cff

Documentation

Overview

Package cff provides a parser for the CFF font format defined at https://www.adobe.com/content/dam/acom/en/devnet/font/pdfs/5176.CFF.pdf.

Index

• type Font
  • func Load(file fonts.Resource) ([]Font, error)
  • func Parse(file fonts.Resource) (*Font, error)
  • func (f *Font) Cmap() (fonts.Cmap, fonts.CmapEncoding)
  • func (f *Font) GlyphName(glyph fonts.GID) string
  • func (f *Font) LoadGlyph(glyph fonts.GID) (Glyph, error)
  • func (f *Font) LoadSummary() (fonts.FontSummary, error)
  • func (f *Font) NumGlyphs() int
  • func (f *Font) PoscriptName() string
  • func (f *Font) PostscriptInfo() (fonts.PSInfo, bool)
• type Glyph

Types

type Font

type Font struct {
	Encoding   *simpleencodings.Encoding
	FontMatrix []float32

	fonts.PSInfo
	// contains filtered or unexported fields
}

Font represents a parsed CFF font.

func Load

func Load(file fonts.Resource) ([]Font, error)

Load reads standalone .cff font files and may return multiple fonts.

func Parse

func Parse(file fonts.Resource) (*Font, error)

Parse parse 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. See Loader to read standalone .cff files

func (*Font) Cmap

func (f *Font) Cmap() (fonts.Cmap, fonts.CmapEncoding)

func (*Font) GlyphName

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

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

func (*Font) LoadGlyph

func (f *Font) LoadGlyph(glyph fonts.GID) (Glyph, 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.

func (*Font) LoadSummary

func (f *Font) LoadSummary() (fonts.FontSummary, error)

func (*Font) NumGlyphs

func (f *Font) NumGlyphs() int

NumGlyphs returns the number of glyphs in this font. It is also the maximum glyph index + 1.

func (*Font) PoscriptName

func (f *Font) PoscriptName() string

func (*Font) PostscriptInfo

func (f *Font) PostscriptInfo() (fonts.PSInfo, bool)

type Glyph

type Glyph struct {
	Outlines []fonts.Segment
	Width    int
	Bounds   ps.PathBounds
}