smartcropper document generator

smartcropper_document.rb

require 'RMagick'
require 'smartcropper'

class DemoChopper

  def initialize width, height, filename
    @width, @height, @filename = width, height, filename

    @files = [{
      image: ::Magick::ImageList.new(filename).resize_to_fit!(600, 1000),
      name:  outfile("orig"),
      method: "original",
      method_s: "original"
    }]

    @methods = ["smart_crop", "smart_crop_and_scale", "smart_square"]
    @methods.each do |method|
      sc = SmartCropper.from_file(filename)
      if method == "smart_square"
        image = sc.send(method)
        method_s = method
      else
        image = sc.send(method, width, height)
        method_s = "#{method} #{@height}, #{@width}"
      end
      image.resize!(0.5)
      @files << {image: image, name: outfile(method), method: method, method_s: method_s}
    end
  end

  def write
    @files.each {|f| f[:image].write f[:name] }
  end

  def html
    out = "<div class=\"group\">"
    @files.each do |file|
      out += "
       <figure>
        <figcaption>#{file[:method_s]}</figcaption>
        <img src=\"#{file[:name]}\" alt=\"#{file[:method_s]}\" />
       </figure>"
    end
    out += "</div>"
  end

  private
  def outfile method
    "#{File.basename(@filename, '.jpg')}_#{method}.jpg"
  end
end

['ts.jpg', 'sikh.jpg', 'carice.jpg', 'banksy.jpg'].each do |sample|
  dc = DemoChopper.new(300, 400, sample)
  dc.write
  puts dc.html
end