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, ElementError
   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
  16                 args = type.split(',')
  17                 type = args.pop(0)
  18
  19                 self.negate = 'Negate' in args
  20                 self.detailed = 'Detailed' in args
  21                 self.showHours = 'ShowHours' in args
  22                 self.showNoSeconds = 'ShowNoSeconds' in args
  23
  24                 if self.detailed:
  25                         self.poll_interval = 100
  26                 else:
  27                         self.poll_interval = 500
  28
  29                 if type == "Length":
  30                         self.type = self.TYPE_LENGTH
  31                 elif type == "Position":
  32                         self.type = self.TYPE_POSITION
  33                 elif type == "Remaining":
  34                         self.type = self.TYPE_REMAINING
  35                 elif type == "Gauge":
  36                         self.type = self.TYPE_GAUGE
  37                 else:
  38                         raise ElementError("type must be {Length|Position|Remaining|Gauge} with optional arguments {Negate|Detailed|ShowHours|ShowNoSeconds} for ServicePosition converter")
  39
  40                 self.poll_enabled = self.type != self.TYPE_LENGTH
  41
  42         def getSeek(self):
  43                 s = self.source.service
  44                 return s and s.seek()
  45
  46         @cached
  47         def getPosition(self):
  48                 seek = self.getSeek()
  49                 if seek is None:
  50                         return None
  51                 pos = seek.getPlayPosition()
  52                 if pos[0]:
  53                         return 0
  54                 return pos[1]
  55
  56         @cached
  57         def getLength(self):
  58                 seek = self.getSeek()
  59                 if seek is None:
  60                         return None
  61                 length = seek.getLength()
  62                 if length[0]:
  63                         return 0
  64                 return length[1]
  65
  66         @cached
  67         def getCutlist(self):
  68                 service = self.source.service
  69                 cue = service and service.cueSheet()
  70                 return cue and cue.getCutList()
  71
  72         @cached
  73         def getText(self):
  74                 seek = self.getSeek()
  75                 if seek is None:
  76                         return ""
  77                 else:
  78                         if self.type == self.TYPE_LENGTH:
  79                                 l = self.length
  80                         elif self.type == self.TYPE_POSITION:
  81                                 l = self.position
  82                         elif self.type == self.TYPE_REMAINING:
  83                                 l = self.length - self.position
  84
  85                         if not self.detailed:
  86                                 l /= 90000
  87
  88                         if self.negate: l = -l
  89
  90                         if l > 0:
  91                                 sign = ""
  92                         else:
  93                                 l = -l
  94                                 sign = "-"
  95
  96                         if not self.detailed:
  97                                 if self.showHours:
  98                                         if self.showNoSeconds:
  99                                                 return sign + "%d:%02d" % (l/3600, l%3600/60)
 100                                         else:
 101                                                 return sign + "%d:%02d:%02d" % (l/3600, l%3600/60, l%60)
 102                                 else:
 103                                         if self.showNoSeconds:
 104                                                 return sign + "%d" % (l/60)
 105                                         else:
 106                                                 return sign + "%d:%02d" % (l/60, l%60)
 107                         else:
 108                                 if self.showHours:
 109                                         return sign + "%d:%02d:%02d:%03d" % ((l/3600/90000), (l/90000)%3600/60, (l/90000)%60, (l%90000)/90)
 110                                 else:
 111                                         return sign + "%d:%02d:%03d" % ((l/60/90000), (l/90000)%60, (l%90000)/90)
 112
 113         # range/value are for the Progress renderer
 114         range = 10000
 115
 116         @cached
 117         def getValue(self):
 118                 pos = self.position
 119                 len = self.length
 120                 if pos is None or len is None or len <= 0:
 121                         return None
 122                 return pos * 10000 / len
 123
 124         position = property(getPosition)
 125         length = property(getLength)
 126         cutlist = property(getCutlist)
 127         text = property(getText)
 128         value = property(getValue)
 129
 130         def changed(self, what):
 131                 cutlist_refresh = what[0] != self.CHANGED_SPECIFIC or what[1] in (iPlayableService.evCuesheetChanged,)
 132                 time_refresh = what[0] == self.CHANGED_POLL or what[0] == self.CHANGED_SPECIFIC and what[1] in (iPlayableService.evCuesheetChanged,)
 133
 134                 if cutlist_refresh:
 135                         if self.type == self.TYPE_GAUGE:
 136                                 self.downstream_elements.cutlist_changed()
 137
 138                 if time_refresh:
 139                         self.downstream_elements.changed(what)