filmtest.java

JAVA编程

/*
// header - edit "Data/yourJavaAppletHeader" to customize
// contents - edit "EventHandlers/Java Applet/onCreate" to customize
*/
import java.awt.*;
import java.net.*;
import java.awt.image.*;
public class FilmTest extends java.applet.Applet
{
	Image im,filter;
	int dim=6;
	int startX=10;
	int startY=10;
	FilmFilter ft;
	MediaTracker mt;
	public void init()
	{
		resize(800,300);
		mt=new MediaTracker(this);
		ft=new FilmFilter();
		try{
		    URL url=getClass().getResource("pic.jpg");
		    im=createImage((ImageProducer)(url.getContent()));
			FilteredImageSource fis=new FilteredImageSource(im.getSource(),ft);
			filter=createImage(fis);
			mt.addImage(im,0);
			mt.addImage(filter,1);
			mt.waitForID(0);
			mt.waitForID(1);
		}catch(Exception e){
			e.printStackTrace();
		}
	}

	public void paint(Graphics g)
	{
		g.drawImage(im,startX,startY,im.getWidth(this)/dim,im.getHeight(this)/dim,this);
		g.drawImage(filter,startX+im.getWidth(this)/dim+20,startY,filter.getWidth(this)/dim,filter.getHeight(this)/dim,this);
	}
}