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require 'set'
require 'ttfunk/subset/base'
require 'ttfunk/encoding/mac_roman'
module TTFunk
module Subset
class MacRoman < Base
def initialize(original)
super
@subset = Array.new(256)
end
def to_unicode_map
Encoding::MacRoman::TO_UNICODE
end
def use(character)
@subset[Encoding::MacRoman::FROM_UNICODE[character]] = character
end
def covers?(character)
Encoding::MacRoman.covers?(character)
end
def includes?(character)
code = Encoding::MacRoman::FROM_UNICODE[character]
code && @subset[code]
end
def from_unicode(character)
Encoding::MacRoman::FROM_UNICODE[character]
end
protected
def new_cmap_table(options)
mapping = {}
@subset.each_with_index do |unicode, roman|
mapping[roman] = unicode_cmap[unicode] if roman
end
TTFunk::Table::Cmap.encode(mapping, :mac_roman)
end
def original_glyph_ids
([0] + @subset.map { |unicode| unicode && unicode_cmap[unicode] }).compact.uniq.sort
end
end
end
end
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