106 lines
4 KiB
C++
106 lines
4 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2002-2011 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#ifndef __PITCHSPELLING_H__
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#define __PITCHSPELLING_H__
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#include "mscore.h"
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namespace Ms {
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class MidiNote;
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class Note;
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enum class Key;
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const int INVALID_PITCH = -1;
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#if 0
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enum {
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STEP_NONE = -1,
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STEP_C,
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STEP_D,
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STEP_E,
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STEP_F,
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STEP_G,
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STEP_A,
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STEP_B
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};
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#endif
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// a list of tpc's, with legal ranges, not really an enum, so no way to cnvert into a class
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enum Tpc : signed char {
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TPC_INVALID = -2,
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TPC_F_BB, TPC_C_BB, TPC_G_BB, TPC_D_BB, TPC_A_BB, TPC_E_BB, TPC_B_BB,
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TPC_F_B, TPC_C_B, TPC_G_B, TPC_D_B, TPC_A_B, TPC_E_B, TPC_B_B,
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TPC_F, TPC_C, TPC_G, TPC_D, TPC_A, TPC_E, TPC_B,
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TPC_F_S, TPC_C_S, TPC_G_S, TPC_D_S, TPC_A_S, TPC_E_S, TPC_B_S,
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TPC_F_SS, TPC_C_SS, TPC_G_SS, TPC_D_SS, TPC_A_SS, TPC_E_SS, TPC_B_SS,
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TPC_MIN = TPC_F_BB,
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TPC_MAX = TPC_B_SS
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};
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const int TPC_DELTA_SEMITONE = 7; // the delta in tpc value to go 1 semitone up or down
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const int TPC_DELTA_ENHARMONIC = 12; // the delta in tpc value to reach the next (or prev) enharmonic spelling
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//const int TPC_FIRST_STEP = 3; // the step of the first valid tpc (= F = step 3)
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const int PITCH_DELTA_OCTAVE = 12; // the delta in pitch value to go 1 octave up or down
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const int STEP_DELTA_OCTAVE = 7; // the number of steps in an octave
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//const int STEP_DELTA_TPC = 4; // the number of steps in a tpc step (= a fifth = 4 steps)
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//---------------------------------------------------------
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// pitch2tpc
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// Returns a default tpc for a given midi pitch.
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// Midi pitch 60 is middle C.
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//---------------------------------------------------------
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// pitch2tpc(pitch) replaced by pitch2tpc(pitch, Key::C, Prefer::NEAREST)
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enum class Prefer : char { FLATS=8, NEAREST=11, SHARPS=13 };
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enum class NoteSpellingType : char { STANDARD = 0, GERMAN, GERMAN_PURE, SOLFEGGIO, FRENCH };
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enum class NoteCaseType : signed char { AUTO = -1, CAPITAL = 0, LOWER, UPPER };
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extern int pitch2tpc(int pitch, Key, Prefer prefer);
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extern int computeWindow(const std::vector<Note*>& notes, int start, int end);
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extern int tpc(int idx, int pitch, int opt);
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extern QString tpc2name(int tpc, NoteSpellingType spelling, NoteCaseType noteCase, bool explicitAccidental = false);
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extern void tpc2name(int tpc, NoteSpellingType noteSpelling, NoteCaseType noteCase, QString& s, QString& acc, bool explicitAccidental = false);
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extern void tpc2name(int tpc, NoteSpellingType noteSpelling, NoteCaseType noteCase, QString& s, int& acc);
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extern int step2tpc(const QString& stepName, AccidentalVal alter);
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extern int step2tpc(int step);
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extern int step2tpc(int step, AccidentalVal alter);
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extern int step2tpcByKey(int step, Key);
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extern int tpc2pitch(int tpc);
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extern int tpc2step(int tpc);
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extern int tpc2stepByKey(int tpc, Key, int* pAlter);
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extern int tpc2alterByKey(int tpc, Key);
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extern int pitch2absStepByKey(int pitch, int tpc, Key, int* pAlter);
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extern int absStep2pitchByKey(int step, Key);
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extern int tpc2degree(int tpc, Key key);
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extern int tpcInterval(int startTpc, int interval, int alter);
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extern int step2pitchInterval(int step, int alter);
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extern int function2Tpc(const QString& s, Key key);
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//---------------------------------------------------------
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// tpc2alter
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//---------------------------------------------------------
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inline static AccidentalVal tpc2alter(int tpc) {
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return AccidentalVal(((tpc+1) / 7) - 2);
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}
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extern QString tpc2stepName(int tpc);
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extern bool tpcIsValid(int val);
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inline bool pitchIsValid(int pitch) { return pitch >= 0 && pitch <= 127; }
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} // namespace Ms
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#endif
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