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require 'ttfunk/table'
module TTFunk
class Table
class Hhea < Table
attr_reader :version
attr_reader :ascent
attr_reader :descent
attr_reader :line_gap
attr_reader :advance_width_max
attr_reader :min_left_side_bearing
attr_reader :min_right_side_bearing
attr_reader :x_max_extent
attr_reader :carot_slope_rise
attr_reader :carot_slope_run
attr_reader :metric_data_format
attr_reader :number_of_metrics
def self.encode(hhea, hmtx)
raw = hhea.raw
raw[-2,2] = [hmtx[:number_of_metrics]].pack("n")
return raw
end
private
def parse!
@version = read(4, "N").first
@ascent, @descent, @line_gap = read_signed(3)
@advance_width_max = read(2, "n").first
@min_left_side_bearing, @min_right_side_bearing, @x_max_extent,
@carot_slope_rise, @carot_slope_run, @caret_offset,
reserved, reserved, reserved, reserved,
@metric_data_format = read_signed(11)
@number_of_metrics = read(2, "n").first
end
end
end
end
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