gistfile1.rb

#!/usr/bin/env ruby

require 'prawn'

class String
  def self.street_num_first
    self.match(/(\D+)(\d+)(\s.{2,}$)?(\s\D{1}$)?/) do
      street = $1 if $1 # => "Test Drive "
      num    = $2 if $2 # => "1234"
      suite  = $3 if $3 # => "#A"
      abbr   = $4 if $4 # => "N"

      "#{num} #{abbr} #{street}#{suite}".squeeze(' ').strip
    end
  end
end

class Postcard
    
  def initialize data
    @address, @price, @desc = File.read(data).split("\n")[0..2]
    
    # photo dimensions: 938px x 1275px
    @photo = Dir["images/*"].select { |p| p.match(data.split("/").last) }
  end
  
  def path_to_output
    "/Users/Jacob/Desktop/#{@address}.pdf"
  end
  
  def options
    { :template      => "template.pdf", 
      :left_margin   => 0, 
      :bottom_margin => 62 }
  end
  
  def generate
    Prawn::Document.new(options) do
      font_families.update(
        "Georgia" => { :normal => "/Library/Fonts/Georgia.ttf",
                       :bold   => "/Library/Fonts/Georgia Bold.ttf",
                       :italic => "/Library/Fonts/Georgia Italic.ttf" })

      image @photo, 
        :at    => [0, 244],
        :width => 225.1

      bounding_box([244,148], :width => 177) do
        # address
        font "Georgia"
        fill_color "ffffff"
        text @address.street_num_first, 
          :size    => 10, 
          :leading => 4

        # price
        font "Georgia", :style => :bold
        text @price, :size => 10

        # just sold
        fill_color "e3d17c"
        draw_text "JUST SOLD!", 
          :size => 10, 
          :at   => [(width_of(@price, :size => 10) + 3), 1.75]

        move_down 10

        # description
        font "Georgia"
        fill_color "ffffff"
        text @desc, 
          :leading  => 4, 
          :size     => 10, 
          :overflow => :shrink_to_fit
      end
    end.render_file(path_to_output)
  end
    
end