KwidgetProcessor_XyPad.h

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namespace krotos
{
    class KwidgetProcessor_XyPad : public KwidgetProcessor
    {
      public:
        using Parameters = Kwidget_XyPad::Parameters;
 
        enum CurveMode
        {
            Linear,
            Exponential
        };
 
        KwidgetProcessor_XyPad(Kwidget& owner);
 
        void prepare(double sampleRate, int samplesPerBlock) override;
        // Not used
        void process(AudioBuffer<float>& buffer) override;
 
        // Peak XY
        static float mapToCurve(const float* incomingValue, const float depth);
        static float mapToLine(const float* incomingValue, const float depth);
 
        // 4 Zone XY
        static float mapToDistanceTL(const float* incomingValues, const float depth);
        static float mapToDistanceTR(const float* incomingValues, const float depth);
        static float mapToDistanceBL(const float* incomingValues, const float depth);
        static float mapToDistanceBR(const float* incomingValues, const float depth);
        static float mapToDistance(const float* incomingValues, const float depth, const Point<float> corner);
        static float constPower(float val);
        // Distance XY
        static float mapToDistDecreasing(const float* incomingValues, const float depth);
        static float mapToDistBranched(const float* incomingValues, const float depth);
        static float mapToDistIncreasing(const float* incomingValues, const float depth);
        static float attenuationCurve(float val);
        static float increaseCurve(float val);
        static float distanceYTop(const float* incomingValues); // calculate distance from top in Y
        // Polar XY
        static float mapToRadiusDecreasing(const float* incomingValues, const float depth);
        static float mapToRadiusIncreasing(const float* incomingValues, const float depth);
 
      private:
        enum ModulatorIndex
        {
            posX = 0,
            posY = 1,
            posX2 = 2,
            posY2 = 3
        };
 
        static const Point<float> m_topLeft;
        static const Point<float> m_topRight;
        static const Point<float> m_bottomLeft;
        static const Point<float> m_bottomRight;
        static const Point<float> m_centre;
        static const float m_topYCoordinate;
 
        // position 0 corresponds to posX, position 1 corresponds to posY
        OwnedArray<KParameter::AudioListenerObject> m_listenerObjects;
        std::vector<float> m_paramValues;
 
        // normalised Value of Radius - 4Zone
        static constexpr float m_radius = 0.833f;
        static constexpr float m_cntrDiag = 0.707107f;
        CurveMode m_mode;
 
        int m_indexOfVelocityModulator{0};
        AudioBuffer<float> m_buffer;
        double m_sampleRate{0.0};
        int m_samplesPerBlock{0};
 
        MouseVelocityExtractor m_puckX;
        MouseVelocityExtractor m_puckY;
 
        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(KwidgetProcessor_XyPad)
    };
} // namespace krotos