| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_chart2.hxx" |
| |
| #include "RegressionCurveCalculator.hxx" |
| #include "RegressionCalculationHelper.hxx" |
| #include "servicenames_coosystems.hxx" |
| |
| #include <comphelper/processfactory.hxx> |
| #include <rtl/math.hxx> |
| |
| #include <com/sun/star/lang/XServiceName.hpp> |
| |
| using namespace ::com::sun::star; |
| |
| using ::com::sun::star::uno::Reference; |
| using ::com::sun::star::uno::Sequence; |
| using ::rtl::OUString; |
| |
| namespace chart |
| { |
| |
| RegressionCurveCalculator::RegressionCurveCalculator() : |
| m_fCorrelationCoeffitient( 0.0 ) |
| { |
| ::rtl::math::setNan( & m_fCorrelationCoeffitient ); |
| } |
| |
| RegressionCurveCalculator::~RegressionCurveCalculator() |
| {} |
| |
| bool RegressionCurveCalculator::isLinearScaling( |
| const Reference< chart2::XScaling > & xScaling ) |
| { |
| // no scaling means linear |
| if( !xScaling.is()) |
| return true; |
| static OUString aLinScalingServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.chart2.LinearScaling" )); |
| uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY ); |
| return (xServiceName.is() && xServiceName->getServiceName().equals( aLinScalingServiceName )); |
| } |
| |
| bool RegressionCurveCalculator::isLogarithmicScaling( |
| const Reference< chart2::XScaling > & xScaling ) |
| { |
| static OUString aLogScalingServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.chart2.LogarithmicScaling" )); |
| uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY ); |
| return (xServiceName.is() && xServiceName->getServiceName().equals( aLogScalingServiceName )); |
| } |
| |
| |
| OUString RegressionCurveCalculator::getFormattedString( |
| const Reference< util::XNumberFormatter >& xNumFormatter, |
| ::sal_Int32 nNumberFormatKey, |
| double fNumber ) const |
| { |
| OUString aResult; |
| |
| if( xNumFormatter.is()) |
| aResult = xNumFormatter->convertNumberToString( nNumberFormatKey, fNumber ); |
| else |
| aResult = NUMBER_TO_STR( fNumber ); |
| |
| return aResult; |
| } |
| |
| Sequence< geometry::RealPoint2D > SAL_CALL RegressionCurveCalculator::getCurveValues( |
| double min, double max, ::sal_Int32 nPointCount, |
| const Reference< chart2::XScaling >& xScalingX, |
| const Reference< chart2::XScaling >& /* xScalingY */, |
| ::sal_Bool /* bMaySkipPointsInCalculation */ ) |
| throw (lang::IllegalArgumentException, |
| uno::RuntimeException) |
| { |
| if( nPointCount < 2 ) |
| throw lang::IllegalArgumentException(); |
| |
| // determine if scaling and inverse scaling for x-values work |
| bool bDoXScaling( xScalingX.is()); |
| uno::Reference< chart2::XScaling > xInverseScaling; |
| if( bDoXScaling ) |
| xInverseScaling.set( xScalingX->getInverseScaling()); |
| bDoXScaling = bDoXScaling && xInverseScaling.is(); |
| |
| Sequence< geometry::RealPoint2D > aResult( nPointCount ); |
| |
| double fMin( min ); |
| double fFact = (max - min) / double(nPointCount-1); |
| if( bDoXScaling ) |
| { |
| fMin = xScalingX->doScaling( min ); |
| fFact = (xScalingX->doScaling( max ) - fMin) / double(nPointCount-1); |
| } |
| |
| for(sal_Int32 nP=0; nP<nPointCount; nP++) |
| { |
| double x = fMin + nP * fFact; |
| if( bDoXScaling ) |
| x = xInverseScaling->doScaling( x ); |
| aResult[nP].X = x; |
| aResult[nP].Y = this->getCurveValue( x ); |
| } |
| |
| return aResult; |
| } |
| |
| double SAL_CALL RegressionCurveCalculator::getCorrelationCoefficient() |
| throw (uno::RuntimeException) |
| { |
| return m_fCorrelationCoeffitient; |
| } |
| |
| OUString SAL_CALL RegressionCurveCalculator::getRepresentation() |
| throw (uno::RuntimeException) |
| { |
| return ImplGetRepresentation( Reference< util::XNumberFormatter >(), 0 ); |
| } |
| |
| OUString SAL_CALL RegressionCurveCalculator::getFormattedRepresentation( |
| const Reference< util::XNumberFormatsSupplier > & xNumFmtSupplier, |
| ::sal_Int32 nNumberFormatKey ) |
| throw (uno::RuntimeException) |
| { |
| // create and prepare a number formatter |
| if( !xNumFmtSupplier.is()) |
| return getRepresentation(); |
| Reference< util::XNumberFormatter > xNumFormatter; |
| Reference< lang::XMultiServiceFactory > xFact( comphelper::getProcessServiceFactory(), uno::UNO_QUERY ); |
| if( xFact.is()) |
| xNumFormatter.set( xFact->createInstance( |
| OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.util.NumberFormatter"))), uno::UNO_QUERY ); |
| if( !xNumFormatter.is()) |
| return getRepresentation(); |
| xNumFormatter->attachNumberFormatsSupplier( xNumFmtSupplier ); |
| |
| return ImplGetRepresentation( xNumFormatter, nNumberFormatKey ); |
| } |
| |
| |
| } // namespace chart |