Java Tutorial/SWT/FocusEvent

Prevent Tab from traversing out of a control

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.TraverseEvent;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class ControlTabTransversing {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new RowLayout());
    
    Text text1 = new Text(shell, SWT.SINGLE|SWT.BORDER);
    text1.setText("Can"t Traverse");
    text1.addTraverseListener(new TraverseListener() {
      public void keyTraversed(TraverseEvent e) {
        switch (e.detail) {
        case SWT.TRAVERSE_TAB_NEXT:
        case SWT.TRAVERSE_TAB_PREVIOUS: {
          e.doit = false;
        }
        }
      }
    });
    Text text2 = new Text(shell, SWT.SINGLE|SWT.BORDER);
    text2.setText("Can Traverse");
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Set Tab list for focus transfer

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class TabListFocusTransfer {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new RowLayout());
    Button b1 = new Button(shell, SWT.PUSH);
    b1.setText("1");
    Button b2 = new Button(shell, SWT.RADIO);
    b2.setText("2");
    Button b3 = new Button(shell, SWT.RADIO);
    b3.setText("3");
    Button b4 = new Button(shell, SWT.RADIO);
    b4.setText("4");
    Button b5 = new Button(shell, SWT.PUSH);
    b5.setText("5");
    Control[] tabList1 = new Control[] { b2, b1, b3, b5, b4 };
    shell.setTabList(tabList1);
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}