RMagick.rb in rmagick-1.13.0

- old
+ new

@@ -1,6 +1,6 @@
-# $Id: RMagick.rb,v 1.42 2006/06/03 22:56:40 rmagick Exp $
+# $Id: RMagick.rb,v 1.43 2006/06/20 23:18:22 rmagick Exp $
 #==============================================================================
 #                  Copyright (C) 2006 by Timothy P. Hunter
 #   Name:       RMagick.rb
 #   Author:     Tim Hunter
 #   Purpose:    Extend Ruby to interface with ImageMagick.
@@ -710,12 +710,17 @@
     # Inspect the gamma and white point values and swap them if they
     # look like they're in the old order.
 
     # (Thanks to Al Evans for the suggestion.)
     def level(black_point=0.0, white_point=nil, gamma=nil)
+        black_point = Float(black_point)
+
         white_point ||= Magick::MaxRGB - black_point
+        white_point = Float(white_point)
+
         gamma_arg = gamma
         gamma ||= 1.0
+        gamma = Float(gamma)
 
         if gamma.abs > 10.0 || white_point.abs <= 10.0 || white_point.abs < gamma.abs
             gamma, white_point = white_point, gamma
             unless gamma_arg
                 white_point = Magick::MaxRGB - black_point