🚀 go-pugleaf

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import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.image.*;

public class WatFilter extends ImageFilter
{
        
        public static void main(String[] args) 
        {
                System.out.println("Hello World!");
        }


        int Count;
        int[] x = new int[Count];
        int[] y = new int[Count];
        public WatFilter(int n)
        {
                Count = (int)Math.pow((double)2,(double)n);
                int Size = (int)Math.pow((double)4,(double)(n-1));
                waterMark = new byte[Size];     
       /*
                initialize waterMark;
        ...........
       */
       //��waterMark��ֵ
        }
        public void setHints(int hints)
        {
        consumer.setHints(hints & ~(ImageConsumer.COMPLETESCANLINES + 
ImageConsumer
.TOPDOWNLEFTRIGHT));
        }
        public void setDimension(int width, int height)
        {
                consumer.setDimensions(width,height);
        }

        public void setPixels(int x, int y, int width, int height 
,ColorModel model
,byte[] pixels, int offset, int scansize)
        {
                byte[] waterMarkPixels = new byte[pixels.length];
                for (int i=0; i<Count; i++ )
                {
                        x[i] =(int)(i/Count)*width;
                        y[i] = (int)(i/Count)*height;
                }
                for (int i = 0; i < Count; i ++ )
                {
                        for (int j = 0; j < Count; j ++)
                        {
                                int rx = x[i];
                                int ry = y[j];

                                if ((waterMarkPixels[rx*height + ry] - 
waterMark[i*Count + j])%2!=0 )

                                {
                                        waterMarkPixels[rx*height + ry] = 
(byte)(waterMarkPixels[rx*height +
 ry] - 1);
                                }
                        }
                }
                consumer.setPixels(x, y, width, height, model, 
waterMarkPixels, 0, height
);
        }

        public void setPixels(int x, int y, int width, int height 
,ColorModel model
, int[] pixels, int offset, int scansize)
        {
                int[] waterMarkPixels = new int[pixels.length];
                for (int i=0; i<Count; i++ )
                {
                        x[i] = (i/Count)*width;
                        y[i] = (i/Count)*height;
                }
                for (int i = 0; i < Count; i ++ )
                {
                        for (int j = 0; j < Count; j ++)
                        {
                                int rx = x[i];
                                int ry = y[j];
                                if ((waterMarkPixels[rx*height + ry] - 
waterMark[i*Count + j])%2!=0 )

                                {
                                        waterMarkPixels[rx*height + ry] = 
waterMarkPixels[rx*height + ry] - 
1;
                                }
                        }
                }
                consumer.setPixels(x, y, width, height, model, 
waterMarkPixels, 0, height
);
        }
        private byte[] waterMark;
}

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