cascadefilterdemo.java

来自「java 完全探索的随书源码」· Java 代码 · 共 33 行

// CascadeFilterDemo.java

import java.awt.*;
import java.awt.image.*;
import java.applet.Applet;

public class CascadeFilterDemo extends Applet
{
   Image im, im2;

   public void init ()
   {
      im = getImage (getCodeBase (), "tiger.jpg");

      GrayFilter gf = new GrayFilter ();

      Image imTemp;
      imTemp = createImage (new FilteredImageSource (im.getSource (),
                                                     gf));

      NegativeFilter nf = new NegativeFilter ();

      im2 = createImage (new FilteredImageSource (imTemp.getSource (),
                                                  nf));
   }

   public void paint (Graphics g)
   {
      if (g.drawImage (im, 0, 0, this));
          g.drawImage (im2, im.getWidth (this), 0, this);
   }
}