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: * AreaRendererEndType.java
029: * ------------------------
030: * (C) Copyright 2004, 2005, by Object Refinery Limited.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: AreaRendererEndType.java,v 1.4.2.1 2005/10/25 20:53:40 mungady Exp $
036: *
037: * Changes:
038: * --------
039: * 29-April-2004 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.renderer;
044:
045: import java.io.ObjectStreamException;
046: import java.io.Serializable;
047:
048: /**
049: * An enumeration of the 'end types' for an area renderer.
050: */
051: public final class AreaRendererEndType implements Serializable {
052:
053: /** For serialization. */
054: private static final long serialVersionUID = -1774146392916359839L;
055:
056: /**
057: * The area tapers from the first or last value down to zero.
058: */
059: public static final AreaRendererEndType TAPER = new AreaRendererEndType(
060: "AreaRendererEndType.TAPER");
061:
062: /**
063: * The area is truncated at the first or last value.
064: */
065: public static final AreaRendererEndType TRUNCATE = new AreaRendererEndType(
066: "AreaRendererEndType.TRUNCATE");
067:
068: /**
069: * The area is levelled at the first or last value.
070: */
071: public static final AreaRendererEndType LEVEL = new AreaRendererEndType(
072: "AreaRendererEndType.LEVEL");
073:
074: /** The name. */
075: private String name;
076:
077: /**
078: * Private constructor.
079: *
080: * @param name the name.
081: */
082: private AreaRendererEndType(String name) {
083: this .name = name;
084: }
085:
086: /**
087: * Returns a string representing the object.
088: *
089: * @return The string.
090: */
091: public String toString() {
092: return this .name;
093: }
094:
095: /**
096: * Returns <code>true</code> if this object is equal to the specified
097: * object, and <code>false</code> otherwise.
098: *
099: * @param o the other object.
100: *
101: * @return A boolean.
102: */
103: public boolean equals(Object o) {
104:
105: if (this == o) {
106: return true;
107: }
108: if (!(o instanceof AreaRendererEndType)) {
109: return false;
110: }
111:
112: AreaRendererEndType t = (AreaRendererEndType) o;
113: if (!this .name.equals(t.toString())) {
114: return false;
115: }
116:
117: return true;
118:
119: }
120:
121: /**
122: * Ensures that serialization returns the unique instances.
123: *
124: * @return The object.
125: *
126: * @throws ObjectStreamException if there is a problem.
127: */
128: private Object readResolve() throws ObjectStreamException {
129: Object result = null;
130: if (this.equals(AreaRendererEndType.LEVEL)) {
131: result = AreaRendererEndType.LEVEL;
132: } else if (this.equals(AreaRendererEndType.TAPER)) {
133: result = AreaRendererEndType.TAPER;
134: } else if (this.equals(AreaRendererEndType.TRUNCATE)) {
135: result = AreaRendererEndType.TRUNCATE;
136: }
137: return result;
138: }
139:
140: }
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