Module: Prawn::Document::Internals

Extended by:
Forwardable
Included in:
Prawn::Document
Defined in:
lib/prawn/document/internals.rb

Overview

This module exposes a few low-level PDF features for those who want to extend Prawn’s core functionality. If you are not comfortable with low level PDF functionality as defined by Adobe’s specification, chances are you won’t need anything you find here.

Instance Method Summary collapse

Instance Method Details

#renderer ⇒ PDF::Core::Renderer

Document renderer.

Returns:

  • (PDF::Core::Renderer) 


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# File 'lib/prawn/document/internals.rb', line 71

def renderer
  @renderer ||= PDF::Core::Renderer.new(state)
end

#restore_graphics_state ⇒ void

This method returns an undefined value.

Restore graphic state.



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# File 'lib/prawn/document/internals.rb', line 38

def restore_graphics_state
  restore_transformation_stack
  renderer.restore_graphics_state
end

#save_graphics_state(state = nil) { ... } ⇒ void

This method returns an undefined value.

Save current graphics state.

Yields:

  • Restores graphic state after the block.



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# File 'lib/prawn/document/internals.rb', line 29

def save_graphics_state(state = nil, &block)
  save_transformation_stack
  renderer.save_graphics_state(state, &block)
  restore_transformation_stack if block
end