ENH: added AreAllAccepted method SuperElastix/SuperElastix#32

Modules/ComponentInterface/include/selxAccepting.h

@@ -31,15 +31,17 @@ class Accepting< >
 public:
 
   static unsigned int CountMeetsCriteria( const ComponentBase::InterfaceCriteriaType ) { return 0; }
-  int ConnectFromImpl( ComponentBase::Pointer other, const ComponentBase::InterfaceCriteriaType interfaceCriteria ) { return 0; } //no interface called interfacename ;
+  //no interface called interfacename ;
+  int ConnectFromImpl( ComponentBase::Pointer other, const ComponentBase::InterfaceCriteriaType interfaceCriteria ) { return 0; }
   InterfaceStatus CanAcceptConnectionFrom( ComponentBase::ConstPointer, const ComponentBase::InterfaceCriteriaType interfaceCriteria )
   {
     return InterfaceStatus::noaccepter;
   }
 
+  //Empty RestInterfaces does 0 successful connects ;
+  int ConnectFromImpl( ComponentBase::Pointer ) { return 0; }                                                                                   
 
-  int ConnectFromImpl( ComponentBase::Pointer ) { return 0; }                                                                                   //Empty RestInterfaces does 0 successful connects ;
-
+  bool AreAllAccepted() { return true; }
 protected:
 };
 
@@ -56,6 +58,8 @@ public:
 
   int ConnectFromImpl( ComponentBase::Pointer );
 
+  // Helper function by which a component can check if all its Accepting interfaces have been set after the handshakes
+  bool AreAllAccepted();
 protected:
 };
 } //end namespace selx

Modules/ComponentInterface/include/selxAccepting.hxx

@@ -108,5 +108,19 @@ Accepting< FirstInterface, RestInterfaces ... >::CountMeetsCriteria( const Compo
 {
   return Count< FirstInterface, RestInterfaces ... >::MeetsCriteria( interfaceCriteria );
 }
+
+template< typename FirstInterface, typename ... RestInterfaces >
+bool
+Accepting< FirstInterface, RestInterfaces ... >::AreAllAccepted()
+{
+  InterfaceAcceptor< FirstInterface > * acceptIF = (this);
+  if (acceptIF->isSet == false)
+  {
+    return false;
+  }
+  
+  return Accepting<RestInterfaces ...>::AreAllAccepted();
+}
+
 } //end namespace selx
 #endif // Accepting_hxx

Modules/ComponentInterface/include/selxInterfaceAcceptor.hxx

@@ -35,6 +35,7 @@ InterfaceAcceptor< InterfaceT >::Connect( ComponentBase::Pointer providerCompone
   }
   // connect value interfaces
   this->Set( providerInterface ); // due to the input argument being uniquely defined in the multiple inheritance tree, all versions of Set() are accessible at component level
+  this->isSet = true;
   return 1;
 }