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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "boxwhiskers_p.h"
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#include <QPainter>
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#include <QWidget>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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BoxWhiskers::BoxWhiskers(QBoxSet *set, AbstractDomain *domain, QGraphicsObject *parent) :
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QGraphicsObject(parent),
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m_boxSet(set),
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m_domain(domain)
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{
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setAcceptHoverEvents(true);
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setAcceptedMouseButtons(Qt::MouseButtonMask);
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}
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BoxWhiskers::~BoxWhiskers()
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{
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}
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void BoxWhiskers::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event)
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emit clicked(m_boxSet);
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}
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void BoxWhiskers::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
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{
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Q_UNUSED(event)
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emit hovered(true, m_boxSet);
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}
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void BoxWhiskers::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
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{
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Q_UNUSED(event)
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emit hovered(false, m_boxSet);
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}
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void BoxWhiskers::setBrush(const QBrush &brush)
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{
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m_brush = brush;
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update();
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}
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void BoxWhiskers::setPen(const QPen &pen)
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{
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m_pen = pen;
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update();
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}
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void BoxWhiskers::setLayout(const BoxWhiskersData &data)
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{
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m_data = data;
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updateGeometry();
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update();
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}
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QSizeF BoxWhiskers::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
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{
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Q_UNUSED(which)
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Q_UNUSED(constraint)
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return QSizeF();
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}
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void BoxWhiskers::setGeometry(const QRectF &rect)
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{
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Q_UNUSED(rect)
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}
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void BoxWhiskers::setDomainSize(const QSizeF &size)
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{
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m_domainSize = size;
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updateBoundingRect();
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}
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QRectF BoxWhiskers::boundingRect() const
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{
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return m_boundingRect;
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}
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void BoxWhiskers::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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painter->setPen(m_pen);
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painter->setBrush(m_brush);
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painter->setClipRect(parentItem()->boundingRect());
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painter->scale(m_domainSize.width() / m_data.m_boxItems, m_domainSize.height() / m_domain->spanY());
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painter->drawPath(m_boxPath);
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}
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void BoxWhiskers::updateGeometry()
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{
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prepareGeometryChange();
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QPainterPath path;
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qreal columnWidth = 1.0 / m_data.m_seriesCount;
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qreal left = 0.25 * columnWidth + columnWidth * m_data.m_seriesIndex;
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qreal right = 0.75 * columnWidth + columnWidth * m_data.m_seriesIndex;
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qreal middle = 0.5 * columnWidth + columnWidth * m_data.m_seriesIndex;
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qreal domainMaxY = m_domain->maxY();
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// Upper whisker
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path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_upperExtreme);
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path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_upperExtreme);
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path.moveTo(middle + m_data.m_index, domainMaxY - m_data.m_upperExtreme);
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path.lineTo(middle + m_data.m_index, domainMaxY - m_data.m_upperQuartile);
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// Middle Box
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path.addRect(left + m_data.m_index, domainMaxY - m_data.m_upperQuartile,
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0.5 * columnWidth, m_data.m_upperQuartile - m_data.m_lowerQuartile);
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// Median/mean line
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path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_median);
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path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_median);
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// Lower whisker
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path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_lowerExtreme);
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path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_lowerExtreme);
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path.moveTo(middle + m_data.m_index, domainMaxY - m_data.m_lowerExtreme);
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path.lineTo(middle + m_data.m_index, domainMaxY - m_data.m_lowerQuartile);
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path.closeSubpath();
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m_boxPath = path;
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updateBoundingRect();
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}
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void BoxWhiskers::updateBoundingRect()
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{
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qreal scaleY = m_domainSize.height() / (m_domain->maxY() - m_domain->minY());
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qreal scaleX = m_domainSize.width() / m_data.m_boxItems;
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QRectF br = m_boxPath.boundingRect();
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m_boundingRect = QRectF(br.x() * scaleX, br.y() * scaleY,
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br.width() * scaleX, br.height() * scaleY);
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}
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#include "moc_boxwhiskers_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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