Overview ¶
Package opentype implements text layout and shaping for OpenType files.
Index ¶
type Collection ¶
type Collection struct {
// contains filtered or unexported fields
}
Collection is a collection of one or more fonts. When used as a text.Face, each rune will be assigned a glyph from the first font in the collection that supports it.
func ParseCollection ¶
func ParseCollection(src []byte) (*Collection, error)
ParseCollection parses an SFNT font collection, such as TTC or OTC data, from a []byte data source.
If passed data for a single font, a TTF or OTF instead of a TTC or OTC, it will return a collection containing 1 font.
func ParseCollectionReaderAt ¶
func ParseCollectionReaderAt(src io.ReaderAt) (*Collection, error)
ParseCollectionReaderAt parses an SFNT collection, such as TTC or OTC data, from an io.ReaderAt data source.
If passed data for a single font, a TTF or OTF instead of a TTC or OTC, it will return a collection containing 1 font.
func (*Collection) Font ¶
func (c *Collection) Font(i int) (*Font, error)
Font returns the i'th font in the collection.
func (*Collection) Layout ¶
func (c *Collection) Layout(ppem fixed.Int26_6, maxWidth int, txt io.Reader) ([]text.Line, error)
func (*Collection) NumFonts ¶
func (c *Collection) NumFonts() int
NumFonts returns the number of fonts in the collection.
type Font ¶
type Font struct {
// contains filtered or unexported fields
}
Font implements text.Face. It's methods are safe to use concurrently.
func Parse ¶
func Parse(src []byte) (*Font, error)
NewFont parses an SFNT font, such as TTF or OTF data, from a []byte data source.