BusyIndicatorDemo.java Source code

Introduction

Here is the source code for BusyIndicatorDemo.java

Source

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class BusyIndicatorDemo {
    // The amount of time to sleep (in ms)
    private static final int SLEEP_TIME = 3000;

    // Labels for the button
    private static final String RUN = "Press to Run";

    private static final String IS_RUNNING = "Running...";

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("BusyIndicator Test");

        shell.setLayout(new FillLayout());
        final Button button = new Button(shell, SWT.PUSH);
        button.setText(RUN);
        button.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                // Change the button's text
                button.setText(IS_RUNNING);

                // Show the busy indicator
                BusyIndicator.showWhile(button.getDisplay(), new SleepThread(SLEEP_TIME));
                // Thread has completed; reset the button's text
                button.setText(RUN);
            }
        });

        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();

    }
}

class SleepThread extends Thread {
    private long ms;

    public SleepThread(long ms) {
        this.ms = ms;
    }

    public void run() {
        try {
            sleep(ms);
        } catch (InterruptedException e) {
        }
    }
}