78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2010-2011 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 __STEM_H__
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#define __STEM_H__
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#include "element.h"
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class QPainter;
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namespace Ms {
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class Chord;
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//---------------------------------------------------------
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// @@ Stem
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/// Graphic representation of a note stem.
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//---------------------------------------------------------
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class Stem : public Element {
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Q_OBJECT
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QLineF line; // p1 is attached to note head
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qreal _userLen;
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qreal _len; // allways positive
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virtual void startEdit(MuseScoreView*, const QPointF&);
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public:
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Stem(Score*);
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Stem &operator=(const Stem&) = delete;
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virtual Stem* clone() const { return new Stem(*this); }
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virtual Element::Type type() const { return Element::Type::STEM; }
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virtual void draw(QPainter*) const;
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virtual bool isEditable() const { return true; }
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virtual void layout();
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virtual void spatiumChanged(qreal /*oldValue*/, qreal /*newValue*/);
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virtual void editDrag(const EditData&);
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virtual void updateGrips(int*, int*, QRectF*) const;
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virtual void write(Xml& xml) const;
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virtual void read(XmlReader& e);
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virtual void reset();
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virtual bool acceptDrop(const DropData&) const override;
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virtual Element* drop(const DropData&);
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virtual QVariant getProperty(P_ID propertyId) const;
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virtual bool setProperty(P_ID propertyId, const QVariant&);
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Chord* chord() const { return (Chord*)parent(); }
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bool up() const;
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qreal userLen() const { return _userLen; }
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void setUserLen(qreal l) { _userLen = l; }
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qreal lineWidth() const;
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QPointF hookPos() const;
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void setLen(qreal l);
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qreal len() const { return _len; }
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qreal stemLen() const;
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QPointF p2() const { return line.p2(); }
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};
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} // namespace Ms
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#endif
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