MuseScore/libmscore/duration.cpp
2014-04-09 16:09:21 +02:00

138 lines
4 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2008-2011 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
//=============================================================================
#include "duration.h"
#include "tuplet.h"
#include "score.h"
#include "undo.h"
#include "staff.h"
#include "xml.h"
namespace Ms {
//---------------------------------------------------------
// DurationElement
//---------------------------------------------------------
DurationElement::DurationElement(Score* s)
: Element(s)
{
_tuplet = 0;
}
//---------------------------------------------------------
// DurationElement
//---------------------------------------------------------
DurationElement::DurationElement(const DurationElement& e)
: Element(e)
{
_tuplet = e._tuplet;
_duration = e._duration;
}
//---------------------------------------------------------
// DurationElement
//---------------------------------------------------------
DurationElement::~DurationElement()
{
if (tuplet() && tuplet()->elements().front() == this)
delete tuplet();
}
//---------------------------------------------------------
// globalDuration
//---------------------------------------------------------
Fraction DurationElement::globalDuration() const
{
Fraction f(_duration);
for (Tuplet* t = tuplet(); t; t = t->tuplet())
f /= t->ratio();
return f;
}
//---------------------------------------------------------
// actualTicks
//---------------------------------------------------------
int DurationElement::actualTicks() const
{
return Fraction(staff()->timeStretch(tick()) * globalDuration()).ticks();
}
Fraction DurationElement::actualFraction() const
{
return Fraction(staff()->timeStretch(tick()) * globalDuration());
}
//---------------------------------------------------------
// readProperties
//---------------------------------------------------------
bool DurationElement::readProperties(XmlReader& e)
{
if (e.name() == "Tuplet") {
// setTuplet(0);
int i = e.readInt();
Tuplet* t = e.findTuplet(i);
if (t) {
setTuplet(t);
if (!score()->undo()->active()) { // HACK, also added in Undo::AddElement()
t->add(this);
}
}
else {
qDebug("DurationElement:read(): Tuplet id %d not found", i);
Tuplet* t = score()->searchTuplet(e, i);
if (t) {
qDebug(" ...found outside measure, input file corrupted?");
setTuplet(t);
if (!score()->undo()->active()) // HACK
t->add(this);
e.addTuplet(t);
}
}
return true;
}
if (Element::readProperties(e))
return true;
return false;
}
//---------------------------------------------------------
// writeProperties
//---------------------------------------------------------
void DurationElement::writeProperties(Xml& xml) const
{
Element::writeProperties(xml);
if (tuplet())
xml.tag("Tuplet", tuplet()->id());
}
//---------------------------------------------------------
// writeTuplet
//---------------------------------------------------------
void DurationElement::writeTuplet(Xml& xml)
{
if (tuplet() && tuplet()->elements().front() == this) {
tuplet()->writeTuplet(xml); // recursion
tuplet()->setId(xml.tupletId++);
tuplet()->write(xml);
}
}
}