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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd
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** All rights reserved.
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** For any questions to The Qt Company, please use contact form at http://qt.io
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**
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** This file is part of the Qt Charts module.
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**
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** Licensees holding valid commercial license for Qt may use this file in
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** accordance with the Qt License Agreement provided with the Software
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** or, alternatively, in accordance with the terms contained in a written
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** agreement between you and The Qt Company.
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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.io
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**
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****************************************************************************/
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#include <private/boxwhiskers_p.h>
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#include <QtGui/QPainter>
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#include <QtWidgets/QWidget>
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#include <QtWidgets/QGraphicsSceneMouseEvent>
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QT_CHARTS_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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m_mousePressed(false)
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{
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setAcceptHoverEvents(true);
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setAcceptedMouseButtons(Qt::MouseButtonMask);
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setFlag(QGraphicsObject::ItemIsSelectable);
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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 pressed(m_boxSet);
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m_mousePressed = true;
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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::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event)
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emit released(m_boxSet);
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if (m_mousePressed)
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emit clicked(m_boxSet);
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}
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void BoxWhiskers::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event)
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// For Box a press signal needs to be explicitly fired for mouseDoubleClickEvent
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emit pressed(m_boxSet);
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emit doubleClicked(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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m_outlinePen.setColor(m_brush.color());
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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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qreal widthDiff = pen.widthF() - m_pen.widthF();
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m_boundingRect.adjust(-widthDiff, -widthDiff, widthDiff, widthDiff);
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m_pen = pen;
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m_medianPen = pen;
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m_medianPen.setCapStyle(Qt::FlatCap);
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m_outlinePen = pen;
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m_outlinePen.setStyle(Qt::SolidLine);
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m_outlinePen.setColor(m_brush.color());
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update();
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}
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void BoxWhiskers::setBoxWidth(const qreal width)
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{
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m_boxWidth = width;
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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(m_domain);
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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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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->save();
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painter->setBrush(m_brush);
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painter->setClipRect(parentItem()->boundingRect());
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painter->setPen(m_pen);
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painter->drawPath(m_boxPath);
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if (!m_boxOutlined)
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painter->setPen(m_outlinePen);
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painter->drawRect(m_middleBox);
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painter->setPen(m_medianPen);
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qreal halfLine = m_pen.widthF() / 2.0;
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painter->drawLine(QLineF(m_geometryLeft - halfLine, m_geometryMedian,
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m_geometryRight + halfLine, m_geometryMedian));
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painter->restore();
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}
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void BoxWhiskers::updateGeometry(AbstractDomain *domain)
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{
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m_domain = domain;
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prepareGeometryChange();
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QPainterPath path;
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m_boxPath = path;
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m_boundingRect = m_boxPath.boundingRect();
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qreal columnWidth = 1.0 / m_data.m_seriesCount;
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qreal left = ((1.0 - m_boxWidth) / 2.0) * columnWidth + columnWidth * m_data.m_seriesIndex + m_data.m_index - 0.5;
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qreal barWidth = m_boxWidth * columnWidth;
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QPointF geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_upperExtreme), m_validData);
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if (!m_validData)
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return;
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m_geometryLeft = geometryPoint.x();
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qreal geometryUpperExtreme = geometryPoint.y();
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geometryPoint = m_domain->calculateGeometryPoint(QPointF(left + barWidth, m_data.m_upperQuartile), m_validData);
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if (!m_validData)
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return;
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m_geometryRight = geometryPoint.x();
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qreal geometryUpperQuartile = geometryPoint.y();
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geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_lowerQuartile), m_validData);
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if (!m_validData)
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return;
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qreal geometryLowerQuartile = geometryPoint.y();
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geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_lowerExtreme), m_validData);
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if (!m_validData)
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return;
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qreal geometryLowerExtreme = geometryPoint.y();
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geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_median), m_validData);
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if (!m_validData)
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return;
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m_geometryMedian = geometryPoint.y();
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// Upper whisker
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path.moveTo(m_geometryLeft, geometryUpperExtreme);
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path.lineTo(m_geometryRight, geometryUpperExtreme);
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path.moveTo((m_geometryLeft + m_geometryRight) / 2.0, geometryUpperExtreme);
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path.lineTo((m_geometryLeft + m_geometryRight) / 2.0, geometryUpperQuartile);
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// Middle Box
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m_middleBox.setCoords(m_geometryLeft, geometryUpperQuartile, m_geometryRight, geometryLowerQuartile);
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// Lower whisker
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path.moveTo(m_geometryLeft, geometryLowerExtreme);
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path.lineTo(m_geometryRight, geometryLowerExtreme);
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path.moveTo((m_geometryLeft + m_geometryRight) / 2.0, geometryLowerQuartile);
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path.lineTo((m_geometryLeft + m_geometryRight) / 2.0, geometryLowerExtreme);
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path.closeSubpath();
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m_boxPath = path;
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m_boundingRect = m_boxPath.boundingRect();
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qreal extra = m_pen.widthF();
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m_boundingRect.adjust(-extra, -extra, extra, extra);
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}
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#include "moc_boxwhiskers_p.cpp"
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QT_CHARTS_END_NAMESPACE
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