Class: Pdfrb::Model::Type::FunctionPostScript

Inherits:
Cos::Stream show all
Defined in:
lib/pdfrb/model/type/function_postscript.rb

Overview

Type 4 PostScript calculator function (s8.9.6). Carries a PostScript program in the stream payload that computes the output values from input values.

Instance Attribute Summary

Attributes inherited from Cos::Stream

#stream

Attributes inherited from Object

#document, #gen, #oid, #value

Instance Method Summary collapse

Methods inherited from Cos::Stream

#decoded_stream, #encoded_stream=, #initialize

Methods inherited from Cos::Dictionary

#[], #[]=, arlington_available?, arlington_default, arlington_key_to_symbol, arlington_loaded_for?, arlington_mark_loaded, arlington_object, arlington_one_type_to_ruby, arlington_required?, arlington_types_to_ruby, arlington_version, define_field, define_field_from_arlington, #delete, #each, each_field, #each_raw, #empty?, field, #initialize, #key?, #keys, lookup_type, own_fields, #pdf_type, register_type, type_map, #validate

Methods inherited from Object

#==, define_type, #deref, #indirect?, #initialize, #must_be_indirect?, #pdf_type, pdf_type

Constructor Details

This class inherits a constructor from Pdfrb::Model::Cos::Stream

Instance Method Details

#domain ⇒ Object 



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# File 'lib/pdfrb/model/type/function_postscript.rb', line 12

def domain; self[:Domain]; end

#function_type ⇒ Object 



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# File 'lib/pdfrb/model/type/function_postscript.rb', line 10

def function_type; self[:FunctionType] || 4; end

#postscript? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pdfrb/model/type/function_postscript.rb', line 15

def postscript?
  true
end

#program ⇒ Object 



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# File 'lib/pdfrb/model/type/function_postscript.rb', line 19

def program
  decoded_stream&.force_encoding(Encoding::BINARY)
end

#range ⇒ Object 



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# File 'lib/pdfrb/model/type/function_postscript.rb', line 13

def range; self[:Range]; end