00001 /*************************************************************************** 00002 tag: The SourceWorks Tue Sep 7 00:55:18 CEST 2010 RTStringTypeInfo.hpp 00003 00004 RTStringTypeInfo.hpp - description 00005 ------------------- 00006 begin : Tue September 07 2010 00007 copyright : (C) 2010 The SourceWorks 00008 email : peter@thesourceworks.com 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 * 00032 * License along with this library; if not, write to the Free Software * 00033 * Foundation, Inc., 59 Temple Place, * 00034 * Suite 330, Boston, MA 02111-1307 USA * 00035 * * 00036 ***************************************************************************/ 00037 00038 00039 #include "../rt_string.hpp" 00040 #include "../types/SequenceTypeInfo.hpp" 00041 00042 namespace RTT 00043 { 00044 namespace types 00045 { 00049 struct RTStringTypeInfo: public SequenceTypeInfo<rt_string, true> 00050 { 00051 RTStringTypeInfo() : 00052 SequenceTypeInfo<rt_string, true> ("rt_string") 00053 { 00054 } 00055 00056 base::AttributeBase* buildVariable(std::string name, int size) const 00057 { 00058 rt_string t_init(size, ' '); // we can't use the default char(), which is null ! 00059 00060 // returned type is identical to parent, but we set spaces. 00061 base::AttributeBase* ret = SequenceTypeInfo<rt_string, true>::buildVariable(name, size); 00062 Attribute<rt_string> tt = ret; 00063 tt.set(t_init); 00064 return ret; 00065 } 00066 00067 virtual bool composeType(base::DataSourceBase::shared_ptr source, base::DataSourceBase::shared_ptr result) const 00068 { 00069 // First, try a plain update. 00070 if (result->update(source.get())) 00071 return true; 00072 return false; 00073 } 00074 00078 virtual base::DataSourceBase::shared_ptr decomposeType(base::DataSourceBase::shared_ptr source) const { 00079 return source; 00080 } 00081 00082 }; 00083 } 00084 }