/indra/newview/lldateutil.cpp
https://bitbucket.org/lindenlab/viewer-beta/ · C++ · 215 lines · 125 code · 30 blank · 60 comment · 18 complexity · 8b05da765fcdf678946557b334315849 MD5 · raw file
- /**
- * @file lldateutil.cpp
- *
- * $LicenseInfo:firstyear=2009&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #include "llviewerprecompiledheaders.h"
- #include "lldateutil.h"
- #include <boost/date_time/gregorian/gregorian.hpp>
- #include <boost/date_time/posix_time/ptime.hpp>
- // Linden libraries
- #include "lltrans.h"
- #include "llui.h"
- using namespace boost::gregorian;
- using namespace boost::posix_time;
- static S32 DAYS_PER_MONTH_NOLEAP[] =
- { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
- static S32 DAYS_PER_MONTH_LEAP[] =
- { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
- static S32 days_from_month(S32 year, S32 month)
- {
- llassert_always(1 <= month);
- llassert_always(month <= 12);
- if (year % 4 == 0
- && year % 100 != 0)
- {
- // leap year
- return DAYS_PER_MONTH_LEAP[month - 1];
- }
- else
- {
- return DAYS_PER_MONTH_NOLEAP[month - 1];
- }
- }
- bool LLDateUtil::dateFromPDTString(LLDate& date, const std::string& str)
- {
- S32 month, day, year;
- S32 matched = sscanf(str.c_str(), "%d/%d/%d", &month, &day, &year);
- if (matched != 3) return false;
- date.fromYMDHMS(year, month, day);
- F64 secs_since_epoch = date.secondsSinceEpoch();
- // Correct for the fact that specified date is in Pacific time, == UTC - 8
- secs_since_epoch += 8.0 * 60.0 * 60.0;
- date.secondsSinceEpoch(secs_since_epoch);
- return true;
- }
- std::string LLDateUtil::ageFromDate(const LLDate& born_date, const LLDate& now)
- {
- S32 born_month, born_day, born_year;
- // explode out to month/day/year again
- born_date.split(&born_year, &born_month, &born_day);
- S32 now_year, now_month, now_day;
- now.split(&now_year, &now_month, &now_day);
- // Do grade-school subtraction, from right-to-left, borrowing from the left
- // when things go negative
- S32 age_days = (now_day - born_day);
- if (age_days < 0)
- {
- now_month -= 1;
- if (now_month == 0)
- {
- now_year -= 1;
- now_month = 12;
- }
- age_days += days_from_month(now_year, now_month);
- }
- S32 age_months = (now_month - born_month);
- if (age_months < 0)
- {
- now_year -= 1;
- age_months += 12;
- }
- S32 age_years = (now_year - born_year);
- // Noun pluralization depends on language
- std::string lang = LLUI::getLanguage();
- // Try for age in round number of years
- LLStringUtil::format_map_t args;
- if (age_months > 0 || age_years > 0)
- {
- args["[AGEYEARS]"] =
- LLTrans::getCountString(lang, "AgeYears", age_years);
- args["[AGEMONTHS]"] =
- LLTrans::getCountString(lang, "AgeMonths", age_months);
- // We want to display times like:
- // 2 year 2 months
- // 2 years (implicitly 0 months)
- // 11 months
- if (age_years > 0)
- {
- if (age_months > 0)
- {
- return LLTrans::getString("YearsMonthsOld", args);
- }
- else
- {
- return LLTrans::getString("YearsOld", args);
- }
- }
- else // age_years == 0
- {
- return LLTrans::getString("MonthsOld", args);
- }
- }
- // you're 0 months old, display in weeks or days
- // Now for age in weeks
- S32 age_weeks = age_days / 7;
- age_days = age_days % 7;
- if (age_weeks > 0)
- {
- args["[AGEWEEKS]"] =
- LLTrans::getCountString(lang, "AgeWeeks", age_weeks);
- return LLTrans::getString("WeeksOld", args);
- }
- // Down to days now
- if (age_days > 0)
- {
- args["[AGEDAYS]"] =
- LLTrans::getCountString(lang, "AgeDays", age_days);
- return LLTrans::getString("DaysOld", args);
- }
- return LLTrans::getString("TodayOld");
- }
- std::string LLDateUtil::ageFromDate(const std::string& date_string, const LLDate& now)
- {
- LLDate born_date;
- if (!dateFromPDTString(born_date, date_string))
- return "???";
- return ageFromDate(born_date, now);
- }
- std::string LLDateUtil::ageFromDate(const std::string& date_string)
- {
- return ageFromDate(date_string, LLDate::now());
- }
- //std::string LLDateUtil::ageFromDateISO(const std::string& date_string,
- // const LLDate& now)
- //{
- // S32 born_month, born_day, born_year;
- // S32 matched = sscanf(date_string.c_str(), "%d-%d-%d",
- // &born_year, &born_month, &born_day);
- // if (matched != 3) return "???";
- // date.fromYMDHMS(year, month, day);
- // F64 secs_since_epoch = date.secondsSinceEpoch();
- // // Correct for the fact that specified date is in Pacific time, == UTC - 8
- // secs_since_epoch += 8.0 * 60.0 * 60.0;
- // date.secondsSinceEpoch(secs_since_epoch);
- // return ageFromDate(born_year, born_month, born_day, now);
- //}
- //
- //std::string LLDateUtil::ageFromDateISO(const std::string& date_string)
- //{
- // return ageFromDateISO(date_string, LLDate::now());
- //}
- S32 LLDateUtil::secondsSinceEpochFromString(const std::string& format, const std::string& str)
- {
- date_input_facet *facet = new date_input_facet(format);
- std::stringstream ss;
- ss << str;
- ss.imbue(std::locale(ss.getloc(), facet));
- date d;
- ss >> d;
- ptime time_t_date(d);
- ptime time_t_epoch(date(1970,1,1));
- // We assume that the date defined by str is in UTC, so the difference
- // is calculated with no time zone corrections.
- time_duration diff = time_t_date - time_t_epoch;
- return diff.total_seconds();
- }