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Java example source code file (bug6607130.java)

This example Java source code file (bug6607130.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, awtexception, defaultcelleditor, defaulttablemodel, event, exception, first, gui, jcombobox, jframe, jtable, robot, runnable, runtimeexception, second, string, suntoolkit, swing, table

The bug6607130.java Java example source code

/*
 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* @test
 * @bug 6607130
 * @summary Checks that JComboBox cell editor is hidden if the same
 *          item is selected with keyboard.
 *          Also checks that JComboBox cell editor is hidden if F2 and then
 *          ENTER were pressed.
 * @author Mikhail Lapshin
 */

import sun.awt.SunToolkit;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.awt.event.KeyEvent;

public class bug6607130 {
    private JFrame frame;
    private JComboBox cb;
    private Robot robot;

    public static void main(String[] args) throws Exception {
        final bug6607130 test = new bug6607130();
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    test.setupUI();
                }
            });
            test.test();
        } finally {
            if (test.frame != null) {
                test.frame.dispose();
            }
        }
    }

    public bug6607130() throws AWTException {
        robot = new Robot();
    }

    private void setupUI() {
        frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        DefaultTableModel model = new DefaultTableModel(1, 1);
        JTable table = new JTable(model);

        cb = new JComboBox(new String[]{"one", "two", "three"});
        table.getColumnModel().getColumn(0).setCellEditor(new DefaultCellEditor(cb));
        frame.add(table);

        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    private void test() throws Exception {
        realSync();
        test1();
        realSync();
        checkResult("First test");
        test2();
        realSync();
        checkResult("Second test");
    }

    private void test1() throws Exception {
        // Select 'one'
        hitKey(KeyEvent.VK_TAB);
        realSync();
        hitKey(KeyEvent.VK_F2);
        realSync();
        hitKey(KeyEvent.VK_DOWN);
        realSync();
        hitKey(KeyEvent.VK_DOWN);
        realSync();
        hitKey(KeyEvent.VK_ENTER);
        realSync();

        // Select 'one' again
        hitKey(KeyEvent.VK_F2);
        realSync();
        hitKey(KeyEvent.VK_DOWN);
        realSync();
        hitKey(KeyEvent.VK_ENTER);
        realSync();
    }

    private void test2() throws Exception {
        // Press F2 and then press ENTER
        // Editor should be shown and then closed
        hitKey(KeyEvent.VK_F2);
        realSync();
        hitKey(KeyEvent.VK_ENTER);
        realSync();
    }

    private void checkResult(String testName) {
        if (!cb.isShowing()) {
            System.out.println(testName + " passed");
        } else {
            System.out.println(testName + " failed");
            throw new RuntimeException("JComboBox is showing " +
                    "after item selection.");
        }
    }

    private static void realSync() {
        ((SunToolkit) (Toolkit.getDefaultToolkit())).realSync();
    }

    public void hitKey(int keycode) {
        robot.keyPress(keycode);
        robot.keyRelease(keycode);
        delay();
    }

    private void delay() {
        try {
            Thread.sleep(1000);
        } catch(InterruptedException ie) {
            ie.printStackTrace();
        }
    }
}

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