/**************************************************
*   Author: Morrison
*   Date:  09 Mar 2022
**************************************************/
import javafx.application.Application;
import javafx.application.Platform;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
public class Draw extends Application
{
    private Stage primary;
    private Color currentColor;
    private double currentSize;
    private Canvas canvas;
    public Draw()
    {
        this.currentColor = Color.BLACK;
        this.currentSize = 50;
        canvas = new Canvas(800, 500);
    }

    @Override
    public void init()
    {
    }

    @Override
    public void start(Stage primary)
    {
        this.primary = primary;
        BorderPane bp = new BorderPane();
        bp.setCenter(canvas);
        bp.setTop(buildMenus());
        primary.setScene(new Scene(bp));
        GraphicsContext pen = canvas.getGraphicsContext2D();
        pen.setFill(Color.RED);
        pen.fillRect(0,0,100,100);
        pen.setStroke(Color.BLUE);
        pen.strokeRect(200,200,50,50);
        pen.setFill(Color.GREEN);
        pen.fillOval(300,300, 100, 50);
        canvas.setOnMouseClicked( e ->
        {
            pen.setFill(currentColor);
            pen.fillRect(e.getX() - currentSize/2, e.getY() - currentSize/2, 
                currentSize, currentSize);
        });


        primary.show();
    }
    private MenuBar buildMenus()
    {
        MenuBar mbar = new MenuBar();
        Menu fileMenu = new Menu("File");
        Menu colorMenu = new Menu("Color");
        Menu sizeMenu = new Menu("Size");
        mbar.getMenus().addAll(fileMenu, colorMenu, sizeMenu);
        colorMenu.getItems().add(new ColorMenuItem("Red", Color.RED));
        colorMenu.getItems().add(new ColorMenuItem("Blue", Color.BLUE));
        colorMenu.getItems().add(new ColorMenuItem("Green", Color.GREEN));
        colorMenu.getItems().add(new ColorMenuItem("Yellow", Color.YELLOW));
        colorMenu.getItems().add(new ColorMenuItem("Dookbloo", Color.valueOf("#001A57")));
        sizeMenu.getItems().add(new SizeMenuItem(20));
        sizeMenu.getItems().add(new SizeMenuItem(50));
        sizeMenu.getItems().add(new SizeMenuItem(100));
        sizeMenu.getItems().add(new SizeMenuItem(200));
        MenuItem quitItem = new MenuItem("Quit");
        quitItem.setOnAction(e -> Platform.exit());
        MenuItem clearItem = new MenuItem("Clear");
        clearItem.setOnAction( e ->
        {
            pen.clearRect(0, 0, 
        });
        fileMenu.getItems().addAll(clearItem, quitItem);

        return mbar;
    }
    @Override
    public void stop()
    {
    }
    /******************* Aliens ********************/
    class ColorMenuItem extends MenuItem
    {
        Color color;
        public ColorMenuItem(String name, Color color)
        {
            super(name);
            this.color = color;
            setOnAction( e ->
            {
                currentColor = color;
            });
        }

    }
    class SizeMenuItem extends MenuItem
    {
        double size;
        public SizeMenuItem(double size)
        {
            super("" + size);
            this.size = size;
            setOnAction( e ->
            {
                currentSize = size;
            });
        }

    }
}