/**
* @param source
* @param oldScalarMap The previous ScalarMap of the ScalarMapAdapter. May be <code>null</code>.
* @return The controlling ScalarMapAdapter of the display.
* @throws RemoteException
* @throws VisADException
*/
protected final synchronized ScalarMapAdapter accept(
ScalarMapAdapter source, ScalarMap oldScalarMap) throws VisADException, RemoteException {
ScalarMapAdapter adapter;
if (oldScalarMap != null) {
adapter = (ScalarMapAdapter) map.get(oldScalarMap);
if ((adapter != null) && (adapter == source)) {
map.remove(oldScalarMap);
changed = true;
}
}
ScalarMap newScalarMap = source.getScalarMap();
adapter = (ScalarMapAdapter) map.get(newScalarMap);
if (adapter != null) {
source.duplicate(adapter);
} else {
adapter = source;
map.put(newScalarMap, source);
changed = true;
}
if (changed) {
updater.update();
}
return adapter;
}
