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Java > Open Source Codes > com > vladium > emma > report > html > doc > IElement


1 /* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved.
2  *
3  * This program and the accompanying materials are made available under
4  * the terms of the Common Public License v1.0 which accompanies this distribution,
5  * and is available at http://www.eclipse.org/legal/cpl-v10.html
6  *
7  * $Id: IElement.java,v 1.1.1.1 2004/05/09 16:57:41 vlad_r Exp $
8  */
9 package com.vladium.emma.report.html.doc;
10
11 import java.util.ArrayList JavaDoc;
12 import java.util.Iterator JavaDoc;
13 import java.util.List JavaDoc;
14
15 // ----------------------------------------------------------------------------
16 /**
17  * @author Vlad Roubtsov, (C) 2003
18  */
19 public
20 interface IElement extends ISimpleElement, IElementList
21 {
22     // public: ................................................................
23
24     IElement setText (String JavaDoc text, boolean nbsp); // size() is 0 after this
25
26     abstract class Factory
27     {
28         public static IElement create (final Tag tag)
29         {
30             return new ElementImpl (tag, AttributeSet.create ());
31         }
32         
33         public static IElement create (final Tag tag, final AttributeSet attrs)
34         {
35             return new ElementImpl (tag, attrs);
36         }
37         
38         // TODO: should this extend ElementList?
39 static class ElementImpl extends ISimpleElement.Factory.SimpleElementImpl
40                                          implements IElement
41         {
42             public String JavaDoc toString ()
43             {
44                 return "<" + m_tag.getName () + ">";
45             }
46             
47             public void emit (final HTMLWriter out)
48             {
49                 final String JavaDoc tagName = m_tag.getName ();
50                 
51                 out.write ('<');
52                 out.write (tagName);
53                 
54                 if (! m_attrs.isEmpty ())
55                 {
56                     out.write (' ');
57                     m_attrs.emit (out);
58                 }
59                 
60                 out.write ('>');
61                 
62                 for (Iterator JavaDoc c = m_contents.iterator (); c.hasNext (); )
63                 {
64                     final IContent content = (IContent) c.next ();
65                     content.emit (out);
66                 }
67                 
68                 out.write ("</");
69                 out.write (tagName);
70                 out.write ('>');
71                 if (DEBUG_HTML) out.eol (); // using ENABLED as DEBUG here
72 }
73                         
74             public IElementList add (final IContent content)
75             {
76                 if (content != null)
77                 {
78                     m_contents.add (content);
79                 }
80                 
81                 return this;
82             }
83             
84             public IElementList add (final int index, final IContent content)
85             {
86                 if (content != null)
87                 {
88                     m_contents.add (index, content);
89                 }
90                 
91                 return this;
92             }
93             
94             public int size ()
95             {
96                 return m_contents.size ();
97             }
98             
99             public IElement setText (final String JavaDoc text, final boolean nbsp)
100             {
101                 if (text != null)
102                 {
103                     m_contents.clear ();
104                     m_contents.add (new Text (text, nbsp));
105                 }
106                 
107                 return this;
108             }
109             
110             ElementImpl (final Tag tag, final AttributeSet attrs)
111             {
112                 super (tag, attrs);
113                 
114                 m_contents = new ArrayList JavaDoc ();
115             }
116
117             
118             protected final List JavaDoc /* Content */ m_contents;
119             
120             private static final boolean DEBUG_HTML = false;
121                     
122         } // end of nested class
123
124     } // end of nested class
125
126 } // end of interface
127 // ----------------------------------------------------------------------------
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