Sha256: 9348f0d8c6c12c433029387928784a224581c078f3021f5cd3470b0d48e37832
Contents?: true
Size: 1.33 KB
Versions: 4
Compression:
Stored size: 1.33 KB
Contents
module TTFunk
class Table
class Cmap
module Format06
attr_reader :language
attr_reader :code_map
def self.encode(charmap)
next_id = 0
glyph_map = { 0 => 0 }
sorted_chars = charmap.keys.sort
low_char = sorted_chars.first
high_char = sorted_chars.last
entry_count = 1 + high_char - low_char
glyph_indexes = Array.new(entry_count, 0)
new_map = charmap.keys.sort.each_with_object({}) do |code, map|
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]]
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
def [](code)
@code_map[code] || 0
end
def supported?
true
end
private
def parse_cmap!
@language, firstcode, entrycount = read(8, 'x2nnn')
@code_map = {}
(firstcode...(firstcode + entrycount)).each do |code|
@code_map[code] = read(2, 'n').first & 0xFFFF
end
end
end
end
end
end
Version data entries
4 entries across 3 versions & 2 rubygems