/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file incorporates work covered by the following license notice:
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVEHELPER_HXX
#define INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVEHELPER_HXX

#include <com/sun/star/chart2/XRegressionCurve.hpp>
#include <com/sun/star/chart2/XRegressionCurveCalculator.hpp>
#include <com/sun/star/chart2/XRegressionCurveContainer.hpp>
#include <com/sun/star/chart2/data/XDataSource.hpp>
#include <com/sun/star/chart2/XDataSeries.hpp>
#include <com/sun/star/chart2/XDiagram.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include "charttoolsdllapi.hxx"

#include <vector>

namespace chart
{

class OOO_DLLPUBLIC_CHARTTOOLS RegressionCurveHelper
{
public:
    /// returns a model mean-value line
    SAL_DLLPRIVATE static ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve >
        createMeanValueLine(
            const ::com::sun::star::uno::Reference<
                ::com::sun::star::uno::XComponentContext > & xContext );

    /// returns a model regression curve
    SAL_DLLPRIVATE static ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve >
        createRegressionCurveByServiceName(
            const ::com::sun::star::uno::Reference<
                ::com::sun::star::uno::XComponentContext > & xContext,
            OUString aServiceName );

    static bool hasMeanValueLine(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveContainer > & xRegCnt );

    static bool isMeanValueLine(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve > & xRegCurve );

    static ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve >
        getMeanValueLine(
            const ::com::sun::star::uno::Reference<
                ::com::sun::star::chart2::XRegressionCurveContainer > & xRegCnt );

    /** creates a mean-value line and adds it to the container.

         @param xSeriesProp
             If set, this property-set will be used to apply a line color
     */
    static void addMeanValueLine(
        ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveContainer > & xRegCnt,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::uno::XComponentContext > & xContext,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::beans::XPropertySet > & xSeriesProp );

    static void removeMeanValueLine(
        ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveContainer > & xRegCnt );

    enum tRegressionType
    {
        REGRESSION_TYPE_NONE,
        REGRESSION_TYPE_LINEAR,
        REGRESSION_TYPE_LOG,
        REGRESSION_TYPE_EXP,
        REGRESSION_TYPE_POWER,
        REGRESSION_TYPE_POLYNOMIAL,
        REGRESSION_TYPE_MOVING_AVERAGE,
        REGRESSION_TYPE_MEAN_VALUE,
        REGRESSION_TYPE_UNKNOWN
    };

    /** Returns the first regression curve found that is not of type
        mean-value line
     */
    static com::sun::star::uno::Reference<com::sun::star::chart2::XRegressionCurve >
        getFirstCurveNotMeanValueLine(
            const com::sun::star::uno::Reference<
                com::sun::star::chart2::XRegressionCurveContainer >& xCurveContainer );

    /** Returns the type of the first regression curve found that is not of type
        mean-value line
     */
    static tRegressionType getFirstRegressTypeNotMeanValueLine(
        const com::sun::star::uno::Reference<
            com::sun::star::chart2::XRegressionCurveContainer >& xCurveContainer );

    static tRegressionType getRegressionType(
        const com::sun::star::uno::Reference<
            com::sun::star::chart2::XRegressionCurve >& xCurve );

    /** @param xPropertySource is taken as source to copy all properties from if
               not null
        @param xEquationProperties is set at the new regression curve as
               equation properties if not null
    */
    static com::sun::star::uno::Reference< com::sun::star::chart2::XRegressionCurve >
        addRegressionCurve(
            tRegressionType eType,
            com::sun::star::uno::Reference<
                com::sun::star::chart2::XRegressionCurveContainer >& xCurveContainer,
            const com::sun::star::uno::Reference<
                com::sun::star::uno::XComponentContext >& xContext,
            const com::sun::star::uno::Reference<
                com::sun::star::beans::XPropertySet >& xPropertySource =
                    com::sun::star::uno::Reference< com::sun::star::beans::XPropertySet >(),
            const com::sun::star::uno::Reference<
                com::sun::star::beans::XPropertySet >& xEquationProperties =
                    com::sun::star::uno::Reference< com::sun::star::beans::XPropertySet >() );

    static bool removeAllExceptMeanValueLine(
        com::sun::star::uno::Reference<
            com::sun::star::chart2::XRegressionCurveContainer >& xCurveContainer );

    static void removeEquations(
        com::sun::star::uno::Reference<
            com::sun::star::chart2::XRegressionCurveContainer >& xCurveContainer );

    static com::sun::star::uno::Reference< com::sun::star::chart2::XRegressionCurve >
        changeRegressionCurveType(
            tRegressionType eType,
            com::sun::star::uno::Reference<
                com::sun::star::chart2::XRegressionCurveContainer > & xRegressionCurveContainer,
            com::sun::star::uno::Reference<
                com::sun::star::chart2::XRegressionCurve > & xRegressionCurve,
            const com::sun::star::uno::Reference<
                com::sun::star::uno::XComponentContext > & xContext );

    /// returns a calculator object for regression curves (used by the view)
    static com::sun::star::uno::Reference< com::sun::star::chart2::XRegressionCurveCalculator >
        createRegressionCurveCalculatorByServiceName( OUString aServiceName );

    /** recalculates the regression parameters according to the data given in
        the data source.

        A sequence having the role "values-x" will be used as x-values for the
        calculation if found.  Otherwise a sequence (1, 2, 3, ...) of category
        indexes will be used for the recalculateRegression() method of the
        regression curve.

        The first sequence having the role "values-y" will be used as y-values
        for the recalculateRegression() method of the regression curve.

        @param bUseXValuesIfAvailable
            If false, the sequence (1, 2, 3, ...) will always be used, even if
            there is a data-sequence with role "values-x"
     */
    SAL_DLLPRIVATE static void initializeCurveCalculator(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveCalculator > & xOutCurveCalculator,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::data::XDataSource > & xSource,
        bool bUseXValuesIfAvailable = true );

    /** Same method as above, but uses the given XModel to determine the
        parameter bUseXValuesIfAvailable in the above function.  It is also
        necessary that the data::XDataSource is an XDataSeries, thus this parameter
        also changed.
     */
    static void initializeCurveCalculator(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveCalculator > & xOutCurveCalculator,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XDataSeries > & xSeries,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::frame::XModel > & xModel );

    static OUString getUINameForRegressionCurve( const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve >& xCurve );

    static ::std::vector< ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve > > getAllRegressionCurvesNotMeanValueLine(
                const ::com::sun::star::uno::Reference<
                    ::com::sun::star::chart2::XDiagram > & xDiagram );

    static void resetEquationPosition( const ::com::sun::star::uno::Reference<
                                       ::com::sun::star::chart2::XRegressionCurve > & xCurve );

    /// @return the index of the given curve in the given container. -1 if not contained
    static sal_Int32 getRegressionCurveIndex(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurveContainer > & xContainer,
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve > & xCurve );

    static bool hasEquation(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::chart2::XRegressionCurve > & xCurve );

private:
    // not implemented
    RegressionCurveHelper();
};

} //  namespace chart

// INCLUDED_CHART2_SOURCE_INC_REGRESSIONCURVEHELPER_HXX
#endif

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