class PDF::Reader::Resources
mixin for common methods in Page
and FormXobjects
Public Class Methods
# File lib/pdf/reader/resources.rb, line 12 def initialize(objects, resources) @objects = objects @resources = resources end
Public Instance Methods
Returns a Hash of color spaces that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 23 def color_spaces @objects.deref_hash!(@resources[:ColorSpace]) || {} end
Returns a Hash of fonts that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 33 def fonts @objects.deref_hash!(@resources[:Font]) || {} end
Returns a Hash of external graphic states that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 44 def graphic_states @objects.deref_hash!(@resources[:ExtGState]) || {} end
Returns a Hash of patterns that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 54 def patterns @objects.deref_hash!(@resources[:Pattern]) || {} end
Returns an Array of procedure sets that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 64 def procedure_sets @objects.deref_array!(@resources[:ProcSet]) || [] end
Returns a Hash of properties sets that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 74 def properties @objects.deref_hash!(@resources[:Properties]) || {} end
Returns a Hash of shadings that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 84 def shadings @objects.deref_hash!(@resources[:Shading]) || {} end
Returns a Hash of XObjects that are available to this page
NOTE: this method de-serialise objects from the underlying PDF
with no caching. You will want to cache the results instead of calling it over and over.
# File lib/pdf/reader/resources.rb, line 94 def xobjects dict = @objects.deref_hash!(@resources[:XObject]) || {} TypeCheck.cast_to_pdf_dict_with_stream_values!(dict) end