Transposer.hpp

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#pragma once
 
#include <Banks/Bank.hpp>
#include <Control_Surface/Control_Surface_Class.hpp>
#include <Def/Def.hpp>
 
BEGIN_CS_NAMESPACE
 
template <int8_t MinTransposition, int8_t MaxTransposition>
class Transposer : public Bank<MaxTransposition - MinTransposition + 1> {
  public:
    Transposer(int8_t step = 1)
        : Bank<NumBanks>(step, -MinTransposition, MinTransposition) {
        static_assert(MinTransposition <= 0,
                      "Error: the minimum transposition must be negative");
        static_assert(MaxTransposition >= 0,
                      "Error: the maximum transposition must be positive");
    }
 
    void setTransposition(int8_t tp) { this->select(tp - MinTransposition); }
 
    int8_t getTransposition() const {
        return this->getSelection() + MinTransposition;
    }
 
    int8_t getTranspositionSemitones() const { return this->getOffset(); }
 
    static constexpr setting_t N = MaxTransposition - MinTransposition + 1;
    static constexpr setting_t NumBanks = N;
};
 
END_CS_NAMESPACE