Fixed old FIXME about unsigned result of sunstraction + a few changes to be able...

[wxWidgets.git] / src / common / datetime.cpp

diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 4aec62ea5c346203c21417633083a77d4ec6d20b..9a102f00c6542048fba363bc95316d1dd75d71c2 100644 (file)
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -500,7 +500,7 @@ static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
             break;
     }
 
             break;
     }
 

-    return !s.IsEmpty() && s.ToULong(number);
+    return !s.empty() && s.ToULong(number);

 }
 
 // scans all alphabetic characters and returns the resulting string
 }
 
 // scans all alphabetic characters and returns the resulting string


@@ -536,14 +536,14 @@ wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz)
               : m_tz(tz)
 {
     msec = 0;
               : m_tz(tz)
 {
     msec = 0;

-    sec = tm.tm_sec;
-    min = tm.tm_min;
-    hour = tm.tm_hour;
-    mday = tm.tm_mday;
+    sec = (wxDateTime::wxDateTime_t)tm.tm_sec;
+    min = (wxDateTime::wxDateTime_t)tm.tm_min;
+    hour = (wxDateTime::wxDateTime_t)tm.tm_hour;
+    mday = (wxDateTime::wxDateTime_t)tm.tm_mday;

     mon = (wxDateTime::Month)tm.tm_mon;
     year = 1900 + tm.tm_year;
     mon = (wxDateTime::Month)tm.tm_mon;
     year = 1900 + tm.tm_year;

-    wday = tm.tm_wday;
-    yday = tm.tm_yday;
+    wday = (wxDateTime::wxDateTime_t)tm.tm_wday;
+    yday = (wxDateTime::wxDateTime_t)tm.tm_yday;

 }
 
 bool wxDateTime::Tm::IsValid() const
 }
 
 bool wxDateTime::Tm::IsValid() const


@@ -559,7 +559,7 @@ 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
     // 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::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7;
+    wday = (wxDateTime::wxDateTime_t)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7);

 }
 
 void wxDateTime::Tm::AddMonths(int monDiff)
 }
 
 void wxDateTime::Tm::AddMonths(int monDiff)


@@ -597,7 +597,7 @@ void wxDateTime::Tm::AddDays(int dayDiff)
         dayDiff += GetNumOfDaysInMonth(year, mon);
     }
 
         dayDiff += GetNumOfDaysInMonth(year, mon);
     }
 

-    mday += dayDiff;
+    mday = (wxDateTime::wxDateTime_t)( mday + dayDiff );

     while ( mday > GetNumOfDaysInMonth(year, mon) )
     {
         mday -= GetNumOfDaysInMonth(year, mon);
     while ( mday > GetNumOfDaysInMonth(year, mon) )
     {
         mday -= GetNumOfDaysInMonth(year, mon);


@@ -1168,16 +1168,11 @@ wxDateTime& wxDateTime::Set(const struct tm& tm)
         // less than timezone - try to make it work for this case
         if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 )
         {
         // less than timezone - try to make it work for this case
         if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 )
         {

-            // add timezone to make sure that date is in range
-            tm2.tm_sec -= GetTimeZone();
-
-            timet = mktime(&tm2);
-            if ( timet != (time_t)-1 )
-            {
-                timet += GetTimeZone();
-
-                return Set(timet);
-            }
+            return Set((time_t)(
+                       GetTimeZone() +
+                       tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN +
+                       tm2.tm_min * SEC_PER_MIN +
+                       tm2.tm_sec));

         }
 
         wxFAIL_MSG( _T("mktime() failed") );
         }
 
         wxFAIL_MSG( _T("mktime() failed") );


@@ -1262,7 +1257,10 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day,
         (void)Set(tm);
 
         // and finally adjust milliseconds
         (void)Set(tm);
 
         // and finally adjust milliseconds

-        return SetMillisecond(millisec);
+        if (IsValid())
+            SetMillisecond(millisec);
+
+        return *this;

     }
     else
     {
     }
     else
     {


@@ -1646,19 +1644,49 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff)
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 

-bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
-                              WeekDay weekday,
-                              WeekFlags flags)
+// convert Sun, Mon, ..., Sat into 6, 0, ..., 5
+static inline int ConvertWeekDayToMondayBase(int wd)
+{
+    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") );
 
 {
     wxASSERT_MSG( numWeek > 0,
                   _T("invalid week number: weeks are counted from 1") );
 

-    int year = GetYear();
+    // 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
     // Jan 4 always lies in the 1st week of the year

-    Set(4, Jan, year);
-    SetToWeekDayInSameWeek(weekday, flags) += wxDateSpan::Weeks(numWeek - 1);
+    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
     if ( GetYear() != year )
     {
         // oops... numWeek was too big


@@ -1668,6 +1696,13 @@ bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
     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,
                                           int year)
 {
 wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
                                           int year)
 {


@@ -1836,7 +1871,7 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday,
 static inline
 wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm)
 {
 static inline
 wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm)
 {

-    return gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday;
+    return (wxDateTime::wxDateTime_t)(gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday);

 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const


@@ -1844,12 +1879,6 @@ wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
     return GetDayOfYearFromTm(GetTm(tz));
 }
 
     return GetDayOfYearFromTm(GetTm(tz));
 }
 

-// convert Sun, Mon, ..., Sat into 6, 0, ..., 5
-static inline int ConvertWeekDayToMondayBase(int wd)
-{
-    return wd == wxDateTime::Sun ? 6 : wd - 1;
-}
-

 wxDateTime::wxDateTime_t
 wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const
 {
 wxDateTime::wxDateTime_t
 wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const
 {


@@ -1910,7 +1939,7 @@ wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const
         }
     }
 
         }
     }
 

-    return week;
+    return (wxDateTime::wxDateTime_t)week;

 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,
 }
 
 wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,


@@ -1943,7 +1972,7 @@ wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
         // yday lies in December then
         if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) )
         {
         // yday lies in December then
         if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) )
         {

-            Set(yday - gs_cumulatedDays[isLeap][mon], mon, year);
+            Set((wxDateTime::wxDateTime_t)(yday - gs_cumulatedDays[isLeap][mon]), mon, year);

 
             break;
         }
 
             break;
         }


@@ -2363,7 +2392,7 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                         fmt += *p;
                     }
 
                         fmt += *p;
                     }
 

-                    if ( !fmt.IsEmpty() )
+                    if ( !fmt.empty() )

                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));
                     {
                         // we've only got the flags and width so far in fmt
                         fmt.Prepend(_T('%'));


@@ -2436,11 +2465,11 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 

-    wxDateTime_t day = *p++ - _T('0');
+    wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0'));

     if ( wxIsdigit(*p) )
     {
         day *= 10;
     if ( wxIsdigit(*p) )
     {
         day *= 10;

-        day += *p++ - _T('0');
+        day = (wxDateTime_t)(day + (*p++ - _T('0')));

     }
 
     if ( *p++ != _T(' ') )
     }
 
     if ( *p++ != _T(' ') )


@@ -2534,7 +2563,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 

-    wxDateTime_t hour = *p++ - _T('0');
+    wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0'));

 
     if ( !wxIsdigit(*p) )
     {
 
     if ( !wxIsdigit(*p) )
     {


@@ -2542,7 +2571,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     hour *= 10;
     }
 
     hour *= 10;

-    hour += *p++ - _T('0');
+    hour = (wxDateTime_t)(hour + (*p++ - _T('0')));

 
     if ( *p++ != _T(':') )
     {
 
     if ( *p++ != _T(':') )
     {


@@ -2554,7 +2583,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         return (wxChar *)NULL;
     }
 
         return (wxChar *)NULL;
     }
 

-    wxDateTime_t min = *p++ - _T('0');
+    wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0'));

 
     if ( !wxIsdigit(*p) )
     {
 
     if ( !wxIsdigit(*p) )
     {


@@ -2562,7 +2591,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
     }
 
     min *= 10;
     }
 
     min *= 10;

-    min += *p++ - _T('0');
+    min = (wxDateTime_t)(min + *p++ - _T('0'));

 
     wxDateTime_t sec = 0;
     if ( *p++ == _T(':') )
 
     wxDateTime_t sec = 0;
     if ( *p++ == _T(':') )


@@ -2572,7 +2601,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
             return (wxChar *)NULL;
         }
 
             return (wxChar *)NULL;
         }
 

-        sec = *p++ - _T('0');
+        sec = (wxDateTime_t)(*p++ - _T('0'));

 
         if ( !wxIsdigit(*p) )
         {
 
         if ( !wxIsdigit(*p) )
         {


@@ -2580,7 +2609,7 @@ const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
         }
 
         sec *= 10;
         }
 
         sec *= 10;

-        sec += *p++ - _T('0');
+        sec = (wxDateTime_t)(sec + *p++ - _T('0'));

     }
 
     if ( *p++ != _T(' ') )
     }
 
     if ( *p++ != _T(' ') )


@@ -2935,7 +2964,7 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);
                     wxString am, pm, token = GetAlphaToken(input);
 
                     GetAmPmStrings(&am, &pm);

-                    if (am.IsEmpty() && pm.IsEmpty())
+                    if (am.empty() && pm.empty())

                         return (wxChar *)NULL;  // no am/pm strings defined
                     if ( token.CmpNoCase(pm) == 0 )
                     {
                         return (wxChar *)NULL;  // no am/pm strings defined
                     if ( token.CmpNoCase(pm) == 0 )
                     {


@@ -3361,19 +3390,23 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
     {
         wxString date = wxGetTranslation(literalDates[n].str);
         size_t len = date.length();
     {
         wxString date = wxGetTranslation(literalDates[n].str);
         size_t len = date.length();

-        if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 0) )
+        if ( wxStrlen(p) >= len )

         {
         {

-            // nothing can follow this, so stop here
-            p += len;
-
-            int dayDiffFromToday = literalDates[n].dayDiffFromToday;
-            *this = Today();
-            if ( dayDiffFromToday )
+            wxString str(p, len);
+            if ( str.CmpNoCase(date) == 0 )

             {
             {

-                *this += wxDateSpan::Days(dayDiffFromToday);
-            }
+                // nothing can follow this, so stop here
+                p += len;

 
 

-            return p;
+                int dayDiffFromToday = literalDates[n].dayDiffFromToday;
+                *this = Today();
+                if ( dayDiffFromToday )
+                {
+                    *this += wxDateSpan::Days(dayDiffFromToday);
+                }
+
+                return p;
+            }

         }
     }
 
         }
     }
 


@@ -3428,9 +3461,11 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                 }
                 else // may be either day or year
                 {
                 }
                 else // may be either day or year
                 {

-                    wxDateTime_t maxDays = haveMon
+                    wxDateTime_t maxDays = (wxDateTime_t)(
+                        haveMon

                         ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)
                         ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)

-                        : 31;
+                        : 31
+                    );

 
                     // can it be day?
                     if ( (val == 0) || (val > (unsigned long)maxDays) )
 
                     // can it be day?
                     if ( (val == 0) || (val > (unsigned long)maxDays) )


@@ -3484,7 +3519,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                     {
                         // no need to check in month range as always < 12, but
                         // the days are counted from 1 unlike the months
                     {
                         // 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;
+                        day = (wxDateTime_t)(mon + 1);

                         haveDay = true;
                     }
                     else
                         haveDay = true;
                     }
                     else


@@ -3606,7 +3641,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
                 // we're in the current year then
                 if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
                 {
                 // we're in the current year then
                 if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
                 {

-                    day = year;
+                    day = (wxDateTime_t)year;

 
                     haveMon = true;
                     haveYear = false;
 
                     haveMon = true;
                     haveYear = false;


@@ -3995,7 +4030,7 @@ void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
 
 wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
 {
 
 wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
 {

-    // nothing to do here
+    // required here for Darwin

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------