keysignature.h

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#ifndef KEYSIGNATURE_H_
#define KEYSIGNATURE_H_

#include <QString>

#include "core/muselement.h"
#include "core/diatonickey.h"
#include "core/staff.h"

class CAContext;

class CAKeySignature : public CAMusElement {
public:
        enum CAKeySignatureType {
                MajorMinor, // Marks the standard 7-level Major/Minor
                Modus,
                Custom
        };

        enum CAModus {
                Ionian,
                Dorian,
                Phrygian,
                Lydian,
                Mixolydian,
                Aeolian,
                Locrian,
                Hypodorian,
                Hypolydian,
                Hypomixolydian,
                Hypophrygian
        };

        CAKeySignature(CADiatonicKey k, CAStaff *staff, int timeStart);
        CAKeySignature(CAModus m, CAStaff *staff, int timeStart);
        ~CAKeySignature();
        CAKeySignature *clone(CAContext* context=0);
        CAStaff *staff() { return static_cast<CAStaff*>(context()); }

        inline CAKeySignatureType keySignatureType() { return _keySignatureType; }
        inline void setKeySignatureType(CAKeySignatureType type) { _keySignatureType = type; }

        CADiatonicKey diatonicKey() { return _diatonicKey; }
        CAModus modus() { return _modus; }

        void setDiatonicKey(CADiatonicKey k) { _diatonicKey = k; updateAccidentals(); }
        void setModus(CAModus modus) { _modus = modus; }

        signed char *accidentals() { return _accidentals; }

        int compare(CAMusElement* elt);

        static const QString keySignatureTypeToString(CAKeySignatureType);
        static CAKeySignatureType keySignatureTypeFromString(const QString);
        static const QString modusToString(CAModus);
        static CAModus modusFromString(const QString);

private:
        void updateAccidentals();

        CAKeySignatureType _keySignatureType;
        CAModus _modus;
        CADiatonicKey _diatonicKey;

        signed char _accidentals[7];    // Accidentals configuration for each level
};
#endif /* KEYSIGNATURE_H_ */