071 super(date.getTime(), label, textAnchor, rotationAnchor, angle);
072 this.date = date;
073
074 }
075
076 /**
077 * Returns the date.
078 *
079 * @return The date.
080 */
081 public Date getDate() {
082 return this.date;
083 }
084
085 /**
086 * Tests this tick for equality with an arbitrary object.
087 *
088 * @param obj the object to test (<code>null</code> permitted).
089 *
090 * @return A boolean.
091 */
092 public boolean equals(Object obj) {
093 if (obj == this) {
094 return true;
095 }
096 if (obj instanceof DateTick && super.equals(obj)) {
097 DateTick dt = (DateTick) obj;
098 if (!ObjectUtilities.equal(this.date, dt.date)) {
099 return false;
100 }
101 return true;
102 }
103 return false;
104 }
105
106 /**
107 * Returns a hash code for this object.
108 *
109 * @return A hash code.
110 */
111 public int hashCode() {
112 return this.date.hashCode();
113 }
114
115 }