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Diffstat (limited to 'indra/newview/lldateutil.cpp')
| -rw-r--r-- | indra/newview/lldateutil.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/indra/newview/lldateutil.cpp b/indra/newview/lldateutil.cpp new file mode 100644 index 0000000000..fcc73a07bc --- /dev/null +++ b/indra/newview/lldateutil.cpp @@ -0,0 +1,188 @@ +/** +* @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" + +// Linden libraries +#include "lltrans.h" +#include "llui.h" + +static S32 DAYS_PER_MONTH_NOLEAP[] = + { 31, 28, 21, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; +static S32 DAYS_PER_MONTH_LEAP[] = + { 31, 29, 21, 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()); +//} |