public Geopoint getDestinationCoords() {
        if (distanceDrawer != null) {
            return distanceDrawer.getDestinationCoords();
        } else {
            return null;
        }
    }
needed to provide current coordinates for distanceDrawer
called only in GooglePositionAndHistory
main/src/main/java/cgeo/geocaching/maps/google/v2/GoogleMapView.java