Expects a hash mapping character codes to glyph ids (where the glyph ids are from the original font). Returns a hash including a new map (:charmap) that maps the characters in charmap to a another hash containing both the old (:old) and new (:new) glyph ids. The returned hash also includes a :subtable key, which contains the encoded subtable for the given charmap.
# File lib/ttfunk/table/cmap/format00.rb, line 18 def self.encode(charmap) next_id = 0 glyph_indexes = Array.new(256, 0) glyph_map = { 0 => 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] = glyph_map[charmap[code]] map end # format, length, language, indices subtable = [0, 262, 0, *glyph_indexes].pack("nnnC*") { :charmap => new_map, :subtable => subtable, :max_glyph_id => next_id+1 } end
# File lib/ttfunk/table/cmap/format00.rb, line 36 def [](code) @code_map[code] || 0 end
# File lib/ttfunk/table/cmap/format00.rb, line 40 def supported? true end