package tps.tp2.pack1Recursive;

import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;

/**
 * Print recursive squares painting
 *
 */
public class P03Squares {

    public static Color BACKGROUNDCOLOR = new Color(0, 0, 150);
    public static Color FOREGROUNDCOLOR = new Color(255, 180, 0);

    // Padrao = 5, alterado
    public static int DEEP = 5;

    /**
     * Build the frame and shows it
     */
    public P03Squares(int deep) {

        // the frame and title
        JFrame frame = new JFrame();
        frame.setTitle("...: Recursive Squares with deep " + deep + " :...");

        // Dispose frame on click on close button
        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

        // set size and center frame on screen
        frame.setSize(400, 400);
        frame.setLocationRelativeTo(null);

        // add print area occupying all the frame content area
        frame.add(new PrintArea(deep));

        // put frame visible
        frame.setVisible(true);
    }

    /**
     * Main method
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                // launch for 1 to DEEP squares frames
                for (int i = DEEP; i >= 1; --i) {
                    // build a new object each time: objects will run
                    // independently
                    new P03Squares(i);
                }

            }
        });
    }
}

/**
 * Our print area is, in fact, a label extended with the paint squares behavior
 */
class PrintArea extends JLabel {
    private static final long serialVersionUID = 1L;

    // local deep variable, will keep the registered deep for this the print
    // area
    int deep;

    /**
     * constructor
     */
    public PrintArea(int deep) {
        // call super, that is JLabel, constructor
        super();

        // set background color and set as well opaque to allow the background
        // to be visible
        setBackground(P03Squares.BACKGROUNDCOLOR);
        setOpaque(true);

        // save the deep
        this.deep = deep;
    }

    /**
     * paint method, called by JVM, when it is needed to update the PrintArea
     */
    public void paint(Graphics g) {
        // call paint from the JLABEL, draws the background of the PrintArea
        super.paint(g);

        // set drawing color
        g.setColor(P03Squares.FOREGROUNDCOLOR);

        // call the amazing print square method
        int n = printSquares(g, 0, 0, getWidth(), getHeight(), this.deep);

        // put to the world how much squares we printed
        System.out.println("Deep = " + deep + ", squares painted: " + n);
    }

    /**
     * Auxiliary method that will to the work. It must print a square with 1/3
     * of the length of the frame and at the center and if not the bottom level
     * ask to do the same for each of the other 8 square with 1/3 of length but
     * called with the new deep
     */
    private int printSquares(Graphics g, int xi, int yi, int width, int height, int currentDeep) {

        // TODO
        // dummy rectangle
        // initX, initY, width, height

        //Quadrado central
        int newWidth = width / 3;
        int newHeight = height / 3;
        int x = (width / 3) + xi / 3;
        int y = (height / 3) + yi / 3;
        g.fillRect(x, y, newWidth, newHeight);

        int smallerWidth = newWidth / 3;
        int smallerHeight = newHeight / 3;

        int sX = 0;
        int sY = 0;
        if (currentDeep > 1) {
            for (int i = 0; i < 3; i++) {
                sX = width / 9 + (i * 3 * (width / 9));
                sY = height / 9;
                g.fillRect(sX, sY, smallerWidth, smallerHeight);
                for (int j = 0; j < 3; j++) {
                    sY = height / 9 + (j * 3 * (height / 9));
                    g.fillRect(sX, sY, smallerWidth, smallerHeight);
                }
            }
            return 1 + printSquares(g, sX, sY, newWidth, newHeight, currentDeep - 1);
        } else
            return 1;
    }
}