class HexaPDF::Font::Encoding::DifferenceEncoding
The difference encoding uses a base encoding that can be overlayed with additional mappings.
See: PDF1.7 s9.6.6.1
Attributes
base_encoding[R]
The base encoding.
Public Class Methods
new(base_encoding)
click to toggle source
Initializes the Differences object with the given base encoding object.
Calls superclass method
HexaPDF::Font::Encoding::Base::new
# File lib/hexapdf/font/encoding/difference_encoding.rb, line 51 def initialize(base_encoding) super() @base_encoding = base_encoding end
Public Instance Methods
code(name)
click to toggle source
Returns the code for the given glyph name, either from this object, if a code references the name, or from the base encoding.
# File lib/hexapdf/font/encoding/difference_encoding.rb, line 64 def code(name) code_to_name.key(name) || base_encoding.code(name) end
name(code)
click to toggle source
Returns the name for the given code, either from this object, if it contains the code, or from the base encoding.
# File lib/hexapdf/font/encoding/difference_encoding.rb, line 58 def name(code) code_to_name[code] || base_encoding.name(code) end