145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
//=============================================================================
|
|
// MuseScore
|
|
// Music Composition & Notation
|
|
//
|
|
// Copyright (C) 2002-2014 Werner Schweer
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License version 2
|
|
// as published by the Free Software Foundation and appearing in
|
|
// the file LICENCE.GPL
|
|
//=============================================================================
|
|
|
|
#ifndef __KEY__H__
|
|
#define __KEY__H__
|
|
|
|
namespace Ms {
|
|
|
|
class XmlWriter;
|
|
class Score;
|
|
class XmlReader;
|
|
enum class AccidentalVal : signed char;
|
|
enum class ClefType : signed char;
|
|
|
|
//---------------------------------------------------------
|
|
// Key
|
|
//---------------------------------------------------------
|
|
|
|
enum class Key {
|
|
C_B = -7,
|
|
G_B,
|
|
D_B,
|
|
A_B,
|
|
E_B,
|
|
B_B,
|
|
F,
|
|
C, // == 0
|
|
G,
|
|
D,
|
|
A,
|
|
E,
|
|
B,
|
|
F_S,
|
|
C_S,
|
|
MIN = Key::C_B,
|
|
MAX = Key::C_S,
|
|
INVALID = Key::MIN - 1,
|
|
NUM_OF = Key::MAX - Key::MIN + 1,
|
|
DELTA_ENHARMONIC = 12
|
|
};
|
|
|
|
//---------------------------------------------------------
|
|
// KeyMode
|
|
//---------------------------------------------------------
|
|
|
|
enum class KeyMode {
|
|
UNKNOWN = -1,
|
|
NONE,
|
|
MAJOR,
|
|
MINOR
|
|
};
|
|
|
|
static inline bool operator< (Key a, Key b) { return int(a) < int(b); }
|
|
static inline bool operator> (Key a, Key b) { return int(a) > int(b); }
|
|
static inline bool operator> (Key a, int b) { return int(a) > b; }
|
|
static inline bool operator< (Key a, int b) { return int(a) < b; }
|
|
static inline bool operator== (Key a, Key b) { return int(a) == int(b); }
|
|
static inline bool operator!= (Key a, Key b) { return int(a) != int(b); }
|
|
static inline Key operator+= (Key& a, const Key& b) { return a = Key(int(a) + int(b)); }
|
|
static inline Key operator-= (Key& a, const Key& b) { return a = Key(int(a) - int(b)); }
|
|
|
|
enum class SymId;
|
|
|
|
//---------------------------------------------------------
|
|
// KeySym
|
|
// position of one symbol in KeySig
|
|
//---------------------------------------------------------
|
|
|
|
struct KeySym {
|
|
SymId sym;
|
|
QPointF spos; // position in spatium units
|
|
QPointF pos; // actual pixel position on screen (set by layout)
|
|
};
|
|
|
|
//---------------------------------------------------------
|
|
// KeySigEvent
|
|
//---------------------------------------------------------
|
|
|
|
class KeySigEvent {
|
|
Key _key { Key::INVALID }; // -7 -> +7
|
|
KeyMode _mode { KeyMode::UNKNOWN };
|
|
bool _custom { false };
|
|
QList<KeySym> _keySymbols;
|
|
|
|
void enforceLimits();
|
|
|
|
public:
|
|
KeySigEvent() {}
|
|
KeySigEvent(const KeySigEvent&);
|
|
|
|
bool operator==(const KeySigEvent& e) const;
|
|
|
|
void setKey(Key v);
|
|
void print() const;
|
|
|
|
Key key() const { return _key; }
|
|
KeyMode mode() const { return _mode; }
|
|
void setMode(KeyMode m) { _mode = m; }
|
|
bool custom() const { return _custom; }
|
|
void setCustom(bool val) { _custom = val; _key = Key::C; }
|
|
bool isValid() const { return _key != Key::INVALID; }
|
|
bool isAtonal() const { return _mode == KeyMode::NONE; }
|
|
void initFromSubtype(int); // for backward compatibility
|
|
QList<KeySym>& keySymbols() { return _keySymbols; }
|
|
const QList<KeySym>& keySymbols() const { return _keySymbols; }
|
|
};
|
|
|
|
//---------------------------------------------------------
|
|
// AccidentalState
|
|
/// Contains a state for every absolute staff line.
|
|
//---------------------------------------------------------
|
|
|
|
static const int TIE_CONTEXT = 0x10;
|
|
static const int MIN_ACC_STATE = 0;
|
|
static const int MAX_ACC_STATE = 75;
|
|
|
|
class AccidentalState {
|
|
uchar state[MAX_ACC_STATE]; // (0 -- 4) | TIE_CONTEXT
|
|
|
|
public:
|
|
AccidentalState() {}
|
|
void init(Key key);
|
|
void init(const KeySigEvent&, ClefType);
|
|
AccidentalVal accidentalVal(int line, bool &error) const;
|
|
AccidentalVal accidentalVal(int line) const;
|
|
bool tieContext(int line) const;
|
|
void setAccidentalVal(int line, AccidentalVal val, bool tieContext = false);
|
|
};
|
|
|
|
struct Interval;
|
|
extern Key transposeKey(Key oldKey, const Interval&);
|
|
|
|
|
|
} // namespace Ms
|
|
#endif
|
|
|