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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include <private/boxwhiskers_p.h>
#include <QtGui/QPainter>
#include <QtWidgets/QWidget>
#include <QtWidgets/QGraphicsSceneMouseEvent>
QT_CHARTS_BEGIN_NAMESPACE
BoxWhiskers::BoxWhiskers(QBoxSet *set, AbstractDomain *domain, QGraphicsObject *parent) :
QGraphicsObject(parent),
m_boxSet(set),
m_domain(domain),
m_mousePressed(false)
{
setAcceptHoverEvents(true);
setAcceptedMouseButtons(Qt::MouseButtonMask);
setFlag(QGraphicsObject::ItemIsSelectable);
}
BoxWhiskers::~BoxWhiskers()
{
}
void BoxWhiskers::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
emit pressed(m_boxSet);
m_lastMousePos = event->pos();
m_mousePressed = true;
}
void BoxWhiskers::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event)
emit hovered(true, m_boxSet);
}
void BoxWhiskers::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event)
emit hovered(false, m_boxSet);
}
void BoxWhiskers::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
emit released(m_boxSet);
if (m_lastMousePos == event->pos() && m_mousePressed)
emit clicked(m_boxSet);
}
void BoxWhiskers::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
Q_UNUSED(event)
// For Box a press signal needs to be explicitly fired for mouseDoubleClickEvent
emit pressed(m_boxSet);
emit doubleClicked(m_boxSet);
}
void BoxWhiskers::setBrush(const QBrush &brush)
{
m_brush = brush;
m_outlinePen.setColor(m_brush.color());
update();
}
void BoxWhiskers::setPen(const QPen &pen)
{
qreal widthDiff = pen.widthF() - m_pen.widthF();
m_boundingRect.adjust(-widthDiff, -widthDiff, widthDiff, widthDiff);
m_pen = pen;
m_medianPen = pen;
m_medianPen.setCapStyle(Qt::FlatCap);
m_outlinePen = pen;
m_outlinePen.setStyle(Qt::SolidLine);
m_outlinePen.setColor(m_brush.color());
update();
}
void BoxWhiskers::setBoxWidth(const qreal width)
{
m_boxWidth = width;
}
void BoxWhiskers::setLayout(const BoxWhiskersData &data)
{
m_data = data;
updateGeometry(m_domain);
update();
}
QSizeF BoxWhiskers::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
{
Q_UNUSED(which)
Q_UNUSED(constraint)
return QSizeF();
}
void BoxWhiskers::setGeometry(const QRectF &rect)
{
Q_UNUSED(rect)
}
QRectF BoxWhiskers::boundingRect() const
{
return m_boundingRect;
}
void BoxWhiskers::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option)
Q_UNUSED(widget)
painter->save();
painter->setBrush(m_brush);
painter->setClipRect(parentItem()->boundingRect());
painter->setPen(m_pen);
painter->drawPath(m_boxPath);
if (!m_boxOutlined)
painter->setPen(m_outlinePen);
painter->drawRect(m_middleBox);
painter->setPen(m_medianPen);
qreal halfLine = m_pen.widthF() / 2.0;
painter->drawLine(QLineF(m_geometryLeft - halfLine, m_geometryMedian,
m_geometryRight + halfLine, m_geometryMedian));
painter->restore();
}
void BoxWhiskers::updateGeometry(AbstractDomain *domain)
{
m_domain = domain;
prepareGeometryChange();
QPainterPath path;
m_boxPath = path;
m_boundingRect = m_boxPath.boundingRect();
qreal columnWidth = 1.0 / m_data.m_seriesCount;
qreal left = ((1.0 - m_boxWidth) / 2.0) * columnWidth + columnWidth * m_data.m_seriesIndex + m_data.m_index - 0.5;
qreal barWidth = m_boxWidth * columnWidth;
QPointF geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_upperExtreme), m_validData);
if (!m_validData)
return;
m_geometryLeft = geometryPoint.x();
qreal geometryUpperExtreme = geometryPoint.y();
geometryPoint = m_domain->calculateGeometryPoint(QPointF(left + barWidth, m_data.m_upperQuartile), m_validData);
if (!m_validData)
return;
m_geometryRight = geometryPoint.x();
qreal geometryUpperQuartile = geometryPoint.y();
geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_lowerQuartile), m_validData);
if (!m_validData)
return;
qreal geometryLowerQuartile = geometryPoint.y();
geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_lowerExtreme), m_validData);
if (!m_validData)
return;
qreal geometryLowerExtreme = geometryPoint.y();
geometryPoint = m_domain->calculateGeometryPoint(QPointF(left, m_data.m_median), m_validData);
if (!m_validData)
return;
m_geometryMedian = geometryPoint.y();
// Upper whisker
path.moveTo(m_geometryLeft, geometryUpperExtreme);
path.lineTo(m_geometryRight, geometryUpperExtreme);
path.moveTo((m_geometryLeft + m_geometryRight) / 2.0, geometryUpperExtreme);
path.lineTo((m_geometryLeft + m_geometryRight) / 2.0, geometryUpperQuartile);
// Middle Box
m_middleBox.setCoords(m_geometryLeft, geometryUpperQuartile, m_geometryRight, geometryLowerQuartile);
// Lower whisker
path.moveTo(m_geometryLeft, geometryLowerExtreme);
path.lineTo(m_geometryRight, geometryLowerExtreme);
path.moveTo((m_geometryLeft + m_geometryRight) / 2.0, geometryLowerQuartile);
path.lineTo((m_geometryLeft + m_geometryRight) / 2.0, geometryLowerExtreme);
path.closeSubpath();
m_boxPath = path;
m_boundingRect = m_boxPath.boundingRect();
qreal extra = m_pen.widthF();
m_boundingRect.adjust(-extra, -extra, extra, extra);
}
#include "moc_boxwhiskers_p.cpp"
QT_CHARTS_END_NAMESPACE
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