MuseScore/libmscore/measurebase.h

106 lines
3.7 KiB
C++

//=============================================================================
// 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 __MEASUREBASE_H__
#define __MEASUREBASE_H__
/**
\file
Definition of MeasureBase class.
*/
#include "element.h"
class Score;
class System;
class Measure;
class LayoutBreak;
//---------------------------------------------------------
// @@ MeasureBase
/// Virtual base class for Measure, HBox and VBox
//---------------------------------------------------------
class MeasureBase : public Element {
Q_OBJECT
MeasureBase* _next;
MeasureBase* _prev;
int _tick;
protected:
ElementList _el; ///< Measure(/tick) relative -elements: with defined start time
///< but outside the staff
bool _breakHint;
bool _lineBreak; ///< Forced line break
bool _pageBreak; ///< Forced page break
LayoutBreak* _sectionBreak;
public:
MeasureBase(Score* score = 0);
~MeasureBase();
MeasureBase(const MeasureBase&);
virtual MeasureBase* clone() const = 0;
virtual void setScore(Score* s);
MeasureBase* next() const { return _next; }
void setNext(MeasureBase* e) { _next = e; }
MeasureBase* prev() const { return _prev; }
void setPrev(MeasureBase* e) { _prev = e; }
Q_INVOKABLE Measure* nextMeasure() const;
Q_INVOKABLE Measure* prevMeasure() const;
virtual int ticks() const { return 0; }
virtual void write(Xml&, int, bool) const = 0;
void layout0();
virtual void layout();
virtual void scanElements(void* data, void (*func)(void*, Element*), bool all=true);
ElementList* el() { return &_el; }
const ElementList* el() const { return &_el; }
System* system() const { return (System*)parent(); }
void setSystem(System* s) { setParent((Element*)s); }
bool breakHint() const { return _breakHint; }
void setBreakHint(bool val) { _breakHint = val; }
bool lineBreak() const { return _lineBreak; }
bool pageBreak() const { return _pageBreak; }
LayoutBreak* sectionBreak() const { return _sectionBreak; }
void setLineBreak(bool v) { _lineBreak = v; }
void setPageBreak(bool v) { _pageBreak = v; }
void setSectionBreak(LayoutBreak* v) { _sectionBreak = v; }
virtual void moveTicks(int diff) { setTick(tick() + diff); }
virtual qreal distanceUp(int) const { return 0.0; }
virtual qreal distanceDown(int) const { return 0.0; }
virtual qreal userDistanceUp(int) const { return .0; }
virtual qreal userDistanceDown(int) const { return .0; }
virtual void add(Element*);
virtual void remove(Element*);
int tick() const { return _tick; }
int endTick() const { return tick() + ticks(); }
void setTick(int t) { _tick = t; }
qreal pause() const;
virtual QVariant getProperty(P_ID propertyId) const;
virtual bool setProperty(P_ID propertyId, const QVariant&);
};
#endif