/* -*- 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 "DateScaling.hxx" #include #include #include namespace { constexpr OUStringLiteral lcl_aServiceName_DateScaling = u"com.sun.star.chart2.DateScaling"; constexpr OUStringLiteral lcl_aServiceName_InverseDateScaling = u"com.sun.star.chart2.InverseDateScaling"; const double lcl_fNumberOfMonths = 12.0;//todo: this needs to be offered by basic tools Date class if it should be more generic } namespace chart { using namespace ::com::sun::star; using namespace ::com::sun::star::chart2; using ::com::sun::star::chart::TimeUnit::DAY; using ::com::sun::star::chart::TimeUnit::MONTH; using ::com::sun::star::chart::TimeUnit::YEAR; DateScaling::DateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted ) : m_aNullDate( rNullDate ) , m_nTimeUnit( nTimeUnit ) , m_bShifted( bShifted ) { } DateScaling::~DateScaling() { } double SAL_CALL DateScaling::doScaling( double value ) { double fResult(value); if( std::isnan( value ) || std::isinf( value ) ) ::rtl::math::setNan( & fResult ); else { Date aDate(m_aNullDate); aDate.AddDays(::rtl::math::approxFloor(value)); switch( m_nTimeUnit ) { case DAY: fResult = value; if(m_bShifted) fResult+=0.5; break; case YEAR: case MONTH: default: fResult = aDate.GetYear(); fResult *= lcl_fNumberOfMonths;//assuming equal count of months in each year fResult += aDate.GetMonth(); double fDayOfMonth = aDate.GetDay(); fDayOfMonth -= 1.0; double fDaysInMonth = aDate.GetDaysInMonth(); fResult += fDayOfMonth/fDaysInMonth; if(m_bShifted) { if( m_nTimeUnit==YEAR ) fResult += 0.5*lcl_fNumberOfMonths; else fResult += 0.5; } break; } } return fResult; } uno::Reference< XScaling > SAL_CALL DateScaling::getInverseScaling() { return new InverseDateScaling( m_aNullDate, m_nTimeUnit, m_bShifted ); } OUString SAL_CALL DateScaling::getServiceName() { return lcl_aServiceName_DateScaling; } OUString SAL_CALL DateScaling::getImplementationName() { return lcl_aServiceName_DateScaling; } sal_Bool SAL_CALL DateScaling::supportsService( const OUString& rServiceName ) { return cppu::supportsService(this, rServiceName); } css::uno::Sequence< OUString > SAL_CALL DateScaling::getSupportedServiceNames() { return { lcl_aServiceName_DateScaling }; } InverseDateScaling::InverseDateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted ) : m_aNullDate( rNullDate ) , m_nTimeUnit( nTimeUnit ) , m_bShifted( bShifted ) { } InverseDateScaling::~InverseDateScaling() { } double SAL_CALL InverseDateScaling::doScaling( double value ) { double fResult(value); if( std::isnan( value ) || std::isinf( value ) ) ::rtl::math::setNan( & fResult ); else { switch( m_nTimeUnit ) { case DAY: if(m_bShifted) value -= 0.5; fResult = value; break; case YEAR: case MONTH: default: //Date aDate(m_aNullDate); if(m_bShifted) { if( m_nTimeUnit==YEAR ) value -= 0.5*lcl_fNumberOfMonths; else value -= 0.5; } Date aDate( Date::EMPTY ); double fYear = ::rtl::math::approxFloor(value/lcl_fNumberOfMonths); double fMonth = ::rtl::math::approxFloor(value-(fYear*lcl_fNumberOfMonths)); if( fMonth==0.0 ) { fYear--; fMonth=12.0; } aDate.SetYear( static_cast(fYear) ); aDate.SetMonth( static_cast(fMonth) ); aDate.SetDay( 1 ); double fMonthCount = (fYear*lcl_fNumberOfMonths)+fMonth; double fDay = (value-fMonthCount)*aDate.GetDaysInMonth(); fDay += 1.0; aDate.SetDay( static_cast(::rtl::math::round(fDay)) ); fResult = aDate - m_aNullDate; break; } } return fResult; } uno::Reference< XScaling > SAL_CALL InverseDateScaling::getInverseScaling() { return new DateScaling( m_aNullDate, m_nTimeUnit, m_bShifted ); } OUString SAL_CALL InverseDateScaling::getServiceName() { return lcl_aServiceName_InverseDateScaling; } OUString SAL_CALL InverseDateScaling::getImplementationName() { return lcl_aServiceName_InverseDateScaling; } sal_Bool SAL_CALL InverseDateScaling::supportsService( const OUString& rServiceName ) { return cppu::supportsService(this, rServiceName); } css::uno::Sequence< OUString > SAL_CALL InverseDateScaling::getSupportedServiceNames() { return { lcl_aServiceName_InverseDateScaling }; } } //namespace chart /* vim:set shiftwidth=4 softtabstop=4 expandtab: */