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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * Copyright 2008 by Sun Microsystems, Inc.
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 * OpenOffice.org - a multi-platform office productivity suite
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 * $RCSfile: Scaling.hxx,v $
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#ifndef _CHART2_SCALING_HXX
#define _CHART2_SCALING_HXX
#include "ServiceMacros.hxx"
#include <com/sun/star/chart2/XScaling.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XServiceName.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <cppuhelper/implbase3.hxx>

//.............................................................................
namespace chart
{
//.............................................................................

//-----------------------------------------------------------------------------
/**
*/

class LogarithmicScaling :
        public ::cppu::WeakImplHelper3 <
        ::com::sun::star::chart2::XScaling,
        ::com::sun::star::lang::XServiceName,
        ::com::sun::star::lang::XServiceInfo
        >
{
public:
    /// base is 10.0
    explicit LogarithmicScaling(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::uno::XComponentContext > & xContext );
    LogarithmicScaling( double fBase = 10.0 );
    virtual ~LogarithmicScaling();

    /// establish methods for factory instatiation
    APPHELPER_SERVICE_FACTORY_HELPER( LogarithmicScaling )
    /// declare XServiceInfo methods
    APPHELPER_XSERVICEINFO_DECL()

    // ____ XScaling ____
    virtual double SAL_CALL doScaling( double value )
        throw (::com::sun::star::uno::RuntimeException);

    virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::chart2::XScaling > SAL_CALL
        getInverseScaling() throw (::com::sun::star::uno::RuntimeException);

    // ____ XServiceName ____
    virtual ::rtl::OUString SAL_CALL getServiceName()
        throw (::com::sun::star::uno::RuntimeException);

private:
    const double m_fBase;
    const double m_fLogOfBase;

    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >      m_xContext;
};

// ----------------------------------------

class ExponentialScaling :
        public ::cppu::WeakImplHelper3 <
        ::com::sun::star::chart2::XScaling,
        ::com::sun::star::lang::XServiceName,
        ::com::sun::star::lang::XServiceInfo
        >
{
public:
    /// base is 10.0
    explicit ExponentialScaling(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::uno::XComponentContext > & xContext );
    explicit ExponentialScaling( double fBase = 10.0 );
    virtual ~ExponentialScaling();

    /// establish methods for factory instatiation
    APPHELPER_SERVICE_FACTORY_HELPER( ExponentialScaling )
    /// declare XServiceInfo methods
    APPHELPER_XSERVICEINFO_DECL()

    // ____ XScaling ____
        virtual double SAL_CALL
    doScaling( double value )
        throw (::com::sun::star::uno::RuntimeException);

        virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::chart2::XScaling > SAL_CALL
    getInverseScaling() throw (::com::sun::star::uno::RuntimeException);

    // ____ XServiceName ____
    virtual ::rtl::OUString SAL_CALL getServiceName()
        throw (::com::sun::star::uno::RuntimeException);

private:
    const double m_fBase;

    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >      m_xContext;
};

// ----------------------------------------

class LinearScaling : public ::cppu::WeakImplHelper3 <
        ::com::sun::star::chart2::XScaling,
        ::com::sun::star::lang::XServiceName,
        ::com::sun::star::lang::XServiceInfo
        >
{
public:
    /// y(x) = x
    explicit LinearScaling(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::uno::XComponentContext > & xContext );
    /// y(x) = fSlope * x + fOffset
    LinearScaling( double fSlope = 1.0, double fOffset = 0.0 );
    virtual ~LinearScaling();

    /// establish methods for factory instatiation
    APPHELPER_SERVICE_FACTORY_HELPER( LinearScaling )
    /// declare XServiceInfo methods
    APPHELPER_XSERVICEINFO_DECL()

    // ____ XScaling ____
    virtual double SAL_CALL doScaling( double value )
        throw (::com::sun::star::uno::RuntimeException);

    virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::chart2::XScaling > SAL_CALL
        getInverseScaling() throw (::com::sun::star::uno::RuntimeException);

    // ____ XServiceName ____
    virtual ::rtl::OUString SAL_CALL getServiceName()
        throw (::com::sun::star::uno::RuntimeException);

private:
    const double m_fSlope;
    const double m_fOffset;

    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >      m_xContext;
};

// ----------------------------------------

class PowerScaling : public ::cppu::WeakImplHelper3 <
        ::com::sun::star::chart2::XScaling,
        ::com::sun::star::lang::XServiceName,
        ::com::sun::star::lang::XServiceInfo
        >
{
public:
    /// exponent 10.0
    explicit PowerScaling(
        const ::com::sun::star::uno::Reference<
            ::com::sun::star::uno::XComponentContext > & xContext );
    explicit PowerScaling( double fExponent = 10.0 );
    virtual ~PowerScaling();

    /// establish methods for factory instatiation
    APPHELPER_SERVICE_FACTORY_HELPER( PowerScaling )
    /// declare XServiceInfo methods
    APPHELPER_XSERVICEINFO_DECL()

    // ____ XScaling ____
        virtual double SAL_CALL
    doScaling( double value )
        throw (::com::sun::star::uno::RuntimeException);

        virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::chart2::XScaling > SAL_CALL
    getInverseScaling() throw (::com::sun::star::uno::RuntimeException);

    // ____ XServiceName ____
    virtual ::rtl::OUString SAL_CALL getServiceName()
        throw (::com::sun::star::uno::RuntimeException);

private:
    const double m_fExponent;

    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >      m_xContext;
};

//.............................................................................
} //namespace chart
//.............................................................................
#endif