Additional image processors for carrierwave+minimagick

image_processors.rb

module CarrierWave
  module MiniMagick
    module ImageProcessors
      def store_dimensions(property_name)
          # TODO: deal with default version
          image = ::MiniMagick::Image.open(current_path)
          model.send("#{property_name}=", {}) unless model.send(property_name)
          ver = (version_name || "original").to_s
          model.send(property_name)[ver] = image["dimensions"]
        end
      
        def auto_orient
          manipulate! do |img|
            img.auto_orient
            img = yield(img) if block_given?
            img
          end
        end
      
        def strip
          manipulate! do |img|
            img.strip
            img = yield(img) if block_given?
            img
          end
        end
      
        def resize_to_fill_width(width, height, gravity = "center")
          manipulate! do |img|
            img.resize width
            cols, rows = img[:dimensions]
            if rows > height
              img.gravity "Center"
              img.extent "#{width}x#{height}"
            end
            img
          end
        end
      
        def extension_white_list
          %w( jpg jpeg gif png )
        end
      end
    end
  end