How to underline and strikethrough fonts？

[haoxurt]

How to underline and strikethrough fonts? Could you indicate me which function or class I can refer to?

[HinTak]

These two seem to be part of SkPaint in skia which was removed 7 years ago mono/SkiaSharp#391 . I checked there only one reference to these in current skia-python code, which is in the FontMetrics class. The Font class has a getMetrics method which gets it, but I don't think it supports setting. I.e. it looks like with current skia-python, you can try getting at the metrics of your current font of choice, then draw those lines at the returned positions... though I'd be happy to be corrected if you can set underlinewidth/strikeoutwidth to non-zero and get it to work that way.

In current upstream skia code, it seems that the skparagraph module has a text declaration class and a setter for this. So I'll open a new issue for binding skparagraph if one doesn't exist yet.

[HinTak]

There seems to be a custom typeface builder class which allows one to change the metrics of a supplied typeface.
https://github.com/google/skia/blob/b7ac9da3e5ac34baf5da70b3e37cdbfd898ed54b/include/utils/SkCustomTypeface.h#L34

Skia-python currently doesn't touch that, I think. Though it is designated SK_API, it is also not documented...

[haoxurt]

Thanks. I will close this issue.

[HinTak]

The custom typeface builder class seems stable (SK_API) so we might add that, besides the bigger skparagraph project.