lib/sprite/image_combiner.rb in sprite-0.1.7 vs lib/sprite/image_combiner.rb in sprite-0.2.0

@@ -1,33 +1,40 @@
 module Sprite
   class ImageCombiner
-    def initialize
-      # avoid loading rmagick till the last possible moment
-      require 'rmagick'
+    def initialize(image_config)
+      begin
+        # avoid loading rmagick till the last possible moment
+        require "RMagick"
+      rescue LoadError
+        require 'rmagick'
+      end
+
+      @image_config = image_config
     end
-    
+
     def composite_images(dest_image, src_image, x, y)
       width = [src_image.columns + x, dest_image.columns].max
       height = [src_image.rows + y, dest_image.rows].max
       image = Magick::Image.new(width, height)
-      image.opacity = Magick::MaxRGB
+      if @image_config.background_color
+        image.opacity = 0
+      else
+        image.opacity = Magick::MaxRGB
+      end
 
       image.composite!(dest_image, 0, 0, Magick::OverCompositeOp)
       image.composite!(src_image, x, y, Magick::OverCompositeOp)
       image
     end
 
     # Image Utility Methods
-    def get_image(image_filename)
-      image = Magick::Image::read(image_filename).first
-    end
 
     def image_properties(image)
       {:name => File.basename(image.filename).split('.')[0], :width => image.columns, :height => image.rows}
     end
-        
+
     # REMOVE RMAGICK AND USE IMAGEMAGICK FROM THE COMMAND LINE
     # identify => find properties for an image
     # composite => combine 2 images
 
   end
-end
\ No newline at end of file
+end