Added ParameterList class

Former-commit-id: c592d0a09c33aa23b5efe635734c52b726364085

include/Nazara/Core/ParameterList.hpp

@@ -0,0 +1,94 @@
+// Copyright (C) 2014 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_PARAMETERLIST_HPP
+#define NAZARA_PARAMETERLIST_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/String.hpp>
+#include <atomic>
+#include <unordered_map>
+
+class NAZARA_API NzParameterList
+{
+	public:
+		using Destructor = void (*)(void* value);
+
+		NzParameterList() = default;
+		NzParameterList(const NzParameterList& list);
+		NzParameterList(NzParameterList&& list);
+		virtual ~NzParameterList();
+
+		void Clear();
+
+		bool GetBooleanParameter(const NzString& name, bool* succeeded = nullptr) const;
+		float GetFloatParameter(const NzString& name, bool* succeeded = nullptr) const;
+		int GetIntegerParameter(const NzString& name, bool* succeeded = nullptr) const;
+		nzParameterType GetParameterType(const NzString& name, bool* existing = nullptr) const;
+		void* GetPointerParameter(const NzString& name, bool* succeeded = nullptr) const;
+		NzString GetStringParameter(const NzString& name, bool* succeeded = nullptr) const;
+		void* GetUserdataParameter(const NzString& name, bool* succeeded = nullptr) const;
+
+		bool HasParameter(const NzString& name) const;
+
+		void RemoveParameter(const NzString& name);
+
+		void SetParameter(const NzString& name);
+		void SetParameter(const NzString& name, const NzString& value);
+		void SetParameter(const NzString& name, const char* value);
+		void SetParameter(const NzString& name, void* value);
+		void SetParameter(const NzString& name, void* value, Destructor destructor);
+		void SetParameter(const NzString& name, bool value);
+		void SetParameter(const NzString& name, float value);
+		void SetParameter(const NzString& name, int value);
+
+		NzParameterList& operator=(const NzParameterList& list);
+		NzParameterList& operator=(NzParameterList&& list);
+
+	private:
+		struct Parameter
+		{
+			struct UserdataValue
+			{
+				UserdataValue(Destructor Destructor, void* value) :
+				counter(1),
+				destructor(Destructor),
+				ptr(value)
+				{
+				}
+
+				std::atomic_uint counter;
+				Destructor destructor;
+				void* ptr;
+			};
+
+			nzParameterType type;
+			union Value
+			{
+				// On définit un constructeur/destructeur vide, permettant de mettre des classes dans l'union
+				Value() {}
+				Value(const Value&) {} // Placeholder
+				~Value() {}
+
+				bool boolVal;
+				float floatVal;
+				int intVal;
+				void* ptrVal;
+				NzString stringVal;
+				UserdataValue* userdataVal;
+			};
+
+			Value value;
+		};
+
+		using ParameterMap = std::unordered_map<NzString, Parameter>;
+
+		void DestroyValue(Parameter& parameter);
+
+		ParameterMap m_parameters;
+};
+
+#endif // NAZARA_PARAMETERLIST_HPP