AAX_CStateTaperDelegate.h

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/*================================================================================================*/


#ifndef AAX_CSTATETAPERDELEGATE_H
#define AAX_CSTATETAPERDELEGATE_H

#include "AAX_ITaperDelegate.h"
#include "AAX.h"    //for types

#include <cmath>    //for floor()


template <typename T>
class AAX_CStateTaperDelegate : public AAX_ITaperDelegate<T>
{
public: 
    AAX_CStateTaperDelegate(T minValue=0, T maxValue=1);
    
    //Virtual Overrides
    AAX_CStateTaperDelegate<T>* Clone() const;
    T       GetMinimumValue()   const                       { return mMinValue; }
    T       GetMaximumValue()   const                       { return mMaxValue; }
    T       ConstrainRealValue(T value) const;
    T       NormalizedToReal(double normalizedValue) const;
    double  RealToNormalized(T realValue) const;
    
private:
    T   mMinValue;
    T   mMaxValue;
};

template <typename T>
AAX_CStateTaperDelegate<T>::AAX_CStateTaperDelegate(T minValue, T maxValue)  :  AAX_ITaperDelegate<T>(),
    mMinValue(minValue),
    mMaxValue(maxValue)
{

}

template <typename T>
AAX_CStateTaperDelegate<T>*     AAX_CStateTaperDelegate<T>::Clone() const
{
    return new AAX_CStateTaperDelegate(*this);
}

template <typename T>
T       AAX_CStateTaperDelegate<T>::ConstrainRealValue(T value) const
{
    if (value > mMaxValue)
        return mMaxValue;
    if (value < mMinValue)
        return mMinValue;
    return value;       
}

template <typename T>
T       AAX_CStateTaperDelegate<T>::NormalizedToReal(double normalizedValue) const
{
    double doubleRealValue = normalizedValue * (double(mMaxValue) - double(mMinValue)) + double(mMinValue);
    if ( doubleRealValue >= 0 )
        doubleRealValue += 0.5;
    else doubleRealValue -= 0.5;
    return ConstrainRealValue(static_cast<T>(doubleRealValue));
}

template <typename T>
double  AAX_CStateTaperDelegate<T>::RealToNormalized(T realValue) const
{
    realValue = ConstrainRealValue(realValue);
    double normalizedValue = (double(realValue) - double(mMinValue)) / (double(mMaxValue) - double(mMinValue));
    return normalizedValue;
}
    



#endif //AAX_CSTATETAPERDELEGATE_H