MuseScore/libmscore/keysig.h
2016-04-13 11:10:17 +02:00

91 lines
3.3 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2002-2011 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 __KEYSIG_H__
#define __KEYSIG_H__
#include "key.h"
#include "element.h"
class QPainter;
namespace Ms {
class Sym;
class Segment;
//---------------------------------------------------------------------------------------
// @@ KeySig
/// The KeySig class represents a Key Signature on a staff
//
// @P showCourtesy bool show courtesy key signature for this sig if appropriate
//---------------------------------------------------------------------------------------
class KeySig : public Element {
Q_OBJECT
Q_PROPERTY(bool showCourtesy READ showCourtesy WRITE undoSetShowCourtesy)
bool _showCourtesy;
bool _hideNaturals; // used in layout to override score style (needed for the Continuous panel)
KeySigEvent _sig;
void addLayout(SymId sym, qreal x, int y);
public:
KeySig(Score* = 0);
KeySig(const KeySig&);
virtual KeySig* clone() const override { return new KeySig(*this); }
virtual void draw(QPainter*) const override;
virtual Element::Type type() const override { return Element::Type::KEYSIG; }
virtual bool acceptDrop(const DropData&) const override;
virtual Element* drop(const DropData&) override;
virtual void layout() override;
virtual qreal mag() const override;
//@ sets the key of the key signature
Q_INVOKABLE void setKey(Key);
Segment* segment() const { return (Segment*)parent(); }
Measure* measure() const { return parent() ? (Measure*)parent()->parent() : nullptr; }
virtual void write(Xml&) const override;
virtual void read(XmlReader&) override;
//@ returns the key of the key signature (from -7 (flats) to +7 (sharps) )
Q_INVOKABLE Key key() const { return _sig.key(); }
bool isCustom() const { return _sig.custom(); }
bool isAtonal() const { return _sig.isAtonal(); }
KeySigEvent keySigEvent() const { return _sig; }
bool operator==(const KeySig&) const;
void changeKeySigEvent(const KeySigEvent&);
void setKeySigEvent(const KeySigEvent& e) { _sig = e; }
int tick() const;
bool showCourtesy() const { return _showCourtesy; }
void setShowCourtesy(bool v) { _showCourtesy = v; }
void undoSetShowCourtesy(bool v);
void setHideNaturals(bool hide) { _hideNaturals = hide; }
QVariant getProperty(P_ID propertyId) const;
bool setProperty(P_ID propertyId, const QVariant&);
QVariant propertyDefault(P_ID id) const;
virtual Element* nextElement() override;
virtual Element* prevElement() override;
virtual QString accessibleInfo() const override;
SymId convertFromOldId(int val) const;
};
extern const char* keyNames[];
} // namespace Ms
#endif