001: /* ====================================================================
002: * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
003: *
004: * Copyright (c) 1995-2002 Jcorporate Ltd. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * 2. Redistributions in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution,
019: * if any, must include the following acknowledgment:
020: * "This product includes software developed by Jcorporate Ltd.
021: * (http://www.jcorporate.com/)."
022: * Alternately, this acknowledgment may appear in the software itself,
023: * if and wherever such third-party acknowledgments normally appear.
024: *
025: * 4. "Jcorporate" and product names such as "Expresso" must
026: * not be used to endorse or promote products derived from this
027: * software without prior written permission. For written permission,
028: * please contact info@jcorporate.com.
029: *
030: * 5. Products derived from this software may not be called "Expresso",
031: * or other Jcorporate product names; nor may "Expresso" or other
032: * Jcorporate product names appear in their name, without prior
033: * written permission of Jcorporate Ltd.
034: *
035: * 6. No product derived from this software may compete in the same
036: * market space, i.e. framework, without prior written permission
037: * of Jcorporate Ltd. For written permission, please contact
038: * partners@jcorporate.com.
039: *
040: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
041: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
042: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
043: * DISCLAIMED. IN NO EVENT SHALL JCORPORATE LTD OR ITS CONTRIBUTORS
044: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
045: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
046: * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
047: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
048: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
049: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
050: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
051: * SUCH DAMAGE.
052: * ====================================================================
053: *
054: * This software consists of voluntary contributions made by many
055: * individuals on behalf of the Jcorporate Ltd. Contributions back
056: * to the project(s) are encouraged when you make modifications.
057: * Please send them to support@jcorporate.com. For more information
058: * on Jcorporate Ltd. and its products, please see
059: * <http://www.jcorporate.com/>.
060: *
061: * Portions of this software are based upon other open source
062: * products and are subject to their respective licenses.
063: */
064:
065: package com.jcorporate.expresso.services.html;
066:
067: /**
068: * CheckBox.java
069: *
070: * Copyright 1999, 2000, 2001 Jcorporate Ltd.
071: */
072:
073: import java.io.PrintWriter;
074: import java.util.Enumeration;
075: import java.util.Vector;
076:
077: /**
078: * An HTML checkbox for use on HTML forms
079: *
080: * @author Michael Nash
081: * @version $Revision: 1.8 $ $Date: 2004/11/17 20:48:18 $
082: */
083: public class CheckBox extends HtmlElement {
084: private String fieldName = null;
085: protected String currentValue = ("");
086: private Vector values = new Vector(3);
087: private Vector labels = new Vector(3);
088: private boolean isChecked = false;
089: private String this Class = (this .getClass().getName() + ".");
090: private boolean isVertical = false;
091:
092: /**
093: * Constructor
094: *
095: * @throws HtmlException If the superclass constructor fails
096: */
097: public CheckBox() throws HtmlException {
098: super ();
099: } /* CheckBox() */
100:
101: /**
102: * Create a checkbox with the field name as given with a specific current value
103: *
104: * @param newFieldName Field name of the new checkbox
105: * @param newCurrentValue Current value of the drop down (selected item)
106: * @throws HtmlException If the parameters are invalid
107: */
108: public CheckBox(String newFieldName, String newCurrentValue)
109: throws HtmlException {
110: super (newFieldName);
111: fieldName = newFieldName;
112: currentValue = newCurrentValue;
113: } /* CheckBox(String, String) */
114:
115: /**
116: * Constructor
117: * Create the checkbox with a given name and value and state
118: *
119: * @param newFieldName Name of the field on the form
120: * @param newFieldValue Value of the field when checked
121: * @param newChecked True if the box's initial state is checked, else false
122: * @throws HtmlException If a parameter is invalid
123: */
124: public CheckBox(String newFieldName, String newFieldValue,
125: boolean newChecked) throws HtmlException {
126: super (newFieldName);
127: fieldName = newFieldName;
128: addOption(newFieldValue, "");
129: setCurrentValue(newFieldValue);
130: isChecked = newChecked;
131: } /* CheckBox(String, String, boolean) */
132:
133: /**
134: * Add a new option to this checkbox
135: *
136: * @param fieldValue Value of the new option
137: * @param fieldLabel Label of the new option
138: * @throws HtmlException If the parameters are invalid
139: */
140: public synchronized void addOption(String fieldValue,
141: String fieldLabel) throws HtmlException {
142: values.addElement(fieldValue);
143: labels.addElement(fieldLabel);
144: } /* addOption(String, String) */
145:
146: /**
147: * Display this CheckBox to the appropriate PrintWriter
148: *
149: * @param out PrintWriter to display
150: * @param depth the number of tabs to indent
151: * @throws HtmlException If the Radio cannot be displayed
152: */
153: protected synchronized void display(PrintWriter out, int depth)
154: throws HtmlException {
155: String myName = (this Class + "display(PrintWriter)");
156:
157: if (values.size() == 0) {
158: throw new HtmlException(myName + ":CheckBox " + getName()
159: + " has no choices");
160: }
161:
162: String oneValue = null;
163: String oneLabel = null;
164: Enumeration e2 = labels.elements();
165:
166: for (Enumeration e = values.elements(); e.hasMoreElements();) {
167: oneValue = (String) e.nextElement();
168: oneLabel = (String) e2.nextElement();
169:
170: if (isVertical) {
171: this .padWithTabs(out, depth);
172: out.print("<br />");
173: }
174: if ((oneLabel != null) && !(oneLabel.trim().equals(""))) {
175: out.println(oneLabel);
176: }
177: if (isChecked) {
178: this .padWithTabs(out, depth);
179: out.println("<input type=checkbox name=\"" + fieldName
180: + "\" checked value=\"" + oneValue + "\"/>");
181: } else {
182: this .padWithTabs(out, depth);
183: out.println("<input type=checkbox name=\"" + fieldName
184: + "\" value=\"" + oneValue + "\"/>");
185: }
186: }
187:
188: setDisplayed();
189: } /* display(PrintWriter) */
190:
191: /**
192: * Set the current "checked" status
193: *
194: * @param newChecked set to true if checked
195: * @throws HtmlException If the parameter is invalid
196: */
197: public void setChecked(boolean newChecked) throws HtmlException {
198: isChecked = newChecked;
199: } /* setChecked(boolean) */
200:
201: /**
202: * Set the currently selected value for this checkbox
203: *
204: * @param newCurrentValue The value for this checkbox
205: * @throws HtmlException If the parameter is invalid
206: */
207: public void setCurrentValue(String newCurrentValue)
208: throws HtmlException {
209: currentValue = newCurrentValue;
210: } /* setCurrentValue(String) */
211:
212: /**
213: * @param state set to true if the checkboxes are vertical
214: */
215: public void setVertical(boolean state) {
216: isVertical = state;
217: } /* setVertical(boolean) */
218:
219: } /* CheckBox */
220:
221: /* CheckBox */
|