lib/python/Components/TunerInfo.py

   1 from GUIComponent import GUIComponent
   2
   3 from enigma import eLabel, eSlider, iFrontendStatusInformation
   4
   5 from math import log
   6
   7 class TunerInfo(GUIComponent):
   8         SNR_PERCENTAGE = 0
   9         AGC_PERCENTAGE = 1
  10         BER_VALUE = 2
  11         SNR_BAR = 3
  12         AGC_BAR = 4
  13         BER_BAR = 5
  14         LOCK_STATE = 6
  15         SYNC_STATE = 7
  16         def __init__(self, type, servicefkt):
  17                 GUIComponent.__init__(self)
  18                 self.instance = None
  19                 self.message = None
  20                 self.value = None
  21
  22                 self.servicefkt = servicefkt
  23                 self.type = type
  24                 self.update()
  25
  26         def setText(self, text):
  27                 self.message = text
  28                 if self.instance:
  29                         self.instance.setText(self.message)
  30
  31         def setValue(self, value):
  32                 self.value = value
  33                 if self.instance:
  34                         self.instance.setValue(self.value)
  35
  36         def calc(self,val):
  37                 if not val:
  38                         return 0
  39                 if val < 2500:
  40                         return (long)(log(val)/log(2))
  41                 return val*100/65535
  42
  43         def update(self):
  44                 service = self.servicefkt()
  45                 value = 0
  46                 if service is not None:
  47                         feinfo = service.frontendStatusInfo()
  48                         if feinfo is not None:
  49                                 if self.type == self.SNR_PERCENTAGE or self.type == self.SNR_BAR:
  50                                         value = feinfo.getFrontendInfo(iFrontendStatusInformation.signalPower) * 100 / 65536
  51                                 elif self.type == self.AGC_PERCENTAGE or self.type == self.AGC_BAR:
  52                                         value = feinfo.getFrontendInfo(iFrontendStatusInformation.signalQuality) * 100 / 65536
  53                                 elif self.type == self.BER_VALUE or self.type == self.BER_BAR:
  54                                         value = feinfo.getFrontendInfo(iFrontendStatusInformation.bitErrorRate)
  55                                 elif self.type == self.LOCK_STATE:
  56                                         value = feinfo.getFrontendInfo(iFrontendStatusInformation.LockState)
  57
  58                 if self.type == self.SNR_PERCENTAGE or self.type == self.AGC_PERCENTAGE:
  59                         self.setText("%d%%" % (value))
  60                 elif self.type == self.BER_VALUE:
  61                         self.setText("%d" % (value))
  62                 elif self.type == self.SNR_BAR or self.type == self.AGC_BAR:
  63                         self.setValue(value)
  64                 elif self.type == self.BER_BAR:
  65                         self.setValue(self.calc(value))
  66                 elif self.type == self.LOCK_STATE:
  67                         if value == 1:
  68                                 self.setText(_("locked"))
  69                         else:
  70                                 self.setText(_("not locked"))
  71
  72         def createWidget(self, parent):
  73                 if self.SNR_PERCENTAGE <= self.type <= self.BER_VALUE or self.type == self.LOCK_STATE:
  74                         return eLabel(parent)
  75                 elif self.SNR_BAR <= self.type <= self.BER_BAR:
  76                         self.g = eSlider(parent)
  77                         self.g.setRange(0, 100)
  78                         return self.g
  79
  80         def GUIcreate(self, parent):
  81                 self.instance = self.createWidget(parent)
  82                 if self.message is not None:
  83                         self.instance.setText(self.message)
  84                 elif self.value is not None:
  85                         self.instance.setValue(self.value)
  86
  87         def GUIdelete(self):
  88                 self.removeWidget(self.instance)
  89                 self.instance = None
  90
  91         def removeWidget(self, instance):
  92                 pass