avoid future redundant code by moving functionality for tuner status display to a...

[enigma2.git] / lib / python / Components / TunerInfo.py

diff --git a/lib/python/Components/TunerInfo.py b/lib/python/Components/TunerInfo.py
new file mode 100644 (file)
index 0000000..e22ce46
--- /dev/null
+++ b/lib/python/Components/TunerInfo.py
@@ -0,0 +1,83 @@
+from GUIComponent import GUIComponent
+
+from enigma import eLabel, eSlider, iFrontendStatusInformation
+
+from math import log
+
+class TunerInfo(GUIComponent):
+       SNR_PERCENTAGE = 0
+       AGC_PERCENTAGE = 1
+       BER_VALUE = 2
+       SNR_BAR = 3
+       AGC_BAR = 4
+       BER_BAR = 5
+       def __init__(self, type, servicefkt):
+               GUIComponent.__init__(self)
+               self.instance = None
+               self.message = None
+               self.value = None
+               
+               self.servicefkt = servicefkt
+               self.type = type
+               self.update()
+       
+       def setText(self, text):
+               self.message = text
+               if self.instance:
+                       self.instance.setText(self.message)
+       
+       def setValue(self, value):
+               self.value = value
+               if self.instance:
+                       self.instance.setValue(self.value)              
+                       
+       def calc(self,val):
+               if not val:
+                       return 0
+               if val < 2500:
+                       return (long)(log(val)/log(2))
+               return val*100/65535
+       
+       def update(self):
+               service = self.servicefkt()
+               value = 0
+               if service is not None:
+                       feinfo = service.frontendStatusInfo()
+                       if feinfo is not None:
+                               if self.type == self.SNR_PERCENTAGE or self.type == self.SNR_BAR:
+                                       value = feinfo.getFrontendInfo(iFrontendStatusInformation.signalPower) * 100 / 65536
+                               elif self.type == self.AGC_PERCENTAGE or self.type == self.AGC_BAR:
+                                       value = feinfo.getFrontendInfo(iFrontendStatusInformation.signalQuality) * 100 / 65536
+                               elif self.type == self.BER_VALUE or self.type == self.BER_BAR:
+                                       value = feinfo.getFrontendInfo(iFrontendStatusInformation.bitErrorRate)
+               
+               if self.type == self.SNR_PERCENTAGE or self.type == self.AGC_PERCENTAGE:
+                       self.setText("%d%%" % (value))
+               elif self.type == self.BER_VALUE:
+                       self.setText("%d" % (value))
+               elif self.type == self.SNR_BAR or self.type == self.AGC_BAR:
+                       self.setValue(value)
+               elif self.type == self.BER_BAR:
+                       self.setValue(self.calc(value))
+
+       def createWidget(self, parent):
+               if self.SNR_PERCENTAGE <= self.type <= self.BER_VALUE:
+                       return eLabel(parent)
+               elif self.SNR_BAR <= self.type <= self.BER_BAR:
+                       self.g = eSlider(parent)
+                       self.g.setRange(0, 100)
+                       return self.g
+               
+       def GUIcreate(self, parent):
+               self.instance = self.createWidget(parent)
+               if self.message is not None:
+                       self.instance.setText(self.message)
+               elif self.value is not None:
+                       self.instance.setValue(self.value)      
+
+       def GUIdelete(self):
+               self.removeWidget(self.instance)
+               self.instance = None
+       
+       def removeWidget(self, instance):
+               pass
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