1/* 2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25package javax.swing.text.html; 26 27import java.io.Serializable; 28import javax.swing.text.*; 29 30/** 31 * Value for the ListModel used to represent 32 * <option> elements. This is the object 33 * installed as items of the DefaultComboBoxModel 34 * used to represent the <select> element. 35 * <p> 36 * <strong>Warning:</strong> 37 * Serialized objects of this class will not be compatible with 38 * future Swing releases. The current serialization support is 39 * appropriate for short term storage or RMI between applications running 40 * the same version of Swing. As of 1.4, support for long term storage 41 * of all JavaBeans™ 42 * has been added to the <code>java.beans</code> package. 43 * Please see {@link java.beans.XMLEncoder}. 44 * 45 * @author Timothy Prinzing 46 */ 47@SuppressWarnings("serial") // Same-version serialization only 48public class Option implements Serializable { 49 50 /** 51 * Creates a new Option object. 52 * 53 * @param attr the attributes associated with the 54 * option element. The attributes are copied to 55 * ensure they won't change. 56 */ 57 public Option(AttributeSet attr) { 58 this.attr = attr.copyAttributes(); 59 selected = (attr.getAttribute(HTML.Attribute.SELECTED) != null); 60 } 61 62 /** 63 * Sets the label to be used for the option. 64 * 65 * @param label a label. 66 */ 67 public void setLabel(String label) { 68 this.label = label; 69 } 70 71 /** 72 * Fetch the label associated with the option. 73 * 74 * @return the label associated with the option. 75 */ 76 public String getLabel() { 77 return label; 78 } 79 80 /** 81 * Fetch the attributes associated with this option. 82 * 83 * @return the attributes associated with this option. 84 */ 85 public AttributeSet getAttributes() { 86 return attr; 87 } 88 89 /** 90 * String representation is the label. 91 */ 92 public String toString() { 93 return label; 94 } 95 96 /** 97 * Sets the selected state. 98 * 99 * @param state a selection state 100 */ 101 protected void setSelection(boolean state) { 102 selected = state; 103 } 104 105 /** 106 * Fetches the selection state associated with this option. 107 * 108 * @return the selection state. 109 */ 110 public boolean isSelected() { 111 return selected; 112 } 113 114 /** 115 * Convenient method to return the string associated 116 * with the {@code value} attribute. If the 117 * {@code value} has not been specified, the {@code label} will be 118 * returned. 119 * 120 * @return the string associated with the {@code value} attribute, 121 * or {@code label} if the value has been not specified. 122 */ 123 public String getValue() { 124 String value = (String) attr.getAttribute(HTML.Attribute.VALUE); 125 if (value == null) { 126 value = label; 127 } 128 return value; 129 } 130 131 private boolean selected; 132 private String label; 133 private AttributeSet attr; 134} 135