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/*
* Copyright (c) 2020-2021 Vasile Vilvoiu <vasi@vilvoiu.ro>
*
* specgram is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef _VALUE_MAP_HPP_
#define _VALUE_MAP_HPP_
#include "input-parser.hpp"
#include <string>
#include <vector>
#include <complex>
enum class ValueMapType {
kLinear,
kDecibel
};
class ValueMap {
protected:
const double lower_;
const double upper_;
const std::string unit_;
ValueMap(double lower_, double upper, const std::string& unit);
public:
ValueMap() = delete;
auto GetLowerBound() const { return lower_; }
auto GetUpperBound() const { return upper_; }
virtual RealWindow Map(const RealWindow& input) = 0;
virtual std::string GetUnit() const;
static std::unique_ptr<ValueMap> Build(ValueMapType type, double lower, double upper, std::string unit);
};
class LinearValueMap : public ValueMap {
public:
LinearValueMap(double lower, double upper, const std::string& unit);
RealWindow Map(const RealWindow& input) override;
};
class DecibelValueMap : public ValueMap {
public:
/* unit parameter should NOT contain "dB" prefix */
DecibelValueMap(double lower, double upper, const std::string& unit);
RealWindow Map(const RealWindow& input) override;
std::string GetUnit() const override;
};
#endif
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