package grafik.bildbearbeitung;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;

public class ManipulateImage {

    private static final long serialVersionUID = 1L;

    JPanel panel;

    JLabel label;

    ImageIcon icon;

    BufferedImage image;

    public ManipulateImage() {

        //processImage();
        makeImage();
        
        icon = new ImageIcon(image);
        label = new JLabel(icon);
        label.setBorder(new LineBorder(Color.WHITE));

        panel = new JPanel();
        panel.setLayout(new BorderLayout());
        panel.setBackground(Color.DARK_GRAY);
        panel.add(label, BorderLayout.CENTER);

        JFrame frame = new JFrame("Pixel manipulieren");
        frame.getContentPane().add(panel);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
    
    private void processImage(){
    	File file = new File("test.jpg");
        try {
            this.image = ImageIO.read(file);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    	
    	ColorModel model = image.getColorModel();
    	
    	WritableRaster raster = image.getRaster();
    	for(int i=0; i<image.getWidth(); i++){
    		for(int j=0; j<image.getHeight(); j++){
    			
    			Object dataAlt = raster.getDataElements(i, j, null);
    			int argbAlt = model.getRGB(dataAlt);
    			
    			Color c = new Color(argbAlt, true);
    			
    			int limit = 150, wert = 50;
    			
    			int r = (c.getRed() + limit) < 256 ? c.getRed() + wert : 255;
    			int g = (c.getGreen() + limit) < 256 ? c.getGreen() + wert : 255;
    			int b = (c.getBlue() + limit) < 256 ? c.getBlue() + wert : 255;
    			
    			Color cNeu = new Color(r, g, b);
    			
    			int argbNeu = cNeu.getRGB();
    			
    			Object dataNeu = model.getDataElements(argbNeu, null);
    			
    			raster.setDataElements(i, j, dataNeu);
    		}
    	}
    }
	
	private void makeImage(){
		int width = 200, height = 200;
		image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
		WritableRaster raster = image.getRaster();
		ColorModel model = image.getColorModel();
		
		Color c1 = Color.RED;
		int argb1 = c1.getRGB();
		Object data1 = model.getDataElements(argb1, null);
		
		Color c2 = Color.GRAY;
		int argb2 = c2.getRGB();
		Object data2 = model.getDataElements(argb2, null);
		for (int i = 0; i < width; i++) {
			for (int j = 0; j < height; j++) {
				raster.setDataElements(i, j, data1);
				if(i>50 && i<150 && j>50 && j<150){
					raster.setDataElements(i, j, data2);
				}
			}
		}
	}

    public static void main(String args[]) {
    	SwingUtilities.invokeLater(() -> new ManipulateImage());
    }
}