better spacing

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

diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 418a72f51c89faad35ac925dcfc6396774254732..d796e6e12743cb498ad38cfd90c4ccc80993cfc4 100644 (file)
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -13,7 +13,7 @@
 //               so long as the above copyright and this permission statement
 //               are retained in all copies.
 //
 //               so long as the above copyright and this permission statement
 //               are retained in all copies.
 //

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 /*
 ///////////////////////////////////////////////////////////////////////////////
 
 /*


@@ -97,13 +97,17 @@
     #undef HAVE_STRPTIME
 #endif // broken strptime()
 
     #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
     #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
         #define WX_TIMEZONE _timezone
     #elif defined(__MWERKS__)
         long wxmw_timezone = 28800;
         #define WX_TIMEZONE wxmw_timezone

-    #elif defined(__DJGPP__)
+    #elif defined(__DJGPP__) || defined(__WINE__)

         #include <sys/timeb.h>
         #include <values.h>
         static long wxGetTimeZone()
         #include <sys/timeb.h>
         #include <values.h>
         static long wxGetTimeZone()


@@ -118,10 +122,12 @@
             return timezone;
         }
         #define WX_TIMEZONE wxGetTimeZone()
             return timezone;
         }
         #define WX_TIMEZONE wxGetTimeZone()

+    #elif defined(__DARWIN__)
+        #define WX_GMTOFF_IN_TM

     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif
     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif

-#endif // !WX_TIMEZONE
+#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM

 
 // ----------------------------------------------------------------------------
 // macros
 
 // ----------------------------------------------------------------------------
 // macros


@@ -256,25 +262,42 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month)
     return daysInMonth[wxDateTime::IsLeapYear(year)][month];
 }
 
     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;
 static int GetTimeZone()
 {
     // set to TRUE when the timezone is set
     static bool s_timezoneSet = FALSE;

+#ifdef WX_GMTOFF_IN_TM
+    static long gmtoffset = LONG_MAX; // invalid timezone
+#endif

 
     wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
 
 
     wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
 

+    // 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
     if ( !s_timezoneSet )
     {
         // just call localtime() instead of figuring out whether this system
         // supports tzset(), _tzset() or something else

-        time_t                 t = 0;
+        time_t t = 0;
+        struct tm *tm;

 
 

-        (void)localtime(&t);
+        tm = localtime(&t);

         s_timezoneSet = TRUE;
         s_timezoneSet = TRUE;

+
+#ifdef WX_GMTOFF_IN_TM
+        // 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;
+#endif

     }
 
     }
 

+#ifdef WX_GMTOFF_IN_TM
+    return (int)gmtoffset;
+#else

     return (int)WX_TIMEZONE;
     return (int)WX_TIMEZONE;

+#endif

 }
 
 // return the integral part of the JDN for the midnight of the given date (to
 }
 
 // return the integral part of the JDN for the midnight of the given date (to


@@ -1234,6 +1257,82 @@ wxDateTime& wxDateTime::ResetTime()
     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;
+
+    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
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // time_t <-> broken down time conversions
 // ----------------------------------------------------------------------------


@@ -1481,13 +1580,18 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff)
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 
 // Weekday and monthday stuff
 // ----------------------------------------------------------------------------
 

-bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, WeekDay weekday)
+bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek,
+                              WeekDay weekday,
+                              WeekFlags flags)

 {
 {

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

-    SetToWeekDayInSameWeek(weekday) += wxDateSpan::Weeks(numWeek);
+    SetToWeekDayInSameWeek(weekday, flags) += wxDateSpan::Weeks(numWeek - 1);

 
     if ( GetYear() != year )
     {
 
     if ( GetYear() != year )
     {


@@ -1510,17 +1614,34 @@ wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
     return Set(GetNumOfDaysInMonth(year, month), month, year);
 }
 
     return Set(GetNumOfDaysInMonth(year, month), month, year);
 }
 

-wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday)
+wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)

 {
     wxDATETIME_CHECK( weekday != Inv_WeekDay, _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;
     }
     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));
     }
     {
         return Subtract(wxDateSpan::Days(wdayThis - weekday));
     }


@@ -1888,6 +2009,10 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
                 fmt = _T("%03d");
                 break;
 
                 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
             default:
                 // it's either another valid format specifier in which case
                 // the format is "%02d" (for all the rest) or we have the


@@ -2531,6 +2656,30 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
             width += *fmt - _T('0');
         }
 
             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 )
         {
         // then the format itself
         switch ( *fmt )
         {


@@ -3092,7 +3241,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
 
     // tokenize the string
     size_t nPosCur = 0;
 
     // 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() )
     {
     wxStringTokenizer tok(p, dateDelimiters);
     while ( tok.HasMoreTokens() )
     {