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#include "splinepresenter_p.h"
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#include <QPainter>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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SplinePresenter::SplinePresenter(QSplineSeries* series, QGraphicsObject *parent) :
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ChartItem(parent),m_series(series),m_boundingRect()
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{
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if (parent)
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m_boundingRect = parent->boundingRect();
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else
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m_boundingRect = QRectF(10,50, 250, 250);
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}
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void SplinePresenter::handleGeometryChanged(const QRectF&)
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{
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update();
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}
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void SplinePresenter::handleDomainChanged(const Domain& domain)
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{
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//
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}
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void SplinePresenter::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(widget);
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Q_UNUSED(option);
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painter->save();
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painter->setPen(Qt::SolidLine);
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QPainterPath splinePath;
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splinePath.moveTo(m_series->at(0));
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for (int i = 0; i < m_series->count() - 1; i++)
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{
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painter->setPen(Qt::red);
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splinePath.cubicTo(m_series->controlPoint(2 * i), m_series->controlPoint(2 * i + 1), m_series->at(i + 1));
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painter->drawEllipse(m_series->at(i), 4, 4);
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painter->setPen(Qt::blue);
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painter->drawLine(m_series->at(i), m_series->controlPoint(2 * i));
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painter->drawLine(m_series->at(i + 1), m_series->controlPoint(2 * i + 1));
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painter->drawEllipse(m_series->controlPoint(2 * i), 4, 4);
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painter->drawEllipse(m_series->controlPoint(2 * i + 1), 4, 4);
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}
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painter->setPen(Qt::red);
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painter->drawPath(splinePath);
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painter->restore();
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}
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#include "moc_splinepresenter_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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