|
|
#include "areachartitem_p.h"
|
|
|
#include "qareaseries.h"
|
|
|
#include "qlineseries.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include <QPainter>
|
|
|
#include <QGraphicsSceneMouseEvent>
|
|
|
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
//TODO: optimize : remove points which are not visible
|
|
|
|
|
|
AreaChartItem::AreaChartItem(QAreaSeries* areaSeries,ChartPresenter *presenter):Chart(presenter),QGraphicsItem(presenter->rootItem()),
|
|
|
m_series(areaSeries),
|
|
|
m_upper(0),
|
|
|
m_lower(0),
|
|
|
m_pointsVisible(false)
|
|
|
{
|
|
|
setZValue(ChartPresenter::LineChartZValue);
|
|
|
m_upper = new AreaBoundItem(this,m_series->upperSeries(),presenter);
|
|
|
if(m_series->lowerSeries()){
|
|
|
m_lower = new AreaBoundItem(this,m_series->lowerSeries(),presenter);
|
|
|
}
|
|
|
|
|
|
QObject::connect(areaSeries,SIGNAL(updated()),this,SLOT(handleUpdated()));
|
|
|
QObject::connect(this,SIGNAL(clicked(const QPointF&)),areaSeries,SIGNAL(clicked(const QPointF&)));
|
|
|
|
|
|
handleUpdated();
|
|
|
}
|
|
|
|
|
|
AreaChartItem::~AreaChartItem()
|
|
|
{
|
|
|
delete m_upper;
|
|
|
delete m_lower;
|
|
|
};
|
|
|
|
|
|
QRectF AreaChartItem::boundingRect() const
|
|
|
{
|
|
|
return m_rect;
|
|
|
}
|
|
|
|
|
|
QPainterPath AreaChartItem::shape() const
|
|
|
{
|
|
|
return m_path;
|
|
|
}
|
|
|
|
|
|
void AreaChartItem::updatePath()
|
|
|
{
|
|
|
QPainterPath path;
|
|
|
|
|
|
path.connectPath(m_upper->shape());
|
|
|
if(m_lower){
|
|
|
path.connectPath(m_lower->shape().toReversed());
|
|
|
}
|
|
|
else{
|
|
|
QPointF first = path.pointAtPercent(0);
|
|
|
QPointF last = path.pointAtPercent(1);
|
|
|
path.lineTo(last.x(),m_clipRect.bottom());
|
|
|
path.lineTo(first.x(),m_clipRect.bottom());
|
|
|
}
|
|
|
path.closeSubpath();
|
|
|
prepareGeometryChange();
|
|
|
m_path=path;
|
|
|
m_rect=path.boundingRect();
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void AreaChartItem::handleUpdated()
|
|
|
{
|
|
|
m_pointsVisible = m_series->pointsVisible();
|
|
|
m_linePen = m_series->pen();
|
|
|
m_brush = m_series->brush();
|
|
|
m_pointPen = m_series->pen();
|
|
|
m_pointPen.setWidthF(2*m_pointPen.width());
|
|
|
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void AreaChartItem::handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY)
|
|
|
{
|
|
|
m_upper->handleDomainChanged(minX,maxX,minY,maxY);
|
|
|
if(m_lower)
|
|
|
m_lower->handleDomainChanged(minX,maxX,minY,maxY);
|
|
|
}
|
|
|
|
|
|
void AreaChartItem::handleGeometryChanged(const QRectF& rect)
|
|
|
{
|
|
|
m_clipRect=rect.translated(-rect.topLeft());
|
|
|
setPos(rect.topLeft());
|
|
|
m_upper->handleGeometryChanged(rect);
|
|
|
if(m_lower)
|
|
|
m_lower->handleGeometryChanged(rect);
|
|
|
}
|
|
|
//painter
|
|
|
|
|
|
void AreaChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
|
|
|
{
|
|
|
Q_UNUSED(widget)
|
|
|
Q_UNUSED(option)
|
|
|
|
|
|
painter->save();
|
|
|
painter->setPen(m_linePen);
|
|
|
painter->setBrush(m_brush);
|
|
|
painter->setClipRect(m_clipRect);
|
|
|
painter->drawPath(m_path);
|
|
|
if(m_pointsVisible){
|
|
|
painter->setPen(m_pointPen);
|
|
|
painter->drawPoints(m_upper->points());
|
|
|
if(m_lower) painter->drawPoints(m_lower->points());
|
|
|
}
|
|
|
painter->restore();
|
|
|
}
|
|
|
|
|
|
void AreaChartItem::mousePressEvent( QGraphicsSceneMouseEvent * event )
|
|
|
{
|
|
|
emit clicked(m_upper->calculateDomainPoint(event->pos()));
|
|
|
}
|
|
|
|
|
|
#include "moc_areachartitem_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|