001    /* ===========================================================
002     * JFreeChart : a free chart library for the Java(tm) platform
003     * ===========================================================
004     *
005     * (C) Copyright 2000-2011, 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     * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
025     * Other names may be trademarks of their respective owners.]
026     *
027     * -------------
028     * DateTick.java
029     * -------------
030     * (C) Copyright 2003-2009, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   Peter Kolb (patch 1934255);
034     *                   Andrew Mickish (patch 1870189);
035     *
036     * Changes
037     * -------
038     * 07-Nov-2003 : Version 1 (DG);
039     * 13-May-2004 : Added equals() method (DG);
040     * 25-Sep-2008 : Added minor tick support, see patch 1934255 by Peter Kolb (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            this(TickType.MAJOR, date, label, textAnchor, rotationAnchor, angle);
074    
075        }
076    
077        /**
078         * Creates a new date tick.
079         *
080         * @param tickType the tick type.
081         * @param date  the date.
082         * @param label  the label.
083         * @param textAnchor  the part of the label that is aligned to the anchor
084         *                    point.
085         * @param rotationAnchor  defines the rotation point relative to the text.
086         * @param angle  the rotation angle (in radians).
087         *
088         * @since 1.0.12
089         */
090        public DateTick(TickType tickType, Date date, String label,
091                        TextAnchor textAnchor, TextAnchor rotationAnchor,
092                        double angle) {
093    
094            super(tickType, date.getTime(), label, textAnchor, rotationAnchor,
095                    angle);
096            this.date = date;
097    
098        }
099    
100        /**
101         * Returns the date.
102         *
103         * @return The date.
104         */
105        public Date getDate() {
106            return this.date;
107        }
108    
109        /**
110         * Tests this tick for equality with an arbitrary object.
111         *
112         * @param obj  the object to test (<code>null</code> permitted).
113         *
114         * @return A boolean.
115         */
116        public boolean equals(Object obj) {
117            if (obj == this) {
118                return true;
119            }
120            if (!(obj instanceof DateTick)) {
121                return false;
122            }
123            DateTick that = (DateTick) obj;
124            if (!ObjectUtilities.equal(this.date, that.date)) {
125                return false;
126            }
127            return super.equals(obj);
128        }
129    
130        /**
131         * Returns a hash code for this object.
132         *
133         * @return A hash code.
134         */
135        public int hashCode() {
136            return this.date.hashCode();
137        }
138    
139    }