Subversion Repositories DIN Is Noise

/*
* note.cc
* DIN Is Noise is copyright (c) 2006-2018 Jagannathan Sampath
* For more information, please visit http://dinisnoise.org/
*/


#include "note.h"
#include "main.h"
#include "scale_info.h"
#include <math.h>
#include <map>

extern char BUFFER [];

note::note () {
  hz = 0;
  step = 0;
  octave_position = 0;
  scale_pos = 0;
  octave = 0;
}

void note::set_freq (float f) {
  hz = f;
  hz2step (hz, step);
  sprintf (BUFFER, "%0.3f", hz);
  hz_name = BUFFER;
}

void note::set_freq (float key, float interval) {
  set_freq (key * interval * pow (2.0, octave));
}

void note::set_name (const std::string& n) {
  name = n;
}

void note::set_name (const std::string& interval, int) {
  extern int NOTATION;
  if (NOTATION == WESTERN) {
    extern std::map<std::string, int> NOTE_POS;
    extern const char* WESTERN_FLAT [];
    int np = NOTE_POS[interval];
    name = WESTERN_FLAT[np];
  } else {
    set_name (interval);
  }
}

void note::change_scale_pos (int j, scale_info& si) {
  scale_pos += j;
  if (scale_pos < 0) {
    scale_pos = si.second_last_note;
    --octave;
  }
  else if (scale_pos > si.last_note) {
    scale_pos = 1;
    ++octave;
  }
}