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 }