如何使用QT从SVG文件中获取值

#include <QSvgRenderer>
#include <QPainter>

QSvgRenderer renderer;
renderer.load("path/to/svg/file.svg");

QPainter painter;
painter.begin(&paintDevice);

renderer.setViewBox(QRectF(0, 0, width, height));
renderer.setAspectRatioMode(Qt::KeepAspectRatio);
renderer.render(&painter);

QColor color = painter.pen().color();  // 获取当前画笔颜色
QRectF bounds = renderer.boundsOnElement("elementId");  // 获取指定元素的边界框

painter.end();