public Iterator handlePixels(Image img, Rectangle rect) {
int x = rect.x;
int y = rect.y;
int w = rect.width;
int h = rect.height;
int[] pixels = new int[w * h];
PixelGrabber pg = new PixelGrabber(img, x, y, w, h, pixels, 0, w);
try {
pg.grabPixels();
} catch (InterruptedException e) {
System.err.println("interrupted waiting for pixels!");
return null;
}
if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
System.err.println("image fetch aborted or errored");
return null;
}
ArrayList tmpList = new ArrayList();
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
tmpList.add(handleSinglePixel(x + i, y + j, pixels[j * w + i]));
}
}
return tmpList.iterator();
}
