5 files changed, 28 insertions, 16 deletions
diff --git a/slicer/slicer/modelParts.cpp b/slicer/slicer/modelParts.cpp
index b53997e..9c2c6e9 100644
--- a/slicer/slicer/modelParts.cpp
+++ b/slicer/slicer/modelParts.cpp
@@ -3,12 +3,13 @@
 
 namespace Slicer {
 	const Metadata emptyMetadata;
+	static ClassNameMap names __attribute__((init_priority(209)));
+	static ClassRefMap refs __attribute__((init_priority(209)));
 
-	ClassNameMap * &
+	ClassNameMap *
 	classNameMap()
 	{
-		static ClassNameMap * refs = new ClassNameMap();
-		return refs;
+		return &names;
 	}
 
 	const std::string &
@@ -31,11 +32,10 @@ namespace Slicer {
 		return name;
 	}
 
-	ClassRefMap * &
+	ClassRefMap *
 	classRefMap()
 	{
-		static ClassRefMap * refs = new ClassRefMap();
-		return refs;
+		return &refs;
 	}
 
 	void
diff --git a/slicer/slicer/modelParts.h b/slicer/slicer/modelParts.h
index 59f12c7..c131dc8 100644
--- a/slicer/slicer/modelParts.h
+++ b/slicer/slicer/modelParts.h
@@ -89,9 +89,9 @@ namespace Slicer {
 	typedef boost::function<ModelPartPtr(void *)> ClassRef;
 	typedef boost::function<bool(HookCommonPtr)> HookFilter;
 	typedef std::map<std::string, ClassRef> ClassRefMap;
-	DLL_PUBLIC ClassRefMap * & classRefMap();
+	DLL_PUBLIC ClassRefMap * classRefMap();
 	typedef boost::bimap<std::string, std::string> ClassNameMap;
-	DLL_PUBLIC ClassNameMap * & classNameMap();
+	DLL_PUBLIC ClassNameMap * classNameMap();
 	typedef std::list<std::string> Metadata;
 	DLL_PUBLIC extern const Metadata emptyMetadata;
 
diff --git a/slicer/slicer/modelPartsTypes.cpp b/slicer/slicer/modelPartsTypes.cpp
index 7cf508e..e5744df 100644
--- a/slicer/slicer/modelPartsTypes.cpp
+++ b/slicer/slicer/modelPartsTypes.cpp
@@ -83,6 +83,20 @@ namespace Slicer {
 
 	ModelPartType ModelPartForComplexBase::GetType() const { return type; }
 	const ModelPartType ModelPartForComplexBase::type = mpt_Complex;
+	void ModelPartForComplexBase::registerClass(const std::string & className, const TypeId & typeName, const ClassRef & cr)
+	{
+		Slicer::classRefMap()->insert({ className, cr });
+		if (typeName) {
+			Slicer::classNameMap()->insert({ className, *typeName });
+		}
+	}
+	void ModelPartForComplexBase::unregisterClass(const std::string & className, const TypeId & typeName)
+	{
+		Slicer::classRefMap()->erase(className);
+		if (typeName) {
+			Slicer::classNameMap()->left.erase(className);
+		}
+	}
 
 	void ModelPartForEnumBase::OnEachChild(const ChildHandler &) { }
 	ChildRefPtr ModelPartForEnumBase::GetAnonChildRef(const HookFilter &) { return NULL; }
diff --git a/slicer/slicer/modelPartsTypes.h b/slicer/slicer/modelPartsTypes.h
index a1230e9..483d8a7 100644
--- a/slicer/slicer/modelPartsTypes.h
+++ b/slicer/slicer/modelPartsTypes.h
@@ -90,6 +90,10 @@ namespace Slicer {
 		public:
 			virtual ModelPartType GetType() const override;
 			static const ModelPartType type;
+
+		protected:
+			static void registerClass(const std::string & className, const TypeId & typeName, const ClassRef &);
+			static void unregisterClass(const std::string & className, const TypeId & typeName);
 	};
 
 	template<typename T>
diff --git a/slicer/slicer/modelPartsTypes.impl.h b/slicer/slicer/modelPartsTypes.impl.h
index d8d86bc..658e95b 100644
--- a/slicer/slicer/modelPartsTypes.impl.h
+++ b/slicer/slicer/modelPartsTypes.impl.h
@@ -307,19 +307,13 @@ namespace Slicer {
 	template<typename T>
 	void ModelPartForClass<T>::registerClass()
 	{
-		Slicer::classRefMap()->insert({ className, &ModelPartForClass<T>::CreateModelPart });
-		if (typeName) {
-			Slicer::classNameMap()->insert({ className, *typeName });
-		}
+		ModelPartForComplexBase::registerClass(className, typeName, &ModelPartForClass<T>::CreateModelPart);
 	}
 
 	template<typename T>
 	void ModelPartForClass<T>::unregisterClass()
 	{
-		Slicer::classRefMap()->erase(className);
-		if (typeName) {
-			Slicer::classNameMap()->left.erase(className);
-		}
+		ModelPartForComplexBase::unregisterClass(className, typeName);
 	}
 
 	template<typename T>