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                 else:
  31                         raise "type must be {Length|Position|PositionDetaileed|Remaining|Gauge}"
  32
  33                 self.poll_enabled = self.type != self.TYPE_LENGTH
  34
  35         def getSeek(self):
  36                 s = self.source.service
  37                 return s and s.seek()
  38
  39         @cached
  40         def getPosition(self):
  41                 seek = self.getSeek()
  42                 if seek is None:
  43                         return None
  44                 pos = seek.getPlayPosition()
  45                 if pos[0]:
  46                         return 0
  47                 return pos[1]
  48
  49         @cached
  50         def getLength(self):
  51                 seek = self.getSeek()
  52                 if seek is None:
  53                         return None
  54                 length = seek.getLength()
  55                 if length[0]:
  56                         return 0
  57                 return length[1]
  58
  59         @cached
  60         def getCutlist(self):
  61                 service = self.source.service
  62                 cue = service and service.cueSheet()
  63                 return cue and cue.getCutList()
  64
  65         @cached
  66         def getText(self):
  67                 seek = self.getSeek()
  68                 if seek is None:
  69                         return ""
  70                 else:
  71                         if self.type == self.TYPE_LENGTH:
  72                                 l = self.length
  73                         elif self.type in [self.TYPE_POSITION, self.TYPE_POSITION_DETAILED]:
  74                                 l = self.position
  75                         elif self.type == self.TYPE_REMAINING:
  76                                 l = self.length - self.position
  77
  78                         if self.type != self.TYPE_POSITION_DETAILED:
  79                                 l /= 90000
  80
  81                         if l > 0:
  82                                 sign = ""
  83                         else:
  84                                 l = -l
  85                                 sign = "-"
  86
  87                         if self.type != self.TYPE_POSITION_DETAILED:
  88                                 return sign + "%d:%02d" % (l/60, l%60)
  89                         else:
  90                                 return sign + "%d:%02d:%03d" % ((l/60/90000), (l/90000)%60, (l%90000)/90)
  91
  92         # range/value are for the Progress renderer
  93         range = 10000
  94
  95         @cached
  96         def getValue(self):
  97                 pos = self.position
  98                 len = self.length
  99                 if pos is None or len is None or len <= 0:
 100                         return None
 101                 return pos * 10000 / len
 102
 103         position = property(getPosition)
 104         length = property(getLength)
 105         cutlist = property(getCutlist)
 106         text = property(getText)
 107         value = property(getValue)
 108
 109         def changed(self, what):
 110                 cutlist_refresh = what[0] != self.CHANGED_SPECIFIC or what[1] in [iPlayableService.evCuesheetChanged]
 111                 time_refresh = what[0] == self.CHANGED_POLL or what[0] == self.CHANGED_SPECIFIC and what[1] in [iPlayableService.evCuesheetChanged]
 112
 113                 if cutlist_refresh:
 114                         if self.type == self.TYPE_GAUGE:
 115                                 self.downstream_elements.cutlist_changed()
 116
 117                 if time_refresh:
 118                         self.downstream_elements.changed(what)