CountDown2
import java.applet.*;
import java.awt.*;
class ImageProviderException extends Exception
{
public ImageProviderException(String string)
{
super(string);
}
}
public class ImageProvider
{
private Applet applet;
private MediaTracker mediaTracker;
public ImageProvider(Applet applet)
{
this.applet=applet;
mediaTracker=new MediaTracker(applet);
}
public Image get(String filename) throws InterruptedException,ImageProviderException
{
Image image=applet.getImage(applet.getCodeBase(),filename);
mediaTracker.addImage(image,0);
mediaTracker.waitForAll();
if(mediaTracker.isErrorAny())
throw new ImageProviderException(filename);
return image;
}
public Image[] get(String filename[]) throws InterruptedException,ImageProviderException
{
Image[] image=new Image[filename.length];
for(int n=0;n<image.length;n++)
mediaTracker.addImage(image[n]=applet.getImage(applet.getCodeBase(),filename[n]),0);
mediaTracker.waitForAll();
if(mediaTracker.isErrorAny())
{
String filenameString="";
for(int n=0;n<image.length;n++)
filenameString+=filename[n]+" ";
throw new ImageProviderException(filenameString);
}
return image;
}
}
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