/*
 * Copyright (c) 2017, 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 8187957
 * @summary  Verifies Tab Size works correctly in JTextArea
 * @run main/manual TestTabSize
 */
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;

public class TestTabSize { 
    public static void main(String[] args) throws Exception {

        final CountDownLatch latch = new CountDownLatch(1);
        TabTest test = new TabTest(latch);
        Thread T1 = new Thread(test);
        T1.start();

        // wait for latch to complete
        boolean ret = false;
        try {
            ret = latch.await(30, TimeUnit.SECONDS);
        } catch (InterruptedException ie) {
            throw ie;
        }
        if (!ret) {
            test.dispose();
            throw new RuntimeException(" User has not executed the test");
        }
        if (test.testResult == false) {
            throw new RuntimeException("TabSize not correct, alignemt issue");
        }
    }
}

class TabTest implements Runnable {
    static JFrame f;
    static JDialog dialog;
    public boolean testResult = false;
    private final CountDownLatch latch;
    private JScrollPane jScrollPane1; 
    private JTextArea jTextArea1;

    public TabTest(CountDownLatch latch) throws Exception {
        this.latch = latch;
    }

    @Override
    public void run() {
        try {
            createUI();
            tabTest();
        } catch (Exception ex) {
            dispose();
            latch.countDown();
            throw new RuntimeException("createUI Failed: " + ex.getMessage());
        }
    }

    public void dispose() {
        if (dialog != null) {
            dialog.dispose();
        }
        if (f != null) {
            f.dispose();
        }
    }

    private void tabTest() throws Exception {        
        f = new JFrame("");
        jScrollPane1 = new JScrollPane(); 
        jTextArea1 = new JTextArea(); 

        f.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

        jTextArea1.setFont(new java.awt.Font("Monospaced", 0, 10));         
        jTextArea1.setText("#################################################\n#"
                + " Some Text\t\t\t\t\t#\n# Some Other Much Longer Text\t\t\t#\n"
                + "#################################################"); 
        
        jScrollPane1.setViewportView(jTextArea1); 

        GroupLayout layout = new GroupLayout(f.getContentPane()); 
        f.getContentPane().setLayout(layout); 
        layout.setHorizontalGroup( 
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
            .addGroup(layout.createSequentialGroup() 
                .addContainerGap() 
                .addComponent(jScrollPane1, GroupLayout.DEFAULT_SIZE, 
                              446, Short.MAX_VALUE) 
                .addContainerGap()) 
        ); 
        layout.setVerticalGroup( 
            layout.createParallelGroup(GroupLayout.Alignment.LEADING) 
            .addGroup(layout.createSequentialGroup() 
                .addContainerGap() 
                .addComponent(jScrollPane1) 
                .addContainerGap()) 
        );
        f.pack(); 
        jTextArea1.setTabSize(8);
        f.setVisible(true);        
    }

    private void createUI() throws Exception {
        SwingUtilities.invokeAndWait(() -> {
            String description
                    = " INSTRUCTIONS:\n"
                    + " 3 lines of string ending with # will be shown.\n "
                    + " If there is no alignment issue of # character at "
                    + " end of string\n"
                    + " Press Pass else press Fail.";
            
            dialog = new JDialog();
            dialog.setTitle("textselectionTest");
            JTextArea textArea = new JTextArea(description);
            textArea.setEditable(false);
            final JButton passButton = new JButton("PASS");
            passButton.addActionListener((e) -> {
                testResult = true;
                dispose();
                latch.countDown();
            });
            final JButton failButton = new JButton("FAIL");
            failButton.addActionListener((e) -> {
                testResult = false;
                dispose();
                latch.countDown();
            });
            JPanel mainPanel = new JPanel(new BorderLayout());
            mainPanel.add(textArea, BorderLayout.CENTER);
            JPanel buttonPanel = new JPanel(new FlowLayout());
            buttonPanel.add(passButton);
            buttonPanel.add(failButton);
            mainPanel.add(buttonPanel, BorderLayout.SOUTH);
            dialog.add(mainPanel);
            dialog.pack();
            dialog.setVisible(true);
        });
    }
}