1 files changed, 57 insertions, 0 deletions
diff --git a/examples/charts/chartsgallery/dynamicsplinewidget.cpp b/examples/charts/chartsgallery/dynamicsplinewidget.cpp
new file mode 100644
index 00000000..fce79d79
--- /dev/null
+++ b/examples/charts/chartsgallery/dynamicsplinewidget.cpp
@@ -0,0 +1,57 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "dynamicsplinewidget.h"
+
+#include <QChart>
+#include <QChartView>
+#include <QRandomGenerator>
+#include <QSplineSeries>
+#include <QValueAxis>
+
+DynamicSplineWidget::DynamicSplineWidget(QWidget *parent)
+    : ContentWidget(parent)
+{
+    auto chart = new QChart;
+    chart->setTitle("Dynamic Spline Chart");
+    chart->legend()->hide();
+    chart->setAnimationOptions(QChart::AllAnimations);
+
+    m_axisX = new QValueAxis;
+    m_axisY = new QValueAxis;
+
+    QObject::connect(&m_timer, &QTimer::timeout, this, &DynamicSplineWidget::handleTimeout);
+    m_timer.setInterval(1000);
+
+    m_series = new QSplineSeries;
+    QPen green(Qt::red);
+    green.setWidth(3);
+    m_series->setPen(green);
+    m_series->append(m_x, m_y);
+
+    chart->addSeries(m_series);
+
+    chart->addAxis(m_axisX,Qt::AlignBottom);
+    chart->addAxis(m_axisY,Qt::AlignLeft);
+    m_series->attachAxis(m_axisX);
+    m_series->attachAxis(m_axisY);
+    m_axisX->setTickCount(5);
+    m_axisX->setRange(0, 10);
+    m_axisY->setRange(-5, 10);
+
+    createDefaultChartView(chart);
+
+    m_timer.start();
+}
+
+void DynamicSplineWidget::handleTimeout()
+{
+    qreal x = defaultChartView()->chart()->plotArea().width() / m_axisX->tickCount();
+    qreal y = (m_axisX->max() - m_axisX->min()) / m_axisX->tickCount();
+    m_x += y;
+    m_y = QRandomGenerator::global()->bounded(5) - 2.5;
+    m_series->append(m_x, m_y);
+    defaultChartView()->chart()->scroll(x, 0);
+    if (m_x >= 100)
+        m_timer.stop();
+}