date_time_facet.hpp

//
//  Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
//  Distributed under the Boost Software License, Version 1.0. (See
//  accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_LOCALE_DATE_TIME_FACET_HPP_INCLUDED
#define BOOST_LOCALE_DATE_TIME_FACET_HPP_INCLUDED

#include <boost/locale/config.hpp>
#ifdef BOOST_MSVC
#  pragma warning(push)
#  pragma warning(disable : 4275 4251 4231 4660)
#endif

#include <boost/cstdint.hpp>
#include <locale>

namespace boost {
    namespace locale {
        namespace period {
            namespace marks {
                enum period_mark {
                    invalid,                    
                    era,                        
                    year,                       
                    extended_year,              
                    month,                      
                    day,                        
                    day_of_year,                
                    day_of_week,                
                    day_of_week_in_month,       
                    day_of_week_local,          
                    hour,                       
                    hour_12,                    
                    am_pm,                      
                    minute,                     
                    second,                     
                    week_of_year,               
                    week_of_month,              
                    first_day_of_week,          
                };

            } // marks

            class period_type {
            public:
                period_type(marks::period_mark m = marks::invalid) : mark_(m) 
                {
                }
               
                marks::period_mark mark() const
                {
                    return mark_;
                }

                bool operator==(period_type const &other) const
                {
                    return mark()==other.mark();
                }
                bool operator!=(period_type const &other) const
                {
                    return mark()!=other.mark();
                }
            private:
                marks::period_mark mark_;
            };

        } // namespace period

        struct posix_time {
            int64_t seconds; 
            uint32_t nanoseconds;  
        };


        class abstract_calendar {
        public:

            typedef enum {
                absolute_minimum,   
                actual_minimum,     
                greatest_minimum,   
                current,            
                least_maximum,      
                actual_maximum,     
                absolute_maximum,   
            } value_type;

            typedef enum {
                move,   
                roll,   
            } update_type;

            typedef enum {
                is_gregorian,   
                is_dst          
            } calendar_option_type;

            virtual abstract_calendar *clone() const = 0;

            virtual void set_value(period::marks::period_mark p,int value) = 0;

            virtual void normalize() = 0;

            virtual int get_value(period::marks::period_mark p,value_type v) const = 0;

            virtual void set_time(posix_time const &p)  = 0;
            virtual posix_time get_time() const  = 0;

            virtual void set_option(calendar_option_type opt,int v) = 0;
            virtual int get_option(calendar_option_type opt) const = 0;

            virtual void adjust_value(period::marks::period_mark p,update_type u,int difference) = 0;

            virtual int difference(abstract_calendar const *other,period::marks::period_mark p) const = 0;

            virtual void set_timezone(std::string const &tz) = 0;
            virtual std::string get_timezone() const = 0;

            virtual bool same(abstract_calendar const *other) const = 0;

            virtual ~abstract_calendar()
            {
            }

        };

        class BOOST_LOCALE_DECL calendar_facet : public std::locale::facet {
        public:
            calendar_facet(size_t refs = 0) : std::locale::facet(refs) 
            {
            }
            virtual abstract_calendar *create_calendar() const = 0;

            static std::locale::id id;
        };

    } // locale
} // boost

#ifdef BOOST_MSVC
#pragma warning(pop)
#endif


#endif
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