Re: how reapint JLabel

From:

Knute Johnson <nospam@rabbitbrush.frazmtn.com>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 14 Jun 2009 09:21:51 -0700

Message-ID:

<4a352352$0$30340$b9f67a60@news.newsdemon.com>

Rafal(sxat) wrote:

I can give you some skeleton for your application:
1/ put senFile in a Thread subclass
2/ create another Thread subclass like this:

class MonitorThread extends Thread {
public void run() {
    EventQueue.invokeLater(new Runnable() {
       // init on the EDT
       progress.setValue(0);

I make it... .. it works quite well, but update progress I am running in
timer because
Thread.sleep(100) resulted in a hung IE browser (applet)

I am setting delay on 1000 ms, but update but it does not perform the
equivalent time at 1 second and once every 5
how repaired it? Can anything changing priorities of threads?

Rf

package com.knutejohnson.components;

import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.util.*;
import javax.swing.*;

public class JTimeLabel extends JLabel implements ActionListener {
     private final SimpleDateFormat sdf;
     private final javax.swing.Timer timer = new
javax.swing.Timer(250,this);

     public JTimeLabel(String text, int horizontalAlignment, String
pattern) {
         super(text, horizontalAlignment);
         sdf = new SimpleDateFormat(pattern);
     }

     public JTimeLabel() {
         this("00:00:00",JLabel.CENTER,"HH:mm:ss");
     }

     public JTimeLabel(String text) {
         this(text,JLabel.CENTER,"HH:mm:ss");
     }

     public JTimeLabel(String text, int horizontalAlignment) {
         this(text,horizontalAlignment,"HH:mm:ss");
     }

     public void start() {
         timer.start();
     }

     public void stop() {
         timer.stop();
     }

     public void actionPerformed(ActionEvent ae) {
         setText(sdf.format(new Date()));
     }

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 JFrame f = new JFrame();
                 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 JTimeLabel tl = new JTimeLabel();
                 tl.setFont(new Font("Arial",Font.BOLD,32));
                 f.add(tl);
                 tl.start();
                 f.pack();
                 f.setVisible(true);
             }
         });
     }
}

--

Knute Johnson
email s/nospam/knute2009/

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