final DiskManager manager = fileInfo.getDiskManager();
// we want to run through the image part once one the transition from with a disk manager (running)
// to without a disk manager (stopped) in order to clear the pieces view
boolean running = manager != null;
boolean hasGraphic = false;
Graphic graphic = cell.getGraphic();
if (graphic instanceof UISWTGraphic) {
Image img = ((UISWTGraphic) graphic).getImage();
hasGraphic = img != null && !img.isDisposed();
}
final boolean bImageBufferValid = (lastPercentDone == percentDone)