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Java > Open Source Codes > com > jcorporate > expresso > services > html > Paragraph


1 /* ====================================================================
2  * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
3  *
4  * Copyright (c) 1995-2002 Jcorporate Ltd. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
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10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
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13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  *
18  * 3. The end-user documentation included with the redistribution,
19  * if any, must include the following acknowledgment:
20  * "This product includes software developed by Jcorporate Ltd.
21  * (http://www.jcorporate.com/)."
22  * Alternately, this acknowledgment may appear in the software itself,
23  * if and wherever such third-party acknowledgments normally appear.
24  *
25  * 4. "Jcorporate" and product names such as "Expresso" must
26  * not be used to endorse or promote products derived from this
27  * software without prior written permission. For written permission,
28  * please contact info@jcorporate.com.
29  *
30  * 5. Products derived from this software may not be called "Expresso",
31  * or other Jcorporate product names; nor may "Expresso" or other
32  * Jcorporate product names appear in their name, without prior
33  * written permission of Jcorporate Ltd.
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40  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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42  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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54  * This software consists of voluntary contributions made by many
55  * individuals on behalf of the Jcorporate Ltd. Contributions back
56  * to the project(s) are encouraged when you make modifications.
57  * Please send them to support@jcorporate.com. For more information
58  * on Jcorporate Ltd. and its products, please see
59  * <http://www.jcorporate.com/>.
60  *
61  * Portions of this software are based upon other open source
62  * products and are subject to their respective licenses.
63  */
64
65 package com.jcorporate.expresso.services.html;
66
67 /**
68  * Paragraph.java
69  *
70  * Copyright 1999, 2000, 2001 Jcorporate Ltd.
71  */
72
73 import java.io.PrintWriter JavaDoc;
74 import java.util.Enumeration JavaDoc;
75
76
77 /**
78  * An HTML paragraph object
79  *
80  * @author Michael Nash
81  * @version $Revision: 1.8 $ $Date: 2004/11/17 20:48:18 $
82  */
83 public class Paragraph
84         extends HtmlElement {
85     private String JavaDoc thisClass = this.getClass().getName();
86     private String JavaDoc alignment = "center";
87
88     /**
89      * Constructor
90      *
91      * @throws HtmlException If the superclass constructor fails
92      */
93     public Paragraph()
94             throws HtmlException {
95         super();
96     } /* Paragraph() */
97
98     /**
99      * Constructor
100      * Create the paragraph with the given element as it's contents
101      *
102      * @param newElement Element to use as contents
103      * @throws HtmlException If the parameter is invalid
104      */
105     public Paragraph(HtmlElement newElement)
106             throws HtmlException {
107         super(newElement);
108     } /* Paragraph(HtmlElement) */
109
110     /**
111      * Constructor
112      * Create a paragraph with the given name
113      *
114      * @param newString Name of the new paragraph
115      * @throws HtmlException If the parameter is invalid
116      */
117     public Paragraph(String JavaDoc newString)
118             throws HtmlException {
119         super(newString);
120     } /* Paragraph(String) */
121
122     /**
123      * Display the paragraph
124      *
125      * @param out PrintWriter to the client
126      * @param depth the number of tabs to indent
127      * @throws HtmlException If the paragraph cannot be displayed
128      */
129     protected void display(PrintWriter JavaDoc out, int depth)
130             throws HtmlException {
131         String JavaDoc myName = (thisClass + "display(PrintWriter)");
132
133         if (contents.size() == 0) {
134             throw new HtmlException(myName + ":Paragraph " + getName() +
135                     " has no contents");
136         }
137
138         this.padWithTabs(out, depth);
139         out.print("<p");
140
141         if (cSSClass != null) {
142             out.print(" class=\"" + cSSClass + "\"");
143         }
144         if (cSSID != null) {
145             out.print(" id=\"" + cSSID + "\"");
146         }
147         if (alignment != null) {
148             out.print(" align=\"" + alignment);
149         }
150
151         out.println("\">");
152
153         HtmlElement oneElement = null;
154
155         for (Enumeration JavaDoc e = contents.elements(); e.hasMoreElements();) {
156             oneElement = (HtmlElement) e.nextElement();
157             oneElement.display(out, depth + 1);
158         }
159
160         this.padWithTabs(out, depth);
161         out.println("</p>");
162         setDisplayed();
163     } /* display(PrintWriter) */
164
165
166     /**
167      * Set the horizontal alignment of the contents of this paragraph
168      *
169      * @param newAlignment New alignment as a string. Must be "left", "right"
170      * or "center"
171      * @throws HtmlException If the parameter is invalid
172      */
173     public synchronized void setAlignment(String JavaDoc newAlignment)
174             throws HtmlException {
175         String JavaDoc myName = (thisClass + "setAlignment(String)");
176
177         if (newAlignment.equalsIgnoreCase("left")) {
178             alignment = newAlignment;
179         } else if (newAlignment.equalsIgnoreCase("right")) {
180             alignment = newAlignment;
181         } else if (newAlignment.equalsIgnoreCase("center")) {
182             alignment = newAlignment;
183         } else {
184             throw new HtmlException(myName +
185                     ":Alignment must be left, right, or center for '" +
186                     getName() + "'");
187         }
188     } /* setAlignment(String) */
189
190
191 } /* Paragraph */
192
193 /* Paragraph */
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