/*************************************************************************
*
* $RCSfile: datetime.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: vg $ $Date: 2003-10-06 16:04:16 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#include <datetime.hxx>
#include <rtl/math.hxx>
/*************************************************************************
|*
|* DateTime::IsBetween()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 18.05.92
|* Letzte Aenderung TH 18.05.92
|*
*************************************************************************/
BOOL DateTime::IsBetween( const DateTime& rFrom,
const DateTime& rTo ) const
{
if ( (*this >= rFrom) && (*this <= rTo) )
return TRUE;
else
return FALSE;
}
/*************************************************************************
|*
|* DateTime::operator >()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 18.05.92
|* Letzte Aenderung TH 18.05.92
|*
*************************************************************************/
BOOL DateTime::operator >( const DateTime& rDateTime ) const
{
if ( (Date::operator>( rDateTime )) ||
(Date::operator==( rDateTime ) && Time::operator>( rDateTime )) )
return TRUE;
else
return FALSE;
}
/*************************************************************************
|*
|* DateTime::operator <()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 18.05.92
|* Letzte Aenderung TH 18.05.92
|*
*************************************************************************/
BOOL DateTime::operator <( const DateTime& rDateTime ) const
{
if ( (Date::operator<( rDateTime )) ||
(Date::operator==( rDateTime ) && Time::operator<( rDateTime )) )
return TRUE;
else
return FALSE;
}
/*************************************************************************
|*
|* DateTime::operator >=()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 18.05.92
|* Letzte Aenderung TH 18.05.92
|*
*************************************************************************/
BOOL DateTime::operator >=( const DateTime& rDateTime ) const
{
if ( (Date::operator>( rDateTime )) ||
(Date::operator==( rDateTime ) && Time::operator>=( rDateTime )) )
return TRUE;
else
return FALSE;
}
/*************************************************************************
|*
|* DateTime::operator <=()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 18.05.92
|* Letzte Aenderung TH 18.05.92
|*
*************************************************************************/
BOOL DateTime::operator <=( const DateTime& rDateTime ) const
{
if ( (Date::operator<( rDateTime )) ||
(Date::operator==( rDateTime ) && Time::operator<=( rDateTime )) )
return TRUE;
else
return FALSE;
}
/*************************************************************************
|*
|* DateTime::GetSecFromDateTime()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
ULONG DateTime::GetSecFromDateTime( const Date& rDate ) const
{
if ( Date::operator<( rDate ) )
return 0;
else
{
ULONG nSec = *this- (DateTime) rDate;
nSec *= 24UL*60*60;
long nHour = GetHour();
long nMin = GetMin();
nSec += (nHour*3600)+(nMin*60)+GetSec();
return nSec;
}
}
/*************************************************************************
|*
|* DateTime::GetSecFromDateTime()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
void DateTime::MakeDateTimeFromSec( const Date& rDate, ULONG nSec )
{
long nDays = nSec / (24UL*60*60);
((Date*)this)->operator=( rDate );
nSec -= nDays * (24UL*60*60);
USHORT nMin = nSec / 60;
nSec -= nMin * 60;
((Time*)this)->operator=( Time( 0, nMin, (USHORT)nSec ) );
operator+=( nDays );
}
/*************************************************************************
|*
|* DateTime::operator +=()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime& DateTime::operator +=( const Time& rTime )
{
Time aTime = *this;
aTime += rTime;
USHORT nHours = aTime.GetHour();
if ( aTime.GetTime() > 0 )
{
while ( nHours >= 24 )
{
Date::operator++();
nHours -= 24;
}
aTime.SetHour( nHours );
}
else if ( aTime.GetTime() != 0 )
{
while ( nHours >= 24 )
{
Date::operator--();
nHours -= 24;
}
Date::operator--();
aTime = Time( 24, 0, 0 )+aTime;
}
Time::operator=( aTime );
return *this;
}
/*************************************************************************
|*
|* DateTime::operator -=()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime& DateTime::operator -=( const Time& rTime )
{
Time aTime = *this;
aTime -= rTime;
USHORT nHours = aTime.GetHour();
if ( aTime.GetTime() > 0 )
{
while ( nHours >= 24 )
{
Date::operator++();
nHours -= 24;
}
aTime.SetHour( nHours );
}
else if ( aTime.GetTime() != 0 )
{
while ( nHours >= 24 )
{
Date::operator--();
nHours -= 24;
}
Date::operator--();
aTime = Time( 24, 0, 0 )+aTime;
}
Time::operator=( aTime );
return *this;
}
/*************************************************************************
|*
|* DateTime::operator+()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime operator +( const DateTime& rDateTime, long nDays )
{
DateTime aDateTime( rDateTime );
aDateTime += nDays;
return aDateTime;
}
/*************************************************************************
|*
|* DateTime::operator-()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime operator -( const DateTime& rDateTime, long nDays )
{
DateTime aDateTime( rDateTime );
aDateTime -= nDays;
return aDateTime;
}
/*************************************************************************
|*
|* DateTime::operator+()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime operator +( const DateTime& rDateTime, const Time& rTime )
{
DateTime aDateTime( rDateTime );
aDateTime += rTime;
return aDateTime;
}
/*************************************************************************
|*
|* DateTime::operator-()
|*
|* Beschreibung DATETIME.SDW
|* Ersterstellung TH 02.10.96
|* Letzte Aenderung TH 02.10.96
|*
*************************************************************************/
DateTime operator -( const DateTime& rDateTime, const Time& rTime )
{
DateTime aDateTime( rDateTime );
aDateTime -= rTime;
return aDateTime;
}
/*************************************************************************
|*
|* DateTime::operator +=( double )
|*
*************************************************************************/
DateTime& DateTime::operator +=( double fTimeInDays )
{
double fInt, fFrac;
if ( fTimeInDays < 0.0 )
{
fInt = ::rtl::math::approxCeil( fTimeInDays );
fFrac = fInt <= fTimeInDays ? 0.0 : fTimeInDays - fInt;
}
else
{
fInt = ::rtl::math::approxFloor( fTimeInDays );
fFrac = fInt >= fTimeInDays ? 0.0 : fTimeInDays - fInt;
}
Date::operator+=( long(fInt) ); // full days
if ( fFrac )
{
Time aTime(0); // default ctor calls system time, we don't need that
fFrac *= 24UL * 60 * 60 * 1000; // time expressed in milliseconds
aTime.MakeTimeFromMS( long(fFrac) ); // method handles negative ms
operator+=( aTime );
}
return *this;
}
/*************************************************************************
|*
|* DateTime::operator +( double )
|*
*************************************************************************/
DateTime operator +( const DateTime& rDateTime, double fTimeInDays )
{
DateTime aDateTime( rDateTime );
aDateTime += fTimeInDays;
return aDateTime;
}
/*************************************************************************
|*
|* DateTime::operator -()
|*
*************************************************************************/
double operator -( const DateTime& rDateTime1, const DateTime& rDateTime2 )
{
long nDays = (const Date&) rDateTime1 - (const Date&) rDateTime2;
long nTime = rDateTime1.GetMSFromTime() - rDateTime2.GetMSFromTime();
if ( nTime )
{
double fTime = double(nTime);
fTime /= 24UL * 60 * 60 * 1000; // convert from milliseconds to fraction
if ( nDays < 0 && fTime > 0.0 )
fTime = 1.0 - fTime;
return double(nDays) + fTime;
}
return double(nDays);
}