lib/python/Components/Converter/ServicePosition.py

   1 from Converter import Converter
   2 from Poll import Poll
   3 from enigma import iPlayableService
   4 from Components.Element import cached
   5
   6 class ServicePosition(Converter, Poll, object):
   7         TYPE_LENGTH = 0,
   8         TYPE_POSITION = 1,
   9         TYPE_REMAINING = 2,
  10         TYPE_GAUGE = 3
  11
  12         def __init__(self, type):
  13                 Poll.__init__(self)
  14                 Converter.__init__(self, type)
  15                 if type == "Length":
  16                         self.type = self.TYPE_LENGTH
  17                 elif type == "Position":
  18                         self.type = self.TYPE_POSITION
  19                 elif type == "Remaining":
  20                         self.type = self.TYPE_REMAINING
  21                 elif type == "Gauge":
  22                         self.type = self.TYPE_GAUGE
  23
  24                 self.poll_interval = 500
  25                 self.poll_enabled = self.type != self.TYPE_LENGTH
  26
  27         def getSeek(self):
  28                 s = self.source.service
  29                 return s and s.seek()
  30
  31         @cached
  32         def getPosition(self):
  33                 seek = self.getSeek()
  34                 if seek is None:
  35                         return None
  36                 pos = seek.getPlayPosition()
  37                 if pos[0]:
  38                         return 0
  39                 return pos[1]
  40
  41         @cached
  42         def getLength(self):
  43                 seek = self.getSeek()
  44                 if seek is None:
  45                         return None
  46                 length = seek.getLength()
  47                 if length[0]:
  48                         return 0
  49                 return length[1]
  50
  51         @cached
  52         def getCutlist(self):
  53                 service = self.source.service
  54                 cue = service and service.cueSheet()
  55                 return cue and cue.getCutList()
  56
  57         @cached
  58         def getText(self):
  59                 seek = self.getSeek()
  60                 if seek is None:
  61                         return ""
  62                 else:
  63                         if self.type == self.TYPE_LENGTH:
  64                                 l = self.length
  65                         elif self.type == self.TYPE_POSITION:
  66                                 l = self.position
  67                         elif self.type == self.TYPE_REMAINING:
  68                                 l = self.length - self.position
  69
  70                         l /= 90000
  71
  72                         if l > 0:
  73                                 sign = ""
  74                         else:
  75                                 l = -l
  76                                 sign = "-"
  77
  78                         return sign + "%d:%02d" % (l/60, l%60)
  79
  80         position = property(getPosition)
  81         length = property(getLength)
  82         cutlist = property(getCutlist)
  83         text = property(getText)
  84
  85         def changed(self, what):
  86                 cutlist_refresh = what[0] != self.CHANGED_SPECIFIC or what[1] in [iPlayableService.evCuesheetChanged]
  87                 time_refresh = what[0] == self.CHANGED_POLL or what[0] == self.CHANGED_SPECIFIC and what[1] in [iPlayableService.evCuesheetChanged]
  88
  89                 if cutlist_refresh:
  90                         if self.type == self.TYPE_GAUGE:
  91                                 self.downstream_elements.cutlist_changed()
  92
  93                 if time_refresh:
  94                         self.downstream_elements.changed(what)