2 Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
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35 /** @file src/local_time.h
36 * @brief LocalTime class
40 #ifndef LIBDCP_LOCAL_TIME_H
41 #define LIBDCP_LOCAL_TIME_H
44 #include <boost/date_time/posix_time/posix_time.hpp>
48 class local_time_basic_test;
55 * @brief A representation of a local time (down to the second), including its offset
56 * from GMT (equivalent to xs:dateTime).
58 * I tried to use boost for this, really I did, but I could not get it
59 * to parse strings of the required format (those that include time zones).
61 * See http://www.w3.org/TR/xmlschema-2/#dateTime
66 /** Construct a LocalTime from the current time */
69 explicit LocalTime (struct tm tm);
71 /** Construct a LocalTime from a boost::posix_time::ptime using the local
74 explicit LocalTime (boost::posix_time::ptime);
76 /** Construct a LocalTime from a boost::posix_time::ptime and a time zone offset
77 * @param tz_minute Offset from UTC in minutes; if the timezone is behind UTC this may be negative,
78 * e.g. -04:30 would have tz_hour=-1 and tz_minute=-30.
80 LocalTime (boost::posix_time::ptime, int tz_hour, int tz_minute);
82 /** @param s A string of the form 2013-01-05T18:06:59[.123][+04:00] */
83 explicit LocalTime (std::string s);
85 /** @return A string of the form 2013-01-05T18:06:59+04:00 or 2013-01-05T18:06:59.123+04:00 */
86 std::string as_string (bool with_millisecond = false) const;
88 /** @return The date in the form YYYY-MM-DD */
89 std::string date () const;
91 /** @return The time in the form HH:MM:SS or HH:MM:SS.mmm */
92 std::string time_of_day (bool with_second, bool with_millisecond) const;
106 void set_year (int y) {
110 void add_days (int d);
111 void add_months (int a);
112 void add_minutes (int a);
114 bool operator== (LocalTime const & other) const;
115 bool operator!= (LocalTime const & other) const;
116 bool operator< (LocalTime const & other) const;
119 friend class ::local_time_basic_test;
121 void set (struct tm const * tm);
122 void set (boost::posix_time::ptime);
123 void set_local_time_zone ();
126 int _year = 0; ///< year
127 int _month = 0; ///< month number of the year (1-12)
128 int _day = 0; ///< day number of the month (1-31)
129 int _hour = 0; ///< hour number of the day (0-23)
130 int _minute = 0; ///< minute number of the hour (0-59)
131 int _second = 0; ///< second number of the minute (0-59)
132 int _millisecond = 0; ///< millisecond number of the second (0-999)
134 int _tz_hour = 0; ///< hours by which this time is offset from UTC; can be negative
135 /** Minutes by which this time is offset from UTC; if _tz_hour is negative
136 * this will be either 0 or negative.
143 operator<< (std::ostream& s, LocalTime const & t);