Class: Pdfrb::Model::Type::Thumbnail

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

Overview

Thumbnail image stream (ISO 32000-2 §12.3.4). A small image XObject rendered at reduced resolution for use in viewer navigation panels. Attached to a page via the /Thumb key.

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

#bits_per_component ⇒ Object

/BitsPerComponent — required.



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# File 'lib/pdfrb/model/type/thumbnail.rb', line 28

def bits_per_component
  value[:BitsPerComponent]
end

#color_space ⇒ Object

/ColorSpace — required unless /ImageMask true.



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# File 'lib/pdfrb/model/type/thumbnail.rb', line 23

def color_space
  value[:ColorSpace]
end

#dimensions ⇒ Object 



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# File 'lib/pdfrb/model/type/thumbnail.rb', line 37

def dimensions
  [width, height]
end

#filter ⇒ Object

/Filter — optional; a named filter or array of filters.



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# File 'lib/pdfrb/model/type/thumbnail.rb', line 33

def filter
  value[:Filter]
end

#height ⇒ Object

/Height — required.



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# File 'lib/pdfrb/model/type/thumbnail.rb', line 18

def height
  value[:Height]
end

#width ⇒ Object

/Width — required.



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

def width
  value[:Width]
end