rmagick_outputter.rb in barby-0.6.3

- old
+ new

@@ -1,21 +1,26 @@
 require 'barby/outputter'
-require 'RMagick'
+require 'rmagick'
 
 module Barby
 
 
   #Renders images from barcodes using RMagick
   #
   #Registers the to_png, to_gif, to_jpg and to_image methods
   class RmagickOutputter < Outputter
-  
+
     register :to_png, :to_gif, :to_jpg, :to_image
 
-    attr_accessor :height, :xdim, :ydim, :margin
+    attr_writer :height, :xdim, :ydim, :margin
 
 
+    def initialize(*)
+      super
+      @height, @xdim, @ydim, @margin = nil
+    end
+
     #Returns a string containing a PNG image
     def to_png(*a)
       to_blob('png', *a)
     end
 
@@ -26,18 +31,18 @@
 
     #Returns a string containing a JPEG image
     def to_jpg(*a)
       to_blob('jpg', *a)
     end
-    
+
     def to_blob(format, *a)
       img = to_image(*a)
       blob = img.to_blob{|i| i.format = format }
-      
+
       #Release the memory used by RMagick explicitly. Ruby's GC
       #isn't aware of it and can't clean it up automatically
       img.destroy! if img.respond_to?(:destroy!)
-      
+
       blob
     end
 
     #Returns an instance of Magick::Image
     def to_image(opts={})