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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 | ||
e44501a0 VZ |
19 | // TODO: for $DEITY sake, someone please fix the #ifdef __WXWINCE__ everywhere, |
20 | // the proper way to do it is to implement (subset of) wxStrftime() for | |
21 | // CE instead of this horror!! | |
22 | ||
1ef54dcf VZ |
23 | /* |
24 | * Implementation notes: | |
25 | * | |
26 | * 1. the time is stored as a 64bit integer containing the signed number of | |
299fcbfe VZ |
27 | * milliseconds since Jan 1. 1970 (the Unix Epoch) - so it is always |
28 | * expressed in GMT. | |
1ef54dcf VZ |
29 | * |
30 | * 2. the range is thus something about 580 million years, but due to current | |
31 | * algorithms limitations, only dates from Nov 24, 4714BC are handled | |
32 | * | |
33 | * 3. standard ANSI C functions are used to do time calculations whenever | |
34 | * possible, i.e. when the date is in the range Jan 1, 1970 to 2038 | |
35 | * | |
36 | * 4. otherwise, the calculations are done by converting the date to/from JDN | |
37 | * first (the range limitation mentioned above comes from here: the | |
38 | * algorithm used by Scott E. Lee's code only works for positive JDNs, more | |
39 | * or less) | |
40 | * | |
299fcbfe VZ |
41 | * 5. the object constructed for the given DD-MM-YYYY HH:MM:SS corresponds to |
42 | * this moment in local time and may be converted to the object | |
43 | * corresponding to the same date/time in another time zone by using | |
44 | * ToTimezone() | |
45 | * | |
46 | * 6. the conversions to the current (or any other) timezone are done when the | |
47 | * internal time representation is converted to the broken-down one in | |
48 | * wxDateTime::Tm. | |
1ef54dcf | 49 | */ |
0979c962 VZ |
50 | |
51 | // ============================================================================ | |
52 | // declarations | |
53 | // ============================================================================ | |
54 | ||
55 | // ---------------------------------------------------------------------------- | |
56 | // headers | |
57 | // ---------------------------------------------------------------------------- | |
58 | ||
0979c962 VZ |
59 | // For compilers that support precompilation, includes "wx.h". |
60 | #include "wx/wxprec.h" | |
61 | ||
62 | #ifdef __BORLANDC__ | |
63 | #pragma hdrstop | |
64 | #endif | |
65 | ||
1e6feb95 VZ |
66 | #if !defined(wxUSE_DATETIME) || wxUSE_DATETIME |
67 | ||
0979c962 VZ |
68 | #ifndef WX_PRECOMP |
69 | #include "wx/string.h" | |
0979c962 VZ |
70 | #include "wx/log.h" |
71 | #endif // WX_PRECOMP | |
72 | ||
54800df8 | 73 | #include "wx/intl.h" |
fcc3d7cb | 74 | #include "wx/thread.h" |
cd0b1709 | 75 | #include "wx/tokenzr.h" |
7281ab04 | 76 | #include "wx/module.h" |
fcc3d7cb | 77 | |
ff0ea71c GT |
78 | #include <ctype.h> |
79 | ||
64f9c100 VS |
80 | #ifdef __WINDOWS__ |
81 | #include "wx/msw/wrapwin.h" | |
82 | #include <winnls.h> | |
74b99d0f WS |
83 | #ifndef __WXWINCE__ |
84 | #include <locale.h> | |
85 | #endif | |
64f9c100 VS |
86 | #endif |
87 | ||
0979c962 | 88 | #include "wx/datetime.h" |
3422227a | 89 | #include "wx/stopwatch.h" // for wxGetLocalTimeMillis() |
0979c962 | 90 | |
bd4a25bc JS |
91 | const long wxDateTime::TIME_T_FACTOR = 1000l; |
92 | ||
cb73e600 SC |
93 | #if wxUSE_EXTENDED_RTTI |
94 | ||
95 | template<> void wxStringReadValue(const wxString &s , wxDateTime &data ) | |
96 | { | |
97 | data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ; | |
98 | } | |
99 | ||
100 | template<> void wxStringWriteValue(wxString &s , const wxDateTime &data ) | |
101 | { | |
102 | s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ; | |
103 | } | |
104 | ||
8805dbab | 105 | wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringConverter<wxDateTime>) |
cb73e600 SC |
106 | |
107 | #endif | |
108 | ||
109 | // | |
f0f951fa VZ |
110 | // ---------------------------------------------------------------------------- |
111 | // conditional compilation | |
112 | // ---------------------------------------------------------------------------- | |
6de20863 | 113 | |
2423ef22 VZ |
114 | #if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \ |
115 | ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) | |
f0f951fa VZ |
116 | // glibc 2.0.7 strptime() is broken - the following snippet causes it to |
117 | // crash (instead of just failing): | |
118 | // | |
119 | // strncpy(buf, "Tue Dec 21 20:25:40 1999", 128); | |
120 | // strptime(buf, "%x", &tm); | |
121 | // | |
122 | // so don't use it | |
123 | #undef HAVE_STRPTIME | |
124 | #endif // broken strptime() | |
125 | ||
dcbd3762 DE |
126 | #if defined(HAVE_STRPTIME) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS |
127 | // configure detects strptime as linkable because it's in the OS X | |
128 | // System library but MSL headers don't declare it. | |
7347d453 DE |
129 | |
130 | // char *strptime(const char *, const char *, struct tm *); | |
131 | // However, we DON'T want to just provide it here because we would | |
132 | // crash and/or overwrite data when strptime from OS X tries | |
133 | // to fill in MW's struct tm which is two fields shorter (no TZ stuff) | |
134 | // So for now let's just say we don't have strptime | |
135 | #undef HAVE_STRPTIME | |
dcbd3762 DE |
136 | #endif |
137 | ||
31907d03 SC |
138 | #if defined(__MWERKS__) && wxUSE_UNICODE |
139 | #include <wtime.h> | |
140 | #endif | |
141 | ||
0779cc9a | 142 | #if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM) |
6a27c749 WS |
143 | #if defined(__WXPALMOS__) |
144 | #define WX_GMTOFF_IN_TM | |
145 | #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) | |
f0f951fa | 146 | #define WX_TIMEZONE _timezone |
8208e181 | 147 | #elif defined(__MWERKS__) |
f6bcfd97 | 148 | long wxmw_timezone = 28800; |
c4e1b7f2 | 149 | #define WX_TIMEZONE wxmw_timezone |
5283098e | 150 | #elif defined(__DJGPP__) || defined(__WINE__) |
713a0efc | 151 | #include <sys/timeb.h> |
c4e1b7f2 | 152 | #include <values.h> |
713a0efc VS |
153 | static long wxGetTimeZone() |
154 | { | |
c4e1b7f2 VS |
155 | static long timezone = MAXLONG; // invalid timezone |
156 | if (timezone == MAXLONG) | |
157 | { | |
158 | struct timeb tb; | |
159 | ftime(&tb); | |
160 | timezone = tb.timezone; | |
161 | } | |
162 | return timezone; | |
713a0efc VS |
163 | } |
164 | #define WX_TIMEZONE wxGetTimeZone() | |
0779cc9a GD |
165 | #elif defined(__DARWIN__) |
166 | #define WX_GMTOFF_IN_TM | |
f0f951fa VZ |
167 | #else // unknown platform - try timezone |
168 | #define WX_TIMEZONE timezone | |
169 | #endif | |
0779cc9a | 170 | #endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM |
c25a510b | 171 | |
5b52a684 | 172 | #if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__) |
cf44a61c SN |
173 | static wxMutex timeLock; |
174 | #endif | |
175 | ||
176 | #ifndef HAVE_LOCALTIME_R | |
177 | struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp) | |
178 | { | |
179 | #if wxUSE_THREADS && !defined(__WINDOWS__) | |
180 | // No need to waste time with a mutex on windows since it's using | |
181 | // thread local storage for localtime anyway. | |
6f721331 | 182 | wxMutexLocker locker(timeLock); |
cf44a61c SN |
183 | #endif |
184 | memcpy(temp, localtime(ticks), sizeof(struct tm)); | |
185 | return temp; | |
186 | } | |
187 | #endif | |
188 | ||
189 | #ifndef HAVE_GMTIME_R | |
190 | struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) | |
191 | { | |
192 | #if wxUSE_THREADS && !defined(__WINDOWS__) | |
193 | // No need to waste time with a mutex on windows since it's | |
194 | // using thread local storage for gmtime anyway. | |
6f721331 | 195 | wxMutexLocker locker(timeLock); |
cf44a61c SN |
196 | #endif |
197 | memcpy(temp, gmtime(ticks), sizeof(struct tm)); | |
198 | return temp; | |
199 | } | |
200 | #endif | |
201 | ||
384223b3 VZ |
202 | // ---------------------------------------------------------------------------- |
203 | // macros | |
204 | // ---------------------------------------------------------------------------- | |
205 | ||
206 | // debugging helper: just a convenient replacement of wxCHECK() | |
637b7e4f VZ |
207 | #define wxDATETIME_CHECK(expr, msg) \ |
208 | wxCHECK2_MSG(expr, *this = wxInvalidDateTime; return *this, msg) | |
384223b3 | 209 | |
4f6aed9c VZ |
210 | // ---------------------------------------------------------------------------- |
211 | // private classes | |
212 | // ---------------------------------------------------------------------------- | |
213 | ||
214 | class wxDateTimeHolidaysModule : public wxModule | |
215 | { | |
216 | public: | |
217 | virtual bool OnInit() | |
218 | { | |
219 | wxDateTimeHolidayAuthority::AddAuthority(new wxDateTimeWorkDays); | |
220 | ||
68379eaf | 221 | return true; |
4f6aed9c VZ |
222 | } |
223 | ||
224 | virtual void OnExit() | |
225 | { | |
226 | wxDateTimeHolidayAuthority::ClearAllAuthorities(); | |
df5168c4 | 227 | wxDateTimeHolidayAuthority::ms_authorities.clear(); |
4f6aed9c VZ |
228 | } |
229 | ||
230 | private: | |
231 | DECLARE_DYNAMIC_CLASS(wxDateTimeHolidaysModule) | |
232 | }; | |
233 | ||
234 | IMPLEMENT_DYNAMIC_CLASS(wxDateTimeHolidaysModule, wxModule) | |
235 | ||
b76b015e VZ |
236 | // ---------------------------------------------------------------------------- |
237 | // constants | |
238 | // ---------------------------------------------------------------------------- | |
239 | ||
e6ec579c | 240 | // some trivial ones |
fcc3d7cb VZ |
241 | static const int MONTHS_IN_YEAR = 12; |
242 | ||
df05cdc5 VZ |
243 | static const int SEC_PER_MIN = 60; |
244 | ||
245 | static const int MIN_PER_HOUR = 60; | |
246 | ||
247 | static const int HOURS_PER_DAY = 24; | |
fcc3d7cb | 248 | |
e6ec579c VZ |
249 | static const long SECONDS_PER_DAY = 86400l; |
250 | ||
df05cdc5 VZ |
251 | static const int DAYS_PER_WEEK = 7; |
252 | ||
e6ec579c VZ |
253 | static const long MILLISECONDS_PER_DAY = 86400000l; |
254 | ||
255 | // this is the integral part of JDN of the midnight of Jan 1, 1970 | |
256 | // (i.e. JDN(Jan 1, 1970) = 2440587.5) | |
cd0b1709 | 257 | static const long EPOCH_JDN = 2440587l; |
b76b015e | 258 | |
9ffaedfc VZ |
259 | // used only in asserts |
260 | #ifdef __WXDEBUG__ | |
1ef54dcf VZ |
261 | // the date of JDN -0.5 (as we don't work with fractional parts, this is the |
262 | // reference date for us) is Nov 24, 4714BC | |
263 | static const int JDN_0_YEAR = -4713; | |
264 | static const int JDN_0_MONTH = wxDateTime::Nov; | |
265 | static const int JDN_0_DAY = 24; | |
9ffaedfc | 266 | #endif // __WXDEBUG__ |
1ef54dcf VZ |
267 | |
268 | // the constants used for JDN calculations | |
cd0b1709 VZ |
269 | static const long JDN_OFFSET = 32046l; |
270 | static const long DAYS_PER_5_MONTHS = 153l; | |
271 | static const long DAYS_PER_4_YEARS = 1461l; | |
272 | static const long DAYS_PER_400_YEARS = 146097l; | |
1ef54dcf | 273 | |
f0f951fa VZ |
274 | // this array contains the cumulated number of days in all previous months for |
275 | // normal and leap years | |
276 | static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] = | |
277 | { | |
278 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }, | |
279 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 } | |
280 | }; | |
281 | ||
fcc3d7cb | 282 | // ---------------------------------------------------------------------------- |
2ef31e80 VZ |
283 | // global data |
284 | // ---------------------------------------------------------------------------- | |
285 | ||
1aaf88d2 WS |
286 | const wxChar * wxDefaultDateTimeFormat = wxT("%c"); |
287 | const wxChar * wxDefaultTimeSpanFormat = wxT("%H:%M:%S"); | |
288 | ||
384223b3 VZ |
289 | // in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to |
290 | // indicate an invalid wxDateTime object | |
56d0c5a6 | 291 | const wxDateTime wxDefaultDateTime; |
2ef31e80 VZ |
292 | |
293 | wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown; | |
294 | ||
b76b015e VZ |
295 | // ---------------------------------------------------------------------------- |
296 | // private functions | |
297 | // ---------------------------------------------------------------------------- | |
298 | ||
4f6aed9c VZ |
299 | // debugger helper: shows what the date really is |
300 | #ifdef __WXDEBUG__ | |
301 | extern const wxChar *wxDumpDate(const wxDateTime* dt) | |
302 | { | |
0de868d9 | 303 | static wxChar buf[128]; |
4f6aed9c VZ |
304 | |
305 | wxStrcpy(buf, dt->Format(_T("%Y-%m-%d (%a) %H:%M:%S"))); | |
306 | ||
307 | return buf; | |
308 | } | |
309 | #endif // Debug | |
310 | ||
fcc3d7cb VZ |
311 | // get the number of days in the given month of the given year |
312 | static inline | |
313 | wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month) | |
314 | { | |
e6ec579c VZ |
315 | // the number of days in month in Julian/Gregorian calendar: the first line |
316 | // is for normal years, the second one is for the leap ones | |
317 | static wxDateTime::wxDateTime_t daysInMonth[2][MONTHS_IN_YEAR] = | |
318 | { | |
319 | { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, | |
320 | { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } | |
321 | }; | |
322 | ||
323 | return daysInMonth[wxDateTime::IsLeapYear(year)][month]; | |
fcc3d7cb VZ |
324 | } |
325 | ||
c5432233 VZ |
326 | // returns the time zone in the C sense, i.e. the difference UTC - local |
327 | // (in seconds) | |
fcc3d7cb VZ |
328 | static int GetTimeZone() |
329 | { | |
51485b76 | 330 | #ifdef WX_GMTOFF_IN_TM |
68379eaf WS |
331 | // set to true when the timezone is set |
332 | static bool s_timezoneSet = false; | |
0779cc9a | 333 | static long gmtoffset = LONG_MAX; // invalid timezone |
c5432233 | 334 | |
a452689b | 335 | // ensure that the timezone variable is set by calling wxLocaltime_r |
fcc3d7cb VZ |
336 | if ( !s_timezoneSet ) |
337 | { | |
a452689b SN |
338 | // just call wxLocaltime_r() instead of figuring out whether this |
339 | // system supports tzset(), _tzset() or something else | |
c5432233 | 340 | time_t t = 0; |
0779cc9a | 341 | struct tm *tm; |
a452689b | 342 | struct tm tmstruct; |
fcc3d7cb | 343 | |
a452689b | 344 | tm = wxLocaltime_r(&t, &tmstruct); |
68379eaf | 345 | s_timezoneSet = true; |
c5432233 | 346 | |
c5432233 VZ |
347 | // note that GMT offset is the opposite of time zone and so to return |
348 | // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM | |
349 | // cases we have to negate it | |
350 | gmtoffset = -tm->tm_gmtoff; | |
fcc3d7cb VZ |
351 | } |
352 | ||
0779cc9a | 353 | return (int)gmtoffset; |
51485b76 | 354 | #else // !WX_GMTOFF_IN_TM |
6de20863 | 355 | return (int)WX_TIMEZONE; |
51485b76 | 356 | #endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM |
fcc3d7cb VZ |
357 | } |
358 | ||
e6ec579c | 359 | // return the integral part of the JDN for the midnight of the given date (to |
1ef54dcf VZ |
360 | // get the real JDN you need to add 0.5, this is, in fact, JDN of the |
361 | // noon of the previous day) | |
e6ec579c VZ |
362 | static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, |
363 | wxDateTime::Month mon, | |
364 | int year) | |
365 | { | |
1ef54dcf VZ |
366 | // CREDIT: code below is by Scott E. Lee (but bugs are mine) |
367 | ||
368 | // check the date validity | |
369 | wxASSERT_MSG( | |
370 | (year > JDN_0_YEAR) || | |
371 | ((year == JDN_0_YEAR) && (mon > JDN_0_MONTH)) || | |
372 | ((year == JDN_0_YEAR) && (mon == JDN_0_MONTH) && (day >= JDN_0_DAY)), | |
373 | _T("date out of range - can't convert to JDN") | |
374 | ); | |
375 | ||
376 | // make the year positive to avoid problems with negative numbers division | |
377 | year += 4800; | |
378 | ||
379 | // months are counted from March here | |
380 | int month; | |
381 | if ( mon >= wxDateTime::Mar ) | |
e6ec579c | 382 | { |
1ef54dcf | 383 | month = mon - 2; |
e6ec579c | 384 | } |
1ef54dcf | 385 | else |
e6ec579c | 386 | { |
1ef54dcf VZ |
387 | month = mon + 10; |
388 | year--; | |
389 | } | |
e6ec579c | 390 | |
1ef54dcf VZ |
391 | // now we can simply add all the contributions together |
392 | return ((year / 100) * DAYS_PER_400_YEARS) / 4 | |
393 | + ((year % 100) * DAYS_PER_4_YEARS) / 4 | |
394 | + (month * DAYS_PER_5_MONTHS + 2) / 5 | |
395 | + day | |
396 | - JDN_OFFSET; | |
e6ec579c VZ |
397 | } |
398 | ||
74b99d0f | 399 | #ifndef __WXWINCE__ |
2423ef22 | 400 | // this function is a wrapper around strftime(3) adding error checking |
b76b015e VZ |
401 | static wxString CallStrftime(const wxChar *format, const tm* tm) |
402 | { | |
68ee7c47 | 403 | wxChar buf[4096]; |
594588aa MW |
404 | // Create temp wxString here to work around mingw/cygwin bug 1046059 |
405 | // http://sourceforge.net/tracker/?func=detail&atid=102435&aid=1046059&group_id=2435 | |
406 | wxString s; | |
407 | ||
ba9bbf13 | 408 | if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) ) |
b76b015e | 409 | { |
68ee7c47 | 410 | // buffer is too small? |
b76b015e VZ |
411 | wxFAIL_MSG(_T("strftime() failed")); |
412 | } | |
413 | ||
594588aa MW |
414 | s = buf; |
415 | return s; | |
b76b015e | 416 | } |
74b99d0f | 417 | #endif |
b76b015e | 418 | |
2423ef22 VZ |
419 | #ifdef HAVE_STRPTIME |
420 | ||
f536f005 VZ |
421 | #if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL) |
422 | // configure detected that we had strptime() but not its declaration, | |
423 | // provide it ourselves | |
e2620fda VZ |
424 | extern "C" char *strptime(const char *, const char *, struct tm *); |
425 | #endif | |
426 | ||
2423ef22 VZ |
427 | // Unicode-friendly strptime() wrapper |
428 | static const wxChar * | |
429 | CallStrptime(const wxChar *input, const char *fmt, tm *tm) | |
430 | { | |
431 | // the problem here is that strptime() returns pointer into the string we | |
432 | // passed to it while we're really interested in the pointer into the | |
433 | // original, Unicode, string so we try to transform the pointer back | |
434 | #if wxUSE_UNICODE | |
435 | wxCharBuffer inputMB(wxConvertWX2MB(input)); | |
436 | #else // ASCII | |
437 | const char * const inputMB = input; | |
438 | #endif // Unicode/Ascii | |
439 | ||
440 | const char *result = strptime(inputMB, fmt, tm); | |
441 | if ( !result ) | |
442 | return NULL; | |
443 | ||
444 | #if wxUSE_UNICODE | |
445 | // FIXME: this is wrong in presence of surrogates &c | |
446 | return input + (result - inputMB.data()); | |
447 | #else // ASCII | |
448 | return result; | |
449 | #endif // Unicode/Ascii | |
450 | } | |
451 | ||
452 | #endif // HAVE_STRPTIME | |
453 | ||
2f02cb89 VZ |
454 | // if year and/or month have invalid values, replace them with the current ones |
455 | static void ReplaceDefaultYearMonthWithCurrent(int *year, | |
456 | wxDateTime::Month *month) | |
457 | { | |
458 | struct tm *tmNow = NULL; | |
a452689b | 459 | struct tm tmstruct; |
2f02cb89 VZ |
460 | |
461 | if ( *year == wxDateTime::Inv_Year ) | |
462 | { | |
a452689b | 463 | tmNow = wxDateTime::GetTmNow(&tmstruct); |
2f02cb89 VZ |
464 | |
465 | *year = 1900 + tmNow->tm_year; | |
466 | } | |
467 | ||
468 | if ( *month == wxDateTime::Inv_Month ) | |
469 | { | |
470 | if ( !tmNow ) | |
a452689b | 471 | tmNow = wxDateTime::GetTmNow(&tmstruct); |
2f02cb89 VZ |
472 | |
473 | *month = (wxDateTime::Month)tmNow->tm_mon; | |
474 | } | |
475 | } | |
476 | ||
f0f951fa VZ |
477 | // fll the struct tm with default values |
478 | static void InitTm(struct tm& tm) | |
479 | { | |
480 | // struct tm may have etxra fields (undocumented and with unportable | |
481 | // names) which, nevertheless, must be set to 0 | |
482 | memset(&tm, 0, sizeof(struct tm)); | |
483 | ||
484 | tm.tm_mday = 1; // mday 0 is invalid | |
485 | tm.tm_year = 76; // any valid year | |
486 | tm.tm_isdst = -1; // auto determine | |
487 | } | |
488 | ||
cd0b1709 VZ |
489 | // parsing helpers |
490 | // --------------- | |
491 | ||
492 | // return the month if the string is a month name or Inv_Month otherwise | |
f0f951fa | 493 | static wxDateTime::Month GetMonthFromName(const wxString& name, int flags) |
cd0b1709 VZ |
494 | { |
495 | wxDateTime::Month mon; | |
496 | for ( mon = wxDateTime::Jan; mon < wxDateTime::Inv_Month; wxNextMonth(mon) ) | |
497 | { | |
f0f951fa VZ |
498 | // case-insensitive comparison either one of or with both abbreviated |
499 | // and not versions | |
500 | if ( flags & wxDateTime::Name_Full ) | |
cd0b1709 | 501 | { |
f0f951fa VZ |
502 | if ( name.CmpNoCase(wxDateTime:: |
503 | GetMonthName(mon, wxDateTime::Name_Full)) == 0 ) | |
504 | { | |
505 | break; | |
506 | } | |
507 | } | |
508 | ||
509 | if ( flags & wxDateTime::Name_Abbr ) | |
510 | { | |
511 | if ( name.CmpNoCase(wxDateTime:: | |
512 | GetMonthName(mon, wxDateTime::Name_Abbr)) == 0 ) | |
513 | { | |
514 | break; | |
515 | } | |
cd0b1709 VZ |
516 | } |
517 | } | |
518 | ||
519 | return mon; | |
520 | } | |
521 | ||
522 | // return the weekday if the string is a weekday name or Inv_WeekDay otherwise | |
f0f951fa | 523 | static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags) |
cd0b1709 VZ |
524 | { |
525 | wxDateTime::WeekDay wd; | |
526 | for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) ) | |
527 | { | |
f0f951fa VZ |
528 | // case-insensitive comparison either one of or with both abbreviated |
529 | // and not versions | |
530 | if ( flags & wxDateTime::Name_Full ) | |
cd0b1709 | 531 | { |
f0f951fa VZ |
532 | if ( name.CmpNoCase(wxDateTime:: |
533 | GetWeekDayName(wd, wxDateTime::Name_Full)) == 0 ) | |
534 | { | |
535 | break; | |
536 | } | |
537 | } | |
538 | ||
539 | if ( flags & wxDateTime::Name_Abbr ) | |
540 | { | |
541 | if ( name.CmpNoCase(wxDateTime:: | |
542 | GetWeekDayName(wd, wxDateTime::Name_Abbr)) == 0 ) | |
543 | { | |
544 | break; | |
545 | } | |
cd0b1709 VZ |
546 | } |
547 | } | |
548 | ||
549 | return wd; | |
550 | } | |
551 | ||
a452689b SN |
552 | /* static */ |
553 | struct tm *wxDateTime::GetTmNow(struct tm *tmstruct) | |
554 | { | |
555 | time_t t = GetTimeNow(); | |
556 | return wxLocaltime_r(&t, tmstruct); | |
557 | } | |
558 | ||
f6bcfd97 BP |
559 | // scans all digits (but no more than len) and returns the resulting number |
560 | static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number) | |
f0f951fa | 561 | { |
f6bcfd97 | 562 | size_t n = 1; |
f0f951fa VZ |
563 | wxString s; |
564 | while ( wxIsdigit(*p) ) | |
565 | { | |
566 | s += *p++; | |
f6bcfd97 BP |
567 | |
568 | if ( len && ++n > len ) | |
569 | break; | |
f0f951fa VZ |
570 | } |
571 | ||
bb8a8478 | 572 | return !s.empty() && s.ToULong(number); |
f0f951fa VZ |
573 | } |
574 | ||
575 | // scans all alphabetic characters and returns the resulting string | |
576 | static wxString GetAlphaToken(const wxChar*& p) | |
577 | { | |
578 | wxString s; | |
579 | while ( wxIsalpha(*p) ) | |
580 | { | |
581 | s += *p++; | |
582 | } | |
583 | ||
584 | return s; | |
585 | } | |
586 | ||
0979c962 VZ |
587 | // ============================================================================ |
588 | // implementation of wxDateTime | |
589 | // ============================================================================ | |
590 | ||
b76b015e VZ |
591 | // ---------------------------------------------------------------------------- |
592 | // struct Tm | |
593 | // ---------------------------------------------------------------------------- | |
594 | ||
595 | wxDateTime::Tm::Tm() | |
596 | { | |
597 | year = (wxDateTime_t)wxDateTime::Inv_Year; | |
598 | mon = wxDateTime::Inv_Month; | |
599 | mday = 0; | |
e6ec579c | 600 | hour = min = sec = msec = 0; |
b76b015e VZ |
601 | wday = wxDateTime::Inv_WeekDay; |
602 | } | |
603 | ||
299fcbfe VZ |
604 | wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz) |
605 | : m_tz(tz) | |
b76b015e | 606 | { |
e6ec579c | 607 | msec = 0; |
907173e5 WS |
608 | sec = (wxDateTime::wxDateTime_t)tm.tm_sec; |
609 | min = (wxDateTime::wxDateTime_t)tm.tm_min; | |
610 | hour = (wxDateTime::wxDateTime_t)tm.tm_hour; | |
611 | mday = (wxDateTime::wxDateTime_t)tm.tm_mday; | |
fcc3d7cb | 612 | mon = (wxDateTime::Month)tm.tm_mon; |
b76b015e | 613 | year = 1900 + tm.tm_year; |
bb8a8478 WS |
614 | wday = (wxDateTime::wxDateTime_t)tm.tm_wday; |
615 | yday = (wxDateTime::wxDateTime_t)tm.tm_yday; | |
b76b015e VZ |
616 | } |
617 | ||
618 | bool wxDateTime::Tm::IsValid() const | |
619 | { | |
620 | // we allow for the leap seconds, although we don't use them (yet) | |
fcc3d7cb | 621 | return (year != wxDateTime::Inv_Year) && (mon != wxDateTime::Inv_Month) && |
c5a1681b | 622 | (mday <= GetNumOfDaysInMonth(year, mon)) && |
e6ec579c | 623 | (hour < 24) && (min < 60) && (sec < 62) && (msec < 1000); |
b76b015e VZ |
624 | } |
625 | ||
626 | void wxDateTime::Tm::ComputeWeekDay() | |
627 | { | |
c5a1681b VZ |
628 | // compute the week day from day/month/year: we use the dumbest algorithm |
629 | // possible: just compute our JDN and then use the (simple to derive) | |
630 | // formula: weekday = (JDN + 1.5) % 7 | |
bb8a8478 | 631 | wday = (wxDateTime::wxDateTime_t)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7); |
b76b015e VZ |
632 | } |
633 | ||
e6ec579c | 634 | void wxDateTime::Tm::AddMonths(int monDiff) |
fcc3d7cb VZ |
635 | { |
636 | // normalize the months field | |
637 | while ( monDiff < -mon ) | |
638 | { | |
639 | year--; | |
640 | ||
641 | monDiff += MONTHS_IN_YEAR; | |
642 | } | |
643 | ||
2ef31e80 | 644 | while ( monDiff + mon >= MONTHS_IN_YEAR ) |
fcc3d7cb VZ |
645 | { |
646 | year++; | |
239446b4 VZ |
647 | |
648 | monDiff -= MONTHS_IN_YEAR; | |
fcc3d7cb VZ |
649 | } |
650 | ||
651 | mon = (wxDateTime::Month)(mon + monDiff); | |
652 | ||
e6ec579c | 653 | wxASSERT_MSG( mon >= 0 && mon < MONTHS_IN_YEAR, _T("logic error") ); |
4f6aed9c VZ |
654 | |
655 | // NB: we don't check here that the resulting date is valid, this function | |
656 | // is private and the caller must check it if needed | |
fcc3d7cb VZ |
657 | } |
658 | ||
e6ec579c | 659 | void wxDateTime::Tm::AddDays(int dayDiff) |
fcc3d7cb VZ |
660 | { |
661 | // normalize the days field | |
9d9b7755 | 662 | while ( dayDiff + mday < 1 ) |
fcc3d7cb VZ |
663 | { |
664 | AddMonths(-1); | |
665 | ||
9d9b7755 | 666 | dayDiff += GetNumOfDaysInMonth(year, mon); |
fcc3d7cb VZ |
667 | } |
668 | ||
907173e5 | 669 | mday = (wxDateTime::wxDateTime_t)( mday + dayDiff ); |
fcc3d7cb VZ |
670 | while ( mday > GetNumOfDaysInMonth(year, mon) ) |
671 | { | |
672 | mday -= GetNumOfDaysInMonth(year, mon); | |
673 | ||
674 | AddMonths(1); | |
675 | } | |
676 | ||
677 | wxASSERT_MSG( mday > 0 && mday <= GetNumOfDaysInMonth(year, mon), | |
678 | _T("logic error") ); | |
679 | } | |
680 | ||
681 | // ---------------------------------------------------------------------------- | |
682 | // class TimeZone | |
683 | // ---------------------------------------------------------------------------- | |
684 | ||
685 | wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) | |
686 | { | |
687 | switch ( tz ) | |
688 | { | |
689 | case wxDateTime::Local: | |
299fcbfe VZ |
690 | // get the offset from C RTL: it returns the difference GMT-local |
691 | // while we want to have the offset _from_ GMT, hence the '-' | |
692 | m_offset = -GetTimeZone(); | |
fcc3d7cb VZ |
693 | break; |
694 | ||
695 | case wxDateTime::GMT_12: | |
696 | case wxDateTime::GMT_11: | |
697 | case wxDateTime::GMT_10: | |
698 | case wxDateTime::GMT_9: | |
699 | case wxDateTime::GMT_8: | |
700 | case wxDateTime::GMT_7: | |
701 | case wxDateTime::GMT_6: | |
702 | case wxDateTime::GMT_5: | |
703 | case wxDateTime::GMT_4: | |
704 | case wxDateTime::GMT_3: | |
705 | case wxDateTime::GMT_2: | |
706 | case wxDateTime::GMT_1: | |
299fcbfe | 707 | m_offset = -3600*(wxDateTime::GMT0 - tz); |
fcc3d7cb VZ |
708 | break; |
709 | ||
710 | case wxDateTime::GMT0: | |
711 | case wxDateTime::GMT1: | |
712 | case wxDateTime::GMT2: | |
713 | case wxDateTime::GMT3: | |
714 | case wxDateTime::GMT4: | |
715 | case wxDateTime::GMT5: | |
716 | case wxDateTime::GMT6: | |
717 | case wxDateTime::GMT7: | |
718 | case wxDateTime::GMT8: | |
719 | case wxDateTime::GMT9: | |
720 | case wxDateTime::GMT10: | |
721 | case wxDateTime::GMT11: | |
722 | case wxDateTime::GMT12: | |
299fcbfe | 723 | m_offset = 3600*(tz - wxDateTime::GMT0); |
fcc3d7cb VZ |
724 | break; |
725 | ||
726 | case wxDateTime::A_CST: | |
727 | // Central Standard Time in use in Australia = UTC + 9.5 | |
d26adb9d | 728 | m_offset = 60l*(9*MIN_PER_HOUR + MIN_PER_HOUR/2); |
fcc3d7cb VZ |
729 | break; |
730 | ||
731 | default: | |
732 | wxFAIL_MSG( _T("unknown time zone") ); | |
733 | } | |
734 | } | |
735 | ||
b76b015e VZ |
736 | // ---------------------------------------------------------------------------- |
737 | // static functions | |
738 | // ---------------------------------------------------------------------------- | |
739 | ||
740 | /* static */ | |
741 | bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal) | |
742 | { | |
2f02cb89 VZ |
743 | if ( year == Inv_Year ) |
744 | year = GetCurrentYear(); | |
745 | ||
b76b015e VZ |
746 | if ( cal == Gregorian ) |
747 | { | |
748 | // in Gregorian calendar leap years are those divisible by 4 except | |
749 | // those divisible by 100 unless they're also divisible by 400 | |
750 | // (in some countries, like Russia and Greece, additional corrections | |
751 | // exist, but they won't manifest themselves until 2700) | |
752 | return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)); | |
753 | } | |
754 | else if ( cal == Julian ) | |
755 | { | |
756 | // in Julian calendar the rule is simpler | |
757 | return year % 4 == 0; | |
758 | } | |
759 | else | |
760 | { | |
761 | wxFAIL_MSG(_T("unknown calendar")); | |
762 | ||
68379eaf | 763 | return false; |
b76b015e VZ |
764 | } |
765 | } | |
766 | ||
fcc3d7cb VZ |
767 | /* static */ |
768 | int wxDateTime::GetCentury(int year) | |
769 | { | |
770 | return year > 0 ? year / 100 : year / 100 - 1; | |
771 | } | |
772 | ||
b76b015e VZ |
773 | /* static */ |
774 | int wxDateTime::ConvertYearToBC(int year) | |
775 | { | |
776 | // year 0 is BC 1 | |
777 | return year > 0 ? year : year - 1; | |
778 | } | |
779 | ||
780 | /* static */ | |
781 | int wxDateTime::GetCurrentYear(wxDateTime::Calendar cal) | |
782 | { | |
783 | switch ( cal ) | |
784 | { | |
785 | case Gregorian: | |
786 | return Now().GetYear(); | |
787 | ||
788 | case Julian: | |
789 | wxFAIL_MSG(_T("TODO")); | |
790 | break; | |
791 | ||
792 | default: | |
793 | wxFAIL_MSG(_T("unsupported calendar")); | |
794 | break; | |
795 | } | |
796 | ||
797 | return Inv_Year; | |
798 | } | |
799 | ||
800 | /* static */ | |
801 | wxDateTime::Month wxDateTime::GetCurrentMonth(wxDateTime::Calendar cal) | |
802 | { | |
803 | switch ( cal ) | |
804 | { | |
805 | case Gregorian: | |
806 | return Now().GetMonth(); | |
b76b015e VZ |
807 | |
808 | case Julian: | |
809 | wxFAIL_MSG(_T("TODO")); | |
810 | break; | |
811 | ||
812 | default: | |
813 | wxFAIL_MSG(_T("unsupported calendar")); | |
814 | break; | |
815 | } | |
816 | ||
817 | return Inv_Month; | |
818 | } | |
819 | ||
2f02cb89 VZ |
820 | /* static */ |
821 | wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(int year, Calendar cal) | |
822 | { | |
823 | if ( year == Inv_Year ) | |
824 | { | |
825 | // take the current year if none given | |
826 | year = GetCurrentYear(); | |
827 | } | |
828 | ||
829 | switch ( cal ) | |
830 | { | |
831 | case Gregorian: | |
832 | case Julian: | |
833 | return IsLeapYear(year) ? 366 : 365; | |
2f02cb89 VZ |
834 | |
835 | default: | |
836 | wxFAIL_MSG(_T("unsupported calendar")); | |
837 | break; | |
838 | } | |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
b76b015e VZ |
843 | /* static */ |
844 | wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month, | |
845 | int year, | |
846 | wxDateTime::Calendar cal) | |
847 | { | |
fcc3d7cb | 848 | wxCHECK_MSG( month < MONTHS_IN_YEAR, 0, _T("invalid month") ); |
b76b015e VZ |
849 | |
850 | if ( cal == Gregorian || cal == Julian ) | |
851 | { | |
852 | if ( year == Inv_Year ) | |
853 | { | |
854 | // take the current year if none given | |
855 | year = GetCurrentYear(); | |
856 | } | |
857 | ||
fcc3d7cb | 858 | return GetNumOfDaysInMonth(year, month); |
b76b015e VZ |
859 | } |
860 | else | |
861 | { | |
862 | wxFAIL_MSG(_T("unsupported calendar")); | |
863 | ||
864 | return 0; | |
865 | } | |
866 | } | |
867 | ||
868 | /* static */ | |
f0f951fa VZ |
869 | wxString wxDateTime::GetMonthName(wxDateTime::Month month, |
870 | wxDateTime::NameFlags flags) | |
b76b015e | 871 | { |
525d8583 | 872 | wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") ); |
77b88df2 | 873 | #ifndef __WXWINCE__ |
68ee7c47 VZ |
874 | // notice that we must set all the fields to avoid confusing libc (GNU one |
875 | // gets confused to a crash if we don't do this) | |
cd0b1709 | 876 | tm tm; |
f0f951fa | 877 | InitTm(tm); |
cd0b1709 | 878 | tm.tm_mon = month; |
b76b015e | 879 | |
f0f951fa | 880 | return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm); |
77b88df2 | 881 | #else |
ba9bbf13 WS |
882 | wxString ret; |
883 | switch(month) | |
884 | { | |
885 | case Jan: | |
886 | ret = (flags == Name_Abbr ? wxT("Jan"): wxT("January")); | |
887 | break; | |
888 | case Feb: | |
889 | ret = (flags == Name_Abbr ? wxT("Feb"): wxT("Febuary")); | |
890 | break; | |
891 | case Mar: | |
892 | ret = (flags == Name_Abbr ? wxT("Mar"): wxT("March")); | |
893 | break; | |
894 | case Apr: | |
895 | ret = (flags == Name_Abbr ? wxT("Apr"): wxT("April")); | |
896 | break; | |
897 | case May: | |
898 | ret = (flags == Name_Abbr ? wxT("May"): wxT("May")); | |
899 | break; | |
900 | case Jun: | |
901 | ret = (flags == Name_Abbr ? wxT("Jun"): wxT("June")); | |
902 | break; | |
903 | case Jul: | |
904 | ret = (flags == Name_Abbr ? wxT("Jul"): wxT("July")); | |
905 | break; | |
906 | case Aug: | |
907 | ret = (flags == Name_Abbr ? wxT("Aug"): wxT("August")); | |
908 | break; | |
909 | case Sep: | |
910 | ret = (flags == Name_Abbr ? wxT("Sep"): wxT("September")); | |
911 | break; | |
912 | case Oct: | |
913 | ret = (flags == Name_Abbr ? wxT("Oct"): wxT("October")); | |
914 | break; | |
915 | case Nov: | |
916 | ret = (flags == Name_Abbr ? wxT("Nov"): wxT("November")); | |
917 | break; | |
918 | case Dec: | |
919 | ret = (flags == Name_Abbr ? wxT("Dec"): wxT("December")); | |
920 | break; | |
921 | } | |
922 | return ret; | |
77b88df2 | 923 | #endif |
b76b015e VZ |
924 | } |
925 | ||
926 | /* static */ | |
f0f951fa VZ |
927 | wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, |
928 | wxDateTime::NameFlags flags) | |
b76b015e | 929 | { |
525d8583 | 930 | wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") ); |
77b88df2 | 931 | #ifndef __WXWINCE__ |
2c622d71 VZ |
932 | // take some arbitrary Sunday (but notice that the day should be such that |
933 | // after adding wday to it below we still have a valid date, e.g. don't | |
934 | // take 28 here!) | |
f0f951fa VZ |
935 | tm tm; |
936 | InitTm(tm); | |
2c622d71 | 937 | tm.tm_mday = 21; |
f0f951fa VZ |
938 | tm.tm_mon = Nov; |
939 | tm.tm_year = 99; | |
b76b015e | 940 | |
1ef54dcf | 941 | // and offset it by the number of days needed to get the correct wday |
b76b015e VZ |
942 | tm.tm_mday += wday; |
943 | ||
c5a1681b VZ |
944 | // call mktime() to normalize it... |
945 | (void)mktime(&tm); | |
946 | ||
947 | // ... and call strftime() | |
f0f951fa | 948 | return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm); |
77b88df2 | 949 | #else |
ba9bbf13 WS |
950 | wxString ret; |
951 | switch(wday) | |
952 | { | |
953 | case Sun: | |
954 | ret = (flags == Name_Abbr ? wxT("Sun") : wxT("Sunday")); | |
955 | break; | |
956 | case Mon: | |
957 | ret = (flags == Name_Abbr ? wxT("Mon") : wxT("Monday")); | |
958 | break; | |
959 | case Tue: | |
960 | ret = (flags == Name_Abbr ? wxT("Tue") : wxT("Tuesday")); | |
961 | break; | |
962 | case Wed: | |
963 | ret = (flags == Name_Abbr ? wxT("Wed") : wxT("Wednesday")); | |
964 | break; | |
965 | case Thu: | |
966 | ret = (flags == Name_Abbr ? wxT("Thu") : wxT("Thursday")); | |
967 | break; | |
968 | case Fri: | |
969 | ret = (flags == Name_Abbr ? wxT("Fri") : wxT("Friday")); | |
970 | break; | |
971 | case Sat: | |
972 | ret = (flags == Name_Abbr ? wxT("Sat") : wxT("Saturday")); | |
973 | break; | |
974 | } | |
975 | return ret; | |
77b88df2 JS |
976 | |
977 | #endif | |
f0f951fa VZ |
978 | } |
979 | ||
980 | /* static */ | |
981 | void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) | |
982 | { | |
983 | tm tm; | |
984 | InitTm(tm); | |
653567bb | 985 | wxChar buffer[64]; |
0308fd61 JS |
986 | // @Note: Do not call 'CallStrftime' here! CallStrftime checks the return code |
987 | // and causes an assertion failed if the buffer is to small (which is good) - OR - | |
988 | // if strftime does not return anything because the format string is invalid - OR - | |
989 | // if there are no 'am' / 'pm' tokens defined for the current locale (which is not good). | |
990 | // wxDateTime::ParseTime will try several different formats to parse the time. | |
991 | // As a result, GetAmPmStrings might get called, even if the current locale | |
992 | // does not define any 'am' / 'pm' tokens. In this case, wxStrftime would | |
993 | // assert, even though it is a perfectly legal use. | |
f0f951fa VZ |
994 | if ( am ) |
995 | { | |
10a2749b | 996 | if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) |
0308fd61 JS |
997 | *am = wxString(buffer); |
998 | else | |
999 | *am = wxString(); | |
f0f951fa VZ |
1000 | } |
1001 | if ( pm ) | |
1002 | { | |
1003 | tm.tm_hour = 13; | |
10a2749b | 1004 | if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) |
0308fd61 JS |
1005 | *pm = wxString(buffer); |
1006 | else | |
1007 | *pm = wxString(); | |
f0f951fa | 1008 | } |
b76b015e VZ |
1009 | } |
1010 | ||
239446b4 VZ |
1011 | // ---------------------------------------------------------------------------- |
1012 | // Country stuff: date calculations depend on the country (DST, work days, | |
1013 | // ...), so we need to know which rules to follow. | |
1014 | // ---------------------------------------------------------------------------- | |
1015 | ||
1016 | /* static */ | |
1017 | wxDateTime::Country wxDateTime::GetCountry() | |
1018 | { | |
f0f951fa | 1019 | // TODO use LOCALE_ICOUNTRY setting under Win32 |
77b88df2 | 1020 | #ifndef __WXWINCE__ |
239446b4 VZ |
1021 | if ( ms_country == Country_Unknown ) |
1022 | { | |
1023 | // try to guess from the time zone name | |
1024 | time_t t = time(NULL); | |
a452689b SN |
1025 | struct tm tmstruct; |
1026 | struct tm *tm = wxLocaltime_r(&t, &tmstruct); | |
239446b4 VZ |
1027 | |
1028 | wxString tz = CallStrftime(_T("%Z"), tm); | |
1029 | if ( tz == _T("WET") || tz == _T("WEST") ) | |
1030 | { | |
1031 | ms_country = UK; | |
1032 | } | |
1033 | else if ( tz == _T("CET") || tz == _T("CEST") ) | |
1034 | { | |
1035 | ms_country = Country_EEC; | |
1036 | } | |
1037 | else if ( tz == _T("MSK") || tz == _T("MSD") ) | |
1038 | { | |
1039 | ms_country = Russia; | |
1040 | } | |
1041 | else if ( tz == _T("AST") || tz == _T("ADT") || | |
1042 | tz == _T("EST") || tz == _T("EDT") || | |
1043 | tz == _T("CST") || tz == _T("CDT") || | |
1044 | tz == _T("MST") || tz == _T("MDT") || | |
1045 | tz == _T("PST") || tz == _T("PDT") ) | |
1046 | { | |
1047 | ms_country = USA; | |
1048 | } | |
1049 | else | |
1050 | { | |
1051 | // well, choose a default one | |
1052 | ms_country = USA; | |
1053 | } | |
1054 | } | |
77b88df2 JS |
1055 | #else |
1056 | ms_country = USA; | |
1057 | #endif | |
239446b4 VZ |
1058 | |
1059 | return ms_country; | |
1060 | } | |
1061 | ||
1062 | /* static */ | |
1063 | void wxDateTime::SetCountry(wxDateTime::Country country) | |
1064 | { | |
1065 | ms_country = country; | |
1066 | } | |
1067 | ||
1068 | /* static */ | |
1069 | bool wxDateTime::IsWestEuropeanCountry(Country country) | |
1070 | { | |
1071 | if ( country == Country_Default ) | |
1072 | { | |
1073 | country = GetCountry(); | |
1074 | } | |
1075 | ||
1076 | return (Country_WesternEurope_Start <= country) && | |
1077 | (country <= Country_WesternEurope_End); | |
1078 | } | |
1079 | ||
1080 | // ---------------------------------------------------------------------------- | |
1081 | // DST calculations: we use 3 different rules for the West European countries, | |
1082 | // USA and for the rest of the world. This is undoubtedly false for many | |
1083 | // countries, but I lack the necessary info (and the time to gather it), | |
1084 | // please add the other rules here! | |
1085 | // ---------------------------------------------------------------------------- | |
1086 | ||
1087 | /* static */ | |
1088 | bool wxDateTime::IsDSTApplicable(int year, Country country) | |
1089 | { | |
1090 | if ( year == Inv_Year ) | |
1091 | { | |
1092 | // take the current year if none given | |
1093 | year = GetCurrentYear(); | |
1094 | } | |
1095 | ||
1096 | if ( country == Country_Default ) | |
1097 | { | |
1098 | country = GetCountry(); | |
1099 | } | |
1100 | ||
1101 | switch ( country ) | |
1102 | { | |
1103 | case USA: | |
1104 | case UK: | |
1105 | // DST was first observed in the US and UK during WWI, reused | |
1106 | // during WWII and used again since 1966 | |
1107 | return year >= 1966 || | |
1108 | (year >= 1942 && year <= 1945) || | |
1109 | (year == 1918 || year == 1919); | |
1110 | ||
1111 | default: | |
1112 | // assume that it started after WWII | |
1113 | return year > 1950; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | /* static */ | |
1118 | wxDateTime wxDateTime::GetBeginDST(int year, Country country) | |
1119 | { | |
1120 | if ( year == Inv_Year ) | |
1121 | { | |
1122 | // take the current year if none given | |
1123 | year = GetCurrentYear(); | |
1124 | } | |
1125 | ||
1126 | if ( country == Country_Default ) | |
1127 | { | |
1128 | country = GetCountry(); | |
1129 | } | |
1130 | ||
1131 | if ( !IsDSTApplicable(year, country) ) | |
1132 | { | |
2ef31e80 | 1133 | return wxInvalidDateTime; |
239446b4 VZ |
1134 | } |
1135 | ||
1136 | wxDateTime dt; | |
1137 | ||
1138 | if ( IsWestEuropeanCountry(country) || (country == Russia) ) | |
1139 | { | |
1140 | // DST begins at 1 a.m. GMT on the last Sunday of March | |
1141 | if ( !dt.SetToLastWeekDay(Sun, Mar, year) ) | |
1142 | { | |
1143 | // weird... | |
1144 | wxFAIL_MSG( _T("no last Sunday in March?") ); | |
1145 | } | |
1146 | ||
1147 | dt += wxTimeSpan::Hours(1); | |
1148 | ||
41acf5c0 | 1149 | // disable DST tests because it could result in an infinite recursion! |
68379eaf | 1150 | dt.MakeGMT(true); |
239446b4 VZ |
1151 | } |
1152 | else switch ( country ) | |
1153 | { | |
1154 | case USA: | |
1155 | switch ( year ) | |
1156 | { | |
1157 | case 1918: | |
1158 | case 1919: | |
1159 | // don't know for sure - assume it was in effect all year | |
1160 | ||
1161 | case 1943: | |
1162 | case 1944: | |
1163 | case 1945: | |
1164 | dt.Set(1, Jan, year); | |
1165 | break; | |
1166 | ||
1167 | case 1942: | |
1168 | // DST was installed Feb 2, 1942 by the Congress | |
1169 | dt.Set(2, Feb, year); | |
1170 | break; | |
1171 | ||
1172 | // Oil embargo changed the DST period in the US | |
1173 | case 1974: | |
1174 | dt.Set(6, Jan, 1974); | |
1175 | break; | |
1176 | ||
1177 | case 1975: | |
1178 | dt.Set(23, Feb, 1975); | |
1179 | break; | |
1180 | ||
1181 | default: | |
1182 | // before 1986, DST begun on the last Sunday of April, but | |
1183 | // in 1986 Reagan changed it to begin at 2 a.m. of the | |
1184 | // first Sunday in April | |
1185 | if ( year < 1986 ) | |
1186 | { | |
1187 | if ( !dt.SetToLastWeekDay(Sun, Apr, year) ) | |
1188 | { | |
1189 | // weird... | |
1190 | wxFAIL_MSG( _T("no first Sunday in April?") ); | |
1191 | } | |
1192 | } | |
1193 | else | |
1194 | { | |
1195 | if ( !dt.SetToWeekDay(Sun, 1, Apr, year) ) | |
1196 | { | |
1197 | // weird... | |
1198 | wxFAIL_MSG( _T("no first Sunday in April?") ); | |
1199 | } | |
1200 | } | |
1201 | ||
1202 | dt += wxTimeSpan::Hours(2); | |
1203 | ||
1204 | // TODO what about timezone?? | |
1205 | } | |
1206 | ||
1207 | break; | |
1208 | ||
1209 | default: | |
1210 | // assume Mar 30 as the start of the DST for the rest of the world | |
1211 | // - totally bogus, of course | |
1212 | dt.Set(30, Mar, year); | |
1213 | } | |
1214 | ||
1215 | return dt; | |
1216 | } | |
1217 | ||
1218 | /* static */ | |
1219 | wxDateTime wxDateTime::GetEndDST(int year, Country country) | |
1220 | { | |
1221 | if ( year == Inv_Year ) | |
1222 | { | |
1223 | // take the current year if none given | |
1224 | year = GetCurrentYear(); | |
1225 | } | |
1226 | ||
1227 | if ( country == Country_Default ) | |
1228 | { | |
1229 | country = GetCountry(); | |
1230 | } | |
1231 | ||
1232 | if ( !IsDSTApplicable(year, country) ) | |
1233 | { | |
2ef31e80 | 1234 | return wxInvalidDateTime; |
239446b4 VZ |
1235 | } |
1236 | ||
1237 | wxDateTime dt; | |
1238 | ||
1239 | if ( IsWestEuropeanCountry(country) || (country == Russia) ) | |
1240 | { | |
5f287370 | 1241 | // DST ends at 1 a.m. GMT on the last Sunday of October |
239446b4 VZ |
1242 | if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) |
1243 | { | |
1244 | // weirder and weirder... | |
1245 | wxFAIL_MSG( _T("no last Sunday in October?") ); | |
1246 | } | |
1247 | ||
1248 | dt += wxTimeSpan::Hours(1); | |
1249 | ||
41acf5c0 | 1250 | // disable DST tests because it could result in an infinite recursion! |
68379eaf | 1251 | dt.MakeGMT(true); |
239446b4 VZ |
1252 | } |
1253 | else switch ( country ) | |
1254 | { | |
1255 | case USA: | |
1256 | switch ( year ) | |
1257 | { | |
1258 | case 1918: | |
1259 | case 1919: | |
1260 | // don't know for sure - assume it was in effect all year | |
1261 | ||
1262 | case 1943: | |
1263 | case 1944: | |
1264 | dt.Set(31, Dec, year); | |
1265 | break; | |
1266 | ||
1267 | case 1945: | |
1268 | // the time was reset after the end of the WWII | |
1269 | dt.Set(30, Sep, year); | |
1270 | break; | |
1271 | ||
1272 | default: | |
5f287370 | 1273 | // DST ends at 2 a.m. on the last Sunday of October |
239446b4 VZ |
1274 | if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) |
1275 | { | |
1276 | // weirder and weirder... | |
1277 | wxFAIL_MSG( _T("no last Sunday in October?") ); | |
1278 | } | |
1279 | ||
1280 | dt += wxTimeSpan::Hours(2); | |
1281 | ||
1282 | // TODO what about timezone?? | |
1283 | } | |
1284 | break; | |
1285 | ||
1286 | default: | |
1287 | // assume October 26th as the end of the DST - totally bogus too | |
1288 | dt.Set(26, Oct, year); | |
1289 | } | |
1290 | ||
1291 | return dt; | |
1292 | } | |
1293 | ||
0979c962 VZ |
1294 | // ---------------------------------------------------------------------------- |
1295 | // constructors and assignment operators | |
1296 | // ---------------------------------------------------------------------------- | |
1297 | ||
f6bcfd97 BP |
1298 | // return the current time with ms precision |
1299 | /* static */ wxDateTime wxDateTime::UNow() | |
1300 | { | |
1301 | return wxDateTime(wxGetLocalTimeMillis()); | |
1302 | } | |
1303 | ||
299fcbfe VZ |
1304 | // the values in the tm structure contain the local time |
1305 | wxDateTime& wxDateTime::Set(const struct tm& tm) | |
0979c962 | 1306 | { |
299fcbfe | 1307 | struct tm tm2(tm); |
b76b015e | 1308 | time_t timet = mktime(&tm2); |
1ef54dcf | 1309 | |
4afd7529 | 1310 | if ( timet == (time_t)-1 ) |
0979c962 | 1311 | { |
4afd7529 VZ |
1312 | // mktime() rather unintuitively fails for Jan 1, 1970 if the hour is |
1313 | // less than timezone - try to make it work for this case | |
1314 | if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 ) | |
1315 | { | |
3d78a532 RD |
1316 | return Set((time_t)( |
1317 | GetTimeZone() + | |
1318 | tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN + | |
1319 | tm2.tm_min * SEC_PER_MIN + | |
1320 | tm2.tm_sec)); | |
4afd7529 VZ |
1321 | } |
1322 | ||
1323 | wxFAIL_MSG( _T("mktime() failed") ); | |
0979c962 | 1324 | |
384223b3 VZ |
1325 | *this = wxInvalidDateTime; |
1326 | ||
1327 | return *this; | |
0979c962 VZ |
1328 | } |
1329 | else | |
1330 | { | |
1331 | return Set(timet); | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | wxDateTime& wxDateTime::Set(wxDateTime_t hour, | |
1336 | wxDateTime_t minute, | |
1337 | wxDateTime_t second, | |
1338 | wxDateTime_t millisec) | |
1339 | { | |
1340 | // we allow seconds to be 61 to account for the leap seconds, even if we | |
1341 | // don't use them really | |
384223b3 VZ |
1342 | wxDATETIME_CHECK( hour < 24 && |
1343 | second < 62 && | |
1344 | minute < 60 && | |
1345 | millisec < 1000, | |
1346 | _T("Invalid time in wxDateTime::Set()") ); | |
0979c962 VZ |
1347 | |
1348 | // get the current date from system | |
a452689b SN |
1349 | struct tm tmstruct; |
1350 | struct tm *tm = GetTmNow(&tmstruct); | |
299fcbfe | 1351 | |
a452689b | 1352 | wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") ); |
0979c962 | 1353 | |
456639ac VZ |
1354 | // make a copy so it isn't clobbered by the call to mktime() below |
1355 | struct tm tm1(*tm); | |
1356 | ||
0979c962 | 1357 | // adjust the time |
456639ac VZ |
1358 | tm1.tm_hour = hour; |
1359 | tm1.tm_min = minute; | |
1360 | tm1.tm_sec = second; | |
0979c962 | 1361 | |
9cc311d3 | 1362 | // and the DST in case it changes on this date |
456639ac | 1363 | struct tm tm2(tm1); |
9cc311d3 | 1364 | mktime(&tm2); |
456639ac VZ |
1365 | if ( tm2.tm_isdst != tm1.tm_isdst ) |
1366 | tm1.tm_isdst = tm2.tm_isdst; | |
9cc311d3 | 1367 | |
456639ac | 1368 | (void)Set(tm1); |
0979c962 VZ |
1369 | |
1370 | // and finally adjust milliseconds | |
1371 | return SetMillisecond(millisec); | |
1372 | } | |
1373 | ||
1374 | wxDateTime& wxDateTime::Set(wxDateTime_t day, | |
1375 | Month month, | |
1376 | int year, | |
1377 | wxDateTime_t hour, | |
1378 | wxDateTime_t minute, | |
1379 | wxDateTime_t second, | |
1380 | wxDateTime_t millisec) | |
1381 | { | |
384223b3 VZ |
1382 | wxDATETIME_CHECK( hour < 24 && |
1383 | second < 62 && | |
1384 | minute < 60 && | |
1385 | millisec < 1000, | |
1386 | _T("Invalid time in wxDateTime::Set()") ); | |
0979c962 | 1387 | |
2f02cb89 | 1388 | ReplaceDefaultYearMonthWithCurrent(&year, &month); |
0979c962 | 1389 | |
384223b3 VZ |
1390 | wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)), |
1391 | _T("Invalid date in wxDateTime::Set()") ); | |
0979c962 VZ |
1392 | |
1393 | // the range of time_t type (inclusive) | |
1394 | static const int yearMinInRange = 1970; | |
1395 | static const int yearMaxInRange = 2037; | |
1396 | ||
1397 | // test only the year instead of testing for the exact end of the Unix | |
1398 | // time_t range - it doesn't bring anything to do more precise checks | |
2f02cb89 | 1399 | if ( year >= yearMinInRange && year <= yearMaxInRange ) |
0979c962 VZ |
1400 | { |
1401 | // use the standard library version if the date is in range - this is | |
b76b015e | 1402 | // probably more efficient than our code |
0979c962 | 1403 | struct tm tm; |
b76b015e | 1404 | tm.tm_year = year - 1900; |
0979c962 VZ |
1405 | tm.tm_mon = month; |
1406 | tm.tm_mday = day; | |
1407 | tm.tm_hour = hour; | |
1408 | tm.tm_min = minute; | |
1409 | tm.tm_sec = second; | |
299fcbfe | 1410 | tm.tm_isdst = -1; // mktime() will guess it |
0979c962 VZ |
1411 | |
1412 | (void)Set(tm); | |
1413 | ||
1414 | // and finally adjust milliseconds | |
3d78a532 RD |
1415 | if (IsValid()) |
1416 | SetMillisecond(millisec); | |
1417 | ||
1418 | return *this; | |
0979c962 VZ |
1419 | } |
1420 | else | |
1421 | { | |
1422 | // do time calculations ourselves: we want to calculate the number of | |
fcc3d7cb | 1423 | // milliseconds between the given date and the epoch |
e6ec579c VZ |
1424 | |
1425 | // get the JDN for the midnight of this day | |
1426 | m_time = GetTruncatedJDN(day, month, year); | |
1427 | m_time -= EPOCH_JDN; | |
1428 | m_time *= SECONDS_PER_DAY * TIME_T_FACTOR; | |
1429 | ||
299fcbfe VZ |
1430 | // JDN corresponds to GMT, we take localtime |
1431 | Add(wxTimeSpan(hour, minute, second + GetTimeZone(), millisec)); | |
b76b015e VZ |
1432 | } |
1433 | ||
1434 | return *this; | |
1435 | } | |
1436 | ||
e6ec579c VZ |
1437 | wxDateTime& wxDateTime::Set(double jdn) |
1438 | { | |
1ef54dcf VZ |
1439 | // so that m_time will be 0 for the midnight of Jan 1, 1970 which is jdn |
1440 | // EPOCH_JDN + 0.5 | |
1441 | jdn -= EPOCH_JDN + 0.5; | |
1442 | ||
d26adb9d | 1443 | m_time.Assign(jdn*MILLISECONDS_PER_DAY); |
cd0b1709 | 1444 | |
d26adb9d | 1445 | // JDNs always are in UTC, so we don't need any adjustments for time zone |
e6ec579c VZ |
1446 | |
1447 | return *this; | |
1448 | } | |
1449 | ||
9d9b7755 VZ |
1450 | wxDateTime& wxDateTime::ResetTime() |
1451 | { | |
1452 | Tm tm = GetTm(); | |
1453 | ||
1454 | if ( tm.hour || tm.min || tm.sec || tm.msec ) | |
1455 | { | |
1456 | tm.msec = | |
1457 | tm.sec = | |
1458 | tm.min = | |
1459 | tm.hour = 0; | |
1460 | ||
1461 | Set(tm); | |
1462 | } | |
1463 | ||
1464 | return *this; | |
1465 | } | |
1466 | ||
2b5f62a0 VZ |
1467 | // ---------------------------------------------------------------------------- |
1468 | // DOS Date and Time Format functions | |
1469 | // ---------------------------------------------------------------------------- | |
1470 | // the dos date and time value is an unsigned 32 bit value in the format: | |
1471 | // YYYYYYYMMMMDDDDDhhhhhmmmmmmsssss | |
1472 | // | |
1473 | // Y = year offset from 1980 (0-127) | |
1474 | // M = month (1-12) | |
1475 | // D = day of month (1-31) | |
1476 | // h = hour (0-23) | |
1477 | // m = minute (0-59) | |
1478 | // s = bisecond (0-29) each bisecond indicates two seconds | |
1479 | // ---------------------------------------------------------------------------- | |
1480 | ||
1481 | wxDateTime& wxDateTime::SetFromDOS(unsigned long ddt) | |
1482 | { | |
1483 | struct tm tm; | |
4739346e | 1484 | InitTm(tm); |
2b5f62a0 VZ |
1485 | |
1486 | long year = ddt & 0xFE000000; | |
1487 | year >>= 25; | |
1488 | year += 80; | |
1489 | tm.tm_year = year; | |
1490 | ||
1491 | long month = ddt & 0x1E00000; | |
1492 | month >>= 21; | |
1493 | month -= 1; | |
1494 | tm.tm_mon = month; | |
1495 | ||
1496 | long day = ddt & 0x1F0000; | |
1497 | day >>= 16; | |
1498 | tm.tm_mday = day; | |
1499 | ||
1500 | long hour = ddt & 0xF800; | |
1501 | hour >>= 11; | |
1502 | tm.tm_hour = hour; | |
1503 | ||
1504 | long minute = ddt & 0x7E0; | |
1505 | minute >>= 5; | |
1506 | tm.tm_min = minute; | |
1507 | ||
1508 | long second = ddt & 0x1F; | |
1509 | tm.tm_sec = second * 2; | |
1510 | ||
1511 | return Set(mktime(&tm)); | |
1512 | } | |
1513 | ||
1514 | unsigned long wxDateTime::GetAsDOS() const | |
1515 | { | |
1516 | unsigned long ddt; | |
1517 | time_t ticks = GetTicks(); | |
a452689b SN |
1518 | struct tm tmstruct; |
1519 | struct tm *tm = wxLocaltime_r(&ticks, &tmstruct); | |
2b5f62a0 VZ |
1520 | |
1521 | long year = tm->tm_year; | |
1522 | year -= 80; | |
1523 | year <<= 25; | |
1524 | ||
1525 | long month = tm->tm_mon; | |
1526 | month += 1; | |
1527 | month <<= 21; | |
1528 | ||
1529 | long day = tm->tm_mday; | |
1530 | day <<= 16; | |
1531 | ||
1532 | long hour = tm->tm_hour; | |
1533 | hour <<= 11; | |
1534 | ||
1535 | long minute = tm->tm_min; | |
1536 | minute <<= 5; | |
1537 | ||
1538 | long second = tm->tm_sec; | |
1539 | second /= 2; | |
1540 | ||
1541 | ddt = year | month | day | hour | minute | second; | |
1542 | return ddt; | |
1543 | } | |
1544 | ||
b76b015e VZ |
1545 | // ---------------------------------------------------------------------------- |
1546 | // time_t <-> broken down time conversions | |
1547 | // ---------------------------------------------------------------------------- | |
1548 | ||
299fcbfe | 1549 | wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const |
b76b015e VZ |
1550 | { |
1551 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1552 | ||
1553 | time_t time = GetTicks(); | |
1554 | if ( time != (time_t)-1 ) | |
1555 | { | |
1556 | // use C RTL functions | |
a452689b | 1557 | struct tm tmstruct; |
299fcbfe VZ |
1558 | tm *tm; |
1559 | if ( tz.GetOffset() == -GetTimeZone() ) | |
1560 | { | |
1561 | // we are working with local time | |
a452689b | 1562 | tm = wxLocaltime_r(&time, &tmstruct); |
c5a1681b VZ |
1563 | |
1564 | // should never happen | |
a452689b | 1565 | wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
1566 | } |
1567 | else | |
1568 | { | |
13111b2a | 1569 | time += (time_t)tz.GetOffset(); |
33ac7e6f | 1570 | #if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning |
13111b2a | 1571 | int time2 = (int) time; |
9d9b7755 | 1572 | if ( time2 >= 0 ) |
fb10f04c | 1573 | #else |
9d9b7755 | 1574 | if ( time >= 0 ) |
fb10f04c | 1575 | #endif |
c5a1681b | 1576 | { |
a452689b | 1577 | tm = wxGmtime_r(&time, &tmstruct); |
b76b015e | 1578 | |
c5a1681b | 1579 | // should never happen |
a452689b | 1580 | wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") ); |
c5a1681b VZ |
1581 | } |
1582 | else | |
1583 | { | |
1584 | tm = (struct tm *)NULL; | |
1585 | } | |
1586 | } | |
b76b015e | 1587 | |
c5a1681b VZ |
1588 | if ( tm ) |
1589 | { | |
f6bcfd97 BP |
1590 | // adjust the milliseconds |
1591 | Tm tm2(*tm, tz); | |
1592 | long timeOnly = (m_time % MILLISECONDS_PER_DAY).ToLong(); | |
1593 | tm2.msec = (wxDateTime_t)(timeOnly % 1000); | |
1594 | return tm2; | |
c5a1681b VZ |
1595 | } |
1596 | //else: use generic code below | |
b76b015e | 1597 | } |
e6ec579c | 1598 | |
c5a1681b VZ |
1599 | // remember the time and do the calculations with the date only - this |
1600 | // eliminates rounding errors of the floating point arithmetics | |
299fcbfe | 1601 | |
c5a1681b | 1602 | wxLongLong timeMidnight = m_time + tz.GetOffset() * 1000; |
1ef54dcf | 1603 | |
c5a1681b | 1604 | long timeOnly = (timeMidnight % MILLISECONDS_PER_DAY).ToLong(); |
1ef54dcf | 1605 | |
c5a1681b VZ |
1606 | // we want to always have positive time and timeMidnight to be really |
1607 | // the midnight before it | |
1608 | if ( timeOnly < 0 ) | |
1609 | { | |
1610 | timeOnly = MILLISECONDS_PER_DAY + timeOnly; | |
1611 | } | |
e6ec579c | 1612 | |
c5a1681b | 1613 | timeMidnight -= timeOnly; |
1ef54dcf | 1614 | |
c5a1681b VZ |
1615 | // calculate the Gregorian date from JDN for the midnight of our date: |
1616 | // this will yield day, month (in 1..12 range) and year | |
1ef54dcf | 1617 | |
c5a1681b VZ |
1618 | // actually, this is the JDN for the noon of the previous day |
1619 | long jdn = (timeMidnight / MILLISECONDS_PER_DAY).ToLong() + EPOCH_JDN; | |
1ef54dcf | 1620 | |
c5a1681b | 1621 | // CREDIT: code below is by Scott E. Lee (but bugs are mine) |
1ef54dcf | 1622 | |
c5a1681b | 1623 | wxASSERT_MSG( jdn > -2, _T("JDN out of range") ); |
1ef54dcf | 1624 | |
c5a1681b | 1625 | // calculate the century |
479cd5de VZ |
1626 | long temp = (jdn + JDN_OFFSET) * 4 - 1; |
1627 | long century = temp / DAYS_PER_400_YEARS; | |
1ef54dcf | 1628 | |
c5a1681b VZ |
1629 | // then the year and day of year (1 <= dayOfYear <= 366) |
1630 | temp = ((temp % DAYS_PER_400_YEARS) / 4) * 4 + 3; | |
479cd5de VZ |
1631 | long year = (century * 100) + (temp / DAYS_PER_4_YEARS); |
1632 | long dayOfYear = (temp % DAYS_PER_4_YEARS) / 4 + 1; | |
1ef54dcf | 1633 | |
c5a1681b VZ |
1634 | // and finally the month and day of the month |
1635 | temp = dayOfYear * 5 - 3; | |
479cd5de VZ |
1636 | long month = temp / DAYS_PER_5_MONTHS; |
1637 | long day = (temp % DAYS_PER_5_MONTHS) / 5 + 1; | |
c5a1681b VZ |
1638 | |
1639 | // month is counted from March - convert to normal | |
1640 | if ( month < 10 ) | |
1641 | { | |
1642 | month += 3; | |
1643 | } | |
1644 | else | |
1645 | { | |
1646 | year += 1; | |
1647 | month -= 9; | |
1648 | } | |
1ef54dcf | 1649 | |
c5a1681b VZ |
1650 | // year is offset by 4800 |
1651 | year -= 4800; | |
1ef54dcf | 1652 | |
c5a1681b VZ |
1653 | // check that the algorithm gave us something reasonable |
1654 | wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") ); | |
1655 | wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") ); | |
e6ec579c | 1656 | |
c5a1681b VZ |
1657 | // construct Tm from these values |
1658 | Tm tm; | |
1659 | tm.year = (int)year; | |
1660 | tm.mon = (Month)(month - 1); // algorithm yields 1 for January, not 0 | |
1661 | tm.mday = (wxDateTime_t)day; | |
479cd5de | 1662 | tm.msec = (wxDateTime_t)(timeOnly % 1000); |
c5a1681b VZ |
1663 | timeOnly -= tm.msec; |
1664 | timeOnly /= 1000; // now we have time in seconds | |
e6ec579c | 1665 | |
d26adb9d | 1666 | tm.sec = (wxDateTime_t)(timeOnly % SEC_PER_MIN); |
c5a1681b | 1667 | timeOnly -= tm.sec; |
d26adb9d | 1668 | timeOnly /= SEC_PER_MIN; // now we have time in minutes |
e6ec579c | 1669 | |
d26adb9d | 1670 | tm.min = (wxDateTime_t)(timeOnly % MIN_PER_HOUR); |
c5a1681b | 1671 | timeOnly -= tm.min; |
e6ec579c | 1672 | |
d26adb9d | 1673 | tm.hour = (wxDateTime_t)(timeOnly / MIN_PER_HOUR); |
b76b015e | 1674 | |
c5a1681b | 1675 | return tm; |
b76b015e VZ |
1676 | } |
1677 | ||
1678 | wxDateTime& wxDateTime::SetYear(int year) | |
1679 | { | |
1680 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1681 | ||
1682 | Tm tm(GetTm()); | |
1683 | tm.year = year; | |
1684 | Set(tm); | |
1685 | ||
1686 | return *this; | |
1687 | } | |
1688 | ||
1689 | wxDateTime& wxDateTime::SetMonth(Month month) | |
1690 | { | |
1691 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1692 | ||
1693 | Tm tm(GetTm()); | |
1694 | tm.mon = month; | |
1695 | Set(tm); | |
1696 | ||
1697 | return *this; | |
1698 | } | |
1699 | ||
1700 | wxDateTime& wxDateTime::SetDay(wxDateTime_t mday) | |
1701 | { | |
1702 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1703 | ||
1704 | Tm tm(GetTm()); | |
1705 | tm.mday = mday; | |
1706 | Set(tm); | |
1707 | ||
1708 | return *this; | |
1709 | } | |
1710 | ||
1711 | wxDateTime& wxDateTime::SetHour(wxDateTime_t hour) | |
1712 | { | |
1713 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1714 | ||
1715 | Tm tm(GetTm()); | |
1716 | tm.hour = hour; | |
1717 | Set(tm); | |
1718 | ||
1719 | return *this; | |
1720 | } | |
1721 | ||
1722 | wxDateTime& wxDateTime::SetMinute(wxDateTime_t min) | |
1723 | { | |
1724 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1725 | ||
1726 | Tm tm(GetTm()); | |
1727 | tm.min = min; | |
1728 | Set(tm); | |
1729 | ||
1730 | return *this; | |
1731 | } | |
1732 | ||
1733 | wxDateTime& wxDateTime::SetSecond(wxDateTime_t sec) | |
1734 | { | |
1735 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1736 | ||
1737 | Tm tm(GetTm()); | |
1738 | tm.sec = sec; | |
1739 | Set(tm); | |
0979c962 VZ |
1740 | |
1741 | return *this; | |
1742 | } | |
b76b015e VZ |
1743 | |
1744 | wxDateTime& wxDateTime::SetMillisecond(wxDateTime_t millisecond) | |
1745 | { | |
1746 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); | |
1747 | ||
1748 | // we don't need to use GetTm() for this one | |
1749 | m_time -= m_time % 1000l; | |
1750 | m_time += millisecond; | |
1751 | ||
1752 | return *this; | |
1753 | } | |
1754 | ||
1755 | // ---------------------------------------------------------------------------- | |
1756 | // wxDateTime arithmetics | |
1757 | // ---------------------------------------------------------------------------- | |
1758 | ||
1759 | wxDateTime& wxDateTime::Add(const wxDateSpan& diff) | |
1760 | { | |
1761 | Tm tm(GetTm()); | |
1762 | ||
1763 | tm.year += diff.GetYears(); | |
fcc3d7cb | 1764 | tm.AddMonths(diff.GetMonths()); |
4f6aed9c VZ |
1765 | |
1766 | // check that the resulting date is valid | |
1767 | if ( tm.mday > GetNumOfDaysInMonth(tm.year, tm.mon) ) | |
1768 | { | |
1769 | // We suppose that when adding one month to Jan 31 we want to get Feb | |
1770 | // 28 (or 29), i.e. adding a month to the last day of the month should | |
1771 | // give the last day of the next month which is quite logical. | |
1772 | // | |
1773 | // Unfortunately, there is no logic way to understand what should | |
1774 | // Jan 30 + 1 month be - Feb 28 too or Feb 27 (assuming non leap year)? | |
1775 | // We make it Feb 28 (last day too), but it is highly questionable. | |
1776 | tm.mday = GetNumOfDaysInMonth(tm.year, tm.mon); | |
1777 | } | |
1778 | ||
fcc3d7cb | 1779 | tm.AddDays(diff.GetTotalDays()); |
b76b015e VZ |
1780 | |
1781 | Set(tm); | |
1782 | ||
9d9b7755 VZ |
1783 | wxASSERT_MSG( IsSameTime(tm), |
1784 | _T("Add(wxDateSpan) shouldn't modify time") ); | |
1785 | ||
b76b015e VZ |
1786 | return *this; |
1787 | } | |
1788 | ||
2f02cb89 VZ |
1789 | // ---------------------------------------------------------------------------- |
1790 | // Weekday and monthday stuff | |
1791 | // ---------------------------------------------------------------------------- | |
1792 | ||
4c27e2fa VZ |
1793 | // convert Sun, Mon, ..., Sat into 6, 0, ..., 5 |
1794 | static inline int ConvertWeekDayToMondayBase(int wd) | |
1795 | { | |
1796 | return wd == wxDateTime::Sun ? 6 : wd - 1; | |
1797 | } | |
1798 | ||
1799 | /* static */ | |
1800 | wxDateTime | |
1801 | wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd) | |
4f6aed9c | 1802 | { |
2b5f62a0 VZ |
1803 | wxASSERT_MSG( numWeek > 0, |
1804 | _T("invalid week number: weeks are counted from 1") ); | |
1805 | ||
4c27e2fa VZ |
1806 | // Jan 4 always lies in the 1st week of the year |
1807 | wxDateTime dt(4, Jan, year); | |
1808 | dt.SetToWeekDayInSameWeek(wd); | |
1809 | dt += wxDateSpan::Weeks(numWeek - 1); | |
1810 | ||
1811 | return dt; | |
1812 | } | |
4f6aed9c | 1813 | |
ca3e85cf | 1814 | #if WXWIN_COMPATIBILITY_2_6 |
4c27e2fa VZ |
1815 | // use a separate function to avoid warnings about using deprecated |
1816 | // SetToTheWeek in GetWeek below | |
1817 | static wxDateTime | |
1818 | SetToTheWeek(int year, | |
1819 | wxDateTime::wxDateTime_t numWeek, | |
1820 | wxDateTime::WeekDay weekday, | |
1821 | wxDateTime::WeekFlags flags) | |
1822 | { | |
4f6aed9c | 1823 | // Jan 4 always lies in the 1st week of the year |
4c27e2fa VZ |
1824 | wxDateTime dt(4, wxDateTime::Jan, year); |
1825 | dt.SetToWeekDayInSameWeek(weekday, flags); | |
1826 | dt += wxDateSpan::Weeks(numWeek - 1); | |
4f6aed9c | 1827 | |
4c27e2fa VZ |
1828 | return dt; |
1829 | } | |
1830 | ||
1831 | bool wxDateTime::SetToTheWeek(wxDateTime_t numWeek, | |
1832 | WeekDay weekday, | |
1833 | WeekFlags flags) | |
1834 | { | |
1835 | int year = GetYear(); | |
1836 | *this = ::SetToTheWeek(year, numWeek, weekday, flags); | |
4f6aed9c VZ |
1837 | if ( GetYear() != year ) |
1838 | { | |
1839 | // oops... numWeek was too big | |
68379eaf | 1840 | return false; |
4f6aed9c VZ |
1841 | } |
1842 | ||
68379eaf | 1843 | return true; |
4f6aed9c VZ |
1844 | } |
1845 | ||
4c27e2fa VZ |
1846 | wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, |
1847 | WeekDay weekday, | |
1848 | WeekFlags flags) const | |
1849 | { | |
1850 | return ::SetToTheWeek(GetYear(), numWeek, weekday, flags); | |
1851 | } | |
ca3e85cf | 1852 | #endif // WXWIN_COMPATIBILITY_2_6 |
4c27e2fa | 1853 | |
2f02cb89 VZ |
1854 | wxDateTime& wxDateTime::SetToLastMonthDay(Month month, |
1855 | int year) | |
1856 | { | |
1857 | // take the current month/year if none specified | |
1a8557b1 VZ |
1858 | if ( year == Inv_Year ) |
1859 | year = GetYear(); | |
1860 | if ( month == Inv_Month ) | |
1861 | month = GetMonth(); | |
2f02cb89 | 1862 | |
fcc3d7cb | 1863 | return Set(GetNumOfDaysInMonth(year, month), month, year); |
2f02cb89 VZ |
1864 | } |
1865 | ||
2b5f62a0 | 1866 | wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags) |
cd0b1709 | 1867 | { |
384223b3 | 1868 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 | 1869 | |
af80bc92 VZ |
1870 | int wdayDst = weekday, |
1871 | wdayThis = GetWeekDay(); | |
1872 | if ( wdayDst == wdayThis ) | |
cd0b1709 VZ |
1873 | { |
1874 | // nothing to do | |
1875 | return *this; | |
1876 | } | |
2b5f62a0 VZ |
1877 | |
1878 | if ( flags == Default_First ) | |
1879 | { | |
1880 | flags = GetCountry() == USA ? Sunday_First : Monday_First; | |
1881 | } | |
1882 | ||
1883 | // the logic below based on comparing weekday and wdayThis works if Sun (0) | |
1884 | // is the first day in the week, but breaks down for Monday_First case so | |
1885 | // we adjust the week days in this case | |
af80bc92 | 1886 | if ( flags == Monday_First ) |
2b5f62a0 VZ |
1887 | { |
1888 | if ( wdayThis == Sun ) | |
1889 | wdayThis += 7; | |
af80bc92 VZ |
1890 | if ( wdayDst == Sun ) |
1891 | wdayDst += 7; | |
2b5f62a0 VZ |
1892 | } |
1893 | //else: Sunday_First, nothing to do | |
1894 | ||
1895 | // go forward or back in time to the day we want | |
af80bc92 | 1896 | if ( wdayDst < wdayThis ) |
cd0b1709 | 1897 | { |
af80bc92 | 1898 | return Subtract(wxDateSpan::Days(wdayThis - wdayDst)); |
cd0b1709 VZ |
1899 | } |
1900 | else // weekday > wdayThis | |
1901 | { | |
af80bc92 | 1902 | return Add(wxDateSpan::Days(wdayDst - wdayThis)); |
cd0b1709 VZ |
1903 | } |
1904 | } | |
1905 | ||
1906 | wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) | |
1907 | { | |
384223b3 | 1908 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 VZ |
1909 | |
1910 | int diff; | |
1911 | WeekDay wdayThis = GetWeekDay(); | |
1912 | if ( weekday == wdayThis ) | |
1913 | { | |
1914 | // nothing to do | |
1915 | return *this; | |
1916 | } | |
1917 | else if ( weekday < wdayThis ) | |
1918 | { | |
1919 | // need to advance a week | |
1920 | diff = 7 - (wdayThis - weekday); | |
1921 | } | |
1922 | else // weekday > wdayThis | |
1923 | { | |
1924 | diff = weekday - wdayThis; | |
1925 | } | |
1926 | ||
4f6aed9c | 1927 | return Add(wxDateSpan::Days(diff)); |
cd0b1709 VZ |
1928 | } |
1929 | ||
1930 | wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday) | |
1931 | { | |
384223b3 | 1932 | wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); |
cd0b1709 VZ |
1933 | |
1934 | int diff; | |
1935 | WeekDay wdayThis = GetWeekDay(); | |
1936 | if ( weekday == wdayThis ) | |
1937 | { | |
1938 | // nothing to do | |
1939 | return *this; | |
1940 | } | |
1941 | else if ( weekday > wdayThis ) | |
1942 | { | |
1943 | // need to go to previous week | |
1944 | diff = 7 - (weekday - wdayThis); | |
1945 | } | |
1946 | else // weekday < wdayThis | |
1947 | { | |
1948 | diff = wdayThis - weekday; | |
1949 | } | |
1950 | ||
f6bcfd97 | 1951 | return Subtract(wxDateSpan::Days(diff)); |
cd0b1709 VZ |
1952 | } |
1953 | ||
2f02cb89 VZ |
1954 | bool wxDateTime::SetToWeekDay(WeekDay weekday, |
1955 | int n, | |
1956 | Month month, | |
1957 | int year) | |
1958 | { | |
68379eaf | 1959 | wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") ); |
2f02cb89 | 1960 | |
68379eaf | 1961 | // we don't check explicitly that -5 <= n <= 5 because we will return false |
2f02cb89 VZ |
1962 | // anyhow in such case - but may be should still give an assert for it? |
1963 | ||
1964 | // take the current month/year if none specified | |
1965 | ReplaceDefaultYearMonthWithCurrent(&year, &month); | |
1966 | ||
1967 | wxDateTime dt; | |
1968 | ||
1969 | // TODO this probably could be optimised somehow... | |
1970 | ||
1971 | if ( n > 0 ) | |
1972 | { | |
1973 | // get the first day of the month | |
1974 | dt.Set(1, month, year); | |
1975 | ||
1976 | // get its wday | |
1977 | WeekDay wdayFirst = dt.GetWeekDay(); | |
1978 | ||
1979 | // go to the first weekday of the month | |
1980 | int diff = weekday - wdayFirst; | |
1981 | if ( diff < 0 ) | |
1982 | diff += 7; | |
1983 | ||
1984 | // add advance n-1 weeks more | |
1985 | diff += 7*(n - 1); | |
1986 | ||
239446b4 | 1987 | dt += wxDateSpan::Days(diff); |
2f02cb89 | 1988 | } |
239446b4 | 1989 | else // count from the end of the month |
2f02cb89 VZ |
1990 | { |
1991 | // get the last day of the month | |
1992 | dt.SetToLastMonthDay(month, year); | |
1993 | ||
1994 | // get its wday | |
1995 | WeekDay wdayLast = dt.GetWeekDay(); | |
1996 | ||
1997 | // go to the last weekday of the month | |
1998 | int diff = wdayLast - weekday; | |
1999 | if ( diff < 0 ) | |
2000 | diff += 7; | |
2001 | ||
2002 | // and rewind n-1 weeks from there | |
239446b4 | 2003 | diff += 7*(-n - 1); |
2f02cb89 VZ |
2004 | |
2005 | dt -= wxDateSpan::Days(diff); | |
2006 | } | |
2007 | ||
2008 | // check that it is still in the same month | |
2009 | if ( dt.GetMonth() == month ) | |
2010 | { | |
2011 | *this = dt; | |
2012 | ||
68379eaf | 2013 | return true; |
2f02cb89 VZ |
2014 | } |
2015 | else | |
2016 | { | |
2017 | // no such day in this month | |
68379eaf | 2018 | return false; |
2f02cb89 VZ |
2019 | } |
2020 | } | |
2021 | ||
1c5d27e2 VZ |
2022 | static inline |
2023 | wxDateTime::wxDateTime_t GetDayOfYearFromTm(const wxDateTime::Tm& tm) | |
2024 | { | |
907173e5 | 2025 | return (wxDateTime::wxDateTime_t)(gs_cumulatedDays[wxDateTime::IsLeapYear(tm.year)][tm.mon] + tm.mday); |
1c5d27e2 VZ |
2026 | } |
2027 | ||
239446b4 VZ |
2028 | wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const |
2029 | { | |
1c5d27e2 VZ |
2030 | return GetDayOfYearFromTm(GetTm(tz)); |
2031 | } | |
239446b4 | 2032 | |
1c5d27e2 VZ |
2033 | wxDateTime::wxDateTime_t |
2034 | wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const | |
239446b4 | 2035 | { |
9d9b7755 VZ |
2036 | if ( flags == Default_First ) |
2037 | { | |
2038 | flags = GetCountry() == USA ? Sunday_First : Monday_First; | |
2039 | } | |
239446b4 | 2040 | |
1c5d27e2 VZ |
2041 | Tm tm(GetTm(tz)); |
2042 | wxDateTime_t nDayInYear = GetDayOfYearFromTm(tm); | |
239446b4 | 2043 | |
1c5d27e2 VZ |
2044 | int wdTarget = GetWeekDay(tz); |
2045 | int wdYearStart = wxDateTime(1, Jan, GetYear()).GetWeekDay(); | |
2046 | int week; | |
9d9b7755 VZ |
2047 | if ( flags == Sunday_First ) |
2048 | { | |
1c5d27e2 VZ |
2049 | // FIXME: First week is not calculated correctly. |
2050 | week = (nDayInYear - wdTarget + 7) / 7; | |
2051 | if ( wdYearStart == Wed || wdYearStart == Thu ) | |
2052 | week++; | |
9d9b7755 | 2053 | } |
1c5d27e2 | 2054 | else // week starts with monday |
9d9b7755 | 2055 | { |
1c5d27e2 VZ |
2056 | // adjust the weekdays to non-US style. |
2057 | wdYearStart = ConvertWeekDayToMondayBase(wdYearStart); | |
2058 | wdTarget = ConvertWeekDayToMondayBase(wdTarget); | |
239446b4 | 2059 | |
1c5d27e2 VZ |
2060 | // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html: |
2061 | // | |
2062 | // Week 01 of a year is per definition the first week that has the | |
2063 | // Thursday in this year, which is equivalent to the week that | |
2064 | // contains the fourth day of January. In other words, the first | |
2065 | // week of a new year is the week that has the majority of its | |
2066 | // days in the new year. Week 01 might also contain days from the | |
2067 | // previous year and the week before week 01 of a year is the last | |
2068 | // week (52 or 53) of the previous year even if it contains days | |
2069 | // from the new year. A week starts with Monday (day 1) and ends | |
2070 | // with Sunday (day 7). | |
2071 | // | |
2072 | ||
2073 | // if Jan 1 is Thursday or less, it is in the first week of this year | |
2074 | if ( wdYearStart < 4 ) | |
2075 | { | |
2076 | // count the number of entire weeks between Jan 1 and this date | |
2077 | week = (nDayInYear + wdYearStart + 6 - wdTarget)/7; | |
2078 | ||
2079 | // be careful to check for overflow in the next year | |
2080 | if ( week == 53 && tm.mday - wdTarget > 28 ) | |
2081 | week = 1; | |
2082 | } | |
2083 | else // Jan 1 is in the last week of the previous year | |
2084 | { | |
2085 | // check if we happen to be at the last week of previous year: | |
2086 | if ( tm.mon == Jan && tm.mday < 8 - wdYearStart ) | |
2087 | week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear(); | |
2088 | else | |
2089 | week = (nDayInYear + wdYearStart - 1 - wdTarget)/7; | |
2090 | } | |
239446b4 VZ |
2091 | } |
2092 | ||
907173e5 | 2093 | return (wxDateTime::wxDateTime_t)week; |
68ee7c47 VZ |
2094 | } |
2095 | ||
9d9b7755 VZ |
2096 | wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, |
2097 | const TimeZone& tz) const | |
68ee7c47 | 2098 | { |
9d9b7755 VZ |
2099 | Tm tm = GetTm(tz); |
2100 | wxDateTime dtMonthStart = wxDateTime(1, tm.mon, tm.year); | |
6dc6fda6 | 2101 | int nWeek = GetWeekOfYear(flags) - dtMonthStart.GetWeekOfYear(flags) + 1; |
9d9b7755 | 2102 | if ( nWeek < 0 ) |
68ee7c47 | 2103 | { |
9d9b7755 VZ |
2104 | // this may happen for January when Jan, 1 is the last week of the |
2105 | // previous year | |
2106 | nWeek += IsLeapYear(tm.year - 1) ? 53 : 52; | |
68ee7c47 | 2107 | } |
68ee7c47 | 2108 | |
6dc6fda6 | 2109 | return (wxDateTime::wxDateTime_t)nWeek; |
239446b4 VZ |
2110 | } |
2111 | ||
f0f951fa VZ |
2112 | wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) |
2113 | { | |
2114 | int year = GetYear(); | |
384223b3 VZ |
2115 | wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)), |
2116 | _T("invalid year day") ); | |
f0f951fa VZ |
2117 | |
2118 | bool isLeap = IsLeapYear(year); | |
2119 | for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) ) | |
2120 | { | |
2121 | // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we | |
2122 | // don't need it neither - because of the CHECK above we know that | |
2123 | // yday lies in December then | |
f49d731f | 2124 | if ( (mon == Dec) || (yday <= gs_cumulatedDays[isLeap][mon + 1]) ) |
f0f951fa | 2125 | { |
42841dfc | 2126 | Set((wxDateTime::wxDateTime_t)(yday - gs_cumulatedDays[isLeap][mon]), mon, year); |
f0f951fa VZ |
2127 | |
2128 | break; | |
2129 | } | |
2130 | } | |
2131 | ||
2132 | return *this; | |
2133 | } | |
2134 | ||
e6ec579c VZ |
2135 | // ---------------------------------------------------------------------------- |
2136 | // Julian day number conversion and related stuff | |
2137 | // ---------------------------------------------------------------------------- | |
2138 | ||
2139 | double wxDateTime::GetJulianDayNumber() const | |
2140 | { | |
d26adb9d | 2141 | return m_time.ToDouble() / MILLISECONDS_PER_DAY + EPOCH_JDN + 0.5; |
e6ec579c VZ |
2142 | } |
2143 | ||
2144 | double wxDateTime::GetRataDie() const | |
2145 | { | |
2146 | // March 1 of the year 0 is Rata Die day -306 and JDN 1721119.5 | |
2147 | return GetJulianDayNumber() - 1721119.5 - 306; | |
2148 | } | |
2149 | ||
fcc3d7cb | 2150 | // ---------------------------------------------------------------------------- |
299fcbfe | 2151 | // timezone and DST stuff |
fcc3d7cb VZ |
2152 | // ---------------------------------------------------------------------------- |
2153 | ||
299fcbfe | 2154 | int wxDateTime::IsDST(wxDateTime::Country country) const |
fcc3d7cb | 2155 | { |
299fcbfe VZ |
2156 | wxCHECK_MSG( country == Country_Default, -1, |
2157 | _T("country support not implemented") ); | |
2158 | ||
2159 | // use the C RTL for the dates in the standard range | |
2160 | time_t timet = GetTicks(); | |
2161 | if ( timet != (time_t)-1 ) | |
2162 | { | |
a452689b SN |
2163 | struct tm tmstruct; |
2164 | tm *tm = wxLocaltime_r(&timet, &tmstruct); | |
299fcbfe | 2165 | |
a452689b | 2166 | wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
2167 | |
2168 | return tm->tm_isdst; | |
2169 | } | |
2170 | else | |
2171 | { | |
239446b4 VZ |
2172 | int year = GetYear(); |
2173 | ||
2174 | if ( !IsDSTApplicable(year, country) ) | |
2175 | { | |
2176 | // no DST time in this year in this country | |
2177 | return -1; | |
2178 | } | |
299fcbfe | 2179 | |
239446b4 | 2180 | return IsBetween(GetBeginDST(year, country), GetEndDST(year, country)); |
299fcbfe | 2181 | } |
fcc3d7cb VZ |
2182 | } |
2183 | ||
41acf5c0 | 2184 | wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) |
fcc3d7cb | 2185 | { |
479cd5de | 2186 | long secDiff = GetTimeZone() + tz.GetOffset(); |
fcc3d7cb | 2187 | |
41acf5c0 VZ |
2188 | // we need to know whether DST is or not in effect for this date unless |
2189 | // the test disabled by the caller | |
2190 | if ( !noDST && (IsDST() == 1) ) | |
299fcbfe VZ |
2191 | { |
2192 | // FIXME we assume that the DST is always shifted by 1 hour | |
2193 | secDiff -= 3600; | |
2194 | } | |
2195 | ||
d26adb9d VZ |
2196 | return Add(wxTimeSpan::Seconds(secDiff)); |
2197 | } | |
2198 | ||
2199 | wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) | |
2200 | { | |
2201 | long secDiff = GetTimeZone() + tz.GetOffset(); | |
2202 | ||
2203 | // we need to know whether DST is or not in effect for this date unless | |
2204 | // the test disabled by the caller | |
2205 | if ( !noDST && (IsDST() == 1) ) | |
2206 | { | |
2207 | // FIXME we assume that the DST is always shifted by 1 hour | |
2208 | secDiff -= 3600; | |
2209 | } | |
2210 | ||
f6bcfd97 | 2211 | return Subtract(wxTimeSpan::Seconds(secDiff)); |
fcc3d7cb VZ |
2212 | } |
2213 | ||
b76b015e VZ |
2214 | // ---------------------------------------------------------------------------- |
2215 | // wxDateTime to/from text representations | |
2216 | // ---------------------------------------------------------------------------- | |
2217 | ||
299fcbfe | 2218 | wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const |
b76b015e | 2219 | { |
525d8583 | 2220 | wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") ); |
e6ec579c | 2221 | |
f6bcfd97 BP |
2222 | // we have to use our own implementation if the date is out of range of |
2223 | // strftime() or if we use non standard specificators | |
b76b015e | 2224 | time_t time = GetTicks(); |
f6bcfd97 | 2225 | if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) ) |
b76b015e VZ |
2226 | { |
2227 | // use strftime() | |
a452689b SN |
2228 | struct tm tmstruct; |
2229 | struct tm *tm; | |
299fcbfe VZ |
2230 | if ( tz.GetOffset() == -GetTimeZone() ) |
2231 | { | |
2232 | // we are working with local time | |
a452689b | 2233 | tm = wxLocaltime_r(&time, &tmstruct); |
c5a1681b VZ |
2234 | |
2235 | // should never happen | |
a452689b | 2236 | wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") ); |
299fcbfe VZ |
2237 | } |
2238 | else | |
2239 | { | |
479cd5de | 2240 | time += (int)tz.GetOffset(); |
299fcbfe | 2241 | |
33ac7e6f | 2242 | #if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning |
13111b2a | 2243 | int time2 = (int) time; |
9c2882d9 | 2244 | if ( time2 >= 0 ) |
fb10f04c | 2245 | #else |
9c2882d9 | 2246 | if ( time >= 0 ) |
fb10f04c | 2247 | #endif |
c5a1681b | 2248 | { |
a452689b | 2249 | tm = wxGmtime_r(&time, &tmstruct); |
b76b015e | 2250 | |
c5a1681b | 2251 | // should never happen |
a452689b | 2252 | wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") ); |
c5a1681b VZ |
2253 | } |
2254 | else | |
2255 | { | |
2256 | tm = (struct tm *)NULL; | |
2257 | } | |
2258 | } | |
77b88df2 | 2259 | #ifndef __WXWINCE__ |
ba9bbf13 | 2260 | //Windows CE doesn't support strftime or wcsftime, so we use the generic implementation |
c5a1681b | 2261 | if ( tm ) |
e6ec579c | 2262 | { |
c5a1681b | 2263 | return CallStrftime(format, tm); |
e6ec579c | 2264 | } |
77b88df2 | 2265 | #endif |
c5a1681b VZ |
2266 | //else: use generic code below |
2267 | } | |
2268 | ||
68ee7c47 | 2269 | // we only parse ANSI C format specifications here, no POSIX 2 |
f6bcfd97 BP |
2270 | // complications, no GNU extensions but we do add support for a "%l" format |
2271 | // specifier allowing to get the number of milliseconds | |
68ee7c47 | 2272 | Tm tm = GetTm(tz); |
e6ec579c | 2273 | |
68ee7c47 VZ |
2274 | // used for calls to strftime() when we only deal with time |
2275 | struct tm tmTimeOnly; | |
2276 | tmTimeOnly.tm_hour = tm.hour; | |
2277 | tmTimeOnly.tm_min = tm.min; | |
2278 | tmTimeOnly.tm_sec = tm.sec; | |
2279 | tmTimeOnly.tm_wday = 0; | |
2280 | tmTimeOnly.tm_yday = 0; | |
2281 | tmTimeOnly.tm_mday = 1; // any date will do | |
2282 | tmTimeOnly.tm_mon = 0; | |
2283 | tmTimeOnly.tm_year = 76; | |
2284 | tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves | |
e6ec579c | 2285 | |
77c3e48a | 2286 | wxString tmp, res, fmt; |
68ee7c47 VZ |
2287 | for ( const wxChar *p = format; *p; p++ ) |
2288 | { | |
2289 | if ( *p != _T('%') ) | |
2290 | { | |
2291 | // copy as is | |
2292 | res += *p; | |
b76b015e | 2293 | |
68ee7c47 VZ |
2294 | continue; |
2295 | } | |
e6ec579c | 2296 | |
77c3e48a | 2297 | // set the default format |
68ee7c47 | 2298 | switch ( *++p ) |
77c3e48a VZ |
2299 | { |
2300 | case _T('Y'): // year has 4 digits | |
2301 | fmt = _T("%04d"); | |
2302 | break; | |
2303 | ||
2304 | case _T('j'): // day of year has 3 digits | |
f6bcfd97 | 2305 | case _T('l'): // milliseconds have 3 digits |
77c3e48a VZ |
2306 | fmt = _T("%03d"); |
2307 | break; | |
2308 | ||
59d04dff VZ |
2309 | case _T('w'): // week day as number has only one |
2310 | fmt = _T("%d"); | |
2311 | break; | |
2312 | ||
77c3e48a VZ |
2313 | default: |
2314 | // it's either another valid format specifier in which case | |
2315 | // the format is "%02d" (for all the rest) or we have the | |
2316 | // field width preceding the format in which case it will | |
2317 | // override the default format anyhow | |
2318 | fmt = _T("%02d"); | |
2319 | } | |
2320 | ||
68379eaf | 2321 | bool restart = true; |
fc3398f8 | 2322 | while ( restart ) |
68ee7c47 | 2323 | { |
68379eaf | 2324 | restart = false; |
68ee7c47 | 2325 | |
fc3398f8 VZ |
2326 | // start of the format specification |
2327 | switch ( *p ) | |
2328 | { | |
2329 | case _T('a'): // a weekday name | |
2330 | case _T('A'): | |
68379eaf | 2331 | // second parameter should be true for abbreviated names |
fc3398f8 VZ |
2332 | res += GetWeekDayName(tm.GetWeekDay(), |
2333 | *p == _T('a') ? Name_Abbr : Name_Full); | |
2334 | break; | |
68ee7c47 | 2335 | |
fc3398f8 VZ |
2336 | case _T('b'): // a month name |
2337 | case _T('B'): | |
2338 | res += GetMonthName(tm.mon, | |
2339 | *p == _T('b') ? Name_Abbr : Name_Full); | |
2340 | break; | |
2341 | ||
2342 | case _T('c'): // locale default date and time representation | |
2343 | case _T('x'): // locale default date representation | |
77b88df2 | 2344 | #ifndef __WXWINCE__ |
fc3398f8 VZ |
2345 | // |
2346 | // the problem: there is no way to know what do these format | |
2347 | // specifications correspond to for the current locale. | |
2348 | // | |
2349 | // the solution: use a hack and still use strftime(): first | |
2350 | // find the YEAR which is a year in the strftime() range (1970 | |
2351 | // - 2038) whose Jan 1 falls on the same week day as the Jan 1 | |
2352 | // of the real year. Then make a copy of the format and | |
3103e8a9 | 2353 | // replace all occurrences of YEAR in it with some unique |
fc3398f8 VZ |
2354 | // string not appearing anywhere else in it, then use |
2355 | // strftime() to format the date in year YEAR and then replace | |
2356 | // YEAR back by the real year and the unique replacement | |
3103e8a9 JS |
2357 | // string back with YEAR. Notice that "all occurrences of YEAR" |
2358 | // means all occurrences of 4 digit as well as 2 digit form! | |
fc3398f8 VZ |
2359 | // |
2360 | // the bugs: we assume that neither of %c nor %x contains any | |
2361 | // fields which may change between the YEAR and real year. For | |
2362 | // example, the week number (%U, %W) and the day number (%j) | |
2363 | // will change if one of these years is leap and the other one | |
2364 | // is not! | |
68ee7c47 | 2365 | { |
fc3398f8 VZ |
2366 | // find the YEAR: normally, for any year X, Jan 1 or the |
2367 | // year X + 28 is the same weekday as Jan 1 of X (because | |
2368 | // the weekday advances by 1 for each normal X and by 2 | |
2369 | // for each leap X, hence by 5 every 4 years or by 35 | |
2370 | // which is 0 mod 7 every 28 years) but this rule breaks | |
2371 | // down if there are years between X and Y which are | |
2372 | // divisible by 4 but not leap (i.e. divisible by 100 but | |
2373 | // not 400), hence the correction. | |
2374 | ||
2375 | int yearReal = GetYear(tz); | |
2376 | int mod28 = yearReal % 28; | |
2377 | ||
2378 | // be careful to not go too far - we risk to leave the | |
2379 | // supported range | |
2380 | int year; | |
2381 | if ( mod28 < 10 ) | |
2382 | { | |
2383 | year = 1988 + mod28; // 1988 == 0 (mod 28) | |
2384 | } | |
2385 | else | |
2386 | { | |
2387 | year = 1970 + mod28 - 10; // 1970 == 10 (mod 28) | |
2388 | } | |
e6ec579c | 2389 | |
fc3398f8 VZ |
2390 | int nCentury = year / 100, |
2391 | nCenturyReal = yearReal / 100; | |
c5a1681b | 2392 | |
fc3398f8 VZ |
2393 | // need to adjust for the years divisble by 400 which are |
2394 | // not leap but are counted like leap ones if we just take | |
2395 | // the number of centuries in between for nLostWeekDays | |
2396 | int nLostWeekDays = (nCentury - nCenturyReal) - | |
2397 | (nCentury / 4 - nCenturyReal / 4); | |
c5a1681b | 2398 | |
fc3398f8 VZ |
2399 | // we have to gain back the "lost" weekdays: note that the |
2400 | // effect of this loop is to not do anything to | |
2401 | // nLostWeekDays (which we won't use any more), but to | |
2402 | // (indirectly) set the year correctly | |
2403 | while ( (nLostWeekDays % 7) != 0 ) | |
2404 | { | |
2405 | nLostWeekDays += year++ % 4 ? 1 : 2; | |
2406 | } | |
1d7bc913 RG |
2407 | |
2408 | // Keep year below 2000 so the 2digit year number | |
2409 | // can never match the month or day of the month | |
2410 | if (year>=2000) year-=28; | |
fc3398f8 VZ |
2411 | // at any rate, we couldn't go further than 1988 + 9 + 28! |
2412 | wxASSERT_MSG( year < 2030, | |
2413 | _T("logic error in wxDateTime::Format") ); | |
c5a1681b | 2414 | |
1d7bc913 | 2415 | wxString strYear, strYear2; |
fc3398f8 VZ |
2416 | strYear.Printf(_T("%d"), year); |
2417 | strYear2.Printf(_T("%d"), year % 100); | |
1d7bc913 RG |
2418 | |
2419 | // find four strings not occurring in format (this is surely | |
3103e8a9 | 2420 | // not the optimal way of doing it... improvements welcome!) |
17a1ebd1 | 2421 | wxString fmt2 = format; |
1d7bc913 RG |
2422 | wxString replacement,replacement2,replacement3,replacement4; |
2423 | for (int rnr=1; rnr<5 ; rnr++) { | |
2424 | wxString r = (wxChar)-rnr; | |
2425 | while ( fmt2.Find(r) != wxNOT_FOUND ) | |
2426 | { | |
2427 | r << (wxChar)-rnr; | |
2428 | } | |
2429 | ||
2430 | switch (rnr) { | |
2431 | case 1: replacement=r; break; | |
2432 | case 2: replacement2=r; break; | |
2433 | case 3: replacement3=r; break; | |
2434 | case 4: replacement4=r; break; | |
2435 | } | |
2436 | } | |
3103e8a9 | 2437 | // replace all occurrences of year with it |
17a1ebd1 | 2438 | bool wasReplaced = fmt2.Replace(strYear, replacement) > 0; |
1d7bc913 RG |
2439 | // evaluation order ensures we always attempt the replacement. |
2440 | wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) | wasReplaced ; | |
fc3398f8 VZ |
2441 | |
2442 | // use strftime() to format the same date but in supported | |
2443 | // year | |
2444 | // | |
2445 | // NB: we assume that strftime() doesn't check for the | |
2446 | // date validity and will happily format the date | |
2447 | // corresponding to Feb 29 of a non leap year (which | |
2448 | // may happen if yearReal was leap and year is not) | |
2449 | struct tm tmAdjusted; | |
2450 | InitTm(tmAdjusted); | |
2451 | tmAdjusted.tm_hour = tm.hour; | |
2452 | tmAdjusted.tm_min = tm.min; | |
2453 | tmAdjusted.tm_sec = tm.sec; | |
2454 | tmAdjusted.tm_wday = tm.GetWeekDay(); | |
2455 | tmAdjusted.tm_yday = GetDayOfYear(); | |
2456 | tmAdjusted.tm_mday = tm.mday; | |
2457 | tmAdjusted.tm_mon = tm.mon; | |
2458 | tmAdjusted.tm_year = year - 1900; | |
2459 | tmAdjusted.tm_isdst = 0; // no DST, already adjusted | |
2460 | wxString str = CallStrftime(*p == _T('c') ? _T("%c") | |
2461 | : _T("%x"), | |
2462 | &tmAdjusted); | |
2463 | ||
3103e8a9 | 2464 | // now replace the occurrence of 1999 with the real year |
1d7bc913 RG |
2465 | // we do this in two stages to stop the 2 digit year |
2466 | // matching any substring of the 4 digit year. | |
2467 | // Any day,month hours and minutes components should be safe due | |
2468 | // to ensuring the range of the years. | |
fc3398f8 VZ |
2469 | wxString strYearReal, strYearReal2; |
2470 | strYearReal.Printf(_T("%04d"), yearReal); | |
2471 | strYearReal2.Printf(_T("%02d"), yearReal % 100); | |
1d7bc913 RG |
2472 | str.Replace(strYear, replacement3); |
2473 | str.Replace(strYear2,replacement4); | |
2474 | str.Replace(replacement3, strYearReal); | |
2475 | str.Replace(replacement4, strYearReal2); | |
fc3398f8 | 2476 | |
3103e8a9 | 2477 | // and replace back all occurrences of replacement string |
fc3398f8 VZ |
2478 | if ( wasReplaced ) |
2479 | { | |
2480 | str.Replace(replacement2, strYear2); | |
2481 | str.Replace(replacement, strYear); | |
2482 | } | |
2483 | ||
2484 | res += str; | |
68ee7c47 | 2485 | } |
77b88df2 | 2486 | #else |
ba9bbf13 WS |
2487 | //Use "%m/%d/%y %H:%M:%S" format instead |
2488 | res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"), | |
2489 | tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec); | |
77b88df2 | 2490 | #endif |
fc3398f8 | 2491 | break; |
c5a1681b | 2492 | |
fc3398f8 VZ |
2493 | case _T('d'): // day of a month (01-31) |
2494 | res += wxString::Format(fmt, tm.mday); | |
2495 | break; | |
68ee7c47 | 2496 | |
fc3398f8 VZ |
2497 | case _T('H'): // hour in 24h format (00-23) |
2498 | res += wxString::Format(fmt, tm.hour); | |
2499 | break; | |
2500 | ||
2501 | case _T('I'): // hour in 12h format (01-12) | |
68ee7c47 | 2502 | { |
fc3398f8 VZ |
2503 | // 24h -> 12h, 0h -> 12h too |
2504 | int hour12 = tm.hour > 12 ? tm.hour - 12 | |
2505 | : tm.hour ? tm.hour : 12; | |
2506 | res += wxString::Format(fmt, hour12); | |
68ee7c47 | 2507 | } |
fc3398f8 | 2508 | break; |
c5a1681b | 2509 | |
fc3398f8 VZ |
2510 | case _T('j'): // day of the year |
2511 | res += wxString::Format(fmt, GetDayOfYear(tz)); | |
2512 | break; | |
68ee7c47 | 2513 | |
f6bcfd97 BP |
2514 | case _T('l'): // milliseconds (NOT STANDARD) |
2515 | res += wxString::Format(fmt, GetMillisecond(tz)); | |
2516 | break; | |
2517 | ||
fc3398f8 VZ |
2518 | case _T('m'): // month as a number (01-12) |
2519 | res += wxString::Format(fmt, tm.mon + 1); | |
2520 | break; | |
68ee7c47 | 2521 | |
fc3398f8 VZ |
2522 | case _T('M'): // minute as a decimal number (00-59) |
2523 | res += wxString::Format(fmt, tm.min); | |
2524 | break; | |
68ee7c47 | 2525 | |
fc3398f8 | 2526 | case _T('p'): // AM or PM string |
77b88df2 | 2527 | #ifndef __WXWINCE__ |
fc3398f8 | 2528 | res += CallStrftime(_T("%p"), &tmTimeOnly); |
77b88df2 | 2529 | #else |
ba9bbf13 | 2530 | res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am"); |
77b88df2 | 2531 | #endif |
fc3398f8 | 2532 | break; |
68ee7c47 | 2533 | |
fc3398f8 VZ |
2534 | case _T('S'): // second as a decimal number (00-61) |
2535 | res += wxString::Format(fmt, tm.sec); | |
2536 | break; | |
68ee7c47 | 2537 | |
fc3398f8 VZ |
2538 | case _T('U'): // week number in the year (Sunday 1st week day) |
2539 | res += wxString::Format(fmt, GetWeekOfYear(Sunday_First, tz)); | |
2540 | break; | |
68ee7c47 | 2541 | |
fc3398f8 VZ |
2542 | case _T('W'): // week number in the year (Monday 1st week day) |
2543 | res += wxString::Format(fmt, GetWeekOfYear(Monday_First, tz)); | |
2544 | break; | |
68ee7c47 | 2545 | |
fc3398f8 VZ |
2546 | case _T('w'): // weekday as a number (0-6), Sunday = 0 |
2547 | res += wxString::Format(fmt, tm.GetWeekDay()); | |
2548 | break; | |
68ee7c47 | 2549 | |
fc3398f8 | 2550 | // case _T('x'): -- handled with "%c" |
68ee7c47 | 2551 | |
fc3398f8 VZ |
2552 | case _T('X'): // locale default time representation |
2553 | // just use strftime() to format the time for us | |
77b88df2 | 2554 | #ifndef __WXWINCE__ |
fc3398f8 | 2555 | res += CallStrftime(_T("%X"), &tmTimeOnly); |
77b88df2 | 2556 | #else |
ba9bbf13 | 2557 | res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec); |
77b88df2 | 2558 | #endif |
fc3398f8 | 2559 | break; |
68ee7c47 | 2560 | |
fc3398f8 VZ |
2561 | case _T('y'): // year without century (00-99) |
2562 | res += wxString::Format(fmt, tm.year % 100); | |
2563 | break; | |
68ee7c47 | 2564 | |
fc3398f8 VZ |
2565 | case _T('Y'): // year with century |
2566 | res += wxString::Format(fmt, tm.year); | |
2567 | break; | |
68ee7c47 | 2568 | |
fc3398f8 | 2569 | case _T('Z'): // timezone name |
77b88df2 | 2570 | #ifndef __WXWINCE__ |
fc3398f8 | 2571 | res += CallStrftime(_T("%Z"), &tmTimeOnly); |
77b88df2 | 2572 | #endif |
fc3398f8 | 2573 | break; |
68ee7c47 | 2574 | |
fc3398f8 VZ |
2575 | default: |
2576 | // is it the format width? | |
2577 | fmt.Empty(); | |
2578 | while ( *p == _T('-') || *p == _T('+') || | |
2579 | *p == _T(' ') || wxIsdigit(*p) ) | |
2580 | { | |
2581 | fmt += *p; | |
2582 | } | |
68ee7c47 | 2583 | |
bb8a8478 | 2584 | if ( !fmt.empty() ) |
fc3398f8 VZ |
2585 | { |
2586 | // we've only got the flags and width so far in fmt | |
2587 | fmt.Prepend(_T('%')); | |
2588 | fmt.Append(_T('d')); | |
68ee7c47 | 2589 | |
68379eaf | 2590 | restart = true; |
68ee7c47 | 2591 | |
fc3398f8 VZ |
2592 | break; |
2593 | } | |
68ee7c47 | 2594 | |
fc3398f8 VZ |
2595 | // no, it wasn't the width |
2596 | wxFAIL_MSG(_T("unknown format specificator")); | |
68ee7c47 | 2597 | |
fc3398f8 | 2598 | // fall through and just copy it nevertheless |
68ee7c47 | 2599 | |
fc3398f8 VZ |
2600 | case _T('%'): // a percent sign |
2601 | res += *p; | |
2602 | break; | |
2603 | ||
2604 | case 0: // the end of string | |
2605 | wxFAIL_MSG(_T("missing format at the end of string")); | |
2606 | ||
2607 | // just put the '%' which was the last char in format | |
2608 | res += _T('%'); | |
2609 | break; | |
2610 | } | |
68ee7c47 | 2611 | } |
c5a1681b VZ |
2612 | } |
2613 | ||
68ee7c47 | 2614 | return res; |
b76b015e | 2615 | } |
fcc3d7cb | 2616 | |
cd0b1709 VZ |
2617 | // this function parses a string in (strict) RFC 822 format: see the section 5 |
2618 | // of the RFC for the detailed description, but briefly it's something of the | |
2619 | // form "Sat, 18 Dec 1999 00:48:30 +0100" | |
2620 | // | |
2621 | // this function is "strict" by design - it must reject anything except true | |
2622 | // RFC822 time specs. | |
2623 | // | |
2624 | // TODO a great candidate for using reg exps | |
2625 | const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) | |
2626 | { | |
2627 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
2628 | ||
2629 | const wxChar *p = date; | |
2630 | const wxChar *comma = wxStrchr(p, _T(',')); | |
2631 | if ( comma ) | |
2632 | { | |
2633 | // the part before comma is the weekday | |
2634 | ||
2635 | // skip it for now - we don't use but might check that it really | |
2636 | // corresponds to the specfied date | |
2637 | p = comma + 1; | |
2638 | ||
2639 | if ( *p != _T(' ') ) | |
2640 | { | |
2641 | wxLogDebug(_T("no space after weekday in RFC822 time spec")); | |
2642 | ||
2643 | return (wxChar *)NULL; | |
2644 | } | |
2645 | ||
2646 | p++; // skip space | |
2647 | } | |
2648 | ||
2649 | // the following 1 or 2 digits are the day number | |
2650 | if ( !wxIsdigit(*p) ) | |
2651 | { | |
2652 | wxLogDebug(_T("day number expected in RFC822 time spec, none found")); | |
2653 | ||
2654 | return (wxChar *)NULL; | |
2655 | } | |
2656 | ||
907173e5 | 2657 | wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2658 | if ( wxIsdigit(*p) ) |
2659 | { | |
2660 | day *= 10; | |
907173e5 | 2661 | day = (wxDateTime_t)(day + (*p++ - _T('0'))); |
cd0b1709 VZ |
2662 | } |
2663 | ||
2664 | if ( *p++ != _T(' ') ) | |
2665 | { | |
2666 | return (wxChar *)NULL; | |
2667 | } | |
2668 | ||
2669 | // the following 3 letters specify the month | |
2670 | wxString monName(p, 3); | |
2671 | Month mon; | |
2672 | if ( monName == _T("Jan") ) | |
2673 | mon = Jan; | |
2674 | else if ( monName == _T("Feb") ) | |
2675 | mon = Feb; | |
2676 | else if ( monName == _T("Mar") ) | |
2677 | mon = Mar; | |
2678 | else if ( monName == _T("Apr") ) | |
2679 | mon = Apr; | |
2680 | else if ( monName == _T("May") ) | |
2681 | mon = May; | |
2682 | else if ( monName == _T("Jun") ) | |
2683 | mon = Jun; | |
2684 | else if ( monName == _T("Jul") ) | |
2685 | mon = Jul; | |
2686 | else if ( monName == _T("Aug") ) | |
2687 | mon = Aug; | |
2688 | else if ( monName == _T("Sep") ) | |
2689 | mon = Sep; | |
2690 | else if ( monName == _T("Oct") ) | |
2691 | mon = Oct; | |
2692 | else if ( monName == _T("Nov") ) | |
2693 | mon = Nov; | |
2694 | else if ( monName == _T("Dec") ) | |
2695 | mon = Dec; | |
2696 | else | |
2697 | { | |
2698 | wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str()); | |
2699 | ||
2700 | return (wxChar *)NULL; | |
2701 | } | |
2702 | ||
2703 | p += 3; | |
2704 | ||
2705 | if ( *p++ != _T(' ') ) | |
2706 | { | |
2707 | return (wxChar *)NULL; | |
2708 | } | |
2709 | ||
2710 | // next is the year | |
2711 | if ( !wxIsdigit(*p) ) | |
2712 | { | |
2713 | // no year? | |
2714 | return (wxChar *)NULL; | |
2715 | } | |
2716 | ||
2717 | int year = *p++ - _T('0'); | |
2718 | ||
2719 | if ( !wxIsdigit(*p) ) | |
2720 | { | |
2721 | // should have at least 2 digits in the year | |
2722 | return (wxChar *)NULL; | |
2723 | } | |
2724 | ||
2725 | year *= 10; | |
2726 | year += *p++ - _T('0'); | |
2727 | ||
2728 | // is it a 2 digit year (as per original RFC 822) or a 4 digit one? | |
2729 | if ( wxIsdigit(*p) ) | |
2730 | { | |
2731 | year *= 10; | |
2732 | year += *p++ - _T('0'); | |
2733 | ||
2734 | if ( !wxIsdigit(*p) ) | |
2735 | { | |
2736 | // no 3 digit years please | |
2737 | return (wxChar *)NULL; | |
2738 | } | |
2739 | ||
2740 | year *= 10; | |
2741 | year += *p++ - _T('0'); | |
2742 | } | |
2743 | ||
2744 | if ( *p++ != _T(' ') ) | |
2745 | { | |
2746 | return (wxChar *)NULL; | |
2747 | } | |
2748 | ||
2749 | // time is in the format hh:mm:ss and seconds are optional | |
2750 | if ( !wxIsdigit(*p) ) | |
2751 | { | |
2752 | return (wxChar *)NULL; | |
2753 | } | |
2754 | ||
42841dfc | 2755 | wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2756 | |
2757 | if ( !wxIsdigit(*p) ) | |
2758 | { | |
2759 | return (wxChar *)NULL; | |
2760 | } | |
2761 | ||
2762 | hour *= 10; | |
42841dfc | 2763 | hour = (wxDateTime_t)(hour + (*p++ - _T('0'))); |
cd0b1709 VZ |
2764 | |
2765 | if ( *p++ != _T(':') ) | |
2766 | { | |
2767 | return (wxChar *)NULL; | |
2768 | } | |
2769 | ||
2770 | if ( !wxIsdigit(*p) ) | |
2771 | { | |
2772 | return (wxChar *)NULL; | |
2773 | } | |
2774 | ||
42841dfc | 2775 | wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2776 | |
2777 | if ( !wxIsdigit(*p) ) | |
2778 | { | |
2779 | return (wxChar *)NULL; | |
2780 | } | |
2781 | ||
2782 | min *= 10; | |
42841dfc | 2783 | min = (wxDateTime_t)(min + *p++ - _T('0')); |
cd0b1709 VZ |
2784 | |
2785 | wxDateTime_t sec = 0; | |
2786 | if ( *p++ == _T(':') ) | |
2787 | { | |
2788 | if ( !wxIsdigit(*p) ) | |
2789 | { | |
2790 | return (wxChar *)NULL; | |
2791 | } | |
2792 | ||
42841dfc | 2793 | sec = (wxDateTime_t)(*p++ - _T('0')); |
cd0b1709 VZ |
2794 | |
2795 | if ( !wxIsdigit(*p) ) | |
2796 | { | |
2797 | return (wxChar *)NULL; | |
2798 | } | |
2799 | ||
2800 | sec *= 10; | |
42841dfc | 2801 | sec = (wxDateTime_t)(sec + *p++ - _T('0')); |
cd0b1709 VZ |
2802 | } |
2803 | ||
2804 | if ( *p++ != _T(' ') ) | |
2805 | { | |
2806 | return (wxChar *)NULL; | |
2807 | } | |
2808 | ||
2809 | // and now the interesting part: the timezone | |
ba9bbf13 | 2810 | int offset wxDUMMY_INITIALIZE(0); |
cd0b1709 VZ |
2811 | if ( *p == _T('-') || *p == _T('+') ) |
2812 | { | |
2813 | // the explicit offset given: it has the form of hhmm | |
2814 | bool plus = *p++ == _T('+'); | |
2815 | ||
2816 | if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) | |
2817 | { | |
2818 | return (wxChar *)NULL; | |
2819 | } | |
2820 | ||
2821 | // hours | |
d26adb9d | 2822 | offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0'))); |
cd0b1709 VZ |
2823 | |
2824 | p += 2; | |
2825 | ||
2826 | if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) | |
2827 | { | |
2828 | return (wxChar *)NULL; | |
2829 | } | |
2830 | ||
2831 | // minutes | |
2832 | offset += 10*(*p - _T('0')) + (*(p + 1) - _T('0')); | |
2833 | ||
2834 | if ( !plus ) | |
2835 | { | |
2836 | offset = -offset; | |
2837 | } | |
2838 | ||
2839 | p += 2; | |
2840 | } | |
2841 | else | |
2842 | { | |
2843 | // the symbolic timezone given: may be either military timezone or one | |
2844 | // of standard abbreviations | |
2845 | if ( !*(p + 1) ) | |
2846 | { | |
2847 | // military: Z = UTC, J unused, A = -1, ..., Y = +12 | |
2848 | static const int offsets[26] = | |
2849 | { | |
2850 | //A B C D E F G H I J K L M | |
2851 | -1, -2, -3, -4, -5, -6, -7, -8, -9, 0, -10, -11, -12, | |
2852 | //N O P R Q S T U V W Z Y Z | |
2853 | +1, +2, +3, +4, +5, +6, +7, +8, +9, +10, +11, +12, 0 | |
2854 | }; | |
2855 | ||
2856 | if ( *p < _T('A') || *p > _T('Z') || *p == _T('J') ) | |
2857 | { | |
2858 | wxLogDebug(_T("Invalid militaty timezone '%c'"), *p); | |
2859 | ||
2860 | return (wxChar *)NULL; | |
2861 | } | |
2862 | ||
2863 | offset = offsets[*p++ - _T('A')]; | |
2864 | } | |
2865 | else | |
2866 | { | |
2867 | // abbreviation | |
2868 | wxString tz = p; | |
2869 | if ( tz == _T("UT") || tz == _T("UTC") || tz == _T("GMT") ) | |
2870 | offset = 0; | |
2871 | else if ( tz == _T("AST") ) | |
2872 | offset = AST - GMT0; | |
2873 | else if ( tz == _T("ADT") ) | |
2874 | offset = ADT - GMT0; | |
2875 | else if ( tz == _T("EST") ) | |
2876 | offset = EST - GMT0; | |
2877 | else if ( tz == _T("EDT") ) | |
2878 | offset = EDT - GMT0; | |
2879 | else if ( tz == _T("CST") ) | |
2880 | offset = CST - GMT0; | |
2881 | else if ( tz == _T("CDT") ) | |
2882 | offset = CDT - GMT0; | |
2883 | else if ( tz == _T("MST") ) | |
2884 | offset = MST - GMT0; | |
2885 | else if ( tz == _T("MDT") ) | |
2886 | offset = MDT - GMT0; | |
2887 | else if ( tz == _T("PST") ) | |
2888 | offset = PST - GMT0; | |
2889 | else if ( tz == _T("PDT") ) | |
2890 | offset = PDT - GMT0; | |
2891 | else | |
2892 | { | |
2893 | wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p); | |
2894 | ||
2895 | return (wxChar *)NULL; | |
2896 | } | |
2897 | ||
2898 | p += tz.length(); | |
2899 | } | |
96531a71 | 2900 | |
cd0b1709 | 2901 | // make it minutes |
d26adb9d | 2902 | offset *= MIN_PER_HOUR; |
cd0b1709 VZ |
2903 | } |
2904 | ||
d26adb9d | 2905 | // the spec was correct, construct the date from the values we found |
cd0b1709 | 2906 | Set(day, mon, year, hour, min, sec); |
18c9aebe | 2907 | MakeFromTimezone(TimeZone((wxDateTime_t)(offset*SEC_PER_MIN))); |
cd0b1709 VZ |
2908 | |
2909 | return p; | |
2910 | } | |
2911 | ||
64f9c100 | 2912 | #ifdef __WINDOWS__ |
e44501a0 | 2913 | |
be4e7abf VZ |
2914 | // returns the string containing strftime() format used for short dates in the |
2915 | // current locale or an empty string | |
2916 | static wxString GetLocaleDateFormat() | |
64f9c100 | 2917 | { |
be4e7abf VZ |
2918 | wxString fmtWX; |
2919 | ||
05eb2d40 VZ |
2920 | // there is no setlocale() under Windows CE, so just always query the |
2921 | // system there | |
2922 | #ifndef __WXWINCE__ | |
64f9c100 | 2923 | if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 ) |
e44501a0 | 2924 | #endif |
64f9c100 VS |
2925 | { |
2926 | // The locale was programatically set to non-C. We assume that this was | |
2927 | // done using wxLocale, in which case thread's current locale is also | |
2928 | // set to correct LCID value and we can use GetLocaleInfo to determine | |
2929 | // the correct formatting string: | |
c5fe22f8 JS |
2930 | #ifdef __WXWINCE__ |
2931 | LCID lcid = LOCALE_USER_DEFAULT; | |
2932 | #else | |
64f9c100 | 2933 | LCID lcid = GetThreadLocale(); |
c5fe22f8 | 2934 | #endif |
be4e7abf VZ |
2935 | // according to MSDN 80 chars is max allowed for short date format |
2936 | wxChar fmt[81]; | |
2937 | if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) ) | |
64f9c100 | 2938 | { |
be4e7abf VZ |
2939 | wxChar chLast = _T('\0'); |
2940 | size_t lastCount = 0; | |
2941 | for ( const wxChar *p = fmt; /* NUL handled inside */; p++ ) | |
64f9c100 | 2942 | { |
be4e7abf | 2943 | if ( *p == chLast ) |
64f9c100 | 2944 | { |
be4e7abf VZ |
2945 | lastCount++; |
2946 | continue; | |
64f9c100 | 2947 | } |
be4e7abf VZ |
2948 | |
2949 | switch ( *p ) | |
64f9c100 | 2950 | { |
be4e7abf VZ |
2951 | // these characters come in groups, start counting them |
2952 | case _T('d'): | |
2953 | case _T('M'): | |
2954 | case _T('y'): | |
2955 | case _T('g'): | |
2956 | chLast = *p; | |
2957 | lastCount = 1; | |
2958 | break; | |
2959 | ||
2960 | default: | |
2961 | // first deal with any special characters we have had | |
2962 | if ( lastCount ) | |
2963 | { | |
2964 | switch ( chLast ) | |
2965 | { | |
2966 | case _T('d'): | |
2967 | switch ( lastCount ) | |
2968 | { | |
2969 | case 1: // d | |
2970 | case 2: // dd | |
2971 | // these two are the same as we | |
2972 | // don't distinguish between 1 and | |
2973 | // 2 digits for days | |
2974 | fmtWX += _T("%d"); | |
2975 | break; | |
2976 | ||
2977 | case 3: // ddd | |
2978 | fmtWX += _T("%a"); | |
2979 | break; | |
2980 | ||
2981 | case 4: // dddd | |
2982 | fmtWX += _T("%A"); | |
2983 | break; | |
2984 | ||
2985 | default: | |
2986 | wxFAIL_MSG( _T("too many 'd's") ); | |
2987 | } | |
2988 | break; | |
2989 | ||
2990 | case _T('M'): | |
2991 | switch ( lastCount ) | |
2992 | { | |
2993 | case 1: // M | |
2994 | case 2: // MM | |
2995 | // as for 'd' and 'dd' above | |
2996 | fmtWX += _T("%m"); | |
2997 | break; | |
2998 | ||
2999 | case 3: | |
3000 | fmtWX += _T("%b"); | |
3001 | break; | |
3002 | ||
3003 | case 4: | |
3004 | fmtWX += _T("%B"); | |
3005 | break; | |
3006 | ||
3007 | default: | |
3008 | wxFAIL_MSG( _T("too many 'M's") ); | |
3009 | } | |
3010 | break; | |
3011 | ||
3012 | case _T('y'): | |
3013 | switch ( lastCount ) | |
3014 | { | |
3015 | case 1: // y | |
3016 | case 2: // yy | |
3017 | fmtWX += _T("%y"); | |
3018 | break; | |
3019 | ||
3020 | case 4: // yyyy | |
3021 | fmtWX += _T("%Y"); | |
3022 | break; | |
3023 | ||
3024 | default: | |
3025 | wxFAIL_MSG( _T("wrong number of 'y's") ); | |
3026 | } | |
3027 | break; | |
3028 | ||
3029 | case _T('g'): | |
3030 | // strftime() doesn't have era string, | |
3031 | // ignore this format | |
3032 | wxASSERT_MSG( lastCount <= 2, | |
3033 | _T("too many 'g's") ); | |
3034 | break; | |
3035 | ||
3036 | default: | |
3037 | wxFAIL_MSG( _T("unreachable") ); | |
3038 | } | |
3039 | ||
3040 | chLast = _T('\0'); | |
3041 | lastCount = 0; | |
3042 | } | |
3043 | ||
3044 | // not a special character so must be just a separator, | |
3045 | // treat as is | |
3046 | if ( *p != _T('\0') ) | |
3047 | { | |
3048 | if ( *p == _T('%') ) | |
3049 | { | |
3050 | // this one needs to be escaped | |
3051 | fmtWX += _T('%'); | |
3052 | } | |
3053 | ||
3054 | fmtWX += *p; | |
3055 | } | |
64f9c100 | 3056 | } |
be4e7abf VZ |
3057 | |
3058 | if ( *p == _T('\0') ) | |
3059 | break; | |
64f9c100 VS |
3060 | } |
3061 | } | |
be4e7abf VZ |
3062 | //else: GetLocaleInfo() failed, leave fmtDate value unchanged and |
3063 | // try our luck with the default formats | |
64f9c100 | 3064 | } |
be4e7abf VZ |
3065 | //else: default C locale, default formats should work |
3066 | ||
3067 | return fmtWX; | |
64f9c100 | 3068 | } |
e44501a0 | 3069 | |
64f9c100 VS |
3070 | #endif // __WINDOWS__ |
3071 | ||
f0f951fa VZ |
3072 | const wxChar *wxDateTime::ParseFormat(const wxChar *date, |
3073 | const wxChar *format, | |
3074 | const wxDateTime& dateDef) | |
cd0b1709 VZ |
3075 | { |
3076 | wxCHECK_MSG( date && format, (wxChar *)NULL, | |
f0f951fa | 3077 | _T("NULL pointer in wxDateTime::ParseFormat()") ); |
cd0b1709 | 3078 | |
f0f951fa VZ |
3079 | wxString str; |
3080 | unsigned long num; | |
cd0b1709 | 3081 | |
f0f951fa | 3082 | // what fields have we found? |
68379eaf WS |
3083 | bool haveWDay = false, |
3084 | haveYDay = false, | |
3085 | haveDay = false, | |
3086 | haveMon = false, | |
3087 | haveYear = false, | |
3088 | haveHour = false, | |
3089 | haveMin = false, | |
3090 | haveSec = false; | |
3091 | ||
3092 | bool hourIsIn12hFormat = false, // or in 24h one? | |
3093 | isPM = false; // AM by default | |
f0f951fa VZ |
3094 | |
3095 | // and the value of the items we have (init them to get rid of warnings) | |
3096 | wxDateTime_t sec = 0, | |
3097 | min = 0, | |
3098 | hour = 0; | |
3099 | WeekDay wday = Inv_WeekDay; | |
3100 | wxDateTime_t yday = 0, | |
3101 | mday = 0; | |
3102 | wxDateTime::Month mon = Inv_Month; | |
3103 | int year = 0; | |
3104 | ||
3105 | const wxChar *input = date; | |
3106 | for ( const wxChar *fmt = format; *fmt; fmt++ ) | |
3107 | { | |
3108 | if ( *fmt != _T('%') ) | |
3109 | { | |
3110 | if ( wxIsspace(*fmt) ) | |
3111 | { | |
3112 | // a white space in the format string matches 0 or more white | |
3113 | // spaces in the input | |
3114 | while ( wxIsspace(*input) ) | |
3115 | { | |
3116 | input++; | |
3117 | } | |
3118 | } | |
3119 | else // !space | |
3120 | { | |
3121 | // any other character (not whitespace, not '%') must be | |
3122 | // matched by itself in the input | |
3123 | if ( *input++ != *fmt ) | |
3124 | { | |
3125 | // no match | |
3126 | return (wxChar *)NULL; | |
3127 | } | |
3128 | } | |
3129 | ||
3130 | // done with this format char | |
3131 | continue; | |
3132 | } | |
3133 | ||
3134 | // start of a format specification | |
f6bcfd97 BP |
3135 | |
3136 | // parse the optional width | |
3137 | size_t width = 0; | |
1c193821 | 3138 | while ( wxIsdigit(*++fmt) ) |
f6bcfd97 BP |
3139 | { |
3140 | width *= 10; | |
3141 | width += *fmt - _T('0'); | |
3142 | } | |
3143 | ||
4147efe9 VZ |
3144 | // the default widths for the various fields |
3145 | if ( !width ) | |
3146 | { | |
3147 | switch ( *fmt ) | |
3148 | { | |
3149 | case _T('Y'): // year has 4 digits | |
3150 | width = 4; | |
3151 | break; | |
3152 | ||
3153 | case _T('j'): // day of year has 3 digits | |
3154 | case _T('l'): // milliseconds have 3 digits | |
3155 | width = 3; | |
3156 | break; | |
3157 | ||
3158 | case _T('w'): // week day as number has only one | |
3159 | width = 1; | |
3160 | break; | |
3161 | ||
3162 | default: | |
3163 | // default for all other fields | |
3164 | width = 2; | |
3165 | } | |
3166 | } | |
3167 | ||
f6bcfd97 BP |
3168 | // then the format itself |
3169 | switch ( *fmt ) | |
f0f951fa VZ |
3170 | { |
3171 | case _T('a'): // a weekday name | |
3172 | case _T('A'): | |
3173 | { | |
3174 | int flag = *fmt == _T('a') ? Name_Abbr : Name_Full; | |
3175 | wday = GetWeekDayFromName(GetAlphaToken(input), flag); | |
3176 | if ( wday == Inv_WeekDay ) | |
3177 | { | |
3178 | // no match | |
3179 | return (wxChar *)NULL; | |
3180 | } | |
3181 | } | |
68379eaf | 3182 | haveWDay = true; |
f0f951fa VZ |
3183 | break; |
3184 | ||
3185 | case _T('b'): // a month name | |
3186 | case _T('B'): | |
3187 | { | |
3188 | int flag = *fmt == _T('b') ? Name_Abbr : Name_Full; | |
3189 | mon = GetMonthFromName(GetAlphaToken(input), flag); | |
3190 | if ( mon == Inv_Month ) | |
3191 | { | |
3192 | // no match | |
3193 | return (wxChar *)NULL; | |
3194 | } | |
3195 | } | |
68379eaf | 3196 | haveMon = true; |
f0f951fa VZ |
3197 | break; |
3198 | ||
3199 | case _T('c'): // locale default date and time representation | |
3200 | { | |
3201 | wxDateTime dt; | |
3202 | ||
3203 | // this is the format which corresponds to ctime() output | |
3204 | // and strptime("%c") should parse it, so try it first | |
41acf5c0 | 3205 | static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y"); |
f0f951fa VZ |
3206 | |
3207 | const wxChar *result = dt.ParseFormat(input, fmtCtime); | |
3208 | if ( !result ) | |
3209 | { | |
3210 | result = dt.ParseFormat(input, _T("%x %X")); | |
3211 | } | |
3212 | ||
3213 | if ( !result ) | |
3214 | { | |
3215 | result = dt.ParseFormat(input, _T("%X %x")); | |
3216 | } | |
3217 | ||
3218 | if ( !result ) | |
3219 | { | |
3220 | // we've tried everything and still no match | |
3221 | return (wxChar *)NULL; | |
3222 | } | |
3223 | ||
be4017f8 VZ |
3224 | Tm tm = dt.GetTm(); |
3225 | ||
3226 | haveDay = haveMon = haveYear = | |
68379eaf | 3227 | haveHour = haveMin = haveSec = true; |
be4017f8 VZ |
3228 | |
3229 | hour = tm.hour; | |
3230 | min = tm.min; | |
3231 | sec = tm.sec; | |
3232 | ||
3233 | year = tm.year; | |
3234 | mon = tm.mon; | |
3235 | mday = tm.mday; | |
3236 | ||
f0f951fa VZ |
3237 | input = result; |
3238 | } | |
3239 | break; | |
3240 | ||
3241 | case _T('d'): // day of a month (01-31) | |
f6bcfd97 BP |
3242 | if ( !GetNumericToken(width, input, &num) || |
3243 | (num > 31) || (num < 1) ) | |
f0f951fa VZ |
3244 | { |
3245 | // no match | |
3246 | return (wxChar *)NULL; | |
3247 | } | |
3248 | ||
3249 | // we can't check whether the day range is correct yet, will | |
3250 | // do it later - assume ok for now | |
68379eaf | 3251 | haveDay = true; |
f0f951fa VZ |
3252 | mday = (wxDateTime_t)num; |
3253 | break; | |
5f287370 | 3254 | |
f0f951fa | 3255 | case _T('H'): // hour in 24h format (00-23) |
f6bcfd97 | 3256 | if ( !GetNumericToken(width, input, &num) || (num > 23) ) |
f0f951fa VZ |
3257 | { |
3258 | // no match | |
3259 | return (wxChar *)NULL; | |
3260 | } | |
3261 | ||
68379eaf | 3262 | haveHour = true; |
f0f951fa VZ |
3263 | hour = (wxDateTime_t)num; |
3264 | break; | |
3265 | ||
3266 | case _T('I'): // hour in 12h format (01-12) | |
f6bcfd97 | 3267 | if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) |
f0f951fa VZ |
3268 | { |
3269 | // no match | |
3270 | return (wxChar *)NULL; | |
3271 | } | |
3272 | ||
68379eaf WS |
3273 | haveHour = true; |
3274 | hourIsIn12hFormat = true; | |
479cd5de | 3275 | hour = (wxDateTime_t)(num % 12); // 12 should be 0 |
f0f951fa VZ |
3276 | break; |
3277 | ||
3278 | case _T('j'): // day of the year | |
f6bcfd97 | 3279 | if ( !GetNumericToken(width, input, &num) || !num || (num > 366) ) |
f0f951fa VZ |
3280 | { |
3281 | // no match | |
3282 | return (wxChar *)NULL; | |
3283 | } | |
3284 | ||
68379eaf | 3285 | haveYDay = true; |
f0f951fa VZ |
3286 | yday = (wxDateTime_t)num; |
3287 | break; | |
3288 | ||
3289 | case _T('m'): // month as a number (01-12) | |
f6bcfd97 | 3290 | if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) |
f0f951fa VZ |
3291 | { |
3292 | // no match | |
3293 | return (wxChar *)NULL; | |
3294 | } | |
3295 | ||
68379eaf | 3296 | haveMon = true; |
be4017f8 | 3297 | mon = (Month)(num - 1); |
f0f951fa VZ |
3298 | break; |
3299 | ||
3300 | case _T('M'): // minute as a decimal number (00-59) | |
f6bcfd97 | 3301 | if ( !GetNumericToken(width, input, &num) || (num > 59) ) |
f0f951fa VZ |
3302 | { |
3303 | // no match | |
3304 | return (wxChar *)NULL; | |
3305 | } | |
3306 | ||
68379eaf | 3307 | haveMin = true; |
f0f951fa VZ |
3308 | min = (wxDateTime_t)num; |
3309 | break; | |
3310 | ||
3311 | case _T('p'): // AM or PM string | |
3312 | { | |
3313 | wxString am, pm, token = GetAlphaToken(input); | |
3314 | ||
3315 | GetAmPmStrings(&am, &pm); | |
bb8a8478 | 3316 | if (am.empty() && pm.empty()) |
0308fd61 | 3317 | return (wxChar *)NULL; // no am/pm strings defined |
f0f951fa VZ |
3318 | if ( token.CmpNoCase(pm) == 0 ) |
3319 | { | |
68379eaf | 3320 | isPM = true; |
f0f951fa VZ |
3321 | } |
3322 | else if ( token.CmpNoCase(am) != 0 ) | |
3323 | { | |
3324 | // no match | |
3325 | return (wxChar *)NULL; | |
3326 | } | |
3327 | } | |
3328 | break; | |
3329 | ||
3330 | case _T('r'): // time as %I:%M:%S %p | |
3331 | { | |
3332 | wxDateTime dt; | |
3333 | input = dt.ParseFormat(input, _T("%I:%M:%S %p")); | |
3334 | if ( !input ) | |
3335 | { | |
3336 | // no match | |
3337 | return (wxChar *)NULL; | |
3338 | } | |
3339 | ||
68379eaf | 3340 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3341 | |
3342 | Tm tm = dt.GetTm(); | |
3343 | hour = tm.hour; | |
3344 | min = tm.min; | |
3345 | sec = tm.sec; | |
3346 | } | |
3347 | break; | |
3348 | ||
3349 | case _T('R'): // time as %H:%M | |
3350 | { | |
3351 | wxDateTime dt; | |
3352 | input = dt.ParseFormat(input, _T("%H:%M")); | |
3353 | if ( !input ) | |
3354 | { | |
3355 | // no match | |
3356 | return (wxChar *)NULL; | |
3357 | } | |
3358 | ||
68379eaf | 3359 | haveHour = haveMin = true; |
f0f951fa VZ |
3360 | |
3361 | Tm tm = dt.GetTm(); | |
3362 | hour = tm.hour; | |
3363 | min = tm.min; | |
3364 | } | |
7d3e806d | 3365 | break; |
f0f951fa VZ |
3366 | |
3367 | case _T('S'): // second as a decimal number (00-61) | |
f6bcfd97 | 3368 | if ( !GetNumericToken(width, input, &num) || (num > 61) ) |
f0f951fa VZ |
3369 | { |
3370 | // no match | |
3371 | return (wxChar *)NULL; | |
3372 | } | |
3373 | ||
68379eaf | 3374 | haveSec = true; |
f0f951fa VZ |
3375 | sec = (wxDateTime_t)num; |
3376 | break; | |
3377 | ||
3378 | case _T('T'): // time as %H:%M:%S | |
3379 | { | |
3380 | wxDateTime dt; | |
3381 | input = dt.ParseFormat(input, _T("%H:%M:%S")); | |
3382 | if ( !input ) | |
3383 | { | |
3384 | // no match | |
3385 | return (wxChar *)NULL; | |
3386 | } | |
3387 | ||
68379eaf | 3388 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3389 | |
3390 | Tm tm = dt.GetTm(); | |
3391 | hour = tm.hour; | |
3392 | min = tm.min; | |
3393 | sec = tm.sec; | |
3394 | } | |
be4017f8 | 3395 | break; |
f0f951fa VZ |
3396 | |
3397 | case _T('w'): // weekday as a number (0-6), Sunday = 0 | |
f6bcfd97 | 3398 | if ( !GetNumericToken(width, input, &num) || (wday > 6) ) |
f0f951fa VZ |
3399 | { |
3400 | // no match | |
3401 | return (wxChar *)NULL; | |
3402 | } | |
3403 | ||
68379eaf | 3404 | haveWDay = true; |
f0f951fa VZ |
3405 | wday = (WeekDay)num; |
3406 | break; | |
3407 | ||
3408 | case _T('x'): // locale default date representation | |
3409 | #ifdef HAVE_STRPTIME | |
2423ef22 | 3410 | // try using strptime() -- it may fail even if the input is |
f0f951fa | 3411 | // correct but the date is out of range, so we will fall back |
2423ef22 | 3412 | // to our generic code anyhow |
f0f951fa VZ |
3413 | { |
3414 | struct tm tm; | |
2423ef22 VZ |
3415 | |
3416 | const wxChar *result = CallStrptime(input, "%x", &tm); | |
f0f951fa VZ |
3417 | if ( result ) |
3418 | { | |
3419 | input = result; | |
3420 | ||
68379eaf | 3421 | haveDay = haveMon = haveYear = true; |
f0f951fa VZ |
3422 | |
3423 | year = 1900 + tm.tm_year; | |
3424 | mon = (Month)tm.tm_mon; | |
3425 | mday = tm.tm_mday; | |
3426 | ||
3427 | break; | |
3428 | } | |
3429 | } | |
3430 | #endif // HAVE_STRPTIME | |
3431 | ||
f0f951fa VZ |
3432 | { |
3433 | wxDateTime dt; | |
be4e7abf VZ |
3434 | wxString fmtDate, |
3435 | fmtDateAlt; | |
f0f951fa | 3436 | |
64f9c100 VS |
3437 | #ifdef __WINDOWS__ |
3438 | // The above doesn't work for all locales, try to query | |
3439 | // Windows for the right way of formatting the date: | |
be4e7abf VZ |
3440 | fmtDate = GetLocaleDateFormat(); |
3441 | if ( fmtDate.empty() ) | |
64f9c100 | 3442 | #endif |
be4e7abf VZ |
3443 | { |
3444 | if ( IsWestEuropeanCountry(GetCountry()) || | |
3445 | GetCountry() == Russia ) | |
3446 | { | |
3447 | fmtDate = _T("%d/%m/%y"); | |
3448 | fmtDateAlt = _T("%m/%d/%y"); | |
3449 | } | |
3450 | else // assume USA | |
3451 | { | |
3452 | fmtDate = _T("%m/%d/%y"); | |
3453 | fmtDateAlt = _T("%d/%m/%y"); | |
3454 | } | |
3455 | } | |
64f9c100 | 3456 | |
f0f951fa | 3457 | const wxChar *result = dt.ParseFormat(input, fmtDate); |
41acf5c0 | 3458 | |
be4e7abf | 3459 | if ( !result && !fmtDateAlt.empty() ) |
41acf5c0 VZ |
3460 | { |
3461 | // ok, be nice and try another one | |
3462 | result = dt.ParseFormat(input, fmtDateAlt); | |
3463 | } | |
3464 | ||
f0f951fa VZ |
3465 | if ( !result ) |
3466 | { | |
3467 | // bad luck | |
3468 | return (wxChar *)NULL; | |
3469 | } | |
3470 | ||
3471 | Tm tm = dt.GetTm(); | |
3472 | ||
68379eaf | 3473 | haveDay = haveMon = haveYear = true; |
f0f951fa VZ |
3474 | |
3475 | year = tm.year; | |
3476 | mon = tm.mon; | |
3477 | mday = tm.mday; | |
3478 | ||
3479 | input = result; | |
3480 | } | |
3481 | ||
3482 | break; | |
3483 | ||
3484 | case _T('X'): // locale default time representation | |
3485 | #ifdef HAVE_STRPTIME | |
3486 | { | |
3487 | // use strptime() to do it for us (FIXME !Unicode friendly) | |
3488 | struct tm tm; | |
2423ef22 | 3489 | input = CallStrptime(input, "%X", &tm); |
f0f951fa VZ |
3490 | if ( !input ) |
3491 | { | |
3492 | return (wxChar *)NULL; | |
3493 | } | |
3494 | ||
68379eaf | 3495 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3496 | |
3497 | hour = tm.tm_hour; | |
3498 | min = tm.tm_min; | |
3499 | sec = tm.tm_sec; | |
3500 | } | |
3501 | #else // !HAVE_STRPTIME | |
3502 | // TODO under Win32 we can query the LOCALE_ITIME system | |
3503 | // setting which says whether the default time format is | |
3504 | // 24 or 12 hour | |
3505 | { | |
3506 | // try to parse what follows as "%H:%M:%S" and, if this | |
3507 | // fails, as "%I:%M:%S %p" - this should catch the most | |
3508 | // common cases | |
3509 | wxDateTime dt; | |
3510 | ||
3511 | const wxChar *result = dt.ParseFormat(input, _T("%T")); | |
3512 | if ( !result ) | |
3513 | { | |
3514 | result = dt.ParseFormat(input, _T("%r")); | |
3515 | } | |
3516 | ||
3517 | if ( !result ) | |
3518 | { | |
3519 | // no match | |
3520 | return (wxChar *)NULL; | |
3521 | } | |
3522 | ||
68379eaf | 3523 | haveHour = haveMin = haveSec = true; |
f0f951fa VZ |
3524 | |
3525 | Tm tm = dt.GetTm(); | |
3526 | hour = tm.hour; | |
3527 | min = tm.min; | |
3528 | sec = tm.sec; | |
3529 | ||
3530 | input = result; | |
3531 | } | |
3532 | #endif // HAVE_STRPTIME/!HAVE_STRPTIME | |
3533 | break; | |
3534 | ||
3535 | case _T('y'): // year without century (00-99) | |
f6bcfd97 | 3536 | if ( !GetNumericToken(width, input, &num) || (num > 99) ) |
f0f951fa VZ |
3537 | { |
3538 | // no match | |
3539 | return (wxChar *)NULL; | |
3540 | } | |
3541 | ||
68379eaf | 3542 | haveYear = true; |
f6bcfd97 BP |
3543 | |
3544 | // TODO should have an option for roll over date instead of | |
3545 | // hard coding it here | |
3546 | year = (num > 30 ? 1900 : 2000) + (wxDateTime_t)num; | |
f0f951fa VZ |
3547 | break; |
3548 | ||
3549 | case _T('Y'): // year with century | |
f6bcfd97 | 3550 | if ( !GetNumericToken(width, input, &num) ) |
f0f951fa VZ |
3551 | { |
3552 | // no match | |
3553 | return (wxChar *)NULL; | |
3554 | } | |
3555 | ||
68379eaf | 3556 | haveYear = true; |
be4017f8 | 3557 | year = (wxDateTime_t)num; |
f0f951fa VZ |
3558 | break; |
3559 | ||
3560 | case _T('Z'): // timezone name | |
3561 | wxFAIL_MSG(_T("TODO")); | |
3562 | break; | |
3563 | ||
3564 | case _T('%'): // a percent sign | |
3565 | if ( *input++ != _T('%') ) | |
3566 | { | |
3567 | // no match | |
3568 | return (wxChar *)NULL; | |
3569 | } | |
3570 | break; | |
3571 | ||
3572 | case 0: // the end of string | |
3573 | wxFAIL_MSG(_T("unexpected format end")); | |
3574 | ||
3575 | // fall through | |
3576 | ||
3577 | default: // not a known format spec | |
3578 | return (wxChar *)NULL; | |
3579 | } | |
3580 | } | |
3581 | ||
3582 | // format matched, try to construct a date from what we have now | |
3583 | Tm tmDef; | |
3584 | if ( dateDef.IsValid() ) | |
3585 | { | |
3586 | // take this date as default | |
3587 | tmDef = dateDef.GetTm(); | |
3588 | } | |
c3302e7e | 3589 | else if ( IsValid() ) |
f0f951fa VZ |
3590 | { |
3591 | // if this date is valid, don't change it | |
3592 | tmDef = GetTm(); | |
3593 | } | |
3594 | else | |
3595 | { | |
3596 | // no default and this date is invalid - fall back to Today() | |
3597 | tmDef = Today().GetTm(); | |
3598 | } | |
3599 | ||
3600 | Tm tm = tmDef; | |
3601 | ||
3602 | // set the date | |
3603 | if ( haveYear ) | |
3604 | { | |
3605 | tm.year = year; | |
3606 | } | |
3607 | ||
3608 | // TODO we don't check here that the values are consistent, if both year | |
3609 | // day and month/day were found, we just ignore the year day and we | |
3610 | // also always ignore the week day | |
3611 | if ( haveMon && haveDay ) | |
3612 | { | |
be4017f8 VZ |
3613 | if ( mday > GetNumOfDaysInMonth(tm.year, mon) ) |
3614 | { | |
3615 | wxLogDebug(_T("bad month day in wxDateTime::ParseFormat")); | |
3616 | ||
3617 | return (wxChar *)NULL; | |
3618 | } | |
3619 | ||
f0f951fa VZ |
3620 | tm.mon = mon; |
3621 | tm.mday = mday; | |
3622 | } | |
3623 | else if ( haveYDay ) | |
3624 | { | |
be4017f8 VZ |
3625 | if ( yday > GetNumberOfDays(tm.year) ) |
3626 | { | |
3627 | wxLogDebug(_T("bad year day in wxDateTime::ParseFormat")); | |
3628 | ||
3629 | return (wxChar *)NULL; | |
3630 | } | |
3631 | ||
f0f951fa VZ |
3632 | Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm(); |
3633 | ||
3634 | tm.mon = tm2.mon; | |
3635 | tm.mday = tm2.mday; | |
3636 | } | |
3637 | ||
3638 | // deal with AM/PM | |
3639 | if ( haveHour && hourIsIn12hFormat && isPM ) | |
3640 | { | |
3641 | // translate to 24hour format | |
3642 | hour += 12; | |
3643 | } | |
3644 | //else: either already in 24h format or no translation needed | |
3645 | ||
3646 | // set the time | |
3647 | if ( haveHour ) | |
3648 | { | |
5f287370 | 3649 | tm.hour = hour; |
f0f951fa VZ |
3650 | } |
3651 | ||
3652 | if ( haveMin ) | |
3653 | { | |
3654 | tm.min = min; | |
3655 | } | |
3656 | ||
3657 | if ( haveSec ) | |
3658 | { | |
3659 | tm.sec = sec; | |
3660 | } | |
3661 | ||
3662 | Set(tm); | |
3663 | ||
88a036ce VZ |
3664 | // finally check that the week day is consistent -- if we had it |
3665 | if ( haveWDay && GetWeekDay() != wday ) | |
3666 | { | |
3667 | wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()")); | |
3668 | ||
3669 | return NULL; | |
3670 | } | |
3671 | ||
f0f951fa | 3672 | return input; |
cd0b1709 VZ |
3673 | } |
3674 | ||
3675 | const wxChar *wxDateTime::ParseDateTime(const wxChar *date) | |
3676 | { | |
3677 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
3678 | ||
de07d200 VZ |
3679 | // Set to current day and hour, so strings like '14:00' becomes today at |
3680 | // 14, not some other random date | |
3681 | wxDateTime dtDate = wxDateTime::Today(); | |
3682 | wxDateTime dtTime = wxDateTime::Today(); | |
cd0b1709 | 3683 | |
de07d200 VZ |
3684 | const wxChar* pchTime; |
3685 | ||
3686 | // Try to parse the beginning of the string as a date | |
3687 | const wxChar* pchDate = dtDate.ParseDate(date); | |
3688 | ||
3689 | // We got a date in the beginning, see if there is a time specified after the date | |
3690 | if ( pchDate ) | |
3691 | { | |
3692 | // Skip spaces, as the ParseTime() function fails on spaces | |
3693 | while ( wxIsspace(*pchDate) ) | |
3694 | pchDate++; | |
3695 | ||
3696 | pchTime = dtTime.ParseTime(pchDate); | |
3697 | } | |
3698 | else // no date in the beginning | |
3699 | { | |
3700 | // check and see if we have a time followed by a date | |
3701 | pchTime = dtTime.ParseTime(date); | |
3702 | if ( pchTime ) | |
3703 | { | |
3704 | while ( wxIsspace(*pchTime) ) | |
3705 | pchTime++; | |
3706 | ||
3707 | pchDate = dtDate.ParseDate(pchTime); | |
3708 | } | |
3709 | } | |
3710 | ||
3711 | // If we have a date specified, set our own data to the same date | |
3712 | if ( !pchDate || !pchTime ) | |
3713 | return NULL; | |
3714 | ||
3715 | Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(), | |
3716 | dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(), | |
3717 | dtTime.GetMillisecond()); | |
3718 | ||
3719 | // Return endpoint of scan | |
3720 | return pchDate > pchTime ? pchDate : pchTime; | |
cd0b1709 VZ |
3721 | } |
3722 | ||
3723 | const wxChar *wxDateTime::ParseDate(const wxChar *date) | |
3724 | { | |
3725 | // this is a simplified version of ParseDateTime() which understands only | |
3726 | // "today" (for wxDate compatibility) and digits only otherwise (and not | |
3727 | // all esoteric constructions ParseDateTime() knows about) | |
3728 | ||
3729 | wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
3730 | ||
3731 | const wxChar *p = date; | |
3732 | while ( wxIsspace(*p) ) | |
3733 | p++; | |
3734 | ||
fd9f9f4c VZ |
3735 | // some special cases |
3736 | static struct | |
cd0b1709 | 3737 | { |
fd9f9f4c VZ |
3738 | const wxChar *str; |
3739 | int dayDiffFromToday; | |
3740 | } literalDates[] = | |
3741 | { | |
3742 | { wxTRANSLATE("today"), 0 }, | |
3743 | { wxTRANSLATE("yesterday"), -1 }, | |
3744 | { wxTRANSLATE("tomorrow"), 1 }, | |
3745 | }; | |
3746 | ||
3747 | for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ ) | |
3748 | { | |
7a7bd38a VZ |
3749 | const wxString dateStr = wxGetTranslation(literalDates[n].str); |
3750 | size_t len = dateStr.length(); | |
907173e5 | 3751 | if ( wxStrlen(p) >= len ) |
fd9f9f4c | 3752 | { |
907173e5 | 3753 | wxString str(p, len); |
7a7bd38a | 3754 | if ( str.CmpNoCase(dateStr) == 0 ) |
fd9f9f4c | 3755 | { |
907173e5 WS |
3756 | // nothing can follow this, so stop here |
3757 | p += len; | |
3758 | ||
3759 | int dayDiffFromToday = literalDates[n].dayDiffFromToday; | |
3760 | *this = Today(); | |
3761 | if ( dayDiffFromToday ) | |
3762 | { | |
3763 | *this += wxDateSpan::Days(dayDiffFromToday); | |
3764 | } | |
cd0b1709 | 3765 | |
907173e5 WS |
3766 | return p; |
3767 | } | |
fd9f9f4c | 3768 | } |
cd0b1709 VZ |
3769 | } |
3770 | ||
3ca6a5f0 BP |
3771 | // We try to guess what we have here: for each new (numeric) token, we |
3772 | // determine if it can be a month, day or a year. Of course, there is an | |
3773 | // ambiguity as some numbers may be days as well as months, so we also | |
3774 | // have the ability to back track. | |
3775 | ||
cd0b1709 | 3776 | // what do we have? |
68379eaf WS |
3777 | bool haveDay = false, // the months day? |
3778 | haveWDay = false, // the day of week? | |
3779 | haveMon = false, // the month? | |
3780 | haveYear = false; // the year? | |
cd0b1709 VZ |
3781 | |
3782 | // and the value of the items we have (init them to get rid of warnings) | |
3783 | WeekDay wday = Inv_WeekDay; | |
3784 | wxDateTime_t day = 0; | |
3785 | wxDateTime::Month mon = Inv_Month; | |
3786 | int year = 0; | |
3787 | ||
3788 | // tokenize the string | |
f6bcfd97 | 3789 | size_t nPosCur = 0; |
62ae2780 | 3790 | static const wxChar *dateDelimiters = _T(".,/-\t\r\n "); |
f6bcfd97 | 3791 | wxStringTokenizer tok(p, dateDelimiters); |
cd0b1709 VZ |
3792 | while ( tok.HasMoreTokens() ) |
3793 | { | |
3794 | wxString token = tok.GetNextToken(); | |
3ca6a5f0 BP |
3795 | if ( !token ) |
3796 | continue; | |
cd0b1709 VZ |
3797 | |
3798 | // is it a number? | |
3799 | unsigned long val; | |
fde5a86b | 3800 | if ( token.ToULong(&val) ) |
cd0b1709 VZ |
3801 | { |
3802 | // guess what this number is | |
3803 | ||
68379eaf WS |
3804 | bool isDay = false, |
3805 | isMonth = false, | |
3806 | isYear = false; | |
3ca6a5f0 BP |
3807 | |
3808 | if ( !haveMon && val > 0 && val <= 12 ) | |
cd0b1709 | 3809 | { |
3ca6a5f0 | 3810 | // assume it is month |
68379eaf | 3811 | isMonth = true; |
3ca6a5f0 BP |
3812 | } |
3813 | else // not the month | |
3814 | { | |
560e2916 | 3815 | if ( haveDay ) |
cd0b1709 | 3816 | { |
560e2916 | 3817 | // this can only be the year |
68379eaf | 3818 | isYear = true; |
cd0b1709 | 3819 | } |
560e2916 | 3820 | else // may be either day or year |
cd0b1709 | 3821 | { |
eca0692c VZ |
3822 | // use a leap year if we don't have the year yet to allow |
3823 | // dates like 2/29/1976 which would be rejected otherwise | |
6a27c749 | 3824 | wxDateTime_t max_days = (wxDateTime_t)( |
42841dfc | 3825 | haveMon |
eca0692c | 3826 | ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon) |
42841dfc WS |
3827 | : 31 |
3828 | ); | |
560e2916 VZ |
3829 | |
3830 | // can it be day? | |
6a27c749 | 3831 | if ( (val == 0) || (val > (unsigned long)max_days) ) |
560e2916 VZ |
3832 | { |
3833 | // no | |
68379eaf | 3834 | isYear = true; |
560e2916 VZ |
3835 | } |
3836 | else // yes, suppose it's the day | |
3837 | { | |
68379eaf | 3838 | isDay = true; |
560e2916 | 3839 | } |
cd0b1709 VZ |
3840 | } |
3841 | } | |
3842 | ||
cd0b1709 VZ |
3843 | if ( isYear ) |
3844 | { | |
3845 | if ( haveYear ) | |
cd0b1709 | 3846 | break; |
cd0b1709 | 3847 | |
68379eaf | 3848 | haveYear = true; |
cd0b1709 | 3849 | |
479cd5de | 3850 | year = (wxDateTime_t)val; |
cd0b1709 | 3851 | } |
3ca6a5f0 | 3852 | else if ( isDay ) |
cd0b1709 | 3853 | { |
3ca6a5f0 | 3854 | if ( haveDay ) |
cd0b1709 | 3855 | break; |
cd0b1709 | 3856 | |
68379eaf | 3857 | haveDay = true; |
cd0b1709 | 3858 | |
3ca6a5f0 | 3859 | day = (wxDateTime_t)val; |
cd0b1709 | 3860 | } |
3ca6a5f0 | 3861 | else if ( isMonth ) |
cd0b1709 | 3862 | { |
68379eaf | 3863 | haveMon = true; |
cd0b1709 | 3864 | |
3ca6a5f0 | 3865 | mon = (Month)(val - 1); |
cd0b1709 VZ |
3866 | } |
3867 | } | |
3868 | else // not a number | |
3869 | { | |
f6bcfd97 BP |
3870 | // be careful not to overwrite the current mon value |
3871 | Month mon2 = GetMonthFromName(token, Name_Full | Name_Abbr); | |
3872 | if ( mon2 != Inv_Month ) | |
cd0b1709 VZ |
3873 | { |
3874 | // it's a month | |
3875 | if ( haveMon ) | |
3876 | { | |
6411a32c VZ |
3877 | // but we already have a month - maybe we guessed wrong? |
3878 | if ( !haveDay ) | |
3879 | { | |
f5cd9787 | 3880 | // no need to check in month range as always < 12, but |
6411a32c | 3881 | // the days are counted from 1 unlike the months |
42841dfc | 3882 | day = (wxDateTime_t)(mon + 1); |
68379eaf | 3883 | haveDay = true; |
6411a32c VZ |
3884 | } |
3885 | else | |
3886 | { | |
3887 | // could possible be the year (doesn't the year come | |
3888 | // before the month in the japanese format?) (FIXME) | |
3889 | break; | |
f5cd9787 | 3890 | } |
cd0b1709 VZ |
3891 | } |
3892 | ||
f6bcfd97 BP |
3893 | mon = mon2; |
3894 | ||
68379eaf | 3895 | haveMon = true; |
cd0b1709 | 3896 | } |
6411a32c | 3897 | else // not a valid month name |
cd0b1709 | 3898 | { |
f0f951fa | 3899 | wday = GetWeekDayFromName(token, Name_Full | Name_Abbr); |
cd0b1709 VZ |
3900 | if ( wday != Inv_WeekDay ) |
3901 | { | |
3902 | // a week day | |
3903 | if ( haveWDay ) | |
3904 | { | |
3905 | break; | |
3906 | } | |
3907 | ||
68379eaf | 3908 | haveWDay = true; |
cd0b1709 | 3909 | } |
6411a32c | 3910 | else // not a valid weekday name |
cd0b1709 VZ |
3911 | { |
3912 | // try the ordinals | |
3913 | static const wxChar *ordinals[] = | |
3914 | { | |
3915 | wxTRANSLATE("first"), | |
3916 | wxTRANSLATE("second"), | |
3917 | wxTRANSLATE("third"), | |
3918 | wxTRANSLATE("fourth"), | |
3919 | wxTRANSLATE("fifth"), | |
3920 | wxTRANSLATE("sixth"), | |
3921 | wxTRANSLATE("seventh"), | |
3922 | wxTRANSLATE("eighth"), | |
3923 | wxTRANSLATE("ninth"), | |
3924 | wxTRANSLATE("tenth"), | |
3925 | wxTRANSLATE("eleventh"), | |
3926 | wxTRANSLATE("twelfth"), | |
3927 | wxTRANSLATE("thirteenth"), | |
3928 | wxTRANSLATE("fourteenth"), | |
3929 | wxTRANSLATE("fifteenth"), | |
3930 | wxTRANSLATE("sixteenth"), | |
3931 | wxTRANSLATE("seventeenth"), | |
3932 | wxTRANSLATE("eighteenth"), | |
3933 | wxTRANSLATE("nineteenth"), | |
3934 | wxTRANSLATE("twentieth"), | |
3935 | // that's enough - otherwise we'd have problems with | |
6411a32c | 3936 | // composite (or not) ordinals |
cd0b1709 VZ |
3937 | }; |
3938 | ||
3939 | size_t n; | |
3940 | for ( n = 0; n < WXSIZEOF(ordinals); n++ ) | |
3941 | { | |
3942 | if ( token.CmpNoCase(ordinals[n]) == 0 ) | |
3943 | { | |
3944 | break; | |
3945 | } | |
3946 | } | |
3947 | ||
3948 | if ( n == WXSIZEOF(ordinals) ) | |
3949 | { | |
3950 | // stop here - something unknown | |
3951 | break; | |
3952 | } | |
3953 | ||
3954 | // it's a day | |
3955 | if ( haveDay ) | |
3956 | { | |
3957 | // don't try anything here (as in case of numeric day | |
3958 | // above) - the symbolic day spec should always | |
3959 | // precede the month/year | |
3960 | break; | |
3961 | } | |
3962 | ||
68379eaf | 3963 | haveDay = true; |
cd0b1709 | 3964 | |
33ac7e6f | 3965 | day = (wxDateTime_t)(n + 1); |
cd0b1709 VZ |
3966 | } |
3967 | } | |
3968 | } | |
f6bcfd97 BP |
3969 | |
3970 | nPosCur = tok.GetPosition(); | |
cd0b1709 VZ |
3971 | } |
3972 | ||
3973 | // either no more tokens or the scan was stopped by something we couldn't | |
3974 | // parse - in any case, see if we can construct a date from what we have | |
3975 | if ( !haveDay && !haveWDay ) | |
3976 | { | |
f6bcfd97 | 3977 | wxLogDebug(_T("ParseDate: no day, no weekday hence no date.")); |
cd0b1709 | 3978 | |
eca0692c | 3979 | return NULL; |
cd0b1709 VZ |
3980 | } |
3981 | ||
3982 | if ( haveWDay && (haveMon || haveYear || haveDay) && | |
f6bcfd97 | 3983 | !(haveDay && haveMon && haveYear) ) |
cd0b1709 VZ |
3984 | { |
3985 | // without adjectives (which we don't support here) the week day only | |
3986 | // makes sense completely separately or with the full date | |
3987 | // specification (what would "Wed 1999" mean?) | |
eca0692c | 3988 | return NULL; |
cd0b1709 VZ |
3989 | } |
3990 | ||
f6bcfd97 BP |
3991 | if ( !haveWDay && haveYear && !(haveDay && haveMon) ) |
3992 | { | |
3993 | // may be we have month and day instead of day and year? | |
3994 | if ( haveDay && !haveMon ) | |
3995 | { | |
3996 | if ( day <= 12 ) | |
3997 | { | |
3998 | // exchange day and month | |
3999 | mon = (wxDateTime::Month)(day - 1); | |
4000 | ||
4001 | // we're in the current year then | |
196be0f1 | 4002 | if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) ) |
f6bcfd97 | 4003 | { |
42841dfc | 4004 | day = (wxDateTime_t)year; |
f6bcfd97 | 4005 | |
68379eaf WS |
4006 | haveMon = true; |
4007 | haveYear = false; | |
f6bcfd97 | 4008 | } |
68379eaf | 4009 | //else: no, can't exchange, leave haveMon == false |
f6bcfd97 BP |
4010 | } |
4011 | } | |
4012 | ||
4013 | if ( !haveMon ) | |
4014 | { | |
4015 | // if we give the year, month and day must be given too | |
4016 | wxLogDebug(_T("ParseDate: day and month should be specified if year is.")); | |
4017 | ||
eca0692c | 4018 | return NULL; |
f6bcfd97 BP |
4019 | } |
4020 | } | |
4021 | ||
cd0b1709 VZ |
4022 | if ( !haveMon ) |
4023 | { | |
4024 | mon = GetCurrentMonth(); | |
4025 | } | |
4026 | ||
4027 | if ( !haveYear ) | |
4028 | { | |
4029 | year = GetCurrentYear(); | |
4030 | } | |
4031 | ||
4032 | if ( haveDay ) | |
4033 | { | |
eca0692c VZ |
4034 | // normally we check the day above but the check is optimistic in case |
4035 | // we find the day before its month/year so we have to redo it now | |
4036 | if ( day > GetNumOfDaysInMonth(year, mon) ) | |
4037 | return NULL; | |
4038 | ||
cd0b1709 VZ |
4039 | Set(day, mon, year); |
4040 | ||
4041 | if ( haveWDay ) | |
4042 | { | |
4043 | // check that it is really the same | |
4044 | if ( GetWeekDay() != wday ) | |
4045 | { | |
4046 | // inconsistency detected | |
f6bcfd97 BP |
4047 | wxLogDebug(_T("ParseDate: inconsistent day/weekday.")); |
4048 | ||
cd0b1709 VZ |
4049 | return (wxChar *)NULL; |
4050 | } | |
4051 | } | |
4052 | } | |
4053 | else // haveWDay | |
4054 | { | |
4055 | *this = Today(); | |
4056 | ||
4057 | SetToWeekDayInSameWeek(wday); | |
4058 | } | |
4059 | ||
f6bcfd97 BP |
4060 | // return the pointer to the first unparsed char |
4061 | p += nPosCur; | |
4062 | if ( nPosCur && wxStrchr(dateDelimiters, *(p - 1)) ) | |
4063 | { | |
4064 | // if we couldn't parse the token after the delimiter, put back the | |
4065 | // delimiter as well | |
4066 | p--; | |
4067 | } | |
4068 | ||
4069 | return p; | |
cd0b1709 VZ |
4070 | } |
4071 | ||
4072 | const wxChar *wxDateTime::ParseTime(const wxChar *time) | |
4073 | { | |
4074 | wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); | |
4075 | ||
f0f951fa VZ |
4076 | // first try some extra things |
4077 | static const struct | |
4078 | { | |
4079 | const wxChar *name; | |
4080 | wxDateTime_t hour; | |
4081 | } stdTimes[] = | |
4082 | { | |
4083 | { wxTRANSLATE("noon"), 12 }, | |
4084 | { wxTRANSLATE("midnight"), 00 }, | |
4085 | // anything else? | |
4086 | }; | |
cd0b1709 | 4087 | |
f0f951fa VZ |
4088 | for ( size_t n = 0; n < WXSIZEOF(stdTimes); n++ ) |
4089 | { | |
4090 | wxString timeString = wxGetTranslation(stdTimes[n].name); | |
4091 | size_t len = timeString.length(); | |
4092 | if ( timeString.CmpNoCase(wxString(time, len)) == 0 ) | |
4093 | { | |
4ded51f2 CE |
4094 | // casts required by DigitalMars |
4095 | Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0)); | |
f0f951fa VZ |
4096 | |
4097 | return time + len; | |
4098 | } | |
4099 | } | |
4100 | ||
c7f9a482 VZ |
4101 | // try all time formats we may think about in the order from longest to |
4102 | // shortest | |
4103 | ||
4104 | // 12hour with AM/PM? | |
4105 | const wxChar *result = ParseFormat(time, _T("%I:%M:%S %p")); | |
4106 | ||
f0f951fa VZ |
4107 | if ( !result ) |
4108 | { | |
4109 | // normally, it's the same, but why not try it? | |
4110 | result = ParseFormat(time, _T("%H:%M:%S")); | |
4111 | } | |
4112 | ||
4113 | if ( !result ) | |
4114 | { | |
c7f9a482 VZ |
4115 | // 12hour with AM/PM but without seconds? |
4116 | result = ParseFormat(time, _T("%I:%M %p")); | |
f0f951fa VZ |
4117 | } |
4118 | ||
4119 | if ( !result ) | |
4120 | { | |
4121 | // without seconds? | |
4122 | result = ParseFormat(time, _T("%H:%M")); | |
4123 | } | |
4124 | ||
4125 | if ( !result ) | |
4126 | { | |
c7f9a482 VZ |
4127 | // just the hour and AM/PM? |
4128 | result = ParseFormat(time, _T("%I %p")); | |
f0f951fa VZ |
4129 | } |
4130 | ||
4131 | if ( !result ) | |
4132 | { | |
4133 | // just the hour? | |
4134 | result = ParseFormat(time, _T("%H")); | |
4135 | } | |
4136 | ||
4137 | if ( !result ) | |
4138 | { | |
c7f9a482 VZ |
4139 | // parse the standard format: normally it is one of the formats above |
4140 | // but it may be set to something completely different by the user | |
4141 | result = ParseFormat(time, _T("%X")); | |
f0f951fa VZ |
4142 | } |
4143 | ||
4144 | // TODO: parse timezones | |
4145 | ||
4146 | return result; | |
cd0b1709 VZ |
4147 | } |
4148 | ||
4f6aed9c VZ |
4149 | // ---------------------------------------------------------------------------- |
4150 | // Workdays and holidays support | |
4151 | // ---------------------------------------------------------------------------- | |
4152 | ||
4153 | bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const | |
4154 | { | |
4155 | return !wxDateTimeHolidayAuthority::IsHoliday(*this); | |
4156 | } | |
4157 | ||
26364344 WS |
4158 | // ============================================================================ |
4159 | // wxDateSpan | |
4160 | // ============================================================================ | |
4161 | ||
4162 | wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds) | |
4163 | { | |
4164 | wxDateSpan ds1(ds); | |
4165 | return ds1.Multiply(n); | |
4166 | } | |
4167 | ||
fcc3d7cb VZ |
4168 | // ============================================================================ |
4169 | // wxTimeSpan | |
4170 | // ============================================================================ | |
4171 | ||
26364344 WS |
4172 | wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts) |
4173 | { | |
4174 | return wxTimeSpan(ts).Multiply(n); | |
4175 | } | |
4176 | ||
033400eb VZ |
4177 | // this enum is only used in wxTimeSpan::Format() below but we can't declare |
4178 | // it locally to the method as it provokes an internal compiler error in egcs | |
4179 | // 2.91.60 when building with -O2 | |
4180 | enum TimeSpanPart | |
4181 | { | |
4182 | Part_Week, | |
4183 | Part_Day, | |
4184 | Part_Hour, | |
4185 | Part_Min, | |
4186 | Part_Sec, | |
4187 | Part_MSec | |
4188 | }; | |
4189 | ||
e6ec579c VZ |
4190 | // not all strftime(3) format specifiers make sense here because, for example, |
4191 | // a time span doesn't have a year nor a timezone | |
4192 | // | |
4193 | // Here are the ones which are supported (all of them are supported by strftime | |
4194 | // as well): | |
4195 | // %H hour in 24 hour format | |
4196 | // %M minute (00 - 59) | |
4197 | // %S second (00 - 59) | |
4198 | // %% percent sign | |
4199 | // | |
4200 | // Also, for MFC CTimeSpan compatibility, we support | |
4201 | // %D number of days | |
4202 | // | |
4203 | // And, to be better than MFC :-), we also have | |
4204 | // %E number of wEeks | |
4205 | // %l milliseconds (000 - 999) | |
fcc3d7cb VZ |
4206 | wxString wxTimeSpan::Format(const wxChar *format) const |
4207 | { | |
525d8583 | 4208 | wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") ); |
fcc3d7cb VZ |
4209 | |
4210 | wxString str; | |
5b735202 | 4211 | str.Alloc(wxStrlen(format)); |
e6ec579c | 4212 | |
df05cdc5 VZ |
4213 | // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */) |
4214 | // | |
4215 | // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the | |
4216 | // question is what should ts.Format("%S") do? The code here returns "3273" | |
4217 | // in this case (i.e. the total number of seconds, not just seconds % 60) | |
4218 | // because, for me, this call means "give me entire time interval in | |
4219 | // seconds" and not "give me the seconds part of the time interval" | |
4220 | // | |
4221 | // If we agree that it should behave like this, it is clear that the | |
4222 | // interpretation of each format specifier depends on the presence of the | |
4223 | // other format specs in the string: if there was "%H" before "%M", we | |
4224 | // should use GetMinutes() % 60, otherwise just GetMinutes() &c | |
4225 | ||
4226 | // we remember the most important unit found so far | |
033400eb | 4227 | TimeSpanPart partBiggest = Part_MSec; |
df05cdc5 | 4228 | |
f6bcfd97 | 4229 | for ( const wxChar *pch = format; *pch; pch++ ) |
e6ec579c VZ |
4230 | { |
4231 | wxChar ch = *pch; | |
4232 | ||
f6bcfd97 | 4233 | if ( ch == _T('%') ) |
e6ec579c | 4234 | { |
df05cdc5 VZ |
4235 | // the start of the format specification of the printf() below |
4236 | wxString fmtPrefix = _T('%'); | |
4237 | ||
4238 | // the number | |
4239 | long n; | |
e6ec579c | 4240 | |
f6bcfd97 | 4241 | ch = *++pch; // get the format spec char |
e6ec579c VZ |
4242 | switch ( ch ) |
4243 | { | |
4244 | default: | |
4245 | wxFAIL_MSG( _T("invalid format character") ); | |
4246 | // fall through | |
4247 | ||
f6bcfd97 | 4248 | case _T('%'): |
df05cdc5 VZ |
4249 | str += ch; |
4250 | ||
4251 | // skip the part below switch | |
4252 | continue; | |
e6ec579c | 4253 | |
f6bcfd97 | 4254 | case _T('D'): |
df05cdc5 VZ |
4255 | n = GetDays(); |
4256 | if ( partBiggest < Part_Day ) | |
4257 | { | |
4258 | n %= DAYS_PER_WEEK; | |
4259 | } | |
4260 | else | |
4261 | { | |
4262 | partBiggest = Part_Day; | |
4263 | } | |
e6ec579c VZ |
4264 | break; |
4265 | ||
f6bcfd97 | 4266 | case _T('E'): |
df05cdc5 VZ |
4267 | partBiggest = Part_Week; |
4268 | n = GetWeeks(); | |
e6ec579c VZ |
4269 | break; |
4270 | ||
f6bcfd97 | 4271 | case _T('H'): |
df05cdc5 VZ |
4272 | n = GetHours(); |
4273 | if ( partBiggest < Part_Hour ) | |
4274 | { | |
4275 | n %= HOURS_PER_DAY; | |
4276 | } | |
4277 | else | |
4278 | { | |
4279 | partBiggest = Part_Hour; | |
4280 | } | |
4281 | ||
4282 | fmtPrefix += _T("02"); | |
e6ec579c VZ |
4283 | break; |
4284 | ||
f6bcfd97 | 4285 | case _T('l'): |
df05cdc5 VZ |
4286 | n = GetMilliseconds().ToLong(); |
4287 | if ( partBiggest < Part_MSec ) | |
4288 | { | |
4289 | n %= 1000; | |
4290 | } | |
4291 | //else: no need to reset partBiggest to Part_MSec, it is | |
4292 | // the least significant one anyhow | |
4293 | ||
4294 | fmtPrefix += _T("03"); | |
e6ec579c VZ |
4295 | break; |
4296 | ||
f6bcfd97 | 4297 | case _T('M'): |
df05cdc5 VZ |
4298 | n = GetMinutes(); |
4299 | if ( partBiggest < Part_Min ) | |
4300 | { | |
4301 | n %= MIN_PER_HOUR; | |
4302 | } | |
4303 | else | |
4304 | { | |
4305 | partBiggest = Part_Min; | |
4306 | } | |
4307 | ||
4308 | fmtPrefix += _T("02"); | |
e6ec579c VZ |
4309 | break; |
4310 | ||
f6bcfd97 | 4311 | case _T('S'): |
df05cdc5 VZ |
4312 | n = GetSeconds().ToLong(); |
4313 | if ( partBiggest < Part_Sec ) | |
4314 | { | |
4315 | n %= SEC_PER_MIN; | |
4316 | } | |
4317 | else | |
4318 | { | |
4319 | partBiggest = Part_Sec; | |
4320 | } | |
4321 | ||
4322 | fmtPrefix += _T("02"); | |
e6ec579c VZ |
4323 | break; |
4324 | } | |
4325 | ||
df05cdc5 VZ |
4326 | str += wxString::Format(fmtPrefix + _T("ld"), n); |
4327 | } | |
4328 | else | |
4329 | { | |
4330 | // normal character, just copy | |
4331 | str += ch; | |
e6ec579c | 4332 | } |
e6ec579c | 4333 | } |
fcc3d7cb VZ |
4334 | |
4335 | return str; | |
4336 | } | |
4f6aed9c VZ |
4337 | |
4338 | // ============================================================================ | |
4339 | // wxDateTimeHolidayAuthority and related classes | |
4340 | // ============================================================================ | |
4341 | ||
4342 | #include "wx/arrimpl.cpp" | |
4343 | ||
4115960d | 4344 | WX_DEFINE_OBJARRAY(wxDateTimeArray) |
4f6aed9c VZ |
4345 | |
4346 | static int wxCMPFUNC_CONV | |
4347 | wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second) | |
4348 | { | |
4349 | wxDateTime dt1 = **first, | |
4350 | dt2 = **second; | |
4351 | ||
4352 | return dt1 == dt2 ? 0 : dt1 < dt2 ? -1 : +1; | |
4353 | } | |
4354 | ||
4355 | // ---------------------------------------------------------------------------- | |
4356 | // wxDateTimeHolidayAuthority | |
4357 | // ---------------------------------------------------------------------------- | |
4358 | ||
4359 | wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities; | |
4360 | ||
4361 | /* static */ | |
4362 | bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt) | |
4363 | { | |
df5168c4 | 4364 | size_t count = ms_authorities.size(); |
4f6aed9c VZ |
4365 | for ( size_t n = 0; n < count; n++ ) |
4366 | { | |
4367 | if ( ms_authorities[n]->DoIsHoliday(dt) ) | |
4368 | { | |
68379eaf | 4369 | return true; |
4f6aed9c VZ |
4370 | } |
4371 | } | |
4372 | ||
68379eaf | 4373 | return false; |
4f6aed9c VZ |
4374 | } |
4375 | ||
4376 | /* static */ | |
4377 | size_t | |
4378 | wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart, | |
4379 | const wxDateTime& dtEnd, | |
4380 | wxDateTimeArray& holidays) | |
4381 | { | |
4382 | wxDateTimeArray hol; | |
4383 | ||
df5168c4 | 4384 | holidays.Clear(); |
4f6aed9c | 4385 | |
7a7bd38a VZ |
4386 | const size_t countAuth = ms_authorities.size(); |
4387 | for ( size_t nAuth = 0; nAuth < countAuth; nAuth++ ) | |
4f6aed9c | 4388 | { |
6dc6fda6 | 4389 | ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol); |
4f6aed9c VZ |
4390 | |
4391 | WX_APPEND_ARRAY(holidays, hol); | |
4392 | } | |
4393 | ||
4394 | holidays.Sort(wxDateTimeCompareFunc); | |
4395 | ||
df5168c4 | 4396 | return holidays.size(); |
4f6aed9c VZ |
4397 | } |
4398 | ||
4399 | /* static */ | |
4400 | void wxDateTimeHolidayAuthority::ClearAllAuthorities() | |
4401 | { | |
4402 | WX_CLEAR_ARRAY(ms_authorities); | |
4403 | } | |
4404 | ||
4405 | /* static */ | |
4406 | void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth) | |
4407 | { | |
df5168c4 | 4408 | ms_authorities.push_back(auth); |
4f6aed9c VZ |
4409 | } |
4410 | ||
5e233068 WS |
4411 | wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority() |
4412 | { | |
4413 | // required here for Darwin | |
4414 | } | |
4415 | ||
4f6aed9c VZ |
4416 | // ---------------------------------------------------------------------------- |
4417 | // wxDateTimeWorkDays | |
4418 | // ---------------------------------------------------------------------------- | |
4419 | ||
4420 | bool wxDateTimeWorkDays::DoIsHoliday(const wxDateTime& dt) const | |
4421 | { | |
4422 | wxDateTime::WeekDay wd = dt.GetWeekDay(); | |
4423 | ||
4424 | return (wd == wxDateTime::Sun) || (wd == wxDateTime::Sat); | |
4425 | } | |
4426 | ||
4427 | size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart, | |
4428 | const wxDateTime& dtEnd, | |
4429 | wxDateTimeArray& holidays) const | |
4430 | { | |
4431 | if ( dtStart > dtEnd ) | |
4432 | { | |
4433 | wxFAIL_MSG( _T("invalid date range in GetHolidaysInRange") ); | |
4434 | ||
4435 | return 0u; | |
4436 | } | |
4437 | ||
4438 | holidays.Empty(); | |
4439 | ||
4440 | // instead of checking all days, start with the first Sat after dtStart and | |
4441 | // end with the last Sun before dtEnd | |
4442 | wxDateTime dtSatFirst = dtStart.GetNextWeekDay(wxDateTime::Sat), | |
4443 | dtSatLast = dtEnd.GetPrevWeekDay(wxDateTime::Sat), | |
4444 | dtSunFirst = dtStart.GetNextWeekDay(wxDateTime::Sun), | |
4445 | dtSunLast = dtEnd.GetPrevWeekDay(wxDateTime::Sun), | |
4446 | dt; | |
4447 | ||
4448 | for ( dt = dtSatFirst; dt <= dtSatLast; dt += wxDateSpan::Week() ) | |
4449 | { | |
4450 | holidays.Add(dt); | |
4451 | } | |
4452 | ||
4453 | for ( dt = dtSunFirst; dt <= dtSunLast; dt += wxDateSpan::Week() ) | |
4454 | { | |
4455 | holidays.Add(dt); | |
4456 | } | |
4457 | ||
4458 | return holidays.GetCount(); | |
4459 | } | |
3e0b743f | 4460 | |
26364344 WS |
4461 | // ============================================================================ |
4462 | // other helper functions | |
4463 | // ============================================================================ | |
4464 | ||
4465 | // ---------------------------------------------------------------------------- | |
4466 | // iteration helpers: can be used to write a for loop over enum variable like | |
4467 | // this: | |
4468 | // for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) ) | |
4469 | // ---------------------------------------------------------------------------- | |
4470 | ||
4471 | WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m) | |
4472 | { | |
4473 | wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); | |
4474 | ||
4475 | // no wrapping or the for loop above would never end! | |
4476 | m = (wxDateTime::Month)(m + 1); | |
4477 | } | |
4478 | ||
4479 | WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m) | |
4480 | { | |
4481 | wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); | |
4482 | ||
4483 | m = m == wxDateTime::Jan ? wxDateTime::Inv_Month | |
4484 | : (wxDateTime::Month)(m - 1); | |
4485 | } | |
4486 | ||
4487 | WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd) | |
4488 | { | |
4489 | wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); | |
4490 | ||
4491 | // no wrapping or the for loop above would never end! | |
4492 | wd = (wxDateTime::WeekDay)(wd + 1); | |
4493 | } | |
4494 | ||
4495 | WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd) | |
4496 | { | |
4497 | wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); | |
4498 | ||
4499 | wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay | |
4500 | : (wxDateTime::WeekDay)(wd - 1); | |
4501 | } | |
4502 | ||
1e6feb95 | 4503 | #endif // wxUSE_DATETIME |