From 84e220b332bfffb0f2dcc39b9697a6fd6691d265 Mon Sep 17 00:00:00 2001
From: Leonard Kugis <leonard@kug.is>
Date: Mon, 25 Apr 2022 18:36:30 +0200
Subject: Initial commit

---
 src/aufgaben/b20160413/Aufgabe4.java | 71 ++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100755 src/aufgaben/b20160413/Aufgabe4.java

(limited to 'src/aufgaben/b20160413/Aufgabe4.java')

diff --git a/src/aufgaben/b20160413/Aufgabe4.java b/src/aufgaben/b20160413/Aufgabe4.java
new file mode 100755
index 0000000..ad720b9
--- /dev/null
+++ b/src/aufgaben/b20160413/Aufgabe4.java
@@ -0,0 +1,71 @@
+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();
+		}
+	}
+
+}
-- 
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