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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/*
17Provides an object that represents a Time, stored as the number of
18seconds 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
47d67540 30#if wxUSE_TIMEDATE
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31
32#include "wx/time.h"
33#include "wx/date.h"
34#include "wx/utils.h"
1a5a8367 35#include <wx/intl.h>
c801d85f 36
47d67540 37#if wxUSE_IOSTREAMH
c801d85f 38#include <iostream.h>
fbc535ff 39#include <iomanip.h>
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40#else
41#include <iostream>
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42#include <iomanip>
43# ifdef _MSC_VER
44 using namespace std;
45# endif
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46#endif
47
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48#include <string.h>
49
50#if !USE_SHARED_LIBRARY
51IMPLEMENT_DYNAMIC_CLASS(wxTime, wxObject)
52#endif
53
54
55extern bool wxGetLocalTime(long *timeZone, int *dstObserved);
56extern long wxGetCurrentTime(void);
57
58static long TIME_ZONE; /* seconds west of GMT */
59static int DST_OBSERVED; /* flags U.S. daylight saving time observed */
60
61static bool wxTimeInitialized = FALSE;
62
63wxTime::tFormat wxTime::Format = wxTime::wx12h;
64wxTime::tPrecision wxTime::Precision = wxTime::wxStdMinSec;
65
66static const unsigned long seconds_in_day = 24*60*60L;
67static const wxDate refDate(1,1,1901);
68// static const wxDate maxDate(49709L); /* ((2**32)-1)/seconds_in_day -1 */
69
70wxTime wxTime::GetLocalTime(const wxDate& date, hourTy h, minuteTy m, secondTy s)
71/*
72 Return a local wxTime for the specified Standard Time date, hour, minute,
73 and second.
74*/
75{
76 if (!wxTimeInitialized)
77 {
78 wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
79 wxTimeInitialized = TRUE;
80 }
81/*
82 if (!date.IsBetween(refDate,maxDate))
83 setError(NIHCL_DATERANGE,DEFAULT,
84 date.dayOfMonth(),date.nameOfMonth(),date.year());
85*/
86 // The following line causes an error in GCC 2.1
87// long daysBetween = date-refDate;
88 // ... but this seems to get round it.
89 wxDate tmp1(date);
90 wxDate tmp2(refDate);
91 long daysBetween = tmp1 - tmp2;
92
93 return wxTime(seconds_in_day*daysBetween + 60*60L*h + 60*m + s);
94}
95
96wxTime::wxTime()
97/*
98 Construct a wxTime for this instant.
99*/
100{
101 if (!wxTimeInitialized)
102 {
103 wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
104 wxTimeInitialized = TRUE;
105 }
106 sec = wxGetCurrentTime();
1f0299c1 107 sec += 2177452800UL; /* seconds from 1/1/01 to 1/1/70 */
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108}
109
110wxTime::wxTime(hourTy h, minuteTy m, secondTy s, bool dst)
111/*
112 Construct a wxTime for today at the specified (local) hour, minute, and
113 second.
114*/
115{
116 if (!wxTimeInitialized)
117 {
118 wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
119 wxTimeInitialized = TRUE;
120 }
121
122 sec = wxTime(wxDate(),h,m,s,dst).sec;
123}
124
125
126wxTime::wxTime(const wxDate& date, hourTy h, minuteTy m, secondTy s, bool dst)
127/*
128 Construct a wxTime for the specified (local) Date, hour, minute, and
129 second.
130*/
131{
132 if (!wxTimeInitialized)
133 {
134 wxGetLocalTime(&TIME_ZONE, &DST_OBSERVED);
135 wxTimeInitialized = TRUE;
136 }
137 sec = GetLocalTime(date,h,m,s).sec-3600;
138 if (IsDST())
139 {
140 sec += 3600;
141 if (IsDST() || dst) sec -= 3600;
142 }
143 else
144 {
145 sec += 3600;
146/*
147 if (IsDST()) setError(NIHCL_BADTIME,DEFAULT,
148 date.dayOfMonth(),date.nameOfMonth(),date.year(),
1a5a8367 149 h,m,s,(dst?_("DST"):""));
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150*/
151 }
152 sec += TIME_ZONE; // adjust to GMT
153}
154
155wxTime::operator wxDate() const
156/*
157 Convert a wxTime to a local wxDate
158*/
159{
160// return wxDate((int)(GetLocalTime().sec/seconds_in_day)); 4.2 cc bug
161 long daycount = (long)(GetLocalTime().sec/seconds_in_day);
162
163 wxDate date(1,1,1901);
164 date += daycount;
165 return date;
166}
167
168bool wxTime::IsBetween(const wxTime& a, const wxTime& b) const
169{
170 return *this >= a && *this <= b;
171}
172
173hourTy wxTime::GetHour() const
174/*
175 Return the hour of this wxTime in local time; i.e., adjust for
176 time zone and Daylight Savings Time.
177*/
178{
179 return GetLocalTime().GetHourGMT();
180}
181
182hourTy wxTime::GetHourGMT() const
183/*
184 Return the hour of this Time in GMT.
185*/
186{
187 return (hourTy)((sec % 86400) / 3600);
188}
189
190wxTime wxTime::GetBeginDST(unsigned year)
191/*
192 Return the local Standard Time at which Daylight Savings Time
193 begins in the specified year.
194*/
195{
196 // Previous Sunday
197 wxTime DSTtime(GetLocalTime(wxDate(3,31,year).Previous(1)+7,2));
198 if (year<=1986) {
199 // Previous Sunday
200 DSTtime = GetLocalTime(wxDate(4,30,year).Previous(1),2);
201 if (year==1974) DSTtime = GetLocalTime(wxDate(1,6,1974),2);
202 if (year==1975) DSTtime = GetLocalTime(wxDate(2,23,1975),2);
203 }
204 return DSTtime;
205}
206
207wxTime wxTime::GetEndDST(unsigned year)
208/*
209 Return the local Standard Time at which Daylight Savings Time
210 ends in the specified year.
211*/
212{
213 wxTime STDtime(GetLocalTime(wxDate(10,31,year).Previous(1),2-1));
214 return STDtime;
215}
216
217bool wxTime::IsDST() const
218/*
219 Return TRUE if this local Standard Time should be adjusted
220 for Daylight Savings Time.
221*/
222{
223 long daycount = (long)(sec/seconds_in_day);
224
225 // At this point, daycount is the number of days from 1/1/1901.
226 // Need to convert to julian date (which starts at 1/1/4713 B.C.)
227 wxDate date(1,1,1901);
228 date += daycount;
229
230 unsigned year = date.GetYear();
231 if (DST_OBSERVED)
232 {
233 if (*this >= GetBeginDST(year))
234 if (*this < GetEndDST(year)) return TRUE;
235 }
236 return FALSE;
237}
238
239wxTime wxTime::GetLocalTime() const
240/*
241 Adjusts this GM Time for local time zone and Daylight Savings Time.
242*/
243{
244 wxTime local_time(sec-TIME_ZONE);
245 if (local_time.IsDST()) local_time.sec += 3600;
246 return local_time;
247}
248
249minuteTy wxTime::GetMinute() const
250/*
251 Return the minute of this wxTime in local time; i.e., adjust
252 for time zone and Daylight Savings Time.
253*/
254{
255 return GetLocalTime().GetMinuteGMT();
256}
257
258minuteTy wxTime::GetMinuteGMT() const
259/*
260 Return the minute of this wxTime in GMT.
261*/
262{
263 return (minuteTy)(((sec % 86400) % 3600) / 60);
264}
265
266secondTy wxTime::GetSecond() const
267/*
268 Return the second of this wxTime.
269*/
270{
271 return (secondTy)(((sec % 86400) % 3600) % 60);
272}
273
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274secondTy wxTime::GetSecondGMT() const
275/*
276 Return the minute of this wxTime in GMT.
277*/
278{
279 return (secondTy)(((sec % 86400) % 3600) % 60);
280}
281
282int wxTime::GetDay() const
283{
284 wxDate da((wxDate) *this);
285 return da.GetDay();
286}
287
288int wxTime::GetDayOfWeek() const
289{
290 wxDate da((wxDate) *this);
291 return da.GetDayOfWeek();
292}
293
294int wxTime::GetMonth() const
295{
296 wxDate da((wxDate) *this);
297 return da.GetMonth();
298}
299
300int wxTime::GetYear() const
301{
302 wxDate da((wxDate) *this);
303 return da.GetYear();
304}
305
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306wxTime wxTime::Max(const wxTime& t) const
307{
308 if (t < *this) return *this;
309 return t;
310}
311
312wxTime wxTime::Min(const wxTime& t) const
313{
314 if (t > *this) return *this;
315 return t;
316}
317
318wxTime::operator char *(void)
319{
320 return FormatTime();
321}
322
323void wxTime::SetFormat(const wxTime::tFormat lFormat,
324 const wxTime::tPrecision lPrecision) {
325
326 wxTime::Format = lFormat;
327 wxTime::Precision = lPrecision;
328}
329
330char *wxTime::FormatTime() const {
331 static char timeBuf[30];
332 unsigned hh(GetHour());
333
334 switch (Format) {
335 case wx12h:
336 hh -= 12;
337 break;
338 case wx24h:
339 break;
340 }
341
342 switch (Precision) {
343 case wxStdMinSec:
344 sprintf(timeBuf,"%2d:%02d:%02d",hh,GetMinute(),GetSecond());
345 break;
346 case wxStdMin:
347 sprintf(timeBuf,"%2d:%02d",hh,GetMinute());
348 break;
349 }
350
351 if (Format == wx12h)
352 if (GetHour() <= 12)
1a5a8367 353 strcat(timeBuf,_("am"));
c801d85f 354 else
1a5a8367 355 strcat(timeBuf,_("pm"));
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356
357 return timeBuf;
358}
359
360/*
361int wxTime::compare(const Object& ob) const
362{
363 assertArgSpecies(ob,classDesc,"compare");
364 register clockTy t = castdown(ob).sec;
365 if (sec < t) return -1;
366 if (sec > t) return 1;
367 return 0;
368}
369
370void wxTime::deepenShallowCopy() {}
371
372unsigned wxTime::hash() const { return sec; }
373
374bool wxTime::isEqual(const Object& ob) const
375{
376 return ob.isSpecies(classDesc) && *this==castdown(ob);
377}
378
379const Class* wxTime::species() const { return &classDesc; }
380
381void wxTime::printOn(ostream& strm) const
382{
383 register unsigned hh = GetHour();
384 wxDate(*this).printOn(strm);
385 strm << ' ' << ((hh <= 12) ? hh : hh-12) << ':'
386 << setfill('0') << setw(2) << GetMinute() << ':'
387 << setfill('0') << setw(2) << GetSecond() << ' ';
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388 if (hh < 12) strm << _("am");
389 else strm << _("pm");
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390}
391
392wxTime::wxTime(OIOin& strm)
393 : BASE(strm)
394{
395 unsigned long usec;
396 strm >> sec >> usec;
397}
398
399void wxTime::storer(OIOout& strm) const
400{
401 BASE::storer(strm);
402 strm << sec << 0l;
403}
404
405
406wxTime::wxTime(OIOifd& fd)
407 : BASE(fd)
408{
409 unsigned long usec;
410 fd >> sec >> usec;
411}
412
413void wxTime::storer(OIOofd& fd) const
414{
415 BASE::storer(fd);
416 fd << sec << 0l;
417}
418*/
419
420#endif