    001    /* ========================================================================
    002     * JCommon : a free general purpose class 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/jcommon/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     * GradientPaintTransformType.java
    029     * -------------------------------
    030     * (C) Copyright 2003-2005, by Object Refinery Limited.
    031     *
    032     * Original Author:  David Gilbert (for Object Refinery Limited);
    033     * Contributor(s):   -;
    034     *
    035     * $Id: GradientPaintTransformType.java,v 1.4 2005/10/18 13:18:34 mungady Exp $
    036     *
    037     * Changes:
    038     * --------
    039     * 21-Oct-2003 (DG);
    040     *
    041     */
    042
    043    package org.jfree.ui;
    044
    045    import java.io.ObjectStreamException;
    046    import java.io.Serializable;
    047
    048    /**
    049     * Represents a type of transform for a <code>GradientPaint</code>.
    050     *
    051     * @author David Gilbert
    052     */
    053    public final class GradientPaintTransformType implements Serializable {
    054
    055        /** For serialization. */
    056        private static final long serialVersionUID = 8331561784933982450L;
    057
    058        /** Vertical. */
    059        public static final GradientPaintTransformType VERTICAL
    060            = new GradientPaintTransformType("GradientPaintTransformType.VERTICAL");
    061
    062        /** Horizontal. */
    063        public static final GradientPaintTransformType HORIZONTAL
    064            = new GradientPaintTransformType(
    065                    "GradientPaintTransformType.HORIZONTAL");
    066
    067        /** Center/vertical. */
    068        public static final GradientPaintTransformType CENTER_VERTICAL
    069            = new GradientPaintTransformType(
    070                    "GradientPaintTransformType.CENTER_VERTICAL");
    071
    072        /** Center/horizontal. */
    073        public static final GradientPaintTransformType CENTER_HORIZONTAL
    074            = new GradientPaintTransformType(
    075                    "GradientPaintTransformType.CENTER_HORIZONTAL");
    076
    077        /** The name. */
    078        private String name;
    079
    080        /**
    081         * Private constructor.
    082         *
    083         * @param name  the name.
    084         */
    085        private GradientPaintTransformType(final String name) {
    086            this.name = name;
    087        }
    088
    089        /**
    090         * Returns a string representing the object.
    091         *
    092         * @return The string.
    093         */
    094        public String toString() {
    095            return this.name;
    096        }
    097
    098        /**
    099         * Returns <code>true</code> if this object is equal to the specified
    100         * object, and <code>false</code> otherwise.
    101         *
    102         * @param o  the other object.
    103         *
    104         * @return A boolean.
    105         */
    106        public boolean equals(final Object o) {
    107
    108            if (this == o) {
    109                return true;
    110            }
    111            if (!(o instanceof GradientPaintTransformType)) {
    112                return false;
    113            }
    114
    115            final GradientPaintTransformType t = (GradientPaintTransformType) o;
    116            if (!this.name.equals(t.name)) {
    117                return false;
    118            }
    119
    120            return true;
    121        }
    122
    123        /**
    124         * Returns a hash code value for the object.
    125         *
    126         * @return the hashcode
    127         */
    128        public int hashCode() {
    129            return this.name.hashCode();
    130        }
    131
    132        /**
    133         * Ensures that serialization returns the unique instances.
    134         *
    135         * @return The object.
    136         *
    137         * @throws ObjectStreamException if there is a problem.
    138         */
    139        private Object readResolve() throws ObjectStreamException {
    140            GradientPaintTransformType result = null;
    141            if (this.equals(GradientPaintTransformType.HORIZONTAL)) {
    142                result = GradientPaintTransformType.HORIZONTAL;
    143            }
    144            else if (this.equals(GradientPaintTransformType.VERTICAL)) {
    145                result = GradientPaintTransformType.VERTICAL;
    146            }
    147            else if (this.equals(GradientPaintTransformType.CENTER_HORIZONTAL)) {
    148                result = GradientPaintTransformType.CENTER_HORIZONTAL;
    149            }
    150            else if (this.equals(GradientPaintTransformType.CENTER_VERTICAL)) {
    151                result = GradientPaintTransformType.CENTER_VERTICAL;
    152            }
    153            return result;
    154        }
    155
    156    }
    157