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