cb73e6001f
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23126 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
3929 lines
112 KiB
C++
3929 lines
112 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/datetime.h
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// Purpose: implementation of time/date related classes
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 11.05.99
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// parts of code taken from sndcal library by Scott E. Lee:
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//
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// Copyright 1993-1995, Scott E. Lee, all rights reserved.
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// Permission granted to use, copy, modify, distribute and sell
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// so long as the above copyright and this permission statement
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// are retained in all copies.
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//
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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/*
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* Implementation notes:
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*
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* 1. the time is stored as a 64bit integer containing the signed number of
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* milliseconds since Jan 1. 1970 (the Unix Epoch) - so it is always
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* expressed in GMT.
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*
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* 2. the range is thus something about 580 million years, but due to current
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* algorithms limitations, only dates from Nov 24, 4714BC are handled
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*
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* 3. standard ANSI C functions are used to do time calculations whenever
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* possible, i.e. when the date is in the range Jan 1, 1970 to 2038
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*
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* 4. otherwise, the calculations are done by converting the date to/from JDN
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* first (the range limitation mentioned above comes from here: the
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* algorithm used by Scott E. Lee's code only works for positive JDNs, more
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* or less)
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*
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* 5. the object constructed for the given DD-MM-YYYY HH:MM:SS corresponds to
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* this moment in local time and may be converted to the object
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* corresponding to the same date/time in another time zone by using
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* ToTimezone()
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*
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* 6. the conversions to the current (or any other) timezone are done when the
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* internal time representation is converted to the broken-down one in
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* wxDateTime::Tm.
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*/
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "datetime.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if !defined(wxUSE_DATETIME) || wxUSE_DATETIME
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#ifndef WX_PRECOMP
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#include "wx/string.h"
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#include "wx/log.h"
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#endif // WX_PRECOMP
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#include "wx/intl.h"
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#include "wx/thread.h"
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#include "wx/tokenzr.h"
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#include "wx/module.h"
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#include <ctype.h>
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#include "wx/datetime.h"
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#include "wx/stopwatch.h" // for wxGetLocalTimeMillis()
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const long wxDateTime::TIME_T_FACTOR = 1000l;
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#if wxUSE_EXTENDED_RTTI
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template<> void wxStringReadValue(const wxString &s , wxDateTime &data )
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{
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data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ;
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}
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template<> void wxStringWriteValue(wxString &s , const wxDateTime &data )
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{
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s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ;
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}
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WX_CUSTOM_TYPE_INFO(wxDateTime)
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#endif
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//
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// ----------------------------------------------------------------------------
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// conditional compilation
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// ----------------------------------------------------------------------------
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#if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \
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((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0))
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// glibc 2.0.7 strptime() is broken - the following snippet causes it to
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// crash (instead of just failing):
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//
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// strncpy(buf, "Tue Dec 21 20:25:40 1999", 128);
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// strptime(buf, "%x", &tm);
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//
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// so don't use it
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#undef HAVE_STRPTIME
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#endif // broken strptime()
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#if defined(__MWERKS__) && wxUSE_UNICODE
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#include <wtime.h>
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#endif
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#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
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#if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
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#define WX_TIMEZONE _timezone
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#elif defined(__MWERKS__)
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long wxmw_timezone = 28800;
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#define WX_TIMEZONE wxmw_timezone
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#elif defined(__DJGPP__) || defined(__WINE__)
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#include <sys/timeb.h>
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#include <values.h>
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static long wxGetTimeZone()
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{
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static long timezone = MAXLONG; // invalid timezone
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if (timezone == MAXLONG)
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{
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struct timeb tb;
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ftime(&tb);
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timezone = tb.timezone;
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}
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return timezone;
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}
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#define WX_TIMEZONE wxGetTimeZone()
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#elif defined(__DARWIN__)
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#define WX_GMTOFF_IN_TM
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#else // unknown platform - try timezone
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#define WX_TIMEZONE timezone
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#endif
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#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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// debugging helper: just a convenient replacement of wxCHECK()
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#define wxDATETIME_CHECK(expr, msg) \
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if ( !(expr) ) \
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{ \
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wxFAIL_MSG(msg); \
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*this = wxInvalidDateTime; \
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return *this; \
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}
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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class wxDateTimeHolidaysModule : public wxModule
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{
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public:
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virtual bool OnInit()
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{
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wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays);
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return TRUE;
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}
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virtual void OnExit()
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{
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wxDateTimeHolidayAuthority::ClearAllAuthorities();
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wxDateTimeHolidayAuthority::ms_authorities.clear();
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}
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private:
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DECLARE_DYNAMIC_CLASS(wxDateTimeHolidaysModule)
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};
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IMPLEMENT_DYNAMIC_CLASS(wxDateTimeHolidaysModule, wxModule)
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// some trivial ones
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static const int MONTHS_IN_YEAR = 12;
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static const int SEC_PER_MIN = 60;
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static const int MIN_PER_HOUR = 60;
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static const int HOURS_PER_DAY = 24;
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static const long SECONDS_PER_DAY = 86400l;
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static const int DAYS_PER_WEEK = 7;
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static const long MILLISECONDS_PER_DAY = 86400000l;
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// this is the integral part of JDN of the midnight of Jan 1, 1970
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// (i.e. JDN(Jan 1, 1970) = 2440587.5)
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static const long EPOCH_JDN = 2440587l;
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// the date of JDN -0.5 (as we don't work with fractional parts, this is the
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// reference date for us) is Nov 24, 4714BC
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static const int JDN_0_YEAR = -4713;
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static const int JDN_0_MONTH = wxDateTime::Nov;
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static const int JDN_0_DAY = 24;
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// the constants used for JDN calculations
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static const long JDN_OFFSET = 32046l;
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static const long DAYS_PER_5_MONTHS = 153l;
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static const long DAYS_PER_4_YEARS = 1461l;
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static const long DAYS_PER_400_YEARS = 146097l;
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// this array contains the cumulated number of days in all previous months for
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// normal and leap years
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static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] =
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{
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{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 },
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{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 }
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};
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// ----------------------------------------------------------------------------
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// global data
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// ----------------------------------------------------------------------------
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// in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to
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// indicate an invalid wxDateTime object
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const wxDateTime wxDefaultDateTime;
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wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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// debugger helper: shows what the date really is
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#ifdef __WXDEBUG__
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extern const wxChar *wxDumpDate(const wxDateTime* dt)
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{
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static wxChar buf[128];
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wxStrcpy(buf, dt->Format(_T("%Y-%m-%d (%a) %H:%M:%S")));
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return buf;
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}
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#endif // Debug
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// get the number of days in the given month of the given year
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static inline
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wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month)
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{
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// the number of days in month in Julian/Gregorian calendar: the first line
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// is for normal years, the second one is for the leap ones
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static wxDateTime::wxDateTime_t daysInMonth[2][MONTHS_IN_YEAR] =
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{
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{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
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{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
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};
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return daysInMonth[wxDateTime::IsLeapYear(year)][month];
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}
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// returns the time zone in the C sense, i.e. the difference UTC - local
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// (in seconds)
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static int GetTimeZone()
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{
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#ifdef WX_GMTOFF_IN_TM
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// set to TRUE when the timezone is set
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static bool s_timezoneSet = FALSE;
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static long gmtoffset = LONG_MAX; // invalid timezone
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// ensure that the timezone variable is set by calling localtime
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if ( !s_timezoneSet )
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{
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// just call localtime() instead of figuring out whether this system
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// supports tzset(), _tzset() or something else
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time_t t = 0;
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struct tm *tm;
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tm = localtime(&t);
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s_timezoneSet = TRUE;
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// note that GMT offset is the opposite of time zone and so to return
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// consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM
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// cases we have to negate it
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gmtoffset = -tm->tm_gmtoff;
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}
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return (int)gmtoffset;
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#else // !WX_GMTOFF_IN_TM
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return (int)WX_TIMEZONE;
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#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
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}
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// return the integral part of the JDN for the midnight of the given date (to
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// get the real JDN you need to add 0.5, this is, in fact, JDN of the
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// noon of the previous day)
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static long GetTruncatedJDN(wxDateTime::wxDateTime_t day,
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wxDateTime::Month mon,
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int year)
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{
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// CREDIT: code below is by Scott E. Lee (but bugs are mine)
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// check the date validity
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wxASSERT_MSG(
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(year > JDN_0_YEAR) ||
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((year == JDN_0_YEAR) && (mon > JDN_0_MONTH)) ||
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((year == JDN_0_YEAR) && (mon == JDN_0_MONTH) && (day >= JDN_0_DAY)),
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_T("date out of range - can't convert to JDN")
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);
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// make the year positive to avoid problems with negative numbers division
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year += 4800;
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// months are counted from March here
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int month;
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if ( mon >= wxDateTime::Mar )
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{
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month = mon - 2;
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}
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else
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{
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month = mon + 10;
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year--;
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}
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// now we can simply add all the contributions together
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return ((year / 100) * DAYS_PER_400_YEARS) / 4
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+ ((year % 100) * DAYS_PER_4_YEARS) / 4
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+ (month * DAYS_PER_5_MONTHS + 2) / 5
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+ day
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- JDN_OFFSET;
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}
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// this function is a wrapper around strftime(3) adding error checking
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static wxString CallStrftime(const wxChar *format, const tm* tm)
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{
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wxChar buf[4096];
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if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) )
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{
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// buffer is too small?
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wxFAIL_MSG(_T("strftime() failed"));
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}
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return wxString(buf);
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}
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#ifdef HAVE_STRPTIME
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// glibc2 doesn't define this in the headers unless _XOPEN_SOURCE is defined
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// which, unfortunately, wreaks havoc elsewhere
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#if defined(__GLIBC__) && (__GLIBC__ == 2)
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extern "C" char *strptime(const char *, const char *, struct tm *);
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#endif
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// Unicode-friendly strptime() wrapper
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static const wxChar *
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CallStrptime(const wxChar *input, const char *fmt, tm *tm)
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{
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// the problem here is that strptime() returns pointer into the string we
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// passed to it while we're really interested in the pointer into the
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// original, Unicode, string so we try to transform the pointer back
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#if wxUSE_UNICODE
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wxCharBuffer inputMB(wxConvertWX2MB(input));
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#else // ASCII
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const char * const inputMB = input;
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#endif // Unicode/Ascii
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const char *result = strptime(inputMB, fmt, tm);
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if ( !result )
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return NULL;
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#if wxUSE_UNICODE
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// FIXME: this is wrong in presence of surrogates &c
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return input + (result - inputMB.data());
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#else // ASCII
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return result;
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#endif // Unicode/Ascii
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}
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#endif // HAVE_STRPTIME
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// if year and/or month have invalid values, replace them with the current ones
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static void ReplaceDefaultYearMonthWithCurrent(int *year,
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wxDateTime::Month *month)
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{
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struct tm *tmNow = NULL;
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if ( *year == wxDateTime::Inv_Year )
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{
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tmNow = wxDateTime::GetTmNow();
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*year = 1900 + tmNow->tm_year;
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}
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if ( *month == wxDateTime::Inv_Month )
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{
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if ( !tmNow )
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tmNow = wxDateTime::GetTmNow();
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*month = (wxDateTime::Month)tmNow->tm_mon;
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}
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}
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// fll the struct tm with default values
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static void InitTm(struct tm& tm)
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{
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// struct tm may have etxra fields (undocumented and with unportable
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// names) which, nevertheless, must be set to 0
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memset(&tm, 0, sizeof(struct tm));
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tm.tm_mday = 1; // mday 0 is invalid
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tm.tm_year = 76; // any valid year
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tm.tm_isdst = -1; // auto determine
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}
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// parsing helpers
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// ---------------
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// return the month if the string is a month name or Inv_Month otherwise
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static wxDateTime::Month GetMonthFromName(const wxString& name, int flags)
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{
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wxDateTime::Month mon;
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for ( mon = wxDateTime::Jan; mon < wxDateTime::Inv_Month; wxNextMonth(mon) )
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{
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// case-insensitive comparison either one of or with both abbreviated
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// and not versions
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if ( flags & wxDateTime::Name_Full )
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{
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if ( name.CmpNoCase(wxDateTime::
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GetMonthName(mon, wxDateTime::Name_Full)) == 0 )
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{
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break;
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}
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}
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if ( flags & wxDateTime::Name_Abbr )
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{
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if ( name.CmpNoCase(wxDateTime::
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GetMonthName(mon, wxDateTime::Name_Abbr)) == 0 )
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{
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break;
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}
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}
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}
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return mon;
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}
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// return the weekday if the string is a weekday name or Inv_WeekDay otherwise
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static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags)
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{
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wxDateTime::WeekDay wd;
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for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
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{
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// case-insensitive comparison either one of or with both abbreviated
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// and not versions
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if ( flags & wxDateTime::Name_Full )
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{
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if ( name.CmpNoCase(wxDateTime::
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GetWeekDayName(wd, wxDateTime::Name_Full)) == 0 )
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{
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break;
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}
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}
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if ( flags & wxDateTime::Name_Abbr )
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{
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if ( name.CmpNoCase(wxDateTime::
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GetWeekDayName(wd, wxDateTime::Name_Abbr)) == 0 )
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{
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break;
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}
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}
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}
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return wd;
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}
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// scans all digits (but no more than len) and returns the resulting number
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static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
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{
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size_t n = 1;
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wxString s;
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while ( wxIsdigit(*p) )
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{
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s += *p++;
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if ( len && ++n > len )
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break;
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}
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return !!s && s.ToULong(number);
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}
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// scans all alphabetic characters and returns the resulting string
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static wxString GetAlphaToken(const wxChar*& p)
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{
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wxString s;
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while ( wxIsalpha(*p) )
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{
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s += *p++;
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}
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return s;
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}
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|
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// ============================================================================
|
|
// implementation of wxDateTime
|
|
// ============================================================================
|
|
|
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// ----------------------------------------------------------------------------
|
|
// struct Tm
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// ----------------------------------------------------------------------------
|
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|
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wxDateTime::Tm::Tm()
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{
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year = (wxDateTime_t)wxDateTime::Inv_Year;
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mon = wxDateTime::Inv_Month;
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mday = 0;
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hour = min = sec = msec = 0;
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wday = wxDateTime::Inv_WeekDay;
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}
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wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz)
|
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: m_tz(tz)
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{
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msec = 0;
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sec = tm.tm_sec;
|
|
min = tm.tm_min;
|
|
hour = tm.tm_hour;
|
|
mday = tm.tm_mday;
|
|
mon = (wxDateTime::Month)tm.tm_mon;
|
|
year = 1900 + tm.tm_year;
|
|
wday = tm.tm_wday;
|
|
yday = tm.tm_yday;
|
|
}
|
|
|
|
bool wxDateTime::Tm::IsValid() const
|
|
{
|
|
// we allow for the leap seconds, although we don't use them (yet)
|
|
return (year != wxDateTime::Inv_Year) && (mon != wxDateTime::Inv_Month) &&
|
|
(mday <= GetNumOfDaysInMonth(year, mon)) &&
|
|
(hour < 24) && (min < 60) && (sec < 62) && (msec < 1000);
|
|
}
|
|
|
|
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::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7;
|
|
}
|
|
|
|
void wxDateTime::Tm::AddMonths(int monDiff)
|
|
{
|
|
// normalize the months field
|
|
while ( monDiff < -mon )
|
|
{
|
|
year--;
|
|
|
|
monDiff += MONTHS_IN_YEAR;
|
|
}
|
|
|
|
while ( monDiff + mon >= MONTHS_IN_YEAR )
|
|
{
|
|
year++;
|
|
|
|
monDiff -= MONTHS_IN_YEAR;
|
|
}
|
|
|
|
mon = (wxDateTime::Month)(mon + monDiff);
|
|
|
|
wxASSERT_MSG( mon >= 0 && mon < MONTHS_IN_YEAR, _T("logic error") );
|
|
|
|
// NB: we don't check here that the resulting date is valid, this function
|
|
// is private and the caller must check it if needed
|
|
}
|
|
|
|
void wxDateTime::Tm::AddDays(int dayDiff)
|
|
{
|
|
// normalize the days field
|
|
while ( dayDiff + mday < 1 )
|
|
{
|
|
AddMonths(-1);
|
|
|
|
dayDiff += GetNumOfDaysInMonth(year, mon);
|
|
}
|
|
|
|
mday += dayDiff;
|
|
while ( mday > GetNumOfDaysInMonth(year, mon) )
|
|
{
|
|
mday -= GetNumOfDaysInMonth(year, mon);
|
|
|
|
AddMonths(1);
|
|
}
|
|
|
|
wxASSERT_MSG( mday > 0 && mday <= GetNumOfDaysInMonth(year, mon),
|
|
_T("logic error") );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// class TimeZone
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz)
|
|
{
|
|
switch ( tz )
|
|
{
|
|
case wxDateTime::Local:
|
|
// get the offset from C RTL: it returns the difference GMT-local
|
|
// while we want to have the offset _from_ GMT, hence the '-'
|
|
m_offset = -GetTimeZone();
|
|
break;
|
|
|
|
case wxDateTime::GMT_12:
|
|
case wxDateTime::GMT_11:
|
|
case wxDateTime::GMT_10:
|
|
case wxDateTime::GMT_9:
|
|
case wxDateTime::GMT_8:
|
|
case wxDateTime::GMT_7:
|
|
case wxDateTime::GMT_6:
|
|
case wxDateTime::GMT_5:
|
|
case wxDateTime::GMT_4:
|
|
case wxDateTime::GMT_3:
|
|
case wxDateTime::GMT_2:
|
|
case wxDateTime::GMT_1:
|
|
m_offset = -3600*(wxDateTime::GMT0 - tz);
|
|
break;
|
|
|
|
case wxDateTime::GMT0:
|
|
case wxDateTime::GMT1:
|
|
case wxDateTime::GMT2:
|
|
case wxDateTime::GMT3:
|
|
case wxDateTime::GMT4:
|
|
case wxDateTime::GMT5:
|
|
case wxDateTime::GMT6:
|
|
case wxDateTime::GMT7:
|
|
case wxDateTime::GMT8:
|
|
case wxDateTime::GMT9:
|
|
case wxDateTime::GMT10:
|
|
case wxDateTime::GMT11:
|
|
case wxDateTime::GMT12:
|
|
m_offset = 3600*(tz - wxDateTime::GMT0);
|
|
break;
|
|
|
|
case wxDateTime::A_CST:
|
|
// Central Standard Time in use in Australia = UTC + 9.5
|
|
m_offset = 60l*(9*60 + 30);
|
|
break;
|
|
|
|
default:
|
|
wxFAIL_MSG( _T("unknown time zone") );
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// static functions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/* static */
|
|
bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal)
|
|
{
|
|
if ( year == Inv_Year )
|
|
year = GetCurrentYear();
|
|
|
|
if ( cal == Gregorian )
|
|
{
|
|
// in Gregorian calendar leap years are those divisible by 4 except
|
|
// those divisible by 100 unless they're also divisible by 400
|
|
// (in some countries, like Russia and Greece, additional corrections
|
|
// exist, but they won't manifest themselves until 2700)
|
|
return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0));
|
|
}
|
|
else if ( cal == Julian )
|
|
{
|
|
// in Julian calendar the rule is simpler
|
|
return year % 4 == 0;
|
|
}
|
|
else
|
|
{
|
|
wxFAIL_MSG(_T("unknown calendar"));
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
int wxDateTime::GetCentury(int year)
|
|
{
|
|
return year > 0 ? year / 100 : year / 100 - 1;
|
|
}
|
|
|
|
/* static */
|
|
int wxDateTime::ConvertYearToBC(int year)
|
|
{
|
|
// year 0 is BC 1
|
|
return year > 0 ? year : year - 1;
|
|
}
|
|
|
|
/* static */
|
|
int wxDateTime::GetCurrentYear(wxDateTime::Calendar cal)
|
|
{
|
|
switch ( cal )
|
|
{
|
|
case Gregorian:
|
|
return Now().GetYear();
|
|
|
|
case Julian:
|
|
wxFAIL_MSG(_T("TODO"));
|
|
break;
|
|
|
|
default:
|
|
wxFAIL_MSG(_T("unsupported calendar"));
|
|
break;
|
|
}
|
|
|
|
return Inv_Year;
|
|
}
|
|
|
|
/* static */
|
|
wxDateTime::Month wxDateTime::GetCurrentMonth(wxDateTime::Calendar cal)
|
|
{
|
|
switch ( cal )
|
|
{
|
|
case Gregorian:
|
|
return Now().GetMonth();
|
|
|
|
case Julian:
|
|
wxFAIL_MSG(_T("TODO"));
|
|
break;
|
|
|
|
default:
|
|
wxFAIL_MSG(_T("unsupported calendar"));
|
|
break;
|
|
}
|
|
|
|
return Inv_Month;
|
|
}
|
|
|
|
/* static */
|
|
wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(int year, Calendar cal)
|
|
{
|
|
if ( year == Inv_Year )
|
|
{
|
|
// take the current year if none given
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
switch ( cal )
|
|
{
|
|
case Gregorian:
|
|
case Julian:
|
|
return IsLeapYear(year) ? 366 : 365;
|
|
|
|
default:
|
|
wxFAIL_MSG(_T("unsupported calendar"));
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* static */
|
|
wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month,
|
|
int year,
|
|
wxDateTime::Calendar cal)
|
|
{
|
|
wxCHECK_MSG( month < MONTHS_IN_YEAR, 0, _T("invalid month") );
|
|
|
|
if ( cal == Gregorian || cal == Julian )
|
|
{
|
|
if ( year == Inv_Year )
|
|
{
|
|
// take the current year if none given
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
return GetNumOfDaysInMonth(year, month);
|
|
}
|
|
else
|
|
{
|
|
wxFAIL_MSG(_T("unsupported calendar"));
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
wxString wxDateTime::GetMonthName(wxDateTime::Month month,
|
|
wxDateTime::NameFlags flags)
|
|
{
|
|
wxCHECK_MSG( month != Inv_Month, _T(""), _T("invalid month") );
|
|
|
|
// 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;
|
|
InitTm(tm);
|
|
tm.tm_mon = month;
|
|
|
|
return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm);
|
|
}
|
|
|
|
/* static */
|
|
wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
|
|
wxDateTime::NameFlags flags)
|
|
{
|
|
wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") );
|
|
|
|
// take some arbitrary Sunday
|
|
tm tm;
|
|
InitTm(tm);
|
|
tm.tm_mday = 28;
|
|
tm.tm_mon = Nov;
|
|
tm.tm_year = 99;
|
|
|
|
// and offset it by the number of days needed to get the correct wday
|
|
tm.tm_mday += wday;
|
|
|
|
// call mktime() to normalize it...
|
|
(void)mktime(&tm);
|
|
|
|
// ... and call strftime()
|
|
return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
|
|
}
|
|
|
|
/* static */
|
|
void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
|
|
{
|
|
tm tm;
|
|
InitTm(tm);
|
|
if ( am )
|
|
{
|
|
*am = CallStrftime(_T("%p"), &tm);
|
|
}
|
|
if ( pm )
|
|
{
|
|
tm.tm_hour = 13;
|
|
*pm = CallStrftime(_T("%p"), &tm);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Country stuff: date calculations depend on the country (DST, work days,
|
|
// ...), so we need to know which rules to follow.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/* static */
|
|
wxDateTime::Country wxDateTime::GetCountry()
|
|
{
|
|
// TODO use LOCALE_ICOUNTRY setting under Win32
|
|
|
|
if ( ms_country == Country_Unknown )
|
|
{
|
|
// try to guess from the time zone name
|
|
time_t t = time(NULL);
|
|
struct tm *tm = localtime(&t);
|
|
|
|
wxString tz = CallStrftime(_T("%Z"), tm);
|
|
if ( tz == _T("WET") || tz == _T("WEST") )
|
|
{
|
|
ms_country = UK;
|
|
}
|
|
else if ( tz == _T("CET") || tz == _T("CEST") )
|
|
{
|
|
ms_country = Country_EEC;
|
|
}
|
|
else if ( tz == _T("MSK") || tz == _T("MSD") )
|
|
{
|
|
ms_country = Russia;
|
|
}
|
|
else if ( tz == _T("AST") || tz == _T("ADT") ||
|
|
tz == _T("EST") || tz == _T("EDT") ||
|
|
tz == _T("CST") || tz == _T("CDT") ||
|
|
tz == _T("MST") || tz == _T("MDT") ||
|
|
tz == _T("PST") || tz == _T("PDT") )
|
|
{
|
|
ms_country = USA;
|
|
}
|
|
else
|
|
{
|
|
// well, choose a default one
|
|
ms_country = USA;
|
|
}
|
|
}
|
|
|
|
return ms_country;
|
|
}
|
|
|
|
/* static */
|
|
void wxDateTime::SetCountry(wxDateTime::Country country)
|
|
{
|
|
ms_country = country;
|
|
}
|
|
|
|
/* static */
|
|
bool wxDateTime::IsWestEuropeanCountry(Country country)
|
|
{
|
|
if ( country == Country_Default )
|
|
{
|
|
country = GetCountry();
|
|
}
|
|
|
|
return (Country_WesternEurope_Start <= country) &&
|
|
(country <= Country_WesternEurope_End);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// DST calculations: we use 3 different rules for the West European countries,
|
|
// USA and for the rest of the world. This is undoubtedly false for many
|
|
// countries, but I lack the necessary info (and the time to gather it),
|
|
// please add the other rules here!
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/* static */
|
|
bool wxDateTime::IsDSTApplicable(int year, Country country)
|
|
{
|
|
if ( year == Inv_Year )
|
|
{
|
|
// take the current year if none given
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
if ( country == Country_Default )
|
|
{
|
|
country = GetCountry();
|
|
}
|
|
|
|
switch ( country )
|
|
{
|
|
case USA:
|
|
case UK:
|
|
// DST was first observed in the US and UK during WWI, reused
|
|
// during WWII and used again since 1966
|
|
return year >= 1966 ||
|
|
(year >= 1942 && year <= 1945) ||
|
|
(year == 1918 || year == 1919);
|
|
|
|
default:
|
|
// assume that it started after WWII
|
|
return year > 1950;
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
wxDateTime wxDateTime::GetBeginDST(int year, Country country)
|
|
{
|
|
if ( year == Inv_Year )
|
|
{
|
|
// take the current year if none given
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
if ( country == Country_Default )
|
|
{
|
|
country = GetCountry();
|
|
}
|
|
|
|
if ( !IsDSTApplicable(year, country) )
|
|
{
|
|
return wxInvalidDateTime;
|
|
}
|
|
|
|
wxDateTime dt;
|
|
|
|
if ( IsWestEuropeanCountry(country) || (country == Russia) )
|
|
{
|
|
// DST begins at 1 a.m. GMT on the last Sunday of March
|
|
if ( !dt.SetToLastWeekDay(Sun, Mar, year) )
|
|
{
|
|
// weird...
|
|
wxFAIL_MSG( _T("no last Sunday in March?") );
|
|
}
|
|
|
|
dt += wxTimeSpan::Hours(1);
|
|
|
|
// disable DST tests because it could result in an infinite recursion!
|
|
dt.MakeGMT(TRUE);
|
|
}
|
|
else switch ( country )
|
|
{
|
|
case USA:
|
|
switch ( year )
|
|
{
|
|
case 1918:
|
|
case 1919:
|
|
// don't know for sure - assume it was in effect all year
|
|
|
|
case 1943:
|
|
case 1944:
|
|
case 1945:
|
|
dt.Set(1, Jan, year);
|
|
break;
|
|
|
|
case 1942:
|
|
// DST was installed Feb 2, 1942 by the Congress
|
|
dt.Set(2, Feb, year);
|
|
break;
|
|
|
|
// Oil embargo changed the DST period in the US
|
|
case 1974:
|
|
dt.Set(6, Jan, 1974);
|
|
break;
|
|
|
|
case 1975:
|
|
dt.Set(23, Feb, 1975);
|
|
break;
|
|
|
|
default:
|
|
// before 1986, DST begun on the last Sunday of April, but
|
|
// in 1986 Reagan changed it to begin at 2 a.m. of the
|
|
// first Sunday in April
|
|
if ( year < 1986 )
|
|
{
|
|
if ( !dt.SetToLastWeekDay(Sun, Apr, year) )
|
|
{
|
|
// weird...
|
|
wxFAIL_MSG( _T("no first Sunday in April?") );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( !dt.SetToWeekDay(Sun, 1, Apr, year) )
|
|
{
|
|
// weird...
|
|
wxFAIL_MSG( _T("no first Sunday in April?") );
|
|
}
|
|
}
|
|
|
|
dt += wxTimeSpan::Hours(2);
|
|
|
|
// TODO what about timezone??
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
// assume Mar 30 as the start of the DST for the rest of the world
|
|
// - totally bogus, of course
|
|
dt.Set(30, Mar, year);
|
|
}
|
|
|
|
return dt;
|
|
}
|
|
|
|
/* static */
|
|
wxDateTime wxDateTime::GetEndDST(int year, Country country)
|
|
{
|
|
if ( year == Inv_Year )
|
|
{
|
|
// take the current year if none given
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
if ( country == Country_Default )
|
|
{
|
|
country = GetCountry();
|
|
}
|
|
|
|
if ( !IsDSTApplicable(year, country) )
|
|
{
|
|
return wxInvalidDateTime;
|
|
}
|
|
|
|
wxDateTime dt;
|
|
|
|
if ( IsWestEuropeanCountry(country) || (country == Russia) )
|
|
{
|
|
// DST ends at 1 a.m. GMT on the last Sunday of October
|
|
if ( !dt.SetToLastWeekDay(Sun, Oct, year) )
|
|
{
|
|
// weirder and weirder...
|
|
wxFAIL_MSG( _T("no last Sunday in October?") );
|
|
}
|
|
|
|
dt += wxTimeSpan::Hours(1);
|
|
|
|
// disable DST tests because it could result in an infinite recursion!
|
|
dt.MakeGMT(TRUE);
|
|
}
|
|
else switch ( country )
|
|
{
|
|
case USA:
|
|
switch ( year )
|
|
{
|
|
case 1918:
|
|
case 1919:
|
|
// don't know for sure - assume it was in effect all year
|
|
|
|
case 1943:
|
|
case 1944:
|
|
dt.Set(31, Dec, year);
|
|
break;
|
|
|
|
case 1945:
|
|
// the time was reset after the end of the WWII
|
|
dt.Set(30, Sep, year);
|
|
break;
|
|
|
|
default:
|
|
// DST ends at 2 a.m. on the last Sunday of October
|
|
if ( !dt.SetToLastWeekDay(Sun, Oct, year) )
|
|
{
|
|
// weirder and weirder...
|
|
wxFAIL_MSG( _T("no last Sunday in October?") );
|
|
}
|
|
|
|
dt += wxTimeSpan::Hours(2);
|
|
|
|
// TODO what about timezone??
|
|
}
|
|
break;
|
|
|
|
default:
|
|
// assume October 26th as the end of the DST - totally bogus too
|
|
dt.Set(26, Oct, year);
|
|
}
|
|
|
|
return dt;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// constructors and assignment operators
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// return the current time with ms precision
|
|
/* static */ wxDateTime wxDateTime::UNow()
|
|
{
|
|
return wxDateTime(wxGetLocalTimeMillis());
|
|
}
|
|
|
|
// the values in the tm structure contain the local time
|
|
wxDateTime& wxDateTime::Set(const struct tm& tm)
|
|
{
|
|
struct tm tm2(tm);
|
|
time_t timet = mktime(&tm2);
|
|
|
|
if ( timet == (time_t)-1 )
|
|
{
|
|
// mktime() rather unintuitively fails for Jan 1, 1970 if the hour is
|
|
// 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);
|
|
}
|
|
}
|
|
|
|
wxFAIL_MSG( _T("mktime() failed") );
|
|
|
|
*this = wxInvalidDateTime;
|
|
|
|
return *this;
|
|
}
|
|
else
|
|
{
|
|
return Set(timet);
|
|
}
|
|
}
|
|
|
|
wxDateTime& wxDateTime::Set(wxDateTime_t hour,
|
|
wxDateTime_t minute,
|
|
wxDateTime_t second,
|
|
wxDateTime_t millisec)
|
|
{
|
|
// we allow seconds to be 61 to account for the leap seconds, even if we
|
|
// don't use them really
|
|
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();
|
|
|
|
wxDATETIME_CHECK( tm, _T("localtime() failed") );
|
|
|
|
// adjust the time
|
|
tm->tm_hour = hour;
|
|
tm->tm_min = minute;
|
|
tm->tm_sec = second;
|
|
|
|
(void)Set(*tm);
|
|
|
|
// and finally adjust milliseconds
|
|
return SetMillisecond(millisec);
|
|
}
|
|
|
|
wxDateTime& wxDateTime::Set(wxDateTime_t day,
|
|
Month month,
|
|
int year,
|
|
wxDateTime_t hour,
|
|
wxDateTime_t minute,
|
|
wxDateTime_t second,
|
|
wxDateTime_t millisec)
|
|
{
|
|
wxDATETIME_CHECK( hour < 24 &&
|
|
second < 62 &&
|
|
minute < 60 &&
|
|
millisec < 1000,
|
|
_T("Invalid time in wxDateTime::Set()") );
|
|
|
|
ReplaceDefaultYearMonthWithCurrent(&year, &month);
|
|
|
|
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;
|
|
static const int yearMaxInRange = 2037;
|
|
|
|
// test only the year instead of testing for the exact end of the Unix
|
|
// time_t range - it doesn't bring anything to do more precise checks
|
|
if ( year >= yearMinInRange && year <= yearMaxInRange )
|
|
{
|
|
// use the standard library version if the date is in range - this is
|
|
// probably more efficient than our code
|
|
struct tm tm;
|
|
tm.tm_year = year - 1900;
|
|
tm.tm_mon = month;
|
|
tm.tm_mday = day;
|
|
tm.tm_hour = hour;
|
|
tm.tm_min = minute;
|
|
tm.tm_sec = second;
|
|
tm.tm_isdst = -1; // mktime() will guess it
|
|
|
|
(void)Set(tm);
|
|
|
|
// and finally adjust milliseconds
|
|
return SetMillisecond(millisec);
|
|
}
|
|
else
|
|
{
|
|
// do time calculations ourselves: we want to calculate the number of
|
|
// milliseconds between the given date and the epoch
|
|
|
|
// get the JDN for the midnight of this day
|
|
m_time = GetTruncatedJDN(day, month, year);
|
|
m_time -= EPOCH_JDN;
|
|
m_time *= SECONDS_PER_DAY * TIME_T_FACTOR;
|
|
|
|
// JDN corresponds to GMT, we take localtime
|
|
Add(wxTimeSpan(hour, minute, second + GetTimeZone(), millisec));
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::Set(double jdn)
|
|
{
|
|
// so that m_time will be 0 for the midnight of Jan 1, 1970 which is jdn
|
|
// EPOCH_JDN + 0.5
|
|
jdn -= EPOCH_JDN + 0.5;
|
|
|
|
jdn *= MILLISECONDS_PER_DAY;
|
|
|
|
m_time.Assign(jdn);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::ResetTime()
|
|
{
|
|
Tm tm = GetTm();
|
|
|
|
if ( tm.hour || tm.min || tm.sec || tm.msec )
|
|
{
|
|
tm.msec =
|
|
tm.sec =
|
|
tm.min =
|
|
tm.hour = 0;
|
|
|
|
Set(tm);
|
|
}
|
|
|
|
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
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
time_t time = GetTicks();
|
|
if ( time != (time_t)-1 )
|
|
{
|
|
// use C RTL functions
|
|
tm *tm;
|
|
if ( tz.GetOffset() == -GetTimeZone() )
|
|
{
|
|
// we are working with local time
|
|
tm = localtime(&time);
|
|
|
|
// should never happen
|
|
wxCHECK_MSG( tm, Tm(), _T("localtime() failed") );
|
|
}
|
|
else
|
|
{
|
|
time += (time_t)tz.GetOffset();
|
|
#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
|
|
int time2 = (int) time;
|
|
if ( time2 >= 0 )
|
|
#else
|
|
if ( time >= 0 )
|
|
#endif
|
|
{
|
|
tm = gmtime(&time);
|
|
|
|
// should never happen
|
|
wxCHECK_MSG( tm, Tm(), _T("gmtime() failed") );
|
|
}
|
|
else
|
|
{
|
|
tm = (struct tm *)NULL;
|
|
}
|
|
}
|
|
|
|
if ( tm )
|
|
{
|
|
// adjust the milliseconds
|
|
Tm tm2(*tm, tz);
|
|
long timeOnly = (m_time % MILLISECONDS_PER_DAY).ToLong();
|
|
tm2.msec = (wxDateTime_t)(timeOnly % 1000);
|
|
return tm2;
|
|
}
|
|
//else: use generic code below
|
|
}
|
|
|
|
// remember the time and do the calculations with the date only - this
|
|
// eliminates rounding errors of the floating point arithmetics
|
|
|
|
wxLongLong timeMidnight = m_time + tz.GetOffset() * 1000;
|
|
|
|
long timeOnly = (timeMidnight % MILLISECONDS_PER_DAY).ToLong();
|
|
|
|
// we want to always have positive time and timeMidnight to be really
|
|
// the midnight before it
|
|
if ( timeOnly < 0 )
|
|
{
|
|
timeOnly = MILLISECONDS_PER_DAY + timeOnly;
|
|
}
|
|
|
|
timeMidnight -= timeOnly;
|
|
|
|
// calculate the Gregorian date from JDN for the midnight of our date:
|
|
// this will yield day, month (in 1..12 range) and year
|
|
|
|
// actually, this is the JDN for the noon of the previous day
|
|
long jdn = (timeMidnight / MILLISECONDS_PER_DAY).ToLong() + EPOCH_JDN;
|
|
|
|
// CREDIT: code below is by Scott E. Lee (but bugs are mine)
|
|
|
|
wxASSERT_MSG( jdn > -2, _T("JDN out of range") );
|
|
|
|
// calculate the century
|
|
long temp = (jdn + JDN_OFFSET) * 4 - 1;
|
|
long century = temp / DAYS_PER_400_YEARS;
|
|
|
|
// then the year and day of year (1 <= dayOfYear <= 366)
|
|
temp = ((temp % DAYS_PER_400_YEARS) / 4) * 4 + 3;
|
|
long year = (century * 100) + (temp / DAYS_PER_4_YEARS);
|
|
long dayOfYear = (temp % DAYS_PER_4_YEARS) / 4 + 1;
|
|
|
|
// and finally the month and day of the month
|
|
temp = dayOfYear * 5 - 3;
|
|
long month = temp / DAYS_PER_5_MONTHS;
|
|
long day = (temp % DAYS_PER_5_MONTHS) / 5 + 1;
|
|
|
|
// month is counted from March - convert to normal
|
|
if ( month < 10 )
|
|
{
|
|
month += 3;
|
|
}
|
|
else
|
|
{
|
|
year += 1;
|
|
month -= 9;
|
|
}
|
|
|
|
// year is offset by 4800
|
|
year -= 4800;
|
|
|
|
// 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") );
|
|
|
|
// construct Tm from these values
|
|
Tm tm;
|
|
tm.year = (int)year;
|
|
tm.mon = (Month)(month - 1); // algorithm yields 1 for January, not 0
|
|
tm.mday = (wxDateTime_t)day;
|
|
tm.msec = (wxDateTime_t)(timeOnly % 1000);
|
|
timeOnly -= tm.msec;
|
|
timeOnly /= 1000; // now we have time in seconds
|
|
|
|
tm.sec = (wxDateTime_t)(timeOnly % 60);
|
|
timeOnly -= tm.sec;
|
|
timeOnly /= 60; // now we have time in minutes
|
|
|
|
tm.min = (wxDateTime_t)(timeOnly % 60);
|
|
timeOnly -= tm.min;
|
|
|
|
tm.hour = (wxDateTime_t)(timeOnly / 60);
|
|
|
|
return tm;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetYear(int year)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.year = year;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetMonth(Month month)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.mon = month;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetDay(wxDateTime_t mday)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.mday = mday;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetHour(wxDateTime_t hour)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.hour = hour;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetMinute(wxDateTime_t min)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.min = min;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetSecond(wxDateTime_t sec)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
Tm tm(GetTm());
|
|
tm.sec = sec;
|
|
Set(tm);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetMillisecond(wxDateTime_t millisecond)
|
|
{
|
|
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
|
|
|
|
// we don't need to use GetTm() for this one
|
|
m_time -= m_time % 1000l;
|
|
m_time += millisecond;
|
|
|
|
return *this;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime arithmetics
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxDateTime& wxDateTime::Add(const wxDateSpan& diff)
|
|
{
|
|
Tm tm(GetTm());
|
|
|
|
tm.year += diff.GetYears();
|
|
tm.AddMonths(diff.GetMonths());
|
|
|
|
// check that the resulting date is valid
|
|
if ( tm.mday > GetNumOfDaysInMonth(tm.year, tm.mon) )
|
|
{
|
|
// We suppose that when adding one month to Jan 31 we want to get Feb
|
|
// 28 (or 29), i.e. adding a month to the last day of the month should
|
|
// give the last day of the next month which is quite logical.
|
|
//
|
|
// Unfortunately, there is no logic way to understand what should
|
|
// Jan 30 + 1 month be - Feb 28 too or Feb 27 (assuming non leap year)?
|
|
// We make it Feb 28 (last day too), but it is highly questionable.
|
|
tm.mday = GetNumOfDaysInMonth(tm.year, tm.mon);
|
|
}
|
|
|
|
tm.AddDays(diff.GetTotalDays());
|
|
|
|
Set(tm);
|
|
|
|
wxASSERT_MSG( IsSameTime(tm),
|
|
_T("Add(wxDateSpan) shouldn't modify time") );
|
|
|
|
return *this;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Weekday and monthday stuff
|
|
// ----------------------------------------------------------------------------
|
|
|
|
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);
|
|
SetToWeekDayInSameWeek(weekday, flags) += wxDateSpan::Weeks(numWeek - 1);
|
|
|
|
if ( GetYear() != year )
|
|
{
|
|
// oops... numWeek was too big
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetToLastMonthDay(Month month,
|
|
int year)
|
|
{
|
|
// take the current month/year if none specified
|
|
if ( year == Inv_Year )
|
|
year = GetYear();
|
|
if ( month == Inv_Month )
|
|
month = GetMonth();
|
|
|
|
return Set(GetNumOfDaysInMonth(year, month), month, year);
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags)
|
|
{
|
|
wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
|
|
|
|
int wdayThis = GetWeekDay();
|
|
if ( weekday == wdayThis )
|
|
{
|
|
// nothing to do
|
|
return *this;
|
|
}
|
|
|
|
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));
|
|
}
|
|
else // weekday > wdayThis
|
|
{
|
|
return Add(wxDateSpan::Days(weekday - wdayThis));
|
|
}
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday)
|
|
{
|
|
wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
|
|
|
|
int diff;
|
|
WeekDay wdayThis = GetWeekDay();
|
|
if ( weekday == wdayThis )
|
|
{
|
|
// nothing to do
|
|
return *this;
|
|
}
|
|
else if ( weekday < wdayThis )
|
|
{
|
|
// need to advance a week
|
|
diff = 7 - (wdayThis - weekday);
|
|
}
|
|
else // weekday > wdayThis
|
|
{
|
|
diff = weekday - wdayThis;
|
|
}
|
|
|
|
return Add(wxDateSpan::Days(diff));
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday)
|
|
{
|
|
wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") );
|
|
|
|
int diff;
|
|
WeekDay wdayThis = GetWeekDay();
|
|
if ( weekday == wdayThis )
|
|
{
|
|
// nothing to do
|
|
return *this;
|
|
}
|
|
else if ( weekday > wdayThis )
|
|
{
|
|
// need to go to previous week
|
|
diff = 7 - (weekday - wdayThis);
|
|
}
|
|
else // weekday < wdayThis
|
|
{
|
|
diff = wdayThis - weekday;
|
|
}
|
|
|
|
return Subtract(wxDateSpan::Days(diff));
|
|
}
|
|
|
|
bool wxDateTime::SetToWeekDay(WeekDay weekday,
|
|
int n,
|
|
Month month,
|
|
int year)
|
|
{
|
|
wxCHECK_MSG( weekday != Inv_WeekDay, FALSE, _T("invalid weekday") );
|
|
|
|
// 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
|
|
ReplaceDefaultYearMonthWithCurrent(&year, &month);
|
|
|
|
wxDateTime dt;
|
|
|
|
// TODO this probably could be optimised somehow...
|
|
|
|
if ( n > 0 )
|
|
{
|
|
// get the first day of the month
|
|
dt.Set(1, month, year);
|
|
|
|
// get its wday
|
|
WeekDay wdayFirst = dt.GetWeekDay();
|
|
|
|
// go to the first weekday of the month
|
|
int diff = weekday - wdayFirst;
|
|
if ( diff < 0 )
|
|
diff += 7;
|
|
|
|
// add advance n-1 weeks more
|
|
diff += 7*(n - 1);
|
|
|
|
dt += wxDateSpan::Days(diff);
|
|
}
|
|
else // count from the end of the month
|
|
{
|
|
// get the last day of the month
|
|
dt.SetToLastMonthDay(month, year);
|
|
|
|
// get its wday
|
|
WeekDay wdayLast = dt.GetWeekDay();
|
|
|
|
// go to the last weekday of the month
|
|
int diff = wdayLast - weekday;
|
|
if ( diff < 0 )
|
|
diff += 7;
|
|
|
|
// and rewind n-1 weeks from there
|
|
diff += 7*(-n - 1);
|
|
|
|
dt -= wxDateSpan::Days(diff);
|
|
}
|
|
|
|
// check that it is still in the same month
|
|
if ( dt.GetMonth() == month )
|
|
{
|
|
*this = dt;
|
|
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
// no such day in this month
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
|
|
{
|
|
Tm tm(GetTm(tz));
|
|
|
|
return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday;
|
|
}
|
|
|
|
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;
|
|
|
|
WeekDay wd = GetWeekDay(tz);
|
|
if ( flags == Sunday_First )
|
|
{
|
|
week = (nDayInYear - wd + 7) / 7;
|
|
}
|
|
else
|
|
{
|
|
// have to shift the week days values
|
|
week = (nDayInYear - (wd - 1 + 7) % 7 + 7) / 7;
|
|
}
|
|
|
|
// FIXME some more elegant way??
|
|
WeekDay wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay();
|
|
if ( wdYearStart == Wed || wdYearStart == Thu )
|
|
{
|
|
week++;
|
|
}
|
|
|
|
return week;
|
|
}
|
|
|
|
wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags,
|
|
const TimeZone& tz) const
|
|
{
|
|
Tm tm = GetTm(tz);
|
|
wxDateTime dtMonthStart = wxDateTime(1, tm.mon, tm.year);
|
|
int nWeek = GetWeekOfYear(flags) - dtMonthStart.GetWeekOfYear(flags) + 1;
|
|
if ( nWeek < 0 )
|
|
{
|
|
// this may happen for January when Jan, 1 is the last week of the
|
|
// previous year
|
|
nWeek += IsLeapYear(tm.year - 1) ? 53 : 52;
|
|
}
|
|
|
|
return (wxDateTime::wxDateTime_t)nWeek;
|
|
}
|
|
|
|
wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
|
|
{
|
|
int year = GetYear();
|
|
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]) )
|
|
{
|
|
Set(yday - gs_cumulatedDays[isLeap][mon], mon, year);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Julian day number conversion and related stuff
|
|
// ----------------------------------------------------------------------------
|
|
|
|
double wxDateTime::GetJulianDayNumber() const
|
|
{
|
|
// JDN are always expressed for the GMT dates
|
|
Tm tm(ToTimezone(GMT0).GetTm(GMT0));
|
|
|
|
double result = GetTruncatedJDN(tm.mday, tm.mon, tm.year);
|
|
|
|
// add the part GetTruncatedJDN() neglected
|
|
result += 0.5;
|
|
|
|
// and now add the time: 86400 sec = 1 JDN
|
|
return result + ((double)(60*(60*tm.hour + tm.min) + tm.sec)) / 86400;
|
|
}
|
|
|
|
double wxDateTime::GetRataDie() const
|
|
{
|
|
// March 1 of the year 0 is Rata Die day -306 and JDN 1721119.5
|
|
return GetJulianDayNumber() - 1721119.5 - 306;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// timezone and DST stuff
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int wxDateTime::IsDST(wxDateTime::Country country) const
|
|
{
|
|
wxCHECK_MSG( country == Country_Default, -1,
|
|
_T("country support not implemented") );
|
|
|
|
// use the C RTL for the dates in the standard range
|
|
time_t timet = GetTicks();
|
|
if ( timet != (time_t)-1 )
|
|
{
|
|
tm *tm = localtime(&timet);
|
|
|
|
wxCHECK_MSG( tm, -1, _T("localtime() failed") );
|
|
|
|
return tm->tm_isdst;
|
|
}
|
|
else
|
|
{
|
|
int year = GetYear();
|
|
|
|
if ( !IsDSTApplicable(year, country) )
|
|
{
|
|
// no DST time in this year in this country
|
|
return -1;
|
|
}
|
|
|
|
return IsBetween(GetBeginDST(year, country), GetEndDST(year, country));
|
|
}
|
|
}
|
|
|
|
wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
|
|
{
|
|
long secDiff = GetTimeZone() + tz.GetOffset();
|
|
|
|
// we need to know whether DST is or not in effect for this date unless
|
|
// the test disabled by the caller
|
|
if ( !noDST && (IsDST() == 1) )
|
|
{
|
|
// FIXME we assume that the DST is always shifted by 1 hour
|
|
secDiff -= 3600;
|
|
}
|
|
|
|
return Subtract(wxTimeSpan::Seconds(secDiff));
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime to/from text representations
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
|
|
{
|
|
wxCHECK_MSG( format, _T(""), _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
|
|
time_t time = GetTicks();
|
|
if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) )
|
|
{
|
|
// use strftime()
|
|
tm *tm;
|
|
if ( tz.GetOffset() == -GetTimeZone() )
|
|
{
|
|
// we are working with local time
|
|
tm = localtime(&time);
|
|
|
|
// should never happen
|
|
wxCHECK_MSG( tm, wxEmptyString, _T("localtime() failed") );
|
|
}
|
|
else
|
|
{
|
|
time += (int)tz.GetOffset();
|
|
|
|
#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning
|
|
int time2 = (int) time;
|
|
if ( time2 >= 0 )
|
|
#else
|
|
if ( time >= 0 )
|
|
#endif
|
|
{
|
|
tm = gmtime(&time);
|
|
|
|
// should never happen
|
|
wxCHECK_MSG( tm, wxEmptyString, _T("gmtime() failed") );
|
|
}
|
|
else
|
|
{
|
|
tm = (struct tm *)NULL;
|
|
}
|
|
}
|
|
|
|
if ( tm )
|
|
{
|
|
return CallStrftime(format, tm);
|
|
}
|
|
//else: use generic code below
|
|
}
|
|
|
|
// we only parse ANSI C format specifications here, no POSIX 2
|
|
// complications, no GNU extensions but we do add support for a "%l" format
|
|
// specifier allowing to get the number of milliseconds
|
|
Tm tm = GetTm(tz);
|
|
|
|
// used for calls to strftime() when we only deal with time
|
|
struct tm tmTimeOnly;
|
|
tmTimeOnly.tm_hour = tm.hour;
|
|
tmTimeOnly.tm_min = tm.min;
|
|
tmTimeOnly.tm_sec = tm.sec;
|
|
tmTimeOnly.tm_wday = 0;
|
|
tmTimeOnly.tm_yday = 0;
|
|
tmTimeOnly.tm_mday = 1; // any date will do
|
|
tmTimeOnly.tm_mon = 0;
|
|
tmTimeOnly.tm_year = 76;
|
|
tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves
|
|
|
|
wxString tmp, res, fmt;
|
|
for ( const wxChar *p = format; *p; p++ )
|
|
{
|
|
if ( *p != _T('%') )
|
|
{
|
|
// copy as is
|
|
res += *p;
|
|
|
|
continue;
|
|
}
|
|
|
|
// set the default format
|
|
switch ( *++p )
|
|
{
|
|
case _T('Y'): // year has 4 digits
|
|
fmt = _T("%04d");
|
|
break;
|
|
|
|
case _T('j'): // day of year has 3 digits
|
|
case _T('l'): // milliseconds have 3 digits
|
|
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
|
|
// field width preceding the format in which case it will
|
|
// override the default format anyhow
|
|
fmt = _T("%02d");
|
|
}
|
|
|
|
bool restart = TRUE;
|
|
while ( restart )
|
|
{
|
|
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
|
|
res += GetWeekDayName(tm.GetWeekDay(),
|
|
*p == _T('a') ? Name_Abbr : Name_Full);
|
|
break;
|
|
|
|
case _T('b'): // a month name
|
|
case _T('B'):
|
|
res += GetMonthName(tm.mon,
|
|
*p == _T('b') ? Name_Abbr : Name_Full);
|
|
break;
|
|
|
|
case _T('c'): // locale default date and time representation
|
|
case _T('x'): // locale default date representation
|
|
//
|
|
// the problem: there is no way to know what do these format
|
|
// specifications correspond to for the current locale.
|
|
//
|
|
// the solution: use a hack and still use strftime(): first
|
|
// find the YEAR which is a year in the strftime() range (1970
|
|
// - 2038) whose Jan 1 falls on the same week day as the Jan 1
|
|
// of the real year. Then make a copy of the format and
|
|
// replace all occurences of YEAR in it with some unique
|
|
// string not appearing anywhere else in it, then use
|
|
// strftime() to format the date in year YEAR and then replace
|
|
// YEAR back by the real year and the unique replacement
|
|
// string back with YEAR. Notice that "all occurences of YEAR"
|
|
// means all occurences of 4 digit as well as 2 digit form!
|
|
//
|
|
// the bugs: we assume that neither of %c nor %x contains any
|
|
// fields which may change between the YEAR and real year. For
|
|
// example, the week number (%U, %W) and the day number (%j)
|
|
// 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
|
|
// 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
|
|
// which is 0 mod 7 every 28 years) but this rule breaks
|
|
// down if there are years between X and Y which are
|
|
// divisible by 4 but not leap (i.e. divisible by 100 but
|
|
// not 400), hence the correction.
|
|
|
|
int yearReal = GetYear(tz);
|
|
int mod28 = yearReal % 28;
|
|
|
|
// be careful to not go too far - we risk to leave the
|
|
// supported range
|
|
int year;
|
|
if ( mod28 < 10 )
|
|
{
|
|
year = 1988 + mod28; // 1988 == 0 (mod 28)
|
|
}
|
|
else
|
|
{
|
|
year = 1970 + mod28 - 10; // 1970 == 10 (mod 28)
|
|
}
|
|
|
|
int nCentury = year / 100,
|
|
nCenturyReal = yearReal / 100;
|
|
|
|
// need to adjust for the years divisble by 400 which are
|
|
// not leap but are counted like leap ones if we just take
|
|
// the number of centuries in between for nLostWeekDays
|
|
int nLostWeekDays = (nCentury - nCenturyReal) -
|
|
(nCentury / 4 - nCenturyReal / 4);
|
|
|
|
// we have to gain back the "lost" weekdays: note that the
|
|
// effect of this loop is to not do anything to
|
|
// nLostWeekDays (which we won't use any more), but to
|
|
// (indirectly) set the year correctly
|
|
while ( (nLostWeekDays % 7) != 0 )
|
|
{
|
|
nLostWeekDays += year++ % 4 ? 1 : 2;
|
|
}
|
|
|
|
// 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);
|
|
|
|
// find two strings not occuring in format (this is surely
|
|
// not optimal way of doing it... improvements welcome!)
|
|
wxString fmt = format;
|
|
wxString replacement = (wxChar)-1;
|
|
while ( fmt.Find(replacement) != wxNOT_FOUND )
|
|
{
|
|
replacement << (wxChar)-1;
|
|
}
|
|
|
|
wxString replacement2 = (wxChar)-2;
|
|
while ( fmt.Find(replacement) != wxNOT_FOUND )
|
|
{
|
|
replacement << (wxChar)-2;
|
|
}
|
|
|
|
// replace all occurences of year with it
|
|
bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
|
|
if ( !wasReplaced )
|
|
wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
|
|
|
|
// use strftime() to format the same date but in supported
|
|
// year
|
|
//
|
|
// NB: we assume that strftime() doesn't check for the
|
|
// date validity and will happily format the date
|
|
// corresponding to Feb 29 of a non leap year (which
|
|
// may happen if yearReal was leap and year is not)
|
|
struct tm tmAdjusted;
|
|
InitTm(tmAdjusted);
|
|
tmAdjusted.tm_hour = tm.hour;
|
|
tmAdjusted.tm_min = tm.min;
|
|
tmAdjusted.tm_sec = tm.sec;
|
|
tmAdjusted.tm_wday = tm.GetWeekDay();
|
|
tmAdjusted.tm_yday = GetDayOfYear();
|
|
tmAdjusted.tm_mday = tm.mday;
|
|
tmAdjusted.tm_mon = tm.mon;
|
|
tmAdjusted.tm_year = year - 1900;
|
|
tmAdjusted.tm_isdst = 0; // no DST, already adjusted
|
|
wxString str = CallStrftime(*p == _T('c') ? _T("%c")
|
|
: _T("%x"),
|
|
&tmAdjusted);
|
|
|
|
// now replace the occurence of 1999 with the real year
|
|
wxString strYearReal, strYearReal2;
|
|
strYearReal.Printf(_T("%04d"), yearReal);
|
|
strYearReal2.Printf(_T("%02d"), yearReal % 100);
|
|
str.Replace(strYear, strYearReal);
|
|
str.Replace(strYear2, strYearReal2);
|
|
|
|
// and replace back all occurences of replacement string
|
|
if ( wasReplaced )
|
|
{
|
|
str.Replace(replacement2, strYear2);
|
|
str.Replace(replacement, strYear);
|
|
}
|
|
|
|
res += str;
|
|
}
|
|
break;
|
|
|
|
case _T('d'): // day of a month (01-31)
|
|
res += wxString::Format(fmt, tm.mday);
|
|
break;
|
|
|
|
case _T('H'): // hour in 24h format (00-23)
|
|
res += wxString::Format(fmt, tm.hour);
|
|
break;
|
|
|
|
case _T('I'): // hour in 12h format (01-12)
|
|
{
|
|
// 24h -> 12h, 0h -> 12h too
|
|
int hour12 = tm.hour > 12 ? tm.hour - 12
|
|
: tm.hour ? tm.hour : 12;
|
|
res += wxString::Format(fmt, hour12);
|
|
}
|
|
break;
|
|
|
|
case _T('j'): // day of the year
|
|
res += wxString::Format(fmt, GetDayOfYear(tz));
|
|
break;
|
|
|
|
case _T('l'): // milliseconds (NOT STANDARD)
|
|
res += wxString::Format(fmt, GetMillisecond(tz));
|
|
break;
|
|
|
|
case _T('m'): // month as a number (01-12)
|
|
res += wxString::Format(fmt, tm.mon + 1);
|
|
break;
|
|
|
|
case _T('M'): // minute as a decimal number (00-59)
|
|
res += wxString::Format(fmt, tm.min);
|
|
break;
|
|
|
|
case _T('p'): // AM or PM string
|
|
res += CallStrftime(_T("%p"), &tmTimeOnly);
|
|
break;
|
|
|
|
case _T('S'): // second as a decimal number (00-61)
|
|
res += wxString::Format(fmt, tm.sec);
|
|
break;
|
|
|
|
case _T('U'): // week number in the year (Sunday 1st week day)
|
|
res += wxString::Format(fmt, GetWeekOfYear(Sunday_First, tz));
|
|
break;
|
|
|
|
case _T('W'): // week number in the year (Monday 1st week day)
|
|
res += wxString::Format(fmt, GetWeekOfYear(Monday_First, tz));
|
|
break;
|
|
|
|
case _T('w'): // weekday as a number (0-6), Sunday = 0
|
|
res += wxString::Format(fmt, tm.GetWeekDay());
|
|
break;
|
|
|
|
// case _T('x'): -- handled with "%c"
|
|
|
|
case _T('X'): // locale default time representation
|
|
// just use strftime() to format the time for us
|
|
res += CallStrftime(_T("%X"), &tmTimeOnly);
|
|
break;
|
|
|
|
case _T('y'): // year without century (00-99)
|
|
res += wxString::Format(fmt, tm.year % 100);
|
|
break;
|
|
|
|
case _T('Y'): // year with century
|
|
res += wxString::Format(fmt, tm.year);
|
|
break;
|
|
|
|
case _T('Z'): // timezone name
|
|
res += CallStrftime(_T("%Z"), &tmTimeOnly);
|
|
break;
|
|
|
|
default:
|
|
// is it the format width?
|
|
fmt.Empty();
|
|
while ( *p == _T('-') || *p == _T('+') ||
|
|
*p == _T(' ') || wxIsdigit(*p) )
|
|
{
|
|
fmt += *p;
|
|
}
|
|
|
|
if ( !fmt.IsEmpty() )
|
|
{
|
|
// we've only got the flags and width so far in fmt
|
|
fmt.Prepend(_T('%'));
|
|
fmt.Append(_T('d'));
|
|
|
|
restart = TRUE;
|
|
|
|
break;
|
|
}
|
|
|
|
// no, it wasn't the width
|
|
wxFAIL_MSG(_T("unknown format specificator"));
|
|
|
|
// fall through and just copy it nevertheless
|
|
|
|
case _T('%'): // a percent sign
|
|
res += *p;
|
|
break;
|
|
|
|
case 0: // the end of string
|
|
wxFAIL_MSG(_T("missing format at the end of string"));
|
|
|
|
// just put the '%' which was the last char in format
|
|
res += _T('%');
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
// this function parses a string in (strict) RFC 822 format: see the section 5
|
|
// of the RFC for the detailed description, but briefly it's something of the
|
|
// form "Sat, 18 Dec 1999 00:48:30 +0100"
|
|
//
|
|
// this function is "strict" by design - it must reject anything except true
|
|
// RFC822 time specs.
|
|
//
|
|
// TODO a great candidate for using reg exps
|
|
const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date)
|
|
{
|
|
wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
|
|
|
|
const wxChar *p = date;
|
|
const wxChar *comma = wxStrchr(p, _T(','));
|
|
if ( comma )
|
|
{
|
|
// the part before comma is the weekday
|
|
|
|
// skip it for now - we don't use but might check that it really
|
|
// corresponds to the specfied date
|
|
p = comma + 1;
|
|
|
|
if ( *p != _T(' ') )
|
|
{
|
|
wxLogDebug(_T("no space after weekday in RFC822 time spec"));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
p++; // skip space
|
|
}
|
|
|
|
// the following 1 or 2 digits are the day number
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
wxLogDebug(_T("day number expected in RFC822 time spec, none found"));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
wxDateTime_t day = *p++ - _T('0');
|
|
if ( wxIsdigit(*p) )
|
|
{
|
|
day *= 10;
|
|
day += *p++ - _T('0');
|
|
}
|
|
|
|
if ( *p++ != _T(' ') )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// the following 3 letters specify the month
|
|
wxString monName(p, 3);
|
|
Month mon;
|
|
if ( monName == _T("Jan") )
|
|
mon = Jan;
|
|
else if ( monName == _T("Feb") )
|
|
mon = Feb;
|
|
else if ( monName == _T("Mar") )
|
|
mon = Mar;
|
|
else if ( monName == _T("Apr") )
|
|
mon = Apr;
|
|
else if ( monName == _T("May") )
|
|
mon = May;
|
|
else if ( monName == _T("Jun") )
|
|
mon = Jun;
|
|
else if ( monName == _T("Jul") )
|
|
mon = Jul;
|
|
else if ( monName == _T("Aug") )
|
|
mon = Aug;
|
|
else if ( monName == _T("Sep") )
|
|
mon = Sep;
|
|
else if ( monName == _T("Oct") )
|
|
mon = Oct;
|
|
else if ( monName == _T("Nov") )
|
|
mon = Nov;
|
|
else if ( monName == _T("Dec") )
|
|
mon = Dec;
|
|
else
|
|
{
|
|
wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str());
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
p += 3;
|
|
|
|
if ( *p++ != _T(' ') )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// next is the year
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
// no year?
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
int year = *p++ - _T('0');
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
// should have at least 2 digits in the year
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
year *= 10;
|
|
year += *p++ - _T('0');
|
|
|
|
// is it a 2 digit year (as per original RFC 822) or a 4 digit one?
|
|
if ( wxIsdigit(*p) )
|
|
{
|
|
year *= 10;
|
|
year += *p++ - _T('0');
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
// no 3 digit years please
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
year *= 10;
|
|
year += *p++ - _T('0');
|
|
}
|
|
|
|
if ( *p++ != _T(' ') )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// time is in the format hh:mm:ss and seconds are optional
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
wxDateTime_t hour = *p++ - _T('0');
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
hour *= 10;
|
|
hour += *p++ - _T('0');
|
|
|
|
if ( *p++ != _T(':') )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
wxDateTime_t min = *p++ - _T('0');
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
min *= 10;
|
|
min += *p++ - _T('0');
|
|
|
|
wxDateTime_t sec = 0;
|
|
if ( *p++ == _T(':') )
|
|
{
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
sec = *p++ - _T('0');
|
|
|
|
if ( !wxIsdigit(*p) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
sec *= 10;
|
|
sec += *p++ - _T('0');
|
|
}
|
|
|
|
if ( *p++ != _T(' ') )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// and now the interesting part: the timezone
|
|
int offset;
|
|
if ( *p == _T('-') || *p == _T('+') )
|
|
{
|
|
// the explicit offset given: it has the form of hhmm
|
|
bool plus = *p++ == _T('+');
|
|
|
|
if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// hours
|
|
offset = 60*(10*(*p - _T('0')) + (*(p + 1) - _T('0')));
|
|
|
|
p += 2;
|
|
|
|
if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// minutes
|
|
offset += 10*(*p - _T('0')) + (*(p + 1) - _T('0'));
|
|
|
|
if ( !plus )
|
|
{
|
|
offset = -offset;
|
|
}
|
|
|
|
p += 2;
|
|
}
|
|
else
|
|
{
|
|
// the symbolic timezone given: may be either military timezone or one
|
|
// of standard abbreviations
|
|
if ( !*(p + 1) )
|
|
{
|
|
// military: Z = UTC, J unused, A = -1, ..., Y = +12
|
|
static const int offsets[26] =
|
|
{
|
|
//A B C D E F G H I J K L M
|
|
-1, -2, -3, -4, -5, -6, -7, -8, -9, 0, -10, -11, -12,
|
|
//N O P R Q S T U V W Z Y Z
|
|
+1, +2, +3, +4, +5, +6, +7, +8, +9, +10, +11, +12, 0
|
|
};
|
|
|
|
if ( *p < _T('A') || *p > _T('Z') || *p == _T('J') )
|
|
{
|
|
wxLogDebug(_T("Invalid militaty timezone '%c'"), *p);
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
offset = offsets[*p++ - _T('A')];
|
|
}
|
|
else
|
|
{
|
|
// abbreviation
|
|
wxString tz = p;
|
|
if ( tz == _T("UT") || tz == _T("UTC") || tz == _T("GMT") )
|
|
offset = 0;
|
|
else if ( tz == _T("AST") )
|
|
offset = AST - GMT0;
|
|
else if ( tz == _T("ADT") )
|
|
offset = ADT - GMT0;
|
|
else if ( tz == _T("EST") )
|
|
offset = EST - GMT0;
|
|
else if ( tz == _T("EDT") )
|
|
offset = EDT - GMT0;
|
|
else if ( tz == _T("CST") )
|
|
offset = CST - GMT0;
|
|
else if ( tz == _T("CDT") )
|
|
offset = CDT - GMT0;
|
|
else if ( tz == _T("MST") )
|
|
offset = MST - GMT0;
|
|
else if ( tz == _T("MDT") )
|
|
offset = MDT - GMT0;
|
|
else if ( tz == _T("PST") )
|
|
offset = PST - GMT0;
|
|
else if ( tz == _T("PDT") )
|
|
offset = PDT - GMT0;
|
|
else
|
|
{
|
|
wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p);
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
p += tz.length();
|
|
}
|
|
|
|
// make it minutes
|
|
offset *= 60;
|
|
}
|
|
|
|
// the spec was correct
|
|
Set(day, mon, year, hour, min, sec);
|
|
MakeTimezone((wxDateTime_t)(60*offset));
|
|
|
|
return p;
|
|
}
|
|
|
|
const wxChar *wxDateTime::ParseFormat(const wxChar *date,
|
|
const wxChar *format,
|
|
const wxDateTime& dateDef)
|
|
{
|
|
wxCHECK_MSG( date && format, (wxChar *)NULL,
|
|
_T("NULL pointer in wxDateTime::ParseFormat()") );
|
|
|
|
wxString str;
|
|
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
|
|
|
|
// and the value of the items we have (init them to get rid of warnings)
|
|
wxDateTime_t sec = 0,
|
|
min = 0,
|
|
hour = 0;
|
|
WeekDay wday = Inv_WeekDay;
|
|
wxDateTime_t yday = 0,
|
|
mday = 0;
|
|
wxDateTime::Month mon = Inv_Month;
|
|
int year = 0;
|
|
|
|
const wxChar *input = date;
|
|
for ( const wxChar *fmt = format; *fmt; fmt++ )
|
|
{
|
|
if ( *fmt != _T('%') )
|
|
{
|
|
if ( wxIsspace(*fmt) )
|
|
{
|
|
// a white space in the format string matches 0 or more white
|
|
// spaces in the input
|
|
while ( wxIsspace(*input) )
|
|
{
|
|
input++;
|
|
}
|
|
}
|
|
else // !space
|
|
{
|
|
// any other character (not whitespace, not '%') must be
|
|
// matched by itself in the input
|
|
if ( *input++ != *fmt )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
|
|
// done with this format char
|
|
continue;
|
|
}
|
|
|
|
// start of a format specification
|
|
|
|
// parse the optional width
|
|
size_t width = 0;
|
|
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 )
|
|
{
|
|
case _T('a'): // a weekday name
|
|
case _T('A'):
|
|
{
|
|
int flag = *fmt == _T('a') ? Name_Abbr : Name_Full;
|
|
wday = GetWeekDayFromName(GetAlphaToken(input), flag);
|
|
if ( wday == Inv_WeekDay )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
haveWDay = TRUE;
|
|
break;
|
|
|
|
case _T('b'): // a month name
|
|
case _T('B'):
|
|
{
|
|
int flag = *fmt == _T('b') ? Name_Abbr : Name_Full;
|
|
mon = GetMonthFromName(GetAlphaToken(input), flag);
|
|
if ( mon == Inv_Month )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
haveMon = TRUE;
|
|
break;
|
|
|
|
case _T('c'): // locale default date and time representation
|
|
{
|
|
wxDateTime dt;
|
|
|
|
// this is the format which corresponds to ctime() output
|
|
// and strptime("%c") should parse it, so try it first
|
|
static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y");
|
|
|
|
const wxChar *result = dt.ParseFormat(input, fmtCtime);
|
|
if ( !result )
|
|
{
|
|
result = dt.ParseFormat(input, _T("%x %X"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
result = dt.ParseFormat(input, _T("%X %x"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// we've tried everything and still no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
Tm tm = dt.GetTm();
|
|
|
|
haveDay = haveMon = haveYear =
|
|
haveHour = haveMin = haveSec = TRUE;
|
|
|
|
hour = tm.hour;
|
|
min = tm.min;
|
|
sec = tm.sec;
|
|
|
|
year = tm.year;
|
|
mon = tm.mon;
|
|
mday = tm.mday;
|
|
|
|
input = result;
|
|
}
|
|
break;
|
|
|
|
case _T('d'): // day of a month (01-31)
|
|
if ( !GetNumericToken(width, input, &num) ||
|
|
(num > 31) || (num < 1) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
// we can't check whether the day range is correct yet, will
|
|
// do it later - assume ok for now
|
|
haveDay = TRUE;
|
|
mday = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('H'): // hour in 24h format (00-23)
|
|
if ( !GetNumericToken(width, input, &num) || (num > 23) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = TRUE;
|
|
hour = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('I'): // hour in 12h format (01-12)
|
|
if ( !GetNumericToken(width, input, &num) || !num || (num > 12) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = TRUE;
|
|
hourIsIn12hFormat = TRUE;
|
|
hour = (wxDateTime_t)(num % 12); // 12 should be 0
|
|
break;
|
|
|
|
case _T('j'): // day of the year
|
|
if ( !GetNumericToken(width, input, &num) || !num || (num > 366) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveYDay = TRUE;
|
|
yday = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('m'): // month as a number (01-12)
|
|
if ( !GetNumericToken(width, input, &num) || !num || (num > 12) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveMon = TRUE;
|
|
mon = (Month)(num - 1);
|
|
break;
|
|
|
|
case _T('M'): // minute as a decimal number (00-59)
|
|
if ( !GetNumericToken(width, input, &num) || (num > 59) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveMin = TRUE;
|
|
min = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('p'): // AM or PM string
|
|
{
|
|
wxString am, pm, token = GetAlphaToken(input);
|
|
|
|
GetAmPmStrings(&am, &pm);
|
|
if ( token.CmpNoCase(pm) == 0 )
|
|
{
|
|
isPM = TRUE;
|
|
}
|
|
else if ( token.CmpNoCase(am) != 0 )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case _T('r'): // time as %I:%M:%S %p
|
|
{
|
|
wxDateTime dt;
|
|
input = dt.ParseFormat(input, _T("%I:%M:%S %p"));
|
|
if ( !input )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = haveMin = haveSec = TRUE;
|
|
|
|
Tm tm = dt.GetTm();
|
|
hour = tm.hour;
|
|
min = tm.min;
|
|
sec = tm.sec;
|
|
}
|
|
break;
|
|
|
|
case _T('R'): // time as %H:%M
|
|
{
|
|
wxDateTime dt;
|
|
input = dt.ParseFormat(input, _T("%H:%M"));
|
|
if ( !input )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = haveMin = TRUE;
|
|
|
|
Tm tm = dt.GetTm();
|
|
hour = tm.hour;
|
|
min = tm.min;
|
|
}
|
|
|
|
case _T('S'): // second as a decimal number (00-61)
|
|
if ( !GetNumericToken(width, input, &num) || (num > 61) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveSec = TRUE;
|
|
sec = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('T'): // time as %H:%M:%S
|
|
{
|
|
wxDateTime dt;
|
|
input = dt.ParseFormat(input, _T("%H:%M:%S"));
|
|
if ( !input )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = haveMin = haveSec = TRUE;
|
|
|
|
Tm tm = dt.GetTm();
|
|
hour = tm.hour;
|
|
min = tm.min;
|
|
sec = tm.sec;
|
|
}
|
|
break;
|
|
|
|
case _T('w'): // weekday as a number (0-6), Sunday = 0
|
|
if ( !GetNumericToken(width, input, &num) || (wday > 6) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
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
|
|
// correct but the date is out of range, so we will fall back
|
|
// to our generic code anyhow
|
|
{
|
|
struct tm tm;
|
|
|
|
const wxChar *result = CallStrptime(input, "%x", &tm);
|
|
if ( result )
|
|
{
|
|
input = result;
|
|
|
|
haveDay = haveMon = haveYear = TRUE;
|
|
|
|
year = 1900 + tm.tm_year;
|
|
mon = (Month)tm.tm_mon;
|
|
mday = tm.tm_mday;
|
|
|
|
break;
|
|
}
|
|
}
|
|
#endif // HAVE_STRPTIME
|
|
|
|
// TODO query the LOCALE_IDATE setting under Win32
|
|
{
|
|
wxDateTime dt;
|
|
|
|
wxString fmtDate, fmtDateAlt;
|
|
if ( IsWestEuropeanCountry(GetCountry()) ||
|
|
GetCountry() == Russia )
|
|
{
|
|
fmtDate = _T("%d/%m/%y");
|
|
fmtDateAlt = _T("%m/%d/%y");
|
|
}
|
|
else // assume USA
|
|
{
|
|
fmtDate = _T("%m/%d/%y");
|
|
fmtDateAlt = _T("%d/%m/%y");
|
|
}
|
|
|
|
const wxChar *result = dt.ParseFormat(input, fmtDate);
|
|
|
|
if ( !result )
|
|
{
|
|
// ok, be nice and try another one
|
|
result = dt.ParseFormat(input, fmtDateAlt);
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// bad luck
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
Tm tm = dt.GetTm();
|
|
|
|
haveDay = haveMon = haveYear = TRUE;
|
|
|
|
year = tm.year;
|
|
mon = tm.mon;
|
|
mday = tm.mday;
|
|
|
|
input = result;
|
|
}
|
|
|
|
break;
|
|
|
|
case _T('X'): // locale default time representation
|
|
#ifdef HAVE_STRPTIME
|
|
{
|
|
// use strptime() to do it for us (FIXME !Unicode friendly)
|
|
struct tm tm;
|
|
input = CallStrptime(input, "%X", &tm);
|
|
if ( !input )
|
|
{
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = haveMin = haveSec = TRUE;
|
|
|
|
hour = tm.tm_hour;
|
|
min = tm.tm_min;
|
|
sec = tm.tm_sec;
|
|
}
|
|
#else // !HAVE_STRPTIME
|
|
// TODO under Win32 we can query the LOCALE_ITIME system
|
|
// setting which says whether the default time format is
|
|
// 24 or 12 hour
|
|
{
|
|
// try to parse what follows as "%H:%M:%S" and, if this
|
|
// fails, as "%I:%M:%S %p" - this should catch the most
|
|
// common cases
|
|
wxDateTime dt;
|
|
|
|
const wxChar *result = dt.ParseFormat(input, _T("%T"));
|
|
if ( !result )
|
|
{
|
|
result = dt.ParseFormat(input, _T("%r"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveHour = haveMin = haveSec = TRUE;
|
|
|
|
Tm tm = dt.GetTm();
|
|
hour = tm.hour;
|
|
min = tm.min;
|
|
sec = tm.sec;
|
|
|
|
input = result;
|
|
}
|
|
#endif // HAVE_STRPTIME/!HAVE_STRPTIME
|
|
break;
|
|
|
|
case _T('y'): // year without century (00-99)
|
|
if ( !GetNumericToken(width, input, &num) || (num > 99) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveYear = TRUE;
|
|
|
|
// TODO should have an option for roll over date instead of
|
|
// hard coding it here
|
|
year = (num > 30 ? 1900 : 2000) + (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('Y'): // year with century
|
|
if ( !GetNumericToken(width, input, &num) )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
haveYear = TRUE;
|
|
year = (wxDateTime_t)num;
|
|
break;
|
|
|
|
case _T('Z'): // timezone name
|
|
wxFAIL_MSG(_T("TODO"));
|
|
break;
|
|
|
|
case _T('%'): // a percent sign
|
|
if ( *input++ != _T('%') )
|
|
{
|
|
// no match
|
|
return (wxChar *)NULL;
|
|
}
|
|
break;
|
|
|
|
case 0: // the end of string
|
|
wxFAIL_MSG(_T("unexpected format end"));
|
|
|
|
// fall through
|
|
|
|
default: // not a known format spec
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
|
|
// format matched, try to construct a date from what we have now
|
|
Tm tmDef;
|
|
if ( dateDef.IsValid() )
|
|
{
|
|
// take this date as default
|
|
tmDef = dateDef.GetTm();
|
|
}
|
|
else if ( IsValid() )
|
|
{
|
|
// if this date is valid, don't change it
|
|
tmDef = GetTm();
|
|
}
|
|
else
|
|
{
|
|
// no default and this date is invalid - fall back to Today()
|
|
tmDef = Today().GetTm();
|
|
}
|
|
|
|
Tm tm = tmDef;
|
|
|
|
// set the date
|
|
if ( haveYear )
|
|
{
|
|
tm.year = year;
|
|
}
|
|
|
|
// TODO we don't check here that the values are consistent, if both year
|
|
// day and month/day were found, we just ignore the year day and we
|
|
// also always ignore the week day
|
|
if ( haveMon && haveDay )
|
|
{
|
|
if ( mday > GetNumOfDaysInMonth(tm.year, mon) )
|
|
{
|
|
wxLogDebug(_T("bad month day in wxDateTime::ParseFormat"));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
tm.mon = mon;
|
|
tm.mday = mday;
|
|
}
|
|
else if ( haveYDay )
|
|
{
|
|
if ( yday > GetNumberOfDays(tm.year) )
|
|
{
|
|
wxLogDebug(_T("bad year day in wxDateTime::ParseFormat"));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm();
|
|
|
|
tm.mon = tm2.mon;
|
|
tm.mday = tm2.mday;
|
|
}
|
|
|
|
// deal with AM/PM
|
|
if ( haveHour && hourIsIn12hFormat && isPM )
|
|
{
|
|
// translate to 24hour format
|
|
hour += 12;
|
|
}
|
|
//else: either already in 24h format or no translation needed
|
|
|
|
// set the time
|
|
if ( haveHour )
|
|
{
|
|
tm.hour = hour;
|
|
}
|
|
|
|
if ( haveMin )
|
|
{
|
|
tm.min = min;
|
|
}
|
|
|
|
if ( haveSec )
|
|
{
|
|
tm.sec = sec;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
const wxChar *wxDateTime::ParseDateTime(const wxChar *date)
|
|
{
|
|
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"));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
const wxChar *wxDateTime::ParseDate(const wxChar *date)
|
|
{
|
|
// this is a simplified version of ParseDateTime() which understands only
|
|
// "today" (for wxDate compatibility) and digits only otherwise (and not
|
|
// all esoteric constructions ParseDateTime() knows about)
|
|
|
|
wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
|
|
|
|
const wxChar *p = date;
|
|
while ( wxIsspace(*p) )
|
|
p++;
|
|
|
|
// some special cases
|
|
static struct
|
|
{
|
|
const wxChar *str;
|
|
int dayDiffFromToday;
|
|
} literalDates[] =
|
|
{
|
|
{ wxTRANSLATE("today"), 0 },
|
|
{ wxTRANSLATE("yesterday"), -1 },
|
|
{ wxTRANSLATE("tomorrow"), 1 },
|
|
};
|
|
|
|
for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ )
|
|
{
|
|
wxString date = wxGetTranslation(literalDates[n].str);
|
|
size_t len = date.length();
|
|
if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 0) )
|
|
{
|
|
// nothing can follow this, so stop here
|
|
p += len;
|
|
|
|
int dayDiffFromToday = literalDates[n].dayDiffFromToday;
|
|
*this = Today();
|
|
if ( dayDiffFromToday )
|
|
{
|
|
*this += wxDateSpan::Days(dayDiffFromToday);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
}
|
|
|
|
// We try to guess what we have here: for each new (numeric) token, we
|
|
// determine if it can be a month, day or a year. Of course, there is an
|
|
// ambiguity as some numbers may be days as well as months, so we also
|
|
// 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?
|
|
|
|
// and the value of the items we have (init them to get rid of warnings)
|
|
WeekDay wday = Inv_WeekDay;
|
|
wxDateTime_t day = 0;
|
|
wxDateTime::Month mon = Inv_Month;
|
|
int year = 0;
|
|
|
|
// tokenize the string
|
|
size_t nPosCur = 0;
|
|
static const wxChar *dateDelimiters = _T(".,/-\t\r\n ");
|
|
wxStringTokenizer tok(p, dateDelimiters);
|
|
while ( tok.HasMoreTokens() )
|
|
{
|
|
wxString token = tok.GetNextToken();
|
|
if ( !token )
|
|
continue;
|
|
|
|
// is it a number?
|
|
unsigned long val;
|
|
if ( token.ToULong(&val) )
|
|
{
|
|
// guess what this number is
|
|
|
|
bool isDay = FALSE,
|
|
isMonth = FALSE,
|
|
isYear = FALSE;
|
|
|
|
if ( !haveMon && val > 0 && val <= 12 )
|
|
{
|
|
// assume it is month
|
|
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 > (unsigned long)maxDays) ) // cast to shut up compiler warning in BCC
|
|
{
|
|
isYear = TRUE;
|
|
}
|
|
else
|
|
{
|
|
isDay = TRUE;
|
|
}
|
|
}
|
|
|
|
if ( isYear )
|
|
{
|
|
if ( haveYear )
|
|
break;
|
|
|
|
haveYear = TRUE;
|
|
|
|
year = (wxDateTime_t)val;
|
|
}
|
|
else if ( isDay )
|
|
{
|
|
if ( haveDay )
|
|
break;
|
|
|
|
haveDay = TRUE;
|
|
|
|
day = (wxDateTime_t)val;
|
|
}
|
|
else if ( isMonth )
|
|
{
|
|
haveMon = TRUE;
|
|
|
|
mon = (Month)(val - 1);
|
|
}
|
|
}
|
|
else // not a number
|
|
{
|
|
// be careful not to overwrite the current mon value
|
|
Month mon2 = GetMonthFromName(token, Name_Full | Name_Abbr);
|
|
if ( mon2 != Inv_Month )
|
|
{
|
|
// it's a month
|
|
if ( haveMon )
|
|
{
|
|
// 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;
|
|
}
|
|
else // not a valid month name
|
|
{
|
|
wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
|
|
if ( wday != Inv_WeekDay )
|
|
{
|
|
// a week day
|
|
if ( haveWDay )
|
|
{
|
|
break;
|
|
}
|
|
|
|
haveWDay = TRUE;
|
|
}
|
|
else // not a valid weekday name
|
|
{
|
|
// try the ordinals
|
|
static const wxChar *ordinals[] =
|
|
{
|
|
wxTRANSLATE("first"),
|
|
wxTRANSLATE("second"),
|
|
wxTRANSLATE("third"),
|
|
wxTRANSLATE("fourth"),
|
|
wxTRANSLATE("fifth"),
|
|
wxTRANSLATE("sixth"),
|
|
wxTRANSLATE("seventh"),
|
|
wxTRANSLATE("eighth"),
|
|
wxTRANSLATE("ninth"),
|
|
wxTRANSLATE("tenth"),
|
|
wxTRANSLATE("eleventh"),
|
|
wxTRANSLATE("twelfth"),
|
|
wxTRANSLATE("thirteenth"),
|
|
wxTRANSLATE("fourteenth"),
|
|
wxTRANSLATE("fifteenth"),
|
|
wxTRANSLATE("sixteenth"),
|
|
wxTRANSLATE("seventeenth"),
|
|
wxTRANSLATE("eighteenth"),
|
|
wxTRANSLATE("nineteenth"),
|
|
wxTRANSLATE("twentieth"),
|
|
// that's enough - otherwise we'd have problems with
|
|
// composite (or not) ordinals
|
|
};
|
|
|
|
size_t n;
|
|
for ( n = 0; n < WXSIZEOF(ordinals); n++ )
|
|
{
|
|
if ( token.CmpNoCase(ordinals[n]) == 0 )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( n == WXSIZEOF(ordinals) )
|
|
{
|
|
// stop here - something unknown
|
|
break;
|
|
}
|
|
|
|
// it's a day
|
|
if ( haveDay )
|
|
{
|
|
// don't try anything here (as in case of numeric day
|
|
// above) - the symbolic day spec should always
|
|
// precede the month/year
|
|
break;
|
|
}
|
|
|
|
haveDay = TRUE;
|
|
|
|
day = (wxDateTime_t)(n + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
nPosCur = tok.GetPosition();
|
|
}
|
|
|
|
// either no more tokens or the scan was stopped by something we couldn't
|
|
// parse - in any case, see if we can construct a date from what we have
|
|
if ( !haveDay && !haveWDay )
|
|
{
|
|
wxLogDebug(_T("ParseDate: no day, no weekday hence no date."));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
if ( haveWDay && (haveMon || haveYear || haveDay) &&
|
|
!(haveDay && haveMon && haveYear) )
|
|
{
|
|
// without adjectives (which we don't support here) the week day only
|
|
// makes sense completely separately or with the full date
|
|
// specification (what would "Wed 1999" mean?)
|
|
return (wxChar *)NULL;
|
|
}
|
|
|
|
if ( !haveWDay && haveYear && !(haveDay && haveMon) )
|
|
{
|
|
// may be we have month and day instead of day and year?
|
|
if ( haveDay && !haveMon )
|
|
{
|
|
if ( day <= 12 )
|
|
{
|
|
// exchange day and month
|
|
mon = (wxDateTime::Month)(day - 1);
|
|
|
|
// we're in the current year then
|
|
if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
|
|
{
|
|
day = year;
|
|
|
|
haveMon = TRUE;
|
|
haveYear = FALSE;
|
|
}
|
|
//else: no, can't exchange, leave haveMon == FALSE
|
|
}
|
|
}
|
|
|
|
if ( !haveMon )
|
|
{
|
|
// if we give the year, month and day must be given too
|
|
wxLogDebug(_T("ParseDate: day and month should be specified if year is."));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
|
|
if ( !haveMon )
|
|
{
|
|
mon = GetCurrentMonth();
|
|
}
|
|
|
|
if ( !haveYear )
|
|
{
|
|
year = GetCurrentYear();
|
|
}
|
|
|
|
if ( haveDay )
|
|
{
|
|
Set(day, mon, year);
|
|
|
|
if ( haveWDay )
|
|
{
|
|
// check that it is really the same
|
|
if ( GetWeekDay() != wday )
|
|
{
|
|
// inconsistency detected
|
|
wxLogDebug(_T("ParseDate: inconsistent day/weekday."));
|
|
|
|
return (wxChar *)NULL;
|
|
}
|
|
}
|
|
}
|
|
else // haveWDay
|
|
{
|
|
*this = Today();
|
|
|
|
SetToWeekDayInSameWeek(wday);
|
|
}
|
|
|
|
// return the pointer to the first unparsed char
|
|
p += nPosCur;
|
|
if ( nPosCur && wxStrchr(dateDelimiters, *(p - 1)) )
|
|
{
|
|
// if we couldn't parse the token after the delimiter, put back the
|
|
// delimiter as well
|
|
p--;
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
const wxChar *wxDateTime::ParseTime(const wxChar *time)
|
|
{
|
|
wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
|
|
|
|
// first try some extra things
|
|
static const struct
|
|
{
|
|
const wxChar *name;
|
|
wxDateTime_t hour;
|
|
} stdTimes[] =
|
|
{
|
|
{ wxTRANSLATE("noon"), 12 },
|
|
{ wxTRANSLATE("midnight"), 00 },
|
|
// anything else?
|
|
};
|
|
|
|
for ( size_t n = 0; n < WXSIZEOF(stdTimes); n++ )
|
|
{
|
|
wxString timeString = wxGetTranslation(stdTimes[n].name);
|
|
size_t len = timeString.length();
|
|
if ( timeString.CmpNoCase(wxString(time, len)) == 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 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?
|
|
result = ParseFormat(time, _T("%H:%M:%S"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// 12hour with AM/PM but without seconds?
|
|
result = ParseFormat(time, _T("%I:%M %p"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// without seconds?
|
|
result = ParseFormat(time, _T("%H:%M"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// just the hour and AM/PM?
|
|
result = ParseFormat(time, _T("%I %p"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// just the hour?
|
|
result = ParseFormat(time, _T("%H"));
|
|
}
|
|
|
|
if ( !result )
|
|
{
|
|
// 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
|
|
|
|
return result;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Workdays and holidays support
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const
|
|
{
|
|
return !wxDateTimeHolidayAuthority::IsHoliday(*this);
|
|
}
|
|
|
|
// ============================================================================
|
|
// 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
|
|
//
|
|
// Here are the ones which are supported (all of them are supported by strftime
|
|
// as well):
|
|
// %H hour in 24 hour format
|
|
// %M minute (00 - 59)
|
|
// %S second (00 - 59)
|
|
// %% percent sign
|
|
//
|
|
// Also, for MFC CTimeSpan compatibility, we support
|
|
// %D number of days
|
|
//
|
|
// And, to be better than MFC :-), we also have
|
|
// %E number of wEeks
|
|
// %l milliseconds (000 - 999)
|
|
wxString wxTimeSpan::Format(const wxChar *format) const
|
|
{
|
|
wxCHECK_MSG( format, _T(""), _T("NULL format in wxTimeSpan::Format") );
|
|
|
|
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('%') )
|
|
{
|
|
// 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 )
|
|
{
|
|
default:
|
|
wxFAIL_MSG( _T("invalid format character") );
|
|
// fall through
|
|
|
|
case _T('%'):
|
|
str += ch;
|
|
|
|
// skip the part below switch
|
|
continue;
|
|
|
|
case _T('D'):
|
|
n = GetDays();
|
|
if ( partBiggest < Part_Day )
|
|
{
|
|
n %= DAYS_PER_WEEK;
|
|
}
|
|
else
|
|
{
|
|
partBiggest = Part_Day;
|
|
}
|
|
break;
|
|
|
|
case _T('E'):
|
|
partBiggest = Part_Week;
|
|
n = GetWeeks();
|
|
break;
|
|
|
|
case _T('H'):
|
|
n = GetHours();
|
|
if ( partBiggest < Part_Hour )
|
|
{
|
|
n %= HOURS_PER_DAY;
|
|
}
|
|
else
|
|
{
|
|
partBiggest = Part_Hour;
|
|
}
|
|
|
|
fmtPrefix += _T("02");
|
|
break;
|
|
|
|
case _T('l'):
|
|
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'):
|
|
n = GetMinutes();
|
|
if ( partBiggest < Part_Min )
|
|
{
|
|
n %= MIN_PER_HOUR;
|
|
}
|
|
else
|
|
{
|
|
partBiggest = Part_Min;
|
|
}
|
|
|
|
fmtPrefix += _T("02");
|
|
break;
|
|
|
|
case _T('S'):
|
|
n = GetSeconds().ToLong();
|
|
if ( partBiggest < Part_Sec )
|
|
{
|
|
n %= SEC_PER_MIN;
|
|
}
|
|
else
|
|
{
|
|
partBiggest = Part_Sec;
|
|
}
|
|
|
|
fmtPrefix += _T("02");
|
|
break;
|
|
}
|
|
|
|
str += wxString::Format(fmtPrefix + _T("ld"), n);
|
|
}
|
|
else
|
|
{
|
|
// normal character, just copy
|
|
str += ch;
|
|
}
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
// ============================================================================
|
|
// wxDateTimeHolidayAuthority and related classes
|
|
// ============================================================================
|
|
|
|
#include "wx/arrimpl.cpp"
|
|
|
|
WX_DEFINE_OBJARRAY(wxDateTimeArray);
|
|
|
|
static int wxCMPFUNC_CONV
|
|
wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second)
|
|
{
|
|
wxDateTime dt1 = **first,
|
|
dt2 = **second;
|
|
|
|
return dt1 == dt2 ? 0 : dt1 < dt2 ? -1 : +1;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTimeHolidayAuthority
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities;
|
|
|
|
/* static */
|
|
bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt)
|
|
{
|
|
size_t count = ms_authorities.size();
|
|
for ( size_t n = 0; n < count; n++ )
|
|
{
|
|
if ( ms_authorities[n]->DoIsHoliday(dt) )
|
|
{
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* static */
|
|
size_t
|
|
wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart,
|
|
const wxDateTime& dtEnd,
|
|
wxDateTimeArray& holidays)
|
|
{
|
|
wxDateTimeArray hol;
|
|
|
|
holidays.Clear();
|
|
|
|
size_t count = ms_authorities.size();
|
|
for ( size_t nAuth = 0; nAuth < count; nAuth++ )
|
|
{
|
|
ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
|
|
|
|
WX_APPEND_ARRAY(holidays, hol);
|
|
}
|
|
|
|
holidays.Sort(wxDateTimeCompareFunc);
|
|
|
|
return holidays.size();
|
|
}
|
|
|
|
/* static */
|
|
void wxDateTimeHolidayAuthority::ClearAllAuthorities()
|
|
{
|
|
WX_CLEAR_ARRAY(ms_authorities);
|
|
}
|
|
|
|
/* static */
|
|
void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
|
|
{
|
|
ms_authorities.push_back(auth);
|
|
}
|
|
|
|
wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
|
|
{
|
|
// nothing to do here
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTimeWorkDays
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxDateTimeWorkDays::DoIsHoliday(const wxDateTime& dt) const
|
|
{
|
|
wxDateTime::WeekDay wd = dt.GetWeekDay();
|
|
|
|
return (wd == wxDateTime::Sun) || (wd == wxDateTime::Sat);
|
|
}
|
|
|
|
size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart,
|
|
const wxDateTime& dtEnd,
|
|
wxDateTimeArray& holidays) const
|
|
{
|
|
if ( dtStart > dtEnd )
|
|
{
|
|
wxFAIL_MSG( _T("invalid date range in GetHolidaysInRange") );
|
|
|
|
return 0u;
|
|
}
|
|
|
|
holidays.Empty();
|
|
|
|
// instead of checking all days, start with the first Sat after dtStart and
|
|
// end with the last Sun before dtEnd
|
|
wxDateTime dtSatFirst = dtStart.GetNextWeekDay(wxDateTime::Sat),
|
|
dtSatLast = dtEnd.GetPrevWeekDay(wxDateTime::Sat),
|
|
dtSunFirst = dtStart.GetNextWeekDay(wxDateTime::Sun),
|
|
dtSunLast = dtEnd.GetPrevWeekDay(wxDateTime::Sun),
|
|
dt;
|
|
|
|
for ( dt = dtSatFirst; dt <= dtSatLast; dt += wxDateSpan::Week() )
|
|
{
|
|
holidays.Add(dt);
|
|
}
|
|
|
|
for ( dt = dtSunFirst; dt <= dtSunLast; dt += wxDateSpan::Week() )
|
|
{
|
|
holidays.Add(dt);
|
|
}
|
|
|
|
return holidays.GetCount();
|
|
}
|
|
|
|
#endif // wxUSE_DATETIME
|