Print cheques from ruby using Prawn

printcheque.rb

require 'rubygems'
require 'prawn'
require 'prawn/security'
require "prawn/layout"

require 'linguistics'   # For the amount in english  words.  sudo gem install linguistics
Linguistics::use( :en ) # extends Array, String, and Numeric

#
# Quick and a little dirty first pass to be able to print cheques
#
# When I ordered my cheques, I specified Quicken as my software.  The cheques
# I received are perforated into three sections:
# 
#  1) The cheque itself
#  2) The stub sent to the recipient with the cheque.
#  3) And the stub to keep to pass onto the bookkeeper/accountant.
#
# Note, I am not sure it prints all of the required information 
# in the required format/structure.
# 
# Public domain.  Hopefully you find it useful.
#
# Coords are in points (1/72 inch).
# Origin (0,0) is bottom left of the page.
#

Prawn.debug = true

ChequeComponent = Struct.new(:text, :top, :left)
BBox = Struct.new(:top, :width)

def print_cheque(chequenumber, cheque_date,  amount_value, cheque_payee, note)

  date = ChequeComponent.new("#{cheque_date}", (9.3 * 72).to_i, (5.95 * 72).to_i)
  amount = ChequeComponent.new(amount_value, (8.94 * 72).to_i, (6.25 * 72).to_i)

  payee = ChequeComponent.new(cheque_payee, (8.925 * 72).to_i, (0.25 * 72).to_i)
  amount_long = ChequeComponent.new(amount_value.split(".")[0].en.numwords + " " + amount_value.split(".")[1] + " / " + "100 Dollars", (8.375 * 72).to_i, (0.25 * 72).to_i)

  memo = ChequeComponent.new(note, (7.75 * 72).to_i, (0 * 72).to_i)

  perf = BBox.new((6.5 * 72).to_i, (7.5 * 72))
  stub = BBox.new((3 * 72).to_i, (7.5 * 72))

  Prawn::Document.generate("cheque-#{chequenumber}.pdf") do  |pdf|

    pdf.draw_text "DATE " + date.text, :at => [date.left, date.top], :size => 8
    pdf.draw_text payee.text, :at => [payee.left, payee.top], :size => 10

    pdf.draw_text amount.text, :at => [amount.left, amount.top], :size => 10
    pdf.draw_text amount_long.text, :at => [amount_long.left, amount_long.top], :size => 10

    pdf.draw_text "RE " + memo.text, :at => [memo.left, memo.top], :size => 7

    pdf.bounding_box([0, perf.top], :width => perf.width) do
      pdf.text date.text
      pdf.text amount.text
      pdf.text memo.text
    end

    pdf.bounding_box([0, stub.top], :width => stub.width) do
      pdf.text date.text
      pdf.text payee.text
      pdf.text amount.text
      pdf.text memo.text
    end
  end

end