/*

 * Copyright (c) 2016, 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

 * @summary verify Arab Diacritic Positioning

 * @bug 8168759

 */

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.Rectangle;

import java.awt.font.FontRenderContext;

import java.awt.font.TextLayout;

import java.util.Locale;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.SwingUtilities;

import javax.swing.WindowConstants;

public class ArabicDiacriticTest {

    static final String SAMPLE =

     "\u0627\u0644\u0639\u064e\u0631\u064e\u0628\u0650\u064a\u064e\u0651\u0629";

    static final String STR1 = "\u0644\u0639\u064e\u0629";

    static final String STR2 = "\u0644\u0639\u0629";

    static JFrame frame;

    static final String FONT = "DejaVu Sans";

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

        showText(); // for a human

        measureText(); // for the test harness

        Thread.sleep(5000);

        frame.dispose();

    }

    static void showText() {

        SwingUtilities.invokeLater(() -> {

            frame = new JFrame();

            JLabel label = new JLabel(SAMPLE);

            Font font = new Font(FONT, Font.PLAIN, 36);

            label.setFont(font);

            frame.setLayout(new GridLayout(3,1));

            frame.add(label);

            label = new JLabel(STR1);

            label.setFont(font);

            frame.add(label);

            label = new JLabel(STR2);

            label.setFont(font);

            frame.add(label);

            frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

            frame.pack();

            frame.setLocationRelativeTo(null);

            frame.setVisible(true);

        });

    }

    static void measureText() {

        Font font = new Font(FONT, Font.PLAIN, 36);

        if (!font.getFamily(Locale.ENGLISH).equals(FONT)) {

            return;

        }

        FontRenderContext frc = new FontRenderContext(null, false, false);

        TextLayout tl1 = new TextLayout(STR1, font, frc);

        TextLayout tl2 = new TextLayout(STR2, font, frc);

        Rectangle r1 = tl1.getPixelBounds(frc, 0f, 0f);

        Rectangle r2 = tl2.getPixelBounds(frc, 0f, 0f);

        if (r1.height > r2.height) {

            System.out.println(font);

            System.out.println(r1);

            System.out.println(r2);

            throw new RuntimeException("BAD BOUNDS");

        }

    }

}