TTFunk::Table::Cmap::Format06

Attributes

code_map[R]
language[R]

Public Class Methods

encode(charmap) click to toggle source
# File lib/ttfunk/table/cmap/format06.rb, line 9
def self.encode(charmap)
  next_id = 0 
  glyph_map = { 0 => 0 }

  sorted_chars = charmap.keys.sort
  low_char, high_char = sorted_chars.first, sorted_chars.last
  entry_count = (1+high_char-low_char)
  glyph_indexes = Array.new(entry_count, 0)

  new_map = charmap.keys.sort.inject({}) do |map, code|
    glyph_map[charmap[code]] ||= next_id += 1
    map[code] = { :old => charmap[code], :new => glyph_map[charmap[code]] }
    glyph_indexes[code - low_char] = glyph_map[charmap[code]]
    map
  end

  subtable = [6, 10+entry_count*2, 0, low_char, entry_count, *glyph_indexes].pack('n*')

  { :charmap => new_map, :subtable => subtable, :max_glyph_id => next_id+1 }
end

Public Instance Methods

[](code) click to toggle source
# File lib/ttfunk/table/cmap/format06.rb, line 30
def [](code)
  @code_map[code] || 0
end
supported?() click to toggle source
# File lib/ttfunk/table/cmap/format06.rb, line 34
def supported?
  true
end

[Validate]

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