63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2013 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 __LEDGERLINE_H__
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#define __LEDGERLINE_H__
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#include "element.h"
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namespace Ms {
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class Chord;
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//---------------------------------------------------------
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// @@ LedgerLine
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/// Graphic representation of a ledger line.
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//!
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//! parent: Chord
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//! x-origin: Chord
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//! y-origin: SStaff
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//---------------------------------------------------------
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class LedgerLine final : public Element
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{
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qreal _width;
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qreal _len;
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LedgerLine* _next;
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bool vertical { false };
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public:
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LedgerLine(Score*);
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LedgerLine& operator=(const LedgerLine&) = delete;
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LedgerLine* clone() const override { return new LedgerLine(*this); }
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ElementType type() const override { return ElementType::LEDGER_LINE; }
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QPointF pagePos() const override; ///< position in page coordinates
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Chord* chord() const { return toChord(parent()); }
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qreal len() const { return _len; }
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qreal lineWidth() const { return _width; }
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void setLen(qreal v) { _len = v; }
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void setLineWidth(qreal v) { _width = v; }
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void layout() override;
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void draw(QPainter*) const override;
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qreal measureXPos() const;
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LedgerLine* next() const { return _next; }
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void setNext(LedgerLine* l) { _next = l; }
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void writeProperties(XmlWriter& xml) const override;
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bool readProperties(XmlReader&) override;
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void spatiumChanged(qreal /*oldValue*/, qreal /*newValue*/) override;
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};
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} // namespace Ms
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#endif
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