StdStringTypeInfo.hpp

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/***************************************************************************
  tag: The SourceWorks  Tue Sep 7 00:55:18 CEST 2010  StdStringTypeInfo.hpp

                        StdStringTypeInfo.hpp -  description
                           -------------------
    begin                : Tue September 07 2010
    copyright            : (C) 2010 The SourceWorks
    email                : peter@thesourceworks.com

 ***************************************************************************
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#include <string>
#include "../types/SequenceTypeInfo.hpp"
#include "../types/TemplateTypeInfo.hpp"

namespace RTT
{
    namespace types
    {

        struct StdStringTypeInfo: public SequenceTypeInfo<std::string, true>
        {
            StdStringTypeInfo(const std::string& tname = "string") :
                SequenceTypeInfo<std::string, true> (tname)
            {
            }

            base::AttributeBase* buildVariable(std::string name, int size) const
            {
                std::string t_init(size, ' '); // we can't use the default char(), which is null !

                // returned type is identical to parent, but we set spaces.
                base::AttributeBase* ret = SequenceTypeInfo<std::string, true>::buildVariable(name, size);
                Attribute<std::string> tt = ret;
                tt.set(t_init);
                return ret;
            }

            virtual bool composeType(base::DataSourceBase::shared_ptr source, base::DataSourceBase::shared_ptr result) const
            {
                return result->update( source.get() );
            }

            virtual base::DataSourceBase::shared_ptr decomposeType(base::DataSourceBase::shared_ptr source) const {
                return source;
            }

        };
    }
}