boxwhiskers.cpp
167 lines
| 4.5 KiB
| text/x-c
|
CppLexer
Mika Salmela
|
r2548 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2013 Digia Plc | ||||
** All rights reserved. | ||||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
** This file is part of the Qt Commercial Charts Add-on. | ||||
** | ||||
** $QT_BEGIN_LICENSE$ | ||||
** Licensees holding valid Qt Commercial licenses may use this file in | ||||
** accordance with the Qt Commercial 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.digia.com | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include "boxwhiskers_p.h" | ||||
#include <QPainter> | ||||
#include <QWidget> | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
BoxWhiskers::BoxWhiskers(QBoxSet *set, AbstractDomain *domain, QGraphicsObject *parent) : | ||||
QGraphicsObject(parent), | ||||
m_boxSet(set), | ||||
m_domain(domain) | ||||
{ | ||||
setAcceptHoverEvents(true); | ||||
setAcceptedMouseButtons(Qt::MouseButtonMask); | ||||
} | ||||
BoxWhiskers::~BoxWhiskers() | ||||
{ | ||||
} | ||||
void BoxWhiskers::mousePressEvent(QGraphicsSceneMouseEvent *event) | ||||
{ | ||||
Q_UNUSED(event) | ||||
emit clicked(m_boxSet); | ||||
} | ||||
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::setBrush(const QBrush &brush) | ||||
{ | ||||
m_brush = brush; | ||||
update(); | ||||
} | ||||
void BoxWhiskers::setPen(const QPen &pen) | ||||
{ | ||||
m_pen = pen; | ||||
update(); | ||||
} | ||||
void BoxWhiskers::setLayout(const BoxWhiskersData &data) | ||||
{ | ||||
m_data = data; | ||||
updateGeometry(); | ||||
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) | ||||
} | ||||
void BoxWhiskers::setDomainSize(const QSizeF &size) | ||||
{ | ||||
m_domainSize = size; | ||||
updateBoundingRect(); | ||||
} | ||||
QRectF BoxWhiskers::boundingRect() const | ||||
{ | ||||
return m_boundingRect; | ||||
} | ||||
void BoxWhiskers::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||||
{ | ||||
Q_UNUSED(option) | ||||
Q_UNUSED(widget) | ||||
painter->setPen(m_pen); | ||||
painter->setBrush(m_brush); | ||||
painter->setClipRect(parentItem()->boundingRect()); | ||||
painter->scale(m_domainSize.width() / m_data.m_boxItems, m_domainSize.height() / m_domain->spanY()); | ||||
painter->drawPath(m_boxPath); | ||||
} | ||||
void BoxWhiskers::updateGeometry() | ||||
{ | ||||
prepareGeometryChange(); | ||||
QPainterPath path; | ||||
qreal columnWidth = 1.0 / m_data.m_seriesCount; | ||||
qreal left = 0.25 * columnWidth + columnWidth * m_data.m_seriesIndex; | ||||
qreal right = 0.75 * columnWidth + columnWidth * m_data.m_seriesIndex; | ||||
qreal middle = 0.5 * columnWidth + columnWidth * m_data.m_seriesIndex; | ||||
qreal domainMaxY = m_domain->maxY(); | ||||
// Upper whisker | ||||
path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_upperExtreme); | ||||
path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_upperExtreme); | ||||
path.moveTo(middle + m_data.m_index, domainMaxY - m_data.m_upperExtreme); | ||||
path.lineTo(middle + m_data.m_index, domainMaxY - m_data.m_upperQuartile); | ||||
// Middle Box | ||||
path.addRect(left + m_data.m_index, domainMaxY - m_data.m_upperQuartile, | ||||
0.5 * columnWidth, m_data.m_upperQuartile - m_data.m_lowerQuartile); | ||||
// Median/mean line | ||||
path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_median); | ||||
path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_median); | ||||
// Lower whisker | ||||
path.moveTo(left + m_data.m_index, domainMaxY - m_data.m_lowerExtreme); | ||||
path.lineTo(right + m_data.m_index, domainMaxY - m_data.m_lowerExtreme); | ||||
path.moveTo(middle + m_data.m_index, domainMaxY - m_data.m_lowerExtreme); | ||||
path.lineTo(middle + m_data.m_index, domainMaxY - m_data.m_lowerQuartile); | ||||
path.closeSubpath(); | ||||
m_boxPath = path; | ||||
updateBoundingRect(); | ||||
} | ||||
void BoxWhiskers::updateBoundingRect() | ||||
{ | ||||
qreal scaleY = m_domainSize.height() / (m_domain->maxY() - m_domain->minY()); | ||||
qreal scaleX = m_domainSize.width() / m_data.m_boxItems; | ||||
QRectF br = m_boxPath.boundingRect(); | ||||
m_boundingRect = QRectF(br.x() * scaleX, br.y() * scaleY, | ||||
br.width() * scaleX, br.height() * scaleY); | ||||
} | ||||
#include "moc_boxwhiskers_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||