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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2016 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 __SLURTIE_H__
#define __SLURTIE_H__
#include "spanner.h"
#include "mscore.h"
namespace Ms {
//---------------------------------------------------------
// SlurPos
//---------------------------------------------------------
struct SlurPos {
QPointF p1; // start point of slur
System* system1; // start system of slur
QPointF p2; // end point of slur
System* system2; // end system of slur
};
struct SlurOffsets {
QPointF o[4];
};
//---------------------------------------------------------
// UP
//---------------------------------------------------------
struct UP {
QPointF p; // layout position relative to pos()
QPointF off; // user offset in point units
QPointF pos() const { return p + off; }
bool operator!=(const UP& up) const { return p != up.p || off != up.off; }
};
//---------------------------------------------------------
// CubicBezier
// Helper class to optimize cubic Bezier curve points
// calculation.
//---------------------------------------------------------
class CubicBezier {
QPointF p1;
QPointF p2;
QPointF p3;
QPointF p4;
public:
CubicBezier(QPointF _p1, QPointF _p2, QPointF _p3, QPointF _p4)
: p1(_p1), p2(_p2), p3(_p3), p4(_p4) {}
QPointF pointAtPercent(qreal t) const
{
Q_ASSERT(t >= 0.0 && t <= 1.0);
const qreal r = 1.0 - t;
const QPointF B123 = r * (r*p1 + t*p2) + t * (r*p2 + t*p3);
const QPointF B234 = r * (r*p2 + t*p3) + t * (r*p3 + t*p4);
return r*B123 + t*B234;
}
};
class SlurTie;
//---------------------------------------------------------
// SlurTieSegment
//---------------------------------------------------------
class SlurTieSegment : public SpannerSegment {
protected:
struct UP _ups[int(Grip::GRIPS)];
QPainterPath path;
QPainterPath shapePath;
Shape _shape;
virtual void changeAnchor(EditData&, Element*) = 0;
virtual QPointF gripAnchor(Grip grip) const override;
public:
SlurTieSegment(Score*);
SlurTieSegment(const SlurTieSegment&);
virtual void spatiumChanged(qreal, qreal) override;
SlurTie* slurTie() const { return (SlurTie*)spanner(); }
virtual void startEdit(EditData&) override;
virtual void endEdit(EditData&) override;
virtual void startEditDrag(EditData& ed) override;
virtual void endEditDrag(EditData& ed) override;
virtual void editDrag(EditData&) override;
virtual QVariant getProperty(Pid propertyId) const override;
virtual bool setProperty(Pid propertyId, const QVariant&) override;
virtual QVariant propertyDefault(Pid id) const override;
virtual void reset() override;
virtual void undoChangeProperty(Pid id, const QVariant&, PropertyFlags ps) override;
virtual void move(const QPointF& s) override;
virtual bool isEditable() const override { return true; }
void setSlurOffset(Grip i, const QPointF& val) { _ups[int(i)].off = val; }
const struct UP& ups(Grip i) const { return _ups[int(i)]; }
struct UP& ups(Grip i) { return _ups[int(i)]; }
virtual Shape shape() const override { return _shape; }
void writeSlur(XmlWriter& xml, int no) const;
void read(XmlReader&);
virtual void drawEditMode(QPainter*, EditData&) override;
virtual void computeBezier(QPointF so = QPointF()) = 0;
};
//-------------------------------------------------------------------
// @@ SlurTie
// @P lineType int (0 - solid, 1 - dotted, 2 - dashed, 3 - wide dashed)
// @P slurDirection enum (Direction.AUTO, Direction.DOWN, Direction.UP)
//-------------------------------------------------------------------
class SlurTie : public Spanner {
int _lineType; // 0 = solid, 1 = dotted, 2 = dashed, 3 = wide dashed
protected:
bool _up; // actual direction
Direction _slurDirection;
qreal firstNoteRestSegmentX(System* system);
void fixupSegments(unsigned nsegs);
public:
SlurTie(Score*);
SlurTie(const SlurTie&);
~SlurTie();
virtual ElementType type() const = 0;
bool up() const { return _up; }
virtual void reset() override;
Direction slurDirection() const { return _slurDirection; }
void setSlurDirection(Direction d) { _slurDirection = d; }
void undoSetSlurDirection(Direction d);
virtual void layout2(const QPointF, int, struct UP&) {}
virtual bool contains(const QPointF&) const { return false; } // not selectable
virtual void read(XmlReader&) override;
void writeProperties(XmlWriter& xml) const;
bool readProperties(XmlReader&);
int lineType() const { return _lineType; }
void setLineType(int val) { _lineType = val; }
void undoSetLineType(int);
virtual void slurPos(SlurPos*) = 0;
virtual SlurTieSegment* newSlurTieSegment() = 0;
virtual QVariant getProperty(Pid propertyId) const override;
virtual bool setProperty(Pid propertyId, const QVariant&) override;
virtual QVariant propertyDefault(Pid id) const override;
};
}
#endif
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