public void checkDirect() throws VisADException, RemoteException {
// realCheckDirect();
//
// must customize
setIsDirectManipulation(false);
DisplayImpl display = getDisplay();
link = getLinks()[0];
ref = link.getDataReference();
type = link.getType();
if (!(type instanceof TupleType) || !((TupleType) type).getFlat()) {
whyNotDirect = notFlatTupleType;
return;
}
flowToComponent = new int[] {-1, -1, -1};
directMap = new ScalarMap[] {null, null, null};
shadow = (ShadowTupleType) link.getShadow().getAdaptedShadowType();
DisplayTupleType[] tuples = {null};
whyNotDirect = findFlow(shadow, display, tuples, flowToComponent);
if (whyNotDirect != null) return;
if (coord == null) {
if (tuples[0] == null || flowToComponent[0] < 0 || flowToComponent[1] < 0) {
whyNotDirect = noFlow;
return;
}
} else {
if (tuples[0] == null || flowToComponent[1] < 0 || flowToComponent[2] < 0) {
whyNotDirect = noFlow;
return;
}
}
ShadowRealType[] components = shadow.getRealComponents();
for (int i = 0; i < components.length; i++) {
DisplayTupleType spatial_tuple = components[i].getDisplaySpatialTuple();
if (spatial_tuple != null && !Display.DisplaySpatialCartesianTuple.equals(spatial_tuple)) {
whyNotDirect = nonCartesian;
return;
}
}
// needs more, will find out when we write drag_direct
setIsDirectManipulation(true);
}
