package com.company;

import java.awt.*;

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

public class kolos extends JFrame {
    int n = 10;
    int rr = 0;
    int gg = 0;
    int bb = 0;
    public MyComponent komponent;

    class MyComponent extends JComponent{

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            int szer = getWidth();
            int wys = getHeight();
            g.setColor(new Color(rr, gg, bb));

            g.drawLine(0, 0, szer/3, wys/3);
            g.drawLine(szer/3, wys/3, szer/3, wys*2/3);
            g.drawLine(szer/3, wys*2/3, szer*2/3, wys/3);
            g.drawLine(szer*2/3, wys/3, szer*2/3, wys*2/3);
            g.drawLine(szer*2/3, wys*2/3, szer, wys);

            for(int i = 0; i<n; i++){
                int x0 = szer*(i+1)/(n+1);
                if(x0<szer/3){
                    g.drawLine(x0, wys*(i+1)/(n+1), x0, 0);
                } else if(x0<szer*2/3){
                    g.drawLine(x0, 0, x0, wys-wys*(i+1)/(n+1));
                } else {
                    g.drawLine(x0, 0, x0, wys*(i+1)/(n+1));
                }
            }

            for(int i = 0; i<n; i++){
                int y0 = wys*(i+1)/(n+1);

                if(y0<wys/3){
                    g.drawLine(0, y0, szer*(i+1)/(n+1), y0);
                } else if (y0<wys*2/3) {
                    g.drawLine(0, y0, szer / 3, y0);
                    g.drawLine(szer - szer * (i + 1) / (n + 1), y0, szer * 2 / 3, y0);
                } else {
                    g.drawLine(0, y0, szer*(i+1)/(n+1), y0);
                }
            }

        }

    }

    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 MyComponent());
        JPanel panel = new JPanel();
        add(panel, BorderLayout.SOUTH);
        final JSlider slider1 = new JSlider(1, 100, n);
        slider1.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent arg0) {
                n = slider1.getValue();
                komponent.repaint();
            }
        });
        final JSlider slider2 = new JSlider(0, 255, rr);
        slider2.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent arg0) {
                rr = slider2.getValue();
                komponent.repaint();
            }
        });
        final JSlider slider3 = new JSlider(0, 255, gg);
        slider3.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent arg0) {
                gg = slider3.getValue();
                komponent.repaint();
            }
        });
        final JSlider slider4 = new JSlider(0, 255, bb);
        slider4.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent arg0) {
                bb = slider4.getValue();
                komponent.repaint();
            }
        });
        panel.add(slider1);
        panel.add(slider2);
        panel.add(slider3);
        panel.add(slider4);
        setVisible(true);
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                new kolos("kolokwium1");
            }
        });
    }

}