mirror of
https://github.com/foliojs/pdfkit.git
synced 2025-12-08 20:15:54 +00:00
69 lines
2.2 KiB
CoffeeScript
69 lines
2.2 KiB
CoffeeScript
fs = require 'fs'
|
|
Data = require '../data'
|
|
DFont = require './dfont'
|
|
Directory = require './directory'
|
|
|
|
NameTable = require './tables/name'
|
|
HeadTable = require './tables/head'
|
|
CmapTable = require './tables/cmap'
|
|
HmtxTable = require './tables/hmtx'
|
|
HheaTable = require './tables/hhea'
|
|
MaxpTable = require './tables/maxp'
|
|
PostTable = require './tables/post'
|
|
OS2Table = require './tables/os2'
|
|
LocaTable = require './tables/loca'
|
|
GlyfTable = require './tables/glyf'
|
|
|
|
class TTFFont
|
|
@open: (filename, name) ->
|
|
contents = fs.readFileSync filename
|
|
new TTFFont(contents, name)
|
|
|
|
@fromDFont: (filename, family) ->
|
|
dfont = DFont.open(filename)
|
|
new TTFFont dfont.getNamedFont(family)
|
|
|
|
constructor: (@rawData, name) ->
|
|
data = @contents = new Data(rawData)
|
|
|
|
if data.readString(4) is 'ttcf'
|
|
throw new Error "Must specify a font name for TTC files." if not name
|
|
|
|
# This is a TrueType Collection
|
|
version = data.readInt()
|
|
numFonts = data.readInt()
|
|
offsets = []
|
|
for i in [0...numFonts]
|
|
offsets[i] = data.readInt()
|
|
|
|
for offset, i in offsets
|
|
data.pos = offset
|
|
@parse()
|
|
|
|
return if @name.postscriptName is name
|
|
|
|
throw new Error "Font #{name} not found in TTC file."
|
|
|
|
else
|
|
data.pos = 0
|
|
@parse()
|
|
|
|
parse: ->
|
|
@directory = new Directory(@contents)
|
|
@head = new HeadTable(this)
|
|
@name = new NameTable(this)
|
|
@cmap = new CmapTable(this)
|
|
@hhea = new HheaTable(this)
|
|
@maxp = new MaxpTable(this)
|
|
@hmtx = new HmtxTable(this)
|
|
@post = new PostTable(this)
|
|
@os2 = new OS2Table(this)
|
|
@loca = new LocaTable(this)
|
|
@glyf = new GlyfTable(this)
|
|
|
|
@ascender = (@os2.exists and @os2.ascender) or @hhea.ascender
|
|
@decender = (@os2.exists and @os2.decender) or @hhea.decender
|
|
@lineGap = (@os2.exists and @os2.lineGap) or @hhea.lineGap
|
|
@bbox = [@head.xMin, @head.yMin, @head.xMax, @head.yMax]
|
|
|
|
module.exports = TTFFont |