BuildType.hpp

00001 /***************************************************************************
00002   tag: Peter Soetens  Mon Jun 26 13:25:56 CEST 2006  BuildType.hpp
00003 
00004                         BuildType.hpp -  description
00005                            -------------------
00006     begin                : Mon June 26 2006
00007     copyright            : (C) 2006 Peter Soetens
00008     email                : peter.soetens@fmtc.be
00009 
00010  ***************************************************************************
00011  *   This library is free software; you can redistribute it and/or         *
00012  *   modify it under the terms of the GNU General Public                   *
00013  *   License as published by the Free Software Foundation;                 *
00014  *   version 2 of the License.                                             *
00015  *                                                                         *
00016  *   As a special exception, you may use this file as part of a free       *
00017  *   software library without restriction.  Specifically, if other files   *
00018  *   instantiate templates or use macros or inline functions from this     *
00019  *   file, or you compile this file and link it with other files to        *
00020  *   produce an executable, this file does not by itself cause the         *
00021  *   resulting executable to be covered by the GNU General Public          *
00022  *   License.  This exception does not however invalidate any other        *
00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
00026  *   This library is distributed in the hope that it will be useful,       *
00027  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00029  *   Lesser General Public License for more details.                       *
00030  *                                                                         *
00031  *   You should have received a copy of the GNU General Public             *
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00033  *   Foundation, Inc., 59 Temple Place,                                    *
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00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 #ifndef ORO_CORELIB_BUILD_TYPE_HPP
00040 #define ORO_CORELIB_BUILD_TYPE_HPP
00041 
00042 #include "Types.hpp"
00043 #include "DataSourceAdaptor.hpp"
00044 #include "DataSources.hpp"
00045 
00046 namespace RTT
00047 {
00048     namespace detail
00049     {
00053         template<class T>
00054         struct BuildType
00055         {
00056             static typename AssignableDataSource<T>::shared_ptr Value(const T& value = T()) {
00057                 typename AssignableDataSource<T>::shared_ptr _value;
00058 #ifndef ORO_EMBEDDED
00059                 assert( detail::DataSourceTypeInfo<T>::getTypeInfo() );
00060                 DataSourceBase::shared_ptr dsb = detail::DataSourceTypeInfo<T>::getTypeInfo()->buildValue();
00061                 if (dsb)
00062                     // First see if it is a predefined type (not unknown) and if so, build that one.
00063                     _value = AdaptAssignableDataSource<T>()(dsb);
00064                 if ( _value ) {
00065                     _value->set( value );
00066                 } else {
00067                     // this type is unknown, build a default one.
00068                     _value = new ValueDataSource<T>(value);
00069                 }
00070 #else
00071                 _value = new ValueDataSource<T>(value);
00072 #endif
00073                 return _value;
00074             }
00075         };
00076     }
00077 }
00078 
00079 #endif
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