Prob with JProgressBar and JButton

Hi, hopefully someone can help me. I have an applet that does some stuff and when it starts the work, it creates a new JFrame with 2 progress bars (JProgressBar), an ok Jbutton and a cancel JButton. The progress bars update properly, thats not an issue, my problem is that when you click either of the buttons, they don't create an actionEvent until the work is completed, which is ok for the OK button but makes the cancel button pretty useless. I have tried suggested work arounds using SwingWorker and the event dispatching thread for similar probs other people have posted on here but with no success. I don't really know a lot about threads which doesn't really help!! Is it likely to be a thread problem or something to do with event queue which has also been suggested to me. Any help would be greatly appreciated.

public class ProgressDialog extends JDialog implements Runnable
private JProgressBar progressBar, totalBar;
private JButton ok, cancel;
public ProgressDialog()
setTitle(dialogTitle);
setBounds(350,300,300,120);
//setSize(300,100);
Container contentPane = getContentPane();
FlowLayout flow = new FlowLayout();
contentPane.setLayout(flow);
JLabel label1 = new JLabel(" Upload progress: ");
contentPane.add(label1);
progressBar = new JProgressBar(0,100);
progressBar.setValue(0);
progressBar.setStringPainted(true);
contentPane.add(progressBar);
JLabel label2 = new JLabel(" Total progress: ");
contentPane.add(label2);
totalBar = new JProgressBar();
totalBar.setValue(0);
totalBar.setStringPainted(true);
contentPane.add(totalBar);
ok = new JButton("OK");
ok.addActionListener(new ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
contentPane.add(ok);
cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
contentPane.add(cancel);
setVisible(true);
setResizable(false);
Thats near enough the whole class now. Thanks

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                //(new StringBuilder("CMS: ")).append(e.getMessage()).toString()});
        e.printStackTrace();
        //System.out.println("Form1 getDownloadFile() tama�o puente: " + puente.length);
        return puente;
    public void updateStatus(final int i){
        Runnable doSetProgressBarValue = new Runnable() {
            public void run() {
                progressBar.setValue(i);
        SwingUtilities.invokeLater(doSetProgressBarValue);
    public void startDownload() {
        System.out.println("Form1 Inicio startDownload()");
        System.out.println("Form1 Dentro de startDownload, antes de definir la subclase SwingWorker");
        System.out.println(done);
        worker = new SwingWorker() {
            public Object construct() {
                System.out.println("Form1 Dentro de startDownload, dentro de construct(), Antes de entrar en doWork()");
                return doWork();
            public void finished() {
                System.out.println("Form1 Dentro de startDownload, dentro de finished(), Antes de asignar done = true");
                System.out.println(done);
                done = true;
                System.out.println("Form1 Dentro de startDownload, dentro de finished(), Despu�s de asignar done = true");
                System.out.println(done);
                statusLabel.setText("Completado, tama�o del archivo: " + (byteArray.size() / 1024) + "KB");
        System.out.println("Form1 Dentro de startDownload, antes de worker.start()");
        worker.start();
        System.out.println("Form1 Dentro de startDownload, antes de salir de startDownload");
        System.out.println(done);
        System.out.println("Form1 Dentro de startDownload, despu�s de worker.start()");
     * M�todo doWork()
     * Este m�todo descarga por partes el archivo que es necesario descargar, adem�s de actualizar
     * la barra de carga del proceso de carga de la GUI.
    public Object doWork() {
        System.out.println("Form1 doWork() this.byteArray.size(): " + this.byteArray.size());
        try {
            byte buffer[] = new byte[1024];
            for(int c = 0; (c = this.file.read(buffer)) > 0;) {
                this.currentProgress++;
                updateStatus(this.currentProgress);
                this.byteArray.write(buffer, 0, c);
            this.byteArray.flush();
            this.file.close();
            this.currentProgress = totalCicles;
            updateStatus(this.currentProgress);
        } catch(IOException e) {
            e.printStackTrace();
        System.out.println("Form1 doWork() FINAL this.byteArray.size(): " + this.byteArray.size());
        //done = true;
        System.out.println("AHORA DONE = TRUE");
        return "Done";
    public boolean isDone() {
        return this.done;
FormularioApplet class (main)
package es.cambrabcn.signer.gui;
import java.awt.Color;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.security.Security;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.swing.SwingUtilities;
import netscape.javascript.JSObject;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import sun.security.provider.Sun;
import be.cardon.cryptoapi.provider.CryptoAPIProvider;
public class FormularioApplet extends java.applet.Applet {
    //Variables globales
    int paso = 0;
    private static final String JS_ONLOAD = "onLoad";
    private static final String JS_ONLOADERROR = "onLoadError";
    private static final int SIGNATURE_PDF = 1;
    private static final int SIGNATURE_XML = 2;
    //private String signButtonValue;
    private int signatureType;
    private String documentToSign;
    private String pdfSignatureField;
    private Vector<String> outputFilename;
    private Color appletBackground = new Color(255, 255, 255);
    private Vector<byte[]> ftbsigned;
     * Initializes the applet FormularioApplet
    public void init(){
        try {
            SwingUtilities.invokeLater(new Runnable() {
            //SwingUtilities.invokeAndWait(new Runnable() {
            //java.awt.EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    try{
                        readParameters();
                        initComponents();
                    catch(FileNotFoundException e){
                        javascript(JS_ONLOADERROR, new String[] {
                            (new StringBuilder("Init: ")).append(e.getMessage()).toString()});
                        e.printStackTrace();
                    catch(IOException e) {
                        javascript(JS_ONLOADERROR, new String[] {
                            (new StringBuilder("Init: ")).append(e.getMessage()).toString()});
                        e.printStackTrace();
        catch (Exception e) {
            javascript(JS_ONLOADERROR, new String[] {
                (new StringBuilder("Init: ")).append(e.getMessage()).toString()});
            e.printStackTrace();
        javascript(JS_ONLOAD, null);
    /** This method is called from within the init() method to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc=" C�digo Generado ">
    private void initComponents() {
        this.setSize(350, 450);
        appletPanel = new javax.swing.JPanel();
        jPanel1 = new javax.swing.JPanel();
        jTextField1 = new javax.swing.JLabel();
        jPanel2 = new javax.swing.JPanel();
        label = new javax.swing.JLabel();
        jPanel3 = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        setLayout(new java.awt.BorderLayout());
        appletPanel.setBackground(new java.awt.Color(255, 255, 255));
        appletPanel.setMaximumSize(new java.awt.Dimension(350, 430));
        appletPanel.setMinimumSize(new java.awt.Dimension(350, 430));
        appletPanel.setPreferredSize(new java.awt.Dimension(350, 430));
        jPanel1.setBackground(new java.awt.Color(255, 255, 255));
        jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 102, 204)));
        jTextField1.setFont(new java.awt.Font("Arial", 1, 18));
        jTextField1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jTextField1.setText("SIGNATURA ELECTRONICA");
        org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .add(jTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 308, Short.MAX_VALUE)
                .addContainerGap())
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .add(jTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 24, Short.MAX_VALUE)
                .addContainerGap())
        jPanel2.setBackground(new java.awt.Color(255, 255, 255));
        jPanel2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 102, 204)));
        label.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        label.setIcon(new javax.swing.ImageIcon("C:\\java\\workspaces\\cambrabcn\\firmasElectronicas\\logo.gif"));
        org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .add(label, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 308, Short.MAX_VALUE)
                .addContainerGap())
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .add(label)
                .addContainerGap(229, Short.MAX_VALUE))
        jPanel3.setBackground(new java.awt.Color(255, 255, 255));
        jPanel3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 102, 204)));
        //this.jButton1.setVisible(false);
        //this.jButton2.setVisible(false);
        jButton1.setText("Seg\u00fcent");
        jButton1.setAlignmentX(0.5F);
        //Cargamos el primer formulario en el JPanel2
        loadFirstForm();
        //Modificamos el texto del bot�n y el contador de pasos.
        //this.jButton1.setText("Siguiente");
        //this.jButton1.setVisible(true);
        //this.jButton2.setVisible(true);
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
        jButton2.setText("Cancel\u00b7lar");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
        org.jdesktop.layout.GroupLayout jPanel3Layout = new org.jdesktop.layout.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 94, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 112, Short.MAX_VALUE)
                .add(jButton2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 102, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .add(jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jButton2)
                    .add(jButton1))
                .addContainerGap())
        org.jdesktop.layout.GroupLayout appletPanelLayout = new org.jdesktop.layout.GroupLayout(appletPanel);
        appletPanel.setLayout(appletPanelLayout);
        appletPanelLayout.setHorizontalGroup(
            appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, appletPanelLayout.createSequentialGroup()
                .addContainerGap()
                .add(appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, jPanel3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap())
        appletPanelLayout.setVerticalGroup(
            appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, appletPanelLayout.createSequentialGroup()
                .addContainerGap()
                .add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jPanel3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        add(appletPanel, java.awt.BorderLayout.CENTER);
    }// </editor-fold>
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        this.destroy();
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        changeForms(this.paso);
    // Declaraci�n de variables - no modificar
    private javax.swing.JPanel appletPanel;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JLabel jTextField1;
    private javax.swing.JLabel label;
    // Fin de declaraci�n de variables
     * M�todo readParameters
     * M�todo que inicializa los valores de los par�metros internos, recibidos por par�metro.
    private void readParameters() throws FileNotFoundException, IOException {
         ???????????????? deleted for the forum
        addSecurityProviders();
     * M�tode loadFirstForm
     * Aquest m�tode carrega a jPanel2 el formulari que informa sobre la c�rrega dels arxius
    private void loadFirstForm(){
        //Form1 f1 = new Form1(stream, i + 1, fileURL.size(), sender.returnCurrentContentLength(), appletBackground);
        //Form1 f1 = new Form1(fileURL.size(), sender.returnCurrentContentLength());
        Form1 f1 = new Form1();
        //Lo dimensionamos y posicionamos
        f1.setSize(310, 150);
        f1.setLocation(10, 110);
        //A�adimos el formulario al JPanel que lo contendr�
        this.jPanel2.add(f1);
        //Validem i repintem el JPanel
        jPanel2.validate();
        jPanel2.repaint();
        //Descarreguem l'arxiu a signar
        *System.out.println("FormularioApplet Dentro de loadFirstForm(), antes de llamar a getDownloadFile()");*
        *byte obj[] = f1.getDownloadedFile(this.documentToSign);*
        if (obj == null){
            System.out.println("Lo que devuelve f1.getDownloadedFile(this.documentToSign) es NULL");
        else{
            System.out.println("Lo que devuelve f1.getDownloadedFile(this.documentToSign) NO es NULL");
            System.out.println("obj: " + obj.length);
        this.ftbsigned.add(obj);
        System.out.println("FormularioApplet Dentro de loadFirstForm(), despu�s de llamar a getDownloadFile()");
        //Indicamos que el primer paso ya se ha efectuado
        this.paso++;
     * M�tode changeForms
     * Aquest m�tode carrega a jPanel2 un formulari concret segons el valor de la variable global "paso"
    private void changeForms(int paso){
        /*A cada paso se cargar� en el JPanel y formulario diferente
         * Paso previo: Se realiza en la inicializaci�n, carga el formulario, descarga el archivo y muestra la barra de carga.
         * Case 1: Se carga el formulario de selecci�n de tipo de firma.
         * Case 2: Se carga el formulario de datos de la persona que firma.
        this.paso = paso;
        switch(paso){
            case 1:
                //Creamos un objeto de formulario (seleccion de tipo de firma)
                Form2 f2 = new Form2();
                //Lo dimensionamos y posicionamos
                f2.setSize(310, 185);
                f2.setLocation(10, 110);
                //Quitamos el formulario 1 y a�adimos el formulario 2 al JPanel
                this.jPanel2.remove(1);
                this.jPanel2.add(f2);
                //Validem i repintem el JPanel
                jPanel2.validate();
                jPanel2.repaint();
                //Modificamos el contador de pasos.
                this.paso++;
                break;
            case 2:
                //Creamos un objeto de formulario (seleccion de tipo de firma)
                Form3 f3 = new Form3();
                //Lo dimensionamos y posicionamos
                f3.setSize(310, 175);
                f3.setLocation(15, 130);
                //Quitamos el formulario 1 y a�adimos el formulario 3 al JPanel
                this.jPanel2.remove(1);
                this.jPanel2.add(f3);
                //Validem i repintem el JPanel
                jPanel2.validate();
                jPanel2.repaint();
                //Modificamos el texto del bot�n y el contador de pasos.
                this.jButton1.setText("Finalizar");
                this.paso++;
                break;
            default:
                //Finalizar el Applet
                //C�digo que se encargue de guardar el archivo en el disco duro del usuario
                break;
    private void addSecurityProviders() throws FileNotFoundException, IOException {
        Security.addProvider(new CryptoAPIProvider());
        if (signatureType == SIGNATURE_PDF) {
            Security.addProvider(new BouncyCastleProvider());
        else {
            Security.addProvider(new Sun());
    private File createOutputFile(String filename, int index) {
        return new File((String)outputFilename.get(index));
    protected Object javascript(String function, String args[]) throws RuntimeException {
        //Remove
        if (true) return null;
        try {
            Vector<String> list = new Vector<String>();
            if(args != null) {
                for(int i = 0; i < args.length; i++) {
                    list.addElement(args);
if(list.size() > 0) {
Object objs[] = new Object[list.size()];
list.copyInto(objs);
return JSObject.getWindow(this).call(function, objs);
} catch(UnsatisfiedLinkError e) {
e.printStackTrace();
throw new RuntimeException((new StringBuilder()).append(e).append("\nFunci�: ").append(function).toString());
} catch(Throwable e) {
e.printStackTrace();
throw new RuntimeException((new StringBuilder()).append(e).append("\nFunci�: ").append(function).toString());
return JSObject.getWindow(this).call(function, new Object[0]);
Edited by: Kefalegereta on Oct 31, 2007 3:54 AM
Edited by: Kefalegereta on Oct 31, 2007 4:00 AM

Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Airport connection probs with Mac Pro and 10.4.8 too.

This prob is not just related to iMacs or MacBooks as published in the knowledge base doc. I have exactly the same prob with my 2.66 GHz Mac Pro. I have to reconnect this beast to my wlan router manually every time.
PLZ Apple fix this asap!

I had a similar problem which I've fixed!
I have four machines here which can connect to my Netgear DG834N via Aiport. (I say can because they normally connect via ethernet.) My MacBook Pro always used to be fine when connected wirelessly but recently, not aware of any changes I've made, it connects for about 10 seconds then disconnects. All other machines are fine and hold the connection.
This is what I tried before finding my solution:
1) Deleted all references to the network in the keychain and remade them.
2) Created another user to try
3) Changed channels on the router even though I can't see any neighbour's networks.
4) Made sure computer and router were up to date with firmware/software.
I'm assuming that it has to be a computer problem as the PowerMac, iMac and iPod Touch have no issues at all. However, the cure was in the router.
I run with SSID broadcast turned off, WPA2 encryption and MAC address filtering. Allowing broadcast of the SSID cures my problem. Turn it off and the computer connects then drops it ten seconds later. Turn broadcast on and it maintains the connection. I've tried it all afternoon, leaving it connected for about 30 minutes at a time before turning SSID broadcast off again. Works every time! Broadcast SSID - fine, no broadcast - drops after ten seconds.
Now, if only I knew why! And why only the laptop?

I Was trying to update my apps, then i got an alert that said sign in required. I pressed continue, then it took me to my acct settings and it said there was a prob with my previous purchase and I havent purchased anything???

I Was trying to update my apps when i got a sign in required alert,
i signed in and it took me to my account settings ]it said there was a prob with a previous purchase and i havent purchased anything?

http://support.apple.com/kb/ht1808

Prob with JProgressBar and JButton

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