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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#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 css::chart::TimeUnit::DAY:
break;
case css::chart::TimeUnit::YEAR:
aDate.SetMonth(1);
aDate.SetDay(1);
break;
case css::chart::TimeUnit::MONTH:
default:
aDate.SetDay(1);
break;
}
return aDate - rNullDate;
}
} //namespace chart
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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