Add generic handlers

Former-commit-id: 8fc343d3a056de8031cf453748b8801d50d3710e
2016-03-31 21:14:22 +02:00
parent a2f6e54104
commit a77ad42fcb
16 changed files with 542 additions and 423 deletions
--- a/include/Nazara/Core/ObjectHandle.hpp
+++ b/include/Nazara/Core/ObjectHandle.hpp
@@ -0,0 +1,93 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_OBJECTHANDLE_HPP
+#define NAZARA_OBJECTHANDLE_HPP
+
+#include <Nazara/Core/Algorithm.hpp>
+#include <ostream>
+
+namespace Nz
+{
+	template<typename T> class HandledObject;
+
+	template<typename T>
+	class ObjectHandle
+	{
+		friend HandledObject<T>;
+
+		public:
+			ObjectHandle();
+			explicit ObjectHandle(T* object);
+			ObjectHandle(const ObjectHandle& handle);
+			~ObjectHandle();
+
+			T* GetObject() const;
+
+			bool IsValid() const;
+
+			void Reset(T* object = nullptr);
+			void Reset(const ObjectHandle& handle);
+
+			ObjectHandle& Swap(ObjectHandle& handle);
+
+			Nz::String ToString() const;
+
+			operator bool() const;
+			operator T*() const;
+			T* operator->() const;
+
+			ObjectHandle& operator=(T* object);
+			ObjectHandle& operator=(const ObjectHandle& handle);
+
+			static const ObjectHandle InvalidHandle;
+
+		protected:
+			void OnObjectDestroyed();
+			void OnObjectMoved(T* newObject);
+
+			T* m_object;
+	};
+
+	template<typename T> std::ostream& operator<<(std::ostream& out, const ObjectHandle<T>& handle);
+
+	template<typename T> bool operator==(const ObjectHandle<T>& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator==(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator==(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> bool operator!=(const ObjectHandle<T>& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator!=(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator!=(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> bool operator<(const ObjectHandle<T>& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator<(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator<(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> bool operator<=(const ObjectHandle<T>, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator<=(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator<=(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> bool operator>(const ObjectHandle<T>& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator>(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator>(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> bool operator>=(const ObjectHandle<T>& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator>=(const T& lhs, const ObjectHandle<T>& rhs);
+	template<typename T> bool operator>=(const ObjectHandle<T>& lhs, const T& rhs);
+
+	template<typename T> struct PointedType<ObjectHandle<T>> { typedef T type; };
+	template<typename T> struct PointedType<const ObjectHandle<T>> { typedef T type; };
+}
+
+namespace std
+{
+	template<typename T>
+	void swap(Nz::ObjectHandle<T>& lhs, Nz::ObjectHandle<T>& rhs);
+}
+
+#include <Nazara/Core/ObjectHandle.inl>
+
+#endif // NAZARA_OBJECTHANDLE_HPP