TextInterfaceTransform.h

//-*-C++-*-
 
/***************************************************************************
 *
 *   Copyright (C) 2022 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/psrchive/Util/units/TextInterfaceTransform.h
 
#ifndef __TextInterfaceTransform_h
#define __TextInterfaceTransform_h
 
#include "TextInterfaceAttribute.h"
 
namespace TextInterface
{

  template<class C, class Get, class X>
  class AttributeXformGet : public AttributeGet<C,Get>
  {
 
  public:

    AttributeXformGet (const std::string& _name, Get _get, X _xform)
     : AttributeGet<C,Get> (_name, _get)
      { xform = _xform; }

    Attribute<C>* clone () const { return new AttributeXformGet(*this); }

    std::string get_value (const C* ptr) const
    { return tostring( xform( (ptr->*(this->get)) () ) ); }
 
  protected:
    X xform;
  };


  template<class C>
  class XAllocator
  {
  public:

    template<class Get, class X>
      AttributeXformGet<C,Get,X>* 
      operator () (const std::string& n, Get g, X x)
      { return new AttributeXformGet<C,Get,X> (n, g, x); }
    
    template<class Get, class X>
      AttributeXformGet<C,Get,X>* 
      operator () (const std::string& n, const std::string& d, Get g, X x)
      {
        AttributeXformGet<C,Get,X>* get = operator () (n,g,x);
        get->set_description (d); return get;
      }
  };
 
}
 
#endif