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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 964 | jag | 1 | /* |
| 2 | * note.cc |
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| 2097 | jag | 3 | * DIN Is Noise is copyright (c) 2006-2024 Jagannathan Sampath |
| 1713 | jag | 4 | * DIN Is Noise is released under GNU Public License 2.0 |
| 1479 | jag | 5 | * For more information, please visit https://dinisnoise.org/ |
| 964 | jag | 6 | */ |
| 7 | |||
| 8 | #include "note.h" |
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| 9 | #include "main.h" |
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| 10 | #include "scale_info.h" |
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| 1607 | jag | 11 | #include "utils.h" |
| 964 | jag | 12 | #include <math.h> |
| 13 | #include <map> |
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| 14 | |||
| 15 | extern char BUFFER []; |
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| 1695 | jag | 16 | extern const char spc; |
| 1393 | jag | 17 | extern int NOTATION; |
| 964 | jag | 18 | |
| 19 | note::note () { |
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| 20 | hz = 0; |
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| 21 | step = 0; |
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| 22 | scale_pos = 0; |
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| 23 | octave = 0; |
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| 24 | } |
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| 25 | |||
| 26 | void note::set_freq (float f) { |
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| 27 | hz = f; |
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| 28 | hz2step (hz, step); |
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| 29 | sprintf (BUFFER, "%0.3f", hz); |
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| 30 | hz_name = BUFFER; |
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| 31 | } |
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| 32 | |||
| 33 | void note::set_freq (float key, float interval) { |
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| 34 | set_freq (key * interval * pow (2.0, octave)); |
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| 35 | } |
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| 36 | |||
| 37 | void note::set_name (const std::string& n) { |
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| 38 | name = n; |
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| 39 | } |
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| 40 | |||
| 41 | void note::set_name (const std::string& interval, int offset) { |
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| 42 | if (NOTATION == WESTERN) { |
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| 43 | extern std::map<std::string, int> NOTE_POS; |
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| 44 | extern const char* WESTERN_FLAT []; |
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| 45 | int np = NOTE_POS[interval]; |
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| 46 | name = WESTERN_FLAT[(offset + np) % 12]; |
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| 1829 | jag | 47 | } else if (NOTATION == NUMERIC) { |
| 48 | set_name (interval); |
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| 964 | jag | 49 | } else { |
| 1829 | jag | 50 | extern map<string, string> INT2IND; |
| 51 | set_name (INT2IND[interval]); |
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| 52 | } |
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| 964 | jag | 53 | } |
| 54 | |||
| 55 | void note::change_scale_pos (int j, scale_info& si) { |
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| 1607 | jag | 56 | int i = sign(j); |
| 57 | int k = abs(j); |
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| 58 | while (k--) { |
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| 59 | scale_pos += i; |
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| 60 | if (scale_pos < 0) { |
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| 61 | scale_pos = si.second_last_note; |
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| 62 | --octave; |
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| 63 | } |
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| 64 | else if (scale_pos > si.last_note) { |
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| 65 | scale_pos = 1; |
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| 66 | ++octave; |
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| 67 | } |
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| 68 | } |
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| 964 | jag | 69 | } |
| 70 | |||
| 71 | std::ofstream& note::save (std::ofstream& f) { |
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| 1695 | jag | 72 | f << name << spc << hz_name << spc << hz << spc << step << spc << scale_pos << spc << octave << spc; |
| 964 | jag | 73 | return f; |
| 74 | } |
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| 75 | |||
| 76 | std::ifstream& note::load (std::ifstream& f) { |
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| 77 | f >> name >> hz_name >> hz >> step >> scale_pos >> octave; |
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| 78 | return f; |
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| 79 | } |