bounty.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'RMagick'

class Image
  attr_reader :blob
  
  def initialize(blob)
    @blob = blob
  end
  
  def to_s()
    "Image (#{@blob.length} bytes)"
  end
end


def bounty_image(domain, bounties, reputation)
  if (bounties == 0)
    return Image.new(IO.read('./resources/no-bounties.png'))
  end

  bg = Magick::ImageList.new('./resources/bottom.png')
  fg = Magick::ImageList.new('./resources/top.png')
  values = Magick::Draw.new
  gravity = Magick::CenterGravity
  bountyCountFont = './resources/Helvetica.ttf'
  repFont = './resources/Anonymous Pro B.ttf'

  # Doing the lower value first, otherwise the kerning value in the bounty
  # count screws up the bounty value
  values.annotate(bg, 250, 80, 204, 414, reputation.to_s) do
    self.pointsize = 42
    self.font = repFont
    self.stroke = 'transparent'
    self.fill = '#3B3B3B'
    self.gravity = gravity
  end

  values.annotate(bg, 250, 80, 180, 200, ('%02d' % bounties.to_s)) do
    self.pointsize = 184
    self.font = bountyCountFont
    self.font_family = 'Helvetica'
    self.stroke = 'transparent'
    self.fill = '#2F2F2F'
    self.gravity = gravity
    self.kerning = 88
  end

  Image.new(bg.composite_layers(fg).to_blob)
end