路径描边
“路径描边”示例展示了可用于QPainter 的各种笔型。
Qt 定义了用于处理端点的“端点样式”以及用于连接路径段的“连接样式”。此外，还包含了一套标准的预定义虚线图案，可与QPen 配合使用。
除了QPen 中提供的预定义图案外，我们还演示了如何直接使用QPainterPathStroker 类来定义自定义虚线图案。您可以通过启用“自定义图案”选项来查看此功能。
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