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/*
 * Copyright (c) 2011, 2018, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.sun.glass.ui.mac;

import javafx.scene.image.WritableImage;
import javafx.scene.input.KeyCode;
import javafx.scene.input.MouseButton;
import javafx.scene.paint.Color;

import com.sun.glass.ui.Application;
import com.sun.glass.ui.GlassRobot;
import com.sun.glass.ui.Pixels;

/**
 * MacOSX platform implementation class for Robot.
 */
final class MacRobot extends GlassRobot {

    // TODO: get rid of native Robot object
    private long ptr;

    private native long _init();
    @Override
    public void create() {
        Application.checkEventThread();
        ptr = _init();
    }

    native private void _destroy(long ptr);
    @Override
    public void destroy() {
        Application.checkEventThread();
        if (ptr == 0) {
            return;
        }
        _destroy(ptr);
    }

    native protected void _keyPress(int code);
    @Override
    public void keyPress(KeyCode code) {
        Application.checkEventThread();
        _keyPress(code.getCode());
    }

    native protected void _keyRelease(int code);
    @Override
    public void keyRelease(KeyCode code) {
        Application.checkEventThread();
        _keyRelease(code.getCode());
    }

    native private void _mouseMove(long ptr, float x, float y);
    @Override
    public void mouseMove(double x, double y) {
        Application.checkEventThread();
        if (ptr == 0) {
            return;
        }
        _mouseMove(ptr, (float) x, (float) y);
    }

    native private void _mousePress(long ptr, int buttons);
    @Override
    public void mousePress(MouseButton... buttons) {
        Application.checkEventThread();
        if (ptr == 0) {
            return;
        }
        _mousePress(ptr, GlassRobot.convertToRobotMouseButton(buttons));
    }

    native private void _mouseRelease(long ptr, int buttons);
    @Override
    public void mouseRelease(MouseButton... buttons) {
        Application.checkEventThread();
        if (ptr == 0) {
            return;
        }
        _mouseRelease(ptr, GlassRobot.convertToRobotMouseButton(buttons));
    }

    native protected void _mouseWheel(int wheelAmt);
    @Override
    public void mouseWheel(int wheelAmt) {
        Application.checkEventThread();
        _mouseWheel(wheelAmt);
    }

    native private float _getMouseX(long ptr);
    @Override
    public double getMouseX() {
        Application.checkEventThread();
        if (ptr == 0) {
            return 0;
        }
        return _getMouseX(ptr);
    }

    native private float _getMouseY(long ptr);
    @Override
    public double getMouseY() {
        Application.checkEventThread();
        if (ptr == 0) {
            return 0;
        }
        return _getMouseY(ptr);
    }

    native protected int _getPixelColor(double x, double y);
    @Override
    public Color getPixelColor(double x, double y) {
        Application.checkEventThread();
        return GlassRobot.convertFromIntArgb(_getPixelColor(x, y));
    }

    native protected Pixels _getScreenCapture(int x, int y, int width, int height, boolean scaleToFit);
    @Override
    public WritableImage getScreenCapture(WritableImage image, double x, double y, double width,
                                          double height, boolean scaleToFit) {
        Application.checkEventThread();
        if (width <= 0) {
            throw new IllegalArgumentException("width must be > 0");
        }
        if (height <= 0) {
            throw new IllegalArgumentException("height must be > 0");
        }

        Pixels pixels;
        pixels = _getScreenCapture((int) x, (int) y, (int) width, (int) height, scaleToFit);
        return convertFromPixels(image, pixels);
    }
}