Class: Barby::PrawnOutputter

Inherits:
Outputter show all
Defined in:
lib/barby/outputter/prawn_outputter.rb

Instance Attribute Summary

Attributes inherited from Outputter

#barcode

Instance Method Summary collapse

Methods inherited from Outputter

#initialize, register

Constructor Details

This class inherits a constructor from Barby::Outputter

Instance Method Details

#annotate_pdf(pdf, opts = {}) ⇒ Object 



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# File 'lib/barby/outputter/prawn_outputter.rb', line 17

def annotate_pdf(pdf, opts={})
  opts = options(opts)
  xpos, ypos, height, xdim = opts[:x], opts[:y], opts[:height], opts[:xdim]
  ydim = opts[:ydim] || xdim
  orig_xpos = xpos

  if barcode.two_dimensional?
    boolean_groups.reverse_each do |groups|
      groups.each do |bar,amount|
        if bar
          pdf.move_to(xpos, ypos)
          pdf.line_to(xpos, ypos+ydim)
          pdf.line_to(xpos+(xdim*amount), ypos+ydim)
          pdf.line_to(xpos+(xdim*amount), ypos)
          pdf.line_to(xpos, ypos)
          pdf.fill
        end
        xpos += (xdim*amount)
      end
      xpos = orig_xpos
      ypos += ydim
    end
  else
    boolean_groups.each do |bar,amount|
      if bar
        pdf.move_to(xpos, ypos)
        pdf.line_to(xpos, ypos+height)
        pdf.line_to(xpos+(xdim*amount), ypos+height)
        pdf.line_to(xpos+(xdim*amount), ypos)
        pdf.line_to(xpos, ypos)
        pdf.fill
      end
      xpos += (xdim*amount)
    end
  end

  pdf
end

#to_pdf(opts = {}) ⇒ Object 



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# File 'lib/barby/outputter/prawn_outputter.rb', line 11

def to_pdf(opts={})
  opts = options(opts)
  annotate_pdf(Prawn::Document.new(opts[:document]), opts).render
end