git.gag.com Git - debian/gnuradio/blob - gr-qtgui/src/lib/fftdisplay.h

   1 #ifndef FFT_DISPLAY_H
   2 #define FFT_DISPLAY_H
   3
   4 #include <gr_complex.h>
   5
   6 #include <vector>
   7
   8 #include <qwidget.h>
   9 #include <qwt_plot.h>
  10 #include <qevent.h>
  11
  12 class fft_display_event:public QCustomEvent{
  13 public:
  14         fft_display_event(std::vector<gr_complex>*, const float, const float);
  15         ~fft_display_event();
  16
  17         const std::vector<gr_complex>& get_fft_data()const;
  18         float get_start_frequency()const;
  19         float get_stop_frequency()const;
  20
  21         static const int EVENT_TYPE_ID;
  22 protected:
  23
  24 private:
  25         std::vector<gr_complex> d_fft_data;
  26         float d_start_frequency;
  27         float d_stop_frequency;
  28 };
  29
  30 class fft_display:public QwtPlot{
  31         Q_OBJECT
  32 public:
  33         fft_display(const unsigned int, QWidget* = ((QWidget*)0));
  34         virtual ~fft_display();
  35
  36         virtual void customEvent(QCustomEvent*);
  37
  38         void set_start_frequency(const float);
  39         float get_start_frequency()const;
  40
  41         void set_stop_frequency(const float);
  42         float get_stop_frequency()const;
  43
  44         unsigned int get_fft_bin_size()const;
  45
  46 public slots:
  47         virtual void set_data( const std::vector<gr_complex>& );
  48         virtual void update_display();
  49
  50 protected:
  51
  52 private:
  53         std::vector<gr_complex>* d_fft_data;
  54         double* d_plot_data;
  55         double* d_x_data;
  56         unsigned int d_fft_bin_size;
  57         float d_start_frequency;
  58         float d_stop_frequency;
  59 };
  60
  61 #endif /* FFT_DISPLAY_H */