cms/conient/PacketTimer.java

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2002 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

//---PACKAGE DECLARATION---
package uk.org.iscream.cms.conient;

//---IMPORTS---
import java.awt.Color;
import javax.swing.JProgressBar;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.BoxLayout;
import javax.swing.SwingUtilities;

/**
 * Shows a countdown timer for packet arrival times.
 * When constructed it takes an integer value relating
 * to the time in seconds between recieving packets.
 * 
 * This then displays a JProgress bar which updates at 
 * 10th of a second intervals.
 *
 * @author  $Author: tdb $
 * @version $Id: PacketTimer.java,v 1.8 2003/03/06 12:15:52 tdb Exp $
 */
public class PacketTimer extends JPanel implements Runnable {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.8 $";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

    /**
     * Constructs a new PacketTimer
     *
     * @param timeBetweenPackets the time in seconds between packet arrival
     */
    public PacketTimer(String name, int timeBetweenPackets) {
        _timeBetweenPackets = timeBetweenPackets * 1000;
        _progressBar = new JProgressBar(JProgressBar.HORIZONTAL, 0, _timeBetweenPackets);
        _barColour = _progressBar.getForeground();
        this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
        JLabel label = new JLabel(name);
        this.add(_progressBar);
        this.add(label);
    }

//---PUBLIC METHODS---
    
    /**
     * Updates the progress bar every 10th of a second.
     */
    public void run() {
        while(_running) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
            }
            
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    long t = _nextTime - System.currentTimeMillis();
                    if(t >= 0) {
                        _progressBar.setValue((int) t);
                    }
                    else {
                        _progressBar.setValue((int) (t*-1));
                        _progressBar.setForeground(Color.red);
                    }
                }
            });
        }
    }
    
    /**
     * Resets the progress bar.
     */
    public void reset() {
        _nextTime = System.currentTimeMillis() + _timeBetweenPackets;
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                _progressBar.setValue(_timeBetweenPackets);
                _progressBar.setForeground(_barColour);
            }
        });
    }
    
//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

    /**
     * Holds the time between packets as used internally by this class
     */
    private int _timeBetweenPackets;
    private long _nextTime;
    private Color _barColour;
    
    /**
     * Used to indicate the state of the thread
     */
    private boolean _running = true;
    
    private JProgressBar _progressBar;

//---STATIC ATTRIBUTES---

}
Revision:	1.9
Committed:	Sun Aug 1 10:40:07 2004 UTC (19 years, 9 months ago) by tdb
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.8:	+3 -3 lines
Error occurred while calculating annotation data.
Log Message:	Catch a lot of old URL's and update them. Also remove a couple of old files that aren't used.
#	Content
1	/*
2	* i-scream central monitoring system
3	* http://www.i-scream.org
4	* Copyright (C) 2000-2002 i-scream
5	*
6	* This program is free software; you can redistribute it and/or
7	* modify it under the terms of the GNU General Public License
8	* as published by the Free Software Foundation; either version 2
9	* of the License, or (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19	*/
20
21	//---PACKAGE DECLARATION---
22	package uk.org.iscream.cms.conient;
23
24	//---IMPORTS---
25	import java.awt.Color;
26	import javax.swing.JProgressBar;
27	import javax.swing.JPanel;
28	import javax.swing.JLabel;
29	import javax.swing.BoxLayout;
30	import javax.swing.SwingUtilities;
31
32	/**
33	* Shows a countdown timer for packet arrival times.
34	* When constructed it takes an integer value relating
35	* to the time in seconds between recieving packets.
36	*
37	* This then displays a JProgress bar which updates at
38	* 10th of a second intervals.
39	*
40	* @author $Author: tdb $
41	* @version $Id: PacketTimer.java,v 1.8 2003/03/06 12:15:52 tdb Exp $
42	*/
43	public class PacketTimer extends JPanel implements Runnable {
44
45	//---FINAL ATTRIBUTES---
46
47	/**
48	* The current CVS revision of this class
49	*/
50	public static final String REVISION = "$Revision: 1.8 $";
51
52	//---STATIC METHODS---
53
54	//---CONSTRUCTORS---
55
56	/**
57	* Constructs a new PacketTimer
58	*
59	* @param timeBetweenPackets the time in seconds between packet arrival
60	*/
61	public PacketTimer(String name, int timeBetweenPackets) {
62	_timeBetweenPackets = timeBetweenPackets * 1000;
63	_progressBar = new JProgressBar(JProgressBar.HORIZONTAL, 0, _timeBetweenPackets);
64	_barColour = _progressBar.getForeground();
65	this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
66	JLabel label = new JLabel(name);
67	this.add(_progressBar);
68	this.add(label);
69	}
70
71	//---PUBLIC METHODS---
72
73	/**
74	* Updates the progress bar every 10th of a second.
75	*/
76	public void run() {
77	while(_running) {
78	try {
79	Thread.sleep(100);
80	} catch (InterruptedException e) {
81	}
82
83	SwingUtilities.invokeLater(new Runnable() {
84	public void run() {
85	long t = _nextTime - System.currentTimeMillis();
86	if(t >= 0) {
87	_progressBar.setValue((int) t);
88	}
89	else {
90	_progressBar.setValue((int) (t*-1));
91	_progressBar.setForeground(Color.red);
92	}
93	}
94	});
95	}
96	}
97
98	/**
99	* Resets the progress bar.
100	*/
101	public void reset() {
102	_nextTime = System.currentTimeMillis() + _timeBetweenPackets;
103	SwingUtilities.invokeLater(new Runnable() {
104	public void run() {
105	_progressBar.setValue(_timeBetweenPackets);
106	_progressBar.setForeground(_barColour);
107	}
108	});
109	}
110
111	//---PRIVATE METHODS---
112
113	//---ACCESSOR/MUTATOR METHODS---
114
115	//---ATTRIBUTES---
116
117	/**
118	* Holds the time between packets as used internally by this class
119	*/
120	private int _timeBetweenPackets;
121	private long _nextTime;
122	private Color _barColour;
123
124	/**
125	* Used to indicate the state of the thread
126	*/
127	private boolean _running = true;
128
129	private JProgressBar _progressBar;
130
131	//---STATIC ATTRIBUTES---
132
133	}