package aufgaben.b20160413;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import aufgaben.Aufgabe;
import misc.Utils;

public class Aufgabe4 extends Aufgabe {
	
	private final int width = 500, height = 500;
	private boolean done = false;
	private String name;
	private BufferedImage image;
	private Color[][] pixels;
	
	public Aufgabe4() {
		name = "Graustufen";
		this.setSize(width, height);
		this.setTitle(name);
		this.addWindowListener(
				new WindowAdapter() {
					@Override
					public void windowClosing(WindowEvent e) {
						System.out.println("close");
						done = true;
					}
				}
		);
	}

	@Override
	public boolean done() {
		return done;
	}
	
	public void paint(Graphics g) {
		if(image != null)
			g.drawImage(image, 0, 100, 500, 300, this);
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public void init() {
		pixels = new Color[width][height];
		try {
			image = ImageIO.read(new File("title.png"));
			for(int x = 0, width = image.getWidth(); x<width; x++) {
				for(int y = 0, height = image.getHeight(); y<height; y++) {
					Color c = new Color(image.getRGB(x, y));
					int h = (int)(((double)(c.getRed()+c.getGreen()+c.getBlue())/765)*255);
					image.setRGB(x, y, new Color(h, h, h).getRGB());
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}