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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "DateHelper.hxx"
#include "DateScaling.hxx"
#include <rtl/math.hxx>
#include <com/sun/star/chart/TimeUnit.hpp>
//.............................................................................
namespace chart
{
//.............................................................................
using namespace ::com::sun::star;
bool DateHelper::IsInSameYear( const Date& rD1, const Date& rD2 )
{
return rD1.GetYear() == rD2.GetYear();
}
bool DateHelper::IsInSameMonth( const Date& rD1, const Date& rD2 )
{
return (rD1.GetYear() == rD2.GetYear())
&& (rD1.GetMonth() == rD2.GetMonth());
}
Date DateHelper::GetDateSomeMonthsAway( const Date& rD, long nMonthDistance )
{
Date aRet(rD);
long nMonth = rD.GetMonth()+nMonthDistance;
long nNewMonth = nMonth%12;
long nNewYear = rD.GetYear() + nMonth/12;
if( nMonth <= 0 || !nNewMonth )
nNewYear--;
if( nNewMonth <= 0 )
nNewMonth += 12;
aRet.SetMonth( sal_uInt16(nNewMonth) );
aRet.SetYear( sal_uInt16(nNewYear) );
aRet.Normalize();
return aRet;
}
Date DateHelper::GetDateSomeYearsAway( const Date& rD, long nYearDistance )
{
Date aRet(rD);
aRet.SetYear( static_cast<sal_uInt16>(rD.GetYear()+nYearDistance) );
aRet.Normalize();
return aRet;
}
bool DateHelper::IsLessThanOneMonthAway( const Date& rD1, const Date& rD2 )
{
Date aDMin( DateHelper::GetDateSomeMonthsAway( rD1, -1 ) );
Date aDMax( DateHelper::GetDateSomeMonthsAway( rD1, 1 ) );
if( rD2 > aDMin && rD2 < aDMax )
return true;
return false;
}
bool DateHelper::IsLessThanOneYearAway( const Date& rD1, const Date& rD2 )
{
Date aDMin( DateHelper::GetDateSomeYearsAway( rD1, -1 ) );
Date aDMax( DateHelper::GetDateSomeYearsAway( rD1, 1 ) );
if( rD2 > aDMin && rD2 < aDMax )
return true;
return false;
}
double DateHelper::RasterizeDateValue( double fValue, const Date& rNullDate, long TimeResolution )
{
Date aDate(rNullDate); aDate += static_cast<long>(::rtl::math::approxFloor(fValue));
switch(TimeResolution)
{
case ::com::sun::star::chart::TimeUnit::DAY:
break;
case ::com::sun::star::chart::TimeUnit::YEAR:
aDate.SetMonth(1);
aDate.SetDay(1);
break;
case ::com::sun::star::chart::TimeUnit::MONTH:
default:
aDate.SetDay(1);
break;
}
return aDate - rNullDate;
}
//.............................................................................
} //namespace chart
//.............................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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