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/b20160425/Aufgabe3.java | 121 +++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100755 src/aufgaben/b20160425/Aufgabe3.java

(limited to 'src/aufgaben/b20160425/Aufgabe3.java')

diff --git a/src/aufgaben/b20160425/Aufgabe3.java b/src/aufgaben/b20160425/Aufgabe3.java
new file mode 100755
index 0000000..2a2b242
--- /dev/null
+++ b/src/aufgaben/b20160425/Aufgabe3.java
@@ -0,0 +1,121 @@
+package aufgaben.b20160425;
+
+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 javax.swing.JPanel;
+import javax.swing.JSpinner;
+import javax.swing.SpinnerNumberModel;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+import aufgaben.Aufgabe;
+import misc.Utils;
+
+public class Aufgabe3 extends Aufgabe {
+	
+	private final int width = 500, height = 500;
+	private boolean done = false;
+	private String name;
+	private BufferedImage image, todraw;
+	private JPanel panel;
+	private JSpinner spinner;
+	
+	public Aufgabe3() {
+		name = "Interpolation";
+		this.setSize(width, height);
+		this.setTitle(name);
+		this.addWindowListener(
+				new WindowAdapter() {
+					@Override
+					public void windowClosing(WindowEvent e) {
+						System.out.println("close");
+						done = true;
+					}
+				}
+		);
+		this.setLayout(null);
+	}
+
+	@Override
+	public boolean done() {
+		return done;
+	}
+
+	@Override
+	public String getName() {
+		return name;
+	}
+
+	@Override
+	public void init() {
+		panel = new JPanel(){
+			public void paint(Graphics g) {
+				if(todraw != null)
+					g.drawImage(todraw, 0, 0, this.getWidth(), this.getHeight(), this);
+			}
+		};
+		panel.setBounds(0, 100, width, height-100);
+		spinner = new JSpinner(new SpinnerNumberModel(0, 0, 100, 1));
+		spinner.setBounds(100, 50, 100, 20);
+		spinner.addChangeListener(new ChangeListener() {
+			public void stateChanged(ChangeEvent e) {
+				for(int x = 0; x<image.getWidth(); x++) {
+					for(int y = 0; y<image.getHeight(); y++) {
+						todraw.setRGB(x, y, getDurchschnitt(image, x, y, (int)spinner.getValue()).getRGB());
+					}
+				}
+				panel.repaint();
+			}
+		});
+		try {
+			image = ImageIO.read(new File("title.png"));
+			todraw = ImageIO.read(new File("title.png"));
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		this.add(panel);
+		this.add(spinner);
+	}
+	
+	private int getGrayValueImg(int x, int y) {
+		if(image == null) return -1;
+		Color c = new Color(image.getRGB(x, y));
+		if(c.getRed() == c.getGreen() && c.getRed() == c.getBlue())
+			return c.getRed();
+		return -1;
+	}
+	
+	private void setGrayValueImgProc(int x, int y, int gray) {
+		if(image == null)
+			System.out.println("err");
+		image.setRGB(x, y, new Color(gray, gray, gray).getRGB());
+	}
+	
+	private Color getDurchschnitt(BufferedImage image, int x, int y, int r) {
+		Color color;
+		int[] colori = new int[3];
+		int absoluteX = 0, absoluteY = 0, c = 0;
+		for(int x1 = (-1)*r; x1<=r; x1++) {
+			for(int y1 = (-1)*r; y1<=r; y1++) {
+				absoluteX = x+x1;
+				absoluteY = y+y1;
+				if(absoluteX >= 0 && absoluteX < image.getWidth() && absoluteY >= 0 && absoluteY < image.getHeight()) {
+					color = new Color(image.getRGB(absoluteX, absoluteY));
+					colori[0] += color.getRed();
+					colori[1] += color.getGreen();
+					colori[2] += color.getBlue();
+					c++;
+				}
+			}
+		}
+		return new Color(colori[0]/c, colori[1]/c, colori[2]/c);
+	}
+
+}
-- 
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