r_magick_processor.rb in dragonfly-0.1.1

- old
+ new

@@ -48,9 +48,23 @@
         gravity = GRAVITY_MAPPINGS[opts[:gravity]] || Magick::CenterGravity
 
         image.resize_to_fill(width, height, gravity).to_blob
       end
 
+      def rotate(temp_object, opts={})
+        if opts[:amount]
+          args = [opts[:amount].to_f]
+          args << opts[:qualifier] if opts[:qualifier]
+          image = rmagick_image(temp_object)
+          image.background_color = opts[:background_colour] if opts[:background_colour]
+          image.background_color = opts[:background_color] if opts[:background_color]
+          rotated_image = image.rotate(*args)
+          rotated_image ? rotated_image.to_blob : temp_object
+        else
+          temp_object
+        end
+      end
+
       def vignette(temp_object, opts={})
         x      = opts[:x].to_f      || temp_object.width  * 0.1
         y      = opts[:y].to_f      || temp_object.height * 0.1
         radius = opts[:radius].to_f ||  0.0
         sigma  = opts[:sigma].to_f  || 10.0