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, TextAnchor textAnchor,
070: TextAnchor rotationAnchor, double angle) {
071:
072: super (date.getTime(), label, textAnchor, rotationAnchor, angle);
073: this .date = date;
074:
075: }
076:
077: /**
078: * Returns the date.
079: *
080: * @return The date.
081: */
082: public Date getDate() {
083: return this .date;
084: }
085:
086: /**
087: * Tests this tick for equality with an arbitrary object.
088: *
089: * @param obj the object to test (<code>null</code> permitted).
090: *
091: * @return A boolean.
092: */
093: public boolean equals(Object obj) {
094: if (obj == this ) {
095: return true;
096: }
097: if (obj instanceof DateTick && super .equals(obj)) {
098: DateTick dt = (DateTick) obj;
099: if (!ObjectUtilities.equal(this .date, dt.date)) {
100: return false;
101: }
102: return true;
103: }
104: return false;
105: }
106:
107: /**
108: * Returns a hash code for this object.
109: *
110: * @return A hash code.
111: */
112: public int hashCode() {
113: return this.date.hashCode();
114: }
115:
116: }
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