Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 BSI Business Systems Integration AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/

import java.awt.Container;

import java.awt.KeyboardFocusManager;

import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;

import java.util.HashSet;

import javax.swing.InputMap;

import javax.swing.JComponent;

import javax.swing.KeyStroke;

public class Main {
    /**
     * install focus forward and backward
     */
    public static void installDefaultFocusHandling(Container c) {
        // focus TAB
        HashSet<KeyStroke> set = new HashSet<KeyStroke>(1);
        set.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
        c.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, set);

        // focus shift-TAB
        set = new HashSet<KeyStroke>(1);
        set.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_MASK));
        c.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, set);

        // make input map WHEN_FOCUSED non-empty for Focus Traversal policy to work
        // correctly
        if (c instanceof JComponent) {
            JComponent jc = (JComponent) c;
            InputMap inputMapWhenFocused = jc.getInputMap(JComponent.WHEN_FOCUSED);
            if (inputMapWhenFocused.size() == 0) {
                inputMapWhenFocused.put(KeyStroke.getKeyStroke(KeyEvent.VK_STOP, KeyEvent.KEY_TYPED),
                        "swingDummyFocusKey");
            }
        }
    }
}