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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 | /* | |
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 | ||
47d67540 | 30 | #if wxUSE_TIMEDATE |
c801d85f KB |
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> |
c801d85f KB |
40 | #else |
41 | #include <iostream> | |
fbc535ff JS |
42 | #include <iomanip> |
43 | # ifdef _MSC_VER | |
44 | using namespace std; | |
45 | # endif | |
c801d85f KB |
46 | #endif |
47 | ||
c801d85f KB |
48 | #include <string.h> |
49 | ||
50 | #if !USE_SHARED_LIBRARY | |
51 | IMPLEMENT_DYNAMIC_CLASS(wxTime, wxObject) | |
52 | #endif | |
53 | ||
54 | ||
55 | extern bool wxGetLocalTime(long *timeZone, int *dstObserved); | |
56 | extern long wxGetCurrentTime(void); | |
57 | ||
58 | static long TIME_ZONE; /* seconds west of GMT */ | |
59 | static int DST_OBSERVED; /* flags U.S. daylight saving time observed */ | |
60 | ||
61 | static bool wxTimeInitialized = FALSE; | |
62 | ||
63 | wxTime::tFormat wxTime::Format = wxTime::wx12h; | |
64 | wxTime::tPrecision wxTime::Precision = wxTime::wxStdMinSec; | |
65 | ||
66 | static const unsigned long seconds_in_day = 24*60*60L; | |
67 | static const wxDate refDate(1,1,1901); | |
68 | // static const wxDate maxDate(49709L); /* ((2**32)-1)/seconds_in_day -1 */ | |
69 | ||
70 | wxTime 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 | ||
96 | wxTime::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 */ |
c801d85f KB |
108 | } |
109 | ||
110 | wxTime::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 | ||
126 | wxTime::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"):"")); |
c801d85f KB |
150 | */ |
151 | } | |
152 | sec += TIME_ZONE; // adjust to GMT | |
153 | } | |
154 | ||
155 | wxTime::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 | ||
168 | bool wxTime::IsBetween(const wxTime& a, const wxTime& b) const | |
169 | { | |
170 | return *this >= a && *this <= b; | |
171 | } | |
172 | ||
173 | hourTy 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 | ||
182 | hourTy wxTime::GetHourGMT() const | |
183 | /* | |
184 | Return the hour of this Time in GMT. | |
185 | */ | |
186 | { | |
187 | return (hourTy)((sec % 86400) / 3600); | |
188 | } | |
189 | ||
190 | wxTime 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 | ||
207 | wxTime 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 | ||
217 | bool 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 | ||
239 | wxTime 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 | ||
249 | minuteTy 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 | ||
258 | minuteTy wxTime::GetMinuteGMT() const | |
259 | /* | |
260 | Return the minute of this wxTime in GMT. | |
261 | */ | |
262 | { | |
263 | return (minuteTy)(((sec % 86400) % 3600) / 60); | |
264 | } | |
265 | ||
266 | secondTy wxTime::GetSecond() const | |
267 | /* | |
268 | Return the second of this wxTime. | |
269 | */ | |
270 | { | |
271 | return (secondTy)(((sec % 86400) % 3600) % 60); | |
272 | } | |
273 | ||
274 | wxTime wxTime::Max(const wxTime& t) const | |
275 | { | |
276 | if (t < *this) return *this; | |
277 | return t; | |
278 | } | |
279 | ||
280 | wxTime wxTime::Min(const wxTime& t) const | |
281 | { | |
282 | if (t > *this) return *this; | |
283 | return t; | |
284 | } | |
285 | ||
286 | wxTime::operator char *(void) | |
287 | { | |
288 | return FormatTime(); | |
289 | } | |
290 | ||
291 | void wxTime::SetFormat(const wxTime::tFormat lFormat, | |
292 | const wxTime::tPrecision lPrecision) { | |
293 | ||
294 | wxTime::Format = lFormat; | |
295 | wxTime::Precision = lPrecision; | |
296 | } | |
297 | ||
298 | char *wxTime::FormatTime() const { | |
299 | static char timeBuf[30]; | |
300 | unsigned hh(GetHour()); | |
301 | ||
302 | switch (Format) { | |
303 | case wx12h: | |
304 | hh -= 12; | |
305 | break; | |
306 | case wx24h: | |
307 | break; | |
308 | } | |
309 | ||
310 | switch (Precision) { | |
311 | case wxStdMinSec: | |
312 | sprintf(timeBuf,"%2d:%02d:%02d",hh,GetMinute(),GetSecond()); | |
313 | break; | |
314 | case wxStdMin: | |
315 | sprintf(timeBuf,"%2d:%02d",hh,GetMinute()); | |
316 | break; | |
317 | } | |
318 | ||
319 | if (Format == wx12h) | |
320 | if (GetHour() <= 12) | |
1a5a8367 | 321 | strcat(timeBuf,_("am")); |
c801d85f | 322 | else |
1a5a8367 | 323 | strcat(timeBuf,_("pm")); |
c801d85f KB |
324 | |
325 | return timeBuf; | |
326 | } | |
327 | ||
328 | /* | |
329 | int wxTime::compare(const Object& ob) const | |
330 | { | |
331 | assertArgSpecies(ob,classDesc,"compare"); | |
332 | register clockTy t = castdown(ob).sec; | |
333 | if (sec < t) return -1; | |
334 | if (sec > t) return 1; | |
335 | return 0; | |
336 | } | |
337 | ||
338 | void wxTime::deepenShallowCopy() {} | |
339 | ||
340 | unsigned wxTime::hash() const { return sec; } | |
341 | ||
342 | bool wxTime::isEqual(const Object& ob) const | |
343 | { | |
344 | return ob.isSpecies(classDesc) && *this==castdown(ob); | |
345 | } | |
346 | ||
347 | const Class* wxTime::species() const { return &classDesc; } | |
348 | ||
349 | void wxTime::printOn(ostream& strm) const | |
350 | { | |
351 | register unsigned hh = GetHour(); | |
352 | wxDate(*this).printOn(strm); | |
353 | strm << ' ' << ((hh <= 12) ? hh : hh-12) << ':' | |
354 | << setfill('0') << setw(2) << GetMinute() << ':' | |
355 | << setfill('0') << setw(2) << GetSecond() << ' '; | |
1a5a8367 DP |
356 | if (hh < 12) strm << _("am"); |
357 | else strm << _("pm"); | |
c801d85f KB |
358 | } |
359 | ||
360 | wxTime::wxTime(OIOin& strm) | |
361 | : BASE(strm) | |
362 | { | |
363 | unsigned long usec; | |
364 | strm >> sec >> usec; | |
365 | } | |
366 | ||
367 | void wxTime::storer(OIOout& strm) const | |
368 | { | |
369 | BASE::storer(strm); | |
370 | strm << sec << 0l; | |
371 | } | |
372 | ||
373 | ||
374 | wxTime::wxTime(OIOifd& fd) | |
375 | : BASE(fd) | |
376 | { | |
377 | unsigned long usec; | |
378 | fd >> sec >> usec; | |
379 | } | |
380 | ||
381 | void wxTime::storer(OIOofd& fd) const | |
382 | { | |
383 | BASE::storer(fd); | |
384 | fd << sec << 0l; | |
385 | } | |
386 | */ | |
387 | ||
388 | #endif |