/**
 * Write a description of class LampuLL here.
 * Membuat GUI untuk framenya
 * @Ghifari Astaudi'Ukumullah
 * @19 Oktober 2020
 */
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

class LampuLL extends JPanel
{
    Color on; //set color on
    //inisiasi radius lingkaran rambu
    int jarak = 60;
    // jarak antar lingkaran
    int border = 16;
    boolean isON;

    LampuLL (Color color){
        on = color;
        isON = false;
    }

    public void turnON (boolean b){
        isON = b;
        repaint();
    }
    //kelas dimensi untuk mengukur object
    public Dimension getPreferredSize(){
        int ukuran = (2*jarak + 2*border);
        return new Dimension(ukuran,ukuran);
    }

    protected void paintComponent (Graphics grafik){
        //set background black
        grafik.setColor(Color.black);
        grafik.fillRect(0,0, getWidth(), getHeight());

        if (isON){
            grafik.setColor(on);
    }
        else {
            grafik.setColor(on.darker().darker().darker());
    }
    grafik.fillOval(border,border, 2*jarak, 2*jarak);
}
}