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/*
 * Copyright (c) 2008, 2014, Oracle and/or its affiliates.
 * All rights reserved. Use is subject to license terms.
 *
 * This file is available and licensed under the following license:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
 *  - Neither the name of Oracle Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package ensemble.samples.graphics2d.calc;

import javafx.event.EventHandler;
import javafx.scene.Parent;
import javafx.scene.input.MouseEvent;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.Text;

public class Key extends Parent {

    public enum Code {

        DIGIT_0(0, "0"), DIGIT_1(1, "1"), DIGIT_2(2, "2"), DIGIT_3(3, "3"),
        DIGIT_4(4, "4"), DIGIT_5(5, "5"), DIGIT_6(6, "6"), DIGIT_7(7, "7"),
        DIGIT_8(8, "8"), DIGIT_9(9, "9"), M_PLUS(10, "M+"), M_MINUS(11, "M-"),
        M(12, "M"), DIVIDE(13, "/"), MULTIPLY(14, "X"), ADD(15, "+"),
        SUBTRACT(16, "-"), EQUALS(17, "="), CLEAR(18, "C"), DECIMAL(19, ".");

        private String text;
        private int value;

        Code(int value, String text){
            this.value = value;
            this.text = text;
        }

        public String getText() {
            return text;
        }

        public int getValue() {
            return value;
        }

    }

    public static final double WIDTH = 50;
    public static final double HEIGHT = 37;
    private static final Stop[] CELL_STOPS = new Stop[]{new Stop(0, Color.GRAY), new Stop(0.5, Color.BLACK)};
    private static final LinearGradient CELL_FILL = new LinearGradient(0, 3, 0, 28, false, CycleMethod.NO_CYCLE, CELL_STOPS);
    private static final Stop[] CELL_SEL_STOPS = new Stop[]{new Stop(0, Color.BLACK), new Stop(0.3, Color.GRAY), new Stop(0.99, Color.BLACK)};
    private static final LinearGradient CELL_SEL_FILL = new LinearGradient(0, 0, 0, 28, false, CycleMethod.NO_CYCLE, CELL_SEL_STOPS);

    private Code code;

    private Rectangle background;
    private Text text;

    public Key(Code code) {
        this.code = code;
        init();
        getChildren().addAll(background, text);
    }

    private void init() {
        createBackground();
        createText();

        initListeners();
    }

    private void initListeners() {
        setOnMouseEntered((MouseEvent me) -> {
            background.setFill(CELL_SEL_FILL);
        });

        setOnMouseExited((MouseEvent me) -> {
            background.setFill(CELL_FILL);
        });
    }

    private void createBackground() {
        background = new Rectangle(WIDTH, HEIGHT);
        background.setFill(CELL_FILL);

    }

    private void createText() {
        text = new Text();
        text.setFont(new Font("Amble Bold Condensed", 12));
        text.setTranslateX(21);
        text.setTranslateY(17);
        text.setFill(Color.WHITE);
        text.setY(5);
        text.setText(code.getText());
    }

    public void setCellStroke(boolean selected) {
        background.setStroke(selected ? Color.WHITE : Color.TRANSPARENT);
    }

    public Code getCode() {
        return code;
    }
}