To ease the migration from github.com/golang/freetype/truetype to golang.org/x/image/font/sfnt, it would be valuable to have font/sfnt provide a type that implements font.Face on top of the sfnt facilities.
with https://golang.org/cl/67330 it seems possible to implement most of the font.Face interface.
truetype does it via NewFace.
I'd propose to do the same with a new sfnt.NewFace function:
// NewFace returns a new font.Face for the given Font.
func NewFace(f *Font) font.Face { ... }
@nigeltao what do you think ?
sbinet
All 13 comments
There totally needs to be a font.Face implementation somewhere under golang.org/x/image/sfnt, either using or being part of golang.org/x/image/font/sfnt. I just haven't had the time to do it myself.
I was thinking it would be a separate package, perhaps golang.org/x/image/font/opentype, so that people could import just the sfnt package if they wanted e.g. metrics and layout without having to pull in all of the rasterization code. But I haven't given a lot of thought to it.
nigeltao
on 27 Oct 2017
I have mailed what I got so far: https://go-review.googlesource.com/#/c/image/+/73870
(I can of course put all the current font.Face implementation under this new font/opentype package)
sbinet
on 27 Oct 2017
Change https://golang.org/cl/73870 mentions this issue: font/sfnt: implement font.Face interface
gopherbot
on 27 Oct 2017
What's up on this issue? Thank you!
hajimehoshi
on 9 Feb 2018
That's for @sbinet to answer. I don't have any time to work on this myself.
nigeltao
on 9 Feb 2018
CL-73870 didn't close this issue as the Glyph and GlyphBounds methods are left basically unimplemented.
I did try a bit to see how one would go with implementing them but I quickly reached my level of incompetence. (sorry.)
happy to get some more insights on how I would go about implementing those. (or encourage a new champion to do that)
sbinet
on 13 Feb 2018
Change https://golang.org/cl/170578 mentions this issue: font/opentype: implement Glyph and GlyphBounds
gopherbot
on 3 Apr 2019
Hi, what's going on this?
hajimehoshi
on 15 Jan 2020
I can't speak for others, but for myself, I'll repeat what I've said before: I'd like to see this happen, but I don't have any time to work on this myself.
nigeltao
on 19 Jan 2020
See also https://go-review.googlesource.com/c/image/+/170578 "font/opentype: implement Glyph and GlyphBounds" which is incomplete and abandoned, but might be educational for anyone who wants to tackle this themselves.
nigeltao
on 19 Jan 2020
Change https://golang.org/cl/217817 mentions this issue: image/font: implement Glyph and GlyphBounds
gopherbot
on 5 Feb 2020
Change https://golang.org/cl/240897 mentions this issue: x/image/font: Implement font Face in the opentype package.
gopherbot
on 3 Jul 2020
Change https://golang.org/cl/255237 mentions this issue: font/opentype: implement Glyph and GlyphBounds
gopherbot
on 16 Sep 2020
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Most helpful comment
Change https://golang.org/cl/240897 mentions this issue:
x/image/font: Implement font Face in the opentype package.