/*

 * Copyright (c) 2015, 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.

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 */

import java.awt.Dialog;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import javax.swing.UIManager;

 * @bug 8137571

 * @summary Linux HiDPI Graphics support

 * @author Alexander Scherbatiy

 * @requires (os.family == "linux" | os.family == "mac")

 * @run main/othervm -Dsun.java2d.uiScale.enabled=false

 *                   -Dsun.java2d.uiScale=2

 *                    HiDPIPropertiesUnixTest UISCALE_DISABLED

 * @run main/othervm -Dsun.java2d.uiScale.enabled=true

 *                   -Dsun.java2d.uiScale=3

 *                    HiDPIPropertiesUnixTest UISCALE_3

 * @run main/othervm -Dsun.java2d.uiScale=4

 *                    HiDPIPropertiesUnixTest UISCALE_4

 */

public class HiDPIPropertiesUnixTest {

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

        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

        String testCase = args[0];

        switch (testCase) {

            case "UISCALE_DISABLED":

                testScale(1.0, 1.0);

                break;

            case "UISCALE_3":

                testScale(3.0, 3.0);

                break;

            case "UISCALE_4":

                testScale(4.0, 4.0);

                break;

            default:

                throw new RuntimeException("Unknown test case: " + testCase);

        }

    }

    private static void testScale(double scaleX, double scaleY) {

        Dialog dialog = new Dialog((Frame) null, true) {

            @Override

            public void paint(Graphics g) {

                super.paint(g);

                AffineTransform tx = ((Graphics2D) g).getTransform();

                dispose();

                if (scaleX != tx.getScaleX() || scaleY != tx.getScaleY()) {

                    throw new RuntimeException(String.format("Wrong scale:"

                            + "[%f, %f] instead of [%f, %f].",

                            tx.getScaleX(), tx.getScaleY(), scaleX, scaleY));

                }

            }

        };

        dialog.setSize(200, 300);

        dialog.setVisible(true);

    }

}