VectorTemplateComposition.hpp

/***************************************************************************
  tag: Tinne De Laet 2007  VectorTemplateComposition.hpp
       2007 Ruben Smits
                        VectorTemplateComposition.hpp -  description

 ***************************************************************************
 *   This library 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;                 *
 *   version 2 of the License.                                             *
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 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
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 *   resulting executable to be covered by the GNU General Public          *
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 ***************************************************************************/

#ifndef VECTOR_TEMPLATE_COMPOSITION_HPP
#define VECTOR_TEMPLATE_COMPOSITION_HPP

#include "../Property.hpp"
#include "../PropertyBag.hpp"
#include "SequenceTypeInfo.hpp"
#include "Types.hpp"
#include "../Logger.hpp"
#include "../internal/DataSources.hpp"
#include <ostream>
#include <sstream>
#include <vector>

namespace RTT
{ namespace types {
    template <typename T, bool has_ostream>
    struct StdVectorTemplateTypeInfo
        : public SequenceTypeInfo<std::vector<T>, has_ostream >
    {
        StdVectorTemplateTypeInfo<T,has_ostream>( std::string name )
            : SequenceTypeInfo<std::vector<T>, has_ostream >(name)
        {
        }
    };

    template<typename T>
    std::ostream& operator << (std::ostream& os, const std::vector<T>& vec)
    {
        os<<'[';
        for(unsigned int i=0;i<vec.size();i++){
            if(i>0)
                os<<',';
            os<<vec[i]<<' ';
        }

        return os << ']';
    }

    template<typename T>
    std::istream& operator >> (std::istream& is,std::vector<T>& vec)
    {
        return is;
    }

    template<typename T>
    struct stdvector_ctor
        : public std::unary_function<int, const std::vector<T>&>
    {
        typedef const std::vector<T>& (Signature)( int );
        mutable boost::shared_ptr< std::vector<T> > ptr;
        stdvector_ctor()
            : ptr( new std::vector<T>() ) {}
        const std::vector<T>& operator()( int size ) const
        {
            ptr->resize( size );
            return *(ptr);
        }
    };

    template<typename T>
    struct stdvector_varargs_ctor
    {
        typedef const std::vector<T>& result_type;
        typedef T argument_type;
        result_type operator()( const std::vector<T>& args ) const
        {
            return args;
        }
    };

     template<typename T>
     struct StdVectorBuilder
         : public TypeConstructor
     {
         virtual base::DataSourceBase::shared_ptr build(const std::vector<base::DataSourceBase::shared_ptr>& args) const {
             if (args.size() == 0 )
                 return base::DataSourceBase::shared_ptr();
             typename internal::NArityDataSource<stdvector_varargs_ctor<T> >::shared_ptr vds = new internal::NArityDataSource<stdvector_varargs_ctor<T> >();
             for(unsigned int i=0; i != args.size(); ++i) {
                 typename internal::DataSource<T>::shared_ptr dsd = boost::dynamic_pointer_cast< internal::DataSource<T> >( args[i] );
                 if (dsd)
                     vds->add( dsd );
                 else
                     return base::DataSourceBase::shared_ptr();
             }
             return vds;
         }
     };

    template<typename T>
    struct stdvector_ctor2
        : public std::binary_function<int, T, const std::vector<T>&>
    {
        typedef const std::vector<T>& (Signature)( int, T );
        mutable boost::shared_ptr< std::vector<T> > ptr;
        stdvector_ctor2()
            : ptr( new std::vector<T>() ) {}
        const std::vector<T>& operator()( int size, T value ) const
        {
            ptr->resize( size );
            ptr->assign( size, value );
            return *(ptr);
        }
    };
}}

#ifdef __clang__
namespace std {
    using RTT::types::operator<<;
    using RTT::types::operator>>;
}
#endif

#endif