#ifndef FFT_DISPLAY_H

#define FFT_DISPLAY_H

#include <gr_complex.h>

#include <vector>

#include <qwidget.h>

#include <qwt_plot.h>

#include <qevent.h>

class fft_display_event:public QCustomEvent{

public:

        fft_display_event(std::vector<gr_complex>*, const float, const float);

        ~fft_display_event();

        const std::vector<gr_complex>& get_fft_data()const;

        float get_start_frequency()const;

        float get_stop_frequency()const;

        static const int EVENT_TYPE_ID;

protected:

private:

        std::vector<gr_complex> d_fft_data;

        float d_start_frequency;

        float d_stop_frequency;

};

class fft_display:public QwtPlot{

        Q_OBJECT

public:        

        fft_display(const unsigned int, QWidget* = ((QWidget*)0));

        virtual ~fft_display();

        virtual void customEvent(QCustomEvent*);

        void set_start_frequency(const float);

        float get_start_frequency()const;

        void set_stop_frequency(const float);

        float get_stop_frequency()const;

        unsigned int get_fft_bin_size()const;

public slots:

        virtual void set_data( const std::vector<gr_complex>& );

        virtual void update_display();

protected:

private:

        std::vector<gr_complex>* d_fft_data;

        double* d_plot_data;

        double* d_x_data;

        unsigned int d_fft_bin_size;

        float d_start_frequency;

        float d_stop_frequency;

};

#endif /* FFT_DISPLAY_H */