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//Damian Dyas L1 17.12.2018 spr1 Zad.4
package test;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class kolos extends JFrame {
	MojKomponent komponent;
	int n = 5;
	Color kolor = Color.BLACK;
	public class MojKomponent extends JComponent{

		@Override
		protected void paintComponent(Graphics g) {

			int w = getWidth();
			int h = getHeight();

			g.setColor(kolor);
			g.drawLine(w/2, 0, w/2, h);
			g.drawLine(0, h/2, w, h/2);
			g.drawLine(0, 0, w/2, h/2);
			g.drawLine(w, 0, w/2, h/2);
			g.drawLine(0, h/2, w/2, h);
			g.drawLine(w/2, h, w, h/2);

			for(int i=0;i<=n;i++){
				g.drawLine(w/2, h/2+i*h/n/2, i*w/2/n, h/2+i*h/n/2);
				g.drawLine(w/2+i*w/2/n, h, w/2+i*w/2/n, h-i*h/2/n);
				g.drawLine(w/2, h/2, w/2+i*w/2/n, 0);
				g.drawLine(w/2, h/2, i*w/2/n, 0);
			}

			super.paintComponent(g);
		}

	}

	public kolos(String string) {
		super(string);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		Toolkit kit = Toolkit.getDefaultToolkit();
		Dimension d = kit.getScreenSize();
		setBounds(d.width/4, d.height/4, d.width/2, d.height/2);
		add(komponent = new MojKomponent());

		//
		JPanel panelg = new JPanel(new BorderLayout());
		add(panelg,BorderLayout.SOUTH);

		JLabel labeln = new JLabel(" n");
		panelg.add(labeln,BorderLayout.WEST);


		final JLabel label2n = new JLabel(opisn());
		panelg.add(label2n,BorderLayout.EAST);


		final JSlider slider = new JSlider(1,50,n);
		panelg.add(slider);

		slider.addChangeListener(new ChangeListener() {
			@Override
			public void stateChanged(ChangeEvent e) {
				n = slider.getValue();
				label2n.setText(opisn());
				komponent.repaint();
			}
		});

		//kolorki
		JMenuBar mb = new JMenuBar();

		setJMenuBar(mb);
		JMenu m = new JMenu("kolor");
		mb.add(m);
		JMenuItem mi = new JMenuItem("czerwony");
		m.add(mi);

		mi.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				kolor=Color.RED;
				komponent.repaint();
			}
		});

		mi = new JMenuItem("niebieski");
		m.add(mi);

		mi.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				kolor=Color.BLUE;
				komponent.repaint();
			}
		});
		m.add(mi);

		mi = new JMenuItem("zielony");
		mi.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				kolor=Color.GREEN;
				komponent.repaint();
			}
		});
		m.add(mi);

		setVisible(true);

	}

	private String opisn() {
		return n+" ";
	}

	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			@Override
			public void run() {
				new kolos("Kreski");
			}
		});
	}

}