// so long as the above copyright and this permission statement
// are retained in all copies.
//
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
/*
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "datetime.h"
#endif
#pragma hdrstop
#endif
+#if !defined(wxUSE_DATETIME) || wxUSE_DATETIME
+
#ifndef WX_PRECOMP
#include "wx/string.h"
- #include "wx/intl.h"
#include "wx/log.h"
#endif // WX_PRECOMP
+#include "wx/intl.h"
#include "wx/thread.h"
#include "wx/tokenzr.h"
#include "wx/module.h"
-#define wxDEFINE_TIME_CONSTANTS // before including datetime.h
-
#include <ctype.h>
#include "wx/datetime.h"
-#include "wx/timer.h" // for wxGetLocalTimeMillis()
+#include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
+
+const long wxDateTime::TIME_T_FACTOR = 1000l;
+
+#if wxUSE_EXTENDED_RTTI
+
+template<> void wxStringReadValue(const wxString &s , wxDateTime &data )
+{
+ data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+template<> void wxStringWriteValue(wxString &s , const wxDateTime &data )
+{
+ s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ;
+}
+
+wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringConverter<wxDateTime>)
+
+#endif
+//
// ----------------------------------------------------------------------------
// conditional compilation
// ----------------------------------------------------------------------------
-#if defined(HAVE_STRPTIME) && defined(__LINUX__)
+#if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \
+ ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0))
// glibc 2.0.7 strptime() is broken - the following snippet causes it to
// crash (instead of just failing):
//
#undef HAVE_STRPTIME
#endif // broken strptime()
-#ifndef WX_TIMEZONE
+#if defined(__MWERKS__) && wxUSE_UNICODE
+ #include <wtime.h>
+#endif
+
+#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
#if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
#define WX_TIMEZONE _timezone
#elif defined(__MWERKS__)
long wxmw_timezone = 28800;
- #define WX_TIMEZONE wxmw_timezone;
+ #define WX_TIMEZONE wxmw_timezone
+ #elif defined(__DJGPP__) || defined(__WINE__)
+ #include <sys/timeb.h>
+ #include <values.h>
+ static long wxGetTimeZone()
+ {
+ static long timezone = MAXLONG; // invalid timezone
+ if (timezone == MAXLONG)
+ {
+ struct timeb tb;
+ ftime(&tb);
+ timezone = tb.timezone;
+ }
+ return timezone;
+ }
+ #define WX_TIMEZONE wxGetTimeZone()
+ #elif defined(__DARWIN__)
+ #define WX_GMTOFF_IN_TM
#else // unknown platform - try timezone
#define WX_TIMEZONE timezone
#endif
-#endif // !WX_TIMEZONE
+#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+
+// debugging helper: just a convenient replacement of wxCHECK()
+#define wxDATETIME_CHECK(expr, msg) \
+ if ( !(expr) ) \
+ { \
+ wxFAIL_MSG(msg); \
+ *this = wxInvalidDateTime; \
+ return *this; \
+ }
// ----------------------------------------------------------------------------
// private classes
{
wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays);
- return TRUE;
+ return true;
}
virtual void OnExit()
{
wxDateTimeHolidayAuthority::ClearAllAuthorities();
- wxDateTimeHolidayAuthority::ms_authorities.Clear();
+ wxDateTimeHolidayAuthority::ms_authorities.clear();
}
private:
// some trivial ones
static const int MONTHS_IN_YEAR = 12;
-static const int SECONDS_IN_MINUTE = 60;
+static const int SEC_PER_MIN = 60;
+
+static const int MIN_PER_HOUR = 60;
+
+static const int HOURS_PER_DAY = 24;
static const long SECONDS_PER_DAY = 86400l;
+static const int DAYS_PER_WEEK = 7;
+
static const long MILLISECONDS_PER_DAY = 86400000l;
// this is the integral part of JDN of the midnight of Jan 1, 1970
// global data
// ----------------------------------------------------------------------------
-static wxDateTime gs_dtDefault;
-
-wxDateTime& wxDefaultDateTime = gs_dtDefault;
+// in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to
+// indicate an invalid wxDateTime object
+const wxDateTime wxDefaultDateTime;
wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
-// ----------------------------------------------------------------------------
-// private globals
-// ----------------------------------------------------------------------------
-
-// a critical section is needed to protect GetTimeZone() static
-// variable in MT case
-#if wxUSE_THREADS
- static wxCriticalSection gs_critsectTimezone;
-#endif // wxUSE_THREADS
-
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
return daysInMonth[wxDateTime::IsLeapYear(year)][month];
}
-// ensure that the timezone variable is set by calling localtime
+// returns the time zone in the C sense, i.e. the difference UTC - local
+// (in seconds)
static int GetTimeZone()
{
- // set to TRUE when the timezone is set
- static bool s_timezoneSet = FALSE;
-
- wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
+#ifdef WX_GMTOFF_IN_TM
+ // set to true when the timezone is set
+ static bool s_timezoneSet = false;
+ static long gmtoffset = LONG_MAX; // invalid timezone
+ // ensure that the timezone variable is set by calling localtime
if ( !s_timezoneSet )
{
// just call localtime() instead of figuring out whether this system
// supports tzset(), _tzset() or something else
- time_t t;
- (void)localtime(&t);
+ time_t t = 0;
+ struct tm *tm;
+
+ tm = localtime(&t);
+ s_timezoneSet = true;
- s_timezoneSet = TRUE;
+ // note that GMT offset is the opposite of time zone and so to return
+ // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM
+ // cases we have to negate it
+ gmtoffset = -tm->tm_gmtoff;
}
+ return (int)gmtoffset;
+#else // !WX_GMTOFF_IN_TM
return (int)WX_TIMEZONE;
+#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
}
// return the integral part of the JDN for the midnight of the given date (to
- JDN_OFFSET;
}
-// this function is a wrapper around strftime(3)
+// this function is a wrapper around strftime(3) adding error checking
static wxString CallStrftime(const wxChar *format, const tm* tm)
{
wxChar buf[4096];
return wxString(buf);
}
+#ifdef HAVE_STRPTIME
+
+// glibc2 doesn't define this in the headers unless _XOPEN_SOURCE is defined
+// which, unfortunately, wreaks havoc elsewhere
+#if defined(__GLIBC__) && (__GLIBC__ == 2)
+ extern "C" char *strptime(const char *, const char *, struct tm *);
+#endif
+
+// Unicode-friendly strptime() wrapper
+static const wxChar *
+CallStrptime(const wxChar *input, const char *fmt, tm *tm)
+{
+ // the problem here is that strptime() returns pointer into the string we
+ // passed to it while we're really interested in the pointer into the
+ // original, Unicode, string so we try to transform the pointer back
+#if wxUSE_UNICODE
+ wxCharBuffer inputMB(wxConvertWX2MB(input));
+#else // ASCII
+ const char * const inputMB = input;
+#endif // Unicode/Ascii
+
+ const char *result = strptime(inputMB, fmt, tm);
+ if ( !result )
+ return NULL;
+
+#if wxUSE_UNICODE
+ // FIXME: this is wrong in presence of surrogates &c
+ return input + (result - inputMB.data());
+#else // ASCII
+ return result;
+#endif // Unicode/Ascii
+}
+
+#endif // HAVE_STRPTIME
+
// if year and/or month have invalid values, replace them with the current ones
static void ReplaceDefaultYearMonthWithCurrent(int *year,
wxDateTime::Month *month)
break;
}
- return !!s && s.ToULong(number);
+ return !s.IsEmpty() && s.ToULong(number);
}
// scans all alphabetic characters and returns the resulting string
{
wxFAIL_MSG(_T("unknown calendar"));
- return FALSE;
+ return false;
}
}
{
wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") );
- // take some arbitrary Sunday
+ // take some arbitrary Sunday (but notice that the day should be such that
+ // after adding wday to it below we still have a valid date, e.g. don't
+ // take 28 here!)
tm tm;
InitTm(tm);
- tm.tm_mday = 28;
+ tm.tm_mday = 21;
tm.tm_mon = Nov;
tm.tm_year = 99;
{
tm tm;
InitTm(tm);
+ wxChar buffer[64];
+ // @Note: Do not call 'CallStrftime' here! CallStrftime checks the return code
+ // and causes an assertion failed if the buffer is to small (which is good) - OR -
+ // if strftime does not return anything because the format string is invalid - OR -
+ // if there are no 'am' / 'pm' tokens defined for the current locale (which is not good).
+ // wxDateTime::ParseTime will try several different formats to parse the time.
+ // As a result, GetAmPmStrings might get called, even if the current locale
+ // does not define any 'am' / 'pm' tokens. In this case, wxStrftime would
+ // assert, even though it is a perfectly legal use.
if ( am )
{
- *am = CallStrftime(_T("%p"), &tm);
+ if (wxStrftime(buffer, sizeof buffer, _T("%p"), &tm) > 0)
+ *am = wxString(buffer);
+ else
+ *am = wxString();
}
if ( pm )
{
tm.tm_hour = 13;
- *pm = CallStrftime(_T("%p"), &tm);
+ if (wxStrftime(buffer, sizeof buffer, _T("%p"), &tm) > 0)
+ *pm = wxString(buffer);
+ else
+ *pm = wxString();
}
}
dt += wxTimeSpan::Hours(1);
// disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(TRUE);
+ dt.MakeGMT(true);
}
else switch ( country )
{
dt += wxTimeSpan::Hours(1);
// disable DST tests because it could result in an infinite recursion!
- dt.MakeGMT(TRUE);
+ dt.MakeGMT(true);
}
else switch ( country )
{
// the values in the tm structure contain the local time
wxDateTime& wxDateTime::Set(const struct tm& tm)
{
- wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
struct tm tm2(tm);
time_t timet = mktime(&tm2);
wxFAIL_MSG( _T("mktime() failed") );
- return wxInvalidDateTime;
+ *this = wxInvalidDateTime;
+
+ return *this;
}
else
{
wxDateTime_t second,
wxDateTime_t millisec)
{
- wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
// we allow seconds to be 61 to account for the leap seconds, even if we
// don't use them really
- wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000,
- wxInvalidDateTime,
- _T("Invalid time in wxDateTime::Set()") );
+ wxDATETIME_CHECK( hour < 24 &&
+ second < 62 &&
+ minute < 60 &&
+ millisec < 1000,
+ _T("Invalid time in wxDateTime::Set()") );
// get the current date from system
struct tm *tm = GetTmNow();
- wxCHECK_MSG( tm, wxInvalidDateTime, _T("localtime() failed") );
+ wxDATETIME_CHECK( tm, _T("localtime() failed") );
// adjust the time
tm->tm_hour = hour;
wxDateTime_t second,
wxDateTime_t millisec)
{
- wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
-
- wxCHECK_MSG( hour < 24 && second < 62 && minute < 60 && millisec < 1000,
- wxInvalidDateTime,
- _T("Invalid time in wxDateTime::Set()") );
+ wxDATETIME_CHECK( hour < 24 &&
+ second < 62 &&
+ minute < 60 &&
+ millisec < 1000,
+ _T("Invalid time in wxDateTime::Set()") );
ReplaceDefaultYearMonthWithCurrent(&year, &month);
- wxCHECK_MSG( (0 < day) && (day <= GetNumberOfDays(month, year)),
- wxInvalidDateTime,
- _T("Invalid date in wxDateTime::Set()") );
+ wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)),
+ _T("Invalid date in wxDateTime::Set()") );
// the range of time_t type (inclusive)
static const int yearMinInRange = 1970;
jdn *= MILLISECONDS_PER_DAY;
+ // JDNs always suppose an UTC date, so bring it back to local time zone
+ // (also see GetJulianDayNumber() implementation)
+ long tzDiff = GetTimeZone();
+ if ( IsDST() == 1 )
+ {
+ // FIXME: again, we suppose that DST is always one hour
+ tzDiff -= 3600;
+ }
+
+ jdn += tzDiff*1000; // tzDiff is in seconds
+
m_time.Assign(jdn);
return *this;
return *this;
}
+// ----------------------------------------------------------------------------
+// DOS Date and Time Format functions
+// ----------------------------------------------------------------------------
+// the dos date and time value is an unsigned 32 bit value in the format:
+// YYYYYYYMMMMDDDDDhhhhhmmmmmmsssss
+//
+// Y = year offset from 1980 (0-127)
+// M = month (1-12)
+// D = day of month (1-31)
+// h = hour (0-23)
+// m = minute (0-59)
+// s = bisecond (0-29) each bisecond indicates two seconds
+// ----------------------------------------------------------------------------
+
+wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt)
+{
+ struct tm tm;
+ InitTm(tm);
+
+ long year = ddt & 0xFE000000;
+ year >>= 25;
+ year += 80;
+ tm.tm_year = year;
+
+ long month = ddt & 0x1E00000;
+ month >>= 21;
+ month -= 1;
+ tm.tm_mon = month;
+
+ long day = ddt & 0x1F0000;
+ day >>= 16;
+ tm.tm_mday = day;
+
+ long hour = ddt & 0xF800;
+ hour >>= 11;
+ tm.tm_hour = hour;
+
+ long minute = ddt & 0x7E0;
+ minute >>= 5;
+ tm.tm_min = minute;
+
+ long second = ddt & 0x1F;
+ tm.tm_sec = second * 2;
+
+ return Set(mktime(&tm));
+}
+
+unsigned long wxDateTime::GetAsDOS() const
+{
+ unsigned long ddt;
+ time_t ticks = GetTicks();
+ struct tm *tm = localtime(&ticks);
+
+ long year = tm->tm_year;
+ year -= 80;
+ year <<= 25;
+
+ long month = tm->tm_mon;
+ month += 1;
+ month <<= 21;
+
+ long day = tm->tm_mday;
+ day <<= 16;
+
+ long hour = tm->tm_hour;
+ hour <<= 11;
+
+ long minute = tm->tm_min;
+ minute <<= 5;
+
+ long second = tm->tm_sec;
+ second /= 2;
+
+ ddt = year | month | day | hour | minute | second;
+ return ddt;
+}
+
// ----------------------------------------------------------------------------
// time_t <-> broken down time conversions
// ----------------------------------------------------------------------------
else
{
time += (time_t)tz.GetOffset();
-#ifdef __VMS__ // time is unsigned so avoid warning
+#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
int time2 = (int) time;
if ( time2 >= 0 )
#else
// check that the algorithm gave us something reasonable
wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") );
wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") );
- wxASSERT_MSG( (INT_MIN <= year) && (year <= INT_MAX),
- _T("year range overflow") );
// construct Tm from these values
Tm tm;
// Weekday and monthday stuff
// ----------------------------------------------------------------------------
-bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday)
+// convert Sun, Mon, ..., Sat into 6, 0, ..., 5
+static inline int ConvertWeekDayToMondayBase(int wd)
{
- int year = GetYear();
+ return wd == wxDateTime::Sun ? 6 : wd - 1;
+}
+/* static */
+wxDateTime
+wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd)
+{
+ wxASSERT_MSG( numWeek > 0,
+ _T("invalid week number: weeks are counted from 1") );
+
+ // Jan 4 always lies in the 1st week of the year
+ wxDateTime dt(4, Jan, year);
+ dt.SetToWeekDayInSameWeek(wd);
+ dt += wxDateSpan::Weeks(numWeek - 1);
+
+ return dt;
+}
+
+// use a separate function to avoid warnings about using deprecated
+// SetToTheWeek in GetWeek below
+static wxDateTime
+SetToTheWeek(int year,
+ wxDateTime::wxDateTime_t numWeek,
+ wxDateTime::WeekDay weekday,
+ wxDateTime::WeekFlags flags)
+{
// Jan 4 always lies in the 1st week of the year
- Set(4, Jan, year);
- SetToWeekDayInSameWeek(weekday) += wxDateSpan::Weeks(numWeek);
+ wxDateTime dt(4, wxDateTime::Jan, year);
+ dt.SetToWeekDayInSameWeek(weekday, flags);
+ dt += wxDateSpan::Weeks(numWeek - 1);
+ return dt;
+}
+
+bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
+ WeekDay weekday,
+ WeekFlags flags)
+{
+ int year = GetYear();
+ *this = ::SetToTheWeek(year, numWeek, weekday, flags);
if ( GetYear() != year )
{
// oops... numWeek was too big
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
+}
+
+wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek,
+ WeekDay weekday,
+ WeekFlags flags) const
+{
+ return ::SetToTheWeek(GetYear(), numWeek, weekday, flags);
}
wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
return Set(GetNumOfDaysInMonth(year, month), month, year);
}
-wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday)
+wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)
{
- wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+ wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
- WeekDay wdayThis = GetWeekDay();
+ int wdayThis = GetWeekDay();
if ( weekday == wdayThis )
{
// nothing to do
return *this;
}
- else if ( weekday < wdayThis )
+
+ if ( flags == Default_First )
+ {
+ flags = GetCountry() == USA ? Sunday_First : Monday_First;
+ }
+
+ // the logic below based on comparing weekday and wdayThis works if Sun (0)
+ // is the first day in the week, but breaks down for Monday_First case so
+ // we adjust the week days in this case
+ if( flags == Monday_First )
+ {
+ if ( wdayThis == Sun )
+ wdayThis += 7;
+ }
+ //else: Sunday_First, nothing to do
+
+ // go forward or back in time to the day we want
+ if ( weekday < wdayThis )
{
return Subtract(wxDateSpan::Days(wdayThis - weekday));
}
wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday)
{
- wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+ wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
int diff;
WeekDay wdayThis = GetWeekDay();
wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday)
{
- wxCHECK_MSG( weekday != Inv_WeekDay, wxInvalidDateTime, _T("invalid weekday") );
+ wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
int diff;
WeekDay wdayThis = GetWeekDay();
Month month,
int year)
{
- wxCHECK_MSG( weekday != Inv_WeekDay, FALSE, _T("invalid weekday") );
+ wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") );
- // we don't check explicitly that -5 <= n <= 5 because we will return FALSE
+ // we don't check explicitly that -5 <= n <= 5 because we will return false
// anyhow in such case - but may be should still give an assert for it?
// take the current month/year if none specified
{
*this = dt;
- return TRUE;
+ return true;
}
else
{
// no such day in this month
- return FALSE;
+ return false;
}
}
-wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
+static inline
+wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm)
{
- Tm tm(GetTm(tz));
+ return gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday;
+}
- return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday;
+wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
+{
+ return GetDayOfYearFromTm(GetTm(tz));
}
-wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags,
- const TimeZone& tz) const
+wxDateTime::wxDateTime_t
+wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const
{
if ( flags == Default_First )
{
flags = GetCountry() == USA ? Sunday_First : Monday_First;
}
- wxDateTime_t nDayInYear = GetDayOfYear(tz);
- wxDateTime_t week;
+ Tm tm(GetTm(tz));
+ wxDateTime_t nDayInYear = GetDayOfYearFromTm(tm);
- WeekDay wd = GetWeekDay(tz);
+ int wdTarget = GetWeekDay(tz);
+ int wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay();
+ int week;
if ( flags == Sunday_First )
{
- week = (nDayInYear - wd + 7) / 7;
+ // FIXME: First week is not calculated correctly.
+ week = (nDayInYear - wdTarget + 7) / 7;
+ if ( wdYearStart == Wed || wdYearStart == Thu )
+ week++;
}
- else
+ else // week starts with monday
{
- // have to shift the week days values
- week = (nDayInYear - (wd - 1 + 7) % 7 + 7) / 7;
- }
+ // adjust the weekdays to non-US style.
+ wdYearStart = ConvertWeekDayToMondayBase(wdYearStart);
+ wdTarget = ConvertWeekDayToMondayBase(wdTarget);
- // FIXME some more elegant way??
- WeekDay wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay();
- if ( wdYearStart == Wed || wdYearStart == Thu )
- {
- week++;
+ // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html:
+ //
+ // Week 01 of a year is per definition the first week that has the
+ // Thursday in this year, which is equivalent to the week that
+ // contains the fourth day of January. In other words, the first
+ // week of a new year is the week that has the majority of its
+ // days in the new year. Week 01 might also contain days from the
+ // previous year and the week before week 01 of a year is the last
+ // week (52 or 53) of the previous year even if it contains days
+ // from the new year. A week starts with Monday (day 1) and ends
+ // with Sunday (day 7).
+ //
+
+ // if Jan 1 is Thursday or less, it is in the first week of this year
+ if ( wdYearStart < 4 )
+ {
+ // count the number of entire weeks between Jan 1 and this date
+ week = (nDayInYear + wdYearStart + 6 - wdTarget)/7;
+
+ // be careful to check for overflow in the next year
+ if ( week == 53 && tm.mday - wdTarget > 28 )
+ week = 1;
+ }
+ else // Jan 1 is in the last week of the previous year
+ {
+ // check if we happen to be at the last week of previous year:
+ if ( tm.mon == Jan && tm.mday < 8 - wdYearStart )
+ week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear();
+ else
+ week = (nDayInYear + wdYearStart - 1 - wdTarget)/7;
+ }
}
return week;
wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
{
int year = GetYear();
- wxCHECK_MSG( (0 < yday) && (yday <= GetNumberOfDays(year)),
- wxInvalidDateTime, _T("invalid year day") );
+ wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)),
+ _T("invalid year day") );
bool isLeap = IsLeapYear(year);
for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) )
// for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we
// don't need it neither - because of the CHECK above we know that
// yday lies in December then
- if ( (mon == Dec) || (yday < gs_cumulatedDays[isLeap][mon + 1]) )
+ if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) )
{
Set(yday - gs_cumulatedDays[isLeap][mon], mon, year);
double wxDateTime::GetJulianDayNumber() const
{
- // JDN are always expressed for the GMT dates
- Tm tm(ToTimezone(GMT0).GetTm(GMT0));
+ // JDN are always expressed for the UTC dates
+ Tm tm(ToTimezone(UTC).GetTm(UTC));
double result = GetTruncatedJDN(tm.mday, tm.mon, tm.year);
{
time += (int)tz.GetOffset();
-#ifdef __VMS__ // time is unsigned so avoid the warning
+#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
int time2 = (int) time;
if ( time2 >= 0 )
#else
fmt = _T("%03d");
break;
+ case _T('w'): // week day as number has only one
+ fmt = _T("%d");
+ break;
+
default:
// it's either another valid format specifier in which case
// the format is "%02d" (for all the rest) or we have the
fmt = _T("%02d");
}
- bool restart = TRUE;
+ bool restart = true;
while ( restart )
{
- restart = FALSE;
+ restart = false;
// start of the format specification
switch ( *p )
{
case _T('a'): // a weekday name
case _T('A'):
- // second parameter should be TRUE for abbreviated names
+ // second parameter should be true for abbreviated names
res += GetWeekDayName(tm.GetWeekDay(),
*p == _T('a') ? Name_Abbr : Name_Full);
break;
fmt.Prepend(_T('%'));
fmt.Append(_T('d'));
- restart = TRUE;
+ restart = true;
break;
}
unsigned long num;
// what fields have we found?
- bool haveWDay = FALSE,
- haveYDay = FALSE,
- haveDay = FALSE,
- haveMon = FALSE,
- haveYear = FALSE,
- haveHour = FALSE,
- haveMin = FALSE,
- haveSec = FALSE;
-
- bool hourIsIn12hFormat = FALSE, // or in 24h one?
- isPM = FALSE; // AM by default
+ bool haveWDay = false,
+ haveYDay = false,
+ haveDay = false,
+ haveMon = false,
+ haveYear = false,
+ haveHour = false,
+ haveMin = false,
+ haveSec = false;
+
+ bool hourIsIn12hFormat = false, // or in 24h one?
+ isPM = false; // AM by default
// and the value of the items we have (init them to get rid of warnings)
wxDateTime_t sec = 0,
// parse the optional width
size_t width = 0;
- while ( isdigit(*++fmt) )
+ while ( wxIsdigit(*++fmt) )
{
width *= 10;
width += *fmt - _T('0');
}
+ // the default widths for the various fields
+ if ( !width )
+ {
+ switch ( *fmt )
+ {
+ case _T('Y'): // year has 4 digits
+ width = 4;
+ break;
+
+ case _T('j'): // day of year has 3 digits
+ case _T('l'): // milliseconds have 3 digits
+ width = 3;
+ break;
+
+ case _T('w'): // week day as number has only one
+ width = 1;
+ break;
+
+ default:
+ // default for all other fields
+ width = 2;
+ }
+ }
+
// then the format itself
switch ( *fmt )
{
return (wxChar *)NULL;
}
}
- haveWDay = TRUE;
+ haveWDay = true;
break;
case _T('b'): // a month name
return (wxChar *)NULL;
}
}
- haveMon = TRUE;
+ haveMon = true;
break;
case _T('c'): // locale default date and time representation
Tm tm = dt.GetTm();
haveDay = haveMon = haveYear =
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
hour = tm.hour;
min = tm.min;
// we can't check whether the day range is correct yet, will
// do it later - assume ok for now
- haveDay = TRUE;
+ haveDay = true;
mday = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveHour = TRUE;
+ haveHour = true;
hour = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveHour = TRUE;
- hourIsIn12hFormat = TRUE;
+ haveHour = true;
+ hourIsIn12hFormat = true;
hour = (wxDateTime_t)(num % 12); // 12 should be 0
break;
return (wxChar *)NULL;
}
- haveYDay = TRUE;
+ haveYDay = true;
yday = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveMon = TRUE;
+ haveMon = true;
mon = (Month)(num - 1);
break;
return (wxChar *)NULL;
}
- haveMin = TRUE;
+ haveMin = true;
min = (wxDateTime_t)num;
break;
wxString am, pm, token = GetAlphaToken(input);
GetAmPmStrings(&am, &pm);
+ if (am.IsEmpty() && pm.IsEmpty())
+ return (wxChar *)NULL; // no am/pm strings defined
if ( token.CmpNoCase(pm) == 0 )
{
- isPM = TRUE;
+ isPM = true;
}
else if ( token.CmpNoCase(am) != 0 )
{
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveHour = haveMin = TRUE;
+ haveHour = haveMin = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveSec = TRUE;
+ haveSec = true;
sec = (wxDateTime_t)num;
break;
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveWDay = TRUE;
+ haveWDay = true;
wday = (WeekDay)num;
break;
case _T('x'): // locale default date representation
#ifdef HAVE_STRPTIME
- // try using strptime() - it may fail even if the input is
+ // try using strptime() -- it may fail even if the input is
// correct but the date is out of range, so we will fall back
- // to our generic code anyhow (FIXME !Unicode friendly)
+ // to our generic code anyhow
{
struct tm tm;
- const wxChar *result = strptime(input, "%x", &tm);
+
+ const wxChar *result = CallStrptime(input, "%x", &tm);
if ( result )
{
input = result;
- haveDay = haveMon = haveYear = TRUE;
+ haveDay = haveMon = haveYear = true;
year = 1900 + tm.tm_year;
mon = (Month)tm.tm_mon;
Tm tm = dt.GetTm();
- haveDay = haveMon = haveYear = TRUE;
+ haveDay = haveMon = haveYear = true;
year = tm.year;
mon = tm.mon;
{
// use strptime() to do it for us (FIXME !Unicode friendly)
struct tm tm;
- input = strptime(input, "%X", &tm);
+ input = CallStrptime(input, "%X", &tm);
if ( !input )
{
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
hour = tm.tm_hour;
min = tm.tm_min;
return (wxChar *)NULL;
}
- haveHour = haveMin = haveSec = TRUE;
+ haveHour = haveMin = haveSec = true;
Tm tm = dt.GetTm();
hour = tm.hour;
return (wxChar *)NULL;
}
- haveYear = TRUE;
+ haveYear = true;
// TODO should have an option for roll over date instead of
// hard coding it here
return (wxChar *)NULL;
}
- haveYear = TRUE;
+ haveYear = true;
year = (wxDateTime_t)num;
break;
// take this date as default
tmDef = dateDef.GetTm();
}
-#ifdef __WIN16__
- else if ( m_time != 0 )
-#else
- else if ( m_time != wxLongLong(0) )
-#endif
+ else if ( IsValid() )
{
// if this date is valid, don't change it
tmDef = GetTm();
Set(tm);
+ // finally check that the week day is consistent -- if we had it
+ if ( haveWDay && GetWeekDay() != wday )
+ {
+ wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()"));
+
+ return NULL;
+ }
+
return input;
}
{
wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
- // there is a public domain version of getdate.y, but it only works for
- // English...
- wxFAIL_MSG(_T("TODO"));
+ // Set to current day and hour, so strings like '14:00' becomes today at
+ // 14, not some other random date
+ wxDateTime dtDate = wxDateTime::Today();
+ wxDateTime dtTime = wxDateTime::Today();
+
+ const wxChar* pchTime;
+
+ // Try to parse the beginning of the string as a date
+ const wxChar* pchDate = dtDate.ParseDate(date);
- return (wxChar *)NULL;
+ // We got a date in the beginning, see if there is a time specified after the date
+ if ( pchDate )
+ {
+ // Skip spaces, as the ParseTime() function fails on spaces
+ while ( wxIsspace(*pchDate) )
+ pchDate++;
+
+ pchTime = dtTime.ParseTime(pchDate);
+ }
+ else // no date in the beginning
+ {
+ // check and see if we have a time followed by a date
+ pchTime = dtTime.ParseTime(date);
+ if ( pchTime )
+ {
+ while ( wxIsspace(*pchTime) )
+ pchTime++;
+
+ pchDate = dtDate.ParseDate(pchTime);
+ }
+ }
+
+ // If we have a date specified, set our own data to the same date
+ if ( !pchDate || !pchTime )
+ return NULL;
+
+ Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(),
+ dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(),
+ dtTime.GetMillisecond());
+
+ // Return endpoint of scan
+ return pchDate > pchTime ? pchDate : pchTime;
}
const wxChar *wxDateTime::ParseDate(const wxChar *date)
// have the ability to back track.
// what do we have?
- bool haveDay = FALSE, // the months day?
- haveWDay = FALSE, // the day of week?
- haveMon = FALSE, // the month?
- haveYear = FALSE; // the year?
+ bool haveDay = false, // the months day?
+ haveWDay = false, // the day of week?
+ haveMon = false, // the month?
+ haveYear = false; // the year?
// and the value of the items we have (init them to get rid of warnings)
WeekDay wday = Inv_WeekDay;
// tokenize the string
size_t nPosCur = 0;
- static const wxChar *dateDelimiters = _T(".,/-\t\n ");
+ static const wxChar *dateDelimiters = _T(".,/-\t\r\n ");
wxStringTokenizer tok(p, dateDelimiters);
while ( tok.HasMoreTokens() )
{
{
// guess what this number is
- bool isDay = FALSE,
- isMonth = FALSE,
- isYear = FALSE;
+ bool isDay = false,
+ isMonth = false,
+ isYear = false;
if ( !haveMon && val > 0 && val <= 12 )
{
// assume it is month
- isMonth = TRUE;
+ isMonth = true;
}
else // not the month
{
- wxDateTime_t maxDays = haveMon
- ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)
- : 31;
-
- // can it be day?
- if ( (val == 0) || (val > maxDays) )
+ if ( haveDay )
{
- isYear = TRUE;
+ // this can only be the year
+ isYear = true;
}
- else
+ else // may be either day or year
{
- isDay = TRUE;
+ wxDateTime_t maxDays = haveMon
+ ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)
+ : 31;
+
+ // can it be day?
+ if ( (val == 0) || (val > (unsigned long)maxDays) )
+ {
+ // no
+ isYear = true;
+ }
+ else // yes, suppose it's the day
+ {
+ isDay = true;
+ }
}
}
if ( haveYear )
break;
- haveYear = TRUE;
+ haveYear = true;
year = (wxDateTime_t)val;
}
if ( haveDay )
break;
- haveDay = TRUE;
+ haveDay = true;
day = (wxDateTime_t)val;
}
else if ( isMonth )
{
- haveMon = TRUE;
+ haveMon = true;
mon = (Month)(val - 1);
}
// it's a month
if ( haveMon )
{
- break;
+ // but we already have a month - maybe we guessed wrong?
+ if ( !haveDay )
+ {
+ // no need to check in month range as always < 12, but
+ // the days are counted from 1 unlike the months
+ day = (wxDateTime_t)mon + 1;
+ haveDay = true;
+ }
+ else
+ {
+ // could possible be the year (doesn't the year come
+ // before the month in the japanese format?) (FIXME)
+ break;
+ }
}
mon = mon2;
- haveMon = TRUE;
+ haveMon = true;
}
- else
+ else // not a valid month name
{
wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
if ( wday != Inv_WeekDay )
break;
}
- haveWDay = TRUE;
+ haveWDay = true;
}
- else
+ else // not a valid weekday name
{
// try the ordinals
static const wxChar *ordinals[] =
wxTRANSLATE("nineteenth"),
wxTRANSLATE("twentieth"),
// that's enough - otherwise we'd have problems with
- // composite (or not) ordinals otherwise
+ // composite (or not) ordinals
};
size_t n;
break;
}
- haveDay = TRUE;
+ haveDay = true;
- day = n + 1;
+ day = (wxDateTime_t)(n + 1);
}
}
}
mon = (wxDateTime::Month)(day - 1);
// we're in the current year then
- if ( year <= GetNumOfDaysInMonth(Inv_Year, mon) )
+ if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
{
day = year;
- haveMon = TRUE;
- haveYear = FALSE;
+ haveMon = true;
+ haveYear = false;
}
- //else: no, can't exchange, leave haveMon == FALSE
+ //else: no, can't exchange, leave haveMon == false
}
}
size_t len = timeString.length();
if ( timeString.CmpNoCase(wxString(time, len)) == 0 )
{
- Set(stdTimes[n].hour, 0, 0);
+ // casts required by DigitalMars
+ Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0));
return time + len;
}
}
- // try all time formats we may think about starting with the standard one
- const wxChar *result = ParseFormat(time, _T("%X"));
+ // try all time formats we may think about in the order from longest to
+ // shortest
+
+ // 12hour with AM/PM?
+ const wxChar *result = ParseFormat(time, _T("%I:%M:%S %p"));
+
if ( !result )
{
// normally, it's the same, but why not try it?
if ( !result )
{
- // 12hour with AM/PM?
- result = ParseFormat(time, _T("%I:%M:%S %p"));
+ // 12hour with AM/PM but without seconds?
+ result = ParseFormat(time, _T("%I:%M %p"));
}
if ( !result )
if ( !result )
{
- // 12hour with AM/PM but without seconds?
- result = ParseFormat(time, _T("%I:%M %p"));
+ // just the hour and AM/PM?
+ result = ParseFormat(time, _T("%I %p"));
}
if ( !result )
if ( !result )
{
- // just the hour and AM/PM?
- result = ParseFormat(time, _T("%I %p"));
+ // parse the standard format: normally it is one of the formats above
+ // but it may be set to something completely different by the user
+ result = ParseFormat(time, _T("%X"));
}
// TODO: parse timezones
// wxTimeSpan
// ============================================================================
+// this enum is only used in wxTimeSpan::Format() below but we can't declare
+// it locally to the method as it provokes an internal compiler error in egcs
+// 2.91.60 when building with -O2
+enum TimeSpanPart
+{
+ Part_Week,
+ Part_Day,
+ Part_Hour,
+ Part_Min,
+ Part_Sec,
+ Part_MSec
+};
+
// not all strftime(3) format specifiers make sense here because, for example,
// a time span doesn't have a year nor a timezone
//
wxString str;
str.Alloc(wxStrlen(format));
+ // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */)
+ //
+ // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the
+ // question is what should ts.Format("%S") do? The code here returns "3273"
+ // in this case (i.e. the total number of seconds, not just seconds % 60)
+ // because, for me, this call means "give me entire time interval in
+ // seconds" and not "give me the seconds part of the time interval"
+ //
+ // If we agree that it should behave like this, it is clear that the
+ // interpretation of each format specifier depends on the presence of the
+ // other format specs in the string: if there was "%H" before "%M", we
+ // should use GetMinutes() % 60, otherwise just GetMinutes() &c
+
+ // we remember the most important unit found so far
+ TimeSpanPart partBiggest = Part_MSec;
+
for ( const wxChar *pch = format; *pch; pch++ )
{
wxChar ch = *pch;
if ( ch == _T('%') )
{
- wxString tmp;
+ // the start of the format specification of the printf() below
+ wxString fmtPrefix = _T('%');
+
+ // the number
+ long n;
ch = *++pch; // get the format spec char
switch ( ch )
// fall through
case _T('%'):
- // will get to str << ch below
- break;
+ str += ch;
+
+ // skip the part below switch
+ continue;
case _T('D'):
- tmp.Printf(_T("%d"), GetDays());
+ n = GetDays();
+ if ( partBiggest < Part_Day )
+ {
+ n %= DAYS_PER_WEEK;
+ }
+ else
+ {
+ partBiggest = Part_Day;
+ }
break;
case _T('E'):
- tmp.Printf(_T("%d"), GetWeeks());
+ partBiggest = Part_Week;
+ n = GetWeeks();
break;
case _T('H'):
- tmp.Printf(_T("%02d"), GetHours());
+ n = GetHours();
+ if ( partBiggest < Part_Hour )
+ {
+ n %= HOURS_PER_DAY;
+ }
+ else
+ {
+ partBiggest = Part_Hour;
+ }
+
+ fmtPrefix += _T("02");
break;
case _T('l'):
- tmp.Printf(_T("%03ld"), GetMilliseconds().ToLong());
+ n = GetMilliseconds().ToLong();
+ if ( partBiggest < Part_MSec )
+ {
+ n %= 1000;
+ }
+ //else: no need to reset partBiggest to Part_MSec, it is
+ // the least significant one anyhow
+
+ fmtPrefix += _T("03");
break;
case _T('M'):
- tmp.Printf(_T("%02d"), GetMinutes());
+ n = GetMinutes();
+ if ( partBiggest < Part_Min )
+ {
+ n %= MIN_PER_HOUR;
+ }
+ else
+ {
+ partBiggest = Part_Min;
+ }
+
+ fmtPrefix += _T("02");
break;
case _T('S'):
- tmp.Printf(_T("%02ld"), GetSeconds().ToLong());
+ n = GetSeconds().ToLong();
+ if ( partBiggest < Part_Sec )
+ {
+ n %= SEC_PER_MIN;
+ }
+ else
+ {
+ partBiggest = Part_Sec;
+ }
+
+ fmtPrefix += _T("02");
break;
}
- if ( !!tmp )
- {
- str += tmp;
-
- // skip str += ch below
- continue;
- }
+ str += wxString::Format(fmtPrefix + _T("ld"), n);
+ }
+ else
+ {
+ // normal character, just copy
+ str += ch;
}
-
- str += ch;
}
return str;
/* static */
bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt)
{
- size_t count = ms_authorities.GetCount();
+ size_t count = ms_authorities.size();
for ( size_t n = 0; n < count; n++ )
{
if ( ms_authorities[n]->DoIsHoliday(dt) )
{
- return TRUE;
+ return true;
}
}
- return FALSE;
+ return false;
}
/* static */
{
wxDateTimeArray hol;
- holidays.Empty();
+ holidays.Clear();
- size_t count = ms_authorities.GetCount();
+ size_t count = ms_authorities.size();
for ( size_t nAuth = 0; nAuth < count; nAuth++ )
{
ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
holidays.Sort(wxDateTimeCompareFunc);
- return holidays.GetCount();
+ return holidays.size();
}
/* static */
/* static */
void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
{
- ms_authorities.Add(auth);
+ ms_authorities.push_back(auth);
+}
+
+wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
+{
+ // nothing to do here
}
// ----------------------------------------------------------------------------
return holidays.GetCount();
}
-
+#endif // wxUSE_DATETIME
projects / wxWidgets.git / blobdiff