Revision control
++ // Copyright (C) 2021 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <private/splinechartitem_p.h>
++ #include <private/qsplineseries_p.h>
++ #include <private/chartpresenter_p.h>
++ #include <private/splineanimation_p.h>
++ #include <private/polardomain_p.h>
++ #include <QtGui/QPainter>
++ #include <QtWidgets/QGraphicsSceneMouseEvent>
++
++ QT_BEGIN_NAMESPACE
++
++ SplineChartItem::SplineChartItem(QSplineSeries *series, QGraphicsItem *item)
++ : XYChart(series,item),
++ m_series(series),
++ m_pointsVisible(false),
++ m_animation(0),
++ m_pointLabelsVisible(false),
++ m_markerSize(series->markerSize()),
++ m_pointLabelsFormat(series->pointLabelsFormat()),
++ m_pointLabelsFont(series->pointLabelsFont()),
++ m_pointLabelsColor(series->pointLabelsColor()),
++ m_pointLabelsClipping(true),
++ m_lastHoveredMatchedPos{qQNaN(), qQNaN()},
++ m_mousePressed(false)
++ {
++ setAcceptHoverEvents(true);
++ setFlag(QGraphicsItem::ItemIsSelectable);
++ setZValue(ChartPresenter::SplineChartZValue);
++ connect(m_series->d_func(), &QXYSeriesPrivate::seriesUpdated,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::lightMarkerChanged, this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::selectedLightMarkerChanged, this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::markerSizeChanged, this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::visibleChanged, this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::opacityChanged, this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::pointLabelsFormatChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::pointLabelsVisibilityChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::pointLabelsFontChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::pointLabelsColorChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QXYSeries::pointLabelsClippingChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QSplineSeries::selectedColorChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QLineSeries::selectedPointsChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++ connect(series, &QSplineSeries::pointsConfigurationChanged,
++ this, &SplineChartItem::handleSeriesUpdated);
++
++ handleSeriesUpdated();
++ }
++
++ QRectF SplineChartItem::boundingRect() const
++ {
++ return m_rect;
++ }
++
++ QPainterPath SplineChartItem::shape() const
++ {
++ return m_fullPath;
++ }
++
++ void SplineChartItem::setAnimation(SplineAnimation *animation)
++ {
++ m_animation = animation;
++ XYChart::setAnimation(animation);
++ }
++
++ ChartAnimation *SplineChartItem::animation() const
++ {
++ return m_animation;
++ }
++
++ void SplineChartItem::setControlGeometryPoints(const QList<QPointF> &points)
++ {
++ m_controlPoints = points;
++ }
++
++ QList<QPointF> SplineChartItem::controlGeometryPoints() const
++ {
++ return m_controlPoints;
++ }
++
++ void SplineChartItem::updateChart(const QList<QPointF> &oldPoints, const QList<QPointF> &newPoints,
++ int index)
++ {
++ QList<QPointF> controlPoints;
++ if (newPoints.size() >= 2)
++ controlPoints = calculateControlPoints(newPoints);
++
++ if (m_animation)
++ m_animation->setup(oldPoints, newPoints, m_controlPoints, controlPoints, index);
++
++ m_points = newPoints;
++ m_controlPoints = controlPoints;
++ setDirty(false);
++
++ if (m_animation)
++ presenter()->startAnimation(m_animation);
++ else
++ updateGeometry();
++ }
++
++ void SplineChartItem::updateGeometry()
++ {
++ const QList<QPointF> &points = m_points;
++ const QList<QPointF> &controlPoints = m_controlPoints;
++
++ if ((points.size() < 2) || (controlPoints.size() < 2)) {
++ prepareGeometryChange();
++ m_path = QPainterPath();
++ m_rect = QRect();
++ return;
++ }
++
++ Q_ASSERT(points.size() * 2 - 2 == controlPoints.size());
++
++ QPainterPath splinePath;
++ QPainterPath fullPath;
++ // Use worst case scenario to determine required margin.
++ qreal margin = m_linePen.width() * 1.42;
++
++ if (m_series->chart()->chartType() == QChart::ChartTypePolar) {
++ QPainterPath splinePathLeft;
++ QPainterPath splinePathRight;
++ QPainterPath *currentSegmentPath = 0;
++ QPainterPath *previousSegmentPath = 0;
++ qreal minX = domain()->minX();
++ qreal maxX = domain()->maxX();
++ qreal minY = domain()->minY();
++ QPointF currentSeriesPoint = m_series->at(0);
++ QPointF currentGeometryPoint = points.at(0);
++ QPointF previousGeometryPoint = points.at(0);
++ bool pointOffGrid = false;
++ bool previousPointWasOffGrid = (currentSeriesPoint.x() < minX || currentSeriesPoint.x() > maxX);
++ m_visiblePoints.clear();
++ m_visiblePoints.reserve(points.size());
++
++ qreal domainRadius = domain()->size().height() / 2.0;
++ const QPointF centerPoint(domainRadius, domainRadius);
++
++ if (!previousPointWasOffGrid) {
++ fullPath.moveTo(points.at(0));
++ // Do not draw points for points below minimum Y.
++ if (m_pointsVisible && currentSeriesPoint.y() >= minY)
++ m_visiblePoints.append(currentGeometryPoint);
++ }
++
++ qreal leftMarginLine = centerPoint.x() - margin;
++ qreal rightMarginLine = centerPoint.x() + margin;
++ qreal horizontal = centerPoint.y();
++
++ // See ScatterChartItem::updateGeometry() for explanation why seriesLastIndex is needed
++ const int seriesLastIndex = m_series->count() - 1;
++
++ for (int i = 1; i < points.size(); i++) {
++ // Interpolating spline fragments accurately is not trivial, and would anyway be ugly
++ // when thick pen is used, so we work around it by utilizing three separate
++ // paths for spline segments and clip those with custom regions at paint time.
++ // "Right" path contains segments that cross the axis line with visible point on the
++ // right side of the axis line, as well as segments that have one point within the margin
++ // on the right side of the axis line and another point on the right side of the chart.
++ // "Left" path contains points with similarly on the left side.
++ // "Full" path contains rest of the points.
++ // This doesn't yield perfect results always. E.g. when segment covers more than 90
++ // degrees and both of the points are within the margin, one in the top half and one in the
++ // bottom half of the chart, the bottom one gets clipped incorrectly.
++ // However, this should be rare occurrence in any sensible chart.
++ currentSeriesPoint = m_series->at(qMin(seriesLastIndex, i));
++ currentGeometryPoint = points.at(i);
++ pointOffGrid = (currentSeriesPoint.x() < minX || currentSeriesPoint.x() > maxX);
++
++ // Draw something unless both off-grid
++ if (!pointOffGrid || !previousPointWasOffGrid) {
++ bool dummyOk; // We know points are ok, but this is needed
++ qreal currentAngle = static_cast<PolarDomain *>(domain())->toAngularCoordinate(currentSeriesPoint.x(), dummyOk);
++ qreal previousAngle = static_cast<PolarDomain *>(domain())->toAngularCoordinate(m_series->at(i - 1).x(), dummyOk);
++
++ if ((qAbs(currentAngle - previousAngle) > 180.0)) {
++ // If the angle between two points is over 180 degrees (half X range),
++ // any direct segment between them becomes meaningless.
++ // In this case two line segments are drawn instead, from previous
++ // point to the center and from center to current point.
++ if ((previousAngle < 0.0 || (previousAngle <= 180.0 && previousGeometryPoint.x() < rightMarginLine))
++ && previousGeometryPoint.y() < horizontal) {
++ currentSegmentPath = &splinePathRight;
++ } else if ((previousAngle > 360.0 || (previousAngle > 180.0 && previousGeometryPoint.x() > leftMarginLine))
++ && previousGeometryPoint.y() < horizontal) {
++ currentSegmentPath = &splinePathLeft;
++ } else if (previousAngle > 0.0 && previousAngle < 360.0) {
++ currentSegmentPath = &splinePath;
++ } else {
++ currentSegmentPath = 0;
++ }
++
++ if (currentSegmentPath) {
++ if (previousSegmentPath != currentSegmentPath)
++ currentSegmentPath->moveTo(previousGeometryPoint);
++ if (!previousSegmentPath)
++ fullPath.moveTo(previousGeometryPoint);
++
++ currentSegmentPath->lineTo(centerPoint);
++ fullPath.lineTo(centerPoint);
++ }
++
++ previousSegmentPath = currentSegmentPath;
++
++ if ((currentAngle < 0.0 || (currentAngle <= 180.0 && currentGeometryPoint.x() < rightMarginLine))
++ && currentGeometryPoint.y() < horizontal) {
++ currentSegmentPath = &splinePathRight;
++ } else if ((currentAngle > 360.0 || (currentAngle > 180.0 &¤tGeometryPoint.x() > leftMarginLine))
++ && currentGeometryPoint.y() < horizontal) {
++ currentSegmentPath = &splinePathLeft;
++ } else if (currentAngle > 0.0 && currentAngle < 360.0) {
++ currentSegmentPath = &splinePath;
++ } else {
++ currentSegmentPath = 0;
++ }
++
++ if (currentSegmentPath) {
++ if (previousSegmentPath != currentSegmentPath)
++ currentSegmentPath->moveTo(centerPoint);
++ if (!previousSegmentPath)
++ fullPath.moveTo(centerPoint);
++
++ currentSegmentPath->lineTo(currentGeometryPoint);
++ fullPath.lineTo(currentGeometryPoint);
++ }
++ } else {
++ QPointF cp1 = controlPoints[2 * (i - 1)];
++ QPointF cp2 = controlPoints[(2 * i) - 1];
++
++ if (previousAngle < 0.0 || currentAngle < 0.0
++ || ((previousAngle <= 180.0 && currentAngle <= 180.0)
++ && ((previousGeometryPoint.x() < rightMarginLine && previousGeometryPoint.y() < horizontal)
++ || (currentGeometryPoint.x() < rightMarginLine && currentGeometryPoint.y() < horizontal)))) {
++ currentSegmentPath = &splinePathRight;
++ } else if (previousAngle > 360.0 || currentAngle > 360.0
++ || ((previousAngle > 180.0 && currentAngle > 180.0)
++ && ((previousGeometryPoint.x() > leftMarginLine && previousGeometryPoint.y() < horizontal)
++ || (currentGeometryPoint.x() > leftMarginLine && currentGeometryPoint.y() < horizontal)))) {
++ currentSegmentPath = &splinePathLeft;
++ } else {
++ currentSegmentPath = &splinePath;
++ }
++
++ if (currentSegmentPath != previousSegmentPath)
++ currentSegmentPath->moveTo(previousGeometryPoint);
++ if (!previousSegmentPath)
++ fullPath.moveTo(previousGeometryPoint);
++
++ fullPath.cubicTo(cp1, cp2, currentGeometryPoint);
++ currentSegmentPath->cubicTo(cp1, cp2, currentGeometryPoint);
++ }
++ } else {
++ currentSegmentPath = 0;
++ }
++
++ previousPointWasOffGrid = pointOffGrid;
++ if (!pointOffGrid && m_pointsVisible && currentSeriesPoint.y() >= minY)
++ m_visiblePoints.append(currentGeometryPoint);
++ previousSegmentPath = currentSegmentPath;
++ previousGeometryPoint = currentGeometryPoint;
++ }
++
++ m_pathPolarRight = splinePathRight;
++ m_pathPolarLeft = splinePathLeft;
++ // Note: This construction of m_fullpath is not perfect. The partial segments that are
++ // outside left/right clip regions at axis boundary still generate hover/click events,
++ // because shape doesn't get clipped. It doesn't seem possible to do sensibly.
++ } else { // not polar
++ splinePath.moveTo(points.at(0));
++ for (int i = 0; i < points.size() - 1; i++) {
++ const QPointF &point = points.at(i + 1);
++ splinePath.cubicTo(controlPoints[2 * i], controlPoints[2 * i + 1], point);
++ }
++ fullPath = splinePath;
++ }
++
++ QPainterPathStroker stroker;
++ // The full path is comprised of three separate paths.
++ // This is why we are prepared for the "worst case" scenario, i.e. use always MiterJoin and
++ // multiply line width with square root of two when defining shape and bounding rectangle.
++ stroker.setWidth(margin);
++ stroker.setJoinStyle(Qt::MiterJoin);
++ stroker.setCapStyle(Qt::SquareCap);
++ stroker.setMiterLimit(m_linePen.miterLimit());
++
++ // Only zoom in if the bounding rects of the path fit inside int limits. QWidget::update() uses
++ // a region that has to be compatible with QRect.
++ QPainterPath checkShapePath = stroker.createStroke(fullPath);
++
++ // For mouse interactivity, we have to add the rects *after* the 'createStroke',
++ // as we don't need the outline - we need it filled up.
++ if (!m_series->lightMarker().isNull() || (!m_series->selectedLightMarker().isNull()
++ && !m_series->selectedPoints().isEmpty())) {
++ // +1, +2: a margin to guarantee we cover all of the pixmap
++ qreal markerHalfSize = (m_series->markerSize() / 2.0) + 1;
++ qreal markerSize = m_series->markerSize() + 2;
++
++ for (const auto &point : std::as_const(points)) {
++ checkShapePath.addRect(point.x() - markerHalfSize,
++ point.y() - markerHalfSize,
++ markerSize, markerSize);
++ }
++ }
++
++ if (checkShapePath.boundingRect().height() <= INT_MAX
++ && checkShapePath.boundingRect().width() <= INT_MAX
++ && splinePath.boundingRect().height() <= INT_MAX
++ && splinePath.boundingRect().width() <= INT_MAX) {
++ m_path = splinePath;
++
++ prepareGeometryChange();
++
++ m_fullPath = checkShapePath;
++ m_rect = m_fullPath.boundingRect();
++ }
++ }
++
++ /*!
++ Calculates control points which are needed by QPainterPath.cubicTo function to draw the cubic Bezier cureve between two points.
++ */
++ QList<QPointF> SplineChartItem::calculateControlPoints(const QList<QPointF> &points)
++ {
++ QList<QPointF> controlPoints;
++ controlPoints.resize(points.size() * 2 - 2);
++
++ int n = points.size() - 1;
++
++ if (n == 1) {
++ //for n==1
++ controlPoints[0].setX((2 * points[0].x() + points[1].x()) / 3);
++ controlPoints[0].setY((2 * points[0].y() + points[1].y()) / 3);
++ controlPoints[1].setX(2 * controlPoints[0].x() - points[0].x());
++ controlPoints[1].setY(2 * controlPoints[0].y() - points[0].y());
++ return controlPoints;
++ }
++
++ // Calculate first Bezier control points
++ // Set of equations for P0 to Pn points.
++ //
++ // | 2 1 0 0 ... 0 0 0 ... 0 0 0 | | P1_1 | | P0 + 2 * P1 |
++ // | 1 4 1 0 ... 0 0 0 ... 0 0 0 | | P1_2 | | 4 * P1 + 2 * P2 |
++ // | 0 1 4 1 ... 0 0 0 ... 0 0 0 | | P1_3 | | 4 * P2 + 2 * P3 |
++ // | . . . . . . . . . . . . | | ... | | ... |
++ // | 0 0 0 0 ... 1 4 1 ... 0 0 0 | * | P1_i | = | 4 * P(i-1) + 2 * Pi |
++ // | . . . . . . . . . . . . | | ... | | ... |
++ // | 0 0 0 0 0 0 0 0 ... 1 4 1 | | P1_(n-1)| | 4 * P(n-2) + 2 * P(n-1) |
++ // | 0 0 0 0 0 0 0 0 ... 0 2 7 | | P1_n | | 8 * P(n-1) + Pn |
++ //
++ QList<qreal> list;
++ list.resize(n);
++
++ list[0] = points[0].x() + 2 * points[1].x();
++
++ for (int i = 1; i < n - 1; ++i)
++ list[i] = 4 * points[i].x() + 2 * points[i + 1].x();
++
++ list[n - 1] = (8 * points[n - 1].x() + points[n].x()) / 2.0;
++
++ const QList<qreal> xControl = firstControlPoints(list);
++
++ list[0] = points[0].y() + 2 * points[1].y();
++
++ for (int i = 1; i < n - 1; ++i)
++ list[i] = 4 * points[i].y() + 2 * points[i + 1].y();
++
++ list[n - 1] = (8 * points[n - 1].y() + points[n].y()) / 2.0;
++
++ const QList<qreal> yControl = firstControlPoints(list);
++
++ for (int i = 0, j = 0; i < n; ++i, ++j) {
++
++ controlPoints[j].setX(xControl[i]);
++ controlPoints[j].setY(yControl[i]);
++
++ j++;
++
++ if (i < n - 1) {
++ controlPoints[j].setX(2 * points[i + 1].x() - xControl[i + 1]);
++ controlPoints[j].setY(2 * points[i + 1].y() - yControl[i + 1]);
++ } else {
++ controlPoints[j].setX((points[n].x() + xControl[n - 1]) / 2);
++ controlPoints[j].setY((points[n].y() + yControl[n - 1]) / 2);
++ }
++ }
++ return controlPoints;
++ }
++
++ QList<qreal> SplineChartItem::firstControlPoints(const QList<qreal> &list)
++ {
++ QList<qreal> result;
++
++ int count = list.size();
++ result.resize(count);
++ result[0] = list[0] / 2.0;
++
++ QList<qreal> temp;
++ temp.resize(count);
++ temp[0] = 0;
++
++ qreal b = 2.0;
++
++ for (int i = 1; i < count; i++) {
++ temp[i] = 1 / b;
++ b = (i < count - 1 ? 4.0 : 3.5) - temp[i];
++ result[i] = (list[i] - result[i - 1]) / b;
++ }
++
++ for (int i = 1; i < count; i++)
++ result[count - i - 1] -= temp[count - i] * result[count - i];
++
++ return result;
++ }
++
++ //handlers
++
++ void SplineChartItem::handleSeriesUpdated()
++ {
++ setVisible(m_series->isVisible());
++ setOpacity(m_series->opacity());
++ m_pointsVisible = m_series->pointsVisible();
++ m_linePen = m_series->pen();
++ m_pointPen = m_series->pen();
++ m_pointPen.setWidthF(2 * m_pointPen.width());
++ m_pointLabelsFormat = m_series->pointLabelsFormat();
++ m_pointLabelsVisible = m_series->pointLabelsVisible();
++ m_markerSize = m_series->markerSize();
++ m_pointLabelsFont = m_series->pointLabelsFont();
++ m_pointLabelsColor = m_series->pointLabelsColor();
++ m_selectedPoints = m_series->selectedPoints();
++ m_selectedColor = m_series->selectedColor();
++ bool labelClippingChanged = m_pointLabelsClipping != m_series->pointLabelsClipping();
++ m_pointLabelsClipping = m_series->pointLabelsClipping();
++ // Update whole chart in case label clipping changed as labels can be outside series area
++ if (labelClippingChanged)
++ m_series->chart()->update();
++ else
++ update();
++ }
++
++ //painter
++
++ void SplineChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
++ {
++ Q_UNUSED(widget);
++ Q_UNUSED(option);
++
++ QRectF clipRect = QRectF(QPointF(0, 0), domain()->size());
++
++ painter->save();
++ painter->setPen(m_linePen);
++ painter->setBrush(Qt::NoBrush);
++
++ if (m_series->chart()->chartType() == QChart::ChartTypePolar) {
++ qreal halfWidth = domain()->size().width() / 2.;
++ QRectF clipRectLeft = QRectF(0, 0, halfWidth, domain()->size().height());
++ QRectF clipRectRight = QRectF(halfWidth, 0, halfWidth, domain()->size().height());
++ QRegion fullPolarClipRegion(clipRect.toRect(), QRegion::Ellipse);
++ QRegion clipRegionLeft(fullPolarClipRegion.intersected(clipRectLeft.toRect()));
++ QRegion clipRegionRight(fullPolarClipRegion.intersected(clipRectRight.toRect()));
++ painter->setClipRegion(clipRegionLeft);
++ painter->drawPath(m_pathPolarLeft);
++ painter->setClipRegion(clipRegionRight);
++ painter->drawPath(m_pathPolarRight);
++ painter->setClipRegion(fullPolarClipRegion);
++ } else {
++ painter->setClipRect(clipRect);
++ }
++
++ if (m_series->bestFitLineVisible())
++ m_series->d_func()->drawBestFitLine(painter, clipRect);
++
++ painter->drawPath(m_path);
++
++ int pointLabelsOffset = m_linePen.width() / 2;
++
++ // Draw markers if a marker or marker for selected points only has been
++ // set (set to QImage() to disable)
++ if (!m_series->lightMarker().isNull() || (!m_series->selectedLightMarker().isNull()
++ && !m_series->selectedPoints().isEmpty())) {
++ const QImage &marker = m_series->lightMarker();
++ const QImage &selectedMarker = m_series->selectedLightMarker();
++ qreal markerHalfSize = m_markerSize / 2.0;
++ pointLabelsOffset = markerHalfSize;
++
++ for (int i = 0; i < m_points.size(); ++i) {
++ // Documentation of light markers says that points visibility and
++ // light markers are independent features. Therefore m_pointsVisible
++ // is not used here as light markers are drawn if lightMarker is not null.
++ // However points visibility configuration can be still used here.
++ bool drawPoint = !m_series->lightMarker().isNull();
++ if (m_pointsConfiguration.contains(i)) {
++ const auto &conf = m_pointsConfiguration[i];
++
++ if (conf.contains(QXYSeries::PointConfiguration::Visibility)) {
++ drawPoint = m_pointsConfiguration[i][QXYSeries::PointConfiguration::Visibility]
++ .toBool();
++ }
++ }
++
++ bool drawSelectedPoint = false;
++ if (m_series->isPointSelected(i)) {
++ drawPoint = true;
++ drawSelectedPoint = !selectedMarker.isNull();
++ }
++ if (drawPoint) {
++ const QRectF rect(m_points[i].x() - markerHalfSize,
++ m_points[i].y() - markerHalfSize,
++ m_markerSize, m_markerSize);
++ painter->drawImage(rect, drawSelectedPoint ? selectedMarker : marker);
++ }
++ }
++ }
++
++ if (m_pointLabelsVisible) {
++ if (m_pointLabelsClipping)
++ painter->setClipping(true);
++ else
++ painter->setClipping(false);
++ m_series->d_func()->drawSeriesPointLabels(painter, m_points, pointLabelsOffset);
++ }
++
++ painter->setPen(m_pointPen);
++ if (m_series->chart()->chartType() == QChart::ChartTypePolar && m_pointsVisible) {
++ painter->drawPoints(m_visiblePoints);
++ } else {
++ const bool simpleDraw = m_selectedPoints.isEmpty() && m_pointsConfiguration.isEmpty();
++ painter->setPen(Qt::NoPen);
++ painter->setBrush(m_linePen.color());
++ painter->setClipping(true);
++
++ if (m_pointsVisible && simpleDraw && m_series->lightMarker().isNull()) {
++ for (int i = 0; i < m_points.size(); ++i)
++ painter->drawEllipse(m_points.at(i), m_markerSize, m_markerSize);
++ } else if (!simpleDraw) {
++ qreal ptSize = m_markerSize;
++ for (int i = 0; i < m_points.size(); ++i) {
++ if (clipRect.contains(m_points.at(i))) {
++ painter->save();
++ ptSize = m_markerSize;
++ bool drawPoint = m_pointsVisible && m_series->lightMarker().isNull();
++ if (m_pointsConfiguration.contains(i)) {
++ const auto &conf = m_pointsConfiguration[i];
++ if (conf.contains(QXYSeries::PointConfiguration::Visibility)) {
++ drawPoint =
++ m_pointsConfiguration[i][QXYSeries::PointConfiguration::Visibility]
++ .toBool();
++ }
++
++ if (drawPoint) {
++ if (conf.contains(QXYSeries::PointConfiguration::Size)) {
++ ptSize = m_pointsConfiguration[i][QXYSeries::PointConfiguration::Size]
++ .toReal();
++ }
++
++ if (conf.contains(QXYSeries::PointConfiguration::Color)) {
++ painter->setBrush(
++ m_pointsConfiguration[i][QXYSeries::PointConfiguration::Color]
++ .value<QColor>());
++ }
++ }
++ }
++
++ if (m_series->isPointSelected(i)) {
++ // Selected points are drawn regardless of m_pointsVisible settings and
++ // custom point configuration. However, they are not drawn if light markers
++ // are used. The reason of this is to avoid displaying selected point
++ // over selected light marker.
++ drawPoint = m_series->selectedLightMarker().isNull();
++ ptSize = ptSize * 1.5;
++ if (m_selectedColor.isValid())
++ painter->setBrush(m_selectedColor);
++ }
++
++ if (drawPoint)
++ painter->drawEllipse(m_points.at(i), ptSize, ptSize);
++ painter->restore();
++ }
++ }
++ }
++ }
++ painter->restore();
++ }
++
++ void SplineChartItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
++ {
++ QPointF matchedP = matchForLightMarker(event->pos());
++ if (!qIsNaN(matchedP.x()))
++ emit XYChart::pressed(matchedP);
++ else
++ emit XYChart::pressed(domain()->calculateDomainPoint(event->pos()));
++
++ m_lastMousePos = event->pos();
++ m_mousePressed = true;
++ QGraphicsItem::mousePressEvent(event);
++ }
++
++ void SplineChartItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
++ {
++ // Identical code in LineChartItem
++ const QPointF matchedP = hoverPoint(event->pos());
++ m_lastHoveredMatchedPos = matchedP;
++ emit XYChart::hovered(matchedP, true);
++
++ QGraphicsItem::hoverEnterEvent(event);
++ }
++
++ void SplineChartItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
++ {
++ const QPointF matchedP = hoverPoint(event->pos());
++ if (!fuzzyComparePointF(matchedP, m_lastHoveredMatchedPos)) {
++ emit XYChart::hovered(matchedP, true);
++ m_lastHoveredMatchedPos = matchedP;
++ }
++
++ QGraphicsItem::hoverMoveEvent(event);
++ }
++
++ void SplineChartItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
++ {
++ const QPointF matchedP = hoverPoint(event->pos());
++ emit XYChart::hovered(matchedP, false);
++ m_lastHoveredMatchedPos = {qQNaN(), qQNaN()};
++
++ QGraphicsItem::hoverLeaveEvent(event);
++ }
++
++ void SplineChartItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
++ {
++ QPointF result;
++ QPointF matchedP = matchForLightMarker(m_lastMousePos);
++ if (!qIsNaN(matchedP.x()))
++ result = matchedP;
++ else
++ result = domain()->calculateDomainPoint(m_lastMousePos);
++
++ emit XYChart::released(result);
++ if (m_mousePressed)
++ emit XYChart::clicked(result);
++ m_mousePressed = false;
++ QGraphicsItem::mouseReleaseEvent(event);
++ }
++
++ void SplineChartItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
++ {
++ QPointF matchedP = matchForLightMarker(event->pos());
++ if (!qIsNaN(matchedP.x()))
++ emit XYChart::doubleClicked(matchedP);
++ else
++ emit XYChart::doubleClicked(domain()->calculateDomainPoint(m_lastMousePos));
++
++ QGraphicsItem::mouseDoubleClickEvent(event);
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_splinechartitem_p.cpp"