lib/python/Components/Converter/EventTime.py

   1 from Converter import Converter
   2 from Poll import Poll
   3 from time import time
   4
   5 class EventTime(Poll, Converter, object):
   6         STARTTIME = 0
   7         ENDTIME = 1
   8         REMAINING = 2
   9         PROGRESS = 3
  10         DURATION = 4
  11
  12         def __init__(self, type, *args, **kwargs):
  13                 Converter.__init__(self)
  14                 Poll.__init__(self)
  15                 if type == "EndTime":
  16                         self.type = self.ENDTIME
  17                 elif type == "Remaining":
  18                         self.type = self.REMAINING
  19                         self.poll_interval = 60*1000
  20                         self.poll_enabled = True
  21                 elif type == "StartTime":
  22                         self.type = self.STARTTIME
  23                 elif type == "Duration":
  24                         self.type = self.DURATION
  25                 elif type == "Progress":
  26                         self.type = self.PROGRESS
  27                         self.poll_interval = 30*1000
  28                         self.poll_enabled = True
  29                 else:
  30                         raise str("'%s' is not <StartTime|EndTime|Remaining|Duration> for EventTime converter" % type)
  31
  32         def getTime(self):
  33                 assert self.type != self.PROGRESS
  34
  35                 event = self.source.event
  36                 if event is None:
  37                         return None
  38
  39                 if self.type == self.STARTTIME:
  40                         return event.getBeginTime()
  41                 elif self.type == self.ENDTIME:
  42                         return event.getBeginTime() + event.getDuration()
  43                 elif self.type == self.DURATION:
  44                         return event.getDuration()
  45                 elif self.type == self.REMAINING:
  46                         now = int(time())
  47                         start_time = event.getBeginTime()
  48                         duration = event.getDuration()
  49                         end_time = start_time + duration
  50                         if start_time <= now <= end_time:
  51                                 return (duration, end_time - now)
  52                         else:
  53                                 return (duration, None)
  54
  55         def getValue(self):
  56                 assert self.type == self.PROGRESS
  57
  58                 event = self.source.event
  59                 if event is None:
  60                         return None
  61
  62                 now = int(time())
  63                 start_time = event.getBeginTime()
  64                 duration = event.getDuration()
  65                 if start_time <= now <= (start_time + duration) and duration > 0:
  66                         return (now - start_time) * 1000 / duration
  67                 else:
  68                         return None
  69
  70         time = property(getTime)
  71         value = property(getValue)
  72         range = 1000