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


public class Gui {
	public static void main(String[] args) {
		JFrame win = new MainWin();
		win.setVisible(true);
	}
}

class MainWin extends JFrame implements ActionListener, FocusListener {
	private Container c = new Container();
	private PaintPanel painting = new PaintPanel();
	private JPanel controls = new JPanel();
	private String[] colorsLabel = {"red", "blue", "green", "yellow"};
	private Color[] colors = {Color.RED, Color.BLUE, Color.GREEN, Color.YELLOW};
	private JComboBox<String> combo = new JComboBox<String>(colorsLabel);
	private JLabel label = new JLabel("DIMEMSIONS");
	private JTextField width = new JTextField(3);
	private JTextField height = new JTextField(3);
	private int w;
	private int h;
	private JCheckBox ovale = new JCheckBox("Ovale");
	private JCheckBox rectangle = new JCheckBox("Rectangle");

	public MainWin() {
		setTitle("FIGURES");
		setSize(400, 250);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		c = getContentPane();
		c.setLayout(new BorderLayout());
		c.add(painting);
		c.add(controls, "South");
		combo.addActionListener(this);
		width.setText("400");
		width.addActionListener(this);
		width.addFocusListener(this);
		height.setText("250");
		height.addActionListener(this);
		height.addFocusListener(this);
		ovale.addActionListener(this);
		rectangle.addActionListener(this);
		controls.add(combo);
		controls.add(label);
		controls.add(width);
		controls.add(height);
		controls.add(ovale);
		controls.add(rectangle);
		
	}
	
	public void actionPerformed(ActionEvent ev) {
		Object source = ev.getSource();
		if (source == combo) {
			for (int i = 0; i < colors.length; i++) {
				if (combo.getSelectedItem() == colorsLabel[i])
					painting.setBackground(colors[i]);			
			}
		}
		if  (source == width || source == height)
			setPaintingSize();
		if (source == ovale) {			
			painting.setOvale(ovale.isSelected());
			painting.repaint();
		}
		if (source == rectangle) {
			painting.setRectangle(rectangle.isSelected());
			painting.repaint();
		}
	}
	
	public void focusGained(FocusEvent ev) {}

	public void focusLost(FocusEvent ev) {
		setPaintingSize();
	}
	
	private void setPaintingSize() {
		w = Integer.parseInt(width.getText());
		h = Integer.parseInt(height.getText());
		painting.repaint();
	}
	
	class PaintPanel extends JPanel {
		private boolean ovale = false;
		private boolean rectangle = false;
		
		public void paintComponent(Graphics g) {
			super.paintComponent(g);
			if (ovale) g.drawOval(80, 20, w, h);
			if (rectangle) g.drawRect(80, 20, w, h);
		}
		
		public void setOvale(boolean state) {
			ovale = state;
		}
		
		public void setRectangle(boolean state) {
			rectangle = state;
		}
	}
}