55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#ifndef WINDOWFUNCTION_H
|
|
#define WINDOWFUNCTION_H
|
|
|
|
#include "savable.h"
|
|
|
|
#include <QWidget>
|
|
#include <complex>
|
|
#include <vector>
|
|
|
|
class WindowFunction : public QObject, public Savable
|
|
{
|
|
Q_OBJECT;
|
|
public:
|
|
enum class Type {
|
|
Rectangular,
|
|
// Kaiser,
|
|
Gaussian,
|
|
// Chebyshev,
|
|
Hann,
|
|
Hamming,
|
|
Blackman,
|
|
// always has to be the last entry
|
|
Last,
|
|
};
|
|
static QString typeToName(Type type);
|
|
|
|
WindowFunction(Type type = Type::Hamming);
|
|
|
|
void apply(std::vector<std::complex<double>>& data) const;
|
|
void reverse(std::vector<std::complex<double>>& data) const;
|
|
|
|
QWidget *createEditor();
|
|
|
|
Type getType() const;
|
|
QString getDescription();
|
|
|
|
virtual nlohmann::json toJSON() override;
|
|
virtual void fromJSON(nlohmann::json j) override;
|
|
|
|
signals:
|
|
void changed();
|
|
|
|
private:
|
|
double getFactor(unsigned int n, unsigned int N) const;
|
|
Type type;
|
|
// parameters for the different types. Not all windows use one and most only one.
|
|
// But keeping all parameters for all windows allows switching between window types
|
|
// while remembering the settings for each type
|
|
double kaiser_alpha;
|
|
double gaussian_sigma;
|
|
double chebyshev_alpha;
|
|
};
|
|
|
|
#endif // WINDOWFUNCTION_H
|