Module: Origami::StandardObject

Included in:
Action, Action::GoToE::EmbeddedTarget, Action::Launch::WindowsLaunchParams, Action::RichMediaExecute::Command, Adobe::PPKLite::AddressList, Adobe::PPKLite::Catalog, Adobe::PPKLite::Certificate, Adobe::PPKLite::PPK, Adobe::PPKLite::User, Adobe::PPKLite::UserList, AnimationStyle3D, Annotation, Annotation::AdditionalActions, Annotation::AppearanceCharacteristics, Annotation::AppearanceDictionary, Annotation::Artwork3D::Activation, Annotation::BorderStyle, Annotation::RichMedia::Activation, Annotation::RichMedia::Animation, Annotation::RichMedia::Configuration, Annotation::RichMedia::Content, Annotation::RichMedia::CuePoint, Annotation::RichMedia::Deactivation, Annotation::RichMedia::Instance, Annotation::RichMedia::Parameters, Annotation::RichMedia::Position, Annotation::RichMedia::Presentation, Annotation::RichMedia::Settings, Annotation::RichMedia::Window, Background3D, Catalog, CatalogAdditionalActions, CrossSection3D, DeveloperExtension, EmbeddedFileParameters, EmbeddedFileStream, Encoding, Encryption::CryptFilterDictionary, Encryption::EncryptionDictionary, Extensions, Field::AdditionalActions, Field::CertificateSeedValue, Field::SignatureLock, Field::SignatureSeedValue, Field::Subform, FileSpec, Filter::CCITTFax::DecodeParms, Filter::Crypt::DecodeParms, Filter::DCT::DecodeParms, Filter::Flate::DecodeParms, Filter::JBIG2::DecodeParms, Filter::LZW::DecodeParms, Font, FontDescriptor, Function::Exponential, Function::Stitching, Graphics::ExtGState, Graphics::Pattern::Shading, Graphics::Pattern::Shading::Axial, Graphics::Pattern::Shading::FunctionBased, Graphics::Pattern::Shading::Radial, Graphics::ReferenceDictionary, InteractiveForm, LightingScheme3D, Linearization, Metadata, MetadataStream, NameTreeNode, Names, NavigationNode, Node3D, Outline, OutlineItem, OutputIntent, Page, PageAdditionalActions, PageTreeNode, Perms, Projection3D, Reference3D, RenderMode3D, Requirement, Requirement::Handler, Resources, Origami::Signature::BuildData, Origami::Signature::BuildProperties, Origami::Signature::DigitalSignature, Origami::Signature::Reference, Stream, Trailer, U3DStream, UsageRights::TransformParams, View3D, ViewerPreferences, Webcapture::Command, Webcapture::CommandSettings, Webcapture::SourceInformation, Webcapture::SpiderInfo, XRefStream
Defined in:
lib/origami/object.rb

Overview

Mixin’ module for objects which can store their options into an inner Dictionary.

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

DEFAULT_ATTRIBUTES =

:nodoc:

{ :Type => Object, :Version => "1.2" }

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(receiver) ⇒ Object

:nodoc:



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# File 'lib/origami/object.rb', line 107

def self.included(receiver) #:nodoc:
  receiver.instance_variable_set(:@fields, Hash.new(DEFAULT_ATTRIBUTES))
  receiver.extend(ClassMethods)
end

Instance Method Details

#do_type_check ⇒ Object

:nodoc:



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# File 'lib/origami/object.rb', line 216

def do_type_check #:nodoc:
  self.class.fields.each_pair do |field, attributes|
    
    if not self[field].nil? and not attributes[:Type].nil?
      types = attributes[:Type].is_a?(::Array) ? attributes[:Type] : [ attributes[:Type] ]
      if not self[field].is_a?(Reference) and types.all? {|type| not self[field].is_a?(type.native_type)}
        puts "Warning: in object #{self.class}, field `#{field.to_s}' has unexpected type #{self[field].class}" 
      end
    end
  end
end

#has_field?(field) ⇒ Boolean

Check if an attribute is set in the current Object.

attr

The attribute name.

Returns:



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# File 'lib/origami/object.rb', line 177

def has_field? (field)
  not self[field].nil?
end

#pdf_version_required ⇒ Object

Returns the version and level required by the current Object.



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# File 'lib/origami/object.rb', line 184

def pdf_version_required #:nodoc:
  max = [ 1.0, 0 ]
  
  self.each_key do |field|
    attributes = self.class.fields[field.value]

    current_version = attributes.has_key?(:Version) ? attributes[:Version].to_f : 0
    current_level = attributes[:ExtensionLevel] || 0
    current = [ current_version, current_level ]

    max = current if (current <=> max) > 0

    sub = self[field.value].pdf_version_required
    max = sub if (sub <=> max) > 0
  end
  
  max
end

#pre_build ⇒ Object

:nodoc:



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# File 'lib/origami/object.rb', line 165

def pre_build #:nodoc:
 
 set_default_values
 do_type_check if Origami::OPTIONS[:enable_type_checking] == true
 
 super
end

#set_default_value(field) ⇒ Object

:nodoc:



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# File 'lib/origami/object.rb', line 203

def set_default_value(field) #:nodoc:
  if self.class.fields[field][:Default]
    self[field] = self.class.fields[field][:Default]
    self[field].pre_build
  end
end

#set_default_values ⇒ Object

:nodoc:



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# File 'lib/origami/object.rb', line 210

def set_default_values #:nodoc:
  self.class.required_fields.each do |field| 
    set_default_value(field) unless has_field?(field) 
  end
end