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# frozen_string_literal: true
module TTFunk
class Table
# Compact Font Format (`CFF `) table
class Cff < TTFunk::Table
autoload :Charset, 'ttfunk/table/cff/charset'
autoload :Charsets, 'ttfunk/table/cff/charsets'
autoload :Charstring, 'ttfunk/table/cff/charstring'
autoload :CharstringsIndex, 'ttfunk/table/cff/charstrings_index'
autoload :Dict, 'ttfunk/table/cff/dict'
autoload :Encoding, 'ttfunk/table/cff/encoding'
autoload :Encodings, 'ttfunk/table/cff/encodings'
autoload :FdSelector, 'ttfunk/table/cff/fd_selector'
autoload :FontDict, 'ttfunk/table/cff/font_dict'
autoload :FontIndex, 'ttfunk/table/cff/font_index'
autoload :Header, 'ttfunk/table/cff/header'
autoload :Index, 'ttfunk/table/cff/index'
autoload :OneBasedIndex, 'ttfunk/table/cff/one_based_index'
autoload :Path, 'ttfunk/table/cff/path'
autoload :PrivateDict, 'ttfunk/table/cff/private_dict'
autoload :SubrIndex, 'ttfunk/table/cff/subr_index'
autoload :TopDict, 'ttfunk/table/cff/top_dict'
autoload :TopIndex, 'ttfunk/table/cff/top_index'
# Table tag. The extra space is important.
TAG = 'CFF '
# Table header.
# @return [TTFunk::Table::Cff::Header]
attr_reader :header
# Name index.
# @return [TTFunk::Table::Cff::Index]
attr_reader :name_index
# Top dict index.
# @return [TTFunk::Table::Cff::TopIndex]
attr_reader :top_index
# Strings index.
# @return [TTFunk::Table::Cff::OneBasedIndex]
attr_reader :string_index
# Global subroutine index.
# @return [TTFunk::Table::Cff::SubrIndex]
attr_reader :global_subr_index
# Table tag.
# @return [String]
def tag
TAG
end
# Encode table.
#
# @param subset [TTFunk::Subset::MacRoman, TTFunk::Subset::Windows1252,
# TTFunk::Subset::Unicode, TTFunk::Subset::Unicode8Bit]
# @return [TTFunk::EncodedString]
def encode(subset)
# Make sure TopDict has an entry for encoding so it could be properly replaced
top_index[0][TopDict::OPERATORS[:encoding]] = 0
EncodedString.new do |result|
result.concat(
header.encode,
name_index.encode,
top_index.encode,
string_index.encode,
global_subr_index.encode,
)
charmap = subset.new_cmap_table[:charmap]
top_index[0].finalize(result, charmap)
end
end
private
def parse!
@header = Header.new(file, offset)
@name_index = Index.new(file, @header.table_offset + @header.length)
@top_index = TopIndex.new(file, @name_index.table_offset + @name_index.length)
@string_index = OneBasedIndex.new(file, @top_index.table_offset + @top_index.length)
@global_subr_index = SubrIndex.new(file, @string_index.table_offset + @string_index.length)
end
end
end
end
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