Class: Prawn::Core::Chunk

Inherits:
Object
  • Object
show all
Defined in:
lib/prawn/core/chunk.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(command, params = {}, &action) ⇒ Chunk

Returns a new instance of Chunk.



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# File 'lib/prawn/core/chunk.rb', line 4

def initialize(command, params={}, &action)
   @command      = command 
   @params       = params
   @action       = action
end

Instance Attribute Details

#action ⇒ Object (readonly)

Returns the value of attribute action.



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# File 'lib/prawn/core/chunk.rb', line 10

def action
  @action
end

#command ⇒ Object (readonly)

Returns the value of attribute command.



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# File 'lib/prawn/core/chunk.rb', line 10

def command
  @command
end

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/prawn/core/chunk.rb', line 10

def params
  @params
end

Instance Method Details

#[](attr) ⇒ Object 



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# File 'lib/prawn/core/chunk.rb', line 27

def [](attr)
  @params[attr]
end

#[]=(attr, value) ⇒ Object 



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# File 'lib/prawn/core/chunk.rb', line 31

def []=(attr, value)
  @params[attr] = value
end

#content ⇒ Object 



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# File 'lib/prawn/core/chunk.rb', line 12

def content
  action.call(self)
end

#to_pdf ⇒ Object 



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# File 'lib/prawn/core/chunk.rb', line 16

def to_pdf
  case results = content
  when Array
    results.map { |sub_chunk| sub_chunk.to_pdf }.join("\n")
  when Prawn::Core::Chunk
    results.to_pdf
  else
    results
  end
end