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 /** 064 * The area is truncated at the first or last value. 065 */ 066 public static final AreaRendererEndType TRUNCATE = new AreaRendererEndType( 067 "AreaRendererEndType.TRUNCATE" 068 ); 069 070 /** 071 * The area is levelled at the first or last value. 072 */ 073 public static final AreaRendererEndType LEVEL = new AreaRendererEndType( 074 "AreaRendererEndType.LEVEL" 075 ); 076 077 /** The name. */ 078 private String name; 079 080 /** 081 * Private constructor. 082 * 083 * @param name the name. 084 */ 085 private AreaRendererEndType(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(Object o) { 107 108 if (this == o) { 109 return true; 110 } 111 if (!(o instanceof AreaRendererEndType)) { 112 return false; 113 } 114 115 AreaRendererEndType t = (AreaRendererEndType) o; 116 if (!this.name.equals(t.toString())) { 117 return false; 118 } 119 120 return true; 121 122 } 123 124 /** 125 * Ensures that serialization returns the unique instances. 126 * 127 * @return The object. 128 * 129 * @throws ObjectStreamException if there is a problem. 130 */ 131 private Object readResolve() throws ObjectStreamException { 132 Object result = null; 133 if (this.equals(AreaRendererEndType.LEVEL)) { 134 result = AreaRendererEndType.LEVEL; 135 } 136 else if (this.equals(AreaRendererEndType.TAPER)) { 137 result = AreaRendererEndType.TAPER; 138 } 139 else if (this.equals(AreaRendererEndType.TRUNCATE)) { 140 result = AreaRendererEndType.TRUNCATE; 141 } 142 return result; 143 } 144 145 }