| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/datetime.inl |
| 3 | // Purpose: definition of inline functions of wxDateTime and related |
| 4 | // classes declared in datetime.h |
| 5 | // Author: Vadim Zeitlin |
| 6 | // Remarks: having the inline functions here allows us to minimize the |
| 7 | // dependencies (and hence the rebuild time) in debug builds. |
| 8 | // Modified by: |
| 9 | // Created: 30.11.99 |
| 10 | // RCS-ID: $Id$ |
| 11 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 12 | // Licence: wxWindows license |
| 13 | ///////////////////////////////////////////////////////////////////////////// |
| 14 | |
| 15 | #ifndef INCLUDED_FROM_WX_DATETIME_H |
| 16 | #error "This file is only included by wx/datetime.h, don't include it manually!" |
| 17 | #endif |
| 18 | |
| 19 | // ---------------------------------------------------------------------------- |
| 20 | // private macros |
| 21 | // ---------------------------------------------------------------------------- |
| 22 | |
| 23 | #define MILLISECONDS_PER_DAY 86400000l |
| 24 | |
| 25 | // some broken compilers (HP-UX CC) refuse to compile the "normal" version, but |
| 26 | // using a temp variable always might prevent other compilers from optimising |
| 27 | // it away - hence use of this ugly macro |
| 28 | #ifndef __HPUX__ |
| 29 | #define MODIFY_AND_RETURN(op) return wxDateTime(*this).op |
| 30 | #else |
| 31 | #define MODIFY_AND_RETURN(op) wxDateTime dt(*this); dt.op; return dt |
| 32 | #endif |
| 33 | |
| 34 | // ---------------------------------------------------------------------------- |
| 35 | // wxDateTime construction |
| 36 | // ---------------------------------------------------------------------------- |
| 37 | |
| 38 | // only define this once, when included from datetime.cpp |
| 39 | #ifdef wxDEFINE_TIME_CONSTANTS |
| 40 | const long wxDateTime::TIME_T_FACTOR = 1000l; |
| 41 | #endif // wxDEFINE_TIME_CONSTANTS |
| 42 | |
| 43 | bool wxDateTime::IsInStdRange() const |
| 44 | { |
| 45 | return m_time >= 0l && (m_time / TIME_T_FACTOR) < LONG_MAX; |
| 46 | } |
| 47 | |
| 48 | /* static */ |
| 49 | wxDateTime wxDateTime::Now() |
| 50 | { |
| 51 | return wxDateTime(*GetTmNow()); |
| 52 | } |
| 53 | |
| 54 | /* static */ |
| 55 | wxDateTime wxDateTime::Today() |
| 56 | { |
| 57 | struct tm *tm = GetTmNow(); |
| 58 | tm->tm_hour = |
| 59 | tm->tm_min = |
| 60 | tm->tm_sec = 0; |
| 61 | |
| 62 | return wxDateTime(*tm); |
| 63 | } |
| 64 | |
| 65 | #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) |
| 66 | wxDateTime& wxDateTime::Set(time_t timet) |
| 67 | { |
| 68 | // assign first to avoid long multiplication overflow! |
| 69 | m_time = timet; |
| 70 | m_time *= TIME_T_FACTOR; |
| 71 | |
| 72 | return *this; |
| 73 | } |
| 74 | #endif |
| 75 | |
| 76 | wxDateTime& wxDateTime::SetToCurrent() |
| 77 | { |
| 78 | *this = Now(); |
| 79 | return *this; |
| 80 | } |
| 81 | |
| 82 | #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) |
| 83 | wxDateTime::wxDateTime(time_t timet) |
| 84 | { |
| 85 | Set(timet); |
| 86 | } |
| 87 | #endif |
| 88 | |
| 89 | wxDateTime::wxDateTime(const struct tm& tm) |
| 90 | { |
| 91 | Set(tm); |
| 92 | } |
| 93 | |
| 94 | wxDateTime::wxDateTime(const Tm& tm) |
| 95 | { |
| 96 | Set(tm); |
| 97 | } |
| 98 | |
| 99 | wxDateTime::wxDateTime(double jdn) |
| 100 | { |
| 101 | Set(jdn); |
| 102 | } |
| 103 | |
| 104 | wxDateTime& wxDateTime::Set(const Tm& tm) |
| 105 | { |
| 106 | wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") ); |
| 107 | |
| 108 | return Set(tm.mday, (Month)tm.mon, tm.year, tm.hour, tm.min, tm.sec); |
| 109 | } |
| 110 | |
| 111 | wxDateTime::wxDateTime(wxDateTime_t hour, |
| 112 | wxDateTime_t minute, |
| 113 | wxDateTime_t second, |
| 114 | wxDateTime_t millisec) |
| 115 | { |
| 116 | Set(hour, minute, second, millisec); |
| 117 | } |
| 118 | |
| 119 | wxDateTime::wxDateTime(wxDateTime_t day, |
| 120 | Month month, |
| 121 | int year, |
| 122 | wxDateTime_t hour, |
| 123 | wxDateTime_t minute, |
| 124 | wxDateTime_t second, |
| 125 | wxDateTime_t millisec) |
| 126 | { |
| 127 | Set(day, month, year, hour, minute, second, millisec); |
| 128 | } |
| 129 | |
| 130 | // ---------------------------------------------------------------------------- |
| 131 | // wxDateTime accessors |
| 132 | // ---------------------------------------------------------------------------- |
| 133 | |
| 134 | wxLongLong wxDateTime::GetValue() const |
| 135 | { |
| 136 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 137 | |
| 138 | return m_time; |
| 139 | } |
| 140 | |
| 141 | time_t wxDateTime::GetTicks() const |
| 142 | { |
| 143 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 144 | if ( !IsInStdRange() ) |
| 145 | { |
| 146 | return (time_t)-1; |
| 147 | } |
| 148 | |
| 149 | return (time_t)((m_time / (long)TIME_T_FACTOR).GetLo()); |
| 150 | } |
| 151 | |
| 152 | bool wxDateTime::SetToLastWeekDay(WeekDay weekday, |
| 153 | Month month, |
| 154 | int year) |
| 155 | { |
| 156 | return SetToWeekDay(weekday, -1, month, year); |
| 157 | } |
| 158 | |
| 159 | wxDateTime wxDateTime::GetWeekDayInSameWeek(WeekDay weekday) const |
| 160 | { |
| 161 | MODIFY_AND_RETURN( SetToWeekDayInSameWeek(weekday) ); |
| 162 | } |
| 163 | |
| 164 | wxDateTime wxDateTime::GetNextWeekDay(WeekDay weekday) const |
| 165 | { |
| 166 | MODIFY_AND_RETURN( SetToNextWeekDay(weekday) ); |
| 167 | } |
| 168 | |
| 169 | wxDateTime wxDateTime::GetPrevWeekDay(WeekDay weekday) const |
| 170 | { |
| 171 | MODIFY_AND_RETURN( SetToPrevWeekDay(weekday) ); |
| 172 | } |
| 173 | |
| 174 | wxDateTime wxDateTime::GetWeekDay(WeekDay weekday, |
| 175 | int n, |
| 176 | Month month, |
| 177 | int year) const |
| 178 | { |
| 179 | wxDateTime dt(*this); |
| 180 | |
| 181 | return dt.SetToWeekDay(weekday, n, month, year) ? dt : wxInvalidDateTime; |
| 182 | } |
| 183 | |
| 184 | wxDateTime wxDateTime::GetLastWeekDay(WeekDay weekday, |
| 185 | Month month, |
| 186 | int year) |
| 187 | { |
| 188 | wxDateTime dt(*this); |
| 189 | |
| 190 | return dt.SetToLastWeekDay(weekday, month, year) ? dt : wxInvalidDateTime; |
| 191 | } |
| 192 | |
| 193 | wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, WeekDay weekday) const |
| 194 | { |
| 195 | wxDateTime dt(*this); |
| 196 | |
| 197 | return dt.SetToTheWeek(numWeek, weekday) ? dt : wxInvalidDateTime; |
| 198 | } |
| 199 | |
| 200 | wxDateTime wxDateTime::GetLastMonthDay(Month month, int year) const |
| 201 | { |
| 202 | MODIFY_AND_RETURN( SetToLastMonthDay(month, year) ); |
| 203 | } |
| 204 | |
| 205 | wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const |
| 206 | { |
| 207 | MODIFY_AND_RETURN( SetToYearDay(yday) ); |
| 208 | } |
| 209 | |
| 210 | // ---------------------------------------------------------------------------- |
| 211 | // wxDateTime comparison |
| 212 | // ---------------------------------------------------------------------------- |
| 213 | |
| 214 | bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const |
| 215 | { |
| 216 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); |
| 217 | |
| 218 | return m_time == datetime.m_time; |
| 219 | } |
| 220 | |
| 221 | bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const |
| 222 | { |
| 223 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); |
| 224 | |
| 225 | return m_time < datetime.m_time; |
| 226 | } |
| 227 | |
| 228 | bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const |
| 229 | { |
| 230 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); |
| 231 | |
| 232 | return m_time > datetime.m_time; |
| 233 | } |
| 234 | |
| 235 | bool wxDateTime::IsStrictlyBetween(const wxDateTime& t1, |
| 236 | const wxDateTime& t2) const |
| 237 | { |
| 238 | // no need for assert, will be checked by the functions we call |
| 239 | return IsLaterThan(t1) && IsEarlierThan(t2); |
| 240 | } |
| 241 | |
| 242 | bool wxDateTime::IsBetween(const wxDateTime& t1, const wxDateTime& t2) const |
| 243 | { |
| 244 | // no need for assert, will be checked by the functions we call |
| 245 | return IsEqualTo(t1) || IsEqualTo(t2) || IsStrictlyBetween(t1, t2); |
| 246 | } |
| 247 | |
| 248 | bool wxDateTime::IsSameDate(const wxDateTime& dt) const |
| 249 | { |
| 250 | return (m_time - dt.m_time).Abs() < MILLISECONDS_PER_DAY; |
| 251 | } |
| 252 | |
| 253 | bool wxDateTime::IsSameTime(const wxDateTime& dt) const |
| 254 | { |
| 255 | // notice that we can't do something like this: |
| 256 | // |
| 257 | // m_time % MILLISECONDS_PER_DAY == dt.m_time % MILLISECONDS_PER_DAY |
| 258 | // |
| 259 | // because we have also to deal with (possibly) different DST settings! |
| 260 | Tm tm1 = GetTm(), |
| 261 | tm2 = dt.GetTm(); |
| 262 | |
| 263 | return tm1.hour == tm2.hour && |
| 264 | tm1.min == tm2.min && |
| 265 | tm1.sec == tm2.sec && |
| 266 | tm1.msec == tm2.msec; |
| 267 | } |
| 268 | |
| 269 | bool wxDateTime::IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const |
| 270 | { |
| 271 | return IsBetween(dt.Substract(ts), dt.Add(ts)); |
| 272 | } |
| 273 | |
| 274 | // ---------------------------------------------------------------------------- |
| 275 | // wxDateTime arithmetics |
| 276 | // ---------------------------------------------------------------------------- |
| 277 | |
| 278 | wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const |
| 279 | { |
| 280 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 281 | |
| 282 | return wxDateTime(m_time + diff.GetValue()); |
| 283 | } |
| 284 | |
| 285 | wxDateTime& wxDateTime::Add(const wxTimeSpan& diff) |
| 286 | { |
| 287 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 288 | |
| 289 | m_time += diff.GetValue(); |
| 290 | |
| 291 | return *this; |
| 292 | } |
| 293 | |
| 294 | wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff) |
| 295 | { |
| 296 | return Add(diff); |
| 297 | } |
| 298 | |
| 299 | wxDateTime wxDateTime::Substract(const wxTimeSpan& diff) const |
| 300 | { |
| 301 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 302 | |
| 303 | return wxDateTime(m_time - diff.GetValue()); |
| 304 | } |
| 305 | |
| 306 | wxDateTime& wxDateTime::Substract(const wxTimeSpan& diff) |
| 307 | { |
| 308 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); |
| 309 | |
| 310 | m_time -= diff.GetValue(); |
| 311 | |
| 312 | return *this; |
| 313 | } |
| 314 | |
| 315 | wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff) |
| 316 | { |
| 317 | return Substract(diff); |
| 318 | } |
| 319 | |
| 320 | wxTimeSpan wxDateTime::Substract(const wxDateTime& datetime) const |
| 321 | { |
| 322 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); |
| 323 | |
| 324 | return wxTimeSpan(datetime.GetValue() - GetValue()); |
| 325 | } |
| 326 | |
| 327 | wxDateTime wxDateTime::Add(const wxDateSpan& diff) const |
| 328 | { |
| 329 | return wxDateTime(*this).Add(diff); |
| 330 | } |
| 331 | |
| 332 | wxDateTime& wxDateTime::Substract(const wxDateSpan& diff) |
| 333 | { |
| 334 | return Add(diff.Negate()); |
| 335 | } |
| 336 | |
| 337 | wxDateTime wxDateTime::Substract(const wxDateSpan& diff) const |
| 338 | { |
| 339 | return wxDateTime(*this).Substract(diff); |
| 340 | } |
| 341 | |
| 342 | wxDateTime& wxDateTime::operator-=(const wxDateSpan& diff) |
| 343 | { |
| 344 | return Substract(diff); |
| 345 | } |
| 346 | |
| 347 | wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff) |
| 348 | { |
| 349 | return Add(diff); |
| 350 | } |
| 351 | |
| 352 | // ---------------------------------------------------------------------------- |
| 353 | // wxDateTime and timezones |
| 354 | // ---------------------------------------------------------------------------- |
| 355 | |
| 356 | wxDateTime wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz, |
| 357 | bool noDST) const |
| 358 | { |
| 359 | MODIFY_AND_RETURN( MakeTimezone(tz, noDST) ); |
| 360 | } |
| 361 | |
| 362 | // ---------------------------------------------------------------------------- |
| 363 | // wxTimeSpan construction |
| 364 | // ---------------------------------------------------------------------------- |
| 365 | |
| 366 | wxTimeSpan::wxTimeSpan(long hours, long minutes, long seconds, long milliseconds) |
| 367 | { |
| 368 | // assign first to avoid precision loss |
| 369 | m_diff = hours; |
| 370 | m_diff *= 60l; |
| 371 | m_diff += minutes; |
| 372 | m_diff *= 60l; |
| 373 | m_diff += seconds; |
| 374 | m_diff *= 1000l; |
| 375 | m_diff += milliseconds; |
| 376 | } |
| 377 | |
| 378 | // ---------------------------------------------------------------------------- |
| 379 | // wxTimeSpan accessors |
| 380 | // ---------------------------------------------------------------------------- |
| 381 | |
| 382 | wxLongLong wxTimeSpan::GetSeconds() const |
| 383 | { |
| 384 | return m_diff / 1000l; |
| 385 | } |
| 386 | |
| 387 | int wxTimeSpan::GetMinutes() const |
| 388 | { |
| 389 | return (GetSeconds() / 60l).GetLo(); |
| 390 | } |
| 391 | |
| 392 | int wxTimeSpan::GetHours() const |
| 393 | { |
| 394 | return GetMinutes() / 60; |
| 395 | } |
| 396 | |
| 397 | int wxTimeSpan::GetDays() const |
| 398 | { |
| 399 | return GetHours() / 24; |
| 400 | } |
| 401 | |
| 402 | int wxTimeSpan::GetWeeks() const |
| 403 | { |
| 404 | return GetDays() / 7; |
| 405 | } |
| 406 | |
| 407 | // ---------------------------------------------------------------------------- |
| 408 | // wxTimeSpan arithmetics |
| 409 | // ---------------------------------------------------------------------------- |
| 410 | |
| 411 | wxTimeSpan wxTimeSpan::Add(const wxTimeSpan& diff) const |
| 412 | { |
| 413 | return wxTimeSpan(m_diff + diff.GetValue()); |
| 414 | } |
| 415 | |
| 416 | wxTimeSpan& wxTimeSpan::Add(const wxTimeSpan& diff) |
| 417 | { |
| 418 | m_diff += diff.GetValue(); |
| 419 | |
| 420 | return *this; |
| 421 | } |
| 422 | |
| 423 | wxTimeSpan wxTimeSpan::Substract(const wxTimeSpan& diff) const |
| 424 | { |
| 425 | return wxTimeSpan(m_diff - diff.GetValue()); |
| 426 | } |
| 427 | |
| 428 | wxTimeSpan& wxTimeSpan::Substract(const wxTimeSpan& diff) |
| 429 | { |
| 430 | m_diff -= diff.GetValue(); |
| 431 | |
| 432 | return *this; |
| 433 | } |
| 434 | |
| 435 | wxTimeSpan& wxTimeSpan::Multiply(int n) |
| 436 | { |
| 437 | m_diff *= (long)n; |
| 438 | |
| 439 | return *this; |
| 440 | } |
| 441 | |
| 442 | wxTimeSpan wxTimeSpan::Multiply(int n) const |
| 443 | { |
| 444 | return wxTimeSpan(m_diff * (long)n); |
| 445 | } |
| 446 | |
| 447 | wxTimeSpan wxTimeSpan::Abs() const |
| 448 | { |
| 449 | return wxTimeSpan(GetValue().Abs()); |
| 450 | } |
| 451 | |
| 452 | bool wxTimeSpan::IsEqualTo(const wxTimeSpan& ts) const |
| 453 | { |
| 454 | return GetValue() == ts.GetValue(); |
| 455 | } |
| 456 | |
| 457 | bool wxTimeSpan::IsLongerThan(const wxTimeSpan& ts) const |
| 458 | { |
| 459 | return GetValue().Abs() > ts.GetValue().Abs(); |
| 460 | } |
| 461 | |
| 462 | // ---------------------------------------------------------------------------- |
| 463 | // wxDateSpan |
| 464 | // ---------------------------------------------------------------------------- |
| 465 | |
| 466 | wxDateSpan& |
| 467 | wxDateSpan::operator+=(const wxDateSpan& other) |
| 468 | { |
| 469 | m_years += other.m_years; |
| 470 | m_months += other.m_months; |
| 471 | m_weeks += other.m_weeks; |
| 472 | m_days += other.m_days; |
| 473 | |
| 474 | return *this; |
| 475 | } |
| 476 | |
| 477 | wxDateSpan& wxDateSpan::Multiply(int factor) |
| 478 | { |
| 479 | m_years *= factor; |
| 480 | m_months *= factor; |
| 481 | m_weeks *= factor; |
| 482 | m_days *= factor; |
| 483 | |
| 484 | return *this; |
| 485 | } |
| 486 | |
| 487 | wxDateSpan wxDateSpan::Multiply(int factor) const |
| 488 | { |
| 489 | return wxDateSpan(*this).Multiply(factor); |
| 490 | } |
| 491 | |
| 492 | wxDateSpan wxDateSpan::Negate() const |
| 493 | { |
| 494 | return wxDateSpan(-m_years, -m_months, -m_weeks, -m_days); |
| 495 | } |
| 496 | |
| 497 | wxDateSpan& wxDateSpan::Neg() |
| 498 | { |
| 499 | m_years = -m_years; |
| 500 | m_months = -m_months; |
| 501 | m_weeks = -m_weeks; |
| 502 | m_days = -m_days; |
| 503 | |
| 504 | return *this; |
| 505 | } |
| 506 | |
| 507 | #undef MILLISECONDS_PER_DAY |
| 508 | |
| 509 | #undef MODIFY_AND_RETURN |