lib/timing/zone_offset.rb in timing-0.0.3 vs lib/timing/zone_offset.rb in timing-0.0.4

@@ -1,21 +1,21 @@
 module Timing
-  class ZoneOffset < SimpleDelegator
+  class ZoneOffset < TransparentProxy
 
     REGEXP = /^([+-]?)(\d\d):?(\d\d)$/
 
     def initialize(seconds)
       raise ArgumentError, "#{seconds} is not a number" unless seconds.is_a? Numeric
       super
     end
 
     def to_s
-      hours = Interval.new(to_f).to_hours.to_i
-      minutes = Interval.new(to_f % Interval.hours(1)).to_minutes.to_i
-      sign = self < 0 ? '-' : '+'
+      "#{sign}#{hour.to_s.rjust(2, '0')}#{minute.to_s.rjust(2, '0')}"
+    end
 
-      "#{sign}#{hours.to_s.rjust(2, '0')}#{minutes.to_s.rjust(2, '0')}"
+    def iso8601
+      "#{sign}#{hour.to_s.rjust(2, '0')}:#{minute.to_s.rjust(2, '0')}"
     end
 
     def inspect
       "#{to_s} (#{to_f})"
     end
@@ -28,9 +28,23 @@
       sign = match.captures[0] == '-' ? -1 : 1
       hours = match.captures[1].to_i
       minutes = match.captures[2].to_i
 
       new (Interval.hours(hours) + Interval.minutes(minutes)) * sign
+    end
+
+    private
+
+    def hour
+      Interval.new(to_f).to_hours.to_i
+    end
+
+    def minute
+      Interval.new(to_f % Interval.hours(1)).to_minutes.to_i
+    end
+
+    def sign
+      self < 0 ? '-' : '+'
     end
 
   end
 end
\ No newline at end of file