private final int getHashCode() {
// 31 * x == (x << 5) - x
int hash = 31 + getId();
hash = ((hash << 5) - hash) + sizeAndRRate.hashCode();
hash = ((hash << 5) - hash) + getRotation();
return hash;
}
/**
* Compares {@link SizeAndRRate#compareTo(SizeAndRRate) sizeAndRRate} 1st, then {@link #rotation}.
*
* <p>Rotation is compared inverted, i.e. <code>360 - rotation</code>, so the lowest rotation
* reflects a higher value.
*
* <p>Order of comparing MonitorMode:
*
* <ul>
* <li>resolution
* <li>bits per pixel
* <li>flags
* <li>refresh rate
* <li>rotation
* </ul>
*
* {@inheritDoc}
*/
@Override
public int compareTo(final MonitorMode mm) {
final int c = sizeAndRRate.compareTo(mm.sizeAndRRate);
if (0 != c) {
return c;
}
final int trot = 360 - rotation; // normalize rotation
final int xrot = 360 - mm.rotation; // normalize rotation
if (trot > xrot) {
return 1;
} else if (trot < xrot) {
return -1;
}
return 0;
}
