Qt 實現保存QChart 圖表為svg格式矢量圖文件

pro文件 
QT += svg

保存方法
void YJQCharView::SaveChartViewSvg()

{

    QString filePath = QFileDialog::getSaveFileName(this, "Save SVG","", "SVG files (*.svg)");

    if (filePath == "")

        return;

    QSvgGenerator generator;

    generator.setFileName(filePath);

    generator.setSize(QSize(this->width(), this->height()));

    generator.setViewBox(QRect(0, 0, this->width(), this->height()));

    generator.setTitle("SVG Example");

    generator.setDescription("This SVG file is generated by Qt.");

    QPainter painter;

    painter.begin(&generator);

    m_ChartView.data()->render(&painter);

    painter.end();

}