001 package com.croftsoft.apps.clock;
002
003 import java.awt.*;
004 import java.awt.event.*;
005 import java.awt.font.*;
006 import java.awt.geom.*;
007 import java.io.*;
008 import java.util.*;
009 import javax.swing.*;
010
011 import com.croftsoft.core.awt.font.FontLib;
012 import com.croftsoft.core.gui.FrameLib;
013 import com.croftsoft.core.lang.lifecycle.Lifecycle;
014 import com.croftsoft.core.text.DateFormatLib;
015
016 /*********************************************************************
017 * This digital clock applet/application displays the date and time.
018 *
019 * @version
020 * 2002-03-06
021 * @since
022 * 1996
023 * @author
024 * <a href="https://www.croftsoft.com/">David Wallace Croft</a>
025 *********************************************************************/
026
027 public class DigitalClock
028 extends JApplet
029 implements ComponentListener, Lifecycle, Runnable
030 //////////////////////////////////////////////////////////////////////
031 //////////////////////////////////////////////////////////////////////
032 {
033
034 private static final String VERSION = "2002-03-06";
035
036 private static final String TITLE = "CroftSoft Clock";
037
038 private static final String INFO
039 = "\n" + TITLE + "\n"
040 + "Copyright 2002 CroftSoft Inc\n"
041 + "https://www.croftsoft.com/\n"
042 + "Version " + VERSION + "\n";
043
044 private static final Dimension FRAME_SIZE = null;
045
046 private static final String FRAME_ICON_FILENAME = "/images/david.png";
047
048 private static final String SHUTDOWN_CONFIRMATION_PROMPT
049 = "Close " + TITLE + "?";
050
051 private static final String FONT_NAME = "TimesRoman";
052
053 private static final int FONT_STYLE = Font.BOLD;
054
055 private static final String IDLE_DATE_TEXT = "CroftSoft";
056
057 private static final String IDLE_TIME_TEXT = "www.CroftSoft.com";
058
059 private static final String ACTIVE_DATE_TEXT = "0000-00-00";
060
061 private static final String ACTIVE_TIME_TEXT = "00:00:00";
062
063 //
064
065 private JLabel dateLabel;
066
067 private JLabel timeLabel;
068
069 private Thread thread;
070
071 private String resizeDateText;
072
073 private String resizeTimeText;
074
075 //////////////////////////////////////////////////////////////////////
076 //////////////////////////////////////////////////////////////////////
077
078 public static void main ( String [ ] args )
079 //////////////////////////////////////////////////////////////////////
080 {
081 System.out.println ( INFO );
082
083 JFrame jFrame = new JFrame ( TITLE );
084
085 try
086 {
087 FrameLib.setIconImage ( jFrame, FRAME_ICON_FILENAME );
088 }
089 catch ( IOException ex )
090 {
091 }
092
093 DigitalClock digitalClock = new DigitalClock ( );
094
095 jFrame.setContentPane ( digitalClock );
096
097 FrameLib.launchJFrameAsDesktopApp (
098 jFrame,
099 new Lifecycle [ ] { digitalClock },
100 FRAME_SIZE,
101 SHUTDOWN_CONFIRMATION_PROMPT );
102 }
103
104 //////////////////////////////////////////////////////////////////////
105 //////////////////////////////////////////////////////////////////////
106
107 public String getAppletInfo ( ) { return INFO; }
108
109 //////////////////////////////////////////////////////////////////////
110 //////////////////////////////////////////////////////////////////////
111
112 public synchronized void init ( )
113 //////////////////////////////////////////////////////////////////////
114 {
115 resizeDateText = IDLE_DATE_TEXT;
116
117 resizeTimeText = IDLE_TIME_TEXT;
118
119 dateLabel = new JLabel ( IDLE_DATE_TEXT );
120
121 dateLabel.setHorizontalAlignment ( SwingConstants.CENTER );
122
123 timeLabel = new JLabel ( IDLE_TIME_TEXT );
124
125 timeLabel.setHorizontalAlignment ( SwingConstants.CENTER );
126
127 Container contentPane = getContentPane ( );
128
129 contentPane.setBackground ( Color.WHITE );
130
131 contentPane.setForeground ( Color.BLACK );
132
133 contentPane.setLayout ( new GridLayout ( 2, 1 ) );
134
135 contentPane.add ( dateLabel );
136
137 contentPane.add ( timeLabel );
138
139 timeLabel.addComponentListener ( this );
140 }
141
142 public synchronized void start ( )
143 //////////////////////////////////////////////////////////////////////
144 {
145 thread = new Thread ( this );
146
147 int priority = thread.getPriority ( ) - 1;
148
149 if ( priority >= Thread.MIN_PRIORITY )
150 {
151 thread.setPriority ( priority );
152 }
153
154 thread.setDaemon ( true );
155
156 thread.start ( );
157 }
158
159 public synchronized void stop ( )
160 //////////////////////////////////////////////////////////////////////
161 {
162 Thread thread = this.thread;
163
164 if ( thread != null )
165 {
166 this.thread = null;
167
168 thread.interrupt ( );
169 }
170 }
171
172 public synchronized void destroy ( )
173 //////////////////////////////////////////////////////////////////////
174 {
175 stop ( );
176 }
177
178 //////////////////////////////////////////////////////////////////////
179 //////////////////////////////////////////////////////////////////////
180
181 public void run ( )
182 //////////////////////////////////////////////////////////////////////
183 {
184 dateLabel.setText ( " " );
185
186 timeLabel.setText ( " " );
187
188 resizeDateText = ACTIVE_DATE_TEXT;
189
190 resizeTimeText = ACTIVE_TIME_TEXT;
191
192 resizeFonts ( );
193
194 Thread thread = Thread.currentThread ( );
195
196 try
197 {
198 while ( thread == this.thread )
199 {
200 String dateTime
201 = DateFormatLib.toIsoDateFormat ( new Date ( ) );
202
203 dateLabel.setText (
204 dateTime.substring ( 0, dateTime.length ( ) - 9 ) );
205
206 timeLabel.setText (
207 dateTime.substring ( dateTime.length ( ) - 8 ) );
208
209 thread.sleep ( 100 );
210 }
211 }
212 catch ( InterruptedException ex )
213 {
214 }
215 finally
216 {
217 dateLabel.setText ( " " );
218
219 timeLabel.setText ( " " );
220
221 resizeDateText = IDLE_DATE_TEXT;
222
223 resizeTimeText = IDLE_TIME_TEXT;
224
225 resizeFonts ( );
226
227 dateLabel.setText ( IDLE_DATE_TEXT );
228
229 timeLabel.setText ( IDLE_TIME_TEXT );
230 }
231 }
232
233 //////////////////////////////////////////////////////////////////////
234 // interface ComponentListener methods
235 //////////////////////////////////////////////////////////////////////
236
237 public void componentResized ( ComponentEvent componentEvent )
238 //////////////////////////////////////////////////////////////////////
239 {
240 resizeFonts ( );
241 }
242
243 public void componentHidden ( ComponentEvent componentEvent )
244 //////////////////////////////////////////////////////////////////////
245 {
246 }
247
248 public void componentMoved ( ComponentEvent componentEvent )
249 //////////////////////////////////////////////////////////////////////
250 {
251 }
252
253 public void componentShown ( ComponentEvent componentEvent )
254 //////////////////////////////////////////////////////////////////////
255 {
256 }
257
258 //////////////////////////////////////////////////////////////////////
259 //////////////////////////////////////////////////////////////////////
260
261 private synchronized void resizeFonts ( )
262 //////////////////////////////////////////////////////////////////////
263 {
264 resizeFont ( dateLabel, resizeDateText );
265
266 resizeFont ( timeLabel, resizeTimeText );
267 }
268
269 private synchronized void resizeFont (
270 Component component,
271 String text )
272 //////////////////////////////////////////////////////////////////////
273 {
274 Rectangle bounds = component.getBounds ( );
275
276 FontLib.setMaxFont (
277 component,
278 text,
279 FONT_NAME,
280 FONT_STYLE,
281 0.9 * bounds.width,
282 0.9 * bounds.height );
283 }
284
285 //////////////////////////////////////////////////////////////////////
286 //////////////////////////////////////////////////////////////////////
287 }