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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2015 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 "scoreElement.h"
#include "score.h"
#include "undo.h"
#include "xml.h"
namespace Ms {
//---------------------------------------------------------
// resetProperty
//---------------------------------------------------------
void ScoreElement::resetProperty(P_ID id)
{
QVariant v = propertyDefault(id);
if (v.isValid())
setProperty(id, v);
}
//---------------------------------------------------------
// undoChangeProperty
//---------------------------------------------------------
void ScoreElement::undoChangeProperty(P_ID id, const QVariant& val)
{
score()->undoChangeProperty(this, id, val);
}
//---------------------------------------------------------
// undoPushProperty
//---------------------------------------------------------
void ScoreElement::undoPushProperty(P_ID id)
{
QVariant val = getProperty(id);
score()->undo()->push1(new ChangeProperty(this, id, val));
}
//---------------------------------------------------------
// writeProperty
//---------------------------------------------------------
void ScoreElement::writeProperty(Xml& xml, P_ID id) const
{
xml.tag(id, getProperty(id), propertyDefault(id));
}
//---------------------------------------------------------
// linkTo
//---------------------------------------------------------
void ScoreElement::linkTo(ScoreElement* element)
{
Q_ASSERT(element != this);
if (!_links) {
if (element->links()) {
_links = element->_links;
Q_ASSERT(_links->contains(element));
}
else {
_links = new LinkedElements(score());
_links->append(element);
element->_links = _links;
}
Q_ASSERT(!_links->contains(this));
_links->append(this);
}
else {
_links->append(element);
element->_links = _links;
}
}
//---------------------------------------------------------
// unlink
//---------------------------------------------------------
void ScoreElement::unlink()
{
if (_links) {
Q_ASSERT(_links->contains(this));
_links->removeOne(this);
// if link list is empty, remove list
if (_links->size() <= 1) {
if (!_links->empty()) // abnormal case: only "this" is in list
_links->front()->_links = 0;
delete _links;
}
_links = 0;
}
}
//---------------------------------------------------------
// undoUnlink
//---------------------------------------------------------
void ScoreElement::undoUnlink()
{
if (_links)
_score->undo(new Unlink(this));
}
//---------------------------------------------------------
// linkList
//---------------------------------------------------------
QList<ScoreElement*> ScoreElement::linkList() const
{
QList<ScoreElement*> el;
if (links())
el.append(*links());
else
el.append((Element*)this);
return el;
}
//---------------------------------------------------------
// LinkedElements
//---------------------------------------------------------
LinkedElements::LinkedElements(Score* score)
{
_lid = score->linkId(); // create new unique id
}
LinkedElements::LinkedElements(Score* score, int id)
{
_lid = id;
score->linkId(id); // remember used id
}
//---------------------------------------------------------
// setLid
//---------------------------------------------------------
void LinkedElements::setLid(Score* score, int id)
{
_lid = id;
score->linkId(id);
}
}
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