/*

 * 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 TestTabSize

 */

import java.awt.geom.Rectangle2D;

import javax.swing.GroupLayout;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.SwingUtilities;

import javax.swing.text.BadLocationException;

import javax.swing.text.Caret;

public class TestTabSize {

    private static JScrollPane jScrollPane1;

    private static JTextArea jTextArea1;

    private static JFrame f;

    private static Rectangle2D rect;

    private static Rectangle2D rect1;

    private static boolean excpnthrown = false;

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

        SwingUtilities.invokeAndWait(() -> {

            try {

                jScrollPane1 = new javax.swing.JScrollPane();

                jTextArea1 = new javax.swing.JTextArea();

                jTextArea1.setTabSize(8);

                f = new JFrame();

                jTextArea1.setFont(new java.awt.Font("Monospaced", 0, 10));

                String str =

                        "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#\n"

                        + "! Some Text\t\t\t\t\t#";

                jTextArea1.setText(str);

                jScrollPane1.setViewportView(jTextArea1);

                GroupLayout layout = new javax.swing.GroupLayout(f.getContentPane());

                f.getContentPane().setLayout(layout);

                layout.setHorizontalGroup(

                    layout.createParallelGroup(

                            javax.swing.GroupLayout.Alignment.LEADING)

                            .addGroup(layout.createSequentialGroup()

                                    .addContainerGap()

                                    .addComponent(jScrollPane1,

                                            javax.swing.GroupLayout.DEFAULT_SIZE,

                                            446, Short.MAX_VALUE)

                                    .addContainerGap())

                );

                layout.setVerticalGroup(

                        layout.createParallelGroup(

                                javax.swing.GroupLayout.Alignment.LEADING)

                                .addGroup(layout.createSequentialGroup()

                                        .addContainerGap()

                                        .addComponent(jScrollPane1)

                                        .addContainerGap())

                );

                f.pack();

                int first = str.indexOf("#");

                jTextArea1.setCaretPosition(first);

                Caret caret = jTextArea1.getCaret();

                rect = jTextArea1.modelToView2D(caret.getDot());

                System.out.println("caret x position " + rect.getX());

                jTextArea1.setCaretPosition(str.indexOf("#", first+1));

                caret = jTextArea1.getCaret();

                rect1 = jTextArea1.modelToView2D(caret.getDot());

                System.out.println("2nd caret x position " + rect1.getX());

            } catch (BadLocationException ex) {

                excpnthrown = true;

            } finally {

                f.dispose();

            }

        });

        if (excpnthrown) {

            throw new RuntimeException("BadLocationException thrown");

        }

        if ((int)rect.getX() != (int)rect1.getX()) {

            throw new RuntimeException("Tab width calculation wrong");

        }

    }

}