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Diffstat (limited to '')
| -rw-r--r-- | chart2/source/tools/RegressionCurveHelper.cxx | 764 |
1 files changed, 764 insertions, 0 deletions
diff --git a/chart2/source/tools/RegressionCurveHelper.cxx b/chart2/source/tools/RegressionCurveHelper.cxx new file mode 100644 index 000000000..47f6a4b0e --- /dev/null +++ b/chart2/source/tools/RegressionCurveHelper.cxx @@ -0,0 +1,764 @@ +/* -*- 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 <RegressionCurveHelper.hxx> +#include <MeanValueRegressionCurveCalculator.hxx> +#include <LinearRegressionCurveCalculator.hxx> +#include <PolynomialRegressionCurveCalculator.hxx> +#include <MovingAverageRegressionCurveCalculator.hxx> +#include <LogarithmicRegressionCurveCalculator.hxx> +#include <ExponentialRegressionCurveCalculator.hxx> +#include <PotentialRegressionCurveCalculator.hxx> +#include <CommonConverters.hxx> +#include "RegressionCurveModel.hxx" +#include <ChartTypeHelper.hxx> +#include <ChartModelHelper.hxx> +#include <ResId.hxx> +#include <strings.hrc> +#include <DiagramHelper.hxx> +#include <com/sun/star/chart2/AxisType.hpp> +#include <com/sun/star/chart2/XRegressionCurveCalculator.hpp> +#include <com/sun/star/chart2/XRegressionCurveContainer.hpp> +#include <tools/diagnose_ex.h> +#include <comphelper/property.hxx> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::chart2; + +using ::com::sun::star::uno::Reference; +using ::com::sun::star::uno::Sequence; +using ::com::sun::star::lang::XServiceName; +using ::com::sun::star::beans::XPropertySet; +using ::com::sun::star::uno::Exception; + +namespace +{ +OUString lcl_getServiceNameForType(SvxChartRegress eType) +{ + OUString aServiceName; + switch( eType ) + { + case SvxChartRegress::Linear: + aServiceName = "com.sun.star.chart2.LinearRegressionCurve"; + break; + case SvxChartRegress::Log: + aServiceName = "com.sun.star.chart2.LogarithmicRegressionCurve"; + break; + case SvxChartRegress::Exp: + aServiceName = "com.sun.star.chart2.ExponentialRegressionCurve"; + break; + case SvxChartRegress::Power: + aServiceName = "com.sun.star.chart2.PotentialRegressionCurve"; + break; + case SvxChartRegress::Polynomial: + aServiceName = "com.sun.star.chart2.PolynomialRegressionCurve"; + break; + case SvxChartRegress::MovingAverage: + aServiceName = "com.sun.star.chart2.MovingAverageRegressionCurve"; + break; + default: + OSL_FAIL("unknown regression curve type - use linear instead"); + aServiceName = "com.sun.star.chart2.LinearRegressionCurve"; + break; + } + return aServiceName; +} + +} // anonymous namespace + +namespace chart +{ + +Reference< XRegressionCurve > RegressionCurveHelper::createMeanValueLine() +{ + return Reference< XRegressionCurve >( new MeanValueRegressionCurve ); +} + +Reference< XRegressionCurve > RegressionCurveHelper::createRegressionCurveByServiceName( + const OUString& aServiceName ) +{ + Reference< XRegressionCurve > xResult; + + // todo: use factory methods with service name + if( aServiceName == "com.sun.star.chart2.LinearRegressionCurve" ) + { + xResult.set( new LinearRegressionCurve ); + } + else if( aServiceName == "com.sun.star.chart2.LogarithmicRegressionCurve" ) + { + xResult.set( new LogarithmicRegressionCurve ); + } + else if( aServiceName == "com.sun.star.chart2.ExponentialRegressionCurve" ) + { + xResult.set( new ExponentialRegressionCurve ); + } + else if( aServiceName == "com.sun.star.chart2.PotentialRegressionCurve" ) + { + xResult.set( new PotentialRegressionCurve ); + } + else if( aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve" ) + { + xResult.set( new PolynomialRegressionCurve ); + } + else if( aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve" ) + { + xResult.set( new MovingAverageRegressionCurve ); + } + + return xResult; +} + +Reference< XRegressionCurveCalculator > RegressionCurveHelper::createRegressionCurveCalculatorByServiceName( + const OUString& aServiceName ) +{ + Reference< XRegressionCurveCalculator > xResult; + + // todo: use factory methods with service name + if( aServiceName == "com.sun.star.chart2.MeanValueRegressionCurve" ) + { + xResult.set( new MeanValueRegressionCurveCalculator() ); + } + if( aServiceName == "com.sun.star.chart2.LinearRegressionCurve" ) + { + xResult.set( new LinearRegressionCurveCalculator() ); + } + else if( aServiceName == "com.sun.star.chart2.LogarithmicRegressionCurve" ) + { + xResult.set( new LogarithmicRegressionCurveCalculator() ); + } + else if( aServiceName == "com.sun.star.chart2.ExponentialRegressionCurve" ) + { + xResult.set( new ExponentialRegressionCurveCalculator() ); + } + else if( aServiceName == "com.sun.star.chart2.PotentialRegressionCurve" ) + { + xResult.set( new PotentialRegressionCurveCalculator() ); + } + else if( aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve" ) + { + xResult.set( new PolynomialRegressionCurveCalculator() ); + } + else if( aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve" ) + { + xResult.set( new MovingAverageRegressionCurveCalculator() ); + } + + return xResult; +} + +void RegressionCurveHelper::initializeCurveCalculator( + const Reference< XRegressionCurveCalculator > & xOutCurveCalculator, + const Reference< data::XDataSource > & xSource, + bool bUseXValuesIfAvailable /* = true */ ) +{ + if( ! (xOutCurveCalculator.is() && + xSource.is() )) + return; + + Sequence< double > aXValues, aYValues; + bool bXValuesFound = false, bYValuesFound = false; + + Sequence< Reference< data::XLabeledDataSequence > > aDataSeqs( xSource->getDataSequences()); + sal_Int32 i = 0; + for( i=0; + ! (bXValuesFound && bYValuesFound) && i<aDataSeqs.getLength(); + ++i ) + { + try + { + Reference< data::XDataSequence > xSeq( aDataSeqs[i]->getValues()); + Reference< XPropertySet > xProp( xSeq, uno::UNO_QUERY_THROW ); + OUString aRole; + if( xProp->getPropertyValue( "Role" ) >>= aRole ) + { + if( bUseXValuesIfAvailable && !bXValuesFound && aRole == "values-x" ) + { + aXValues = DataSequenceToDoubleSequence( xSeq ); + bXValuesFound = true; + } + else if( !bYValuesFound && aRole == "values-y" ) + { + aYValues = DataSequenceToDoubleSequence( xSeq ); + bYValuesFound = true; + } + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + } + + if( ! bXValuesFound && + bYValuesFound ) + { + // initialize with 1, 2, ... + //first category (index 0) matches with real number 1.0 + aXValues.realloc( aYValues.getLength()); + for( i=0; i<aXValues.getLength(); ++i ) + aXValues[i] = i+1; + bXValuesFound = true; + } + + if( bXValuesFound && bYValuesFound && + aXValues.hasElements() && + aYValues.hasElements() ) + xOutCurveCalculator->recalculateRegression( aXValues, aYValues ); +} + +void RegressionCurveHelper::initializeCurveCalculator( + const Reference< XRegressionCurveCalculator > & xOutCurveCalculator, + const Reference< XDataSeries > & xSeries, + const Reference< frame::XModel > & xModel ) +{ + sal_Int32 nAxisType = ChartTypeHelper::getAxisType( + ChartModelHelper::getChartTypeOfSeries( xModel, xSeries ), 0 ); // x-axis + + initializeCurveCalculator( xOutCurveCalculator, + uno::Reference< data::XDataSource >( xSeries, uno::UNO_QUERY ), + (nAxisType == AxisType::REALNUMBER) ); +} + +bool RegressionCurveHelper::hasMeanValueLine( + const uno::Reference< XRegressionCurveContainer > & xRegCnt ) +{ + if( !xRegCnt.is()) + return false; + + try + { + const uno::Sequence< uno::Reference< XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( uno::Reference< XRegressionCurve > const & curve : aCurves ) + { + if( isMeanValueLine( curve )) + return true; + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + + return false; +} + +bool RegressionCurveHelper::isMeanValueLine( + const uno::Reference< chart2::XRegressionCurve > & xRegCurve ) +{ + uno::Reference< XServiceName > xServName( xRegCurve, uno::UNO_QUERY ); + return xServName.is() && + xServName->getServiceName() == + "com.sun.star.chart2.MeanValueRegressionCurve"; +} + +uno::Reference< chart2::XRegressionCurve > + RegressionCurveHelper::getMeanValueLine( + const uno::Reference< chart2::XRegressionCurveContainer > & xRegCnt ) +{ + if( xRegCnt.is()) + { + try + { + const uno::Sequence< uno::Reference< XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( uno::Reference< XRegressionCurve > const & curve : aCurves ) + { + if( isMeanValueLine( curve )) + return curve; + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + } + + return uno::Reference< chart2::XRegressionCurve >(); +} + +void RegressionCurveHelper::addMeanValueLine( + uno::Reference< XRegressionCurveContainer > const & xRegCnt, + const uno::Reference< XPropertySet > & xSeriesProp ) +{ + if( !xRegCnt.is() || + ::chart::RegressionCurveHelper::hasMeanValueLine( xRegCnt ) ) + return; + + // todo: use a valid context + uno::Reference< XRegressionCurve > xCurve( createMeanValueLine() ); + xRegCnt->addRegressionCurve( xCurve ); + + if( xSeriesProp.is()) + { + uno::Reference< XPropertySet > xProp( xCurve, uno::UNO_QUERY ); + if( xProp.is()) + { + xProp->setPropertyValue( "LineColor", + xSeriesProp->getPropertyValue( "Color")); + } + } +} + +void RegressionCurveHelper::removeMeanValueLine( + Reference< XRegressionCurveContainer > const & xRegCnt ) +{ + if( !xRegCnt.is()) + return; + + try + { + const Sequence< Reference< XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( Reference< XRegressionCurve > const & curve : aCurves ) + { + if( isMeanValueLine( curve )) + { + xRegCnt->removeRegressionCurve( curve ); + // attention: the iterator i has become invalid now + + // note: assume that there is only one mean-value curve + // to remove multiple mean-value curves remove the break + break; + } + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } +} + +uno::Reference< chart2::XRegressionCurve > RegressionCurveHelper::addRegressionCurve( + SvxChartRegress eType, + uno::Reference< XRegressionCurveContainer > const & xRegressionCurveContainer, + const uno::Reference< beans::XPropertySet >& xPropertySource, + const uno::Reference< beans::XPropertySet >& xEquationProperties ) +{ + uno::Reference< chart2::XRegressionCurve > xCurve; + + if( !xRegressionCurveContainer.is() ) + return xCurve; + + if( eType == SvxChartRegress::NONE ) + { + OSL_FAIL("don't create a regression curve of type none"); + return xCurve; + } + + OUString aServiceName( lcl_getServiceNameForType( eType )); + if( !aServiceName.isEmpty()) + { + // todo: use a valid context + xCurve.set( createRegressionCurveByServiceName( aServiceName ) ); + + if( xEquationProperties.is()) + xCurve->setEquationProperties( xEquationProperties ); + + uno::Reference< beans::XPropertySet > xProperties( xCurve, uno::UNO_QUERY ); + if( xProperties.is()) + { + if( xPropertySource.is()) + comphelper::copyProperties( xPropertySource, xProperties ); + else + { + uno::Reference< XPropertySet > xSeriesProp( xRegressionCurveContainer, uno::UNO_QUERY ); + if( xSeriesProp.is()) + { + xProperties->setPropertyValue( "LineColor", + xSeriesProp->getPropertyValue( "Color")); + } + } + } + } + xRegressionCurveContainer->addRegressionCurve( xCurve ); + + return xCurve; +} + +/** removes all regression curves that are not of type mean value + and returns true, if anything was removed + */ +bool RegressionCurveHelper::removeAllExceptMeanValueLine( + uno::Reference< chart2::XRegressionCurveContainer > const & xRegCnt ) +{ + bool bRemovedSomething = false; + if( xRegCnt.is()) + { + try + { + const uno::Sequence< uno::Reference< chart2::XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + std::vector< uno::Reference< chart2::XRegressionCurve > > aCurvesToDelete; + for( uno::Reference< chart2::XRegressionCurve > const & curve : aCurves ) + { + if( ! isMeanValueLine( curve )) + { + aCurvesToDelete.push_back( curve ); + } + } + + for (auto const& curveToDelete : aCurvesToDelete) + { + xRegCnt->removeRegressionCurve(curveToDelete); + bRemovedSomething = true; + } + } + catch( const uno::Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + } + return bRemovedSomething; +} + +void RegressionCurveHelper::removeEquations( + uno::Reference< chart2::XRegressionCurveContainer > const & xRegCnt ) +{ + if( !xRegCnt.is()) + return; + + try + { + const uno::Sequence< uno::Reference< chart2::XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( uno::Reference< chart2::XRegressionCurve > const & curve : aCurves ) + { + if( !isMeanValueLine( curve ) ) + { + uno::Reference< chart2::XRegressionCurve > xRegCurve( curve ); + if( xRegCurve.is() ) + { + uno::Reference< beans::XPropertySet > xEqProp( xRegCurve->getEquationProperties() ) ; + if( xEqProp.is()) + { + xEqProp->setPropertyValue( "ShowEquation", uno::Any( false )); + xEqProp->setPropertyValue( "XName", uno::Any( OUString("x") )); + xEqProp->setPropertyValue( "YName", uno::Any( OUString("f(x) ") )); + xEqProp->setPropertyValue( "ShowCorrelationCoefficient", uno::Any( false )); + } + } + } + } + } + catch( const uno::Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } +} + +uno::Reference< XRegressionCurve > RegressionCurveHelper::changeRegressionCurveType( + SvxChartRegress eType, + uno::Reference< XRegressionCurveContainer > const & xRegressionCurveContainer, + uno::Reference< XRegressionCurve > const & xRegressionCurve ) +{ + xRegressionCurveContainer->removeRegressionCurve( xRegressionCurve ); + return RegressionCurveHelper::addRegressionCurve( + eType, + xRegressionCurveContainer, + uno::Reference< beans::XPropertySet >( xRegressionCurve, uno::UNO_QUERY ), + xRegressionCurve->getEquationProperties()); +} + +uno::Reference< chart2::XRegressionCurve > RegressionCurveHelper::getFirstCurveNotMeanValueLine( + const Reference< XRegressionCurveContainer > & xRegCnt ) +{ + if( !xRegCnt.is()) + return nullptr; + + try + { + const uno::Sequence< uno::Reference< chart2::XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( uno::Reference< chart2::XRegressionCurve > const & curve : aCurves ) + { + if( ! isMeanValueLine( curve )) + { + return curve; + } + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + + return nullptr; +} + +uno::Reference< chart2::XRegressionCurve > RegressionCurveHelper::getRegressionCurveAtIndex( + const Reference< XRegressionCurveContainer >& xCurveContainer, + sal_Int32 aIndex ) +{ + if( !xCurveContainer.is()) + return nullptr; + + try + { + uno::Sequence< uno::Reference< chart2::XRegressionCurve > > aCurves(xCurveContainer->getRegressionCurves()); + if(0 <= aIndex && aIndex < aCurves.getLength()) + { + if(!isMeanValueLine(aCurves[aIndex])) + return aCurves[aIndex]; + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2"); + } + + return nullptr; +} + +SvxChartRegress RegressionCurveHelper::getRegressionType( + const Reference< XRegressionCurve > & xCurve ) +{ + SvxChartRegress eResult = SvxChartRegress::Unknown; + + try + { + Reference< lang::XServiceName > xServName( xCurve, uno::UNO_QUERY ); + if( xServName.is()) + { + OUString aServiceName( xServName->getServiceName() ); + + if( aServiceName == "com.sun.star.chart2.LinearRegressionCurve" ) + { + eResult = SvxChartRegress::Linear; + } + else if( aServiceName == "com.sun.star.chart2.LogarithmicRegressionCurve" ) + { + eResult = SvxChartRegress::Log; + } + else if( aServiceName == "com.sun.star.chart2.ExponentialRegressionCurve" ) + { + eResult = SvxChartRegress::Exp; + } + else if( aServiceName == "com.sun.star.chart2.PotentialRegressionCurve" ) + { + eResult = SvxChartRegress::Power; + } + else if( aServiceName == "com.sun.star.chart2.MeanValueRegressionCurve" ) + { + eResult = SvxChartRegress::MeanValue; + } + else if( aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve" ) + { + eResult = SvxChartRegress::Polynomial; + } + else if( aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve" ) + { + eResult = SvxChartRegress::MovingAverage; + } + } + } + catch( const Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2" ); + } + + return eResult; +} + +SvxChartRegress RegressionCurveHelper::getFirstRegressTypeNotMeanValueLine( + const Reference< XRegressionCurveContainer > & xRegCnt ) +{ + SvxChartRegress eResult = SvxChartRegress::NONE; + + if( xRegCnt.is()) + { + const Sequence< Reference< XRegressionCurve > > aCurves( + xRegCnt->getRegressionCurves()); + for( Reference< XRegressionCurve > const & curve : aCurves ) + { + SvxChartRegress eType = getRegressionType( curve ); + if( eType != SvxChartRegress::MeanValue && + eType != SvxChartRegress::Unknown ) + { + eResult = eType; + break; + } + } + } + + return eResult; +} + +OUString RegressionCurveHelper::getUINameForRegressionCurve( const Reference< XRegressionCurve >& xRegressionCurve ) +{ + OUString aResult = getRegressionCurveSpecificName(xRegressionCurve); + if (aResult.isEmpty()) + { + aResult = getRegressionCurveGenericName(xRegressionCurve); + if (!aResult.isEmpty()) + { + aResult += " (%SERIESNAME)"; + } + } + return aResult; +} + +OUString RegressionCurveHelper::getRegressionCurveGenericName(const Reference< XRegressionCurve >& xRegressionCurve) +{ + OUString aResult; + if(!xRegressionCurve.is()) + return aResult; + + Reference< lang::XServiceName > xServiceName( xRegressionCurve, uno::UNO_QUERY ); + if(!xServiceName.is()) + return aResult; + + OUString aServiceName(xServiceName->getServiceName()); + + if( aServiceName == "com.sun.star.chart2.MeanValueRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_MEAN); + } + else if( aServiceName == "com.sun.star.chart2.LinearRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_LINEAR); + } + else if( aServiceName == "com.sun.star.chart2.LogarithmicRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_LOG); + } + else if( aServiceName == "com.sun.star.chart2.ExponentialRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_EXP); + } + else if( aServiceName == "com.sun.star.chart2.PotentialRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_POWER); + } + else if( aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_POLYNOMIAL); + } + else if( aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve" ) + { + aResult = SchResId(STR_REGRESSION_MOVING_AVERAGE); + } + return aResult; +} + +OUString RegressionCurveHelper::getRegressionCurveSpecificName(const Reference< XRegressionCurve >& xRegressionCurve) +{ + OUString aResult; + + if(!xRegressionCurve.is()) + return aResult; + + Reference<XPropertySet> xProperties( xRegressionCurve, uno::UNO_QUERY ); + if(!xProperties.is()) + return aResult; + + xProperties->getPropertyValue("CurveName") >>= aResult; + + return aResult; +} + +OUString RegressionCurveHelper::getRegressionCurveName( const Reference< XRegressionCurve >& xRegressionCurve ) +{ + OUString aResult = getRegressionCurveSpecificName(xRegressionCurve); + if (aResult.isEmpty()) + return getRegressionCurveGenericName(xRegressionCurve); + return aResult; +} + +std::vector< Reference< chart2::XRegressionCurve > > + RegressionCurveHelper::getAllRegressionCurvesNotMeanValueLine( + const Reference< chart2::XDiagram > & xDiagram ) +{ + std::vector< Reference< chart2::XRegressionCurve > > aResult; + std::vector< Reference< chart2::XDataSeries > > aSeries( DiagramHelper::getDataSeriesFromDiagram( xDiagram )); + for (auto const& elem : aSeries) + { + Reference< chart2::XRegressionCurveContainer > xContainer(elem, uno::UNO_QUERY); + if(xContainer.is()) + { + const uno::Sequence< uno::Reference< chart2::XRegressionCurve > > aCurves(xContainer->getRegressionCurves()); + for( Reference< XRegressionCurve > const & curve : aCurves ) + { + if( ! isMeanValueLine( curve )) + aResult.push_back( curve ); + } + } + } + + return aResult; +} + +void RegressionCurveHelper::resetEquationPosition( + const Reference< chart2::XRegressionCurve > & xCurve ) +{ + if( !xCurve.is()) + return; + + try + { + const OUString aPosPropertyName( "RelativePosition" ); + Reference< beans::XPropertySet > xEqProp( xCurve->getEquationProperties()); // since m233: , uno::UNO_SET_THROW ); + if( xEqProp->getPropertyValue( aPosPropertyName ).hasValue()) + xEqProp->setPropertyValue( aPosPropertyName, uno::Any()); + } + catch( const uno::Exception & ) + { + DBG_UNHANDLED_EXCEPTION("chart2" ); + } +} + +sal_Int32 RegressionCurveHelper::getRegressionCurveIndex( + const Reference< chart2::XRegressionCurveContainer >& xContainer, + const Reference< chart2::XRegressionCurve >& xCurve ) +{ + if( xContainer.is()) + { + uno::Sequence< uno::Reference< XRegressionCurve > > aCurves( + xContainer->getRegressionCurves()); + + for( sal_Int32 i = 0; i < aCurves.getLength(); ++i ) + { + if( xCurve == aCurves[i] ) + return i; + } + } + return -1; +} + +bool RegressionCurveHelper::hasEquation( const Reference< chart2::XRegressionCurve > & xCurve ) +{ + bool bHasEquation = false; + if( xCurve.is()) + { + uno::Reference< beans::XPropertySet > xEquationProp( xCurve->getEquationProperties()); + if( xEquationProp.is()) + { + bool bShowEquation = false; + bool bShowCoefficient = false; + xEquationProp->getPropertyValue( "ShowEquation") >>= bShowEquation; + xEquationProp->getPropertyValue( "ShowCorrelationCoefficient") >>= bShowCoefficient; + bHasEquation = bShowEquation || bShowCoefficient; + } + } + return bHasEquation; +} + +} //namespace chart + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |