Coverage Report - palmed.ui.AboutDialog

Classes in this Package	Line Coverage	Branch Coverage	Complexity
AboutDialog	0%	0%	1.5555555555555556;1,556

1		/**
2		* Redistribution and use in source and binary forms, with or without
3		* modification, are permitted provided that the following conditions are
4		* met :
5		*
6		* . Redistributions of source code must retain the above copyright
7		* notice, this list of conditions and the following disclaimer.
8		*
9		* . Redistributions in binary form must reproduce the above copyright
10		* notice, this list of conditions and the following disclaimer in the
11		* documentation and/or other materials provided with the distribution.
12		*
13		* . The name of the author may not be used to endorse or promote products
14		* derived from this software without specific prior written permission.
15		*
16		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17		* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18		* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19		* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20		* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21		* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22		* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25		* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26		* POSSIBILITY OF SUCH DAMAGE.
27		*
28		* $Id: AboutDialog.java 396 2005-12-31 12:57:52Z mat007 $
29		*/
30
31		package palmed.ui;
32
33		import javax.microedition.lcdui.Command;
34		import javax.microedition.lcdui.CommandListener;
35		import javax.microedition.lcdui.Display;
36		import javax.microedition.lcdui.Displayable;
37		import javax.microedition.lcdui.Font;
38		import javax.microedition.lcdui.Item;
39		import javax.microedition.lcdui.StringItem;
40		import javax.microedition.midlet.MIDlet;
41
42		/**
43		* This dialog shows an 'about' box.
44		*
45		* @author Mathieu Champlon
46		* @version $Revision: 396 $ $Date: 2005-12-31 21:57:52 +0900 (sam., 31 déc. 2005) $
47		*/
48		public final class AboutDialog extends Dialog implements CommandListener
49		{
50		/**
51		* The number of characters for memory fields.
52		*/
53		private static final int NUMBER_OF_DIGITS = 8;
54		/**
55		* The display.
56		*/
57		private final Display display_;
58		/**
59		* The displayable to show when closing the dialog.
60		*/
61		private final Displayable next_;
62		/**
63		* The item displaying the amount of free memory.
64		*/
65		private final StringItem freeMemory_;
66		/**
67		* The item displaying the amount of used memory.
68		*/
69		private final StringItem usedMemory_;
70		/**
71		* The item displaying the total amount of memory.
72		*/
73		private final StringItem totalMemory_;
74
75		/**
76		* Create an 'about' dialog.
77		*
78		* @param midlet the midlet to display the information about
79		* @param display the application display
80		* @param next the displayable to show when 'OK' is pressed
81		*/
82		public AboutDialog( final MIDlet midlet, final Display display, final Displayable next )
83		{
84	0	super( "About " + midlet.getAppProperty( "MIDlet-Name" ) );
85	0	if( display == null )
86	0	throw new IllegalArgumentException( "parameter 'display' is null" );
87	0	if( next == null )
88	0	throw new IllegalArgumentException( "parameter 'next' is null" );
89	0	display_ = display;
90	0	next_ = next;
91	0	appendMessage( midlet.getAppProperty( "MIDlet-Name" ) + " " + midlet.getAppProperty( "MIDlet-Version" ) );
92	0	append( createUrlItem( midlet.getAppProperty( "MIDlet-Info-URL" ) ) );
93	0	appendMessage( "Icons by the Tango Project" );
94	0	append( createUrlItem( "http://tango-project.org" ) );
95	0	appendMessage( "Memory" );
96	0	freeMemory_ = appendMessage();
97	0	usedMemory_ = appendMessage();
98	0	totalMemory_ = appendMessage();
99	0	refresh();
100	0	addCommand( new Command( "Ok", Command.OK, 1 ) );
101	0	setCommandListener( this );
102	0	}
103
104		/**
105		* Refresh informations.
106		*
107		* @return this
108		*/
109		public Displayable refresh()
110		{
111	0	Runtime.getRuntime().gc();
112	0	refreshFreeMemory();
113	0	refreshUsedMemory();
114	0	refreshTotalMemory();
115	0	return this;
116		}
117
118		private void refreshFreeMemory()
119		{
120	0	final String memory = String.valueOf( Runtime.getRuntime().freeMemory() );
121	0	freeMemory_.setText( format( memory ) + " bytes free" );
122	0	}
123
124		private void refreshUsedMemory()
125		{
126	0	final String memory = String.valueOf( Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory() );
127	0	usedMemory_.setText( format( memory ) + " bytes used" );
128	0	}
129
130		private void refreshTotalMemory()
131		{
132	0	final String memory = String.valueOf( Runtime.getRuntime().totalMemory() );
133	0	totalMemory_.setText( format( memory ) + " bytes total" );
134	0	}
135
136		private String format( final String string )
137		{
138	0	final StringBuffer buffer = new StringBuffer( string );
139	0	for( int i = 0; i < NUMBER_OF_DIGITS - string.length(); ++i )
140	0	buffer.insert( 0, ' ' );
141	0	return buffer.toString();
142		}
143
144		private StringItem appendMessage()
145		{
146	0	final StringItem item = new StringItem( null, null );
147	0	item.setLayout( Item.LAYOUT_NEWLINE_BEFORE );
148	0	item.setFont( Font.getFont( Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_SMALL ) );
149	0	append( item );
150	0	return item;
151		}
152
153		private Item createUrlItem( final String url )
154		{
155	0	final StringItem item = new StringItem( null, url, Item.HYPERLINK );
156	0	item.setLayout( Item.LAYOUT_NEWLINE_BEFORE );
157	0	return item;
158		}
159
160		/**
161		* {@inheritDoc}
162		*/
163		public void commandAction( final Command command, final Displayable displayable )
164		{
165	0	display_.setCurrent( next_ );
166	0	}
167		}