X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/88a7a4e10ed18f81a576dcd866cfbf02bf404c00..82c126e50158efee5a1f46e1200be380c5199f8d:/src/common/datetime.cpp diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp index b27c1010bb..d1ce06ab39 100644 --- a/src/common/datetime.cpp +++ b/src/common/datetime.cpp @@ -16,10 +16,6 @@ // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -// TODO: for $DEITY sake, someone please fix the #ifdef __WXWINCE__ everywhere, -// the proper way to do it is to implement (subset of) wxStrftime() for -// CE instead of this horror!! - /* * Implementation notes: * @@ -66,19 +62,23 @@ #if !defined(wxUSE_DATETIME) || wxUSE_DATETIME #ifndef WX_PRECOMP + #ifdef __WXMSW__ + #include "wx/msw/wrapwin.h" + #endif #include "wx/string.h" #include "wx/log.h" #include "wx/intl.h" + #include "wx/stopwatch.h" // for wxGetLocalTimeMillis() + #include "wx/module.h" + #include "wx/crt.h" #endif // WX_PRECOMP #include "wx/thread.h" #include "wx/tokenzr.h" -#include "wx/module.h" #include #ifdef __WINDOWS__ - #include "wx/msw/wrapwin.h" #include #ifndef __WXWINCE__ #include @@ -86,7 +86,6 @@ #endif #include "wx/datetime.h" -#include "wx/stopwatch.h" // for wxGetLocalTimeMillis() const long wxDateTime::TIME_T_FACTOR = 1000l; @@ -139,6 +138,13 @@ wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter , wxFromStringCon #include #endif +// define a special symbol for VC8 instead of writing tests for 1400 repeatedly +#ifdef __VISUALC__ + #if __VISUALC__ >= 1400 + #define __VISUALC8__ + #endif +#endif + #if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM) #if defined(__WXPALMOS__) #define WX_GMTOFF_IN_TM @@ -164,11 +170,67 @@ wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter , wxFromStringCon #define WX_TIMEZONE wxGetTimeZone() #elif defined(__DARWIN__) #define WX_GMTOFF_IN_TM + #elif defined(__WXWINCE__) && defined(__VISUALC8__) + // _timezone is not present in dynamic run-time library + #if 0 + // Solution (1): use the function equivalent of _timezone + static long wxGetTimeZone() + { + static long s_Timezone = MAXLONG; // invalid timezone + if (s_Timezone == MAXLONG) + { + int t; + _get_timezone(& t); + s_Timezone = (long) t; + } + return s_Timezone; + } + #define WX_TIMEZONE wxGetTimeZone() + #elif 1 + // Solution (2): using GetTimeZoneInformation + static long wxGetTimeZone() + { + static long timezone = MAXLONG; // invalid timezone + if (timezone == MAXLONG) + { + TIME_ZONE_INFORMATION tzi; + ::GetTimeZoneInformation(&tzi); + timezone = tzi.Bias; + } + return timezone; + } + #define WX_TIMEZONE wxGetTimeZone() + #else + // Old method using _timezone: this symbol doesn't exist in the dynamic run-time library (i.e. using /MD) + #define WX_TIMEZONE _timezone + #endif #else // unknown platform - try timezone #define WX_TIMEZONE timezone #endif #endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM +// everyone has strftime except Win CE unless VC8 is used +#if !defined(__WXWINCE__) || defined(__VISUALC8__) + #define HAVE_STRFTIME +#endif + +// NB: VC8 safe time functions could/should be used for wxMSW as well probably +#if defined(__WXWINCE__) && defined(__VISUALC8__) + +struct tm *wxLocaltime_r(const time_t *t, struct tm* tm) +{ + __time64_t t64 = *t; + return _localtime64_s(tm, &t64) == 0 ? tm : NULL; +} + +struct tm *wxGmtime_r(const time_t* t, struct tm* tm) +{ + __time64_t t64 = *t; + return _gmtime64_s(tm, &t64) == 0 ? tm : NULL; +} + +#else // !wxWinCE with VC8 + #if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__) static wxMutex timeLock; #endif @@ -181,10 +243,21 @@ struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp) // thread local storage for localtime anyway. wxMutexLocker locker(timeLock); #endif - memcpy(temp, localtime(ticks), sizeof(struct tm)); + + // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438 +#ifdef __BORLANDC__ + if ( !*ticks ) + return NULL; +#endif + + const tm * const t = localtime(ticks); + if ( !t ) + return NULL; + + memcpy(temp, t, sizeof(struct tm)); return temp; } -#endif +#endif // !HAVE_LOCALTIME_R #ifndef HAVE_GMTIME_R struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) @@ -194,10 +267,22 @@ struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) // using thread local storage for gmtime anyway. wxMutexLocker locker(timeLock); #endif + +#ifdef __BORLANDC__ + if ( !*ticks ) + return NULL; +#endif + + const tm * const t = gmtime(ticks); + if ( !t ) + return NULL; + memcpy(temp, gmtime(ticks), sizeof(struct tm)); return temp; } -#endif +#endif // !HAVE_GMTIME_R + +#endif // wxWinCE with VC8/other platforms // ---------------------------------------------------------------------------- // macros @@ -395,9 +480,10 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, - JDN_OFFSET; } -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME + // this function is a wrapper around strftime(3) adding error checking -static wxString CallStrftime(const wxChar *format, const tm* tm) +static wxString CallStrftime(const wxString& format, const tm* tm) { wxChar buf[4096]; // Create temp wxString here to work around mingw/cygwin bug 1046059 @@ -413,7 +499,8 @@ static wxString CallStrftime(const wxChar *format, const tm* tm) s = buf; return s; } -#endif + +#endif // HAVE_STRFTIME #ifdef HAVE_STRPTIME @@ -627,7 +714,7 @@ void wxDateTime::Tm::ComputeWeekDay() // compute the week day from day/month/year: we use the dumbest algorithm // possible: just compute our JDN and then use the (simple to derive) // formula: weekday = (JDN + 1.5) % 7 - wday = (wxDateTime::wxDateTime_t)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7); + wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7); } void wxDateTime::Tm::AddMonths(int monDiff) @@ -719,6 +806,7 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) case wxDateTime::GMT10: case wxDateTime::GMT11: case wxDateTime::GMT12: + case wxDateTime::GMT13: m_offset = 3600*(tz - wxDateTime::GMT0); break; @@ -869,7 +957,7 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month, wxDateTime::NameFlags flags) { wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") ); -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME // notice that we must set all the fields to avoid confusing libc (GNU one // gets confused to a crash if we don't do this) tm tm; @@ -877,7 +965,7 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month, tm.tm_mon = month; return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm); -#else +#else // !HAVE_STRFTIME wxString ret; switch(month) { @@ -919,7 +1007,7 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month, break; } return ret; -#endif +#endif // HAVE_STRFTIME/!HAVE_STRFTIME } /* static */ @@ -927,7 +1015,7 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, wxDateTime::NameFlags flags) { wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") ); -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME // 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!) @@ -945,7 +1033,7 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, // ... and call strftime() return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm); -#else +#else // !HAVE_STRFTIME wxString ret; switch(wday) { @@ -972,8 +1060,7 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, break; } return ret; - -#endif +#endif // HAVE_STRFTIME/!HAVE_STRFTIME } /* static */ @@ -1051,9 +1138,9 @@ wxDateTime::Country wxDateTime::GetCountry() ms_country = USA; } } -#else +#else // __WXWINCE__ ms_country = USA; -#endif +#endif // !__WXWINCE__/__WXWINCE__ return ms_country; } @@ -1144,9 +1231,6 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(true); } else switch ( country ) { @@ -1245,9 +1329,6 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(true); } else switch ( country ) { @@ -1463,6 +1544,16 @@ wxDateTime& wxDateTime::ResetTime() return *this; } +wxDateTime wxDateTime::GetDateOnly() const +{ + Tm tm = GetTm(); + tm.msec = + tm.sec = + tm.min = + tm.hour = 0; + return wxDateTime(tm); +} + // ---------------------------------------------------------------------------- // DOS Date and Time Format functions // ---------------------------------------------------------------------------- @@ -1516,6 +1607,7 @@ unsigned long wxDateTime::GetAsDOS() const time_t ticks = GetTicks(); struct tm tmstruct; struct tm *tm = wxLocaltime_r(&ticks, &tmstruct); + wxCHECK_MSG( tm, ULONG_MAX, _T("time can't be represented in DOS format") ); long year = tm->tm_year; year -= 80; @@ -2214,13 +2306,16 @@ wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) // wxDateTime to/from text representations // ---------------------------------------------------------------------------- -wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const +wxString wxDateTime::Format(const wxString& format, const TimeZone& tz) const { - wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") ); + wxCHECK_MSG( !format.empty(), wxEmptyString, + _T("NULL format in wxDateTime::Format") ); // we have to use our own implementation if the date is out of range of // strftime() or if we use non standard specificators +#ifdef HAVE_STRFTIME time_t time = GetTicks(); + if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) ) { // use strftime() @@ -2255,15 +2350,14 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const tm = (struct tm *)NULL; } } -#ifndef __WXWINCE__ - //Windows CE doesn't support strftime or wcsftime, so we use the generic implementation + if ( tm ) { return CallStrftime(format, tm); } -#endif - //else: use generic code below } + //else: use generic code below +#endif // HAVE_STRFTIME // we only parse ANSI C format specifications here, no POSIX 2 // complications, no GNU extensions but we do add support for a "%l" format @@ -2283,7 +2377,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves wxString tmp, res, fmt; - for ( const wxChar *p = format; *p; p++ ) + for ( wxString::const_iterator p = format.begin(); p != format.end(); ++p ) { if ( *p != _T('%') ) { @@ -2294,7 +2388,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const } // set the default format - switch ( *++p ) + switch ( (*++p).GetValue() ) { case _T('Y'): // year has 4 digits fmt = _T("%04d"); @@ -2323,7 +2417,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const restart = false; // start of the format specification - switch ( *p ) + switch ( (*p).GetValue() ) { case _T('a'): // a weekday name case _T('A'): @@ -2340,7 +2434,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const case _T('c'): // locale default date and time representation case _T('x'): // locale default date representation -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME // // the problem: there is no way to know what do these format // specifications correspond to for the current locale. @@ -2362,7 +2456,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const // will change if one of these years is leap and the other one // is not! { - // find the YEAR: normally, for any year X, Jan 1 or the + // find the YEAR: normally, for any year X, Jan 1 of the // year X + 28 is the same weekday as Jan 1 of X (because // the weekday advances by 1 for each normal X and by 2 // for each leap X, hence by 5 every 4 years or by 35 @@ -2404,41 +2498,15 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const nLostWeekDays += year++ % 4 ? 1 : 2; } - // Keep year below 2000 so the 2digit year number - // can never match the month or day of the month - if (year>=2000) year-=28; - // at any rate, we couldn't go further than 1988 + 9 + 28! - wxASSERT_MSG( year < 2030, - _T("logic error in wxDateTime::Format") ); - - wxString strYear, strYear2; - strYear.Printf(_T("%d"), year); - strYear2.Printf(_T("%d"), year % 100); + // finally move the year below 2000 so that the 2-digit + // year number can never match the month or day of the + // month when we do the replacements below + if ( year >= 2000 ) + year -= 28; - // find four strings not occurring in format (this is surely - // not the optimal way of doing it... improvements welcome!) - wxString fmt2 = format; - wxString replacement,replacement2,replacement3,replacement4; - for (int rnr=1; rnr<5 ; rnr++) - { - wxString r = (wxChar)-rnr; - while ( fmt2.Find(r) != wxNOT_FOUND ) - { - r << (wxChar)-rnr; - } + wxASSERT_MSG( year >= 1970 && year < 2000, + _T("logic error in wxDateTime::Format") ); - switch (rnr) - { - case 1: replacement=r; break; - case 2: replacement2=r; break; - case 3: replacement3=r; break; - case 4: replacement4=r; break; - } - } - // replace all occurrences of year with it - bool wasReplaced = fmt2.Replace(strYear, replacement) > 0; - // evaluation order ensures we always attempt the replacement. - wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) | wasReplaced ; // use strftime() to format the same date but in supported // year @@ -2462,33 +2530,31 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const : _T("%x"), &tmAdjusted); - // now replace the occurrence of 1999 with the real year - // we do this in two stages to stop the 2 digit year - // matching any substring of the 4 digit year. - // Any day,month hours and minutes components should be safe due - // to ensuring the range of the years. - wxString strYearReal, strYearReal2; - strYearReal.Printf(_T("%04d"), yearReal); - strYearReal2.Printf(_T("%02d"), yearReal % 100); - str.Replace(strYear, replacement3); - str.Replace(strYear2,replacement4); - str.Replace(replacement3, strYearReal); - str.Replace(replacement4, strYearReal2); - - // and replace back all occurrences of replacement string - if ( wasReplaced ) - { - str.Replace(replacement2, strYear2); - str.Replace(replacement, strYear); - } + // now replace the replacement year with the real year: + // notice that we have to replace the 4 digit year with + // a unique string not appearing in strftime() output + // first to prevent the 2 digit year from matching any + // substring of the 4 digit year (but any day, month, + // hours or minutes components should be safe because + // they are never in 70-99 range) + wxString replacement("|"); + while ( str.find(replacement) != wxString::npos ) + replacement += '|'; + + str.Replace(wxString::Format("%d", year), + replacement); + str.Replace(wxString::Format("%d", year % 100), + wxString::Format("%d", yearReal % 100)); + str.Replace(replacement, + wxString::Format("%d", yearReal)); res += str; } -#else - //Use "%m/%d/%y %H:%M:%S" format instead +#else // !HAVE_STRFTIME + // Use "%m/%d/%y %H:%M:%S" format instead res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"), tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec); -#endif +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('d'): // day of a month (01-31) @@ -2525,11 +2591,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const break; case _T('p'): // AM or PM string -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%p"), &tmTimeOnly); -#else +#else // !HAVE_STRFTIME res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am"); -#endif +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('S'): // second as a decimal number (00-61) @@ -2552,11 +2618,11 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const case _T('X'): // locale default time representation // just use strftime() to format the time for us -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%X"), &tmTimeOnly); -#else +#else // !HAVE_STRFTIME res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec); -#endif +#endif // HAVE_STRFTIME/!HAVE_STRFTIME break; case _T('y'): // year without century (00-99) @@ -2568,7 +2634,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const break; case _T('Z'): // timezone name -#ifndef __WXWINCE__ +#ifdef HAVE_STRFTIME res += CallStrftime(_T("%Z"), &tmTimeOnly); #endif break; @@ -3071,10 +3137,10 @@ static wxString GetLocaleDateFormat() #endif // __WINDOWS__ const wxChar *wxDateTime::ParseFormat(const wxChar *date, - const wxChar *format, + const wxString& format, const wxDateTime& dateDef) { - wxCHECK_MSG( date && format, (wxChar *)NULL, + wxCHECK_MSG( date && !format.empty(), (wxChar *)NULL, _T("NULL pointer in wxDateTime::ParseFormat()") ); wxString str; @@ -3104,7 +3170,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, int year = 0; const wxChar *input = date; - for ( const wxChar *fmt = format; *fmt; fmt++ ) + for ( wxString::const_iterator fmt = format.begin(); fmt != format.end(); ++fmt ) { if ( *fmt != _T('%') ) { @@ -3145,7 +3211,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, // the default widths for the various fields if ( !width ) { - switch ( *fmt ) + switch ( (*fmt).GetValue() ) { case _T('Y'): // year has 4 digits width = 4; @@ -3167,7 +3233,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date, } // then the format itself - switch ( *fmt ) + switch ( (*fmt).GetValue() ) { case _T('a'): // a weekday name case _T('A'): @@ -3736,7 +3802,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) // some special cases static struct { - const wxChar *str; + const char *str; int dayDiffFromToday; } literalDates[] = { @@ -3911,7 +3977,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date) else // not a valid weekday name { // try the ordinals - static const wxChar *ordinals[] = + static const char *ordinals[] = { wxTRANSLATE("first"), wxTRANSLATE("second"), @@ -4077,7 +4143,7 @@ const wxChar *wxDateTime::ParseTime(const wxChar *time) // first try some extra things static const struct { - const wxChar *name; + const char *name; wxDateTime_t hour; } stdTimes[] = { @@ -4204,12 +4270,13 @@ enum TimeSpanPart // And, to be better than MFC :-), we also have // %E number of wEeks // %l milliseconds (000 - 999) -wxString wxTimeSpan::Format(const wxChar *format) const +wxString wxTimeSpan::Format(const wxString& format) const { - wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") ); + wxCHECK_MSG( !format.empty(), wxEmptyString, + _T("NULL format in wxTimeSpan::Format") ); wxString str; - str.Alloc(wxStrlen(format)); + str.Alloc(format.length()); // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */) // @@ -4227,18 +4294,21 @@ wxString wxTimeSpan::Format(const wxChar *format) const // we remember the most important unit found so far TimeSpanPart partBiggest = Part_MSec; - for ( const wxChar *pch = format; *pch; pch++ ) + for ( wxString::const_iterator pch = format.begin(); pch != format.end(); ++pch ) { wxChar ch = *pch; if ( ch == _T('%') ) { // the start of the format specification of the printf() below - wxString fmtPrefix = _T('%'); + wxString fmtPrefix(_T('%')); // the number long n; + // the number of digits for the format string, 0 if unused + unsigned digits = 0; + ch = *++pch; // get the format spec char switch ( ch ) { @@ -4273,6 +4343,13 @@ wxString wxTimeSpan::Format(const wxChar *format) const n = GetHours(); if ( partBiggest < Part_Hour ) { + if ( n < 0 ) + { + // the sign has already been taken into account + // when outputting the biggest part + n = -n; + } + n %= HOURS_PER_DAY; } else @@ -4280,25 +4357,31 @@ wxString wxTimeSpan::Format(const wxChar *format) const partBiggest = Part_Hour; } - fmtPrefix += _T("02"); + digits = 2; break; case _T('l'): n = GetMilliseconds().ToLong(); if ( partBiggest < Part_MSec ) { + if ( n < 0 ) + n = -n; + n %= 1000; } //else: no need to reset partBiggest to Part_MSec, it is // the least significant one anyhow - fmtPrefix += _T("03"); + digits = 3; break; case _T('M'): n = GetMinutes(); if ( partBiggest < Part_Min ) { + if ( n < 0 ) + n = -n; + n %= MIN_PER_HOUR; } else @@ -4306,13 +4389,16 @@ wxString wxTimeSpan::Format(const wxChar *format) const partBiggest = Part_Min; } - fmtPrefix += _T("02"); + digits = 2; break; case _T('S'): n = GetSeconds().ToLong(); if ( partBiggest < Part_Sec ) { + if ( n < 0 ) + n = -n; + n %= SEC_PER_MIN; } else @@ -4320,10 +4406,19 @@ wxString wxTimeSpan::Format(const wxChar *format) const partBiggest = Part_Sec; } - fmtPrefix += _T("02"); + digits = 2; break; } + if ( digits ) + { + // negative numbers need one extra position for '-' display + if ( n < 0 ) + digits++; + + fmtPrefix << _T("0") << digits; + } + str += wxString::Format(fmtPrefix + _T("ld"), n); } else