/** Overrides <code>Graphics.copyArea</code>. */
public void copyArea(int x, int y, int width, int height, int destX, int destY) {
if (debugLog()) {
info()
.log(
toShortString()
+ " Copying area from: "
+ new Rectangle(x, y, width, height)
+ " to: "
+ new Point(destX, destY));
}
graphics.copyArea(x, y, width, height, destX, destY);
}
public void update(double slowdown, double arrival) {
freeway.update(slowdown, arrival);
if (buffer == null) {
xsize = size().width;
ysize = size().height;
buffer = createImage(xsize, ysize);
}
Graphics bg = buffer.getGraphics();
freeway.paint(bg, row, XDOTDIST, DOTSIZE);
if (row < ysize - 2 * DOTSIZE + 1) row += DOTSIZE;
else {
bg.copyArea(0, DOTSIZE, xsize, ysize - DOTSIZE, 0, -DOTSIZE);
bg.clearRect(0, ysize - DOTSIZE, xsize, DOTSIZE);
}
bg.dispose();
repaint();
}
