aminal/gui/fonts.go

55 lines
1.1 KiB
Go

package gui
import (
"bytes"
"fmt"
"github.com/gobuffalo/packr"
"github.com/liamg/aminal/glfont"
)
func (gui *GUI) getPackedFont(name string) (*glfont.Font, error) {
box := packr.NewBox("./packed-fonts")
fontBytes, err := box.MustBytes(name)
if err != nil {
return nil, fmt.Errorf("Packaged font '%s' could not be read: %s", name, err)
}
font, err := glfont.LoadFont(bytes.NewReader(fontBytes), gui.fontScale, gui.width, gui.height)
if err != nil {
return nil, fmt.Errorf("Font '%s' failed to load: %v", name, err)
}
return font, nil
}
func (gui *GUI) loadFonts() error {
defaultFont, err := gui.getPackedFont("Hack-Regular.ttf")
if err != nil {
return err
}
boldFont, err := gui.getPackedFont("Hack-Bold.ttf")
if err != nil {
return err
}
gui.fontMap = NewFontMap(defaultFont, boldFont)
// add special font usage here
noto, err := gui.getPackedFont("NotoEmoji-Regular.ttf")
if err != nil {
return err
}
// misc symbols, lightning bolt etc.
gui.fontMap.setOverrideRange(0x2600, 0x26FF, noto)
// emoji
gui.fontMap.setOverrideRange(0x1F600, 0x1F64F, noto)
return nil
}