func main() {
flag.Parse()
fmt.Printf("Loading fontfile %q\n", *fontfile)
b, err := ioutil.ReadFile(*fontfile)
if err != nil {
log.Println(err)
return
}
font, err := truetype.Parse(b)
if err != nil {
log.Println(err)
return
}
fupe := font.FUnitsPerEm()
printBounds(font.Bounds(fupe))
fmt.Printf("FUnitsPerEm:%d\n\n", fupe)
c0, c1 := 'A', 'V'
i0 := font.Index(c0)
hm := font.HMetric(fupe, i0)
g := truetype.NewGlyphBuf()
err = g.Load(font, fupe, i0, nil)
if err != nil {
log.Println(err)
return
}
fmt.Printf("'%c' glyph\n", c0)
fmt.Printf("AdvanceWidth:%d LeftSideBearing:%d\n", hm.AdvanceWidth, hm.LeftSideBearing)
printGlyph(g)
i1 := font.Index(c1)
fmt.Printf("\n'%c', '%c' Kerning:%d\n", c0, c1, font.Kerning(fupe, i0, i1))
}
// NewContext creates a new Context.
func NewContext() *Context {
return &Context{
r: raster.NewRasterizer(0, 0),
glyphBuf: truetype.NewGlyphBuf(),
fontSize: 12,
dpi: 72,
scale: 12 << 6,
}
}