Module: Kramdown::Converter::Pdf::PrawnDocumentExtension

Defined in:
lib/kramdown/converter/pdf.rb

Overview

This module gets mixed into the Prawn::Document instance.

Defined Under Namespace

Modules: CustomBox

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#converter ⇒ Object

Access the converter instance from within Prawn



477
478
479
 
# File 'lib/kramdown/converter/pdf.rb', line 477

def converter
  @converter
end

Instance Method Details

#embed_image(pdf_obj, info, options) ⇒ Object

Override image embedding method for adding image positions to #image_floats.



484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
 
# File 'lib/kramdown/converter/pdf.rb', line 484

def embed_image(pdf_obj, info, options)
  # find where the image will be placed and how big it will be
  w,h = info.calc_image_dimensions(options)

  if options[:at]
    x,y = map_to_absolute(options[:at])
  else
    x,y = image_position(w,h,options)
    move_text_position h
  end

  #--> This part is new
  if options[:position] == :right
    image_floats << [page_number, x - 15, y, w + 15, h + 15]
  end

  # add a reference to the image object to the current page
  # resource list and give it a label
  label = "I#{next_image_id}"
  state.page.xobjects.merge!(label => pdf_obj)

  # add the image to the current page
  instruct = "\nq\n%.3f 0 0 %.3f %.3f %.3f cm\n/%s Do\nQ"
  add_content instruct % [ w, h, x, y - h, label ]
end

#image_floats ⇒ Object 



479
480
481
 
# File 'lib/kramdown/converter/pdf.rb', line 479

def image_floats
  @image_floats ||= []
end