00001 /* +---------------------------------------------------------------------------+ 00002 | The Mobile Robot Programming Toolkit (MRPT) C++ library | 00003 | | 00004 | http://mrpt.sourceforge.net/ | 00005 | | 00006 | Copyright (C) 2005-2011 University of Malaga | 00007 | | 00008 | This software was written by the Machine Perception and Intelligent | 00009 | Robotics Lab, University of Malaga (Spain). | 00010 | Contact: Jose-Luis Blanco <jlblanco@ctima.uma.es> | 00011 | | 00012 | This file is part of the MRPT project. | 00013 | | 00014 | MRPT is free software: you can redistribute it and/or modify | 00015 | it under the terms of the GNU General Public License as published by | 00016 | the Free Software Foundation, either version 3 of the License, or | 00017 | (at your option) any later version. | 00018 | | 00019 | MRPT is distributed in the hope that it will be useful, | 00020 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 00021 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 00022 | GNU General Public License for more details. | 00023 | | 00024 | You should have received a copy of the GNU General Public License | 00025 | along with MRPT. If not, see <http://www.gnu.org/licenses/>. | 00026 | | 00027 +---------------------------------------------------------------------------+ */ 00028 #ifndef mrpt_TEnumType_H 00029 #define mrpt_TEnumType_H 00030 00031 #include <mrpt/utils/utils_defs.h> 00032 #include <mrpt/utils/stl_extensions.h> 00033 00034 namespace mrpt 00035 { 00036 namespace utils 00037 { 00038 /** Only specializations of this class are defined for each enum type of interest 00039 * \sa TEnumType 00040 */ 00041 template <typename ENUMTYPE> 00042 struct TEnumTypeFiller 00043 { 00044 typedef ENUMTYPE enum_t; 00045 static void fill(bimap<enum_t,std::string> &m_map); 00046 }; 00047 00048 00049 /** A helper class that can convert an enum value into its textual representation, and viceversa. */ 00050 template <typename ENUMTYPE> 00051 struct TEnumType 00052 { 00053 /** Gives the numerical name for a given enum text name \exception std::exception on unknown enum name */ 00054 static ENUMTYPE name2value(const std::string &name) 00055 { 00056 if (getBimap().empty()) TEnumTypeFiller<ENUMTYPE>::fill(getBimap()); 00057 return getBimap().inverse(name); 00058 } 00059 00060 /** Gives the textual name for a given enum value \exception std::exception on unknown enum value name */ 00061 static std::string value2name(const ENUMTYPE val) 00062 { 00063 if (getBimap().empty()) TEnumTypeFiller<ENUMTYPE>::fill(getBimap()); 00064 return getBimap().direct(val); 00065 } 00066 00067 /** Singleton access */ 00068 static inline bimap<ENUMTYPE,std::string> &getBimap() 00069 { 00070 static bimap<ENUMTYPE,std::string> data; 00071 return data; 00072 } 00073 }; 00074 00075 } // End of namespace 00076 } // end of namespace 00077 #endif
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