java百叶窗效果.docx

import java.awt.*;import java.applet.*;import java.io.*;import java.awt.image.*;public class Efficient extends Applet implements Runnable private Image img,showImage; private MediaTracker imageTracker; private int ImageW,ImageH,totalImage=5,currentImage,nextImage; private Thread thread; private int delay; private int totalPix,pix1,pix2,pix3,pix4,pix5,pixA,pixB; public void init() this.setBackground(Color.black); img=new ImagetotalImage; imageTracker=new MediaTracker(this); String s=new String(); for(int i=0; itotalImage; i+) s=getParameter(image + (i+1); imgi=getImage(getCodeBase(),s); imageTracker.addImage(imgi,0); try imageTracker.waitForID(0); catch(InterruptedException e) if(getParameter(delay)=null) delay=3000; else delay=Integer.parseInt(getParameter(delay); ImageW=img0.getWidth(this); ImageH=img0.getHeight(this); totalPix=ImageW*ImageH; pix1=new inttotalPix; PixelGrabber PG1=new PixelGrabber(img0,0,0,ImageW,ImageH,pix1,0,ImageW); try PG1.grabPixels(); catch(InterruptedException ex) pix2=new inttotalPix; PixelGrabber PG2=new PixelGrabber(img1,0,0,ImageW,ImageH,pix2,0,ImageW); try PG2.grabPixels(); catch(InterruptedException ex) pix3=new inttotalPix; PixelGrabber PG3=new PixelGrabber(img2,0,0,ImageW,ImageH,pix3,0,ImageW); try PG3.grabPixels(); catch(InterruptedException ex) pix4=new inttotalPix; PixelGrabber PG4=new PixelGrabber(img3,0,0,ImageW,ImageH,pix4,0,ImageW); try PG4.grabPixels(); catch(InterruptedException ex) pix5=new inttotalPix; PixelGrabber PG5=new PixelGrabber(img4,0,0,ImageW,ImageH,pix5,0,ImageW); try PG5.grabPixels(); catch(InterruptedException ex) currentImage=0; pixA=new inttotalPix; pixB=new inttotalPix; showImage=img0; thread=new Thread(this); thread.start(); public void paint(Graphics g) g.drawImage(showImage,0,0,this); public void update(Graphics g) paint(g); public void run() if(thread=null) thread=new Thread(this); thread.start(); while(true) try thread.sleep(delay); nextImage=(currentImage+1)%totalImage); if(currentImage=0) System.arraycopy(pix1,0,pixA,0,totalPix); System.arraycopy(pix2,0,pixB,0,totalPix); showImage=createImage(new MemoryImageSource(ImageW,ImageH,pixA,0,ImageW); repaint(); if(currentImage=1) System.arraycopy(pix2,0,pixA,0,totalPix); System.arraycopy(pix3,0,pixB,0,totalPix); showImage=createImage(new MemoryImageSource(ImageW,ImageH,pixA,0,ImageW); repaint(); if(currentImage=2) System.arraycopy(pix3,0,pixA,0,totalPix); System.arraycopy(pix4,0,pixB,0,totalPix); showImage=createImage(new MemoryImageSource(ImageW,ImageH,pixA,0,ImageW); repaint(); if(currentImage=3) System.arraycopy(pix4,0,pixA,0,totalPix); System.arraycopy(pix5,0,pixB,0,totalPix); showImage=createImage(new MemoryImageSource(ImageW,ImageH,pixA,0,ImageW); repaint(); if(currentImage=4) System.arraycopy(pix5,0,pixA,0,totalPix); System.arraycopy(pix1,0,pixB,0,totalPix); showImage=createImage(new MemoryImageSource(ImageW,ImageH,pixA,0,ImageW); repaint(); while(true) for(int i=0; i(int)(ImageH/10);i+) try thread.sleep(100); for(int j=0; jImageH; j+=(int)(ImageH/10) for(int k=0; kImageW; k+) pixAImageW*(j+i) + k=pixBImageW*(j+i) + k; catch(InterruptedExcepti