Sha256: 4159cb772033c3659f8b5dee873acefe26b46139418a44b47946f9206ab94ea9
Contents?: true
Size: 928 Bytes
Versions: 6
Compression:
Stored size: 928 Bytes
Contents
# coding: utf-8
# typed: strict
# frozen_string_literal: true
class PDF::Reader
module WidthCalculator
# Calculates the width of a glyph in a Type One or Type Three
class TypeOneOrThree
def initialize(font)
@font = font
if fd = @font.font_descriptor
@missing_width = fd.missing_width
else
@missing_width = 0
end
end
def glyph_width(code_point)
return 0 if code_point.nil? || code_point < 0
return 0 if @font.widths.nil? || @font.widths.count == 0
# in ruby a negative index is valid, and will go from the end of the array
# which is undesireable in this case.
first_char = @font.first_char
if first_char && first_char <= code_point
@font.widths.fetch(code_point - first_char, @missing_width.to_i).to_f
else
@missing_width.to_f
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems