package recct.Model;

import java.awt.Color;
import java.awt.geom.Rectangle2D;

// The model notifies the view when its state has changed.
public class Rectangle extends Rectangle2D.Double {

    private double x1;
    private double y1;
    private double w;
    private double h;
    private Color color;

    public double getX1() {
        return x1;
    }

    public void setX1(double x1) {
        this.x1 = x1;
    }

    public double getY1() {
        return y1;
    }

    public void setY1(double y1) {
        this.y1 = y1;
    }

    public double getW() {
        return w;
    }

    public void setW(double w) {
        this.w = w;
    }

    public double getH() {
        return h;
    }

    public void setH(double h) {
        this.h = h;
    }

    public Color getColor() {
        return color;
    }

    public void setColor(Color color) {
        this.color = color;
    }

    public Rectangle(double x1, double y1, double w, double h, Color color) {
        this.x1=x1;
        this.y1=y1;
        this.w=w;
        this.h=h;
        this.color = color;
    }

    @Override
    public String toString() {
        return "X1=" + String.valueOf(x1) +
                ", Y1=" + String.valueOf(y1) +
                ", w=" + String.valueOf(w) +
                ", h=" + String.valueOf(h) +
                ", color=" + String.valueOf(color.toString());
    }

 }

package recct;

import recct.Model.Rectangle;

import java.awt.*;
import java.awt.event.ActionListener;
import javax.swing.*;

enum Colors {
    RED,
    GREEN,
    BLUE,
    BLACK
}

// View hold the reference to controller
public class MainView extends JFrame {
    private JLabel firstPointX = new JLabel("Enter X coordinate of first point");
    private JTextField firstPointXt = new JTextField(10);
    private JLabel firstPointY = new JLabel("Enter Y coordinate of first point");
    private JTextField firstPointYt = new JTextField(10);
    private JLabel secondPointX = new JLabel("Enter X coordinate of second point");
    private JTextField secondPointXt = new JTextField(10);
    private JLabel secondPointY = new JLabel("Enter Y coordinate of second point");
    private JTextField secondPointYt = new JTextField(10);
    private JLabel rectangleColor = new JLabel("Enter Color");
    private JTextField rectangleColort = new JTextField(10);
    private JButton button = new JButton("Draw");

    public MainView() {
    }

    public void createGraphics() {
        JPanel panel = new JPanel();
        this.setTitle("Main");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
        this.setSize(200, 500);
        this.setLocationRelativeTo(null);
        this.setLayout(new GridBagLayout());
        this.setVisible(true);
        panel.add(firstPointX);
        panel.add(firstPointXt);
        panel.add(firstPointY);
        panel.add(firstPointYt);
        panel.add(secondPointX);
        panel.add(secondPointXt);
        panel.add(secondPointY);
        panel.add(secondPointYt);
        panel.add(rectangleColor);
        panel.add(rectangleColort);
        panel.add(button);
        //
        Rectangle rectangle = new Rectangle(0, 30, 0, 60, Color.BLACK);
        RectangleView rView = new RectangleView();
        this.add(panel, new GridBagConstraints(0, 0, 1, 1, 1, 1,GridBagConstraints.NORTH, GridBagConstraints.BOTH, new Insets(2, 2, 2, 2), 0, 0));
        AbstractAction action = new DrawRectangleAction(rectangle, this, rView);
        button.addActionListener(action);
    }

    public double getFirstPointX() {
        return Double.parseDouble(firstPointXt.getText());
    }

    public double getFirstPointY() {
        return Double.parseDouble(firstPointYt.getText());
    }

    public double getWidtht() {
        return Double.parseDouble(secondPointXt.getText())-getFirstPointX();
    }

    public double getHeightt() {
        return Double.parseDouble(secondPointYt.getText())-getFirstPointY();
    }

    public Color getColor() {

        Colors clr = Colors.valueOf(rectangleColort.getText().toUpperCase());

        switch (clr) {
            case RED: return Color.RED;
            case BLACK: return Color.BLACK;
            case BLUE: return Color.BLUE;
            case GREEN: return Color.GREEN;

            default: return Color.BLACK;
        }

    }

}

package recct;

import recct.Model.Rectangle;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


// The controller asks the model to change its state.
// The controller may also ask the view to change.
public class DrawRectangleAction extends AbstractAction {

    private Rectangle rectangle;
    private MainView mainView;
    private RectangleView rectView;

    public DrawRectangleAction(Rectangle rectangle, MainView mainView, RectangleView rectView) {
        this.rectangle = rectangle;
        this.mainView = mainView;
        this.rectView = rectView;
    }

    public void actionPerformed(ActionEvent event) {
        System.out.println("We are in action...");
        try {
            // We should update rectangle object here
            rectangle.setX1(mainView.getFirstPointX());
            rectangle.setY1(mainView.getFirstPointY());
            rectangle.setW(mainView.getWidtht());
            rectangle.setH(mainView.getHeightt());
            rectangle.setColor(mainView.getColor());
            System.out.println("Rectangle debug info:" + rectangle.toString());
            rectView.setRectangle(rectangle);
            rectView.init();
            rectView.setVisible(true);
            } catch (Exception ex) {
              ex.printStackTrace();
            }
    }

}

package recct;
import recct.Model.Rectangle;

import java.awt.*;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class RectangleView extends JPanel {

    private Rectangle rectangle;

    public void setRectangle(Rectangle rectangle) {this.rectangle = rectangle;}

    public void paint(Graphics g) {
        System.out.println("Drawing rectangle...");

        g.setColor(rectangle.getColor());
        g.fillRect((new Double(rectangle.getX1())).intValue(), (new Double(rectangle.getY1())).intValue(),
                (new Double(rectangle.getW())).intValue(), (new Double(rectangle.getH()).intValue()));

    }

    public void init() {
        JFrame frame = new JFrame("Pryamokutnyk");
        frame.add(this);
        frame.setSize(800, 700);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}

package recct;

import javax.swing.*;

public class Appl {
    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                MainView mainView = new MainView();
                mainView.createGraphics();
                mainView.setVisible(true);
            }
        });
    }
}