chart2/source/inc/RegressionCurveCalculator.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  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 #pragma once
  20
  21 #include <cppuhelper/implbase.hxx>
  22 #include <rtl/ustrbuf.hxx>
  23
  24 #include <com/sun/star/chart2/XRegressionCurveCalculator.hpp>
  25
  26 namespace com::sun::star::util { class XNumberFormatsSupplier; }
  27 namespace com::sun::star::util { class XNumberFormatter; }
  28
  29 namespace chart
  30 {
  31
  32 class RegressionCurveCalculator : public
  33     cppu::WeakImplHelper< css::chart2::XRegressionCurveCalculator >
  34 {
  35 public:
  36     RegressionCurveCalculator();
  37     virtual ~RegressionCurveCalculator() override;
  38
  39     static bool isLinearScaling(
  40         const css::uno::Reference< css::chart2::XScaling >& xScaling );
  41
  42     static bool isLogarithmicScaling(
  43         const css::uno::Reference< css::chart2::XScaling >& xScaling );
  44
  45 protected:
  46     virtual OUString ImplGetRepresentation(
  47         const css::uno::Reference< css::util::XNumberFormatter >& xNumFormatter,
  48         sal_Int32 nNumberFormatKey, sal_Int32* pFormulaLength = nullptr ) const = 0;
  49
  50     static OUString getFormattedString(
  51         const css::uno::Reference< css::util::XNumberFormatter >& xNumFormatter,
  52         sal_Int32 nNumberFormatKey,
  53         double fNumber,
  54         const sal_Int32* pStringLength );
  55
  56     static void addStringToEquation( OUStringBuffer& aStrEquation, sal_Int32& nLineLength, OUStringBuffer const & aAddString, const sal_Int32* pMaxLength );
  57
  58     double m_fCorrelationCoefficient;
  59
  60     sal_Int32 mDegree;
  61     bool  mForceIntercept;
  62     double    mInterceptValue;
  63     sal_Int32 mPeriod;
  64     OUString mXName, mYName;
  65
  66     // ____ XRegressionCurveCalculator ____
  67     virtual void SAL_CALL setRegressionProperties(
  68         sal_Int32 aDegree,
  69         sal_Bool  aForceIntercept,
  70         double    aInterceptValue,
  71         sal_Int32 aPeriod) override;
  72
  73     virtual void SAL_CALL recalculateRegression(
  74         const css::uno::Sequence< double >& aXValues,
  75         const css::uno::Sequence< double >& aYValues ) override = 0;
  76
  77     virtual double SAL_CALL getCurveValue( double x ) override = 0;
  78
  79     virtual css::uno::Sequence< css::geometry::RealPoint2D > SAL_CALL getCurveValues(
  80         double min,
  81         double max,
  82         sal_Int32 nPointCount,
  83         const css::uno::Reference< css::chart2::XScaling >& xScalingX,
  84         const css::uno::Reference< css::chart2::XScaling >& xScalingY,
  85         sal_Bool bMaySkipPointsInCalculation ) override;
  86
  87     virtual double SAL_CALL getCorrelationCoefficient() override;
  88
  89     virtual OUString SAL_CALL getRepresentation() override;
  90
  91     virtual OUString SAL_CALL getFormattedRepresentation(
  92         const css::uno::Reference< css::util::XNumberFormatsSupplier >& xNumFmtSupplier,
  93         sal_Int32 nNumberFormatKey, sal_Int32 nFormulaLength ) override;
  94
  95     virtual void SAL_CALL setXYNames(
  96         const OUString& aXName, const OUString& aYName ) override;
  97 };
  98
  99 } //  namespace chart
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */