Construct an ImageView viewer, given a filename.
super("ImageView: " + s);
URL url = getClass().getResource(s);
// System.out.println(url);
im = Toolkit.getDefaultToolkit().getImage(url);
// ----- This part omitted from course notes for brevity -----
// Use a MediaTracker to show the "best"? way of waiting
// for an image to load, and how to check for errors.
MediaTracker mt = new MediaTracker(this);
mt.addImage(im, 0);
try {
mt.waitForID(0);
} catch(InterruptedException e) {
System.err.println("Unexpected interrupt in waitForID!");
return;
}
if (mt.isErrorID(0)) {
System.err.println("Couldn't load image file " + s);
return;
}
// Now that we know the image has been loaded,
// it is safe to take its width and height.
// ----- End of part omitted from course notes for brevity -----
width = im.getWidth(this);
height = im.getHeight(this);
setSize(width, height);
