/*----------------------------------------------------------------------------------------------
Set this SilTime to the indicated variant time. Variant time is always in local time.
----------------------------------------------------------------------------------------------*/
void SilTime::SetToVarTime(double vtim)
{
double dbl = vtim;
// So that the arithmetic works even for negative dates, convert the
// date to the _actual number of days_ since 0000h 12/30/1899.
if (dbl < 0.0)
dbl = 2.0 * ceil(dbl) - dbl;
// Get the local time value.
dbl = (dbl - kvtimJanuary1st1601) * kmsecPerDay;
m_msec = g_tmm.ToUtc((int64)dbl);
}
/*----------------------------------------------------------------------------------------------
Set the value of this SilTime according to the information in psti.
----------------------------------------------------------------------------------------------*/
void SilTime::SetTimeInfo(const SilTimeInfo & sti, bool fUtc)
{
int dyear = sti.year + FloorDiv(sti.ymon - 1, kmonPerYear) - kyearBase;
int mon = ModPos(sti.ymon - 1, kmonPerYear);
// Calculate the day number.
int64 day = (int64)365 * dyear +
FloorDiv(dyear, 4) - FloorDiv(dyear, 100) + FloorDiv(dyear, 400) +
g_rgyday[IsLeapYear(dyear + kyearBase)][mon] + sti.mday - 1;
m_msec = day * kmsecPerDay +
sti.hour * (int64)kmsecPerHour + sti.min * (int64)kmsecPerMin +
sti.sec * (int64)kmsecPerSec + sti.msec;
if (!fUtc)
m_msec = g_tmm.ToUtc(m_msec);
}
/*----------------------------------------------------------------------------------------------
Set the value of this SilTime according to the information in psti.
----------------------------------------------------------------------------------------------*/
void SilTime::SetTimeInfo(const SilTimeInfo & sti, bool fUtc)
{
int dyear = sti.year + FloorDiv(sti.ymon - 1, kmonPerYear) - kyearBase;
int mon = ModPos(sti.ymon - 1, kmonPerYear);
// Calculate the day number.
int64 day = (int64)365 * dyear +
FloorDiv(dyear, 4) - FloorDiv(dyear, 100) + FloorDiv(dyear, 400) +
g_rgyday[IsLeapYear(dyear + kyearBase)][mon] + sti.mday - 1;
m_msec = day * kmsecPerDay +
sti.hour * (int64)kmsecPerHour + sti.min * (int64)kmsecPerMin +
sti.sec * (int64)kmsecPerSec + sti.msec;
#if WIN32
if (!fUtc)
m_msec = g_tmm.ToUtc(m_msec);
#else // WIN32
if (!fUtc && (sti.year > 1970))
{
m_msec *= kfttPerMsec;
m_msec /= kfttPerSec;
m_msec -= SECS_1601_TO_1970;
time_t t = m_msec;
struct tm *tm_lcl;
tm_lcl = localtime(&t);
int64 bias = tm_lcl->tm_gmtoff;
m_msec += bias;
m_msec += SECS_1601_TO_1970;
m_msec *= kfttPerSec;
m_msec /= kfttPerMsec;
}
#endif // WIN32
}
