source: src/Actions/Action_impl_header.hpp@ dbf8c8

/*
 * Action_impl_header.hpp
 *
 *  Created on: Aug 25, 2010
 *      Author: heber
 */

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/comparison/equal.hpp>
#include <boost/preprocessor/comparison/not_equal.hpp>
#include <boost/preprocessor/control/expr_if.hpp>
#include <boost/preprocessor/control/if.hpp>
#include <boost/preprocessor/debug/assert.hpp>
#include <boost/preprocessor/iteration/local.hpp>
#include <boost/preprocessor/list/adt.hpp>
#include <boost/preprocessor/punctuation/comma_if.hpp>
#include <boost/preprocessor/punctuation/paren.hpp>
#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/preprocessor/seq/elem.hpp>
#include <boost/preprocessor/seq/push_back.hpp>
#include <boost/preprocessor/seq/seq.hpp>
#include <boost/preprocessor/seq/size.hpp>
#include <boost/preprocessor/seq/transform.hpp>

#include <iostream>
#include <typeinfo>

#include "Actions/ActionTraits.hpp"

#include "Parameters/Parameter.hpp"

// some derived names: if CATEGORY is not given, we don't prefix with it
#ifdef CATEGORY
#define ACTION BOOST_PP_CAT(CATEGORY, BOOST_PP_CAT(ACTIONNAME, Action))
#define COMMAND BOOST_PP_CAT(CATEGORY, ACTIONNAME)
#define PARAMS BOOST_PP_CAT(CATEGORY, BOOST_PP_CAT(ACTIONNAME, Parameters))
#else
#define ACTION BOOST_PP_CAT(ACTIONNAME, Action)
#define COMMAND ACTIONNAME
#define PARAMS BOOST_PP_CAT(ACTIONNAME, Parameters)
#endif
// check if no lists given
#ifndef paramtypes
#define MAXPARAMTYPES 0
#else
#define MAXPARAMTYPES BOOST_PP_SEQ_SIZE(paramtypes)
#endif
#ifndef paramdefaults
#define MAXPARAMDEFAULTS 0
// this is required for valid_print "else part"
#define sequencer(z,n,data) \
  BOOST_PP_SEQ_PUSH_BACK( data, NOPARAM_DEFAULT)
#define paramdefaults BOOST_PP_REPEAT( MAXPARAMTYPES, sequencer, BOOST_PP_SEQ_NIL )
#else
#define MAXPARAMDEFAULTS BOOST_PP_SEQ_SIZE(paramdefaults)
#endif
#define PARAM_DEFAULT(x) \
    (x, BOOST_PP_NIL)

// check user has given name and category
#ifndef ACTIONNAME
ERROR: No "ACTIONNAME" defined in: __FILE__
#endif

// calculate numbers and check whether all have same size
#ifdef paramtokens
BOOST_PP_ASSERT_MSG(BOOST_PP_EQUAL(MAXPARAMTYPES, BOOST_PP_SEQ_SIZE(paramtokens)),\
  ERROR: There are not the same number of "paramtokens" and "paramtypes" in: __FILE__ \
)
#endif
#ifdef paramreferences
BOOST_PP_ASSERT_MSG(BOOST_PP_EQUAL(MAXPARAMTYPES, BOOST_PP_SEQ_SIZE(paramreferences)),\
  ERROR: There are not the same number of "paramtokens" and "paramreferences" in: __FILE__ \
)
#endif
#ifdef paramdescriptions
BOOST_PP_ASSERT_MSG(BOOST_PP_EQUAL(MAXPARAMTYPES, BOOST_PP_SEQ_SIZE(paramdescriptions)),\
  ERROR: There are not the same number of "paramtokens" and "paramdescriptions" in: __FILE__ \
)
#endif

// check for mandatory defines
#ifndef DESCRIPTION
BOOST_PP_ASSERT_MSG(0, \
    "ERROR: Description is mandatory for Actions, here for ACTION " \
)
#endif

// check if paramdefaults is given, otherwise fill list with NOPARAM_DEFAULT
// this does not work: paramdefaults has to be completely defined before
// being used within option_print (used as an array there and not as
// some function call still to be expanded)
//#define paramdefaults (NOPARAM_DEFAULT)
//#define tempvalue(z,n,value)
//  BOOST_PP_CAT(value,(NOPARAM_DEFAULT))
//BOOST_PP_REPEAT(tempvalue, MAXPARAMTYPES, paramdefaults)
//#undef tempvalue
//#else

// if present, check if correct number of arguments
#ifdef paramdefaults
BOOST_PP_ASSERT_MSG(BOOST_PP_EQUAL(MAXPARAMTYPES, BOOST_PP_SEQ_SIZE(paramdefaults)),\
  ERROR: There are not the same number of "paramtokens" and "paramdefaults" in: __FILE__ \
)
#endif

// print a list of type ref followed by a separator, i.e. "Parameter<int> i;"
#define type_print(z,n,TYPELIST, VARLIST, separator) \
  Parameter < \
  BOOST_PP_SEQ_ELEM(n, TYPELIST) \
  > \
  BOOST_PP_SEQ_ELEM(n, VARLIST) \
  separator

// print a list of type ref followed, i.e. "int i, double position"
#define type_list(z,n,TYPELIST, VARLIST) \
  BOOST_PP_COMMA_IF(n)\
  BOOST_PP_SEQ_ELEM(n, TYPELIST) \
  BOOST_PP_SEQ_ELEM(n, VARLIST)

// prints Options.insert
#define option_print(z,n,unused, unused2) \
  tester = Options. insert (\
      std::pair< std::string, OptionTrait *> ( \
      BOOST_PP_SEQ_ELEM(n, paramtokens), \
      new OptionTrait(\
          BOOST_PP_SEQ_ELEM(n, paramtokens), \
          &typeid( BOOST_PP_SEQ_ELEM(n, paramtypes) ), \
          BOOST_PP_SEQ_ELEM(n, paramdescriptions) \
          BOOST_PP_COMMA_IF( BOOST_PP_NOT( BOOST_PP_LIST_IS_NIL( BOOST_PP_SEQ_ELEM(n, paramdefaults) ) ) ) \
          BOOST_PP_EXPR_IF( \
              BOOST_PP_NOT( BOOST_PP_LIST_IS_NIL( BOOST_PP_SEQ_ELEM(n, paramdefaults) ) ), \
              toString BOOST_PP_LPAREN() \
                  BOOST_PP_LIST_FIRST( BOOST_PP_SEQ_ELEM(n, paramdefaults) )) \
              BOOST_PP_RPAREN() \
          )\
      )\
  ); \
  ASSERT(tester.second, "ActionTrait<ACTION>::ActionTrait<ACTION>() option token present twice!");

namespace MoleCuilder {

void COMMAND(
#if defined paramtypes && defined paramreferences
#define BOOST_PP_LOCAL_MACRO(n) type_list(~, n, paramtypes, paramreferences)
#define BOOST_PP_LOCAL_LIMITS  (0, MAXPARAMTYPES-1)
#include BOOST_PP_LOCAL_ITERATE()
#endif
    );

class ACTION;

template <>
class ActionTraits<ACTION> : public ActionTrait {
public:
  ActionTraits() :
#ifndef SHORTFORM
    ActionTrait(OptionTrait(TOKEN, &typeid(void), DESCRIPTION, std::string()))
#else
    ActionTrait(OptionTrait(TOKEN, &typeid(void), DESCRIPTION, std::string(), SHORTFORM))
#endif /* SHORTFORM */
  {
  // initialize remainder of action info
#ifdef MENUNAME
    MenuTitle = MENUNAME;
#endif
#ifdef MENUPOSITION
    MenuPosition = MENUPOSITION;
#endif

    // initialize action's options
    std::pair< ActionTrait::options_iterator, bool > tester;
#ifdef paramtokens
#define BOOST_PP_LOCAL_MACRO(n) option_print(~, n, ~, )
#define BOOST_PP_LOCAL_LIMITS  (0, MAXPARAMTYPES-1)
#include BOOST_PP_LOCAL_ITERATE()
#endif
    // associate action's short form also with option
#ifdef SHORTFORM
    if (Options.find(TOKEN) != Options.end())
      Options[TOKEN]->setShortForm(std::string(SHORTFORM));
#endif /* SHORTFORM */
    //std::cout << "ActionTraits<" << BOOST_PP_STRINGIZE(ACTION) << ">::ActionTraits() on instance " << this << " with " << getName() << ", type " << getTypeName() << " and description " << getDescription() << std::endl;
  }

  virtual ~ActionTraits() {
    //std::cout << "ActionTraits<" << BOOST_PP_STRINGIZE(ACTION) << ">::~ActionTraits() on instance " << this << " with name " << getName() << " called." << std::endl;
  }
};

class ACTION : public Action {
  #if defined paramtypes && defined paramreferences
  friend void COMMAND(
  #define BOOST_PP_LOCAL_MACRO(n) type_list(~, n, paramtypes, paramreferences)
  #define BOOST_PP_LOCAL_LIMITS  (0, MAXPARAMTYPES-1)
  #include BOOST_PP_LOCAL_ITERATE()
      );
  # else
  void COMMAND();
  #endif

public:
  ACTION();
  virtual ~ACTION();

  bool canUndo();
  bool shouldUndo();

  struct PARAMS : ActionParameters {
    //!> constructor for class PARAMS, setting valid ranges
    PARAMS();
    //!> copy constructor for class PARAMS, setting valid ranges
    PARAMS(const PARAMS &p);
  #if defined paramtypes && defined paramreferences
  #define BOOST_PP_LOCAL_MACRO(n) type_print(~, n, paramtypes, paramreferences, ;)
  #define BOOST_PP_LOCAL_LIMITS  (0, MAXPARAMTYPES-1)
  #include BOOST_PP_LOCAL_ITERATE()
  #endif
  } params;

protected:
  virtual Dialog * fillDialog(Dialog*);

  void startTimer() const;
  void endTimer() const;

private:
  virtual Action::state_ptr performCall();
  virtual Action::state_ptr performUndo(Action::state_ptr);
  virtual Action::state_ptr performRedo(Action::state_ptr);
};

}

#undef paramvalids
#undef paramtypes
#undef paramtokens
#undef paramreferences
#undef paramdescriptions
#undef paramdefaults
#undef MAXPARAMTYPES
#undef MAXPARAMDEFAULTS
#undef statetypes
#undef statereferences
#undef MAXSTATETYPES
#undef PARAM_DEFAULT

#undef option_print
#undef sequencer
#undef type_print
#undef type_list

#undef ACTION
#undef COMMAND
#undef COMMANDFULL
#undef PARAMS

#undef ACTIONNAME
#undef CATEGORY
#undef MENUNAME
#undef MENUPOSITION
#undef TOKEN

#undef DESCRIPTION
#undef SHORTFORM