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 * Copyright (c) 2019, 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

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 */

/**

 * @test

 * @key headful

 * @bug 8226513

 * @summary JEditorPane is shown with incorrect size

 * @run main/othervm -Dsun.java2d.uiScale=1.0 JEditorPaneLayoutTest

 */

import javax.swing.JFrame;

import javax.swing.JEditorPane;

import javax.swing.SwingUtilities;

import javax.swing.text.BadLocationException;

import javax.swing.text.Document;

import javax.swing.text.html.HTMLEditorKit;

import java.awt.Dimension;

import java.awt.Robot;

public class JEditorPaneLayoutTest {

    public static final String TEXT =

                                "some text some text some text <br> some text";

    static JFrame frame;

    static JEditorPane editorPane;

    static Dimension size1;

    static Dimension size2;

    static Dimension size3;

    static Dimension size4;

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

        Robot robot = new Robot();

        SwingUtilities.invokeAndWait(() -> {

            frame = new JFrame();

            editorPane = new JEditorPane("text/html", TEXT);

            size1 = editorPane.getPreferredSize();

            editorPane.setText(TEXT);

            frame.add(editorPane);

            frame.pack();

            frame.setLocationRelativeTo(null);

            frame.setVisible(true);

        });

        robot.waitForIdle();

        robot.delay(300);

        SwingUtilities.invokeAndWait(() -> {

            size2 = editorPane.getSize();

            frame.dispose();

            frame = new JFrame();

            editorPane = new JEditorPane("text/html", TEXT);

            editorPane.getPreferredSize();

            editorPane.setText(TEXT);

            frame.add(editorPane);

            frame.setLocationRelativeTo(null);

            frame.setVisible(true);

        });

        robot.waitForIdle();

        robot.delay(300);

        if (!size1.equals(size2)) {

            SwingUtilities.invokeLater(frame::dispose);

            throw new RuntimeException("Wrong size " + size2 +

                    " expected " + size1);

        }

        SwingUtilities.invokeAndWait(() -> {

            editorPane.setText(TEXT);

            frame.pack();

            size3 = editorPane.getSize();

            frame.dispose();

            frame = new JFrame();

            editorPane = new JEditorPane("text/html", TEXT);

            editorPane.getPreferredSize();

            editorPane.setSize(1, 1);

            Document doc = new HTMLEditorKit().createDefaultDocument();

            try {

                doc.insertString(0, TEXT, null);

            } catch (BadLocationException e) {

                e.printStackTrace();

            }

            editorPane.setDocument(doc);

            editorPane.setText(TEXT);

            frame.add(editorPane);

            frame.pack();

            frame.setLocationRelativeTo(null);

            frame.setVisible(true);

        });

        robot.waitForIdle();

        robot.delay(300);

        if (!size1.equals(size3)) {

            SwingUtilities.invokeLater(frame::dispose);

            throw new RuntimeException("Wrong size " + size3 +

                    " expected " + size1);

        }

        SwingUtilities.invokeAndWait(() -> {

            size4 = editorPane.getSize();

            frame.dispose();

        });

        robot.waitForIdle();

        robot.delay(300);

        if (!size1.equals(size4)) {

            SwingUtilities.invokeLater(frame::dispose);

            throw new RuntimeException("Wrong size " + size4 +

                    " expected " + size1);

        }

    }

}