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//=============================================================================
// 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 __TEMPOTEXT_H__
#define __TEMPOTEXT_H__
#include "durationtype.h"
#include "text.h"
namespace Ms {
//-------------------------------------------------------------------
// @@ TempoText
/// Tempo marker which determines the midi tempo.
//
// @P tempo float tempo in quarter notes (crochets) per second
// @P followText bool determine tempo from text
//-------------------------------------------------------------------
class TempoText final : public TextBase {
qreal _tempo; // beats per second
bool _followText; // parse text to determine tempo
qreal _relative;
bool _isRelative;
void updateScore();
void updateTempo();
virtual void endEdit(EditData&) override;
virtual void undoChangeProperty(Pid id, const QVariant&, PropertyFlags ps) override;
public:
TempoText(Score*);
virtual TempoText* clone() const override { return new TempoText(*this); }
virtual ElementType type() const override { return ElementType::TEMPO_TEXT; }
virtual void write(XmlWriter& xml) const override;
virtual void read(XmlReader&) override;
Segment* segment() const { return toSegment(parent()); }
Measure* measure() const { return toMeasure(parent()->parent()); }
qreal tempo() const { return _tempo; }
void setTempo(qreal v);
void undoSetTempo(qreal v);
bool isRelative() { return _isRelative; }
void setRelative(qreal v) { _isRelative = true; _relative = v; }
bool followText() const { return _followText; }
void setFollowText(bool v) { _followText = v; }
void undoSetFollowText(bool v);
void updateRelative();
virtual void layout();
static int findTempoDuration(const QString& s, int& len, TDuration& dur);
static QString duration2tempoTextString(const TDuration dur);
static QString duration2userName(const TDuration t);
QVariant getProperty(Pid propertyId) const override;
bool setProperty(Pid propertyId, const QVariant&) override;
QVariant propertyDefault(Pid id) const override;
Sid getPropertyStyle(Pid) const override;
virtual QString accessibleInfo() const override;
};
} // namespace Ms
#endif
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