155 lines
4.3 KiB
C++
155 lines
4.3 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2015 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#include "scoreElement.h"
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#include "score.h"
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#include "undo.h"
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#include "xml.h"
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namespace Ms {
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//---------------------------------------------------------
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// resetProperty
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//---------------------------------------------------------
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void ScoreElement::resetProperty(P_ID id)
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{
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QVariant v = propertyDefault(id);
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if (v.isValid())
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setProperty(id, v);
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}
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//---------------------------------------------------------
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// undoChangeProperty
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//---------------------------------------------------------
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void ScoreElement::undoChangeProperty(P_ID id, const QVariant& val)
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{
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score()->undoChangeProperty(this, id, val);
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}
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//---------------------------------------------------------
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// undoPushProperty
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//---------------------------------------------------------
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void ScoreElement::undoPushProperty(P_ID id)
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{
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QVariant val = getProperty(id);
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score()->undo()->push1(new ChangeProperty(this, id, val));
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}
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//---------------------------------------------------------
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// writeProperty
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//---------------------------------------------------------
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void ScoreElement::writeProperty(Xml& xml, P_ID id) const
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{
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xml.tag(id, getProperty(id), propertyDefault(id));
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}
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//---------------------------------------------------------
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// linkTo
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//---------------------------------------------------------
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void ScoreElement::linkTo(ScoreElement* element)
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{
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Q_ASSERT(element != this);
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if (!_links) {
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if (element->links()) {
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_links = element->_links;
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Q_ASSERT(_links->contains(element));
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}
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else {
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_links = new LinkedElements(score());
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_links->append(element);
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element->_links = _links;
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}
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Q_ASSERT(!_links->contains(this));
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_links->append(this);
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}
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else {
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_links->append(element);
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element->_links = _links;
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}
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}
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//---------------------------------------------------------
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// unlink
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//---------------------------------------------------------
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void ScoreElement::unlink()
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{
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if (_links) {
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Q_ASSERT(_links->contains(this));
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_links->removeOne(this);
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// if link list is empty, remove list
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if (_links->size() <= 1) {
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if (!_links->empty()) // abnormal case: only "this" is in list
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_links->front()->_links = 0;
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delete _links;
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}
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_links = 0;
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}
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}
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//---------------------------------------------------------
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// undoUnlink
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//---------------------------------------------------------
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void ScoreElement::undoUnlink()
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{
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if (_links)
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_score->undo(new Unlink(this));
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}
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//---------------------------------------------------------
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// linkList
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//---------------------------------------------------------
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QList<ScoreElement*> ScoreElement::linkList() const
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{
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QList<ScoreElement*> el;
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if (links())
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el.append(*links());
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else
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el.append((Element*)this);
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return el;
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}
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//---------------------------------------------------------
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// LinkedElements
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//---------------------------------------------------------
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LinkedElements::LinkedElements(Score* score)
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{
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_lid = score->linkId(); // create new unique id
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}
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LinkedElements::LinkedElements(Score* score, int id)
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{
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_lid = id;
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score->linkId(id); // remember used id
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}
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//---------------------------------------------------------
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// setLid
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//---------------------------------------------------------
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void LinkedElements::setLid(Score* score, int id)
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{
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_lid = id;
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score->linkId(id);
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}
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}
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