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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 __SYSTEM_H__
#define __SYSTEM_H__
/**
\file
Definition of classes SysStaff and System
*/
#include "element.h"
#include "spatium.h"
namespace Ms {
class Staff;
class StaffLines;
class Clef;
class Page;
class Bracket;
class Lyrics;
class Segment;
class MeasureBase;
class Text;
class InstrumentName;
class SpannerSegment;
class VBox;
class BarLine;
//---------------------------------------------------------
// SysStaff
/// One staff of a System.
//---------------------------------------------------------
class SysStaff {
QRectF _bbox; ///< Bbox of StaffLines.
qreal _yOff; ///< offset of top staff line within bbox
qreal _distanceUp; ///< distance to previous staff
qreal _distanceDown; ///< distance to next staff
bool _show; ///< derived from Staff or false if empty
///< staff is hidden
public:
int idx;
QList<InstrumentName*> instrumentNames;
const QRectF& bbox() const { return _bbox; }
QRectF& bbox() { return _bbox; }
QRectF& rbb() { return _bbox; }
qreal right() const { return _bbox.right(); }
void setbbox(const QRectF& r) { _bbox = r; }
qreal y() const;
void setYOff(qreal offset);
qreal distanceUp() const { return _distanceUp; }
void setDistanceUp(qreal v) { _distanceUp = v; }
qreal distanceDown() const { return _distanceDown; }
void setDistanceDown(qreal v) { _distanceDown = v; }
bool show() const { return _show; }
void setShow(bool v) { _show = v; }
SysStaff();
~SysStaff();
};
//---------------------------------------------------------
// @@ System
/// One row of measures for all instruments;
/// a complete piece of the timeline.
//---------------------------------------------------------
class System : public Element {
Q_OBJECT
QList<MeasureBase*> ml;
QList<SysStaff*> _staves;
QList<Bracket*> _brackets;
QList<SpannerSegment*> _spannerSegments;
BarLine* _barLine; ///< Left hand bar, connects staves in system.
qreal _leftMargin; ///< left margin for instrument name, brackets etc.
qreal _stretchDistance;
qreal _distance;
bool _pageBreak;
bool _firstSystem; ///< used to decide between long and short instrument
///< names; set by score()->doLayout()
bool _vbox; ///< contains only one VBox in ml
bool _sameLine;
bool _addStretch;
void setDistanceUp(int n, qreal v) { _staves[n]->setDistanceUp(v); }
void setDistanceDown(int n, qreal v) { _staves[n]->setDistanceDown(v); }
public:
System(Score*);
~System();
virtual System* clone() const { return new System(*this); }
virtual Element::Type type() const { return Element::Type::SYSTEM; }
virtual void add(Element*);
virtual void remove(Element*);
virtual void change(Element* o, Element* n);
virtual void write(Xml&) const;
virtual void read(XmlReader&);
virtual void scanElements(void* data, void (*func)(void*, Element*), bool all=true);
Page* page() const { return (Page*)parent(); }
virtual void layoutSystem(qreal xoffset);
void layout2(); ///< Called after Measure layout.
void clear(); ///< Clear measure list.
QRectF bboxStaff(int staff) const { return _staves[staff]->bbox(); }
QList<SysStaff*>* staves() { return &_staves; }
const QList<SysStaff*>* staves() const { return &_staves; }
qreal staffYpage(int staffIdx) const;
qreal staffCanvasYpage(int staffIdx) const;
#ifdef NDEBUG
SysStaff* staff(int staffIdx) const { return _staves[staffIdx]; }
#else
SysStaff* staff(int staffIdx) const {
if (staffIdx >= _staves.size()) {
qDebug("System::staff(): bad index %d", staffIdx);
staffIdx = _staves.size() - 1;
// abort();
}
return _staves[staffIdx];
}
#endif
qreal distanceUp(int idx) const { return _staves[idx]->distanceUp(); }
qreal distanceDown(int idx) const { return _staves[idx]->distanceDown(); }
bool pageBreak() const { return _pageBreak; }
void setPageBreak(bool val) { _pageBreak = val; }
SysStaff* insertStaff(int);
void removeStaff(int);
BarLine* barLine() const { return _barLine; }
int y2staff(qreal y) const;
void setInstrumentNames(bool longName);
int snap(int tick, const QPointF p) const;
int snapNote(int tick, const QPointF p, int staff) const;
QList<MeasureBase*>& measures() { return ml; }
MeasureBase* measure(int idx) { return ml[idx]; }
Measure* firstMeasure() const;
Measure* lastMeasure() const;
MeasureBase* prevMeasure(const MeasureBase*) const;
MeasureBase* nextMeasure(const MeasureBase*) const;
qreal leftMargin() const { return _leftMargin; }
void setFirstSystem(bool v) { _firstSystem = v; }
bool isVbox() const { return _vbox; }
VBox* vbox() const { return (VBox*)ml[0]; }
void setVbox(bool v) { _vbox = v; }
// void layoutLyrics(Lyrics*, Segment*, int staffIdx);
bool addStretch() const { return _addStretch; }
void setAddStretch(bool v) { _addStretch = v; }
bool sameLine() const { return _sameLine; }
void setSameLine(bool v) { _sameLine = v; }
qreal stretchDistance() const { return _stretchDistance; }
void setStretchDistance(qreal val) { _stretchDistance = val; }
void addStretchDistance(qreal val) { _stretchDistance += val; }
qreal distance() const { return _distance; }
void setDistance(qreal val) { _distance = val; }
QList<Bracket*>& brackets() { return _brackets; }
QList<SpannerSegment*>& spannerSegments() { return _spannerSegments; }
const QList<SpannerSegment*>& spannerSegments() const { return _spannerSegments; }
virtual Element* nextElement() override;
virtual Element* prevElement() override;
};
typedef QList<System*>::iterator iSystem;
typedef QList<System*>::const_iterator ciSystem;
} // namespace Ms
#endif
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