question: protected void calculateDestination ( IFile uxf , ICompilationUnit referencingCompilationUnit , Destination dest ) throws CoreException { IFile uxfDest = calculateImgDestination ( uxf , referencingCompilationUnit ) ; if ( uxfDest != null ) { dest . imgFileDestination = uxfDest ; } }
target:  Calculate the destination of the given umlet diagram. Return null if the diagram reference does not need to be updated