#ifndef FFT_H#define FFT_H#include <qwidget.h>#include <X11/Xlib.h>/* ------------------------------------------------------------------------ */class FFTWindow : public QWidget{    Q_OBJECT;public:    FFTWindow(QWidget *parent, char *name);public slots:    void new_params(struct SOUNDPARAMS *params);    void new_data(void *data);    void set_ylog(int linear);protected:    void resizeEvent(QResizeEvent *event);    private:    unsigned long  fore,back;    GC             gc;    int            *logmap;    XSegment       *segments;    short          *buffer;    int            afmt,channels,rate;    int            audio_size, fft_size, lmax;    bool           ylog;        void make_logmap();    void calculate(unsigned char *data);    void drawhist();};#endif