view.rb in vidibus-helpers-0.0.1

- old
+ new

@@ -14,9 +14,33 @@
         # Returns next number for tab order.
         def autotab
           @autotab ||= 0
           @autotab += 1
         end
+
+        # Formats a number or float as human duration.
+        #
+        # Examples:
+        #
+        #   number_to_duration(24.5)                  # => "00:25"
+        #   number_to_duration(24.5, :hours => true)  # => "00:00:25"
+        #   number_to_duration(3654)                  # => "01:00:54"
+        #   number_to_duration(3654, :hours => false) # => "60:54"
+        #
+        def number_to_duration(seconds, options = {})
+          hours = options[:hours]
+          seconds = seconds.round
+          hour = (seconds / 3600).floor unless hours == false
+          min  = (seconds / 60).floor
+          sec  = (seconds % 60).round
+          if hours != false and (hours == true or hour > 0)
+            min -= hour * 60
+            output = "%02d:" % hour
+          else
+            output = ''
+          end
+          output + "%02d:%02d" % [ min, sec ]
+        end
       end
     end
   end
 end