benoitkugler
commented
1 year ago Hi ! Thank you for the bug report. The issue here is that collections (.ttc) are not yet supported.
@andydotxyz Does Fyne have plans to support them ? From the go-text side, we would simply need to expose the truetype.Load function, which already support collections. However, it requires an (integer) index to select the actual face to use, which in turn probably requires API change on Fyne side.
(This would be the only change required, since, even for collections, truetype.Load returns a (slice of) Face, which are fully compatible with the current typesetting pipeline.)
andydotxyz
whereswaldon
In fyne v2.3.0
2022/12/29 08:56:07 Fyne error: font load error 2022/12/29 08:56:07 Cause: unsupported font format 2022/12/29 08:56:07 At: C:/Users/xxx/go/pkg/mod/fyne.io/fyne/v2@v2.3.0/internal/painter/font.go:150 panic: runtime error: invalid memory address or nil pointer dereference [signal 0xc0000005 code=0x0 addr=0x4ec pc=0xc3bfe0]
goroutine 1 [running, locked to thread]: github.com/benoitkugler/textlayout/fonts/truetype.(Font).Upem(0xc000050000?) C:/Users/xxx/go/pkg/mod/github.com/benoitkugler/textlayout@v0.3.0/fonts/truetype/metrics.go:34 github.com/benoitkugler/textlayout/harfbuzz.NewFont({0x1377778?, 0x0}) C:/Users/xxx/go/pkg/mod/github.com/benoitkugler/textlayout@v0.3.0/harfbuzz/fonts.go:98 +0x9c github.com/go-text/typesetting/shaping.(HarfbuzzShaper).Shape(0xc0016af7e8, {{0xc0003507c8, 0x1, 0x1}, 0x0, 0x1, 0x0, {0x1377778, 0x0}, 0x340, ...}) C:/Users/xxx/go/pkg/mod/github.com/go-text/typesetting@v0.0.0-20221212183139-1eb938670a1f/shaping/shaper.go:77 +0x1d6
Example Code
package main
import ( "fyne.io/fyne/v2" "fyne.io/fyne/v2/app" "fyne.io/fyne/v2/widget" "os" )
func init(){ os.Setenv("FYNE_FONT", "C:\windows\fonts\msyh.ttc") }
func main() { a := app.New() w := a.NewWindow("demo") w.Resize(fyne.Size{300, 200}) w.CenterOnScreen() w.SetContent(widget.NewLabel("Hello World!")) w.ShowAndRun() }