www.pudn.com > Nestopia137src.zip > NstApi.hpp

//////////////////////////////////////////////////////////////////////////////////////// 
// 
// Nestopia - NES/Famicom emulator written in C++ 
// 
// Copyright (C) 2003-2007 Martin Freij 
// 
// This file is part of Nestopia. 
// 
// Nestopia is free software; you can redistribute it and/or modify 
// it under the terms of the GNU General Public License as published by 
// the Free Software Foundation; either version 2 of the License, or 
// (at your option) any later version. 
// 
// Nestopia is distributed in the hope that it will be useful, 
// but WITHOUT ANY WARRANTY; without even the implied warranty of 
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
// GNU General Public License for more details. 
// 
// You should have received a copy of the GNU General Public License 
// along with Nestopia; if not, write to the Free Software 
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
// 
//////////////////////////////////////////////////////////////////////////////////////// 
 
#ifndef NST_API_H 
#define NST_API_H 
 
#ifndef NST_BASE_H 
#include "../NstBase.hpp" 
#endif 
 
#ifdef NST_PRAGMA_ONCE 
#pragma once 
#endif 
 
#ifndef NST_CALLBACK 
#define NST_CALLBACK NST_CALL 
#endif 
 
#if NST_MSVC >= 1200 
#pragma warning( push ) 
#pragma warning( disable : 4512 ) 
#endif 
 
namespace Nes 
{ 
	namespace Core 
	{ 
		class Machine; 
 
		template 
		class UserCallback 
		{ 
		public: 
 
			typedef void* UserData; 
			typedef T Function; 
 
		protected: 
 
			Function function; 
			UserData userdata; 
 
			UserCallback() 
			: function(0), userdata(0) {} 
 
		public: 
 
			void Set(Function f,UserData d) 
			{ 
				function = f; 
				userdata = d; 
			} 
 
			void Unset() 
			{ 
				function = 0; 
				userdata = 0; 
			} 
 
			void Get(Function& f,UserData& d) const 
			{ 
				f = function; 
				d = userdata; 
			} 
 
			bool IsSet() const 
			{ 
				return function; 
			} 
		}; 
	} 
 
	namespace Api 
	{ 
		class Base 
		{ 
		public: 
 
			typedef void* UserData; 
 
		protected: 
 
			Core::Machine& emulator; 
 
			Base(Core::Machine& e) 
			: emulator(e) {} 
		}; 
	} 
} 
 
#if NST_MSVC >= 1200 
#pragma warning( pop ) 
#endif 
 
#endif