Subversion Repositories DIN Is Noise

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


#include "range.h"
#include "font.h"
#include "utils.h"
#include <map>
#include <fstream>
using namespace std;

extern ofstream dlog;

extern font fnt;

void range::calc (int octave, float start, map<string, float>& _intervals) {

  float start_interval = _intervals [intervals[0]];
  float end_interval = _intervals [intervals[1]];
  clamp<float> (1, start_interval, 2);
  clamp<float> (1, end_interval, 2);

  float start_frequency = start_interval * start;
  float end_frequency = end_interval * start;

  notes[0].set_frequency (start_frequency);
  notes[0].octave_position = octave + start_interval - 1;

  notes[1].set_frequency (end_frequency);
  notes[1].octave_position = octave + end_interval - 1;

  delta_step = notes[1].step - notes[0].step;
  delta_octave_position = notes[1].octave_position - notes[0].octave_position;

}

void range::draw_labels (int label_what, int show_frequency) {

  static float kr = 0.3f, kg = 1, kb = 0.3f; // key color
  static float fr = 0.3f, fg = fr, fb = fr; // frequency color
  static float nr = 1, ng = nr, nb = nr; // normal color

  float r0, g0, b0;
  float r1, g1, b1;

  if (key == range::LEFT) {
    r0 = kr; g0 = kg; b0 = kb;
    r1 = kr; g1 = kg; b1 = kb;
  } else {
    r0 = nr; g0 = ng; b0 = nb;
    r1 = fr; g1 = fg; b1 = fb;
  }

  glVertexPointer (2, GL_INT, 0, pts);

  int L = extents.left;
  glColor3f (r0, g0, b0);
  pts[0]=L; pts[1]=extents.bottom;
  pts[2]=L; pts[3]=extents.top;
  glDrawArrays (GL_LINES, 0, 2);
  draw_string (notes[0].name, L, ytop1);
  draw_string (notes[0].name, L, ybot1);

  if (show_frequency) {
    glColor3f (r1, g1, b1);
    draw_string (notes[0].hz_name, L, ybot2);
    draw_string (notes[0].hz_name, L, ytop2);
  }

  if (label_what == BOTH) {

    if (key == range::RIGHT) {
      r0 = kr; g0 = kg; b0 = kb;
      r1 = kr; g1 = kg; b1 = kb;
    } else {
      r0 = nr; g0 = ng; b0 = nb;
      r1 = fr; g1 = fg; b1 = fb;
    }

    int R = extents.right;
    glColor3f (r0, g0, b0);
    pts[0]=R; pts[1]=extents.bottom;
    pts[2]=R; pts[3]=extents.top;
    glVertexPointer (2, GL_INT, 0, pts);
    glDrawArrays (GL_LINES, 0, 2);

    draw_string (notes[1].name, R, ybot1);
    draw_string (notes[1].name, R, ytop1);

    if (show_frequency) {
      glColor3f (r1, g1, b1);
      draw_string (notes[1].hz_name, R, ybot2);
      draw_string (notes[1].hz_name, R, ytop2);
    }

  }

  glColor3f (fr, fr, fr);
  draw_string (octave, extents.midx, extents.midy);


}

void range::sample_rate_changed () {
  for (int i = 0; i < 2; ++i) notes[i].set_frequency (notes[i].hz);
  delta_step = notes[1].step - notes[0].step;
}