parameter_initializer.h

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//    sampalib.org ESL library and tools
//    Copyright (C) 2007  Thierry Grellier
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License version 2 as
//    published by the Free Software Foundation.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License along
//    with this program; if not, write to the Free Software Foundation, Inc.,
//    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
//    contact: www.sampalib.org

#ifndef PARAMETER_INITIALIZER_H
#define PARAMETER_INITIALIZER_H

#include "sampa/core/parameter.h"
#include <string>

namespace Sampa {

class LuaInterpreter;

class ParameterInitializerBase {
public:
  void initialize(const char* name, bool optional);
protected:
  virtual int retrieve(LuaInterpreter* interpreter, const std::string& full_name) = 0;
  virtual std::string to_string() const = 0;
};

template <class Parameter>
class ParameterInitializer : public ParameterInitializerBase {
public:
  inline ParameterInitializer(Parameter* parm) : m_parm(parm) {  }
protected:
  // not implemented : to be implemented in partial specialization
  int retrieve(LuaInterpreter* interpreter, const std::string& full_name);
  std::string to_string() const;
private:
  Parameter* m_parm;
};

template <class Enumerated>
class EnumeratedParameterInitializer : public ParameterInitializerBase {
public:
  inline EnumeratedParameterInitializer(EnumeratedParameter<Enumerated>* parm) : m_parm(parm) {  }
protected:
  int retrieve(LuaInterpreter* interpreter, const std::string& full_name);
  std::string to_string() const;
private:
  EnumeratedParameter<Enumerated>* m_parm;
  // to be initialized in partial specialisation, with M_enum_labels[i] = 0, end marker
  static const char* M_enum_labels[];
  static Enumerated  M_enum_consts[];
};

} // namespace Sampa

#endif

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