Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-12-02 01:48:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
28f8d7953e
gecko-dev/gfx/graphite2
History
Sylvestre Ledru 9bfe27d903 Bug 1394734 - Replace CONFIG['GNU_C*'] by CONFIG['CC_TYPE'] r=glandium 
MozReview-Commit-ID: 7duJk2gSd4m

--HG--
extra : rebase_source : 7312fe276e561e8c034a5f6749774ae812727f9c
2017-12-07 22:09:15 +01:00
..
include/graphite2
src Bug 1394734 - Replace CONFIG['GNU_C*'] by CONFIG['CC_TYPE'] r=glandium 2017-12-07 22:09:15 +01:00
ChangeLog
COPYING
LICENSE
moz-gr-update.sh
README.md
README.mozilla

README.md

Graphite engine

What is Graphite?

Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways.

Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script.

Examples of complex script behaviors Graphite can handle include:

  • contextual shaping
  • ligatures
  • reordering
  • split glyphs
  • bidirectionality
  • stacking diacritics
  • complex positioning
  • shape aware kerning
  • automatic diacritic collision avoidance

See examples of scripts with complex rendering.

Graphite system overview

The Graphite system consists of:

  • A rule-based programming language Graphite Description Language (GDL) that can be used to describe the behavior of a writing system
  • A compiler for that language
  • A rendering engine that can serve as the layout component of a text-processing application

Graphite renders TrueType fonts that have been extended by means of compiling a GDL program.

Further technical information is available on the Graphite technical overview page.