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#!/usr/bin/ruby
# frozen_string_literal: true
require 'ttfunk'
def character_lookup(file, character)
puts("character : #{character}")
character_code = character.unpack1('U*')
puts("character code: #{character_code}")
glyph_id = file.cmap.unicode.first[character_code]
puts("glyph id : #{glyph_id}")
glyph = file.glyph_outlines.for(glyph_id)
puts(format('glyph type : %s', glyph.class.name.split('::').last.downcase))
puts(format('glyph size : %db', glyph.raw.length))
puts(format('glyph bbox : (%d,%d)-(%d,%d)', glyph.x_min, glyph.y_min, glyph.x_max, glyph.y_max))
if glyph.compound?
puts(format('components : %d %s', glyph.glyph_ids.length, glyph.glyph_ids.inspect))
end
end
file_name = ARGV.first || File.join(__dir__, '../data/fonts/DejaVuSans.ttf')
file_name = ARGV.first || '/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf'
file = TTFunk::File.open(file_name)
puts '-- FONT ------------------------------------'
puts format('revision : %08x', file.header.font_revision)
puts "name : #{file.name.font_name.join(', ')}"
puts "family : #{file.name.font_family.join(', ')}"
puts "subfamily : #{file.name.font_subfamily.join(', ')}"
puts "postscript: #{file.name.postscript_name}"
puts '-- FONT METRICS ----------------------------'
puts "units/em : #{file.header.units_per_em}"
puts "ascent : #{file.ascent}"
puts "descent : #{file.descent}"
puts "line gap : #{file.line_gap}"
puts format('bbox : (%d,%d)-(%d,%d)', *file.bbox)
puts '-- SIMPLE CHARACTER -> GLYPH LOOKUP --------'
character_lookup(file, "\xE2\x98\x9C")
puts '-- COMPOUND CHARACTER -> GLYPH LOOKUP ------'
character_lookup(file, 'ë')
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