sf_enum

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_sg_sf_enum
#define tools_sg_sf_enum
 
#include "sf"
 
namespace tools {
namespace sg {
 
class bsf_enum {
public:
  TOOLS_SCLASS(tools::sg::bsf_enum);
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast<bsf_enum>(this,a_class)) {return p;}
    return 0;
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual void set_value(int) = 0;
public:
  bsf_enum(){}
  virtual ~bsf_enum(){}
public:
  bsf_enum(const bsf_enum&){}
  bsf_enum& operator=(const bsf_enum&){return *this;}
};
 
template <class T>
class sf_enum : public bsf<T>, public bsf_enum {
  typedef bsf<T> parent;
public:
  TOOLS_T_SCLASS(T,tools::sg::sf_enum);
  virtual void* cast(const std::string& a_class) const {
   {if(void* p = cmp_cast< sf_enum<T> >(this,a_class)) {return p;}}
   {if(void* p = bsf_enum::cast(a_class)) {return p;}}
    return parent::cast(a_class);
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual bool write(io::iwbuf& a_buffer) {
    return a_buffer.write((int16)parent::m_value);
  }
  virtual bool read(io::irbuf& a_buffer) {
    int16 v;
    if(!a_buffer.read(v)) return false;
    parent::m_value = (T)v;
    return true;
  }
  virtual bool dump(std::ostream&) {
    //a_out << parent::m_value << std::endl;
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  virtual void set_value(int a_value) {parent::value(T(a_value));}
public:
  sf_enum():parent(),bsf_enum(){}
  sf_enum(const T& a_value):parent(a_value),bsf_enum(){}
  virtual ~sf_enum(){}
public:
  sf_enum(const sf_enum& a_from):parent(a_from),bsf_enum(a_from){}
  sf_enum& operator=(const sf_enum& a_from){
    parent::operator=(a_from);
    return *this;
  }
public:
  sf_enum& operator=(const T& a_value){
    parent::operator=(a_value);
    return *this;
  }
};
 
}}
 
#endif