src/common/time.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        time.cpp
// Purpose:     wxTime class, from NIHCL
// Author:      Julian Smart, after K. E. Gorlen
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "time.h"
#endif

/*
Provides an object that represents a Time, stored as the number of
seconds since January 1, 1901, GMT.
*/

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#include "wx/setup.h"

#if wxUSE_TIMEDATE

#include "wx/time.h"
#include "wx/date.h"
#include "wx/utils.h"
#include "wx/intl.h"

#include "wx/ioswrap.h"

#if wxUSE_IOSTREAMH
    #include <iomanip.h>
#else
    #include <iomanip>
#endif

#include <string.h>

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxTime, wxObject)
#endif


extern bool wxGetLocalTime(long *timeZone, int *dstObserved);
extern long wxGetCurrentTime(void);

static long TIME_ZONE;          /* seconds west of GMT */
static int DST_OBSERVED;        /* flags U.S. daylight saving time observed */

static bool wxTimeInitialized = FALSE;

wxTime::tFormat    wxTime::Format    = wxTime::wx12h;
wxTime::tPrecision  wxTime::Precision  = wxTime::wxStdMinSec;

static const unsigned long seconds_in_day = 24*60*60L;
static const wxDate refDate(1,1,1901);
// static const wxDate maxDate(49709L);      /* ((2**32)-1)/seconds_in_day -1 */

wxTime wxTime::GetLocalTime(const wxDate& date, hourTy h, minuteTy m, secondTy s)
/*
      Return a local wxTime for the specified Standard Time date, hour, minute,
      and second.
*/
{
  if (!wxTimeInitialized)
  {
   wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
   wxTimeInitialized = TRUE;
  }
/*
      if (!date.IsBetween(refDate,maxDate))
           setError(NIHCL_DATERANGE,DEFAULT,
                date.dayOfMonth(),date.nameOfMonth(),date.year());
*/
  // The following line causes an error in GCC 2.1
//   long daysBetween = date-refDate;
  // ... but this seems to get round it.
  wxDate tmp1(date);
  wxDate tmp2(refDate);
  long daysBetween = tmp1 - tmp2;

  return wxTime(seconds_in_day*daysBetween + 60*60L*h + 60*m + s);
}

wxTime::wxTime()
/*
      Construct a wxTime for this instant.
*/
{
  if (!wxTimeInitialized)
  {
   wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
   wxTimeInitialized = TRUE;
  }
  sec = wxGetCurrentTime();
#ifdef __SALFORDC__
  sec += (unsigned long) 2177452800;     /* seconds from 1/1/01 to 1/1/70 */
#else
  sec += 2177452800UL;     /* seconds from 1/1/01 to 1/1/70 */
#endif
}

wxTime::wxTime(hourTy h, minuteTy m, secondTy s, bool dst)
/*
      Construct a wxTime for today at the specified (local) hour, minute, and
      second.
*/
{
  if (!wxTimeInitialized)
  {
   wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
   wxTimeInitialized = TRUE;
  }

  sec = wxTime(wxDate(),h,m,s,dst).sec;
}


wxTime::wxTime(const wxDate& date, hourTy h, minuteTy m, secondTy s, bool dst)
/*
        Construct a wxTime for the specified (local) Date, hour, minute, and
        second.
*/
{
  if (!wxTimeInitialized)
  {
    wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
   wxTimeInitialized = TRUE;
  }
  sec = GetLocalTime(date,h,m,s).sec-3600;
  if (IsDST())
  {
    sec += 3600;
    if (IsDST() || dst) sec -= 3600;
  }
  else
  {
    sec += 3600;
/*
                if (IsDST()) setError(NIHCL_BADTIME,DEFAULT,
                date.dayOfMonth(),date.nameOfMonth(),date.year(),
                h,m,s,(dst?_("DST"):""));
*/
  }
  sec += TIME_ZONE;                               // adjust to GMT
}

#ifndef __SALFORDC__
wxTime::operator wxDate() const
/*
      Convert a wxTime to a local wxDate
*/
{
//      return wxDate((int)(GetLocalTime().sec/seconds_in_day));     4.2 cc bug
      long daycount = (long)(GetLocalTime().sec/seconds_in_day);

        wxDate date(1,1,1901);
        date += daycount;
        return date;
}
#endif

bool wxTime::IsBetween(const wxTime& a, const wxTime& b) const
{
        return *this >= a && *this <= b;
}

hourTy wxTime::GetHour() const
/*
      Return the hour of this wxTime in local time; i.e., adjust for
        time zone and Daylight Savings Time.
*/
{
      return GetLocalTime().GetHourGMT();
}

hourTy wxTime::GetHourGMT() const
/*
        Return the hour of this Time in GMT.
*/
{
      return (hourTy)((sec % 86400) / 3600);
}

wxTime wxTime::GetBeginDST(unsigned year)
/*
      Return the local Standard Time at which Daylight Savings Time
        begins in the specified year.
*/
{
        // Previous Sunday
        wxTime DSTtime(GetLocalTime(wxDate(3,31,year).Previous(1)+7,2));
        if (year<=1986) {
                // Previous Sunday
           DSTtime = GetLocalTime(wxDate(4,30,year).Previous(1),2);
           if (year==1974) DSTtime = GetLocalTime(wxDate(1,6,1974),2);
                if (year==1975) DSTtime = GetLocalTime(wxDate(2,23,1975),2);
        }
        return DSTtime;
}

wxTime wxTime::GetEndDST(unsigned year)
/*
        Return the local Standard Time at which Daylight Savings Time
        ends in the specified year.
*/
{
      wxTime STDtime(GetLocalTime(wxDate(10,31,year).Previous(1),2-1));
      return STDtime;
}

bool wxTime::IsDST() const
/*
        Return TRUE if this local Standard Time should be adjusted
        for Daylight Savings Time.
*/
{
        long daycount = (long)(sec/seconds_in_day);

        // At this point, daycount is the number of days from 1/1/1901.
      // Need to convert to julian date (which starts at 1/1/4713 B.C.)
      wxDate date(1,1,1901);
        date += daycount;

        unsigned year = date.GetYear();
      if (DST_OBSERVED)
        {
                if (*this >= GetBeginDST(year))
                        if (*this < GetEndDST(year)) return TRUE;
        }
        return FALSE;
}

wxTime wxTime::GetLocalTime() const
/*
        Adjusts this GM Time for local time zone and Daylight Savings Time.
*/
{
      wxTime local_time(sec-TIME_ZONE);
        if (local_time.IsDST()) local_time.sec += 3600;
        return local_time;
}

minuteTy wxTime::GetMinute() const
/*
        Return the minute of this wxTime in local time; i.e., adjust
      for time zone and Daylight Savings Time.
*/
{
        return GetLocalTime().GetMinuteGMT();
}

minuteTy wxTime::GetMinuteGMT() const
/*
        Return the minute of this wxTime in GMT.
*/
{
      return (minuteTy)(((sec % 86400) % 3600) / 60);
}

secondTy wxTime::GetSecond() const
/*
        Return the second of this wxTime.
*/
{
      return (secondTy)(((sec % 86400) % 3600) % 60);
}

secondTy wxTime::GetSecondGMT() const
/*
        Return the minute of this wxTime in GMT.
*/
{
        return (secondTy)(((sec % 86400) % 3600) % 60);
}

int wxTime::GetDay() const
{
    wxDate da((wxDate) *this);
    return da.GetDay();
}

int wxTime::GetDayOfWeek() const
{
    wxDate da((wxDate) *this);
    return da.GetDayOfWeek();
}

int wxTime::GetMonth() const
{
    wxDate da((wxDate) *this);
    return da.GetMonth();
}

int wxTime::GetYear() const
{
    wxDate da((wxDate) *this);
    return da.GetYear();
}

wxTime wxTime::Max(const wxTime& t) const
{
        if (t < *this) return *this;
        return t;
}

wxTime wxTime::Min(const wxTime& t) const
{
        if (t > *this) return *this;
      return t;
}

#ifndef __SALFORDC__
wxTime::operator char *(void)
{
  return FormatTime();
}
#endif

void wxTime::SetFormat(const wxTime::tFormat lFormat,
                const wxTime::tPrecision lPrecision) {

  wxTime::Format    = lFormat;
  wxTime::Precision  = lPrecision;
}

char *wxTime::FormatTime() const {
  static char  timeBuf[30];
  unsigned    hh(GetHour());

  switch (Format) {
  case wx12h:
    hh  -= 12;
    break;
  case wx24h:
    break;
  }

  switch (Precision) {
  case wxStdMinSec:
    sprintf(timeBuf,"%2d:%02d:%02d",hh,GetMinute(),GetSecond());
    break;
  case wxStdMin:
    sprintf(timeBuf,"%2d:%02d",hh,GetMinute());
    break;
  }

  if (Format == wx12h)
    if (GetHour() <= 12)
      strcat(timeBuf,_("am"));
    else
      strcat(timeBuf,_("pm"));

  return timeBuf;
}

/*
int wxTime::compare(const Object& ob) const
{
      assertArgSpecies(ob,classDesc,"compare");
        register clockTy t = castdown(ob).sec;
        if (sec < t) return -1;
        if (sec > t) return 1;
        return 0;
}

void wxTime::deepenShallowCopy()  {}

unsigned wxTime::hash() const     { return sec; }

bool wxTime::isEqual(const Object& ob) const
{
        return ob.isSpecies(classDesc) && *this==castdown(ob);
}

const Class* wxTime::species() const { return &classDesc; }

void wxTime::printOn(ostream& strm) const
{
        register unsigned hh = GetHour();
        wxDate(*this).printOn(strm);
        strm << ' ' << ((hh <= 12) ? hh : hh-12) << ':'
             << setfill('0') << setw(2) << GetMinute() << ':'
         << setfill('0') << setw(2) << GetSecond() << ' ';
        if (hh < 12) strm << _("am");
        else strm << _("pm");
}

wxTime::wxTime(OIOin& strm)
      : BASE(strm)
{
      unsigned long usec;
      strm >> sec >> usec;
}

void wxTime::storer(OIOout& strm) const
{
        BASE::storer(strm);
        strm << sec << 0l;
}


wxTime::wxTime(OIOifd& fd)
      : BASE(fd)
{
      unsigned long usec;
      fd >> sec >> usec;
}

void wxTime::storer(OIOofd& fd) const
{
      BASE::storer(fd);
      fd << sec << 0l;
}
*/

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: time.cpp
	3	// Purpose: wxTime class, from NIHCL
	4	// Author: Julian Smart, after K. E. Gorlen
	5	// Modified by:
	6	// Created: 04/01/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "time.h"
	14	#endif
	15
	16	/*
	17	Provides an object that represents a Time, stored as the number of
	18	seconds since January 1, 1901, GMT.
	19	*/
	20
	21	// For compilers that support precompilation, includes "wx.h".
	22	#include "wx/wxprec.h"
	23
	24	#ifdef __BORLANDC__
	25	#pragma hdrstop
	26	#endif
	27
	28	#include "wx/setup.h"
	29
	30	#if wxUSE_TIMEDATE
	31
	32	#include "wx/time.h"
	33	#include "wx/date.h"
	34	#include "wx/utils.h"
	35	#include "wx/intl.h"
	36
	37	#include "wx/ioswrap.h"
	38
	39	#if wxUSE_IOSTREAMH
	40	#include <iomanip.h>
	41	#else
	42	#include <iomanip>
	43	#endif
	44
	45	#include <string.h>
	46
	47	#if !USE_SHARED_LIBRARY
	48	IMPLEMENT_DYNAMIC_CLASS(wxTime, wxObject)
	49	#endif
	50
	51
	52	extern bool wxGetLocalTime(long timeZone, int dstObserved);
	53	extern long wxGetCurrentTime(void);
	54
	55	static long TIME_ZONE; /* seconds west of GMT */
	56	static int DST_OBSERVED; /* flags U.S. daylight saving time observed */
	57
	58	static bool wxTimeInitialized = FALSE;
	59
	60	wxTime::tFormat wxTime::Format = wxTime::wx12h;
	61	wxTime::tPrecision wxTime::Precision = wxTime::wxStdMinSec;
	62
	63	static const unsigned long seconds_in_day = 246060L;
	64	static const wxDate refDate(1,1,1901);
	65	// static const wxDate maxDate(49709L); /* ((2*32)-1)/seconds_in_day -1 /
	66
	67	wxTime wxTime::GetLocalTime(const wxDate& date, hourTy h, minuteTy m, secondTy s)
	68	/*
	69	Return a local wxTime for the specified Standard Time date, hour, minute,
	70	and second.
	71	*/
	72	{
	73	if (!wxTimeInitialized)
	74	{
	75	wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
	76	wxTimeInitialized = TRUE;
	77	}
	78	/*
	79	if (!date.IsBetween(refDate,maxDate))
	80	setError(NIHCL_DATERANGE,DEFAULT,
	81	date.dayOfMonth(),date.nameOfMonth(),date.year());
	82	*/
	83	// The following line causes an error in GCC 2.1
	84	// long daysBetween = date-refDate;
	85	// ... but this seems to get round it.
	86	wxDate tmp1(date);
	87	wxDate tmp2(refDate);
	88	long daysBetween = tmp1 - tmp2;
	89
	90	return wxTime(seconds_in_daydaysBetween + 6060Lh + 60m + s);
	91	}
	92
	93	wxTime::wxTime()
	94	/*
	95	Construct a wxTime for this instant.
	96	*/
	97	{
	98	if (!wxTimeInitialized)
	99	{
	100	wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
	101	wxTimeInitialized = TRUE;
	102	}
	103	sec = wxGetCurrentTime();
	104	#ifdef __SALFORDC__
	105	sec += (unsigned long) 2177452800; /* seconds from 1/1/01 to 1/1/70 */
	106	#else
	107	sec += 2177452800UL; /* seconds from 1/1/01 to 1/1/70 */
	108	#endif
	109	}
	110
	111	wxTime::wxTime(hourTy h, minuteTy m, secondTy s, bool dst)
	112	/*
	113	Construct a wxTime for today at the specified (local) hour, minute, and
	114	second.
	115	*/
	116	{
	117	if (!wxTimeInitialized)
	118	{
	119	wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
	120	wxTimeInitialized = TRUE;
	121	}
	122
	123	sec = wxTime(wxDate(),h,m,s,dst).sec;
	124	}
	125
	126
	127	wxTime::wxTime(const wxDate& date, hourTy h, minuteTy m, secondTy s, bool dst)
	128	/*
	129	Construct a wxTime for the specified (local) Date, hour, minute, and
	130	second.
	131	*/
	132	{
	133	if (!wxTimeInitialized)
	134	{
	135	wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
	136	wxTimeInitialized = TRUE;
	137	}
	138	sec = GetLocalTime(date,h,m,s).sec-3600;
	139	if (IsDST())
	140	{
	141	sec += 3600;
	142	if (IsDST() \|\| dst) sec -= 3600;
	143	}
	144	else
	145	{
	146	sec += 3600;
	147	/*
	148	if (IsDST()) setError(NIHCL_BADTIME,DEFAULT,
	149	date.dayOfMonth(),date.nameOfMonth(),date.year(),
	150	h,m,s,(dst?_("DST"):""));
	151	*/
	152	}
	153	sec += TIME_ZONE; // adjust to GMT
	154	}
	155
	156	#ifndef __SALFORDC__
	157	wxTime::operator wxDate() const
	158	/*
	159	Convert a wxTime to a local wxDate
	160	*/
	161	{
	162	// return wxDate((int)(GetLocalTime().sec/seconds_in_day)); 4.2 cc bug
	163	long daycount = (long)(GetLocalTime().sec/seconds_in_day);
	164
	165	wxDate date(1,1,1901);
	166	date += daycount;
	167	return date;
	168	}
	169	#endif
	170
	171	bool wxTime::IsBetween(const wxTime& a, const wxTime& b) const
	172	{
	173	return this >= a && this <= b;
	174	}
	175
	176	hourTy wxTime::GetHour() const
	177	/*
	178	Return the hour of this wxTime in local time; i.e., adjust for
	179	time zone and Daylight Savings Time.
	180	*/
	181	{
	182	return GetLocalTime().GetHourGMT();
	183	}
	184
	185	hourTy wxTime::GetHourGMT() const
	186	/*
	187	Return the hour of this Time in GMT.
	188	*/
	189	{
	190	return (hourTy)((sec % 86400) / 3600);
	191	}
	192
	193	wxTime wxTime::GetBeginDST(unsigned year)
	194	/*
	195	Return the local Standard Time at which Daylight Savings Time
	196	begins in the specified year.
	197	*/
	198	{
	199	// Previous Sunday
	200	wxTime DSTtime(GetLocalTime(wxDate(3,31,year).Previous(1)+7,2));
	201	if (year<=1986) {
	202	// Previous Sunday
	203	DSTtime = GetLocalTime(wxDate(4,30,year).Previous(1),2);
	204	if (year==1974) DSTtime = GetLocalTime(wxDate(1,6,1974),2);
	205	if (year==1975) DSTtime = GetLocalTime(wxDate(2,23,1975),2);
	206	}
	207	return DSTtime;
	208	}
	209
	210	wxTime wxTime::GetEndDST(unsigned year)
	211	/*
	212	Return the local Standard Time at which Daylight Savings Time
	213	ends in the specified year.
	214	*/
	215	{
	216	wxTime STDtime(GetLocalTime(wxDate(10,31,year).Previous(1),2-1));
	217	return STDtime;
	218	}
	219
	220	bool wxTime::IsDST() const
	221	/*
	222	Return TRUE if this local Standard Time should be adjusted
	223	for Daylight Savings Time.
	224	*/
	225	{
	226	long daycount = (long)(sec/seconds_in_day);
	227
	228	// At this point, daycount is the number of days from 1/1/1901.
	229	// Need to convert to julian date (which starts at 1/1/4713 B.C.)
	230	wxDate date(1,1,1901);
	231	date += daycount;
	232
	233	unsigned year = date.GetYear();
	234	if (DST_OBSERVED)
	235	{
	236	if (*this >= GetBeginDST(year))
	237	if (*this < GetEndDST(year)) return TRUE;
	238	}
	239	return FALSE;
	240	}
	241
	242	wxTime wxTime::GetLocalTime() const
	243	/*
	244	Adjusts this GM Time for local time zone and Daylight Savings Time.
	245	*/
	246	{
	247	wxTime local_time(sec-TIME_ZONE);
	248	if (local_time.IsDST()) local_time.sec += 3600;
	249	return local_time;
	250	}
	251
	252	minuteTy wxTime::GetMinute() const
	253	/*
	254	Return the minute of this wxTime in local time; i.e., adjust
	255	for time zone and Daylight Savings Time.
	256	*/
	257	{
	258	return GetLocalTime().GetMinuteGMT();
	259	}
	260
	261	minuteTy wxTime::GetMinuteGMT() const
	262	/*
	263	Return the minute of this wxTime in GMT.
	264	*/
	265	{
	266	return (minuteTy)(((sec % 86400) % 3600) / 60);
	267	}
	268
	269	secondTy wxTime::GetSecond() const
	270	/*
	271	Return the second of this wxTime.
	272	*/
	273	{
	274	return (secondTy)(((sec % 86400) % 3600) % 60);
	275	}
	276
	277	secondTy wxTime::GetSecondGMT() const
	278	/*
	279	Return the minute of this wxTime in GMT.
	280	*/
	281	{
	282	return (secondTy)(((sec % 86400) % 3600) % 60);
	283	}
	284
	285	int wxTime::GetDay() const
	286	{
	287	wxDate da((wxDate) *this);
	288	return da.GetDay();
	289	}
	290
	291	int wxTime::GetDayOfWeek() const
	292	{
	293	wxDate da((wxDate) *this);
	294	return da.GetDayOfWeek();
	295	}
	296
	297	int wxTime::GetMonth() const
	298	{
	299	wxDate da((wxDate) *this);
	300	return da.GetMonth();
	301	}
	302
	303	int wxTime::GetYear() const
	304	{
	305	wxDate da((wxDate) *this);
	306	return da.GetYear();
	307	}
	308
	309	wxTime wxTime::Max(const wxTime& t) const
	310	{
	311	if (t < this) return this;
	312	return t;
	313	}
	314
	315	wxTime wxTime::Min(const wxTime& t) const
	316	{
	317	if (t > this) return this;
	318	return t;
	319	}
	320
	321	#ifndef __SALFORDC__
	322	wxTime::operator char *(void)
	323	{
	324	return FormatTime();
	325	}
	326	#endif
	327
	328	void wxTime::SetFormat(const wxTime::tFormat lFormat,
	329	const wxTime::tPrecision lPrecision) {
	330
	331	wxTime::Format = lFormat;
	332	wxTime::Precision = lPrecision;
	333	}
	334
	335	char *wxTime::FormatTime() const {
	336	static char timeBuf[30];
	337	unsigned hh(GetHour());
	338
	339	switch (Format) {
	340	case wx12h:
	341	hh -= 12;
	342	break;
	343	case wx24h:
	344	break;
	345	}
	346
	347	switch (Precision) {
	348	case wxStdMinSec:
	349	sprintf(timeBuf,"%2d:%02d:%02d",hh,GetMinute(),GetSecond());
	350	break;
	351	case wxStdMin:
	352	sprintf(timeBuf,"%2d:%02d",hh,GetMinute());
	353	break;
	354	}
	355
	356	if (Format == wx12h)
	357	if (GetHour() <= 12)
	358	strcat(timeBuf,_("am"));
	359	else
	360	strcat(timeBuf,_("pm"));
	361
	362	return timeBuf;
	363	}
	364
	365	/*
	366	int wxTime::compare(const Object& ob) const
	367	{
	368	assertArgSpecies(ob,classDesc,"compare");
	369	register clockTy t = castdown(ob).sec;
	370	if (sec < t) return -1;
	371	if (sec > t) return 1;
	372	return 0;
	373	}
	374
	375	void wxTime::deepenShallowCopy() {}
	376
	377	unsigned wxTime::hash() const { return sec; }
	378
	379	bool wxTime::isEqual(const Object& ob) const
	380	{
	381	return ob.isSpecies(classDesc) && *this==castdown(ob);
	382	}
	383
	384	const Class* wxTime::species() const { return &classDesc; }
	385
	386	void wxTime::printOn(ostream& strm) const
	387	{
	388	register unsigned hh = GetHour();
	389	wxDate(*this).printOn(strm);
	390	strm << ' ' << ((hh <= 12) ? hh : hh-12) << ':'
	391	<< setfill('0') << setw(2) << GetMinute() << ':'
	392	<< setfill('0') << setw(2) << GetSecond() << ' ';
	393	if (hh < 12) strm << _("am");
	394	else strm << _("pm");
	395	}
	396
	397	wxTime::wxTime(OIOin& strm)
	398	: BASE(strm)
	399	{
	400	unsigned long usec;
	401	strm >> sec >> usec;
	402	}
	403
	404	void wxTime::storer(OIOout& strm) const
	405	{
	406	BASE::storer(strm);
	407	strm << sec << 0l;
	408	}
	409
	410
	411	wxTime::wxTime(OIOifd& fd)
	412	: BASE(fd)
	413	{
	414	unsigned long usec;
	415	fd >> sec >> usec;
	416	}
	417
	418	void wxTime::storer(OIOofd& fd) const
	419	{
	420	BASE::storer(fd);
	421	fd << sec << 0l;
	422	}
	423	*/
	424
	425	#endif