##// END OF EJS Templates
improvements in execution time, colorbar ok, more work to do on axes,
improvements in execution time, colorbar ok, more work to do on axes,

File last commit:

r0:5db0360e1259 default
r3:ab1c9ba54a31 default
Show More
boxwhiskers.cpp
223 lines | 6.7 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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)
{
Q_UNUSED(event)
emit pressed(m_boxSet);
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)
{
Q_UNUSED(event)
emit released(m_boxSet);
if (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