AAX_CStateTaperDelegate.h

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/*================================================================================================*/
/*
 *
 *  Copyright 2014-2017, 2019, 2023-2024 Avid Technology, Inc.
 *  All rights reserved.
 *  
 *  This file is part of the Avid AAX SDK.
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 *  Agreement and Avid Privacy Policy.
 *  
 *  AAX SDK License: https://developer.avid.com/aax
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 *  Or: You may also use this code under the terms of the GPL v3 (see
 *  www.gnu.org/licenses).
 *  
 *  THE AAX SDK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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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 AAX_OVERRIDE;
    T       GetMinimumValue()   const AAX_OVERRIDE          { return mMinValue; }
    T       GetMaximumValue()   const AAX_OVERRIDE          { return mMaxValue; }
    T       ConstrainRealValue(T value) const AAX_OVERRIDE;
    T       NormalizedToReal(double normalizedValue) const AAX_OVERRIDE;
    double  RealToNormalized(T realValue) const AAX_OVERRIDE;
    
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 (mMinValue == mMaxValue)
        return mMinValue;
        
    const T& highValue = mMaxValue > mMinValue ? mMaxValue : mMinValue;
    const T& lowValue = mMaxValue > mMinValue ? mMinValue : mMaxValue;
    
    if (value > highValue)
        return highValue;
    if (value < lowValue)
        return lowValue;
    
    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 = (mMaxValue == mMinValue) ? 0.5 : (double(realValue) - double(mMinValue)) / (double(mMaxValue) - double(mMinValue));
    return normalizedValue;
}
    
 
 
 
#endif //AAX_CSTATETAPERDELEGATE_H