chart2/source/inc/RegressionCurveCalculator.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   9  * This file incorporates work covered by the following license notice:
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  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVECALCULATOR_HXX
  20 #define INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVECALCULATOR_HXX
  21
  22 #include <cppuhelper/implbase.hxx>
  23 #include <rtl/ustrbuf.hxx>
  24
  25 #include <com/sun/star/chart2/XRegressionCurveCalculator.hpp>
  26
  27 namespace com { namespace sun { namespace star { namespace util { class XNumberFormatsSupplier; } } } }
  28 namespace com { namespace sun { namespace star { namespace util { class XNumberFormatter; } } } }
  29
  30 namespace chart
  31 {
  32
  33 class RegressionCurveCalculator : public
  34     cppu::WeakImplHelper< css::chart2::XRegressionCurveCalculator >
  35 {
  36 public:
  37     RegressionCurveCalculator();
  38     virtual ~RegressionCurveCalculator() override;
  39
  40     static bool isLinearScaling(
  41         const css::uno::Reference< css::chart2::XScaling >& xScaling );
  42
  43     static bool isLogarithmicScaling(
  44         const css::uno::Reference< css::chart2::XScaling >& xScaling );
  45
  46 protected:
  47     virtual OUString ImplGetRepresentation(
  48         const css::uno::Reference< css::util::XNumberFormatter >& xNumFormatter,
  49         sal_Int32 nNumberFormatKey, sal_Int32* pFormulaLength = nullptr ) const = 0;
  50
  51     static OUString getFormattedString(
  52         const css::uno::Reference< css::util::XNumberFormatter >& xNumFormatter,
  53         sal_Int32 nNumberFormatKey,
  54         double fNumber,
  55         const sal_Int32* pStringLength );
  56
  57     static void addStringToEquation( OUStringBuffer& aStrEquation, sal_Int32& nLineLength, OUStringBuffer const & aAddString, const sal_Int32* pMaxLength );
  58
  59     double m_fCorrelationCoeffitient;
  60
  61     sal_Int32 mDegree;
  62     bool  mForceIntercept;
  63     double    mInterceptValue;
  64     sal_Int32 mPeriod;
  65     OUString mXName, mYName;
  66
  67     // ____ XRegressionCurveCalculator ____
  68     virtual void SAL_CALL setRegressionProperties(
  69         sal_Int32 aDegree,
  70         sal_Bool  aForceIntercept,
  71         double    aInterceptValue,
  72         sal_Int32 aPeriod) override;
  73
  74     virtual void SAL_CALL recalculateRegression(
  75         const css::uno::Sequence< double >& aXValues,
  76         const css::uno::Sequence< double >& aYValues ) override = 0;
  77
  78     virtual double SAL_CALL getCurveValue( double x ) override = 0;
  79
  80     virtual css::uno::Sequence< css::geometry::RealPoint2D > SAL_CALL getCurveValues(
  81         double min,
  82         double max,
  83         sal_Int32 nPointCount,
  84         const css::uno::Reference< css::chart2::XScaling >& xScalingX,
  85         const css::uno::Reference< css::chart2::XScaling >& xScalingY,
  86         sal_Bool bMaySkipPointsInCalculation ) override;
  87
  88     virtual double SAL_CALL getCorrelationCoefficient() override;
  89
  90     virtual OUString SAL_CALL getRepresentation() override;
  91
  92     virtual OUString SAL_CALL getFormattedRepresentation(
  93         const css::uno::Reference< css::util::XNumberFormatsSupplier >& xNumFmtSupplier,
  94         sal_Int32 nNumberFormatKey, sal_Int32 nFormulaLength ) override;
  95
  96     virtual void SAL_CALL setXYNames(
  97         const OUString& aXName, const OUString& aYName ) override;
  98 };
  99
 100 } //  namespace chart
 101
 102 // INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVECALCULATOR_HXX
 103 #endif
 104
 105 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */