tools/source/datetime/datetime.cxx

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   9  * $RCSfile: datetime.cxx,v $
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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_tools.hxx"
  33
  34 #include <tools/datetime.hxx>
  35 #include <rtl/math.hxx>
  36
  37 /*************************************************************************
  38 |*
  39 |*    DateTime::IsBetween()
  40 |*
  41 |*    Beschreibung      DATETIME.SDW
  42 |*    Ersterstellung    TH 18.05.92
  43 |*    Letzte Aenderung  TH 18.05.92
  44 |*
  45 *************************************************************************/
  46
  47 BOOL DateTime::IsBetween( const DateTime& rFrom,
  48                           const DateTime& rTo ) const
  49 {
  50     if ( (*this >= rFrom) && (*this <= rTo) )
  51         return TRUE;
  52     else
  53         return FALSE;
  54 }
  55
  56 /*************************************************************************
  57 |*
  58 |*    DateTime::operator >()
  59 |*
  60 |*    Beschreibung      DATETIME.SDW
  61 |*    Ersterstellung    TH 18.05.92
  62 |*    Letzte Aenderung  TH 18.05.92
  63 |*
  64 *************************************************************************/
  65
  66 BOOL DateTime::operator >( const DateTime& rDateTime ) const
  67 {
  68     if ( (Date::operator>( rDateTime )) ||
  69          (Date::operator==( rDateTime ) && Time::operator>( rDateTime )) )
  70         return TRUE;
  71     else
  72         return FALSE;
  73 }
  74
  75 /*************************************************************************
  76 |*
  77 |*    DateTime::operator <()
  78 |*
  79 |*    Beschreibung      DATETIME.SDW
  80 |*    Ersterstellung    TH 18.05.92
  81 |*    Letzte Aenderung  TH 18.05.92
  82 |*
  83 *************************************************************************/
  84
  85 BOOL DateTime::operator <( const DateTime& rDateTime ) const
  86 {
  87     if ( (Date::operator<( rDateTime )) ||
  88          (Date::operator==( rDateTime ) && Time::operator<( rDateTime )) )
  89         return TRUE;
  90     else
  91         return FALSE;
  92 }
  93
  94 /*************************************************************************
  95 |*
  96 |*    DateTime::operator >=()
  97 |*
  98 |*    Beschreibung      DATETIME.SDW
  99 |*    Ersterstellung    TH 18.05.92
 100 |*    Letzte Aenderung  TH 18.05.92
 101 |*
 102 *************************************************************************/
 103
 104 BOOL DateTime::operator >=( const DateTime& rDateTime ) const
 105 {
 106     if ( (Date::operator>( rDateTime )) ||
 107          (Date::operator==( rDateTime ) && Time::operator>=( rDateTime )) )
 108         return TRUE;
 109     else
 110         return FALSE;
 111 }
 112
 113 /*************************************************************************
 114 |*
 115 |*    DateTime::operator <=()
 116 |*
 117 |*    Beschreibung      DATETIME.SDW
 118 |*    Ersterstellung    TH 18.05.92
 119 |*    Letzte Aenderung  TH 18.05.92
 120 |*
 121 *************************************************************************/
 122
 123 BOOL DateTime::operator <=( const DateTime& rDateTime ) const
 124 {
 125     if ( (Date::operator<( rDateTime )) ||
 126          (Date::operator==( rDateTime ) && Time::operator<=( rDateTime )) )
 127         return TRUE;
 128     else
 129         return FALSE;
 130 }
 131
 132 /*************************************************************************
 133 |*
 134 |*    DateTime::GetSecFromDateTime()
 135 |*
 136 |*    Beschreibung      DATETIME.SDW
 137 |*    Ersterstellung    TH 02.10.96
 138 |*    Letzte Aenderung  TH 02.10.96
 139 |*
 140 *************************************************************************/
 141
 142 long DateTime::GetSecFromDateTime( const Date& rDate ) const
 143 {
 144     if ( Date::operator<( rDate ) )
 145         return 0;
 146     else
 147     {
 148         long nSec = Date( *this ) - rDate;
 149         nSec *= 24UL*60*60;
 150         long nHour = GetHour();
 151         long nMin  = GetMin();
 152         nSec += (nHour*3600)+(nMin*60)+GetSec();
 153         return nSec;
 154     }
 155 }
 156
 157 /*************************************************************************
 158 |*
 159 |*    DateTime::GetSecFromDateTime()
 160 |*
 161 |*    Beschreibung      DATETIME.SDW
 162 |*    Ersterstellung    TH 02.10.96
 163 |*    Letzte Aenderung  TH 02.10.96
 164 |*
 165 *************************************************************************/
 166
 167 void DateTime::MakeDateTimeFromSec( const Date& rDate, ULONG nSec )
 168 {
 169     long nDays = nSec / (24UL*60*60);
 170     ((Date*)this)->operator=( rDate );
 171     nSec -= nDays * (24UL*60*60);
 172     USHORT nMin = (USHORT)(nSec / 60);
 173     nSec -= nMin * 60;
 174     ((Time*)this)->operator=( Time( 0, nMin, (USHORT)nSec ) );
 175     operator+=( nDays );
 176 }
 177
 178 /*************************************************************************
 179 |*
 180 |*    DateTime::operator +=()
 181 |*
 182 |*    Beschreibung      DATETIME.SDW
 183 |*    Ersterstellung    TH 02.10.96
 184 |*    Letzte Aenderung  TH 02.10.96
 185 |*
 186 *************************************************************************/
 187
 188 DateTime& DateTime::operator +=( const Time& rTime )
 189 {
 190     Time aTime = *this;
 191     aTime += rTime;
 192     USHORT nHours = aTime.GetHour();
 193     if ( aTime.GetTime() > 0 )
 194     {
 195         while ( nHours >= 24 )
 196         {
 197             Date::operator++();
 198             nHours -= 24;
 199         }
 200         aTime.SetHour( nHours );
 201     }
 202     else if ( aTime.GetTime() != 0 )
 203     {
 204         while ( nHours >= 24 )
 205         {
 206             Date::operator--();
 207             nHours -= 24;
 208         }
 209         Date::operator--();
 210         aTime = Time( 24, 0, 0 )+aTime;
 211     }
 212     Time::operator=( aTime );
 213
 214     return *this;
 215 }
 216
 217 /*************************************************************************
 218 |*
 219 |*    DateTime::operator -=()
 220 |*
 221 |*    Beschreibung      DATETIME.SDW
 222 |*    Ersterstellung    TH 02.10.96
 223 |*    Letzte Aenderung  TH 02.10.96
 224 |*
 225 *************************************************************************/
 226
 227 DateTime& DateTime::operator -=( const Time& rTime )
 228 {
 229     Time aTime = *this;
 230     aTime -= rTime;
 231     USHORT nHours = aTime.GetHour();
 232     if ( aTime.GetTime() > 0 )
 233     {
 234         while ( nHours >= 24 )
 235         {
 236             Date::operator++();
 237             nHours -= 24;
 238         }
 239         aTime.SetHour( nHours );
 240     }
 241     else if ( aTime.GetTime() != 0 )
 242     {
 243         while ( nHours >= 24 )
 244         {
 245             Date::operator--();
 246             nHours -= 24;
 247         }
 248         Date::operator--();
 249         aTime = Time( 24, 0, 0 )+aTime;
 250     }
 251     Time::operator=( aTime );
 252
 253     return *this;
 254 }
 255
 256 /*************************************************************************
 257 |*
 258 |*    DateTime::operator+()
 259 |*
 260 |*    Beschreibung      DATETIME.SDW
 261 |*    Ersterstellung    TH 02.10.96
 262 |*    Letzte Aenderung  TH 02.10.96
 263 |*
 264 *************************************************************************/
 265
 266 DateTime operator +( const DateTime& rDateTime, long nDays )
 267 {
 268     DateTime aDateTime( rDateTime );
 269     aDateTime += nDays;
 270     return aDateTime;
 271 }
 272
 273 /*************************************************************************
 274 |*
 275 |*    DateTime::operator-()
 276 |*
 277 |*    Beschreibung      DATETIME.SDW
 278 |*    Ersterstellung    TH 02.10.96
 279 |*    Letzte Aenderung  TH 02.10.96
 280 |*
 281 *************************************************************************/
 282
 283 DateTime operator -( const DateTime& rDateTime, long nDays )
 284 {
 285     DateTime aDateTime( rDateTime );
 286     aDateTime -= nDays;
 287     return aDateTime;
 288 }
 289
 290 /*************************************************************************
 291 |*
 292 |*    DateTime::operator+()
 293 |*
 294 |*    Beschreibung      DATETIME.SDW
 295 |*    Ersterstellung    TH 02.10.96
 296 |*    Letzte Aenderung  TH 02.10.96
 297 |*
 298 *************************************************************************/
 299
 300 DateTime operator +( const DateTime& rDateTime, const Time& rTime )
 301 {
 302     DateTime aDateTime( rDateTime );
 303     aDateTime += rTime;
 304     return aDateTime;
 305 }
 306
 307 /*************************************************************************
 308 |*
 309 |*    DateTime::operator-()
 310 |*
 311 |*    Beschreibung      DATETIME.SDW
 312 |*    Ersterstellung    TH 02.10.96
 313 |*    Letzte Aenderung  TH 02.10.96
 314 |*
 315 *************************************************************************/
 316
 317 DateTime operator -( const DateTime& rDateTime, const Time& rTime )
 318 {
 319     DateTime aDateTime( rDateTime );
 320     aDateTime -= rTime;
 321     return aDateTime;
 322 }
 323
 324 /*************************************************************************
 325 |*
 326 |*    DateTime::operator +=( double )
 327 |*
 328 *************************************************************************/
 329
 330 DateTime& DateTime::operator +=( double fTimeInDays )
 331 {
 332     double fInt, fFrac;
 333     if ( fTimeInDays < 0.0 )
 334     {
 335         fInt = ::rtl::math::approxCeil( fTimeInDays );
 336         fFrac = fInt <= fTimeInDays ? 0.0 : fTimeInDays - fInt;
 337     }
 338     else
 339     {
 340         fInt = ::rtl::math::approxFloor( fTimeInDays );
 341         fFrac = fInt >= fTimeInDays ? 0.0 : fTimeInDays - fInt;
 342     }
 343     Date::operator+=( long(fInt) );             // full days
 344     if ( fFrac )
 345     {
 346         Time aTime(0);  // default ctor calls system time, we don't need that
 347         fFrac *= 24UL * 60 * 60 * 1000;         // time expressed in milliseconds
 348         aTime.MakeTimeFromMS( long(fFrac) );    // method handles negative ms
 349         operator+=( aTime );
 350     }
 351     return *this;
 352 }
 353
 354 /*************************************************************************
 355 |*
 356 |*    DateTime::operator +( double )
 357 |*
 358 *************************************************************************/
 359
 360 DateTime operator +( const DateTime& rDateTime, double fTimeInDays )
 361 {
 362     DateTime aDateTime( rDateTime );
 363     aDateTime += fTimeInDays;
 364     return aDateTime;
 365 }
 366
 367 /*************************************************************************
 368 |*
 369 |*    DateTime::operator -()
 370 |*
 371 *************************************************************************/
 372
 373 double operator -( const DateTime& rDateTime1, const DateTime& rDateTime2 )
 374 {
 375     long nDays = (const Date&) rDateTime1 - (const Date&) rDateTime2;
 376     long nTime = rDateTime1.GetMSFromTime() - rDateTime2.GetMSFromTime();
 377     if ( nTime )
 378     {
 379         double fTime = double(nTime);
 380         fTime /= 24UL * 60 * 60 * 1000; // convert from milliseconds to fraction
 381         if ( nDays < 0 && fTime > 0.0 )
 382             fTime = 1.0 - fTime;
 383         return double(nDays) + fTime;
 384     }
 385     return double(nDays);
 386 }
 387
 388 void DateTime::GetWin32FileDateTime( sal_uInt32 & rLower, sal_uInt32 & rUpper )
 389 {
 390     const sal_Int64 a100nPerSecond = SAL_CONST_INT64( 10000000 );
 391     const sal_Int64 a100nPerDay = a100nPerSecond * sal_Int64( 60 * 60 * 24 );
 392
 393     sal_Int64 nYears = GetYear() - 1601;
 394     sal_Int64 nDays =
 395         nYears * 365 +
 396         nYears / 4 - nYears / 100 + nYears / 400 +
 397         GetDayOfYear() - 1;
 398
 399     sal_Int64 aTime =
 400         a100nPerDay * nDays +
 401         a100nPerSecond * (
 402                 sal_Int64( GetSec() ) +
 403                 60 * sal_Int64( GetMin() ) +
 404                 60 * 60 * sal_Int64( GetHour() ) );
 405
 406     rLower = sal_uInt32( aTime % SAL_CONST_UINT64( 0x100000000 ) );
 407     rUpper = sal_uInt32( aTime / SAL_CONST_UINT64( 0x100000000 ) );
 408 }
 409
 410 DateTime DateTime::CreateFromWin32FileDateTime( const sal_uInt32 & rLower, const sal_uInt32 & rUpper )
 411 {
 412     const sal_Int64 a100nPerSecond = SAL_CONST_INT64( 10000000 );
 413     const sal_Int64 a100nPerDay = a100nPerSecond * sal_Int64( 60 * 60 * 24 );
 414
 415     sal_Int64 aTime = sal_Int64(
 416             sal_uInt64( rUpper ) * SAL_CONST_UINT64( 0x100000000 ) +
 417             sal_uInt64( rLower ) );
 418
 419     sal_Int64 nDays = aTime / a100nPerDay;
 420     sal_Int64 nYears =
 421         ( nDays -
 422           ( nDays / ( 4 * 365 ) ) +
 423           ( nDays / ( 100 * 365 ) ) -
 424           ( nDays / ( 400 * 365 ) ) ) / 365;
 425     nDays -= nYears * 365 + nYears / 4 - nYears / 100 + nYears / 400;
 426
 427     USHORT nMonths = 0;
 428     for( sal_Int64 nDaysCount = nDays; nDaysCount >= 0; )
 429     {
 430         nDays = nDaysCount;
 431         nMonths ++;
 432         nDaysCount -= Date(
 433             1, nMonths, sal::static_int_cast< USHORT >(1601 + nYears) ).
 434             GetDaysInMonth();
 435     }
 436
 437     Date _aDate(
 438         (USHORT)( nDays + 1 ), nMonths,
 439         sal::static_int_cast< USHORT >(nYears + 1601) );
 440     Time _aTime( ULONG( ( aTime / ( a100nPerSecond * 60 * 60 ) ) % sal_Int64( 24 ) ),
 441             ULONG( ( aTime / ( a100nPerSecond * 60 ) ) % sal_Int64( 60 ) ),
 442             ULONG( ( aTime / ( a100nPerSecond ) ) % sal_Int64( 60 ) ) );
 443
 444     return DateTime( _aDate, _aTime );
 445 }