// 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,
}
}
//Glyph 字形
func (VC *VerifyCode) Glyph(s rune) (*Glyph, error) {
var (
err error
index truetype.Index
)
truetypeFont := VC.Fonts.Random()
truetypeGlyphBuf := truetype.NewGlyphBuf()
index = truetypeFont.Index(s)
err = truetypeGlyphBuf.Load(truetypeFont, truetypeFont.FUnitsPerEm(), index, VC.hinting())
if err != nil {
return nil, err
}
return &Glyph{
G: truetypeGlyphBuf,
F: truetypeFont,
I: index,
verifyCode: VC,
text: s,
}, nil
}