boxwhiskers.cpp
223 lines
| 6.7 KiB
| text/x-c
|
CppLexer
winter
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r0 | /**************************************************************************** | ||
** | ||||
** 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 | ||||