source/Utils/popup_callback.h

#ifndef POPUP_CALLBACK_CLASS
	#define POPUP_CALLBACK_CLASS

	class popupCallback;

	template <typename R, typename P1>	class popupCallbackFunction;

	class popupCallback{
	public:
		popupCallback(void){}
		~popupCallback(void){}

		virtual void bind(void* newFun) = 0;
		virtual bool call(void) = 0;
	};

	template <typename R, typename P1>
	class popupCallbackFunction : public popupCallback{
	protected:
		R (*fun)(P1);
		P1 param_1;
	public:
		popupCallbackFunction(void);
		popupCallbackFunction(void * newFun, P1 param);
		virtual void bind(void * newFun);
		virtual bool call(void);	
	};

	template<typename R,typename P1>
	popupCallbackFunction<R,P1>::popupCallbackFunction(void){
			this->fun = 0;
			this->param_1 = P1();
	};

	template<typename R,typename P1>
	popupCallbackFunction<R,P1>::popupCallbackFunction(void * newFun, P1 param){
			this->fun = static_cast< R(*)(P1)>(newFun);
			this->param_1 = param;
	};

	template<typename R,typename P1>
	void popupCallbackFunction<R,P1>::bind(void * newFun){
			this->fun = static_cast< R(*)(P1)>(newFun);
	};

	template<typename R,typename P1>
	bool popupCallbackFunction<R,P1>::call(void){
		return (bool)(this->fun)(this->param_1);
	}

	// no return type, one parameter
	template <typename P1>
	class popupCallbackFunction<void, typename P1> : public popupCallback{
	protected:
		void (*fun)(P1);
		P1 param_1;
	public:
		popupCallbackFunction(void);
		popupCallbackFunction(void * newFun, P1 param);
		virtual void bind(void * newFun);
		virtual bool call(void);	
	};

	template<typename P1>
	popupCallbackFunction<void,P1>::popupCallbackFunction(void){
			this->fun = 0;
			this->param_1 = P1();
	};

	template<typename P1>
	popupCallbackFunction<void,P1>::popupCallbackFunction(void * newFun, P1 param){
			this->fun = static_cast< void(*)(P1)>(newFun);
			this->param_1 = param;
	};

	template<typename P1>
	void popupCallbackFunction<void,P1>::bind(void * newFun){
			this->fun = static_cast< void(*)(P1)>(newFun);
	};


	template<typename P1>
	bool popupCallbackFunction<void,P1>::call(void){
		try { 
			(this->fun)(this->param_1);
		} catch (...) {
			return false;
		}
		return true;
	}

	// returns something, no parameter
	template <typename R>
	class popupCallbackFunction<typename R, void> : public popupCallback{
	protected:
		R (*fun)(void);
	public:
		popupCallbackFunction(void);
		popupCallbackFunction(void * newFun);
		virtual void bind(void * newFun);
		virtual bool call(void);	
	};

	template<typename R>
	popupCallbackFunction<R,void>::popupCallbackFunction(void){
			this->fun = 0;
	};

	template<typename R>
	popupCallbackFunction<R,void>::popupCallbackFunction(void * newFun){
			this->fun = static_cast< R(*)(void)>(newFun);
	};

	template<typename R>
	void popupCallbackFunction<R,void>::bind(void * newFun){
			this->fun = static_cast< R(*)(void)>(newFun);
	};

	template<typename R>
	bool popupCallbackFunction<R,void>::call(void){
		return (bool)(this->fun)();
	}


	//template<>
	//bool popupCallbackFunction<bool,void>::call(void){
	//	return (this->fun)();
	//}

	// no parameters/return types
	template <>
	class popupCallbackFunction<void, void> : public popupCallback{
	protected:
		void (*fun)(void);
	public:
		popupCallbackFunction(void){
			this->fun = 0;
		};
		popupCallbackFunction(void * newFun){
			this->fun = static_cast< void(*)(void)>(newFun);
		};
		virtual void bind(void * newFun){
			this->fun = static_cast< void(*)(void)>(newFun);
		};
		virtual bool call(void){
			try { 
				(this->fun)();
			} catch (...) {
				return false;
			}
			return true;
		};	
	};

	class popupCallbackLua : public popupCallback{
	protected:
		CHAR16 * functionName;
	public:
		popupCallbackLua(void);
		popupCallbackLua(CHAR16 * newFunctionName){
			this->functionName = newFunctionName;
		};
		virtual void bind(void * newFun){
			this->functionName = static_cast< CHAR16* >(newFun);
		};
		virtual bool call(void){
			return true;
		};	
	};

#endif