Method: HexaPDF::Type::Annotation#create_appearance

Defined in:
lib/hexapdf/type/annotation.rb

#create_appearance(type: :normal, state_name: ) ⇒ Object

Creates an empty appearance stream (a Form XObject) of the given type (:normal, :rollover, or :down) and returns it. If an appearance stream already exist, it is overwritten.

If there can be multiple appearance streams for the annotation, use the state_name argument to provide the appearance state name.



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# File 'lib/hexapdf/type/annotation.rb', line 266

def create_appearance(type: :normal, state_name: self[:AS])
  xobject = document.add({Type: :XObject, Subtype: :Form,
                          BBox: [0, 0, self[:Rect].width, self[:Rect].height]})
  self[:AP] ||= {}
  appearance_dict.set_appearance(xobject, type: type, state_name: state_name)
  xobject
end