/**
* This class demonstrates ProgressBar
*/ public class ProgressBarExample { public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
// Create a smooth progress bar
ProgressBar pb1 = new ProgressBar(shell, SWT.HORIZONTAL | SWT.SMOOTH);
pb1.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
pb1.setMinimum(0);
pb1.setMaximum(30);
// Create an indeterminate progress bar
ProgressBar pb2 = new ProgressBar(shell, SWT.HORIZONTAL | SWT.INDETERMINATE);
pb2.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
// Start the first progress bar new LongRunningOperation(display, pb1).start();
shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}
/**
* This class simulates a long running operation
*/ class LongRunningOperation extends Thread { private Display display; private ProgressBar progressBar;
public void run() {
// Perform work here--this operation just sleeps for (int i = 0; i < 30; i++) { try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// Do nothing
}
display.asyncExec(new Runnable() { public void run() { if (progressBar.isDisposed()) return;
// Increment the progress bar
progressBar.setSelection(progressBar.getSelection() + 1);
}
});
}
}
}
