cff

Documentation

Index

• type Font
  • func Parse(file []byte) (*Font, error)
  • func (f *Font) GlyphName(glyph api.GID) string
  • func (f *Font) LoadGlyph(glyph tables.GlyphID) ([]api.Segment, ps.PathBounds, error)

Types

type Font

type Font struct {

	// Charstrings contains the actual glyph definition.
	// It has a length of numGlyphs and is indexed by glyph ID.
	// See `LoadGlyph` for a way to intepret the glyph data.
	Charstrings [][]byte
	// contains filtered or unexported fields
}

Font represents a parsed CFF font.

func Parse

func Parse(file []byte) (*Font, error)

Parse parses a .cff font file. Although CFF enables multiple font or CIDFont programs to be bundled together in a single file, embedded CFF font file in PDF or in TrueType/OpenType fonts shall consist of exactly one font or CIDFont. Thus, this function returns an error if the file contains more than one font.

func (*Font) GlyphName

func (f *Font) GlyphName(glyph api.GID) string

GlyphName returns the name of the glyph or an empty string if not found.

func (*Font) LoadGlyph

func (f *Font) LoadGlyph(glyph tables.GlyphID) ([]api.Segment, ps.PathBounds, error)

LoadGlyph parses the glyph charstring to compute segments and path bounds. It returns an error if the glyph is invalid or if decoding the charstring fails.