def initialize(path, horizontal_metrics)
@path = path
@horizontal_metrics = horizontal_metrics
@x_min = 0
@y_min = 0
@x_max = horizontal_metrics.advance_width
@y_max = 0
path.commands.each do |command|
cmd, x, y = command
next if cmd == :close
@x_min = x if x < @x_min
@x_max = x if x > @x_max
@y_min = y if y < @y_min
@y_max = y if y > @y_max
end
@left_side_bearing = horizontal_metrics.left_side_bearing
@right_side_bearing =
horizontal_metrics.advance_width -
@left_side_bearing -
(@x_max - @x_min)
end