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1ef54dcf | 1 | /////////////////////////////////////////////////////////////////////////////// |
96531a71 | 2 | // Name: src/common/datetime.cpp |
0979c962 VZ |
3 | // Purpose: implementation of time/date related classes |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 11.05.99 | |
7 | // RCS-ID: $Id$ | |
1ef54dcf VZ |
8 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
9 | // parts of code taken from sndcal library by Scott E. Lee: | |
10 | // | |
11 | // Copyright 1993-1995, Scott E. Lee, all rights reserved. | |
12 | // Permission granted to use, copy, modify, distribute and sell | |
13 | // so long as the above copyright and this permission statement | |
14 | // are retained in all copies. | |
15 | // | |
65571936 | 16 | // Licence: wxWindows licence |
1ef54dcf VZ |
17 | /////////////////////////////////////////////////////////////////////////////// |
18 | ||
19 | /* | |
20 | * Implementation notes: | |
21 | * | |
22 | * 1. the time is stored as a 64bit integer containing the signed number of | |
299fcbfe VZ |
23 | * milliseconds since Jan 1. 1970 (the Unix Epoch) - so it is always |
24 | * expressed in GMT. | |
1ef54dcf VZ |
25 | * |
26 | * 2. the range is thus something about 580 million years, but due to current | |
27 | * algorithms limitations, only dates from Nov 24, 4714BC are handled | |
28 | * | |
29 | * 3. standard ANSI C functions are used to do time calculations whenever | |
30 | * possible, i.e. when the date is in the range Jan 1, 1970 to 2038 | |
31 | * | |
32 | * 4. otherwise, the calculations are done by converting the date to/from JDN | |
33 | * first (the range limitation mentioned above comes from here: the | |
34 | * algorithm used by Scott E. Lee's code only works for positive JDNs, more | |
35 | * or less) | |
36 | * | |
299fcbfe VZ |
37 | * 5. the object constructed for the given DD-MM-YYYY HH:MM:SS corresponds to |
38 | * this moment in local time and may be converted to the object | |
39 | * corresponding to the same date/time in another time zone by using | |
40 | * ToTimezone() | |
41 | * | |
42 | * 6. the conversions to the current (or any other) timezone are done when the | |
43 | * internal time representation is converted to the broken-down one in | |
44 | * wxDateTime::Tm. | |
1ef54dcf | 45 | */ |
0979c962 VZ |
46 | |
47 | // ============================================================================ | |
48 | // declarations | |
49 | // ============================================================================ | |
50 | ||
51 | // ---------------------------------------------------------------------------- | |
52 | // headers | |
53 | // ---------------------------------------------------------------------------- | |
54 | ||
0979c962 VZ |
55 | // For compilers that support precompilation, includes "wx.h". |
56 | #include "wx/wxprec.h" | |
57 | ||
58 | #ifdef __BORLANDC__ | |
59 | #pragma hdrstop | |
60 | #endif | |
61 | ||
1e6feb95 VZ |
62 | #if !defined(wxUSE_DATETIME) || wxUSE_DATETIME |
63 | ||
0979c962 | 64 | #ifndef WX_PRECOMP |
57bd4c60 WS |
65 | #ifdef __WXMSW__ |
66 | #include "wx/msw/wrapwin.h" | |
67 | #endif | |
0979c962 | 68 | #include "wx/string.h" |
0979c962 | 69 | #include "wx/log.h" |
88a7a4e1 | 70 | #include "wx/intl.h" |
bb90a3e6 | 71 | #include "wx/stopwatch.h" // for wxGetLocalTimeMillis() |
02761f6c | 72 | #include "wx/module.h" |
0bf751e7 | 73 | #include "wx/crt.h" |
0979c962 VZ |
74 | #endif // WX_PRECOMP |
75 | ||
fcc3d7cb | 76 | #include "wx/thread.h" |
cd0b1709 | 77 | #include "wx/tokenzr.h" |
fcc3d7cb | 78 | |
ff0ea71c GT |
79 | #include <ctype.h> |
80 | ||
64f9c100 | 81 | #ifdef __WINDOWS__ |
64f9c100 | 82 | #include <winnls.h> |
74b99d0f WS |
83 | #ifndef __WXWINCE__ |
84 | #include <locale.h> | |
85 | #endif | |
64f9c100 VS |
86 | #endif |
87 | ||
0979c962 VZ |
88 | #include "wx/datetime.h" |
89 | ||
bd4a25bc JS |
90 | const long wxDateTime::TIME_T_FACTOR = 1000l; |
91 | ||
cb73e600 SC |
92 | #if wxUSE_EXTENDED_RTTI |
93 | ||
94 | template<> void wxStringReadValue(const wxString &s , wxDateTime &data ) | |
95 | { | |
96 | data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ; | |
97 | } | |
98 | ||
99 | template<> void wxStringWriteValue(wxString &s , const wxDateTime &data ) | |
100 | { | |
101 | s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ; | |
102 | } | |
103 | ||
8805dbab | 104 | wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringConverter<wxDateTime>) |
cb73e600 SC |
105 | |
106 | #endif | |
107 | ||
108 | // | |
f0f951fa VZ |
109 | // ---------------------------------------------------------------------------- |
110 | // conditional compilation | |
111 | // ---------------------------------------------------------------------------- | |
6de20863 | 112 | |
2423ef22 VZ |
113 | #if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \ |
114 | ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) | |
f0f951fa VZ |
115 | // glibc 2.0.7 strptime() is broken - the following snippet causes it to |
116 | // crash (instead of just failing): | |
117 | // | |
118 | // strncpy(buf, "Tue Dec 21 20:25:40 1999", 128); | |
119 | // strptime(buf, "%x", &tm); | |
120 | // | |
121 | // so don't use it | |
122 | #undef HAVE_STRPTIME | |
123 | #endif // broken strptime() | |
124 | ||
dcbd3762 DE |
125 | #if defined(HAVE_STRPTIME) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS |
126 | // configure detects strptime as linkable because it's in the OS X | |
127 | // System library but MSL headers don't declare it. | |
7347d453 DE |
128 | |
129 | // char *strptime(const char *, const char *, struct tm *); | |
130 | // However, we DON'T want to just provide it here because we would | |
131 | // crash and/or overwrite data when strptime from OS X tries | |
132 | // to fill in MW's struct tm which is two fields shorter (no TZ stuff) | |
133 | // So for now let's just say we don't have strptime | |
134 | #undef HAVE_STRPTIME | |
dcbd3762 DE |
135 | #endif |
136 | ||
31907d03 SC |
137 | #if defined(__MWERKS__) && wxUSE_UNICODE |
138 | #include <wtime.h> | |
139 | #endif | |
140 | ||
e09080ec VZ |
141 | // define a special symbol for VC8 instead of writing tests for 1400 repeatedly |
142 | #ifdef __VISUALC__ | |
143 | #if __VISUALC__ >= 1400 | |
144 | #define __VISUALC8__ | |
145 | #endif | |
146 | #endif | |
147 | ||
0779cc9a | 148 | #if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM) |
6a27c749 WS |
149 | #if defined(__WXPALMOS__) |
150 | #define WX_GMTOFF_IN_TM | |
151 | #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) | |
f0f951fa | 152 | #define WX_TIMEZONE _timezone |
8208e181 | 153 | #elif defined(__MWERKS__) |
f6bcfd97 | 154 | long wxmw_timezone = 28800; |
c4e1b7f2 | 155 | #define WX_TIMEZONE wxmw_timezone |
5283098e | 156 | #elif defined(__DJGPP__) || defined(__WINE__) |
713a0efc | 157 | #include <sys/timeb.h> |
c4e1b7f2 | 158 | #include <values.h> |
713a0efc VS |
159 | static long wxGetTimeZone() |
160 | { | |
c4e1b7f2 VS |
161 | static long timezone = MAXLONG; // invalid timezone |
162 | if (timezone == MAXLONG) | |
163 | { | |
164 | struct timeb tb; | |
165 | ftime(&tb); | |
166 | timezone = tb.timezone; | |
167 | } | |
168 | return timezone; | |
713a0efc VS |
169 | } |
170 | #define WX_TIMEZONE wxGetTimeZone() | |
0779cc9a GD |
171 | #elif defined(__DARWIN__) |
172 | #define WX_GMTOFF_IN_TM | |
e09080ec VZ |
173 | #elif defined(__WXWINCE__) && defined(__VISUALC8__) |
174 | #define WX_TIMEZONE _timezone | |
f0f951fa VZ |
175 | #else // unknown platform - try timezone |
176 | #define WX_TIMEZONE timezone | |
177 | #endif | |
0779cc9a | 178 | #endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM |
c25a510b | 179 | |
bb7afa49 VZ |
180 | // everyone has strftime except Win CE unless VC8 is used |
181 | #if !defined(__WXWINCE__) || defined(__VISUALC8__) | |
182 | #define HAVE_STRFTIME | |
183 | #endif | |
184 | ||
e09080ec VZ |
185 | // NB: VC8 safe time functions could/should be used for wxMSW as well probably |
186 | #if defined(__WXWINCE__) && defined(__VISUALC8__) | |
187 | ||
188 | struct tm *wxLocaltime_r(const time_t *t, struct tm* tm) | |
189 | { | |
190 | __time64_t t64 = *t; | |
191 | return _localtime64_s(tm, &t64) == 0 ? tm : NULL; | |
192 | } | |
193 | ||
194 | struct tm *wxGmtime_r(const time_t* t, struct tm* tm) | |
195 | { | |
196 | __time64_t t64 = *t; | |
197 | return _gmtime64_s(tm, &t64) == 0 ? tm : NULL; | |
198 | } | |
199 | ||
200 | #else // !wxWinCE with VC8 | |
201 | ||
5b52a684 | 202 | #if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__) |
cf44a61c SN |
203 | static wxMutex timeLock; |
204 | #endif | |
205 | ||
206 | #ifndef HAVE_LOCALTIME_R | |
207 | struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp) | |
208 | { | |
209 | #if wxUSE_THREADS && !defined(__WINDOWS__) | |
210 | // No need to waste time with a mutex on windows since it's using | |
211 | // thread local storage for localtime anyway. | |
6f721331 | 212 | wxMutexLocker locker(timeLock); |
cf44a61c | 213 | #endif |
55809d13 VZ |
214 | |
215 | // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438 | |
216 | #ifdef __BORLANDC__ | |
217 | if ( !*ticks ) | |
218 | return NULL; | |
219 | #endif | |
220 | ||
221 | const tm * const t = localtime(ticks); | |
222 | if ( !t ) | |
223 | return NULL; | |
224 | ||
225 | memcpy(temp, t, sizeof(struct tm)); | |
cf44a61c SN |
226 | return temp; |
227 | } | |
e09080ec | 228 | #endif // !HAVE_LOCALTIME_R |
cf44a61c SN |
229 | |
230 | #ifndef HAVE_GMTIME_R | |
231 | struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) | |
232 | { | |
233 | #if wxUSE_THREADS && !defined(__WINDOWS__) | |
234 | // No need to waste time with a mutex on windows since it's | |
235 | // using thread local storage for gmtime anyway. | |
6f721331 | 236 | wxMutexLocker locker(timeLock); |
cf44a61c | 237 | #endif |
55809d13 VZ |
238 | |
239 | #ifdef __BORLANDC__ | |
240 | if ( !*ticks ) | |
241 | return NULL; | |
242 | #endif | |
243 | ||
244 | const tm * const t = gmtime(ticks); | |
245 | if ( !t ) | |
246 | return NULL; | |
247 | ||
cf44a61c SN |
248 | memcpy(temp, gmtime(ticks), sizeof(struct tm)); |
249 | return temp; | |
250 | } | |
e09080ec VZ |
251 | #endif // !HAVE_GMTIME_R |
252 | ||
253 | #endif // wxWinCE with VC8/other platforms | |
cf44a61c | 254 | |
384223b3 VZ |
255 | // ---------------------------------------------------------------------------- |
256 | // macros | |
257 | // ---------------------------------------------------------------------------- | |
258 | ||
259 | // debugging helper: just a convenient replacement of wxCHECK() | |
637b7e4f VZ |
260 | #define wxDATETIME_CHECK(expr, msg) \ |
261 | wxCHECK2_MSG(expr, *this = wxInvalidDateTime; return *this, msg) | |
384223b3 | 262 | |
4f6aed9c VZ |
263 | // ---------------------------------------------------------------------------- |
264 | // private classes | |
265 | // ---------------------------------------------------------------------------- | |
266 | ||
267 | class wxDateTimeHolidaysModule : public wxModule | |
268 | { | |
269 | public: | |
270 | virtual bool OnInit() | |
271 | { | |
272 | wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays); | |
273 | ||
68379eaf | 274 | return true; |
4f6aed9c VZ |
275 | } |
276 | ||
277 | virtual void OnExit() | |
278 | { | |
279 | wxDateTimeHolidayAuthority::ClearAllAuthorities(); | |
df5168c4 | 280 | wxDateTimeHolidayAuthority::ms_authorities.clear(); |
4f6aed9c VZ |
281 | } |
282 | ||
283 | private: | |
284 | DECLARE_DYNAMIC_CLASS(wxDateTimeHolidaysModule) | |
285 | }; | |
286 | ||
287 | IMPLEMENT_DYNAMIC_CLASS(wxDateTimeHolidaysModule, wxModule) | |
288 | ||
b76b015e VZ |
289 | // ---------------------------------------------------------------------------- |
290 | // constants | |
291 | // ---------------------------------------------------------------------------- | |
292 | ||
e6ec579c | 293 | // some trivial ones |
fcc3d7cb VZ |
294 | static const int MONTHS_IN_YEAR = 12; |
295 | ||
df05cdc5 VZ |
296 | static const int SEC_PER_MIN = 60; |
297 | ||
298 | static const int MIN_PER_HOUR = 60; | |
299 | ||
300 | static const int HOURS_PER_DAY = 24; | |
fcc3d7cb | 301 | |
e6ec579c VZ |
302 | static const long SECONDS_PER_DAY = 86400l; |
303 | ||
df05cdc5 VZ |
304 | static const int DAYS_PER_WEEK = 7; |
305 | ||
e6ec579c VZ |
306 | static const long MILLISECONDS_PER_DAY = 86400000l; |
307 | ||
308 | // this is the integral part of JDN of the midnight of Jan 1, 1970 | |
309 | // (i.e. JDN(Jan 1, 1970) = 2440587.5) | |
cd0b1709 | 310 | static const long EPOCH_JDN = 2440587l; |
b76b015e | 311 | |
9ffaedfc VZ |
312 | // used only in asserts |
313 | #ifdef __WXDEBUG__ | |
1ef54dcf VZ |
314 | // the date of JDN -0.5 (as we don't work with fractional parts, this is the |
315 | // reference date for us) is Nov 24, 4714BC | |
316 | static const int JDN_0_YEAR = -4713; | |
317 | static const int JDN_0_MONTH = wxDateTime::Nov; | |
318 | static const int JDN_0_DAY = 24; | |
9ffaedfc | 319 | #endif // __WXDEBUG__ |
1ef54dcf VZ |
320 | |
321 | // the constants used for JDN calculations | |
cd0b1709 VZ |
322 | static const long JDN_OFFSET = 32046l; |
323 | static const long DAYS_PER_5_MONTHS = 153l; | |
324 | static const long DAYS_PER_4_YEARS = 1461l; | |
325 | static const long DAYS_PER_400_YEARS = 146097l; | |
1ef54dcf | 326 | |
f0f951fa VZ |
327 | // this array contains the cumulated number of days in all previous months for |
328 | // normal and leap years | |
329 | static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] = | |
330 | { | |
331 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }, | |
332 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 } | |
333 | }; | |
334 | ||
fcc3d7cb | 335 | // ---------------------------------------------------------------------------- |
2ef31e80 VZ |
336 | // global data |
337 | // ---------------------------------------------------------------------------- | |
338 | ||
1aaf88d2 WS |
339 | const wxChar * wxDefaultDateTimeFormat = wxT("%c"); |
340 | const wxChar * wxDefaultTimeSpanFormat = wxT("%H:%M:%S"); | |
341 | ||
384223b3 VZ |
342 | // in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to |
343 | // indicate an invalid wxDateTime object | |
56d0c5a6 | 344 | const wxDateTime wxDefaultDateTime; |
2ef31e80 VZ |
345 | |
346 | wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown; | |
347 | ||
b76b015e VZ |
348 | // ---------------------------------------------------------------------------- |
349 | // private functions | |
350 | // ---------------------------------------------------------------------------- | |
351 | ||
4f6aed9c VZ |
352 | // debugger helper: shows what the date really is |
353 | #ifdef __WXDEBUG__ | |
354 | extern const wxChar *wxDumpDate(const wxDateTime* dt) | |
355 | { | |
0de868d9 | 356 | static wxChar buf[128]; |
4f6aed9c VZ |
357 | |
358 | wxStrcpy(buf, dt->Format(_T("%Y-%m-%d (%a) %H:%M:%S"))); | |
359 | ||
360 | return buf; | |
361 | } | |
362 | #endif // Debug | |
363 | ||
fcc3d7cb VZ |
364 | // get the number of days in the given month of the given year |
365 | static inline | |
366 | wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month) | |
367 | { | |
e6ec579c VZ |
368 | // the number of days in month in Julian/Gregorian calendar: the first line |
369 | // is for normal years, the second one is for the leap ones | |
370 | static wxDateTime::wxDateTime_t daysInMonth[2][MONTHS_IN_YEAR] = | |
371 | { | |
372 | { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, | |
373 | { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } | |
374 | }; | |
375 | ||
376 | return daysInMonth[wxDateTime::IsLeapYear(year)][month]; | |
fcc3d7cb VZ |
377 | } |
378 | ||
c5432233 VZ |
379 | // returns the time zone in the C sense, i.e. the difference UTC - local |
380 | // (in seconds) | |
fcc3d7cb VZ |
381 | static int GetTimeZone() |
382 | { | |
68379eaf WS |
383 | // set to true when the timezone is set |
384 | static bool s_timezoneSet = false; | |
0779cc9a | 385 | static long gmtoffset = LONG_MAX; // invalid timezone |
c5432233 | 386 | |
a452689b | 387 | // ensure that the timezone variable is set by calling wxLocaltime_r |
fcc3d7cb VZ |
388 | if ( !s_timezoneSet ) |
389 | { | |
a452689b SN |
390 | // just call wxLocaltime_r() instead of figuring out whether this |
391 | // system supports tzset(), _tzset() or something else | |
c5432233 | 392 | time_t t = 0; |
3d561414 | 393 | struct tm tm; |
fcc3d7cb | 394 | |
3d561414 | 395 | wxLocaltime_r(&t, &tm); |
68379eaf | 396 | s_timezoneSet = true; |
c5432233 | 397 | |
44c930eb | 398 | #ifdef WX_GMTOFF_IN_TM |
c5432233 VZ |
399 | // note that GMT offset is the opposite of time zone and so to return |
400 | // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM | |
401 | // cases we have to negate it | |
3d561414 | 402 | gmtoffset = -tm.tm_gmtoff; |
44c930eb JG |
403 | #else // !WX_GMTOFF_IN_TM |
404 | gmtoffset = WX_TIMEZONE; | |
405 | #endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM | |
fcc3d7cb VZ |
406 | } |
407 | ||
0779cc9a | 408 | return (int)gmtoffset; |
fcc3d7cb VZ |
409 | } |
410 | ||
e6ec579c | 411 | // return the integral part of the JDN for the midnight of the given date (to |
1ef54dcf VZ |
412 | // get the real JDN you need to add 0.5, this is, in fact, JDN of the |
413 | // noon of the previous day) | |
e6ec579c VZ |
414 | static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, |
415 | wxDateTime::Month mon, | |
416 | int year) | |
417 | { | |
1ef54dcf VZ |
418 | // CREDIT: code below is by Scott E. Lee (but bugs are mine) |
419 | ||
420 | // check the date validity | |
421 | wxASSERT_MSG( | |
422 | (year > JDN_0_YEAR) || | |
423 | ((year == JDN_0_YEAR) && (mon > JDN_0_MONTH)) || | |
424 | ((year == JDN_0_YEAR) && (mon == JDN_0_MONTH) && (day >= JDN_0_DAY)), | |
425 | _T("date out of range - can't convert to JDN") | |
426 | ); | |
427 | ||
428 | // make the year positive to avoid problems with negative numbers division | |
429 | year += 4800; | |
430 | ||
431 | // months are counted from March here | |
432 | int month; | |
433 | if ( mon >= wxDateTime::Mar ) | |
e6ec579c | 434 | { |
1ef54dcf | 435 | month = mon - 2; |
e6ec579c | 436 | } |
1ef54dcf | 437 | else |
e6ec579c | 438 | { |
1ef54dcf VZ |
439 | month = mon + 10; |
440 | year--; | |
441 | } | |
e6ec579c | 442 | |
1ef54dcf VZ |
443 | // now we can simply add all the contributions together |
444 | return ((year / 100) * DAYS_PER_400_YEARS) / 4 | |
445 | + ((year % 100) * DAYS_PER_4_YEARS) / 4 | |
446 | + (month * DAYS_PER_5_MONTHS + 2) / 5 | |
447 | + day | |
448 | - JDN_OFFSET; | |
e6ec579c VZ |
449 | } |
450 | ||
bb7afa49 VZ |
451 | #ifdef HAVE_STRFTIME |
452 | ||
2423ef22 | 453 | // this function is a wrapper around strftime(3) adding error checking |
12e82477 | 454 | static wxString CallStrftime(const wxString& format, const tm* tm) |
b76b015e | 455 | { |
68ee7c47 | 456 | wxChar buf[4096]; |
594588aa MW |
457 | // Create temp wxString here to work around mingw/cygwin bug 1046059 |
458 | // http://sourceforge.net/tracker/?func=detail&atid=102435&aid=1046059&group_id=2435 | |
459 | wxString s; | |
460 | ||
ba9bbf13 | 461 | if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) ) |
b76b015e | 462 | { |
68ee7c47 | 463 | // buffer is too small? |
b76b015e VZ |
464 | wxFAIL_MSG(_T("strftime() failed")); |
465 | } | |
466 | ||
594588aa MW |
467 | s = buf; |
468 | return s; | |
b76b015e | 469 | } |
bb7afa49 VZ |
470 | |
471 | #endif // HAVE_STRFTIME | |
b76b015e | 472 | |
2423ef22 VZ |
473 | #ifdef HAVE_STRPTIME |
474 | ||
f536f005 VZ |
475 | #if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL) |
476 | // configure detected that we had strptime() but not its declaration, | |
477 | // provide it ourselves | |
e2620fda VZ |
478 | extern "C" char *strptime(const char *, const char *, struct tm *); |
479 | #endif | |
480 | ||
2423ef22 VZ |
481 | // Unicode-friendly strptime() wrapper |
482 | static const wxChar * | |
483 | CallStrptime(const wxChar *input, const char *fmt, tm *tm) | |
484 | { | |
485 | // the problem here is that strptime() returns pointer into the string we | |
486 | // passed to it while we're really interested in the pointer into the | |
487 | // original, Unicode, string so we try to transform the pointer back | |
488 | #if wxUSE_UNICODE | |
489 | wxCharBuffer inputMB(wxConvertWX2MB(input)); | |
490 | #else // ASCII | |
491 | const char * const inputMB = input; | |
492 | #endif // Unicode/Ascii | |
493 | ||
494 | const char *result = strptime(inputMB, fmt, tm); | |
495 | if ( !result ) | |
496 | return NULL; | |
497 | ||
498 | #if wxUSE_UNICODE | |
499 | // FIXME: this is wrong in presence of surrogates &c | |
500 | return input + (result - inputMB.data()); | |
501 | #else // ASCII | |
502 | return result; | |
503 | #endif // Unicode/Ascii | |
504 | } | |
505 | ||
506 | #endif // HAVE_STRPTIME | |
507 | ||
2f02cb89 VZ |
508 | // if year and/or month have invalid values, replace them with the current ones |
509 | static void ReplaceDefaultYearMonthWithCurrent(int *year, | |
510 | wxDateTime::Month *month) | |
511 | { | |
512 | struct tm *tmNow = NULL; | |
a452689b | 513 | struct tm tmstruct; |
2f02cb89 VZ |
514 | |
515 | if ( *year == wxDateTime::Inv_Year ) | |
516 | { | |
a452689b | 517 | tmNow = wxDateTime::GetTmNow(&tmstruct); |
2f02cb89 VZ |
518 | |
519 | *year = 1900 + tmNow->tm_year; | |
520 | } | |
521 | ||
522 | if ( *month == wxDateTime::Inv_Month ) | |
523 | { | |
524 | if ( !tmNow ) | |
a452689b | 525 | tmNow = wxDateTime::GetTmNow(&tmstruct); |
2f02cb89 VZ |
526 | |
527 | *month = (wxDateTime::Month)tmNow->tm_mon; | |
528 | } | |
529 | } | |
530 | ||
f0f951fa VZ |
531 | // fll the struct tm with default values |
532 | static void InitTm(struct tm& tm) | |
533 | { | |
534 | // struct tm may have etxra fields (undocumented and with unportable | |
535 | // names) which, nevertheless, must be set to 0 | |
536 | memset(&tm, 0, sizeof(struct tm)); | |
537 | ||
538 | tm.tm_mday = 1; // mday 0 is invalid | |
539 | tm.tm_year = 76; // any valid year | |
540 | tm.tm_isdst = -1; // auto determine | |
541 | } | |
542 | ||
cd0b1709 VZ |
543 | // parsing helpers |
544 | // --------------- | |
545 | ||
546 | // return the month if the string is a month name or Inv_Month otherwise | |
f0f951fa | 547 | static wxDateTime::Month GetMonthFromName(const wxString& name, int flags) |
cd0b1709 VZ |
548 | { |
549 | wxDateTime::Month mon; | |
550 | for ( mon = wxDateTime::Jan; mon < wxDateTime::Inv_Month; wxNextMonth(mon) ) | |
551 | { | |
f0f951fa VZ |
552 | // case-insensitive comparison either one of or with both abbreviated |
553 | // and not versions | |
554 | if ( flags & wxDateTime::Name_Full ) | |
cd0b1709 | 555 | { |
f0f951fa VZ |
556 | if ( name.CmpNoCase(wxDateTime:: |
557 | GetMonthName(mon, wxDateTime::Name_Full)) == 0 ) | |
558 | { | |
559 | break; | |
560 | } | |
561 | } | |
562 | ||
563 | if ( flags & wxDateTime::Name_Abbr ) | |
564 | { | |
565 | if ( name.CmpNoCase(wxDateTime:: | |
566 | GetMonthName(mon, wxDateTime::Name_Abbr)) == 0 ) | |
567 | { | |
568 | break; | |
569 | } | |
cd0b1709 VZ |
570 | } |
571 | } | |
572 | ||
573 | return mon; | |
574 | } | |
575 | ||
576 | // return the weekday if the string is a weekday name or Inv_WeekDay otherwise | |
f0f951fa | 577 | static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags) |
cd0b1709 VZ |
578 | { |
579 | wxDateTime::WeekDay wd; | |
580 | for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) ) | |
581 | { | |
f0f951fa VZ |
582 | // case-insensitive comparison either one of or with both abbreviated |
583 | // and not versions | |
584 | if ( flags & wxDateTime::Name_Full ) | |
cd0b1709 | 585 | { |
f0f951fa VZ |
586 | if ( name.CmpNoCase(wxDateTime:: |
587 | GetWeekDayName(wd, wxDateTime::Name_Full)) == 0 ) | |
588 | { | |
589 | break; | |
590 | } | |
591 | } | |
592 | ||
593 | if ( flags & wxDateTime::Name_Abbr ) | |
594 | { | |
595 | if ( name.CmpNoCase(wxDateTime:: | |
596 | GetWeekDayName(wd, wxDateTime::Name_Abbr)) == 0 ) | |
597 | { | |
598 | break; | |
599 | } | |
cd0b1709 VZ |
600 | } |
601 | } | |
602 | ||
603 | return wd; | |
604 | } | |
605 | ||
a452689b SN |
606 | /* static */ |
607 | struct tm *wxDateTime::GetTmNow(struct tm *tmstruct) | |
608 | { | |
609 | time_t t = GetTimeNow(); | |
610 | return wxLocaltime_r(&t, tmstruct); | |
611 | } | |
612 | ||
f6bcfd97 BP |
613 | // scans all digits (but no more than len) and returns the resulting number |
614 | static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number) | |
f0f951fa | 615 | { |
f6bcfd97 | 616 | size_t n = 1; |
f0f951fa VZ |
617 | wxString s; |
618 | while ( wxIsdigit(*p) ) | |
619 | { | |
620 | s += *p++; | |
f6bcfd97 BP |
621 | |
622 | if ( len && ++n > len ) | |
623 | break; | |
f0f951fa VZ |
624 | } |
625 | ||
bb8a8478 | 626 | return !s.empty() && s.ToULong(number); |
f0f951fa VZ |
627 | } |
628 | ||
629 | // scans all alphabetic characters and returns the resulting string | |
630 | static wxString GetAlphaToken(const wxChar*& p) | |
631 | { | |
632 | wxString s; | |
633 | while ( wxIsalpha(*p) ) | |
634 | { | |
635 | s += *p++; | |
636 | } | |
637 | ||
638 | return s; | |
639 | } | |
640 | ||
0979c962 VZ |
641 | // ============================================================================ |
642 | // implementation of wxDateTime | |
643 | // ============================================================================ | |
644 | ||
b76b015e VZ |
645 | // ---------------------------------------------------------------------------- |
646 | // struct Tm | |
647 | // ---------------------------------------------------------------------------- | |
648 | ||
649 | wxDateTime::Tm::Tm() | |
650 | { | |
651 | year = (wxDateTime_t)wxDateTime::Inv_Year; | |
652 | mon = wxDateTime::Inv_Month; | |
653 | mday = 0; | |
e6ec579c | 654 | hour = min = sec = msec = 0; |
b76b015e VZ |
655 | wday = wxDateTime::Inv_WeekDay; |
656 | } | |
657 | ||
299fcbfe VZ |
658 | wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz) |
659 | : m_tz(tz) | |
b76b015e | 660 | { |
e6ec579c | 661 | msec = 0; |
907173e5 WS |
662 | sec = (wxDateTime::wxDateTime_t)tm.tm_sec; |
663 | min = (wxDateTime::wxDateTime_t)tm.tm_min; | |
664 | hour = (wxDateTime::wxDateTime_t)tm.tm_hour; | |
665 | mday = (wxDateTime::wxDateTime_t)tm.tm_mday; | |
fcc3d7cb | 666 | mon = (wxDateTime::Month)tm.tm_mon; |
b76b015e | 667 | year = 1900 + tm.tm_year; |
bb8a8478 WS |
668 | wday = (wxDateTime::wxDateTime_t)tm.tm_wday; |
669 | yday = (wxDateTime::wxDateTime_t)tm.tm_yday; | |
b76b015e VZ |
670 | } |
671 | ||
672 | bool wxDateTime::Tm::IsValid() const | |
673 | { | |
674 | // we allow for the leap seconds, although we don't use them (yet) | |
fcc3d7cb | 675 | return (year != wxDateTime::Inv_Year) && (mon != wxDateTime::Inv_Month) && |
c5a1681b | 676 | (mday <= GetNumOfDaysInMonth(year, mon)) && |
e6ec579c | 677 | (hour < 24) && (min < 60) && (sec < 62) && (msec < 1000); |
b76b015e VZ |
678 | } |
679 | ||
680 | void wxDateTime::Tm::ComputeWeekDay() | |
681 | { | |
c5a1681b VZ |
682 | // compute the week day from day/month/year: we use the dumbest algorithm |
683 | // possible: just compute our JDN and then use the (simple to derive) | |
684 | // formula: weekday = (JDN + 1.5) % 7 | |
5a572f6c | 685 | wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7); |
b76b015e VZ |
686 | } |
687 | ||
e6ec579c | 688 | void wxDateTime::Tm::AddMonths(int monDiff) |
fcc3d7cb VZ |
689 | { |
690 | // normalize the months field | |
691 | while ( monDiff < -mon ) | |
692 | { | |
693 | year--; | |
694 | ||
695 | monDiff += MONTHS_IN_YEAR; | |
696 | } | |
697 | ||
2ef31e80 | 698 | while ( monDiff + mon >= MONTHS_IN_YEAR ) |
fcc3d7cb VZ |
699 | { |
700 | year++; | |
239446b4 VZ |
701 | |
702 | monDiff -= MONTHS_IN_YEAR; | |
fcc3d7cb VZ |
703 | } |
704 | ||
705 | mon = (wxDateTime::Month)(mon + monDiff); | |
706 | ||
e6ec579c | 707 | wxASSERT_MSG( mon >= 0 && mon < MONTHS_IN_YEAR, _T("logic error") ); |
4f6aed9c VZ |
708 | |
709 | // NB: we don't check here that the resulting date is valid, this function | |
710 | // is private and the caller must check it if needed | |
fcc3d7cb VZ |
711 | } |
712 | ||
e6ec579c | 713 | void wxDateTime::Tm::AddDays(int dayDiff) |
fcc3d7cb VZ |
714 | { |
715 | // normalize the days field | |
9d9b7755 | 716 | while ( dayDiff + mday < 1 ) |
fcc3d7cb VZ |
717 | { |
718 | AddMonths(-1); | |
719 | ||
9d9b7755 | 720 | dayDiff += GetNumOfDaysInMonth(year, mon); |
fcc3d7cb VZ |
721 | } |
722 | ||
907173e5 | 723 | mday = (wxDateTime::wxDateTime_t)( mday + dayDiff ); |
fcc3d7cb VZ |
724 | while ( mday > GetNumOfDaysInMonth(year, mon) ) |
725 | { | |
726 | mday -= GetNumOfDaysInMonth(year, mon); | |
727 | ||
728 | AddMonths(1); | |
729 | } | |
730 | ||
731 | wxASSERT_MSG( mday > 0 && mday <= GetNumOfDaysInMonth(year, mon), | |
732 | _T("logic error") ); | |
733 | } | |
734 | ||
735 | // ---------------------------------------------------------------------------- | |
736 | // class TimeZone | |
737 | // ---------------------------------------------------------------------------- | |
738 | ||
739 | wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) | |
740 | { | |
741 | switch ( tz ) | |
742 | { | |
743 | case wxDateTime::Local: | |
299fcbfe VZ |
744 | // get the offset from C RTL: it returns the difference GMT-local |
745 | // while we want to have the offset _from_ GMT, hence the '-' | |
746 | m_offset = -GetTimeZone(); | |
fcc3d7cb VZ |
747 | break; |
748 | ||
749 | case wxDateTime::GMT_12: | |
750 | case wxDateTime::GMT_11: | |
751 | case wxDateTime::GMT_10: | |
752 | case wxDateTime::GMT_9: | |
753 | case wxDateTime::GMT_8: | |
754 | case wxDateTime::GMT_7: | |
755 | case wxDateTime::GMT_6: | |
756 | case wxDateTime::GMT_5: | |
757 | case wxDateTime::GMT_4: | |
758 | case wxDateTime::GMT_3: | |
759 | case wxDateTime::GMT_2: | |
760 | case wxDateTime::GMT_1: | |
299fcbfe | 761 | m_offset = -3600*(wxDateTime::GMT0 - tz); |
fcc3d7cb VZ |
762 | break; |
763 | ||
764 | case wxDateTime::GMT0: | |
765 | case wxDateTime::GMT1: | |
766 | case wxDateTime::GMT2: | |
767 | case wxDateTime::GMT3: | |
768 | case wxDateTime::GMT4: | |
769 | case wxDateTime::GMT5: | |
770 | case wxDateTime::GMT6: | |
771 | case wxDateTime::GMT7: | |
772 | case wxDateTime::GMT8: | |
773 | case wxDateTime::GMT9: | |
774 | case wxDateTime::GMT10: | |
775 | case wxDateTime::GMT11: | |
776 | case wxDateTime::GMT12: | |
34f90a1c | 777 | case wxDateTime::GMT13: |
299fcbfe | 778 | m_offset = 3600*(tz - wxDateTime::GMT0); |
fcc3d7cb VZ |
779 | break; |
780 | ||
781 | case wxDateTime::A_CST: | |
782 | // Central Standard Time in use in Australia = UTC + 9.5 | |
d26adb9d | 783 | m_offset = 60l*(9*MIN_PER_HOUR + MIN_PER_HOUR/2); |
fcc3d7cb VZ |
784 | break; |
785 | ||
786 | default: | |
787 | wxFAIL_MSG( _T("unknown time zone") ); | |
788 | } | |
789 | } | |
790 | ||
b76b015e VZ |
791 | // ---------------------------------------------------------------------------- |
792 | // static functions | |
793 | // ---------------------------------------------------------------------------- | |
794 | ||
795 | /* static */ | |
796 | bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal) | |
797 | { | |
2f02cb89 VZ |
798 | if ( year == Inv_Year ) |
799 | year = GetCurrentYear(); | |
800 | ||
b76b015e VZ |
801 | if ( cal == Gregorian ) |
802 | { | |
803 | // in Gregorian calendar leap years are those divisible by 4 except | |
804 | // those divisible by 100 unless they're also divisible by 400 | |
805 | // (in some countries, like Russia and Greece, additional corrections | |
806 | // exist, but they won't manifest themselves until 2700) | |
807 | return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)); | |
808 | } | |
809 | else if ( cal == Julian ) | |
810 | { | |
811 | // in Julian calendar the rule is simpler | |
812 | return year % 4 == 0; | |
813 | } | |
814 | else | |
815 | { | |
816 | wxFAIL_MSG(_T("unknown calendar")); | |
817 | ||
68379eaf | 818 | return false; |
b76b015e VZ |
819 | } |
820 | } | |
821 | ||
fcc3d7cb VZ |
822 | /* static */ |
823 | int wxDateTime::GetCentury(int year) | |
824 | { | |
825 | return year > 0 ? year / 100 : year / 100 - 1; | |
826 | } | |
827 | ||
b76b015e VZ |
828 | /* static */ |
829 | int wxDateTime::ConvertYearToBC(int year) | |
830 | { | |
831 | // year 0 is BC 1 | |
832 | return year > 0 ? year : year - 1; | |
833 | } | |
834 | ||
835 | /* static */ | |
836 | int wxDateTime::GetCurrentYear(wxDateTime::Calendar cal) | |
837 | { | |
838 | switch ( cal ) | |
839 | { | |
840 | case Gregorian: | |
841 | return Now().GetYear(); | |
842 | ||
843 | case Julian: | |
844 | wxFAIL_MSG(_T("TODO")); | |
845 | break; | |
846 | ||
847 | default: | |
848 | wxFAIL_MSG(_T("unsupported calendar")); | |
849 | break; | |
850 | } | |
851 | ||
852 | return Inv_Year; | |
853 | } | |
854 | ||
855 | /* static */ | |
856 | wxDateTime::Month wxDateTime::GetCurrentMonth(wxDateTime::Calendar cal) | |
857 | { | |
858 | switch ( cal ) | |
859 | { | |
860 | case Gregorian: | |
861 | return Now().GetMonth(); | |
b76b015e VZ |
862 | |
863 | case Julian: | |
864 | wxFAIL_MSG(_T("TODO")); | |
865 | break; | |
866 | ||
867 | default: | |
868 | wxFAIL_MSG(_T("unsupported calendar")); | |
869 | break; | |
870 | } | |
871 | ||
872 | return Inv_Month; | |
873 | } | |
874 | ||
2f02cb89 VZ |
875 | /* static */ |
876 | wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(int year, Calendar cal) | |
877 | { | |
878 | if ( year == Inv_Year ) | |
879 | { | |
880 | // take the current year if none given | |
881 | year = GetCurrentYear(); | |
882 | } | |
883 | ||
884 | switch ( cal ) | |
885 | { | |
886 | case Gregorian: | |
887 | case Julian: | |
888 | return IsLeapYear(year) ? 366 : 365; | |
2f02cb89 VZ |
889 | |
890 | default: | |
891 | wxFAIL_MSG(_T("unsupported calendar")); | |
892 | break; | |
893 | } | |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
b76b015e VZ |
898 | /* static */ |
899 | wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month, | |
900 | int year, | |
901 | wxDateTime::Calendar cal) | |
902 | { | |
fcc3d7cb | 903 | wxCHECK_MSG( month < MONTHS_IN_YEAR, 0, _T("invalid month") ); |
b76b015e VZ |
904 | |
905 | if ( cal == Gregorian || cal == Julian ) | |
906 | { | |
907 | if ( year == Inv_Year ) | |
908 | { | |
909 | // take the current year if none given | |
910 | year = GetCurrentYear(); | |
911 | } | |
912 | ||
fcc3d7cb | 913 | return GetNumOfDaysInMonth(year, month); |
b76b015e VZ |
914 | } |
915 | else | |
916 | { | |
917 | wxFAIL_MSG(_T("unsupported calendar")); | |
918 | ||
919 | return 0; | |
920 | } | |
921 | } | |
922 | ||
923 | /* static */ | |
f0f951fa VZ |
924 | wxString wxDateTime::GetMonthName(wxDateTime::Month month, |
925 | wxDateTime::NameFlags flags) | |
b76b015e | 926 | { |
525d8583 | 927 | wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") ); |
bb7afa49 | 928 | #ifdef HAVE_STRFTIME |
68ee7c47 VZ |
929 | // notice that we must set all the fields to avoid confusing libc (GNU one |
930 | // gets confused to a crash if we don't do this) | |
cd0b1709 | 931 | tm tm; |
f0f951fa | 932 | InitTm(tm); |
cd0b1709 | 933 | tm.tm_mon = month; |
b76b015e | 934 | |
f0f951fa | 935 | return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm); |
bb7afa49 | 936 | #else // !HAVE_STRFTIME |
ba9bbf13 WS |
937 | wxString ret; |
938 | switch(month) | |
939 | { | |
940 | case Jan: | |
941 | ret = (flags == Name_Abbr ? wxT("Jan"): wxT("January")); | |
942 | break; | |
943 | case Feb: | |
944 | ret = (flags == Name_Abbr ? wxT("Feb"): wxT("Febuary")); | |
945 | break; | |
946 | case Mar: | |
947 | ret = (flags == Name_Abbr ? wxT("Mar"): wxT("March")); | |
948 | break; | |
949 | case Apr: | |
950 | ret = (flags == Name_Abbr ? wxT("Apr"): wxT("April")); | |
951 | break; | |
952 | case May: | |
953 | ret = (flags == Name_Abbr ? wxT("May"): wxT("May")); | |
954 | break; | |
955 | case Jun: | |
956 | ret = (flags == Name_Abbr ? wxT("Jun"): wxT("June")); | |
957 | break; | |
958 | case Jul: | |
959 | ret = (flags == Name_Abbr ? wxT("Jul"): wxT("July")); | |
960 | break; | |
961 | case Aug: | |
962 | ret = (flags == Name_Abbr ? wxT("Aug"): wxT("August")); | |
963 | break; | |
964 | case Sep: | |
965 | ret = (flags == Name_Abbr ? wxT("Sep"): wxT("September")); | |
966 | break; | |
967 | case Oct: | |
968 | ret = (flags == Name_Abbr ? wxT("Oct"): wxT("October")); | |
969 | break; | |
970 | case Nov: | |
971 | ret = (flags == Name_Abbr ? wxT("Nov"): wxT("November")); | |
972 | break; | |
973 | case Dec: | |
974 | ret = (flags == Name_Abbr ? wxT("Dec"): wxT("December")); | |
975 | break; | |
976 | } | |
977 | return ret; | |
bb7afa49 | 978 | #endif // HAVE_STRFTIME/!HAVE_STRFTIME |
b76b015e VZ |
979 | } |
980 | ||
981 | /* static */ | |
f0f951fa VZ |
982 | wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, |
983 | wxDateTime::NameFlags flags) | |
b76b015e | 984 | { |
525d8583 | 985 | wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") ); |
bb7afa49 | 986 | #ifdef HAVE_STRFTIME |
2c622d71 VZ |
987 | // take some arbitrary Sunday (but notice that the day should be such that |
988 | // after adding wday to it below we still have a valid date, e.g. don't | |
989 | // take 28 here!) | |
f0f951fa VZ |
990 | tm tm; |
991 | InitTm(tm); | |
2c622d71 | 992 | tm.tm_mday = 21; |
f0f951fa VZ |
993 | tm.tm_mon = Nov; |
994 | tm.tm_year = 99; | |
b76b015e | 995 | |
1ef54dcf | 996 | // and offset it by the number of days needed to get the correct wday |
b76b015e VZ |
997 | tm.tm_mday += wday; |
998 | ||
c5a1681b VZ |
999 | // call mktime() to normalize it... |
1000 | (void)mktime(&tm); | |
1001 | ||
1002 | // ... and call strftime() | |
f0f951fa | 1003 | return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm); |
bb7afa49 | 1004 | #else // !HAVE_STRFTIME |
ba9bbf13 WS |
1005 | wxString ret; |
1006 | switch(wday) | |
1007 | { | |
1008 | case Sun: | |
1009 | ret = (flags == Name_Abbr ? wxT("Sun") : wxT("Sunday")); | |
1010 | break; | |
1011 | case Mon: | |
1012 | ret = (flags == Name_Abbr ? wxT("Mon") : wxT("Monday")); | |
1013 | break; | |
1014 | case Tue: | |
1015 | ret = (flags == Name_Abbr ? wxT("Tue") : wxT("Tuesday")); | |
1016 | break; | |
1017 | case Wed: | |
1018 | ret = (flags == Name_Abbr ? wxT("Wed") : wxT("Wednesday")); | |
1019 | break; | |
1020 | case Thu: | |
1021 | ret = (flags == Name_Abbr ? wxT("Thu") : wxT("Thursday")); | |
1022 | break; | |
1023 | case Fri: | |
1024 | ret = (flags == Name_Abbr ? wxT("Fri") : wxT("Friday")); | |
1025 | break; | |
1026 | case Sat: | |
1027 | ret = (flags == Name_Abbr ? wxT("Sat") : wxT("Saturday")); | |
1028 | break; | |
1029 | } | |
1030 | return ret; | |
bb7afa49 | 1031 | #endif // HAVE_STRFTIME/!HAVE_STRFTIME |
f0f951fa VZ |
1032 | } |
1033 | ||
1034 | /* static */ | |
1035 | void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) | |
1036 | { | |
1037 | tm tm; | |
1038 | InitTm(tm); | |
653567bb | 1039 | wxChar buffer[64]; |
0308fd61 JS |
1040 | // @Note: Do not call 'CallStrftime' here! CallStrftime checks the return code |
1041 | // and causes an assertion failed if the buffer is to small (which is good) - OR - | |
1042 | // if strftime does not return anything because the format string is invalid - OR - | |
1043 | // if there are no 'am' / 'pm' tokens defined for the current locale (which is not good). | |
1044 | // wxDateTime::ParseTime will try several different formats to parse the time. | |
1045 | // As a result, GetAmPmStrings might get called, even if the current locale | |
1046 | // does not define any 'am' / 'pm' tokens. In this case, wxStrftime would | |
1047 | // assert, even though it is a perfectly legal use. | |
f0f951fa VZ |
1048 | if ( am ) |
1049 | { | |
10a2749b | 1050 | if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) |
0308fd61 JS |
1051 | *am = wxString(buffer); |
1052 | else | |
1053 | *am = wxString(); | |
f0f951fa VZ |
1054 | } |
1055 | if ( pm ) | |
1056 | { | |
1057 | tm.tm_hour = 13; | |
10a2749b | 1058 | if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) |
0308fd61 JS |
1059 | *pm = wxString(buffer); |
1060 | else | |
1061 | *pm = wxString(); | |
f0f951fa | 1062 | } |
b76b015e VZ |
1063 | } |
1064 | ||
239446b4 VZ |
1065 | // ---------------------------------------------------------------------------- |
1066 | // Country stuff: date calculations depend on the country (DST, work days, | |
1067 | // ...), so we need to know which rules to follow. | |
1068 | // ---------------------------------------------------------------------------- | |
1069 | ||
1070 | /* static */ | |
1071 | wxDateTime::Country wxDateTime::GetCountry() | |
1072 | { | |
f0f951fa | 1073 | // TODO use LOCALE_ICOUNTRY setting under Win32 |
77b88df2 | 1074 | #ifndef __WXWINCE__ |
239446b4 VZ |
1075 | if ( ms_country == Country_Unknown ) |
1076 | { | |
1077 | // try to guess from the time zone name | |
1078 | time_t t = time(NULL); | |
a452689b SN |
1079 | struct tm tmstruct; |
1080 | struct tm *tm = wxLocaltime_r(&t, &tmstruct); | |
239446b4 VZ |
1081 | |
1082 | wxString tz = CallStrftime(_T("%Z"), tm); | |
1083 | if ( tz == _T("WET") || tz == _T("WEST") ) | |
1084 | { | |
1085 | ms_country = UK; | |
1086 | } | |
1087 | else if ( tz == _T("CET") || tz == _T("CEST") ) | |
1088 | { | |
1089 | ms_country = Country_EEC; | |
1090 | } | |
1091 | else if ( tz == _T("MSK") || tz == _T("MSD") ) | |
1092 | { | |
1093 | ms_country = Russia; | |
1094 | } | |
1095 | else if ( tz == _T("AST") || tz == _T("ADT") || | |
1096 | tz == _T("EST") || tz == _T("EDT") || | |
1097 | tz == _T("CST") || tz == _T("CDT") || | |
1098 | tz == _T("MST") || tz == _T("MDT") || | |
1099 | tz == _T("PST") || tz == _T("PDT") ) | |
1100 | { | |
1101 | ms_country = USA; | |
1102 | } | |
1103 | else | |
1104 | { | |
1105 | // well, choose a default one | |
1106 | ms_country = USA; | |
1107 | } | |
1108 | } | |
bb7afa49 | 1109 | #else // __WXWINCE__ |
77b88df2 | 1110 | ms_country = USA; |
bb7afa49 | 1111 | #endif // !__WXWINCE__/__WXWINCE__ |
239446b4 VZ |
1112 | |
1113 | return ms_country; | |
1114 | } | |
1115 | ||
1116 | /* static */ | |
1117 | void wxDateTime::SetCountry(wxDateTime::Country country) | |
1118 | { | |
1119 | ms_country = country; | |
1120 | } | |
1121 | ||
1122 | /* static */ | |
1123 | bool wxDateTime::IsWestEuropeanCountry(Country country) | |
1124 | { | |
1125 | if ( country == Country_Default ) | |
1126 | { | |
1127 | country = GetCountry(); | |
1128 | } | |
1129 | ||
1130 | return (Country_WesternEurope_Start <= country) && | |
1131 | (country <= Country_WesternEurope_End); | |
1132 | } | |
1133 | ||
1134 | // ---------------------------------------------------------------------------- | |
1135 | // DST calculations: we use 3 different rules for the West European countries, | |
1136 | // USA and for the rest of the world. This is undoubtedly false for many | |
1137 | // countries, but I lack the necessary info (and the time to gather it), | |
1138 | // please add the other rules here! | |
1139 | // ---------------------------------------------------------------------------- | |
1140 | ||
1141 | /* static */ | |
1142 | bool wxDateTime::IsDSTApplicable(int year, Country country) | |
1143 | { | |
1144 | if ( year == Inv_Year ) | |
1145 | { | |
1146 | // take the current year if none given | |
1147 | year = GetCurrentYear(); | |
1148 | } | |
1149 | ||
1150 | if ( country == Country_Default ) | |
1151 | { | |
1152 | country = GetCountry(); | |
1153 | } | |
1154 | ||
1155 | switch ( country ) | |
1156 | { | |
1157 | case USA: | |
1158 | case UK: | |
1159 | // DST was first observed in the US and UK during WWI, reused | |
1160 | // during WWII and used again since 1966 | |
1161 | return year >= 1966 || | |
1162 | (year >= 1942 && year <= 1945) || | |
1163 | (year == 1918 || year == 1919); | |
1164 | ||
1165 | default: | |
1166 | // assume that it started after WWII | |
1167 | return year > 1950; | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | /* static */ | |
1172 | wxDateTime wxDateTime::GetBeginDST(int year, Country country) | |
1173 | { | |
1174 | if ( year == Inv_Year ) | |
1175 | { | |
1176 | // take the current year if none given | |
1177 | year = GetCurrentYear(); | |
1178 | } | |
1179 | ||
1180 | if ( country == Country_Default ) | |
1181 | { | |
1182 | country = GetCountry(); | |
1183 | } | |
1184 | ||
1185 | if ( !IsDSTApplicable(year, country) ) | |
1186 | { | |
2ef31e80 | 1187 | return wxInvalidDateTime; |
239446b4 VZ |
1188 | } |
1189 | ||
1190 | wxDateTime dt; | |
1191 | ||
1192 | if ( IsWestEuropeanCountry(country) || (country == Russia) ) | |
1193 | { | |
1194 | // DST begins at 1 a.m. GMT on the last Sunday of March | |
1195 | if ( !dt.SetToLastWeekDay(Sun, Mar, year) ) | |
1196 | { | |
1197 | // weird... | |
1198 | wxFAIL_MSG( _T("no last Sunday in March?") ); | |
1199 | } | |
1200 | ||
1201 | dt += wxTimeSpan::Hours(1); | |
1202 | ||
41acf5c0 | 1203 | // disable DST tests because it could result in an infinite recursion! |
68379eaf | 1204 | dt.MakeGMT(true); |
239446b4 VZ |
1205 | } |
1206 | else switch ( country ) | |
1207 | { | |
1208 | case USA: | |
1209 | switch ( year ) | |
1210 | { | |
1211 | case 1918: | |
1212 | case 1919: | |
1213 | // don't know for sure - assume it was in effect all year | |
1214 | ||
1215 | case 1943: | |
1216 | case 1944: | |
1217 | case 1945: | |
1218 | dt.Set(1, Jan, year); | |
1219 | break; | |
1220 | ||
1221 | case 1942: | |
1222 | // DST was installed Feb 2, 1942 by the Congress | |
1223 | dt.Set(2, Feb, year); | |
1224 | break; | |
1225 | ||
1226 | // Oil embargo changed the DST period in the US | |
1227 | case 1974: | |
1228 | dt.Set(6, Jan, 1974); | |
1229 | break; | |
1230 | ||
1231 | case 1975: | |
1232 | dt.Set(23, Feb, 1975); | |
1233 | break; | |
1234 | ||
1235 | default: | |
1236 | // before 1986, DST begun on the last Sunday of April, but | |
1237 | // in 1986 Reagan changed it to begin at 2 a.m. of the | |
1238 | // first Sunday in April | |
1239 | if ( year < 1986 ) | |
1240 | { | |
1241 | if ( !dt.SetToLastWeekDay(Sun, Apr, year) ) | |
1242 | { | |
1243 | // weird... | |
1244 | wxFAIL_MSG( _T("no first Sunday in April?") ); | |
1245 | } | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | if ( !dt.SetToWeekDay(Sun, 1, Apr, year) ) | |
1250 | { | |
1251 | // weird... | |
1252 | wxFAIL_MSG( _T("no first Sunday in April?") ); | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | dt += wxTimeSpan::Hours(2); | |
1257 | ||
1258 | // TODO what about timezone?? | |
1259 | } | |
1260 | ||
1261 | break; | |
1262 | ||
1263 | default: | |
1264 | // assume Mar 30 as the start of the DST for the rest of the world | |
1265 | // - totally bogus, of course | |
1266 | dt.Set(30, Mar, year); | |
1267 | } | |
1268 | ||
1269 | return dt; | |
1270 | } | |
1271 | ||
1272 | /* static */ | |
1273 | wxDateTime wxDateTime::GetEndDST(int year, Country country) | |
1274 | { | |
1275 | if ( year == Inv_Year ) | |
1276 | { | |
1277 | // take the current year if none given | |
1278 | year = GetCurrentYear(); | |
1279 | } | |
1280 | ||
1281 | if ( country == Country_Default ) | |
1282 | { | |
1283 | country = GetCountry(); | |
1284 | } | |
1285 | ||
1286 | if ( !IsDSTApplicable(year, country) ) | |
1287 | { | |
2ef31e80 | 1288 | return wxInvalidDateTime; |
239446b4 VZ |
1289 | } |
1290 | ||
1291 | wxDateTime dt; | |
1292 | ||
1293 | if ( IsWestEuropeanCountry(country) || (country == Russia) ) | |
1294 | { | |
5f287370 | 1295 | // DST ends at 1 a.m. GMT on the last Sunday of October |
239446b4 VZ |
1296 | if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) |
1297 | { | |
1298 | // weirder and weirder... | |
1299 | wxFAIL_MSG( _T("no last Sunday in October?") ); | |
1300 | } | |
1301 | ||
1302 | dt += wxTimeSpan::Hours(1); | |
1303 | ||
41acf5c0 | 1304 | // disable DST tests because it could result in an infinite recursion! |
68379eaf | 1305 | dt.MakeGMT(true); |
239446b4 VZ |
1306 | } |
1307 | else switch ( country ) | |
1308 | { | |
1309 | case USA: | |
1310 | switch ( year ) | |
1311 | { | |
1312 | case 1918: | |
1313 | case 1919: | |
1314 | // don't know for sure - assume it was in effect all year | |
1315 | ||
1316 | case 1943: | |
1317 | case 1944: | |
1318 | dt.Set(31, Dec, year); | |
1319 | break; | |
1320 | ||
1321 | case 1945: | |
1322 | // the time was reset after the end of the WWII | |
1323 | dt.Set(30, Sep, year); | |
1324 | break; | |
1325 | ||
1326 | default: | |
5f287370 | 1327 | // DST ends at 2 a.m. on the last Sunday of October |
239446b4 VZ |
1328 | if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) |
1329 | { | |
1330 | // weirder and weirder... | |
1331 | wxFAIL_MSG( _T("no last Sunday in October?") ); | |
1332 | } | |
1333 | ||
1334 | dt += wxTimeSpan::Hours(2); | |
1335 | ||
1336 | // TODO what about timezone?? | |
1337 | } | |
1338 | break; | |
1339 | ||
1340 | default: | |
1341 | // assume October 26th as the end of the DST - totally bogus too | |
1342 | dt.Set(26, Oct, year); | |
1343 | } | |
1344 | ||
1345 | return dt; | |
1346 | } | |
1347 | ||
0979c962 VZ |
1348 | // ---------------------------------------------------------------------------- |
1349 | // constructors and assignment operators | |
1350 | // ---------------------------------------------------------------------------- | |
1351 | ||
f6bcfd97 BP |
1352 | // return the current time with ms precision |
1353 | /* static */ wxDateTime wxDateTime::UNow() | |
1354 | { | |
1355 | return wxDateTime(wxGetLocalTimeMillis()); | |
1356 | } | |
1357 | ||
299fcbfe VZ |
1358 | // the values in the tm structure contain the local time |
1359 | wxDateTime& wxDateTime::Set(const struct tm& tm) | |
0979c962 | 1360 | { |
299fcbfe | 1361 | struct tm tm2(tm); |
b76b015e | 1362 | time_t timet = mktime(&tm2); |
1ef54dcf | 1363 | |
4afd7529 | 1364 | if ( timet == (time_t)-1 ) |
0979c962 | 1365 | { |
4afd7529 VZ |
1366 | // mktime() rather unintuitively fails for Jan 1, 1970 if the hour is |
1367 | // less than timezone - try to make it work for this case | |
1368 | if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 ) | |
1369 | { | |
3d78a532 RD |
1370 | return Set((time_t)( |
1371 | GetTimeZone() + | |
1372 | tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN + | |
1373 | tm2.tm_min * SEC_PER_MIN + | |
1374 | tm2.tm_sec)); | |
4afd7529 VZ |
1375 | } |
1376 | ||
1377 | wxFAIL_MSG( _T("mktime() failed") ); | |
0979c962 | 1378 | |
384223b3 VZ |
1379 | *this = wxInvalidDateTime; |
1380 | ||
1381 | return *this; | |
0979c962 VZ |
1382 | } |
1383 | else | |
1384 | { | |
1385 | return Set(timet); | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | wxDateTime& wxDateTime::Set(wxDateTime_t hour, | |
1390 | wxDateTime_t minute, | |
1391 | wxDateTime_t second, | |
1392 | wxDateTime_t millisec) | |
1393 | { | |
1394 | // we allow seconds to be 61 to account for the leap seconds, even if we | |
1395 | // don't use them really | |
384223b3 VZ |
1396 | wxDATETIME_CHECK( hour < 24 && |
1397 | second < 62 && | |
1398 | minute < 60 && | |
1399 | millisec < 1000, | |
1400 | _T("Invalid time in wxDateTime::Set()") ); | |
0979c962 VZ |
1401 | |
1402 | // get the current date from system | |
a452689b SN |
1403 | struct tm tmstruct; |
1404 | struct tm *tm = GetTmNow(&tmstruct); | |
299fcbfe | 1405 | |
a452689b | 1406 | wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") ); |
0979c962 | 1407 | |
456639ac VZ |
1408 | // make a copy so it isn't clobbered by the call to mktime() below |
1409 | struct tm tm1(*tm); | |
1410 | ||
0979c962 | 1411 | // adjust the time |
456639ac VZ |
1412 | tm1.tm_hour = hour; |
1413 | tm1.tm_min = minute; | |
1414 | tm1.tm_sec = second; | |
0979c962 | 1415 | |
9cc311d3 | 1416 | // and the DST in case it changes on this date |
456639ac | 1417 | struct tm tm2(tm1); |
9cc311d3 | 1418 | mktime(&tm2); |
456639ac VZ |
1419 | if ( tm2.tm_isdst != tm1.tm_isdst ) |
1420 | tm1.tm_isdst = tm2.tm_isdst; | |
9cc311d3 | 1421 | |
456639ac | 1422 | (void)Set(tm1); |
0979c962 VZ |
1423 | |
1424 | // and finally adjust milliseconds | |
1425 | return SetMillisecond(millisec); | |
1426 | } | |
1427 | ||
1428 | wxDateTime& wxDateTime::Set(wxDateTime_t day, | |
1429 | Month month, | |
1430 | int year, | |
1431 | wxDateTime_t hour, | |
1432 | wxDateTime_t minute, | |
1433 | wxDateTime_t second, | |
1434 | wxDateTime_t millisec) | |
1435 | { | |
384223b3 VZ |
1436 | wxDATETIME_CHECK( hour < 24 && |
1437 | second < 62 && | |
1438 | minute < 60 && | |
1439 | millisec < 1000, | |
1440 | _T("Invalid time in wxDateTime::Set()") ); | |
0979c962 | 1441 | |
2f02cb89 | 1442 | ReplaceDefaultYearMonthWithCurrent(&year, &month); |
0979c962 | 1443 | |
384223b3 VZ |
1444 | wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)), |
1445 | _T("Invalid date in wxDateTime::Set()") ); | |
0979c962 VZ |
1446 | |
1447 | // the range of time_t type (inclusive) | |
1448 | static const int yearMinInRange = 1970; | |
1449 | static const int yearMaxInRange = 2037; | |
1450 | ||
1451 | // test only the year instead of testing for the exact end of the Unix | |
1452 | // time_t range - it doesn't bring anything to do more precise checks | |
2f02cb89 | 1453 | if ( year >= yearMinInRange && year <= yearMaxInRange ) |
0979c962 VZ |
1454 | { |
1455 | // use the standard library version if the date is in range - this is | |
b76b015e | 1456 | // probably more efficient than our code |
0979c962 | 1457 | struct tm tm; |
b76b015e | 1458 | tm.tm_year = year - 1900; |
0979c962 VZ |
1459 | tm.tm_mon = month; |
1460 | tm.tm_mday = day; | |
1461 | tm.tm_hour = hour; | |
1462 | tm.tm_min = minute; | |
1463 | tm.tm_sec = second; | |
299fcbfe | 1464 | tm.tm_isdst = -1; // mktime() will guess it |
0979c962 VZ |
1465 | |
1466 | (void)Set(tm); | |
1467 | ||
1468 | // and finally adjust milliseconds | |
3d78a532 RD |
1469 | if (IsValid()) |
1470 | SetMillisecond(millisec); | |
1471 | ||
1472 | return *this; | |
0979c962 VZ |
1473 | } |
1474 | else | |
1475 | { | |
1476 | // do time calculations ourselves: we want to calculate the number of | |
fcc3d7cb | 1477 | // milliseconds between the given date and the epoch |
e6ec579c VZ |
1478 | |
1479 | // get the JDN for the midnight of this day | |
1480 | m_time = GetTruncatedJDN(day, month, year); | |
1481 | m_time -= EPOCH_JDN; | |
1482 | m_time *= SECONDS_PER_DAY * TIME_T_FACTOR; | |
1483 | ||
299fcbfe VZ |
1484 | // JDN corresponds to GMT, we take localtime |
1485 | Add(wxTimeSpan(hour, minute, second + GetTimeZone(), millisec)); | |
b76b015e VZ |
1486 | } |
1487 | ||
1488 | return *this; | |
1489 | } | |
1490 | ||
e6ec579c VZ |
1491 | wxDateTime& wxDateTime::Set(double jdn) |
1492 | { | |
1ef54dcf VZ |
1493 | // so that m_time will be 0 for the midnight of Jan 1, 1970 which is jdn |
1494 | // EPOCH_JDN + 0.5 | |
1495 | jdn -= EPOCH_JDN + 0.5; | |
1496 | ||
d26adb9d | 1497 | m_time.Assign(jdn*MILLISECONDS_PER_DAY); |
cd0b1709 | 1498 | |
d26adb9d | 1499 | // JDNs always are in UTC, so we don't need any adjustments for time zone |
e6ec579c VZ |
1500 | |
1501 | return *this; | |
1502 | } | |
1503 | ||
9d9b7755 VZ |
1504 | wxDateTime& wxDateTime::ResetTime() |
1505 | { | |
1506 | Tm tm = GetTm(); | |
1507 | ||
1508 | if ( tm.hour || tm.min || tm.sec || tm.msec ) | |
1509 | { | |
1510 | tm.msec = | |
1511 | tm.sec = | |
1512 | tm.min = | |
1513 | tm.hour = 0; | |
1514 | ||
1515 | Set(tm); | |
1516 | } | |
1517 | ||
1518 | return *this; | |
1519 | } | |
1520 | ||
fb96cf85 VZ |
1521 | wxDateTime wxDateTime::GetDateOnly() const |
1522 | { | |
1523 | Tm tm = GetTm(); | |
1524 | tm.msec = | |
1525 | tm.sec = | |
1526 | tm.min = | |
1527 | tm.hour = 0; | |
1528 | return wxDateTime(tm); | |
1529 | } | |
1530 | ||
2b5f62a0 VZ |
1531 | // ---------------------------------------------------------------------------- |
1532 | // DOS Date and Time Format functions | |
1533 | // ---------------------------------------------------------------------------- | |
1534 | // the dos date and time value is an unsigned 32 bit value in the format: | |
1535 | // YYYYYYYMMMMDDDDDhhhhhmmmmmmsssss | |
1536 | // | |
1537 | // Y = year offset from 1980 (0-127) | |
1538 | // M = month (1-12) | |
1539 | // D = day of month (1-31) | |
1540 | // h = hour (0-23) | |
1541 | // m = minute (0-59) | |
1542 | // s = bisecond (0-29) each bisecond indicates two seconds | |
1543 | // ---------------------------------------------------------------------------- | |
1544 | ||
1545 | wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt) | |
1546 | { | |
1547 | struct tm tm; | |
4739346e | 1548 | InitTm(tm); |
2b5f62a0 VZ |
1549 | |
1550 | long year = ddt & 0xFE000000; | |
1551 | year >>= 25; | |
1552 | year += 80; | |
1553 | tm.tm_year = year; | |
1554 | ||
1555 | long month = ddt & 0x1E00000; | |
1556 | month >>= 21; | |
1557 | month -= 1; | |
1558 | tm.tm_mon = month; | |
1559 | ||
1560 | long day = ddt & 0x1F0000; | |
1561 | day >>= 16; | |
1562 | tm.tm_mday = day; | |
1563 | ||
1564 | long hour = ddt & 0xF800; | |
1565 | hour >>= 11; | |
1566 | tm.tm_hour = hour; | |
1567 | ||
1568 | long minute = ddt & 0x7E0; | |
1569 | minute >>= 5; | |
1570 | tm.tm_min = minute; | |
1571 | ||
1572 | long second = ddt & 0x1F; | |
1573 | tm.tm_sec = second * 2; | |
1574 | ||
1575 | return Set(mktime(&tm)); | |
1576 | } | |
1577 | ||
1578 | unsigned long wxDateTime::GetAsDOS() const | |
1579 | { | |
1580 | unsigned long ddt; | |
1581 | time_t ticks = GetTicks(); | |
a452689b SN |
1582 | struct tm tmstruct; |
1583 | struct tm *tm = wxLocaltime_r(&ticks, &tmstruct); | |
2b5f62a0 VZ |
1584 | |
1585 | long year = tm->tm_year; | |
1586 | year -= 80; | |
1587 | year <<= 25; | |
1588 | ||
1589 | long month = tm->tm_mon; | |
1590 | month += 1; | |
1591 | month <<= 21; | |
1592 | ||
1593 | long day = tm->tm_mday; | |
1594 | day <<= 16; | |
1595 | ||
1596 | long hour = tm->tm_hour; | |
1597 | hour <<= 11; | |
1598 | ||
1599 | long minute = tm->tm_min; | |
1600 | minute <<= 5; | |
1601 | ||
1602 | long second = tm->tm_sec; | |
1603 | second /= 2; | |
1604 | ||
1605 | ddt = year | month | day | hour | minute | second; | |
1606 | return ddt; | |
1607 | } | |
1608 | ||
b76b015e VZ |
1609 | // ---------------------------------------------------------------------------- |
1610 | // time_t <-> broken down time conversions | |
1611 | // ---------------------------------------------------------------------------- | |
1612 | ||
299fcbfe | 1613 | wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const |
b76b015e VZ |
1614 | { |
1615 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1616 | ||
1617 | time_t time = GetTicks(); | |
1618 | if ( time != (time_t)-1 ) | |
1619 | { | |
1620 | // use C RTL functions | |
a452689b | 1621 | struct tm tmstruct; |
299fcbfe VZ |
1622 | tm *tm; |
1623 | if ( tz.GetOffset() == -GetTimeZone() ) | |
1624 | { | |
1625 | // we are working with local time | |
a452689b | 1626 | tm = wxLocaltime_r(&time, &tmstruct); |
c5a1681b VZ |
1627 | |
1628 | // should never happen | |
a452689b | 1629 | wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
1630 | } |
1631 | else | |
1632 | { | |
13111b2a | 1633 | time += (time_t)tz.GetOffset(); |
33ac7e6f | 1634 | #if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning |
13111b2a | 1635 | int time2 = (int) time; |
9d9b7755 | 1636 | if ( time2 >= 0 ) |
fb10f04c | 1637 | #else |
9d9b7755 | 1638 | if ( time >= 0 ) |
fb10f04c | 1639 | #endif |
c5a1681b | 1640 | { |
a452689b | 1641 | tm = wxGmtime_r(&time, &tmstruct); |
b76b015e | 1642 | |
c5a1681b | 1643 | // should never happen |
a452689b | 1644 | wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") ); |
c5a1681b VZ |
1645 | } |
1646 | else | |
1647 | { | |
1648 | tm = (struct tm *)NULL; | |
1649 | } | |
1650 | } | |
b76b015e | 1651 | |
c5a1681b VZ |
1652 | if ( tm ) |
1653 | { | |
f6bcfd97 BP |
1654 | // adjust the milliseconds |
1655 | Tm tm2(*tm, tz); | |
1656 | long timeOnly = (m_time % MILLISECONDS_PER_DAY).ToLong(); | |
1657 | tm2.msec = (wxDateTime_t)(timeOnly % 1000); | |
1658 | return tm2; | |
c5a1681b VZ |
1659 | } |
1660 | //else: use generic code below | |
b76b015e | 1661 | } |
e6ec579c | 1662 | |
c5a1681b VZ |
1663 | // remember the time and do the calculations with the date only - this |
1664 | // eliminates rounding errors of the floating point arithmetics | |
299fcbfe | 1665 | |
c5a1681b | 1666 | wxLongLong timeMidnight = m_time + tz.GetOffset() * 1000; |
1ef54dcf | 1667 | |
c5a1681b | 1668 | long timeOnly = (timeMidnight % MILLISECONDS_PER_DAY).ToLong(); |
1ef54dcf | 1669 | |
c5a1681b VZ |
1670 | // we want to always have positive time and timeMidnight to be really |
1671 | // the midnight before it | |
1672 | if ( timeOnly < 0 ) | |
1673 | { | |
1674 | timeOnly = MILLISECONDS_PER_DAY + timeOnly; | |
1675 | } | |
e6ec579c | 1676 | |
c5a1681b | 1677 | timeMidnight -= timeOnly; |
1ef54dcf | 1678 | |
c5a1681b VZ |
1679 | // calculate the Gregorian date from JDN for the midnight of our date: |
1680 | // this will yield day, month (in 1..12 range) and year | |
1ef54dcf | 1681 | |
c5a1681b VZ |
1682 | // actually, this is the JDN for the noon of the previous day |
1683 | long jdn = (timeMidnight / MILLISECONDS_PER_DAY).ToLong() + EPOCH_JDN; | |
1ef54dcf | 1684 | |
c5a1681b | 1685 | // CREDIT: code below is by Scott E. Lee (but bugs are mine) |
1ef54dcf | 1686 | |
c5a1681b | 1687 | wxASSERT_MSG( jdn > -2, _T("JDN out of range") ); |
1ef54dcf | 1688 | |
c5a1681b | 1689 | // calculate the century |
479cd5de VZ |
1690 | long temp = (jdn + JDN_OFFSET) * 4 - 1; |
1691 | long century = temp / DAYS_PER_400_YEARS; | |
1ef54dcf | 1692 | |
c5a1681b VZ |
1693 | // then the year and day of year (1 <= dayOfYear <= 366) |
1694 | temp = ((temp % DAYS_PER_400_YEARS) / 4) * 4 + 3; | |
479cd5de VZ |
1695 | long year = (century * 100) + (temp / DAYS_PER_4_YEARS); |
1696 | long dayOfYear = (temp % DAYS_PER_4_YEARS) / 4 + 1; | |
1ef54dcf | 1697 | |
c5a1681b VZ |
1698 | // and finally the month and day of the month |
1699 | temp = dayOfYear * 5 - 3; | |
479cd5de VZ |
1700 | long month = temp / DAYS_PER_5_MONTHS; |
1701 | long day = (temp % DAYS_PER_5_MONTHS) / 5 + 1; | |
c5a1681b VZ |
1702 | |
1703 | // month is counted from March - convert to normal | |
1704 | if ( month < 10 ) | |
1705 | { | |
1706 | month += 3; | |
1707 | } | |
1708 | else | |
1709 | { | |
1710 | year += 1; | |
1711 | month -= 9; | |
1712 | } | |
1ef54dcf | 1713 | |
c5a1681b VZ |
1714 | // year is offset by 4800 |
1715 | year -= 4800; | |
1ef54dcf | 1716 | |
c5a1681b VZ |
1717 | // check that the algorithm gave us something reasonable |
1718 | wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") ); | |
1719 | wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") ); | |
e6ec579c | 1720 | |
c5a1681b VZ |
1721 | // construct Tm from these values |
1722 | Tm tm; | |
1723 | tm.year = (int)year; | |
1724 | tm.mon = (Month)(month - 1); // algorithm yields 1 for January, not 0 | |
1725 | tm.mday = (wxDateTime_t)day; | |
479cd5de | 1726 | tm.msec = (wxDateTime_t)(timeOnly % 1000); |
c5a1681b VZ |
1727 | timeOnly -= tm.msec; |
1728 | timeOnly /= 1000; // now we have time in seconds | |
e6ec579c | 1729 | |
d26adb9d | 1730 | tm.sec = (wxDateTime_t)(timeOnly % SEC_PER_MIN); |
c5a1681b | 1731 | timeOnly -= tm.sec; |
d26adb9d | 1732 | timeOnly /= SEC_PER_MIN; // now we have time in minutes |
e6ec579c | 1733 | |
d26adb9d | 1734 | tm.min = (wxDateTime_t)(timeOnly % MIN_PER_HOUR); |
c5a1681b | 1735 | timeOnly -= tm.min; |
e6ec579c | 1736 | |
d26adb9d | 1737 | tm.hour = (wxDateTime_t)(timeOnly / MIN_PER_HOUR); |
b76b015e | 1738 | |
c5a1681b | 1739 | return tm; |
b76b015e VZ |
1740 | } |
1741 | ||
1742 | wxDateTime& wxDateTime::SetYear(int year) | |
1743 | { | |
1744 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1745 | ||
1746 | Tm tm(GetTm()); | |
1747 | tm.year = year; | |
1748 | Set(tm); | |
1749 | ||
1750 | return *this; | |
1751 | } | |
1752 | ||
1753 | wxDateTime& wxDateTime::SetMonth(Month month) | |
1754 | { | |
1755 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1756 | ||
1757 | Tm tm(GetTm()); | |
1758 | tm.mon = month; | |
1759 | Set(tm); | |
1760 | ||
1761 | return *this; | |
1762 | } | |
1763 | ||
1764 | wxDateTime& wxDateTime::SetDay(wxDateTime_t mday) | |
1765 | { | |
1766 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1767 | ||
1768 | Tm tm(GetTm()); | |
1769 | tm.mday = mday; | |
1770 | Set(tm); | |
1771 | ||
1772 | return *this; | |
1773 | } | |
1774 | ||
1775 | wxDateTime& wxDateTime::SetHour(wxDateTime_t hour) | |
1776 | { | |
1777 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1778 | ||
1779 | Tm tm(GetTm()); | |
1780 | tm.hour = hour; | |
1781 | Set(tm); | |
1782 | ||
1783 | return *this; | |
1784 | } | |
1785 | ||
1786 | wxDateTime& wxDateTime::SetMinute(wxDateTime_t min) | |
1787 | { | |
1788 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1789 | ||
1790 | Tm tm(GetTm()); | |
1791 | tm.min = min; | |
1792 | Set(tm); | |
1793 | ||
1794 | return *this; | |
1795 | } | |
1796 | ||
1797 | wxDateTime& wxDateTime::SetSecond(wxDateTime_t sec) | |
1798 | { | |
1799 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1800 | ||
1801 | Tm tm(GetTm()); | |
1802 | tm.sec = sec; | |
1803 | Set(tm); | |
0979c962 VZ |
1804 | |
1805 | return *this; | |
1806 | } | |
b76b015e VZ |
1807 | |
1808 | wxDateTime& wxDateTime::SetMillisecond(wxDateTime_t millisecond) | |
1809 | { | |
1810 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1811 | ||
1812 | // we don't need to use GetTm() for this one | |
1813 | m_time -= m_time % 1000l; | |
1814 | m_time += millisecond; | |
1815 | ||
1816 | return *this; | |
1817 | } | |
1818 | ||
1819 | // ---------------------------------------------------------------------------- | |
1820 | // wxDateTime arithmetics | |
1821 | // ---------------------------------------------------------------------------- | |
1822 | ||
1823 | wxDateTime& wxDateTime::Add(const wxDateSpan& diff) | |
1824 | { | |
1825 | Tm tm(GetTm()); | |
1826 | ||
1827 | tm.year += diff.GetYears(); | |
fcc3d7cb | 1828 | tm.AddMonths(diff.GetMonths()); |
4f6aed9c VZ |
1829 | |
1830 | // check that the resulting date is valid | |
1831 | if ( tm.mday > GetNumOfDaysInMonth(tm.year, tm.mon) ) | |
1832 | { | |
1833 | // We suppose that when adding one month to Jan 31 we want to get Feb | |
1834 | // 28 (or 29), i.e. adding a month to the last day of the month should | |
1835 | // give the last day of the next month which is quite logical. | |
1836 | // | |
1837 | // Unfortunately, there is no logic way to understand what should | |
1838 | // Jan 30 + 1 month be - Feb 28 too or Feb 27 (assuming non leap year)? | |
1839 | // We make it Feb 28 (last day too), but it is highly questionable. | |
1840 | tm.mday = GetNumOfDaysInMonth(tm.year, tm.mon); | |
1841 | } | |
1842 | ||
fcc3d7cb | 1843 | tm.AddDays(diff.GetTotalDays()); |
b76b015e VZ |
1844 | |
1845 | Set(tm); | |
1846 | ||
9d9b7755 VZ |
1847 | wxASSERT_MSG( IsSameTime(tm), |
1848 | _T("Add(wxDateSpan) shouldn't modify time") ); | |
1849 | ||
b76b015e VZ |
1850 | return *this; |
1851 | } | |
1852 | ||
2f02cb89 VZ |
1853 | // ---------------------------------------------------------------------------- |
1854 | // Weekday and monthday stuff | |
1855 | // ---------------------------------------------------------------------------- | |
1856 | ||
4c27e2fa VZ |
1857 | // convert Sun, Mon, ..., Sat into 6, 0, ..., 5 |
1858 | static inline int ConvertWeekDayToMondayBase(int wd) | |
1859 | { | |
1860 | return wd == wxDateTime::Sun ? 6 : wd - 1; | |
1861 | } | |
1862 | ||
1863 | /* static */ | |
1864 | wxDateTime | |
1865 | wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd) | |
4f6aed9c | 1866 | { |
2b5f62a0 VZ |
1867 | wxASSERT_MSG( numWeek > 0, |
1868 | _T("invalid week number: weeks are counted from 1") ); | |
1869 | ||
4c27e2fa VZ |
1870 | // Jan 4 always lies in the 1st week of the year |
1871 | wxDateTime dt(4, Jan, year); | |
1872 | dt.SetToWeekDayInSameWeek(wd); | |
1873 | dt += wxDateSpan::Weeks(numWeek - 1); | |
1874 | ||
1875 | return dt; | |
1876 | } | |
4f6aed9c | 1877 | |
ca3e85cf | 1878 | #if WXWIN_COMPATIBILITY_2_6 |
4c27e2fa VZ |
1879 | // use a separate function to avoid warnings about using deprecated |
1880 | // SetToTheWeek in GetWeek below | |
1881 | static wxDateTime | |
1882 | SetToTheWeek(int year, | |
1883 | wxDateTime::wxDateTime_t numWeek, | |
1884 | wxDateTime::WeekDay weekday, | |
1885 | wxDateTime::WeekFlags flags) | |
1886 | { | |
4f6aed9c | 1887 | // Jan 4 always lies in the 1st week of the year |
4c27e2fa VZ |
1888 | wxDateTime dt(4, wxDateTime::Jan, year); |
1889 | dt.SetToWeekDayInSameWeek(weekday, flags); | |
1890 | dt += wxDateSpan::Weeks(numWeek - 1); | |
4f6aed9c | 1891 | |
4c27e2fa VZ |
1892 | return dt; |
1893 | } | |
1894 | ||
1895 | bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, | |
1896 | WeekDay weekday, | |
1897 | WeekFlags flags) | |
1898 | { | |
1899 | int year = GetYear(); | |
1900 | *this = ::SetToTheWeek(year, numWeek, weekday, flags); | |
4f6aed9c VZ |
1901 | if ( GetYear() != year ) |
1902 | { | |
1903 | // oops... numWeek was too big | |
68379eaf | 1904 | return false; |
4f6aed9c VZ |
1905 | } |
1906 | ||
68379eaf | 1907 | return true; |
4f6aed9c VZ |
1908 | } |
1909 | ||
4c27e2fa VZ |
1910 | wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, |
1911 | WeekDay weekday, | |
1912 | WeekFlags flags) const | |
1913 | { | |
1914 | return ::SetToTheWeek(GetYear(), numWeek, weekday, flags); | |
1915 | } | |
ca3e85cf | 1916 | #endif // WXWIN_COMPATIBILITY_2_6 |
4c27e2fa | 1917 | |
2f02cb89 VZ |
1918 | wxDateTime& wxDateTime::SetToLastMonthDay(Month month, |
1919 | int year) | |
1920 | { | |
1921 | // take the current month/year if none specified | |
1a8557b1 VZ |
1922 | if ( year == Inv_Year ) |
1923 | year = GetYear(); | |
1924 | if ( month == Inv_Month ) | |
1925 | month = GetMonth(); | |
2f02cb89 | 1926 | |
fcc3d7cb | 1927 | return Set(GetNumOfDaysInMonth(year, month), month, year); |
2f02cb89 VZ |
1928 | } |
1929 | ||
2b5f62a0 | 1930 | wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags) |
cd0b1709 | 1931 | { |
384223b3 | 1932 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 | 1933 | |
af80bc92 VZ |
1934 | int wdayDst = weekday, |
1935 | wdayThis = GetWeekDay(); | |
1936 | if ( wdayDst == wdayThis ) | |
cd0b1709 VZ |
1937 | { |
1938 | // nothing to do | |
1939 | return *this; | |
1940 | } | |
2b5f62a0 VZ |
1941 | |
1942 | if ( flags == Default_First ) | |
1943 | { | |
1944 | flags = GetCountry() == USA ? Sunday_First : Monday_First; | |
1945 | } | |
1946 | ||
1947 | // the logic below based on comparing weekday and wdayThis works if Sun (0) | |
1948 | // is the first day in the week, but breaks down for Monday_First case so | |
1949 | // we adjust the week days in this case | |
af80bc92 | 1950 | if ( flags == Monday_First ) |
2b5f62a0 VZ |
1951 | { |
1952 | if ( wdayThis == Sun ) | |
1953 | wdayThis += 7; | |
af80bc92 VZ |
1954 | if ( wdayDst == Sun ) |
1955 | wdayDst += 7; | |
2b5f62a0 VZ |
1956 | } |
1957 | //else: Sunday_First, nothing to do | |
1958 | ||
1959 | // go forward or back in time to the day we want | |
af80bc92 | 1960 | if ( wdayDst < wdayThis ) |
cd0b1709 | 1961 | { |
af80bc92 | 1962 | return Subtract(wxDateSpan::Days(wdayThis - wdayDst)); |
cd0b1709 VZ |
1963 | } |
1964 | else // weekday > wdayThis | |
1965 | { | |
af80bc92 | 1966 | return Add(wxDateSpan::Days(wdayDst - wdayThis)); |
cd0b1709 VZ |
1967 | } |
1968 | } | |
1969 | ||
1970 | wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) | |
1971 | { | |
384223b3 | 1972 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 VZ |
1973 | |
1974 | int diff; | |
1975 | WeekDay wdayThis = GetWeekDay(); | |
1976 | if ( weekday == wdayThis ) | |
1977 | { | |
1978 | // nothing to do | |
1979 | return *this; | |
1980 | } | |
1981 | else if ( weekday < wdayThis ) | |
1982 | { | |
1983 | // need to advance a week | |
1984 | diff = 7 - (wdayThis - weekday); | |
1985 | } | |
1986 | else // weekday > wdayThis | |
1987 | { | |
1988 | diff = weekday - wdayThis; | |
1989 | } | |
1990 | ||
4f6aed9c | 1991 | return Add(wxDateSpan::Days(diff)); |
cd0b1709 VZ |
1992 | } |
1993 | ||
1994 | wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday) | |
1995 | { | |
384223b3 | 1996 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 VZ |
1997 | |
1998 | int diff; | |
1999 | WeekDay wdayThis = GetWeekDay(); | |
2000 | if ( weekday == wdayThis ) | |
2001 | { | |
2002 | // nothing to do | |
2003 | return *this; | |
2004 | } | |
2005 | else if ( weekday > wdayThis ) | |
2006 | { | |
2007 | // need to go to previous week | |
2008 | diff = 7 - (weekday - wdayThis); | |
2009 | } | |
2010 | else // weekday < wdayThis | |
2011 | { | |
2012 | diff = wdayThis - weekday; | |
2013 | } | |
2014 | ||
f6bcfd97 | 2015 | return Subtract(wxDateSpan::Days(diff)); |
cd0b1709 VZ |
2016 | } |
2017 | ||
2f02cb89 VZ |
2018 | bool wxDateTime::SetToWeekDay(WeekDay weekday, |
2019 | int n, | |
2020 | Month month, | |
2021 | int year) | |
2022 | { | |
68379eaf | 2023 | wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") ); |
2f02cb89 | 2024 | |
68379eaf | 2025 | // we don't check explicitly that -5 <= n <= 5 because we will return false |
2f02cb89 VZ |
2026 | // anyhow in such case - but may be should still give an assert for it? |
2027 | ||
2028 | // take the current month/year if none specified | |
2029 | ReplaceDefaultYearMonthWithCurrent(&year, &month); | |
2030 | ||
2031 | wxDateTime dt; | |
2032 | ||
2033 | // TODO this probably could be optimised somehow... | |
2034 | ||
2035 | if ( n > 0 ) | |
2036 | { | |
2037 | // get the first day of the month | |
2038 | dt.Set(1, month, year); | |
2039 | ||
2040 | // get its wday | |
2041 | WeekDay wdayFirst = dt.GetWeekDay(); | |
2042 | ||
2043 | // go to the first weekday of the month | |
2044 | int diff = weekday - wdayFirst; | |
2045 | if ( diff < 0 ) | |
2046 | diff += 7; | |
2047 | ||
2048 | // add advance n-1 weeks more | |
2049 | diff += 7*(n - 1); | |
2050 | ||
239446b4 | 2051 | dt += wxDateSpan::Days(diff); |
2f02cb89 | 2052 | } |
239446b4 | 2053 | else // count from the end of the month |
2f02cb89 VZ |
2054 | { |
2055 | // get the last day of the month | |
2056 | dt.SetToLastMonthDay(month, year); | |
2057 | ||
2058 | // get its wday | |
2059 | WeekDay wdayLast = dt.GetWeekDay(); | |
2060 | ||
2061 | // go to the last weekday of the month | |
2062 | int diff = wdayLast - weekday; | |
2063 | if ( diff < 0 ) | |
2064 | diff += 7; | |
2065 | ||
2066 | // and rewind n-1 weeks from there | |
239446b4 | 2067 | diff += 7*(-n - 1); |
2f02cb89 VZ |
2068 | |
2069 | dt -= wxDateSpan::Days(diff); | |
2070 | } | |
2071 | ||
2072 | // check that it is still in the same month | |
2073 | if ( dt.GetMonth() == month ) | |
2074 | { | |
2075 | *this = dt; | |
2076 | ||
68379eaf | 2077 | return true; |
2f02cb89 VZ |
2078 | } |
2079 | else | |
2080 | { | |
2081 | // no such day in this month | |
68379eaf | 2082 | return false; |
2f02cb89 VZ |
2083 | } |
2084 | } | |
2085 | ||
1c5d27e2 VZ |
2086 | static inline |
2087 | wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm) | |
2088 | { | |
907173e5 | 2089 | return (wxDateTime::wxDateTime_t)(gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday); |
1c5d27e2 VZ |
2090 | } |
2091 | ||
239446b4 VZ |
2092 | wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const |
2093 | { | |
1c5d27e2 VZ |
2094 | return GetDayOfYearFromTm(GetTm(tz)); |
2095 | } | |
239446b4 | 2096 | |
1c5d27e2 VZ |
2097 | wxDateTime::wxDateTime_t |
2098 | wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const | |
239446b4 | 2099 | { |
9d9b7755 VZ |
2100 | if ( flags == Default_First ) |
2101 | { | |
2102 | flags = GetCountry() == USA ? Sunday_First : Monday_First; | |
2103 | } | |
239446b4 | 2104 | |
1c5d27e2 VZ |
2105 | Tm tm(GetTm(tz)); |
2106 | wxDateTime_t nDayInYear = GetDayOfYearFromTm(tm); | |
239446b4 | 2107 | |
1c5d27e2 VZ |
2108 | int wdTarget = GetWeekDay(tz); |
2109 | int wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay(); | |
2110 | int week; | |
9d9b7755 VZ |
2111 | if ( flags == Sunday_First ) |
2112 | { | |
1c5d27e2 VZ |
2113 | // FIXME: First week is not calculated correctly. |
2114 | week = (nDayInYear - wdTarget + 7) / 7; | |
2115 | if ( wdYearStart == Wed || wdYearStart == Thu ) | |
2116 | week++; | |
9d9b7755 | 2117 | } |
1c5d27e2 | 2118 | else // week starts with monday |
9d9b7755 | 2119 | { |
1c5d27e2 VZ |
2120 | // adjust the weekdays to non-US style. |
2121 | wdYearStart = ConvertWeekDayToMondayBase(wdYearStart); | |
2122 | wdTarget = ConvertWeekDayToMondayBase(wdTarget); | |
239446b4 | 2123 | |
1c5d27e2 VZ |
2124 | // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html: |
2125 | // | |
2126 | // Week 01 of a year is per definition the first week that has the | |
2127 | // Thursday in this year, which is equivalent to the week that | |
2128 | // contains the fourth day of January. In other words, the first | |
2129 | // week of a new year is the week that has the majority of its | |
2130 | // days in the new year. Week 01 might also contain days from the | |
2131 | // previous year and the week before week 01 of a year is the last | |
2132 | // week (52 or 53) of the previous year even if it contains days | |
2133 | // from the new year. A week starts with Monday (day 1) and ends | |
2134 | // with Sunday (day 7). | |
2135 | // | |
2136 | ||
2137 | // if Jan 1 is Thursday or less, it is in the first week of this year | |
2138 | if ( wdYearStart < 4 ) | |
2139 | { | |
2140 | // count the number of entire weeks between Jan 1 and this date | |
2141 | week = (nDayInYear + wdYearStart + 6 - wdTarget)/7; | |
2142 | ||
2143 | // be careful to check for overflow in the next year | |
2144 | if ( week == 53 && tm.mday - wdTarget > 28 ) | |
2145 | week = 1; | |
2146 | } | |
2147 | else // Jan 1 is in the last week of the previous year | |
2148 | { | |
2149 | // check if we happen to be at the last week of previous year: | |
2150 | if ( tm.mon == Jan && tm.mday < 8 - wdYearStart ) | |
2151 | week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear(); | |
2152 | else | |
2153 | week = (nDayInYear + wdYearStart - 1 - wdTarget)/7; | |
2154 | } | |
239446b4 VZ |
2155 | } |
2156 | ||
907173e5 | 2157 | return (wxDateTime::wxDateTime_t)week; |
68ee7c47 VZ |
2158 | } |
2159 | ||
9d9b7755 VZ |
2160 | wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, |
2161 | const TimeZone& tz) const | |
68ee7c47 | 2162 | { |
9d9b7755 VZ |
2163 | Tm tm = GetTm(tz); |
2164 | wxDateTime dtMonthStart = wxDateTime(1, tm.mon, tm.year); | |
6dc6fda6 | 2165 | int nWeek = GetWeekOfYear(flags) - dtMonthStart.GetWeekOfYear(flags) + 1; |
9d9b7755 | 2166 | if ( nWeek < 0 ) |
68ee7c47 | 2167 | { |
9d9b7755 VZ |
2168 | // this may happen for January when Jan, 1 is the last week of the |
2169 | // previous year | |
2170 | nWeek += IsLeapYear(tm.year - 1) ? 53 : 52; | |
68ee7c47 | 2171 | } |
68ee7c47 | 2172 | |
6dc6fda6 | 2173 | return (wxDateTime::wxDateTime_t)nWeek; |
239446b4 VZ |
2174 | } |
2175 | ||
f0f951fa VZ |
2176 | wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) |
2177 | { | |
2178 | int year = GetYear(); | |
384223b3 VZ |
2179 | wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)), |
2180 | _T("invalid year day") ); | |
f0f951fa VZ |
2181 | |
2182 | bool isLeap = IsLeapYear(year); | |
2183 | for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) ) | |
2184 | { | |
2185 | // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we | |
2186 | // don't need it neither - because of the CHECK above we know that | |
2187 | // yday lies in December then | |
f49d731f | 2188 | if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) ) |
f0f951fa | 2189 | { |
42841dfc | 2190 | Set((wxDateTime::wxDateTime_t)(yday - gs_cumulatedDays[isLeap][mon]), mon, year); |
f0f951fa VZ |
2191 | |
2192 | break; | |
2193 | } | |
2194 | } | |
2195 | ||
2196 | return *this; | |
2197 | } | |
2198 | ||
e6ec579c VZ |
2199 | // ---------------------------------------------------------------------------- |
2200 | // Julian day number conversion and related stuff | |
2201 | // ---------------------------------------------------------------------------- | |
2202 | ||
2203 | double wxDateTime::GetJulianDayNumber() const | |
2204 | { | |
d26adb9d | 2205 | return m_time.ToDouble() / MILLISECONDS_PER_DAY + EPOCH_JDN + 0.5; |
e6ec579c VZ |
2206 | } |
2207 | ||
2208 | double wxDateTime::GetRataDie() const | |
2209 | { | |
2210 | // March 1 of the year 0 is Rata Die day -306 and JDN 1721119.5 | |
2211 | return GetJulianDayNumber() - 1721119.5 - 306; | |
2212 | } | |
2213 | ||
fcc3d7cb | 2214 | // ---------------------------------------------------------------------------- |
299fcbfe | 2215 | // timezone and DST stuff |
fcc3d7cb VZ |
2216 | // ---------------------------------------------------------------------------- |
2217 | ||
299fcbfe | 2218 | int wxDateTime::IsDST(wxDateTime::Country country) const |
fcc3d7cb | 2219 | { |
299fcbfe VZ |
2220 | wxCHECK_MSG( country == Country_Default, -1, |
2221 | _T("country support not implemented") ); | |
2222 | ||
2223 | // use the C RTL for the dates in the standard range | |
2224 | time_t timet = GetTicks(); | |
2225 | if ( timet != (time_t)-1 ) | |
2226 | { | |
a452689b SN |
2227 | struct tm tmstruct; |
2228 | tm *tm = wxLocaltime_r(&timet, &tmstruct); | |
299fcbfe | 2229 | |
a452689b | 2230 | wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
2231 | |
2232 | return tm->tm_isdst; | |
2233 | } | |
2234 | else | |
2235 | { | |
239446b4 VZ |
2236 | int year = GetYear(); |
2237 | ||
2238 | if ( !IsDSTApplicable(year, country) ) | |
2239 | { | |
2240 | // no DST time in this year in this country | |
2241 | return -1; | |
2242 | } | |
299fcbfe | 2243 | |
239446b4 | 2244 | return IsBetween(GetBeginDST(year, country), GetEndDST(year, country)); |
299fcbfe | 2245 | } |
fcc3d7cb VZ |
2246 | } |
2247 | ||
41acf5c0 | 2248 | wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) |
fcc3d7cb | 2249 | { |
479cd5de | 2250 | long secDiff = GetTimeZone() + tz.GetOffset(); |
fcc3d7cb | 2251 | |
41acf5c0 VZ |
2252 | // we need to know whether DST is or not in effect for this date unless |
2253 | // the test disabled by the caller | |
2254 | if ( !noDST && (IsDST() == 1) ) | |
299fcbfe VZ |
2255 | { |
2256 | // FIXME we assume that the DST is always shifted by 1 hour | |
2257 | secDiff -= 3600; | |
2258 | } | |
2259 | ||
d26adb9d VZ |
2260 | return Add(wxTimeSpan::Seconds(secDiff)); |
2261 | } | |
2262 | ||
2263 | wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) | |
2264 | { | |
2265 | long secDiff = GetTimeZone() + tz.GetOffset(); | |
2266 | ||
2267 | // we need to know whether DST is or not in effect for this date unless | |
2268 | // the test disabled by the caller | |
2269 | if ( !noDST && (IsDST() == 1) ) | |
2270 | { | |
2271 | // FIXME we assume that the DST is always shifted by 1 hour | |
2272 | secDiff -= 3600; | |
2273 | } | |
2274 | ||
f6bcfd97 | 2275 | return Subtract(wxTimeSpan::Seconds(secDiff)); |
fcc3d7cb VZ |
2276 | } |
2277 | ||
b76b015e VZ |
2278 | // ---------------------------------------------------------------------------- |
2279 | // wxDateTime to/from text representations | |
2280 | // ---------------------------------------------------------------------------- | |
2281 | ||
12e82477 | 2282 | wxString wxDateTime::Format(const wxString& format, const TimeZone& tz) const |
b76b015e | 2283 | { |
12e82477 VS |
2284 | wxCHECK_MSG( !format.empty(), wxEmptyString, |
2285 | _T("NULL format in wxDateTime::Format") ); | |
e6ec579c | 2286 | |
f6bcfd97 BP |
2287 | // we have to use our own implementation if the date is out of range of |
2288 | // strftime() or if we use non standard specificators | |
bb7afa49 | 2289 | #ifdef HAVE_STRFTIME |
b5085b02 WS |
2290 | time_t time = GetTicks(); |
2291 | ||
f6bcfd97 | 2292 | if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) ) |
b76b015e VZ |
2293 | { |
2294 | // use strftime() | |
a452689b SN |
2295 | struct tm tmstruct; |
2296 | struct tm *tm; | |
299fcbfe VZ |
2297 | if ( tz.GetOffset() == -GetTimeZone() ) |
2298 | { | |
2299 | // we are working with local time | |
a452689b | 2300 | tm = wxLocaltime_r(&time, &tmstruct); |
c5a1681b VZ |
2301 | |
2302 | // should never happen | |
a452689b | 2303 | wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
2304 | } |
2305 | else | |
2306 | { | |
479cd5de | 2307 | time += (int)tz.GetOffset(); |
299fcbfe | 2308 | |
33ac7e6f | 2309 | #if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning |
13111b2a | 2310 | int time2 = (int) time; |
9c2882d9 | 2311 | if ( time2 >= 0 ) |
fb10f04c | 2312 | #else |
9c2882d9 | 2313 | if ( time >= 0 ) |
fb10f04c | 2314 | #endif |
c5a1681b | 2315 | { |
a452689b | 2316 | tm = wxGmtime_r(&time, &tmstruct); |
b76b015e | 2317 | |
c5a1681b | 2318 | // should never happen |
a452689b | 2319 | wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") ); |
c5a1681b VZ |
2320 | } |
2321 | else | |
2322 | { | |
2323 | tm = (struct tm *)NULL; | |
2324 | } | |
2325 | } | |
bb7afa49 | 2326 | |
c5a1681b | 2327 | if ( tm ) |
e6ec579c | 2328 | { |
c5a1681b | 2329 | return CallStrftime(format, tm); |
e6ec579c | 2330 | } |
c5a1681b | 2331 | } |
bb7afa49 VZ |
2332 | //else: use generic code below |
2333 | #endif // HAVE_STRFTIME | |
c5a1681b | 2334 | |
68ee7c47 | 2335 | // we only parse ANSI C format specifications here, no POSIX 2 |
f6bcfd97 BP |
2336 | // complications, no GNU extensions but we do add support for a "%l" format |
2337 | // specifier allowing to get the number of milliseconds | |
68ee7c47 | 2338 | Tm tm = GetTm(tz); |
e6ec579c | 2339 | |
68ee7c47 VZ |
2340 | // used for calls to strftime() when we only deal with time |
2341 | struct tm tmTimeOnly; | |
2342 | tmTimeOnly.tm_hour = tm.hour; | |
2343 | tmTimeOnly.tm_min = tm.min; | |
2344 | tmTimeOnly.tm_sec = tm.sec; | |
2345 | tmTimeOnly.tm_wday = 0; | |
2346 | tmTimeOnly.tm_yday = 0; | |
2347 | tmTimeOnly.tm_mday = 1; // any date will do | |
2348 | tmTimeOnly.tm_mon = 0; | |
2349 | tmTimeOnly.tm_year = 76; | |
2350 | tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves | |
e6ec579c | 2351 | |
77c3e48a | 2352 | wxString tmp, res, fmt; |
12e82477 | 2353 | for ( wxString::const_iterator p = format.begin(); p != format.end(); ++p ) |
68ee7c47 VZ |
2354 | { |
2355 | if ( *p != _T('%') ) | |
2356 | { | |
2357 | // copy as is | |
2358 | res += *p; | |
b76b015e | 2359 | |
68ee7c47 VZ |
2360 | continue; |
2361 | } | |
e6ec579c | 2362 | |
77c3e48a | 2363 | // set the default format |
12e82477 | 2364 | switch ( (*++p).GetValue() ) |
77c3e48a VZ |
2365 | { |
2366 | case _T('Y'): // year has 4 digits | |
2367 | fmt = _T("%04d"); | |
2368 | break; | |
2369 | ||
2370 | case _T('j'): // day of year has 3 digits | |
f6bcfd97 | 2371 | case _T('l'): // milliseconds have 3 digits |
77c3e48a VZ |
2372 | fmt = _T("%03d"); |
2373 | break; | |
2374 | ||
59d04dff VZ |
2375 | case _T('w'): // week day as number has only one |
2376 | fmt = _T("%d"); | |
2377 | break; | |
2378 | ||
77c3e48a VZ |
2379 | default: |
2380 | // it's either another valid format specifier in which case | |
2381 | // the format is "%02d" (for all the rest) or we have the | |
2382 | // field width preceding the format in which case it will | |
2383 | // override the default format anyhow | |
2384 | fmt = _T("%02d"); | |
2385 | } | |
2386 | ||
68379eaf | 2387 | bool restart = true; |
fc3398f8 | 2388 | while ( restart ) |
68ee7c47 | 2389 | { |
68379eaf | 2390 | restart = false; |
68ee7c47 | 2391 | |
fc3398f8 | 2392 | // start of the format specification |
12e82477 | 2393 | switch ( (*p).GetValue() ) |
fc3398f8 VZ |
2394 | { |
2395 | case _T('a'): // a weekday name | |
2396 | case _T('A'): | |
68379eaf | 2397 | // second parameter should be true for abbreviated names |
fc3398f8 VZ |
2398 | res += GetWeekDayName(tm.GetWeekDay(), |
2399 | *p == _T('a') ? Name_Abbr : Name_Full); | |
2400 | break; | |
68ee7c47 | 2401 | |
fc3398f8 VZ |
2402 | case _T('b'): // a month name |
2403 | case _T('B'): | |
2404 | res += GetMonthName(tm.mon, | |
2405 | *p == _T('b') ? Name_Abbr : Name_Full); | |
2406 | break; | |
2407 | ||
2408 | case _T('c'): // locale default date and time representation | |
2409 | case _T('x'): // locale default date representation | |
bb7afa49 | 2410 | #ifdef HAVE_STRFTIME |
fc3398f8 VZ |
2411 | // |
2412 | // the problem: there is no way to know what do these format | |
2413 | // specifications correspond to for the current locale. | |
2414 | // | |
2415 | // the solution: use a hack and still use strftime(): first | |
2416 | // find the YEAR which is a year in the strftime() range (1970 | |
2417 | // - 2038) whose Jan 1 falls on the same week day as the Jan 1 | |
2418 | // of the real year. Then make a copy of the format and | |
3103e8a9 | 2419 | // replace all occurrences of YEAR in it with some unique |
fc3398f8 VZ |
2420 | // string not appearing anywhere else in it, then use |
2421 | // strftime() to format the date in year YEAR and then replace | |
2422 | // YEAR back by the real year and the unique replacement | |
3103e8a9 JS |
2423 | // string back with YEAR. Notice that "all occurrences of YEAR" |
2424 | // means all occurrences of 4 digit as well as 2 digit form! | |
fc3398f8 VZ |
2425 | // |
2426 | // the bugs: we assume that neither of %c nor %x contains any | |
2427 | // fields which may change between the YEAR and real year. For | |
2428 | // example, the week number (%U, %W) and the day number (%j) | |
2429 | // will change if one of these years is leap and the other one | |
2430 | // is not! | |
68ee7c47 | 2431 | { |
fc3398f8 VZ |
2432 | // find the YEAR: normally, for any year X, Jan 1 or the |
2433 | // year X + 28 is the same weekday as Jan 1 of X (because | |
2434 | // the weekday advances by 1 for each normal X and by 2 | |
2435 | // for each leap X, hence by 5 every 4 years or by 35 | |
2436 | // which is 0 mod 7 every 28 years) but this rule breaks | |
2437 | // down if there are years between X and Y which are | |
2438 | // divisible by 4 but not leap (i.e. divisible by 100 but | |
2439 | // not 400), hence the correction. | |
2440 | ||
2441 | int yearReal = GetYear(tz); | |
2442 | int mod28 = yearReal % 28; | |
2443 | ||
2444 | // be careful to not go too far - we risk to leave the | |
2445 | // supported range | |
2446 | int year; | |
2447 | if ( mod28 < 10 ) | |
2448 | { | |
2449 | year = 1988 + mod28; // 1988 == 0 (mod 28) | |
2450 | } | |
2451 | else | |
2452 | { | |
2453 | year = 1970 + mod28 - 10; // 1970 == 10 (mod 28) | |
2454 | } | |
e6ec579c | 2455 | |
fc3398f8 VZ |
2456 | int nCentury = year / 100, |
2457 | nCenturyReal = yearReal / 100; | |
c5a1681b | 2458 | |
fc3398f8 VZ |
2459 | // need to adjust for the years divisble by 400 which are |
2460 | // not leap but are counted like leap ones if we just take | |
2461 | // the number of centuries in between for nLostWeekDays | |
2462 | int nLostWeekDays = (nCentury - nCenturyReal) - | |
2463 | (nCentury / 4 - nCenturyReal / 4); | |
c5a1681b | 2464 | |
fc3398f8 VZ |
2465 | // we have to gain back the "lost" weekdays: note that the |
2466 | // effect of this loop is to not do anything to | |
2467 | // nLostWeekDays (which we won't use any more), but to | |
2468 | // (indirectly) set the year correctly | |
2469 | while ( (nLostWeekDays % 7) != 0 ) | |
2470 | { | |
2471 | nLostWeekDays += year++ % 4 ? 1 : 2; | |
2472 | } | |
88a7a4e1 WS |
2473 | |
2474 | // Keep year below 2000 so the 2digit year number | |
2475 | // can never match the month or day of the month | |
2476 | if (year>=2000) year-=28; | |
fc3398f8 VZ |
2477 | // at any rate, we couldn't go further than 1988 + 9 + 28! |
2478 | wxASSERT_MSG( year < 2030, | |
2479 | _T("logic error in wxDateTime::Format") ); | |
c5a1681b | 2480 | |
88a7a4e1 | 2481 | wxString strYear, strYear2; |
fc3398f8 VZ |
2482 | strYear.Printf(_T("%d"), year); |
2483 | strYear2.Printf(_T("%d"), year % 100); | |
88a7a4e1 | 2484 | |
1d7bc913 | 2485 | // find four strings not occurring in format (this is surely |
3103e8a9 | 2486 | // not the optimal way of doing it... improvements welcome!) |
17a1ebd1 | 2487 | wxString fmt2 = format; |
88a7a4e1 WS |
2488 | wxString replacement,replacement2,replacement3,replacement4; |
2489 | for (int rnr=1; rnr<5 ; rnr++) | |
2490 | { | |
2491 | wxString r = (wxChar)-rnr; | |
2492 | while ( fmt2.Find(r) != wxNOT_FOUND ) | |
2493 | { | |
2494 | r << (wxChar)-rnr; | |
2495 | } | |
2496 | ||
2497 | switch (rnr) | |
2498 | { | |
2499 | case 1: replacement=r; break; | |
2500 | case 2: replacement2=r; break; | |
2501 | case 3: replacement3=r; break; | |
2502 | case 4: replacement4=r; break; | |
2503 | } | |
2504 | } | |
3103e8a9 | 2505 | // replace all occurrences of year with it |
17a1ebd1 | 2506 | bool wasReplaced = fmt2.Replace(strYear, replacement) > 0; |
1d7bc913 | 2507 | // evaluation order ensures we always attempt the replacement. |
9e477492 | 2508 | wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) || wasReplaced; |
fc3398f8 VZ |
2509 | |
2510 | // use strftime() to format the same date but in supported | |
2511 | // year | |
2512 | // | |
2513 | // NB: we assume that strftime() doesn't check for the | |
2514 | // date validity and will happily format the date | |
2515 | // corresponding to Feb 29 of a non leap year (which | |
2516 | // may happen if yearReal was leap and year is not) | |
2517 | struct tm tmAdjusted; | |
2518 | InitTm(tmAdjusted); | |
2519 | tmAdjusted.tm_hour = tm.hour; | |
2520 | tmAdjusted.tm_min = tm.min; | |
2521 | tmAdjusted.tm_sec = tm.sec; | |
2522 | tmAdjusted.tm_wday = tm.GetWeekDay(); | |
2523 | tmAdjusted.tm_yday = GetDayOfYear(); | |
2524 | tmAdjusted.tm_mday = tm.mday; | |
2525 | tmAdjusted.tm_mon = tm.mon; | |
2526 | tmAdjusted.tm_year = year - 1900; | |
2527 | tmAdjusted.tm_isdst = 0; // no DST, already adjusted | |
2528 | wxString str = CallStrftime(*p == _T('c') ? _T("%c") | |
2529 | : _T("%x"), | |
2530 | &tmAdjusted); | |
2531 | ||
3103e8a9 | 2532 | // now replace the occurrence of 1999 with the real year |
88a7a4e1 WS |
2533 | // we do this in two stages to stop the 2 digit year |
2534 | // matching any substring of the 4 digit year. | |
2535 | // Any day,month hours and minutes components should be safe due | |
2536 | // to ensuring the range of the years. | |
fc3398f8 VZ |
2537 | wxString strYearReal, strYearReal2; |
2538 | strYearReal.Printf(_T("%04d"), yearReal); | |
2539 | strYearReal2.Printf(_T("%02d"), yearReal % 100); | |
1d7bc913 RG |
2540 | str.Replace(strYear, replacement3); |
2541 | str.Replace(strYear2,replacement4); | |
2542 | str.Replace(replacement3, strYearReal); | |
2543 | str.Replace(replacement4, strYearReal2); | |
fc3398f8 | 2544 | |
3103e8a9 | 2545 | // and replace back all occurrences of replacement string |
fc3398f8 VZ |
2546 | if ( wasReplaced ) |
2547 | { | |
2548 | str.Replace(replacement2, strYear2); | |
2549 | str.Replace(replacement, strYear); | |
2550 | } | |
2551 | ||
2552 | res += str; | |
68ee7c47 | 2553 | } |
bb7afa49 VZ |
2554 | #else // !HAVE_STRFTIME |
2555 | // Use "%m/%d/%y %H:%M:%S" format instead | |
ba9bbf13 WS |
2556 | res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"), |
2557 | tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec); | |
bb7afa49 | 2558 | #endif // HAVE_STRFTIME/!HAVE_STRFTIME |
fc3398f8 | 2559 | break; |
c5a1681b | 2560 | |
fc3398f8 VZ |
2561 | case _T('d'): // day of a month (01-31) |
2562 | res += wxString::Format(fmt, tm.mday); | |
2563 | break; | |
68ee7c47 | 2564 | |
fc3398f8 VZ |
2565 | case _T('H'): // hour in 24h format (00-23) |
2566 | res += wxString::Format(fmt, tm.hour); | |
2567 | break; | |
2568 | ||
2569 | case _T('I'): // hour in 12h format (01-12) | |
68ee7c47 | 2570 | { |
fc3398f8 VZ |
2571 | // 24h -> 12h, 0h -> 12h too |
2572 | int hour12 = tm.hour > 12 ? tm.hour - 12 | |
2573 | : tm.hour ? tm.hour : 12; | |
2574 | res += wxString::Format(fmt, hour12); | |
68ee7c47 | 2575 | } |
fc3398f8 | 2576 | break; |
c5a1681b | 2577 | |
fc3398f8 VZ |
2578 | case _T('j'): // day of the year |
2579 | res += wxString::Format(fmt, GetDayOfYear(tz)); | |
2580 | break; | |
68ee7c47 | 2581 | |
f6bcfd97 BP |
2582 | case _T('l'): // milliseconds (NOT STANDARD) |
2583 | res += wxString::Format(fmt, GetMillisecond(tz)); | |
2584 | break; | |
2585 | ||
fc3398f8 VZ |
2586 | case _T('m'): // month as a number (01-12) |
2587 | res += wxString::Format(fmt, tm.mon + 1); | |
2588 | break; | |
68ee7c47 | 2589 | |
fc3398f8 VZ |
2590 | case _T('M'): // minute as a decimal number (00-59) |
2591 | res += wxString::Format(fmt, tm.min); | |
2592 | break; | |
68ee7c47 | 2593 | |
fc3398f8 | 2594 | case _T('p'): // AM or PM string |
bb7afa49 | 2595 | #ifdef HAVE_STRFTIME |
fc3398f8 | 2596 | res += CallStrftime(_T("%p"), &tmTimeOnly); |
bb7afa49 | 2597 | #else // !HAVE_STRFTIME |
ba9bbf13 | 2598 | res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am"); |
bb7afa49 | 2599 | #endif // HAVE_STRFTIME/!HAVE_STRFTIME |
fc3398f8 | 2600 | break; |
68ee7c47 | 2601 | |
fc3398f8 VZ |
2602 | case _T('S'): // second as a decimal number (00-61) |
2603 | res += wxString::Format(fmt, tm.sec); | |
2604 | break; | |
68ee7c47 | 2605 | |
fc3398f8 VZ |
2606 | case _T('U'): // week number in the year (Sunday 1st week day) |
2607 | res += wxString::Format(fmt, GetWeekOfYear(Sunday_First, tz)); | |
2608 | break; | |
68ee7c47 | 2609 | |
fc3398f8 VZ |
2610 | case _T('W'): // week number in the year (Monday 1st week day) |
2611 | res += wxString::Format(fmt, GetWeekOfYear(Monday_First, tz)); | |
2612 | break; | |
68ee7c47 | 2613 | |
fc3398f8 VZ |
2614 | case _T('w'): // weekday as a number (0-6), Sunday = 0 |
2615 | res += wxString::Format(fmt, tm.GetWeekDay()); | |
2616 | break; | |
68ee7c47 | 2617 | |
fc3398f8 | 2618 | // case _T('x'): -- handled with "%c" |
68ee7c47 | 2619 | |
fc3398f8 VZ |
2620 | case _T('X'): // locale default time representation |
2621 | // just use strftime() to format the time for us | |
bb7afa49 | 2622 | #ifdef HAVE_STRFTIME |
fc3398f8 | 2623 | res += CallStrftime(_T("%X"), &tmTimeOnly); |
bb7afa49 | 2624 | #else // !HAVE_STRFTIME |
ba9bbf13 | 2625 | res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec); |
bb7afa49 | 2626 | #endif // HAVE_STRFTIME/!HAVE_STRFTIME |
fc3398f8 | 2627 | break; |
68ee7c47 | 2628 | |
fc3398f8 VZ |
2629 | case _T('y'): // year without century (00-99) |
2630 | res += wxString::Format(fmt, tm.year % 100); | |
2631 | break; | |
68ee7c47 | 2632 | |
fc3398f8 VZ |
2633 | case _T('Y'): // year with century |
2634 | res += wxString::Format(fmt, tm.year); | |
2635 | break; | |
68ee7c47 | 2636 | |
fc3398f8 | 2637 | case _T('Z'): // timezone name |
bb7afa49 | 2638 | #ifdef HAVE_STRFTIME |
fc3398f8 | 2639 | res += CallStrftime(_T("%Z"), &tmTimeOnly); |
77b88df2 | 2640 | #endif |
fc3398f8 | 2641 | break; |
68ee7c47 | 2642 | |
fc3398f8 VZ |
2643 | default: |
2644 | // is it the format width? | |
2645 | fmt.Empty(); | |
2646 | while ( *p == _T('-') || *p == _T('+') || | |
2647 | *p == _T(' ') || wxIsdigit(*p) ) | |
2648 | { | |
2649 | fmt += *p; | |
2650 | } | |
68ee7c47 | 2651 | |
bb8a8478 | 2652 | if ( !fmt.empty() ) |
fc3398f8 VZ |
2653 | { |
2654 | // we've only got the flags and width so far in fmt | |
2655 | fmt.Prepend(_T('%')); | |
2656 | fmt.Append(_T('d')); | |
68ee7c47 | 2657 | |
68379eaf | 2658 | restart = true; |
68ee7c47 | 2659 | |
fc3398f8 VZ |
2660 | break; |
2661 | } | |
68ee7c47 | 2662 | |
fc3398f8 VZ |
2663 | // no, it wasn't the width |
2664 | wxFAIL_MSG(_T("unknown format specificator")); | |
68ee7c47 | 2665 | |
fc3398f8 | 2666 | // fall through and just copy it nevertheless |
68ee7c47 | 2667 | |
fc3398f8 VZ |
2668 | case _T('%'): // a percent sign |
2669 | res += *p; | |
2670 | break; | |
2671 | ||
2672 | case 0: // the end of string | |
2673 | wxFAIL_MSG(_T("missing format at the end of string")); | |
2674 | ||
2675 | // just put the '%' which was the last char in format | |
2676 | res += _T('%'); | |
2677 | break; | |
2678 | } | |
68ee7c47 | 2679 | } |
c5a1681b VZ |
2680 | } |
2681 | ||
68ee7c47 | 2682 | return res; |
b76b015e | 2683 | } |
fcc3d7cb | 2684 | |
cd0b1709 VZ |
2685 | // this function parses a string in (strict) RFC 822 format: see the section 5 |
2686 | // of the RFC for the detailed description, but briefly it's something of the | |
2687 | // form "Sat, 18 Dec 1999 00:48:30 +0100" | |
2688 | // | |
2689 | // this function is "strict" by design - it must reject anything except true | |
2690 | // RFC822 time specs. | |
2691 | // | |
2692 | // TODO a great candidate for using reg exps | |
2693 | const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) | |
2694 | { | |
2695 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
2696 | ||
2697 | const wxChar *p = date; | |
2698 | const wxChar *comma = wxStrchr(p, _T(',')); | |
2699 | if ( comma ) | |
2700 | { | |
2701 | // the part before comma is the weekday | |
2702 | ||
2703 | // skip it for now - we don't use but might check that it really | |
2704 | // corresponds to the specfied date | |
2705 | p = comma + 1; | |
2706 | ||
2707 | if ( *p != _T(' ') ) | |
2708 | { | |
2709 | wxLogDebug(_T("no space after weekday in RFC822 time spec")); | |
2710 | ||
2711 | return (wxChar *)NULL; | |
2712 | } | |
2713 | ||
2714 | p++; // skip space | |
2715 | } | |
2716 | ||
2717 | // the following 1 or 2 digits are the day number | |
2718 | if ( !wxIsdigit(*p) ) | |
2719 | { | |
2720 | wxLogDebug(_T("day number expected in RFC822 time spec, none found")); | |
2721 | ||
2722 | return (wxChar *)NULL; | |
2723 | } | |
2724 | ||
907173e5 | 2725 | wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2726 | if ( wxIsdigit(*p) ) |
2727 | { | |
2728 | day *= 10; | |
907173e5 | 2729 | day = (wxDateTime_t)(day + (*p++ - _T('0'))); |
cd0b1709 VZ |
2730 | } |
2731 | ||
2732 | if ( *p++ != _T(' ') ) | |
2733 | { | |
2734 | return (wxChar *)NULL; | |
2735 | } | |
2736 | ||
2737 | // the following 3 letters specify the month | |
2738 | wxString monName(p, 3); | |
2739 | Month mon; | |
2740 | if ( monName == _T("Jan") ) | |
2741 | mon = Jan; | |
2742 | else if ( monName == _T("Feb") ) | |
2743 | mon = Feb; | |
2744 | else if ( monName == _T("Mar") ) | |
2745 | mon = Mar; | |
2746 | else if ( monName == _T("Apr") ) | |
2747 | mon = Apr; | |
2748 | else if ( monName == _T("May") ) | |
2749 | mon = May; | |
2750 | else if ( monName == _T("Jun") ) | |
2751 | mon = Jun; | |
2752 | else if ( monName == _T("Jul") ) | |
2753 | mon = Jul; | |
2754 | else if ( monName == _T("Aug") ) | |
2755 | mon = Aug; | |
2756 | else if ( monName == _T("Sep") ) | |
2757 | mon = Sep; | |
2758 | else if ( monName == _T("Oct") ) | |
2759 | mon = Oct; | |
2760 | else if ( monName == _T("Nov") ) | |
2761 | mon = Nov; | |
2762 | else if ( monName == _T("Dec") ) | |
2763 | mon = Dec; | |
2764 | else | |
2765 | { | |
2766 | wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str()); | |
2767 | ||
2768 | return (wxChar *)NULL; | |
2769 | } | |
2770 | ||
2771 | p += 3; | |
2772 | ||
2773 | if ( *p++ != _T(' ') ) | |
2774 | { | |
2775 | return (wxChar *)NULL; | |
2776 | } | |
2777 | ||
2778 | // next is the year | |
2779 | if ( !wxIsdigit(*p) ) | |
2780 | { | |
2781 | // no year? | |
2782 | return (wxChar *)NULL; | |
2783 | } | |
2784 | ||
2785 | int year = *p++ - _T('0'); | |
2786 | ||
2787 | if ( !wxIsdigit(*p) ) | |
2788 | { | |
2789 | // should have at least 2 digits in the year | |
2790 | return (wxChar *)NULL; | |
2791 | } | |
2792 | ||
2793 | year *= 10; | |
2794 | year += *p++ - _T('0'); | |
2795 | ||
2796 | // is it a 2 digit year (as per original RFC 822) or a 4 digit one? | |
2797 | if ( wxIsdigit(*p) ) | |
2798 | { | |
2799 | year *= 10; | |
2800 | year += *p++ - _T('0'); | |
2801 | ||
2802 | if ( !wxIsdigit(*p) ) | |
2803 | { | |
2804 | // no 3 digit years please | |
2805 | return (wxChar *)NULL; | |
2806 | } | |
2807 | ||
2808 | year *= 10; | |
2809 | year += *p++ - _T('0'); | |
2810 | } | |
2811 | ||
2812 | if ( *p++ != _T(' ') ) | |
2813 | { | |
2814 | return (wxChar *)NULL; | |
2815 | } | |
2816 | ||
2817 | // time is in the format hh:mm:ss and seconds are optional | |
2818 | if ( !wxIsdigit(*p) ) | |
2819 | { | |
2820 | return (wxChar *)NULL; | |
2821 | } | |
2822 | ||
42841dfc | 2823 | wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2824 | |
2825 | if ( !wxIsdigit(*p) ) | |
2826 | { | |
2827 | return (wxChar *)NULL; | |
2828 | } | |
2829 | ||
2830 | hour *= 10; | |
42841dfc | 2831 | hour = (wxDateTime_t)(hour + (*p++ - _T('0'))); |
cd0b1709 VZ |
2832 | |
2833 | if ( *p++ != _T(':') ) | |
2834 | { | |
2835 | return (wxChar *)NULL; | |
2836 | } | |
2837 | ||
2838 | if ( !wxIsdigit(*p) ) | |
2839 | { | |
2840 | return (wxChar *)NULL; | |
2841 | } | |
2842 | ||
42841dfc | 2843 | wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2844 | |
2845 | if ( !wxIsdigit(*p) ) | |
2846 | { | |
2847 | return (wxChar *)NULL; | |
2848 | } | |
2849 | ||
2850 | min *= 10; | |
42841dfc | 2851 | min = (wxDateTime_t)(min + *p++ - _T('0')); |
cd0b1709 VZ |
2852 | |
2853 | wxDateTime_t sec = 0; | |
2854 | if ( *p++ == _T(':') ) | |
2855 | { | |
2856 | if ( !wxIsdigit(*p) ) | |
2857 | { | |
2858 | return (wxChar *)NULL; | |
2859 | } | |
2860 | ||
42841dfc | 2861 | sec = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2862 | |
2863 | if ( !wxIsdigit(*p) ) | |
2864 | { | |
2865 | return (wxChar *)NULL; | |
2866 | } | |
2867 | ||
2868 | sec *= 10; | |
42841dfc | 2869 | sec = (wxDateTime_t)(sec + *p++ - _T('0')); |
cd0b1709 VZ |
2870 | } |
2871 | ||
2872 | if ( *p++ != _T(' ') ) | |
2873 | { | |
2874 | return (wxChar *)NULL; | |
2875 | } | |
2876 | ||
2877 | // and now the interesting part: the timezone | |
ba9bbf13 | 2878 | int offset wxDUMMY_INITIALIZE(0); |
cd0b1709 VZ |
2879 | if ( *p == _T('-') || *p == _T('+') ) |
2880 | { | |
2881 | // the explicit offset given: it has the form of hhmm | |
2882 | bool plus = *p++ == _T('+'); | |
2883 | ||
2884 | if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) | |
2885 | { | |
2886 | return (wxChar *)NULL; | |
2887 | } | |
2888 | ||
2889 | // hours | |
d26adb9d | 2890 | offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0'))); |
cd0b1709 VZ |
2891 | |
2892 | p += 2; | |
2893 | ||
2894 | if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) | |
2895 | { | |
2896 | return (wxChar *)NULL; | |
2897 | } | |
2898 | ||
2899 | // minutes | |
2900 | offset += 10*(*p - _T('0')) + (*(p + 1) - _T('0')); | |
2901 | ||
2902 | if ( !plus ) | |
2903 | { | |
2904 | offset = -offset; | |
2905 | } | |
2906 | ||
2907 | p += 2; | |
2908 | } | |
2909 | else | |
2910 | { | |
2911 | // the symbolic timezone given: may be either military timezone or one | |
2912 | // of standard abbreviations | |
2913 | if ( !*(p + 1) ) | |
2914 | { | |
2915 | // military: Z = UTC, J unused, A = -1, ..., Y = +12 | |
2916 | static const int offsets[26] = | |
2917 | { | |
2918 | //A B C D E F G H I J K L M | |
2919 | -1, -2, -3, -4, -5, -6, -7, -8, -9, 0, -10, -11, -12, | |
2920 | //N O P R Q S T U V W Z Y Z | |
2921 | +1, +2, +3, +4, +5, +6, +7, +8, +9, +10, +11, +12, 0 | |
2922 | }; | |
2923 | ||
2924 | if ( *p < _T('A') || *p > _T('Z') || *p == _T('J') ) | |
2925 | { | |
2926 | wxLogDebug(_T("Invalid militaty timezone '%c'"), *p); | |
2927 | ||
2928 | return (wxChar *)NULL; | |
2929 | } | |
2930 | ||
2931 | offset = offsets[*p++ - _T('A')]; | |
2932 | } | |
2933 | else | |
2934 | { | |
2935 | // abbreviation | |
2936 | wxString tz = p; | |
2937 | if ( tz == _T("UT") || tz == _T("UTC") || tz == _T("GMT") ) | |
2938 | offset = 0; | |
2939 | else if ( tz == _T("AST") ) | |
2940 | offset = AST - GMT0; | |
2941 | else if ( tz == _T("ADT") ) | |
2942 | offset = ADT - GMT0; | |
2943 | else if ( tz == _T("EST") ) | |
2944 | offset = EST - GMT0; | |
2945 | else if ( tz == _T("EDT") ) | |
2946 | offset = EDT - GMT0; | |
2947 | else if ( tz == _T("CST") ) | |
2948 | offset = CST - GMT0; | |
2949 | else if ( tz == _T("CDT") ) | |
2950 | offset = CDT - GMT0; | |
2951 | else if ( tz == _T("MST") ) | |
2952 | offset = MST - GMT0; | |
2953 | else if ( tz == _T("MDT") ) | |
2954 | offset = MDT - GMT0; | |
2955 | else if ( tz == _T("PST") ) | |
2956 | offset = PST - GMT0; | |
2957 | else if ( tz == _T("PDT") ) | |
2958 | offset = PDT - GMT0; | |
2959 | else | |
2960 | { | |
2961 | wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p); | |
2962 | ||
2963 | return (wxChar *)NULL; | |
2964 | } | |
2965 | ||
2966 | p += tz.length(); | |
2967 | } | |
96531a71 | 2968 | |
cd0b1709 | 2969 | // make it minutes |
d26adb9d | 2970 | offset *= MIN_PER_HOUR; |
cd0b1709 VZ |
2971 | } |
2972 | ||
d26adb9d | 2973 | // the spec was correct, construct the date from the values we found |
cd0b1709 | 2974 | Set(day, mon, year, hour, min, sec); |
18c9aebe | 2975 | MakeFromTimezone(TimeZone((wxDateTime_t)(offset*SEC_PER_MIN))); |
cd0b1709 VZ |
2976 | |
2977 | return p; | |
2978 | } | |
2979 | ||
64f9c100 | 2980 | #ifdef __WINDOWS__ |
e44501a0 | 2981 | |
be4e7abf VZ |
2982 | // returns the string containing strftime() format used for short dates in the |
2983 | // current locale or an empty string | |
2984 | static wxString GetLocaleDateFormat() | |
64f9c100 | 2985 | { |
be4e7abf VZ |
2986 | wxString fmtWX; |
2987 | ||
05eb2d40 VZ |
2988 | // there is no setlocale() under Windows CE, so just always query the |
2989 | // system there | |
2990 | #ifndef __WXWINCE__ | |
64f9c100 | 2991 | if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 ) |
e44501a0 | 2992 | #endif |
64f9c100 VS |
2993 | { |
2994 | // The locale was programatically set to non-C. We assume that this was | |
2995 | // done using wxLocale, in which case thread's current locale is also | |
2996 | // set to correct LCID value and we can use GetLocaleInfo to determine | |
2997 | // the correct formatting string: | |
c5fe22f8 JS |
2998 | #ifdef __WXWINCE__ |
2999 | LCID lcid = LOCALE_USER_DEFAULT; | |
3000 | #else | |
64f9c100 | 3001 | LCID lcid = GetThreadLocale(); |
c5fe22f8 | 3002 | #endif |
be4e7abf VZ |
3003 | // according to MSDN 80 chars is max allowed for short date format |
3004 | wxChar fmt[81]; | |
3005 | if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) ) | |
64f9c100 | 3006 | { |
be4e7abf VZ |
3007 | wxChar chLast = _T('\0'); |
3008 | size_t lastCount = 0; | |
3009 | for ( const wxChar *p = fmt; /* NUL handled inside */; p++ ) | |
64f9c100 | 3010 | { |
be4e7abf | 3011 | if ( *p == chLast ) |
64f9c100 | 3012 | { |
be4e7abf VZ |
3013 | lastCount++; |
3014 | continue; | |
64f9c100 | 3015 | } |
be4e7abf VZ |
3016 | |
3017 | switch ( *p ) | |
64f9c100 | 3018 | { |
be4e7abf VZ |
3019 | // these characters come in groups, start counting them |
3020 | case _T('d'): | |
3021 | case _T('M'): | |
3022 | case _T('y'): | |
3023 | case _T('g'): | |
3024 | chLast = *p; | |
3025 | lastCount = 1; | |
3026 | break; | |
3027 | ||
3028 | default: | |
3029 | // first deal with any special characters we have had | |
3030 | if ( lastCount ) | |
3031 | { | |
3032 | switch ( chLast ) | |
3033 | { | |
3034 | case _T('d'): | |
3035 | switch ( lastCount ) | |
3036 | { | |
3037 | case 1: // d | |
3038 | case 2: // dd | |
3039 | // these two are the same as we | |
3040 | // don't distinguish between 1 and | |
3041 | // 2 digits for days | |
3042 | fmtWX += _T("%d"); | |
3043 | break; | |
3044 | ||
3045 | case 3: // ddd | |
3046 | fmtWX += _T("%a"); | |
3047 | break; | |
3048 | ||
3049 | case 4: // dddd | |
3050 | fmtWX += _T("%A"); | |
3051 | break; | |
3052 | ||
3053 | default: | |
3054 | wxFAIL_MSG( _T("too many 'd's") ); | |
3055 | } | |
3056 | break; | |
3057 | ||
3058 | case _T('M'): | |
3059 | switch ( lastCount ) | |
3060 | { | |
3061 | case 1: // M | |
3062 | case 2: // MM | |
3063 | // as for 'd' and 'dd' above | |
3064 | fmtWX += _T("%m"); | |
3065 | break; | |
3066 | ||
3067 | case 3: | |
3068 | fmtWX += _T("%b"); | |
3069 | break; | |
3070 | ||
3071 | case 4: | |
3072 | fmtWX += _T("%B"); | |
3073 | break; | |
3074 | ||
3075 | default: | |
3076 | wxFAIL_MSG( _T("too many 'M's") ); | |
3077 | } | |
3078 | break; | |
3079 | ||
3080 | case _T('y'): | |
3081 | switch ( lastCount ) | |
3082 | { | |
3083 | case 1: // y | |
3084 | case 2: // yy | |
3085 | fmtWX += _T("%y"); | |
3086 | break; | |
3087 | ||
3088 | case 4: // yyyy | |
3089 | fmtWX += _T("%Y"); | |
3090 | break; | |
3091 | ||
3092 | default: | |
3093 | wxFAIL_MSG( _T("wrong number of 'y's") ); | |
3094 | } | |
3095 | break; | |
3096 | ||
3097 | case _T('g'): | |
3098 | // strftime() doesn't have era string, | |
3099 | // ignore this format | |
3100 | wxASSERT_MSG( lastCount <= 2, | |
3101 | _T("too many 'g's") ); | |
3102 | break; | |
3103 | ||
3104 | default: | |
3105 | wxFAIL_MSG( _T("unreachable") ); | |
3106 | } | |
3107 | ||
3108 | chLast = _T('\0'); | |
3109 | lastCount = 0; | |
3110 | } | |
3111 | ||
3112 | // not a special character so must be just a separator, | |
3113 | // treat as is | |
3114 | if ( *p != _T('\0') ) | |
3115 | { | |
3116 | if ( *p == _T('%') ) | |
3117 | { | |
3118 | // this one needs to be escaped | |
3119 | fmtWX += _T('%'); | |
3120 | } | |
3121 | ||
3122 | fmtWX += *p; | |
3123 | } | |
64f9c100 | 3124 | } |
be4e7abf VZ |
3125 | |
3126 | if ( *p == _T('\0') ) | |
3127 | break; | |
64f9c100 VS |
3128 | } |
3129 | } | |
be4e7abf VZ |
3130 | //else: GetLocaleInfo() failed, leave fmtDate value unchanged and |
3131 | // try our luck with the default formats | |
64f9c100 | 3132 | } |
be4e7abf VZ |
3133 | //else: default C locale, default formats should work |
3134 | ||
3135 | return fmtWX; | |
64f9c100 | 3136 | } |
e44501a0 | 3137 | |
64f9c100 VS |
3138 | #endif // __WINDOWS__ |
3139 | ||
f0f951fa | 3140 | const wxChar *wxDateTime::ParseFormat(const wxChar *date, |
12e82477 | 3141 | const wxString& format, |
f0f951fa | 3142 | const wxDateTime& dateDef) |
cd0b1709 | 3143 | { |
12e82477 | 3144 | wxCHECK_MSG( date && !format.empty(), (wxChar *)NULL, |
f0f951fa | 3145 | _T("NULL pointer in wxDateTime::ParseFormat()") ); |
cd0b1709 | 3146 | |
f0f951fa VZ |
3147 | wxString str; |
3148 | unsigned long num; | |
cd0b1709 | 3149 | |
f0f951fa | 3150 | // what fields have we found? |
68379eaf WS |
3151 | bool haveWDay = false, |
3152 | haveYDay = false, | |
3153 | haveDay = false, | |
3154 | haveMon = false, | |
3155 | haveYear = false, | |
3156 | haveHour = false, | |
3157 | haveMin = false, | |
3158 | haveSec = false; | |
3159 | ||
3160 | bool hourIsIn12hFormat = false, // or in 24h one? | |
3161 | isPM = false; // AM by default | |
f0f951fa VZ |
3162 | |
3163 | // and the value of the items we have (init them to get rid of warnings) | |
3164 | wxDateTime_t sec = 0, | |
3165 | min = 0, | |
3166 | hour = 0; | |
3167 | WeekDay wday = Inv_WeekDay; | |
3168 | wxDateTime_t yday = 0, | |
3169 | mday = 0; | |
3170 | wxDateTime::Month mon = Inv_Month; | |
3171 | int year = 0; | |
3172 | ||
3173 | const wxChar *input = date; | |
12e82477 | 3174 | for ( wxString::const_iterator fmt = format.begin(); fmt != format.end(); ++fmt ) |
f0f951fa VZ |
3175 | { |
3176 | if ( *fmt != _T('%') ) | |
3177 | { | |
3178 | if ( wxIsspace(*fmt) ) | |
3179 | { | |
3180 | // a white space in the format string matches 0 or more white | |
3181 | // spaces in the input | |
3182 | while ( wxIsspace(*input) ) | |
3183 | { | |
3184 | input++; | |
3185 | } | |
3186 | } | |
3187 | else // !space | |
3188 | { | |
3189 | // any other character (not whitespace, not '%') must be | |
3190 | // matched by itself in the input | |
3191 | if ( *input++ != *fmt ) | |
3192 | { | |
3193 | // no match | |
3194 | return (wxChar *)NULL; | |
3195 | } | |
3196 | } | |
3197 | ||
3198 | // done with this format char | |
3199 | continue; | |
3200 | } | |
3201 | ||
3202 | // start of a format specification | |
f6bcfd97 BP |
3203 | |
3204 | // parse the optional width | |
3205 | size_t width = 0; | |
1c193821 | 3206 | while ( wxIsdigit(*++fmt) ) |
f6bcfd97 BP |
3207 | { |
3208 | width *= 10; | |
3209 | width += *fmt - _T('0'); | |
3210 | } | |
3211 | ||
4147efe9 VZ |
3212 | // the default widths for the various fields |
3213 | if ( !width ) | |
3214 | { | |
12e82477 | 3215 | switch ( (*fmt).GetValue() ) |
4147efe9 VZ |
3216 | { |
3217 | case _T('Y'): // year has 4 digits | |
3218 | width = 4; | |
3219 | break; | |
3220 | ||
3221 | case _T('j'): // day of year has 3 digits | |
3222 | case _T('l'): // milliseconds have 3 digits | |
3223 | width = 3; | |
3224 | break; | |
3225 | ||
3226 | case _T('w'): // week day as number has only one | |
3227 | width = 1; | |
3228 | break; | |
3229 | ||
3230 | default: | |
3231 | // default for all other fields | |
3232 | width = 2; | |
3233 | } | |
3234 | } | |
3235 | ||
f6bcfd97 | 3236 | // then the format itself |
12e82477 | 3237 | switch ( (*fmt).GetValue() ) |
f0f951fa VZ |
3238 | { |
3239 | case _T('a'): // a weekday name | |
3240 | case _T('A'): | |
3241 | { | |
3242 | int flag = *fmt == _T('a') ? Name_Abbr : Name_Full; | |
3243 | wday = GetWeekDayFromName(GetAlphaToken(input), flag); | |
3244 | if ( wday == Inv_WeekDay ) | |
3245 | { | |
3246 | // no match | |
3247 | return (wxChar *)NULL; | |
3248 | } | |
3249 | } | |
68379eaf | 3250 | haveWDay = true; |
f0f951fa VZ |
3251 | break; |
3252 | ||
3253 | case _T('b'): // a month name | |
3254 | case _T('B'): | |
3255 | { | |
3256 | int flag = *fmt == _T('b') ? Name_Abbr : Name_Full; | |
3257 | mon = GetMonthFromName(GetAlphaToken(input), flag); | |
3258 | if ( mon == Inv_Month ) | |
3259 | { | |
3260 | // no match | |
3261 | return (wxChar *)NULL; | |
3262 | } | |
3263 | } | |
68379eaf | 3264 | haveMon = true; |
f0f951fa VZ |
3265 | break; |
3266 | ||
3267 | case _T('c'): // locale default date and time representation | |
3268 | { | |
3269 | wxDateTime dt; | |
3270 | ||
3271 | // this is the format which corresponds to ctime() output | |
3272 | // and strptime("%c") should parse it, so try it first | |
41acf5c0 | 3273 | static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y"); |
f0f951fa VZ |
3274 | |
3275 | const wxChar *result = dt.ParseFormat(input, fmtCtime); | |
3276 | if ( !result ) | |
3277 | { | |
3278 | result = dt.ParseFormat(input, _T("%x %X")); | |
3279 | } | |
3280 | ||
3281 | if ( !result ) | |
3282 | { | |
3283 | result = dt.ParseFormat(input, _T("%X %x")); | |
3284 | } | |
3285 | ||
3286 | if ( !result ) | |
3287 | { | |
3288 | // we've tried everything and still no match | |
3289 | return (wxChar *)NULL; | |
3290 | } | |
3291 | ||
be4017f8 VZ |
3292 | Tm tm = dt.GetTm(); |
3293 | ||
3294 | haveDay = haveMon = haveYear = | |
68379eaf | 3295 | haveHour = haveMin = haveSec = true; |
be4017f8 VZ |
3296 | |
3297 | hour = tm.hour; | |
3298 | min = tm.min; | |
3299 | sec = tm.sec; | |
3300 | ||
3301 | year = tm.year; | |
3302 | mon = tm.mon; | |
3303 | mday = tm.mday; | |
3304 | ||
f0f951fa VZ |
3305 | input = result; |
3306 | } | |
3307 | break; | |
3308 | ||
3309 | case _T('d'): // day of a month (01-31) | |
f6bcfd97 BP |
3310 | if ( !GetNumericToken(width, input, &num) || |
3311 | (num > 31) || (num < 1) ) | |
f0f951fa VZ |
3312 | { |
3313 | // no match | |
3314 | return (wxChar *)NULL; | |
3315 | } | |
3316 | ||
3317 | // we can't check whether the day range is correct yet, will | |
3318 | // do it later - assume ok for now | |
68379eaf | 3319 | haveDay = true; |
f0f951fa VZ |
3320 | mday = (wxDateTime_t)num; |
3321 | break; | |
5f287370 | 3322 | |
f0f951fa | 3323 | case _T('H'): // hour in 24h format (00-23) |
f6bcfd97 | 3324 | if ( !GetNumericToken(width, input, &num) || (num > 23) ) |
f0f951fa VZ |
3325 | { |
3326 | // no match | |
3327 | return (wxChar *)NULL; | |
3328 | } | |
3329 | ||
68379eaf | 3330 | haveHour = true; |
f0f951fa VZ |
3331 | hour = (wxDateTime_t)num; |
3332 | break; | |
3333 | ||
3334 | case _T('I'): // hour in 12h format (01-12) | |
f6bcfd97 | 3335 | if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) |
f0f951fa VZ |
3336 | { |
3337 | // no match | |
3338 | return (wxChar *)NULL; | |
3339 | } | |
3340 | ||
68379eaf WS |
3341 | haveHour = true; |
3342 | hourIsIn12hFormat = true; | |
479cd5de | 3343 | hour = (wxDateTime_t)(num % 12); // 12 should be 0 |
f0f951fa VZ |
3344 | break; |
3345 | ||
3346 | case _T('j'): // day of the year | |
f6bcfd97 | 3347 | if ( !GetNumericToken(width, input, &num) || !num || (num > 366) ) |
f0f951fa VZ |
3348 | { |
3349 | // no match | |
3350 | return (wxChar *)NULL; | |
3351 | } | |
3352 | ||
68379eaf | 3353 | haveYDay = true; |
f0f951fa VZ |
3354 | yday = (wxDateTime_t)num; |
3355 | break; | |
3356 | ||
3357 | case _T('m'): // month as a number (01-12) | |
f6bcfd97 | 3358 | if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) |
f0f951fa VZ |
3359 | { |
3360 | // no match | |
3361 | return (wxChar *)NULL; | |
3362 | } | |
3363 | ||
68379eaf | 3364 | haveMon = true; |
be4017f8 | 3365 | mon = (Month)(num - 1); |
f0f951fa VZ |
3366 | break; |
3367 | ||
3368 | case _T('M'): // minute as a decimal number (00-59) | |
f6bcfd97 | 3369 | if ( !GetNumericToken(width, input, &num) || (num > 59) ) |
f0f951fa VZ |
3370 | { |
3371 | // no match | |
3372 | return (wxChar *)NULL; | |
3373 | } | |
3374 | ||
68379eaf | 3375 | haveMin = true; |
f0f951fa VZ |
3376 | min = (wxDateTime_t)num; |
3377 | break; | |
3378 | ||
3379 | case _T('p'): // AM or PM string | |
3380 | { | |
3381 | wxString am, pm, token = GetAlphaToken(input); | |
3382 | ||
3383 | GetAmPmStrings(&am, &pm); | |
bb8a8478 | 3384 | if (am.empty() && pm.empty()) |
0308fd61 | 3385 | return (wxChar *)NULL; // no am/pm strings defined |
f0f951fa VZ |
3386 | if ( token.CmpNoCase(pm) == 0 ) |
3387 | { | |
68379eaf | 3388 | isPM = true; |
f0f951fa VZ |
3389 | } |
3390 | else if ( token.CmpNoCase(am) != 0 ) | |
3391 | { | |
3392 | // no match | |
3393 | return (wxChar *)NULL; | |
3394 | } | |
3395 | } | |
3396 | break; | |
3397 | ||
3398 | case _T('r'): // time as %I:%M:%S %p | |
3399 | { | |
3400 | wxDateTime dt; | |
3401 | input = dt.ParseFormat(input, _T("%I:%M:%S %p")); | |
3402 | if ( !input ) | |
3403 | { | |
3404 | // no match | |
3405 | return (wxChar *)NULL; | |
3406 | } | |
3407 | ||
68379eaf | 3408 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3409 | |
3410 | Tm tm = dt.GetTm(); | |
3411 | hour = tm.hour; | |
3412 | min = tm.min; | |
3413 | sec = tm.sec; | |
3414 | } | |
3415 | break; | |
3416 | ||
3417 | case _T('R'): // time as %H:%M | |
3418 | { | |
3419 | wxDateTime dt; | |
3420 | input = dt.ParseFormat(input, _T("%H:%M")); | |
3421 | if ( !input ) | |
3422 | { | |
3423 | // no match | |
3424 | return (wxChar *)NULL; | |
3425 | } | |
3426 | ||
68379eaf | 3427 | haveHour = haveMin = true; |
f0f951fa VZ |
3428 | |
3429 | Tm tm = dt.GetTm(); | |
3430 | hour = tm.hour; | |
3431 | min = tm.min; | |
3432 | } | |
7d3e806d | 3433 | break; |
f0f951fa VZ |
3434 | |
3435 | case _T('S'): // second as a decimal number (00-61) | |
f6bcfd97 | 3436 | if ( !GetNumericToken(width, input, &num) || (num > 61) ) |
f0f951fa VZ |
3437 | { |
3438 | // no match | |
3439 | return (wxChar *)NULL; | |
3440 | } | |
3441 | ||
68379eaf | 3442 | haveSec = true; |
f0f951fa VZ |
3443 | sec = (wxDateTime_t)num; |
3444 | break; | |
3445 | ||
3446 | case _T('T'): // time as %H:%M:%S | |
3447 | { | |
3448 | wxDateTime dt; | |
3449 | input = dt.ParseFormat(input, _T("%H:%M:%S")); | |
3450 | if ( !input ) | |
3451 | { | |
3452 | // no match | |
3453 | return (wxChar *)NULL; | |
3454 | } | |
3455 | ||
68379eaf | 3456 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3457 | |
3458 | Tm tm = dt.GetTm(); | |
3459 | hour = tm.hour; | |
3460 | min = tm.min; | |
3461 | sec = tm.sec; | |
3462 | } | |
be4017f8 | 3463 | break; |
f0f951fa VZ |
3464 | |
3465 | case _T('w'): // weekday as a number (0-6), Sunday = 0 | |
f6bcfd97 | 3466 | if ( !GetNumericToken(width, input, &num) || (wday > 6) ) |
f0f951fa VZ |
3467 | { |
3468 | // no match | |
3469 | return (wxChar *)NULL; | |
3470 | } | |
3471 | ||
68379eaf | 3472 | haveWDay = true; |
f0f951fa VZ |
3473 | wday = (WeekDay)num; |
3474 | break; | |
3475 | ||
3476 | case _T('x'): // locale default date representation | |
3477 | #ifdef HAVE_STRPTIME | |
2423ef22 | 3478 | // try using strptime() -- it may fail even if the input is |
f0f951fa | 3479 | // correct but the date is out of range, so we will fall back |
2423ef22 | 3480 | // to our generic code anyhow |
f0f951fa VZ |
3481 | { |
3482 | struct tm tm; | |
2423ef22 VZ |
3483 | |
3484 | const wxChar *result = CallStrptime(input, "%x", &tm); | |
f0f951fa VZ |
3485 | if ( result ) |
3486 | { | |
3487 | input = result; | |
3488 | ||
68379eaf | 3489 | haveDay = haveMon = haveYear = true; |
f0f951fa VZ |
3490 | |
3491 | year = 1900 + tm.tm_year; | |
3492 | mon = (Month)tm.tm_mon; | |
3493 | mday = tm.tm_mday; | |
3494 | ||
3495 | break; | |
3496 | } | |
3497 | } | |
3498 | #endif // HAVE_STRPTIME | |
3499 | ||
f0f951fa VZ |
3500 | { |
3501 | wxDateTime dt; | |
be4e7abf VZ |
3502 | wxString fmtDate, |
3503 | fmtDateAlt; | |
f0f951fa | 3504 | |
64f9c100 VS |
3505 | #ifdef __WINDOWS__ |
3506 | // The above doesn't work for all locales, try to query | |
3507 | // Windows for the right way of formatting the date: | |
be4e7abf VZ |
3508 | fmtDate = GetLocaleDateFormat(); |
3509 | if ( fmtDate.empty() ) | |
64f9c100 | 3510 | #endif |
be4e7abf VZ |
3511 | { |
3512 | if ( IsWestEuropeanCountry(GetCountry()) || | |
3513 | GetCountry() == Russia ) | |
3514 | { | |
3515 | fmtDate = _T("%d/%m/%y"); | |
3516 | fmtDateAlt = _T("%m/%d/%y"); | |
3517 | } | |
3518 | else // assume USA | |
3519 | { | |
3520 | fmtDate = _T("%m/%d/%y"); | |
3521 | fmtDateAlt = _T("%d/%m/%y"); | |
3522 | } | |
3523 | } | |
64f9c100 | 3524 | |
f0f951fa | 3525 | const wxChar *result = dt.ParseFormat(input, fmtDate); |
41acf5c0 | 3526 | |
be4e7abf | 3527 | if ( !result && !fmtDateAlt.empty() ) |
41acf5c0 VZ |
3528 | { |
3529 | // ok, be nice and try another one | |
3530 | result = dt.ParseFormat(input, fmtDateAlt); | |
3531 | } | |
3532 | ||
f0f951fa VZ |
3533 | if ( !result ) |
3534 | { | |
3535 | // bad luck | |
3536 | return (wxChar *)NULL; | |
3537 | } | |
3538 | ||
3539 | Tm tm = dt.GetTm(); | |
3540 | ||
68379eaf | 3541 | haveDay = haveMon = haveYear = true; |
f0f951fa VZ |
3542 | |
3543 | year = tm.year; | |
3544 | mon = tm.mon; | |
3545 | mday = tm.mday; | |
3546 | ||
3547 | input = result; | |
3548 | } | |
3549 | ||
3550 | break; | |
3551 | ||
3552 | case _T('X'): // locale default time representation | |
3553 | #ifdef HAVE_STRPTIME | |
3554 | { | |
3555 | // use strptime() to do it for us (FIXME !Unicode friendly) | |
3556 | struct tm tm; | |
2423ef22 | 3557 | input = CallStrptime(input, "%X", &tm); |
f0f951fa VZ |
3558 | if ( !input ) |
3559 | { | |
3560 | return (wxChar *)NULL; | |
3561 | } | |
3562 | ||
68379eaf | 3563 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3564 | |
3565 | hour = tm.tm_hour; | |
3566 | min = tm.tm_min; | |
3567 | sec = tm.tm_sec; | |
3568 | } | |
3569 | #else // !HAVE_STRPTIME | |
3570 | // TODO under Win32 we can query the LOCALE_ITIME system | |
3571 | // setting which says whether the default time format is | |
3572 | // 24 or 12 hour | |
3573 | { | |
3574 | // try to parse what follows as "%H:%M:%S" and, if this | |
3575 | // fails, as "%I:%M:%S %p" - this should catch the most | |
3576 | // common cases | |
3577 | wxDateTime dt; | |
3578 | ||
3579 | const wxChar *result = dt.ParseFormat(input, _T("%T")); | |
3580 | if ( !result ) | |
3581 | { | |
3582 | result = dt.ParseFormat(input, _T("%r")); | |
3583 | } | |
3584 | ||
3585 | if ( !result ) | |
3586 | { | |
3587 | // no match | |
3588 | return (wxChar *)NULL; | |
3589 | } | |
3590 | ||
68379eaf | 3591 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3592 | |
3593 | Tm tm = dt.GetTm(); | |
3594 | hour = tm.hour; | |
3595 | min = tm.min; | |
3596 | sec = tm.sec; | |
3597 | ||
3598 | input = result; | |
3599 | } | |
3600 | #endif // HAVE_STRPTIME/!HAVE_STRPTIME | |
3601 | break; | |
3602 | ||
3603 | case _T('y'): // year without century (00-99) | |
f6bcfd97 | 3604 | if ( !GetNumericToken(width, input, &num) || (num > 99) ) |
f0f951fa VZ |
3605 | { |
3606 | // no match | |
3607 | return (wxChar *)NULL; | |
3608 | } | |
3609 | ||
68379eaf | 3610 | haveYear = true; |
f6bcfd97 BP |
3611 | |
3612 | // TODO should have an option for roll over date instead of | |
3613 | // hard coding it here | |
3614 | year = (num > 30 ? 1900 : 2000) + (wxDateTime_t)num; | |
f0f951fa VZ |
3615 | break; |
3616 | ||
3617 | case _T('Y'): // year with century | |
f6bcfd97 | 3618 | if ( !GetNumericToken(width, input, &num) ) |
f0f951fa VZ |
3619 | { |
3620 | // no match | |
3621 | return (wxChar *)NULL; | |
3622 | } | |
3623 | ||
68379eaf | 3624 | haveYear = true; |
be4017f8 | 3625 | year = (wxDateTime_t)num; |
f0f951fa VZ |
3626 | break; |
3627 | ||
3628 | case _T('Z'): // timezone name | |
3629 | wxFAIL_MSG(_T("TODO")); | |
3630 | break; | |
3631 | ||
3632 | case _T('%'): // a percent sign | |
3633 | if ( *input++ != _T('%') ) | |
3634 | { | |
3635 | // no match | |
3636 | return (wxChar *)NULL; | |
3637 | } | |
3638 | break; | |
3639 | ||
3640 | case 0: // the end of string | |
3641 | wxFAIL_MSG(_T("unexpected format end")); | |
3642 | ||
3643 | // fall through | |
3644 | ||
3645 | default: // not a known format spec | |
3646 | return (wxChar *)NULL; | |
3647 | } | |
3648 | } | |
3649 | ||
3650 | // format matched, try to construct a date from what we have now | |
3651 | Tm tmDef; | |
3652 | if ( dateDef.IsValid() ) | |
3653 | { | |
3654 | // take this date as default | |
3655 | tmDef = dateDef.GetTm(); | |
3656 | } | |
c3302e7e | 3657 | else if ( IsValid() ) |
f0f951fa VZ |
3658 | { |
3659 | // if this date is valid, don't change it | |
3660 | tmDef = GetTm(); | |
3661 | } | |
3662 | else | |
3663 | { | |
3664 | // no default and this date is invalid - fall back to Today() | |
3665 | tmDef = Today().GetTm(); | |
3666 | } | |
3667 | ||
3668 | Tm tm = tmDef; | |
3669 | ||
3670 | // set the date | |
3671 | if ( haveYear ) | |
3672 | { | |
3673 | tm.year = year; | |
3674 | } | |
3675 | ||
3676 | // TODO we don't check here that the values are consistent, if both year | |
3677 | // day and month/day were found, we just ignore the year day and we | |
3678 | // also always ignore the week day | |
3679 | if ( haveMon && haveDay ) | |
3680 | { | |
be4017f8 VZ |
3681 | if ( mday > GetNumOfDaysInMonth(tm.year, mon) ) |
3682 | { | |
3683 | wxLogDebug(_T("bad month day in wxDateTime::ParseFormat")); | |
3684 | ||
3685 | return (wxChar *)NULL; | |
3686 | } | |
3687 | ||
f0f951fa VZ |
3688 | tm.mon = mon; |
3689 | tm.mday = mday; | |
3690 | } | |
3691 | else if ( haveYDay ) | |
3692 | { | |
be4017f8 VZ |
3693 | if ( yday > GetNumberOfDays(tm.year) ) |
3694 | { | |
3695 | wxLogDebug(_T("bad year day in wxDateTime::ParseFormat")); | |
3696 | ||
3697 | return (wxChar *)NULL; | |
3698 | } | |
3699 | ||
f0f951fa VZ |
3700 | Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm(); |
3701 | ||
3702 | tm.mon = tm2.mon; | |
3703 | tm.mday = tm2.mday; | |
3704 | } | |
3705 | ||
3706 | // deal with AM/PM | |
3707 | if ( haveHour && hourIsIn12hFormat && isPM ) | |
3708 | { | |
3709 | // translate to 24hour format | |
3710 | hour += 12; | |
3711 | } | |
3712 | //else: either already in 24h format or no translation needed | |
3713 | ||
3714 | // set the time | |
3715 | if ( haveHour ) | |
3716 | { | |
5f287370 | 3717 | tm.hour = hour; |
f0f951fa VZ |
3718 | } |
3719 | ||
3720 | if ( haveMin ) | |
3721 | { | |
3722 | tm.min = min; | |
3723 | } | |
3724 | ||
3725 | if ( haveSec ) | |
3726 | { | |
3727 | tm.sec = sec; | |
3728 | } | |
3729 | ||
3730 | Set(tm); | |
3731 | ||
88a036ce VZ |
3732 | // finally check that the week day is consistent -- if we had it |
3733 | if ( haveWDay && GetWeekDay() != wday ) | |
3734 | { | |
3735 | wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()")); | |
3736 | ||
3737 | return NULL; | |
3738 | } | |
3739 | ||
f0f951fa | 3740 | return input; |
cd0b1709 VZ |
3741 | } |
3742 | ||
3743 | const wxChar *wxDateTime::ParseDateTime(const wxChar *date) | |
3744 | { | |
3745 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
3746 | ||
de07d200 VZ |
3747 | // Set to current day and hour, so strings like '14:00' becomes today at |
3748 | // 14, not some other random date | |
3749 | wxDateTime dtDate = wxDateTime::Today(); | |
3750 | wxDateTime dtTime = wxDateTime::Today(); | |
cd0b1709 | 3751 | |
de07d200 VZ |
3752 | const wxChar* pchTime; |
3753 | ||
3754 | // Try to parse the beginning of the string as a date | |
3755 | const wxChar* pchDate = dtDate.ParseDate(date); | |
3756 | ||
3757 | // We got a date in the beginning, see if there is a time specified after the date | |
3758 | if ( pchDate ) | |
3759 | { | |
3760 | // Skip spaces, as the ParseTime() function fails on spaces | |
3761 | while ( wxIsspace(*pchDate) ) | |
3762 | pchDate++; | |
3763 | ||
3764 | pchTime = dtTime.ParseTime(pchDate); | |
3765 | } | |
3766 | else // no date in the beginning | |
3767 | { | |
3768 | // check and see if we have a time followed by a date | |
3769 | pchTime = dtTime.ParseTime(date); | |
3770 | if ( pchTime ) | |
3771 | { | |
3772 | while ( wxIsspace(*pchTime) ) | |
3773 | pchTime++; | |
3774 | ||
3775 | pchDate = dtDate.ParseDate(pchTime); | |
3776 | } | |
3777 | } | |
3778 | ||
3779 | // If we have a date specified, set our own data to the same date | |
3780 | if ( !pchDate || !pchTime ) | |
3781 | return NULL; | |
3782 | ||
3783 | Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(), | |
3784 | dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(), | |
3785 | dtTime.GetMillisecond()); | |
3786 | ||
3787 | // Return endpoint of scan | |
3788 | return pchDate > pchTime ? pchDate : pchTime; | |
cd0b1709 VZ |
3789 | } |
3790 | ||
3791 | const wxChar *wxDateTime::ParseDate(const wxChar *date) | |
3792 | { | |
3793 | // this is a simplified version of ParseDateTime() which understands only | |
3794 | // "today" (for wxDate compatibility) and digits only otherwise (and not | |
3795 | // all esoteric constructions ParseDateTime() knows about) | |
3796 | ||
3797 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
3798 | ||
3799 | const wxChar *p = date; | |
3800 | while ( wxIsspace(*p) ) | |
3801 | p++; | |
3802 | ||
fd9f9f4c VZ |
3803 | // some special cases |
3804 | static struct | |
cd0b1709 | 3805 | { |
fd9f9f4c VZ |
3806 | const wxChar *str; |
3807 | int dayDiffFromToday; | |
3808 | } literalDates[] = | |
3809 | { | |
3810 | { wxTRANSLATE("today"), 0 }, | |
3811 | { wxTRANSLATE("yesterday"), -1 }, | |
3812 | { wxTRANSLATE("tomorrow"), 1 }, | |
3813 | }; | |
3814 | ||
3815 | for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ ) | |
3816 | { | |
7a7bd38a VZ |
3817 | const wxString dateStr = wxGetTranslation(literalDates[n].str); |
3818 | size_t len = dateStr.length(); | |
907173e5 | 3819 | if ( wxStrlen(p) >= len ) |
fd9f9f4c | 3820 | { |
907173e5 | 3821 | wxString str(p, len); |
7a7bd38a | 3822 | if ( str.CmpNoCase(dateStr) == 0 ) |
fd9f9f4c | 3823 | { |
907173e5 WS |
3824 | // nothing can follow this, so stop here |
3825 | p += len; | |
3826 | ||
3827 | int dayDiffFromToday = literalDates[n].dayDiffFromToday; | |
3828 | *this = Today(); | |
3829 | if ( dayDiffFromToday ) | |
3830 | { | |
3831 | *this += wxDateSpan::Days(dayDiffFromToday); | |
3832 | } | |
cd0b1709 | 3833 | |
907173e5 WS |
3834 | return p; |
3835 | } | |
fd9f9f4c | 3836 | } |
cd0b1709 VZ |
3837 | } |
3838 | ||
3ca6a5f0 BP |
3839 | // We try to guess what we have here: for each new (numeric) token, we |
3840 | // determine if it can be a month, day or a year. Of course, there is an | |
3841 | // ambiguity as some numbers may be days as well as months, so we also | |
3842 | // have the ability to back track. | |
3843 | ||
cd0b1709 | 3844 | // what do we have? |
68379eaf WS |
3845 | bool haveDay = false, // the months day? |
3846 | haveWDay = false, // the day of week? | |
3847 | haveMon = false, // the month? | |
3848 | haveYear = false; // the year? | |
cd0b1709 VZ |
3849 | |
3850 | // and the value of the items we have (init them to get rid of warnings) | |
3851 | WeekDay wday = Inv_WeekDay; | |
3852 | wxDateTime_t day = 0; | |
3853 | wxDateTime::Month mon = Inv_Month; | |
3854 | int year = 0; | |
3855 | ||
3856 | // tokenize the string | |
f6bcfd97 | 3857 | size_t nPosCur = 0; |
62ae2780 | 3858 | static const wxChar *dateDelimiters = _T(".,/-\t\r\n "); |
f6bcfd97 | 3859 | wxStringTokenizer tok(p, dateDelimiters); |
cd0b1709 VZ |
3860 | while ( tok.HasMoreTokens() ) |
3861 | { | |
3862 | wxString token = tok.GetNextToken(); | |
3ca6a5f0 BP |
3863 | if ( !token ) |
3864 | continue; | |
cd0b1709 VZ |
3865 | |
3866 | // is it a number? | |
3867 | unsigned long val; | |
fde5a86b | 3868 | if ( token.ToULong(&val) ) |
cd0b1709 VZ |
3869 | { |
3870 | // guess what this number is | |
3871 | ||
68379eaf WS |
3872 | bool isDay = false, |
3873 | isMonth = false, | |
3874 | isYear = false; | |
3ca6a5f0 BP |
3875 | |
3876 | if ( !haveMon && val > 0 && val <= 12 ) | |
cd0b1709 | 3877 | { |
3ca6a5f0 | 3878 | // assume it is month |
68379eaf | 3879 | isMonth = true; |
3ca6a5f0 BP |
3880 | } |
3881 | else // not the month | |
3882 | { | |
560e2916 | 3883 | if ( haveDay ) |
cd0b1709 | 3884 | { |
560e2916 | 3885 | // this can only be the year |
68379eaf | 3886 | isYear = true; |
cd0b1709 | 3887 | } |
560e2916 | 3888 | else // may be either day or year |
cd0b1709 | 3889 | { |
eca0692c VZ |
3890 | // use a leap year if we don't have the year yet to allow |
3891 | // dates like 2/29/1976 which would be rejected otherwise | |
6a27c749 | 3892 | wxDateTime_t max_days = (wxDateTime_t)( |
42841dfc | 3893 | haveMon |
eca0692c | 3894 | ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon) |
42841dfc WS |
3895 | : 31 |
3896 | ); | |
560e2916 VZ |
3897 | |
3898 | // can it be day? | |
6a27c749 | 3899 | if ( (val == 0) || (val > (unsigned long)max_days) ) |
560e2916 VZ |
3900 | { |
3901 | // no | |
68379eaf | 3902 | isYear = true; |
560e2916 VZ |
3903 | } |
3904 | else // yes, suppose it's the day | |
3905 | { | |
68379eaf | 3906 | isDay = true; |
560e2916 | 3907 | } |
cd0b1709 VZ |
3908 | } |
3909 | } | |
3910 | ||
cd0b1709 VZ |
3911 | if ( isYear ) |
3912 | { | |
3913 | if ( haveYear ) | |
cd0b1709 | 3914 | break; |
cd0b1709 | 3915 | |
68379eaf | 3916 | haveYear = true; |
cd0b1709 | 3917 | |
479cd5de | 3918 | year = (wxDateTime_t)val; |
cd0b1709 | 3919 | } |
3ca6a5f0 | 3920 | else if ( isDay ) |
cd0b1709 | 3921 | { |
3ca6a5f0 | 3922 | if ( haveDay ) |
cd0b1709 | 3923 | break; |
cd0b1709 | 3924 | |
68379eaf | 3925 | haveDay = true; |
cd0b1709 | 3926 | |
3ca6a5f0 | 3927 | day = (wxDateTime_t)val; |
cd0b1709 | 3928 | } |
3ca6a5f0 | 3929 | else if ( isMonth ) |
cd0b1709 | 3930 | { |
68379eaf | 3931 | haveMon = true; |
cd0b1709 | 3932 | |
3ca6a5f0 | 3933 | mon = (Month)(val - 1); |
cd0b1709 VZ |
3934 | } |
3935 | } | |
3936 | else // not a number | |
3937 | { | |
f6bcfd97 BP |
3938 | // be careful not to overwrite the current mon value |
3939 | Month mon2 = GetMonthFromName(token, Name_Full | Name_Abbr); | |
3940 | if ( mon2 != Inv_Month ) | |
cd0b1709 VZ |
3941 | { |
3942 | // it's a month | |
3943 | if ( haveMon ) | |
3944 | { | |
6411a32c VZ |
3945 | // but we already have a month - maybe we guessed wrong? |
3946 | if ( !haveDay ) | |
3947 | { | |
f5cd9787 | 3948 | // no need to check in month range as always < 12, but |
6411a32c | 3949 | // the days are counted from 1 unlike the months |
42841dfc | 3950 | day = (wxDateTime_t)(mon + 1); |
68379eaf | 3951 | haveDay = true; |
6411a32c VZ |
3952 | } |
3953 | else | |
3954 | { | |
3955 | // could possible be the year (doesn't the year come | |
3956 | // before the month in the japanese format?) (FIXME) | |
3957 | break; | |
f5cd9787 | 3958 | } |
cd0b1709 VZ |
3959 | } |
3960 | ||
f6bcfd97 BP |
3961 | mon = mon2; |
3962 | ||
68379eaf | 3963 | haveMon = true; |
cd0b1709 | 3964 | } |
6411a32c | 3965 | else // not a valid month name |
cd0b1709 | 3966 | { |
f0f951fa | 3967 | wday = GetWeekDayFromName(token, Name_Full | Name_Abbr); |
cd0b1709 VZ |
3968 | if ( wday != Inv_WeekDay ) |
3969 | { | |
3970 | // a week day | |
3971 | if ( haveWDay ) | |
3972 | { | |
3973 | break; | |
3974 | } | |
3975 | ||
68379eaf | 3976 | haveWDay = true; |
cd0b1709 | 3977 | } |
6411a32c | 3978 | else // not a valid weekday name |
cd0b1709 VZ |
3979 | { |
3980 | // try the ordinals | |
3981 | static const wxChar *ordinals[] = | |
3982 | { | |
3983 | wxTRANSLATE("first"), | |
3984 | wxTRANSLATE("second"), | |
3985 | wxTRANSLATE("third"), | |
3986 | wxTRANSLATE("fourth"), | |
3987 | wxTRANSLATE("fifth"), | |
3988 | wxTRANSLATE("sixth"), | |
3989 | wxTRANSLATE("seventh"), | |
3990 | wxTRANSLATE("eighth"), | |
3991 | wxTRANSLATE("ninth"), | |
3992 | wxTRANSLATE("tenth"), | |
3993 | wxTRANSLATE("eleventh"), | |
3994 | wxTRANSLATE("twelfth"), | |
3995 | wxTRANSLATE("thirteenth"), | |
3996 | wxTRANSLATE("fourteenth"), | |
3997 | wxTRANSLATE("fifteenth"), | |
3998 | wxTRANSLATE("sixteenth"), | |
3999 | wxTRANSLATE("seventeenth"), | |
4000 | wxTRANSLATE("eighteenth"), | |
4001 | wxTRANSLATE("nineteenth"), | |
4002 | wxTRANSLATE("twentieth"), | |
4003 | // that's enough - otherwise we'd have problems with | |
6411a32c | 4004 | // composite (or not) ordinals |
cd0b1709 VZ |
4005 | }; |
4006 | ||
4007 | size_t n; | |
4008 | for ( n = 0; n < WXSIZEOF(ordinals); n++ ) | |
4009 | { | |
4010 | if ( token.CmpNoCase(ordinals[n]) == 0 ) | |
4011 | { | |
4012 | break; | |
4013 | } | |
4014 | } | |
4015 | ||
4016 | if ( n == WXSIZEOF(ordinals) ) | |
4017 | { | |
4018 | // stop here - something unknown | |
4019 | break; | |
4020 | } | |
4021 | ||
4022 | // it's a day | |
4023 | if ( haveDay ) | |
4024 | { | |
4025 | // don't try anything here (as in case of numeric day | |
4026 | // above) - the symbolic day spec should always | |
4027 | // precede the month/year | |
4028 | break; | |
4029 | } | |
4030 | ||
68379eaf | 4031 | haveDay = true; |
cd0b1709 | 4032 | |
33ac7e6f | 4033 | day = (wxDateTime_t)(n + 1); |
cd0b1709 VZ |
4034 | } |
4035 | } | |
4036 | } | |
f6bcfd97 BP |
4037 | |
4038 | nPosCur = tok.GetPosition(); | |
cd0b1709 VZ |
4039 | } |
4040 | ||
4041 | // either no more tokens or the scan was stopped by something we couldn't | |
4042 | // parse - in any case, see if we can construct a date from what we have | |
4043 | if ( !haveDay && !haveWDay ) | |
4044 | { | |
f6bcfd97 | 4045 | wxLogDebug(_T("ParseDate: no day, no weekday hence no date.")); |
cd0b1709 | 4046 | |
eca0692c | 4047 | return NULL; |
cd0b1709 VZ |
4048 | } |
4049 | ||
4050 | if ( haveWDay && (haveMon || haveYear || haveDay) && | |
f6bcfd97 | 4051 | !(haveDay && haveMon && haveYear) ) |
cd0b1709 VZ |
4052 | { |
4053 | // without adjectives (which we don't support here) the week day only | |
4054 | // makes sense completely separately or with the full date | |
4055 | // specification (what would "Wed 1999" mean?) | |
eca0692c | 4056 | return NULL; |
cd0b1709 VZ |
4057 | } |
4058 | ||
f6bcfd97 BP |
4059 | if ( !haveWDay && haveYear && !(haveDay && haveMon) ) |
4060 | { | |
4061 | // may be we have month and day instead of day and year? | |
4062 | if ( haveDay && !haveMon ) | |
4063 | { | |
4064 | if ( day <= 12 ) | |
4065 | { | |
4066 | // exchange day and month | |
4067 | mon = (wxDateTime::Month)(day - 1); | |
4068 | ||
4069 | // we're in the current year then | |
196be0f1 | 4070 | if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) ) |
f6bcfd97 | 4071 | { |
42841dfc | 4072 | day = (wxDateTime_t)year; |
f6bcfd97 | 4073 | |
68379eaf WS |
4074 | haveMon = true; |
4075 | haveYear = false; | |
f6bcfd97 | 4076 | } |
68379eaf | 4077 | //else: no, can't exchange, leave haveMon == false |
f6bcfd97 BP |
4078 | } |
4079 | } | |
4080 | ||
4081 | if ( !haveMon ) | |
4082 | { | |
4083 | // if we give the year, month and day must be given too | |
4084 | wxLogDebug(_T("ParseDate: day and month should be specified if year is.")); | |
4085 | ||
eca0692c | 4086 | return NULL; |
f6bcfd97 BP |
4087 | } |
4088 | } | |
4089 | ||
cd0b1709 VZ |
4090 | if ( !haveMon ) |
4091 | { | |
4092 | mon = GetCurrentMonth(); | |
4093 | } | |
4094 | ||
4095 | if ( !haveYear ) | |
4096 | { | |
4097 | year = GetCurrentYear(); | |
4098 | } | |
4099 | ||
4100 | if ( haveDay ) | |
4101 | { | |
eca0692c VZ |
4102 | // normally we check the day above but the check is optimistic in case |
4103 | // we find the day before its month/year so we have to redo it now | |
4104 | if ( day > GetNumOfDaysInMonth(year, mon) ) | |
4105 | return NULL; | |
4106 | ||
cd0b1709 VZ |
4107 | Set(day, mon, year); |
4108 | ||
4109 | if ( haveWDay ) | |
4110 | { | |
4111 | // check that it is really the same | |
4112 | if ( GetWeekDay() != wday ) | |
4113 | { | |
4114 | // inconsistency detected | |
f6bcfd97 BP |
4115 | wxLogDebug(_T("ParseDate: inconsistent day/weekday.")); |
4116 | ||
cd0b1709 VZ |
4117 | return (wxChar *)NULL; |
4118 | } | |
4119 | } | |
4120 | } | |
4121 | else // haveWDay | |
4122 | { | |
4123 | *this = Today(); | |
4124 | ||
4125 | SetToWeekDayInSameWeek(wday); | |
4126 | } | |
4127 | ||
f6bcfd97 BP |
4128 | // return the pointer to the first unparsed char |
4129 | p += nPosCur; | |
4130 | if ( nPosCur && wxStrchr(dateDelimiters, *(p - 1)) ) | |
4131 | { | |
4132 | // if we couldn't parse the token after the delimiter, put back the | |
4133 | // delimiter as well | |
4134 | p--; | |
4135 | } | |
4136 | ||
4137 | return p; | |
cd0b1709 VZ |
4138 | } |
4139 | ||
4140 | const wxChar *wxDateTime::ParseTime(const wxChar *time) | |
4141 | { | |
4142 | wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
4143 | ||
f0f951fa VZ |
4144 | // first try some extra things |
4145 | static const struct | |
4146 | { | |
4147 | const wxChar *name; | |
4148 | wxDateTime_t hour; | |
4149 | } stdTimes[] = | |
4150 | { | |
4151 | { wxTRANSLATE("noon"), 12 }, | |
4152 | { wxTRANSLATE("midnight"), 00 }, | |
4153 | // anything else? | |
4154 | }; | |
cd0b1709 | 4155 | |
f0f951fa VZ |
4156 | for ( size_t n = 0; n < WXSIZEOF(stdTimes); n++ ) |
4157 | { | |
4158 | wxString timeString = wxGetTranslation(stdTimes[n].name); | |
4159 | size_t len = timeString.length(); | |
4160 | if ( timeString.CmpNoCase(wxString(time, len)) == 0 ) | |
4161 | { | |
4ded51f2 CE |
4162 | // casts required by DigitalMars |
4163 | Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0)); | |
f0f951fa VZ |
4164 | |
4165 | return time + len; | |
4166 | } | |
4167 | } | |
4168 | ||
c7f9a482 VZ |
4169 | // try all time formats we may think about in the order from longest to |
4170 | // shortest | |
4171 | ||
4172 | // 12hour with AM/PM? | |
4173 | const wxChar *result = ParseFormat(time, _T("%I:%M:%S %p")); | |
4174 | ||
f0f951fa VZ |
4175 | if ( !result ) |
4176 | { | |
4177 | // normally, it's the same, but why not try it? | |
4178 | result = ParseFormat(time, _T("%H:%M:%S")); | |
4179 | } | |
4180 | ||
4181 | if ( !result ) | |
4182 | { | |
c7f9a482 VZ |
4183 | // 12hour with AM/PM but without seconds? |
4184 | result = ParseFormat(time, _T("%I:%M %p")); | |
f0f951fa VZ |
4185 | } |
4186 | ||
4187 | if ( !result ) | |
4188 | { | |
4189 | // without seconds? | |
4190 | result = ParseFormat(time, _T("%H:%M")); | |
4191 | } | |
4192 | ||
4193 | if ( !result ) | |
4194 | { | |
c7f9a482 VZ |
4195 | // just the hour and AM/PM? |
4196 | result = ParseFormat(time, _T("%I %p")); | |
f0f951fa VZ |
4197 | } |
4198 | ||
4199 | if ( !result ) | |
4200 | { | |
4201 | // just the hour? | |
4202 | result = ParseFormat(time, _T("%H")); | |
4203 | } | |
4204 | ||
4205 | if ( !result ) | |
4206 | { | |
c7f9a482 VZ |
4207 | // parse the standard format: normally it is one of the formats above |
4208 | // but it may be set to something completely different by the user | |
4209 | result = ParseFormat(time, _T("%X")); | |
f0f951fa VZ |
4210 | } |
4211 | ||
4212 | // TODO: parse timezones | |
4213 | ||
4214 | return result; | |
cd0b1709 VZ |
4215 | } |
4216 | ||
4f6aed9c VZ |
4217 | // ---------------------------------------------------------------------------- |
4218 | // Workdays and holidays support | |
4219 | // ---------------------------------------------------------------------------- | |
4220 | ||
4221 | bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const | |
4222 | { | |
4223 | return !wxDateTimeHolidayAuthority::IsHoliday(*this); | |
4224 | } | |
4225 | ||
26364344 WS |
4226 | // ============================================================================ |
4227 | // wxDateSpan | |
4228 | // ============================================================================ | |
4229 | ||
4230 | wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds) | |
4231 | { | |
4232 | wxDateSpan ds1(ds); | |
4233 | return ds1.Multiply(n); | |
4234 | } | |
4235 | ||
fcc3d7cb VZ |
4236 | // ============================================================================ |
4237 | // wxTimeSpan | |
4238 | // ============================================================================ | |
4239 | ||
26364344 WS |
4240 | wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts) |
4241 | { | |
4242 | return wxTimeSpan(ts).Multiply(n); | |
4243 | } | |
4244 | ||
033400eb VZ |
4245 | // this enum is only used in wxTimeSpan::Format() below but we can't declare |
4246 | // it locally to the method as it provokes an internal compiler error in egcs | |
4247 | // 2.91.60 when building with -O2 | |
4248 | enum TimeSpanPart | |
4249 | { | |
4250 | Part_Week, | |
4251 | Part_Day, | |
4252 | Part_Hour, | |
4253 | Part_Min, | |
4254 | Part_Sec, | |
4255 | Part_MSec | |
4256 | }; | |
4257 | ||
e6ec579c VZ |
4258 | // not all strftime(3) format specifiers make sense here because, for example, |
4259 | // a time span doesn't have a year nor a timezone | |
4260 | // | |
4261 | // Here are the ones which are supported (all of them are supported by strftime | |
4262 | // as well): | |
4263 | // %H hour in 24 hour format | |
4264 | // %M minute (00 - 59) | |
4265 | // %S second (00 - 59) | |
4266 | // %% percent sign | |
4267 | // | |
4268 | // Also, for MFC CTimeSpan compatibility, we support | |
4269 | // %D number of days | |
4270 | // | |
4271 | // And, to be better than MFC :-), we also have | |
4272 | // %E number of wEeks | |
4273 | // %l milliseconds (000 - 999) | |
12e82477 | 4274 | wxString wxTimeSpan::Format(const wxString& format) const |
fcc3d7cb | 4275 | { |
12e82477 VS |
4276 | wxCHECK_MSG( !format.empty(), wxEmptyString, |
4277 | _T("NULL format in wxTimeSpan::Format") ); | |
fcc3d7cb VZ |
4278 | |
4279 | wxString str; | |
12e82477 | 4280 | str.Alloc(format.length()); |
e6ec579c | 4281 | |
df05cdc5 VZ |
4282 | // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */) |
4283 | // | |
4284 | // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the | |
4285 | // question is what should ts.Format("%S") do? The code here returns "3273" | |
4286 | // in this case (i.e. the total number of seconds, not just seconds % 60) | |
4287 | // because, for me, this call means "give me entire time interval in | |
4288 | // seconds" and not "give me the seconds part of the time interval" | |
4289 | // | |
4290 | // If we agree that it should behave like this, it is clear that the | |
4291 | // interpretation of each format specifier depends on the presence of the | |
4292 | // other format specs in the string: if there was "%H" before "%M", we | |
4293 | // should use GetMinutes() % 60, otherwise just GetMinutes() &c | |
4294 | ||
4295 | // we remember the most important unit found so far | |
033400eb | 4296 | TimeSpanPart partBiggest = Part_MSec; |
df05cdc5 | 4297 | |
12e82477 | 4298 | for ( wxString::const_iterator pch = format.begin(); pch != format.end(); ++pch ) |
e6ec579c VZ |
4299 | { |
4300 | wxChar ch = *pch; | |
4301 | ||
f6bcfd97 | 4302 | if ( ch == _T('%') ) |
e6ec579c | 4303 | { |
df05cdc5 | 4304 | // the start of the format specification of the printf() below |
e566ccf1 | 4305 | wxString fmtPrefix(_T('%')); |
df05cdc5 VZ |
4306 | |
4307 | // the number | |
4308 | long n; | |
e6ec579c | 4309 | |
e566ccf1 VZ |
4310 | // the number of digits for the format string, 0 if unused |
4311 | unsigned digits = 0; | |
4312 | ||
f6bcfd97 | 4313 | ch = *++pch; // get the format spec char |
e6ec579c VZ |
4314 | switch ( ch ) |
4315 | { | |
4316 | default: | |
4317 | wxFAIL_MSG( _T("invalid format character") ); | |
4318 | // fall through | |
4319 | ||
f6bcfd97 | 4320 | case _T('%'): |
df05cdc5 VZ |
4321 | str += ch; |
4322 | ||
4323 | // skip the part below switch | |
4324 | continue; | |
e6ec579c | 4325 | |
f6bcfd97 | 4326 | case _T('D'): |
df05cdc5 VZ |
4327 | n = GetDays(); |
4328 | if ( partBiggest < Part_Day ) | |
4329 | { | |
4330 | n %= DAYS_PER_WEEK; | |
4331 | } | |
4332 | else | |
4333 | { | |
4334 | partBiggest = Part_Day; | |
4335 | } | |
e6ec579c VZ |
4336 | break; |
4337 | ||
f6bcfd97 | 4338 | case _T('E'): |
df05cdc5 VZ |
4339 | partBiggest = Part_Week; |
4340 | n = GetWeeks(); | |
e6ec579c VZ |
4341 | break; |
4342 | ||
f6bcfd97 | 4343 | case _T('H'): |
df05cdc5 VZ |
4344 | n = GetHours(); |
4345 | if ( partBiggest < Part_Hour ) | |
4346 | { | |
e566ccf1 VZ |
4347 | if ( n < 0 ) |
4348 | { | |
4349 | // the sign has already been taken into account | |
4350 | // when outputting the biggest part | |
4351 | n = -n; | |
4352 | } | |
4353 | ||
df05cdc5 VZ |
4354 | n %= HOURS_PER_DAY; |
4355 | } | |
4356 | else | |
4357 | { | |
4358 | partBiggest = Part_Hour; | |
4359 | } | |
4360 | ||
e566ccf1 | 4361 | digits = 2; |
e6ec579c VZ |
4362 | break; |
4363 | ||
f6bcfd97 | 4364 | case _T('l'): |
df05cdc5 VZ |
4365 | n = GetMilliseconds().ToLong(); |
4366 | if ( partBiggest < Part_MSec ) | |
4367 | { | |
e566ccf1 VZ |
4368 | if ( n < 0 ) |
4369 | n = -n; | |
4370 | ||
df05cdc5 VZ |
4371 | n %= 1000; |
4372 | } | |
4373 | //else: no need to reset partBiggest to Part_MSec, it is | |
4374 | // the least significant one anyhow | |
4375 | ||
e566ccf1 | 4376 | digits = 3; |
e6ec579c VZ |
4377 | break; |
4378 | ||
f6bcfd97 | 4379 | case _T('M'): |
df05cdc5 VZ |
4380 | n = GetMinutes(); |
4381 | if ( partBiggest < Part_Min ) | |
4382 | { | |
e566ccf1 VZ |
4383 | if ( n < 0 ) |
4384 | n = -n; | |
4385 | ||
df05cdc5 VZ |
4386 | n %= MIN_PER_HOUR; |
4387 | } | |
4388 | else | |
4389 | { | |
4390 | partBiggest = Part_Min; | |
4391 | } | |
4392 | ||
e566ccf1 | 4393 | digits = 2; |
e6ec579c VZ |
4394 | break; |
4395 | ||
f6bcfd97 | 4396 | case _T('S'): |
df05cdc5 VZ |
4397 | n = GetSeconds().ToLong(); |
4398 | if ( partBiggest < Part_Sec ) | |
4399 | { | |
e566ccf1 VZ |
4400 | if ( n < 0 ) |
4401 | n = -n; | |
4402 | ||
df05cdc5 VZ |
4403 | n %= SEC_PER_MIN; |
4404 | } | |
4405 | else | |
4406 | { | |
4407 | partBiggest = Part_Sec; | |
4408 | } | |
4409 | ||
e566ccf1 | 4410 | digits = 2; |
e6ec579c VZ |
4411 | break; |
4412 | } | |
4413 | ||
e566ccf1 VZ |
4414 | if ( digits ) |
4415 | { | |
4416 | // negative numbers need one extra position for '-' display | |
4417 | if ( n < 0 ) | |
4418 | digits++; | |
4419 | ||
4420 | fmtPrefix << _T("0") << digits; | |
4421 | } | |
4422 | ||
df05cdc5 VZ |
4423 | str += wxString::Format(fmtPrefix + _T("ld"), n); |
4424 | } | |
4425 | else | |
4426 | { | |
4427 | // normal character, just copy | |
4428 | str += ch; | |
e6ec579c | 4429 | } |
e6ec579c | 4430 | } |
fcc3d7cb VZ |
4431 | |
4432 | return str; | |
4433 | } | |
4f6aed9c VZ |
4434 | |
4435 | // ============================================================================ | |
4436 | // wxDateTimeHolidayAuthority and related classes | |
4437 | // ============================================================================ | |
4438 | ||
4439 | #include "wx/arrimpl.cpp" | |
4440 | ||
4115960d | 4441 | WX_DEFINE_OBJARRAY(wxDateTimeArray) |
4f6aed9c VZ |
4442 | |
4443 | static int wxCMPFUNC_CONV | |
4444 | wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second) | |
4445 | { | |
4446 | wxDateTime dt1 = **first, | |
4447 | dt2 = **second; | |
4448 | ||
4449 | return dt1 == dt2 ? 0 : dt1 < dt2 ? -1 : +1; | |
4450 | } | |
4451 | ||
4452 | // ---------------------------------------------------------------------------- | |
4453 | // wxDateTimeHolidayAuthority | |
4454 | // ---------------------------------------------------------------------------- | |
4455 | ||
4456 | wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities; | |
4457 | ||
4458 | /* static */ | |
4459 | bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt) | |
4460 | { | |
df5168c4 | 4461 | size_t count = ms_authorities.size(); |
4f6aed9c VZ |
4462 | for ( size_t n = 0; n < count; n++ ) |
4463 | { | |
4464 | if ( ms_authorities[n]->DoIsHoliday(dt) ) | |
4465 | { | |
68379eaf | 4466 | return true; |
4f6aed9c VZ |
4467 | } |
4468 | } | |
4469 | ||
68379eaf | 4470 | return false; |
4f6aed9c VZ |
4471 | } |
4472 | ||
4473 | /* static */ | |
4474 | size_t | |
4475 | wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart, | |
4476 | const wxDateTime& dtEnd, | |
4477 | wxDateTimeArray& holidays) | |
4478 | { | |
4479 | wxDateTimeArray hol; | |
4480 | ||
df5168c4 | 4481 | holidays.Clear(); |
4f6aed9c | 4482 | |
7a7bd38a VZ |
4483 | const size_t countAuth = ms_authorities.size(); |
4484 | for ( size_t nAuth = 0; nAuth < countAuth; nAuth++ ) | |
4f6aed9c | 4485 | { |
6dc6fda6 | 4486 | ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol); |
4f6aed9c VZ |
4487 | |
4488 | WX_APPEND_ARRAY(holidays, hol); | |
4489 | } | |
4490 | ||
4491 | holidays.Sort(wxDateTimeCompareFunc); | |
4492 | ||
df5168c4 | 4493 | return holidays.size(); |
4f6aed9c VZ |
4494 | } |
4495 | ||
4496 | /* static */ | |
4497 | void wxDateTimeHolidayAuthority::ClearAllAuthorities() | |
4498 | { | |
4499 | WX_CLEAR_ARRAY(ms_authorities); | |
4500 | } | |
4501 | ||
4502 | /* static */ | |
4503 | void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth) | |
4504 | { | |
df5168c4 | 4505 | ms_authorities.push_back(auth); |
4f6aed9c VZ |
4506 | } |
4507 | ||
5e233068 WS |
4508 | wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority() |
4509 | { | |
4510 | // required here for Darwin | |
4511 | } | |
4512 | ||
4f6aed9c VZ |
4513 | // ---------------------------------------------------------------------------- |
4514 | // wxDateTimeWorkDays | |
4515 | // ---------------------------------------------------------------------------- | |
4516 | ||
4517 | bool wxDateTimeWorkDays::DoIsHoliday(const wxDateTime& dt) const | |
4518 | { | |
4519 | wxDateTime::WeekDay wd = dt.GetWeekDay(); | |
4520 | ||
4521 | return (wd == wxDateTime::Sun) || (wd == wxDateTime::Sat); | |
4522 | } | |
4523 | ||
4524 | size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart, | |
4525 | const wxDateTime& dtEnd, | |
4526 | wxDateTimeArray& holidays) const | |
4527 | { | |
4528 | if ( dtStart > dtEnd ) | |
4529 | { | |
4530 | wxFAIL_MSG( _T("invalid date range in GetHolidaysInRange") ); | |
4531 | ||
4532 | return 0u; | |
4533 | } | |
4534 | ||
4535 | holidays.Empty(); | |
4536 | ||
4537 | // instead of checking all days, start with the first Sat after dtStart and | |
4538 | // end with the last Sun before dtEnd | |
4539 | wxDateTime dtSatFirst = dtStart.GetNextWeekDay(wxDateTime::Sat), | |
4540 | dtSatLast = dtEnd.GetPrevWeekDay(wxDateTime::Sat), | |
4541 | dtSunFirst = dtStart.GetNextWeekDay(wxDateTime::Sun), | |
4542 | dtSunLast = dtEnd.GetPrevWeekDay(wxDateTime::Sun), | |
4543 | dt; | |
4544 | ||
4545 | for ( dt = dtSatFirst; dt <= dtSatLast; dt += wxDateSpan::Week() ) | |
4546 | { | |
4547 | holidays.Add(dt); | |
4548 | } | |
4549 | ||
4550 | for ( dt = dtSunFirst; dt <= dtSunLast; dt += wxDateSpan::Week() ) | |
4551 | { | |
4552 | holidays.Add(dt); | |
4553 | } | |
4554 | ||
4555 | return holidays.GetCount(); | |
4556 | } | |
3e0b743f | 4557 | |
26364344 WS |
4558 | // ============================================================================ |
4559 | // other helper functions | |
4560 | // ============================================================================ | |
4561 | ||
4562 | // ---------------------------------------------------------------------------- | |
4563 | // iteration helpers: can be used to write a for loop over enum variable like | |
4564 | // this: | |
4565 | // for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) ) | |
4566 | // ---------------------------------------------------------------------------- | |
4567 | ||
4568 | WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m) | |
4569 | { | |
4570 | wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); | |
4571 | ||
4572 | // no wrapping or the for loop above would never end! | |
4573 | m = (wxDateTime::Month)(m + 1); | |
4574 | } | |
4575 | ||
4576 | WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m) | |
4577 | { | |
4578 | wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); | |
4579 | ||
4580 | m = m == wxDateTime::Jan ? wxDateTime::Inv_Month | |
4581 | : (wxDateTime::Month)(m - 1); | |
4582 | } | |
4583 | ||
4584 | WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd) | |
4585 | { | |
4586 | wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); | |
4587 | ||
4588 | // no wrapping or the for loop above would never end! | |
4589 | wd = (wxDateTime::WeekDay)(wd + 1); | |
4590 | } | |
4591 | ||
4592 | WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd) | |
4593 | { | |
4594 | wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); | |
4595 | ||
4596 | wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay | |
4597 | : (wxDateTime::WeekDay)(wd - 1); | |
4598 | } | |
4599 | ||
1e6feb95 | 4600 | #endif // wxUSE_DATETIME |