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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 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 "spacer.h"
#include "score.h"
#include "mscore.h"
#include "xml.h"
namespace Ms {
//---------------------------------------------------------
// LayoutBreak
//---------------------------------------------------------
Spacer::Spacer(Score* score)
: Element(score)
{
_spacerType = SpacerType::UP;
_gap = 0.0;
}
Spacer::Spacer(const Spacer& s)
: Element(s)
{
_gap = s._gap;
path = s.path;
_spacerType = s._spacerType;
}
//---------------------------------------------------------
// draw
//---------------------------------------------------------
void Spacer::draw(QPainter* painter) const
{
if (score()->printing() || !score()->showUnprintable())
return;
QPen pen(selected() ? MScore::selectColor[0] : MScore::layoutBreakColor,
spatium() * 0.3);
painter->setPen(pen);
painter->setBrush(Qt::NoBrush);
painter->drawPath(path);
}
//---------------------------------------------------------
// layout0
//---------------------------------------------------------
void Spacer::layout0()
{
qreal _spatium = spatium();
path = QPainterPath();
qreal w = _spatium;
qreal b = w * .5;
qreal h = parent() ? _gap : qMin(_gap, spatium() * 4.0); // limit length for palette
switch (spacerType()) {
case SpacerType::DOWN:
path.lineTo(w, 0.0);
path.moveTo(b, 0.0);
path.lineTo(b, h);
path.lineTo(0.0, h-b);
path.moveTo(b, h);
path.lineTo(w, h-b);
break;
case SpacerType::UP:
path.moveTo(b, 0.0);
path.lineTo(0.0, b);
path.moveTo(b, 0.0);
path.lineTo(w, b);
path.moveTo(b, 0.0);
path.lineTo(b, h);
path.moveTo(0.0, h);
path.lineTo(w, h);
break;
case SpacerType::FIXED:
path.lineTo(w, 0.0);
path.moveTo(b, 0.0);
path.lineTo(b, h);
path.moveTo(0.0, h);
path.lineTo(w, h);
break;
}
qreal lw = _spatium * 0.4;
QRectF bb(0, 0, w, h);
bb.adjust(-lw, -lw, lw, lw);
setbbox(bb);
}
//---------------------------------------------------------
// setGap
//---------------------------------------------------------
void Spacer::setGap(qreal sp)
{
_gap = sp;
layout0();
}
//---------------------------------------------------------
// spatiumChanged
//---------------------------------------------------------
void Spacer::spatiumChanged(qreal ov, qreal nv)
{
_gap = (_gap / ov) * nv;
layout0();
}
//---------------------------------------------------------
// startEdit
//---------------------------------------------------------
void Spacer::startEdit(EditData& ed)
{
Element::startEdit(ed);
ed.grips = 1;
ed.curGrip = Grip::START;
}
//---------------------------------------------------------
// startEditDrag
//---------------------------------------------------------
void Spacer::startEditDrag(EditData& ed)
{
ElementEditData* eed = ed.getData(this);
eed->pushProperty(Pid::SPACE);
}
//---------------------------------------------------------
// editDrag
//---------------------------------------------------------
void Spacer::editDrag(EditData& ed)
{
qreal s = ed.delta.y();
switch (spacerType()) {
case SpacerType::DOWN:
case SpacerType::FIXED:
_gap += s;
break;
case SpacerType::UP:
_gap -= s;
break;
}
if (_gap < spatium() * 2.0)
_gap = spatium() * 2;
layout0();
score()->setLayoutAll();
}
//---------------------------------------------------------
// updateGrips
//---------------------------------------------------------
void Spacer::updateGrips(EditData& ed) const
{
qreal _spatium = spatium();
QPointF p;
switch (spacerType()) {
case SpacerType::DOWN:
case SpacerType::FIXED:
p = QPointF(_spatium * .5, _gap);
break;
case SpacerType::UP:
p = QPointF(_spatium * .5, 0.0);
break;
}
ed.grip[0].translate(pagePos() + p);
}
//---------------------------------------------------------
// write
//---------------------------------------------------------
void Spacer::write(XmlWriter& xml) const
{
xml.stag(this);
xml.tag("subtype", int(_spacerType));
Element::writeProperties(xml);
xml.tag("space", _gap / spatium());
xml.etag();
}
//---------------------------------------------------------
// read
//---------------------------------------------------------
void Spacer::read(XmlReader& e)
{
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "subtype")
_spacerType = SpacerType(e.readInt());
else if (tag == "space")
_gap = e.readDouble() * spatium();
else if (!Element::readProperties(e))
e.unknown();
}
layout0();
}
//---------------------------------------------------------
// getProperty
//---------------------------------------------------------
QVariant Spacer::getProperty(Pid propertyId) const
{
switch (propertyId) {
case Pid::SPACE:
return gap();
default:
return Element::getProperty(propertyId);
}
}
//---------------------------------------------------------
// setProperty
//---------------------------------------------------------
bool Spacer::setProperty(Pid propertyId, const QVariant& v)
{
switch (propertyId) {
case Pid::SPACE:
setGap(v.toDouble());
break;
default:
if (!Element::setProperty(propertyId, v))
return false;
break;
}
layout0();
score()->setLayoutAll();
setGenerated(false);
return true;
}
//---------------------------------------------------------
// propertyDefault
//---------------------------------------------------------
QVariant Spacer::propertyDefault(Pid id) const
{
switch (id) {
case Pid::SPACE:
return QVariant(0.0);
default:
return Element::propertyDefault(id);
}
}
}
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