将C++ LineSeries传递给QML图表

// LineSeriesDataGenerator.h
#ifndef LINESERIESDATAGENERATOR_H
#define LINESERIESDATAGENERATOR_H

#include <QObject>
#include <QLineSeries>

class LineSeriesDataGenerator : public QObject
{
    Q_OBJECT
public:
    explicit LineSeriesDataGenerator(QObject *parent = nullptr);

    Q_INVOKABLE QLineSeries* generateLineSeries();

signals:
    void lineSeriesGenerated(QLineSeries *lineSeries);

};

#endif // LINESERIESDATAGENERATOR_H

// LineSeriesDataGenerator.cpp
#include "LineSeriesDataGenerator.h"

LineSeriesDataGenerator::LineSeriesDataGenerator(QObject *parent) : QObject(parent)
{

}

QLineSeries* LineSeriesDataGenerator::generateLineSeries()
{
    QLineSeries *lineSeries = new QLineSeries();

    // Generate data for the line series
    // ...

    return lineSeries;
}

import QtQuick 2.0
import QtCharts 2.0

Item {
    width: 400
    height: 300

    ChartView {
        id: chartView
        anchors.fill: parent

        LineSeries {
            id: lineSeries
        }

        Connections {
            target: lineSeriesDataGenerator
            onLineSeriesGenerated: {
                lineSeries.clear(); // Clear existing data
                lineSeries.append(lineSeriesGenerated); // Append new data
            }
        }
    }

    LineSeriesDataGenerator {
        id: lineSeriesDataGenerator
        onLineSeriesGenerated: {
            chartView.update(); // Update the chart view
        }
    }

    Component.onCompleted: {
        lineSeriesDataGenerator.generateLineSeries(); // Generate line series data
    }
}