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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2018 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 __POINT_H__
#define __POINT_H__
#include "fraction.h"
#include <climits>
namespace Ms {
class Element;
class XmlReader;
class XmlWriter;
enum class Pid;
//---------------------------------------------------------
// Location
//---------------------------------------------------------
class Location {
int _staff;
int _voice;
int _measure;
Fraction _frac;
int _graceIndex;
int _note;
bool _rel;
static int track(const Element* e);
static int measure(const Element* e);
static int graceIndex(const Element* e);
static int note(const Element* e);
public:
constexpr Location(int staff, int voice, int measure, Fraction frac, int graceIndex, int note, bool rel)
: _staff(staff), _voice(voice), _measure(measure), _frac(frac), _graceIndex(graceIndex), _note(note), _rel(rel) {}
static constexpr Location absolute() { return Location(INT_MIN, INT_MIN, INT_MIN, Fraction(INT_MIN,1), INT_MIN, INT_MIN, false); }
static constexpr Location relative() { return Location(0, 0, 0, Fraction(0, 1), INT_MIN, 0, true); }
void toAbsolute(const Location& ref);
void toRelative(const Location& ref);
void write(XmlWriter& xml) const;
void read(XmlReader& e);
bool isAbsolute() const { return !_rel; }
bool isRelative() const { return _rel; }
int staff() const { return _staff; }
void setStaff(int staff) { _staff = staff; }
int voice() const { return _voice; }
void setVoice(int voice) { _voice = voice; }
int track() const;
void setTrack(int track);
int measure() const { return _measure; }
void setMeasure(int measure) { _measure = measure; }
Fraction frac() const { return _frac; }
void setFrac(Fraction frac) { _frac = frac; }
int graceIndex() const { return _graceIndex; }
void setGraceIndex(int index) { _graceIndex = index; }
int note() const { return _note; }
void setNote(int note) { _note = note; }
void fillForElement(const Element* e, bool absfrac = true);
void fillPositionForElement(const Element* e, bool absfrac = true);
static Location forElement(const Element* e, bool absfrac = true);
static Location positionForElement(const Element* e, bool absfrac = true);
static QVariant getLocationProperty(Pid pid, const Element* start, const Element* end);
bool operator==(const Location& other) const;
bool operator!=(const Location& other) const { return !(*this == other); }
};
} // namespace Ms
#endif
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