diff options
Diffstat (limited to 'examples/charts/chartsgallery/scatterwidget.cpp')
-rw-r--r-- | examples/charts/chartsgallery/scatterwidget.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/examples/charts/chartsgallery/scatterwidget.cpp b/examples/charts/chartsgallery/scatterwidget.cpp new file mode 100644 index 00000000..413a090b --- /dev/null +++ b/examples/charts/chartsgallery/scatterwidget.cpp @@ -0,0 +1,84 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only + +#include "scatterwidget.h" + +#include <QChart> +#include <QLegendMarker> +#include <QImage> +#include <QPainter> +#include <QScatterSeries> +#include <QtMath> + +ScatterWidget::ScatterWidget(QWidget *parent) + : ContentWidget(parent) +{ + //![1] + auto series0 = new QScatterSeries; + series0->setName("scatter1"); + series0->setMarkerShape(QScatterSeries::MarkerShapeCircle); + series0->setMarkerSize(15.0); + + auto series1 = new QScatterSeries; + series1->setName("scatter2"); + series1->setMarkerShape(QScatterSeries::MarkerShapeRectangle); + series1->setMarkerSize(20.0); + + auto series2 = new QScatterSeries; + series2->setName("scatter3"); + series2->setMarkerShape(QScatterSeries::MarkerShapeRectangle); + series2->setMarkerSize(30.0); + //![1] + + //![2] + series0->append(0, 6); + series0->append(2, 4); + series0->append(3, 8); + series0->append(7, 4); + series0->append(10, 5); + + *series1 << QPointF(1, 1) << QPointF(3, 3) << QPointF(7, 6) << QPointF(8, 3) << QPointF(10, 2); + *series2 << QPointF(1, 5) << QPointF(4, 6) << QPointF(6, 3) << QPointF(9, 5); + //![2] + + //![3] + QPainterPath starPath; + starPath.moveTo(28, 15); + for (int i = 1; i < 5; ++i) { + starPath.lineTo(14 + 14 * qCos(0.8 * i * M_PI), + 15 + 14 * qSin(0.8 * i * M_PI)); + } + starPath.closeSubpath(); + + QImage star(30, 30, QImage::Format_ARGB32); + star.fill(Qt::transparent); + + QPainter painter(&star); + painter.setRenderHint(QPainter::Antialiasing); + painter.setPen(QRgb(0xf6a625)); + painter.setBrush(painter.pen().color()); + painter.drawPath(starPath); + + series2->setBrush(star); + series2->setPen(QColor(Qt::transparent)); + //![3] + + //![4] + auto chart = new QChart; + chart->addSeries(series0); + chart->addSeries(series1); + chart->addSeries(series2); + + chart->setTitle("Simple Scatter Chart"); + chart->createDefaultAxes(); + chart->setDropShadowEnabled(false); + //![4] + + //![5] + chart->legend()->setMarkerShape(QLegend::MarkerShapeFromSeries); + //![5] + + //![6] + createDefaultChartView(chart); + //![6] +} |