/*

 * 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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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 */

package sun.java2d.macos;

import java.security.PrivilegedAction;

public class MacOSFlags {

    /**

     * Description of command-line flags.  All flags with [true|false]

     * values

     *      metalEnabled: usage: "-Dsun.java2d.metal=[true|false]"

     */

    private static boolean metalEnabled;

    static {

        initJavaFlags();

        initNativeFlags();

    }

    private static native boolean initNativeFlags();

    private static boolean getBooleanProp(String p, boolean defaultVal) {

        String propString = System.getProperty(p);

        boolean returnVal = defaultVal;

        if (propString != null) {

            if (propString.equals("true") ||

                propString.equals("t") ||

                propString.equals("True") ||

                propString.equals("T") ||

                propString.equals("")) // having the prop name alone

            {                          // is equivalent to true

                returnVal = true;

            } else if (propString.equals("false") ||

                       propString.equals("f") ||

                       propString.equals("False") ||

                       propString.equals("F"))

            {

                returnVal = false;

            }

        }

        return returnVal;

    }

    private static boolean getPropertySet(String p) {

        String propString = System.getProperty(p);

        return (propString != null) ? true : false;

    }

    private static void initJavaFlags() {

        java.security.AccessController.doPrivileged(

                (PrivilegedAction<Object>) () -> {

                    metalEnabled = getBooleanProp("sun.java2d.metal", false);

                    return null;

                });

    }

    public static boolean isMetalEnabled() {

        return metalEnabled;

    }

}