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Re: Can you lock a dialog and continue?

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On 6/30/2017 13:34, Eric Douglas wrote:
> I want the user to wait, not the program.
> I want to be able to execute a background process which may take a minute, and update controls on the screen which may take a minute possibly a table with a lot of values, and not let the user interact until any of that is done, and display a message with JProgressBar while they wait.
> 

Use a modal dialog to stop user input.  Use a thread to do your work and 
then update your GUI/JProgressBar on the EDT.

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

public class test9 extends JFrame {
     private JProgressBar bar = new 
JProgressBar(SwingConstants.HORIZONTAL,0,10);

     public test9() {
         setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

         JButton start = new JButton("Start");
         start.addActionListener(event -> {
             JDialog dialog = new JDialog(this,true);
             dialog.addWindowListener(new WindowAdapter() {
                 public void windowOpened(WindowEvent we) {
                     new Thread(() -> {
                         int n = 0;
                         while (n < 11) {
                             int q = n;
                             EventQueue.invokeLater(() -> bar.setValue(q));
                             try { Thread.sleep(1000);
                             } catch (InterruptedException ie) { }
                             ++n;
                         }
                         dialog.dispose();
                     }).start();
                 }
             });
             dialog.add(bar,BorderLayout.CENTER);
             dialog.pack();
             dialog.setVisible(true);
         });
         add(start,BorderLayout.CENTER);
         pack();
         setVisible(true);
     }

     public static void main(String... args) {
         EventQueue.invokeLater(() -> new test9());
     }
}



-- 

Knute Johnson

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Thread

Can you lock a dialog and continue? Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 10:35 -0700
  Re: Can you lock a dialog and continue? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-06-30 14:24 -0400
  Re: Can you lock a dialog and continue? Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 11:34 -0700
    Re: Can you lock a dialog and continue? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2017-06-30 14:33 -0500
      Re: Can you lock a dialog and continue? Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 13:19 -0700
        Re: Can you lock a dialog and continue? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2017-06-30 15:35 -0500
          Re: Can you lock a dialog and continue? Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 13:56 -0700
        Re: Can you lock a dialog and continue? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2017-06-30 15:40 -0500
          Re: Can you lock a dialog and continue? Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 13:52 -0700
            Re: Can you lock a dialog and continue? Martin Gregorie <martin@address-in-sig.invalid> - 2017-06-30 21:14 +0000
            Re: Can you lock a dialog and continue? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-06-30 17:19 -0400

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