Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2016 IBM Corporation and others. * * This program and the accompanying materials * are made available under the terms of the Eclipse Public License 2.0 * which accompanies this distribution, and is available at * https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.swt.snippets; /* * Control example snippet: prevent Tab from traversing out of a control * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */ import org.eclipse.swt.*; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; public class Snippet127 { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("Snippet 127"); shell.setLayout(new RowLayout()); Button button1 = new Button(shell, SWT.PUSH); button1.setText("Can't Traverse"); button1.addTraverseListener(e -> { switch (e.detail) { case SWT.TRAVERSE_TAB_NEXT: case SWT.TRAVERSE_TAB_PREVIOUS: { e.doit = false; } } }); Button button2 = new Button(shell, SWT.PUSH); button2.setText("Can Traverse"); shell.pack(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }