head.coffee

Table = require '../table'
Data = require '../../data'

class HeadTable extends Table
  tag: 'head'
  parse: (data) ->
    data.pos = @offset
    
    @version = data.readInt()
    @revision = data.readInt()
    @checkSumAdjustment = data.readInt()
    @magicNumber = data.readInt()
    @flags = data.readShort()
    @unitsPerEm = data.readShort()
    @created = data.readLongLong()
    @modified = data.readLongLong()
    
    @xMin = data.readShort()
    @yMin = data.readShort()
    @xMax = data.readShort()
    @yMax = data.readShort()
    @macStyle = data.readShort()
    @lowestRecPPEM = data.readShort()
    @fontDirectionHint = data.readShort()
    @indexToLocFormat = data.readShort()
    @glyphDataFormat = data.readShort()
  
  encode: (loca) ->
    table = new Data
    
    table.writeInt @version
    table.writeInt @revision
    table.writeInt @checkSumAdjustment
    table.writeInt @magicNumber
    table.writeShort @flags
    table.writeShort @unitsPerEm
    table.writeLongLong @created
    table.writeLongLong @modified
    
    table.writeShort @xMin
    table.writeShort @yMin
    table.writeShort @xMax
    table.writeShort @yMax
    table.writeShort @macStyle
    table.writeShort @lowestRecPPEM
    table.writeShort @fontDirectionHint
    table.writeShort loca.type
    table.writeShort @glyphDataFormat
    
    return table.data
    
module.exports = HeadTable