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         TYPE_POSITION_DETAILED = 4
  12
  13         def __init__(self, type):
  14                 Poll.__init__(self)
  15                 Converter.__init__(self, type)
  16
  17                 self.poll_interval = 500
  18
  19                 if type == "Length":
  20                         self.type = self.TYPE_LENGTH
  21                 elif type == "Position":
  22                         self.type = self.TYPE_POSITION
  23                 elif type == "PositionDetailed":
  24                         self.type = self.TYPE_POSITION_DETAILED
  25                         self.poll_interval = 100
  26                 elif type == "Remaining":
  27                         self.type = self.TYPE_REMAINING
  28                 elif type == "Gauge":
  29                         self.type = self.TYPE_GAUGE
  30
  31                 self.poll_enabled = self.type != self.TYPE_LENGTH
  32
  33         def getSeek(self):
  34                 s = self.source.service
  35                 return s and s.seek()
  36
  37         @cached
  38         def getPosition(self):
  39                 seek = self.getSeek()
  40                 if seek is None:
  41                         return None
  42                 pos = seek.getPlayPosition()
  43                 if pos[0]:
  44                         return 0
  45                 return pos[1]
  46
  47         @cached
  48         def getLength(self):
  49                 seek = self.getSeek()
  50                 if seek is None:
  51                         return None
  52                 length = seek.getLength()
  53                 if length[0]:
  54                         return 0
  55                 return length[1]
  56
  57         @cached
  58         def getCutlist(self):
  59                 service = self.source.service
  60                 cue = service and service.cueSheet()
  61                 return cue and cue.getCutList()
  62
  63         @cached
  64         def getText(self):
  65                 seek = self.getSeek()
  66                 if seek is None:
  67                         return ""
  68                 else:
  69                         if self.type == self.TYPE_LENGTH:
  70                                 l = self.length
  71                         elif self.type in [self.TYPE_POSITION, self.TYPE_POSITION_DETAILED]:
  72                                 l = self.position
  73                         elif self.type == self.TYPE_REMAINING:
  74                                 l = self.length - self.position
  75
  76                         if self.type != self.TYPE_POSITION_DETAILED:
  77                                 l /= 90000
  78
  79                         if l > 0:
  80                                 sign = ""
  81                         else:
  82                                 l = -l
  83                                 sign = "-"
  84
  85                         if self.type != self.TYPE_POSITION_DETAILED:
  86                                 return sign + "%d:%02d" % (l/60, l%60)
  87                         else:
  88                                 return sign + "%d:%02d:%03d" % ((l/60/90000), (l/90000)%60, (l%90000)/90)
  89
  90         position = property(getPosition)
  91         length = property(getLength)
  92         cutlist = property(getCutlist)
  93         text = property(getText)
  94
  95         def changed(self, what):
  96                 cutlist_refresh = what[0] != self.CHANGED_SPECIFIC or what[1] in [iPlayableService.evCuesheetChanged]
  97                 time_refresh = what[0] == self.CHANGED_POLL or what[0] == self.CHANGED_SPECIFIC and what[1] in [iPlayableService.evCuesheetChanged]
  98
  99                 if cutlist_refresh:
 100                         if self.type == self.TYPE_GAUGE:
 101                                 self.downstream_elements.cutlist_changed()
 102
 103                 if time_refresh:
 104                         self.downstream_elements.changed(what)