lib/python/Components/ConditionalWidget.py

   1 import skin
   2 from GUIComponent import *
   3
   4 from enigma import *
   5
   6 class ConditionalWidget(GUIComponent):
   7         def __init__(self, withTimer = True):
   8                 GUIComponent.__init__(self)
   9
  10                 self.setConnect(None)
  11
  12                 if (withTimer):
  13                         self.conditionCheckTimer = eTimer()
  14                         self.conditionCheckTimer.timeout.get().append(self.update)
  15                         self.conditionCheckTimer.start(1000)
  16
  17         def setConnect(self, conditionalFunction):
  18                 self.conditionalFunction = conditionalFunction
  19
  20         def activateCondition(self, condition):
  21                 if condition:
  22                         self.visible = 1
  23                 else:
  24                         self.visible = 0
  25
  26         def update(self):
  27                 if (self.conditionalFunction != None):
  28                         try:
  29                                 self.conditionalFunction() # check, if the conditionalfunction is still valid
  30                                 self.activateCondition(self.conditionalFunction())
  31                         except:
  32                                 self.conditionalFunction = None
  33                                 self.activateCondition(False)
  34
  35 import time
  36
  37 class BlinkingWidget(GUIComponent):
  38         def __init__(self):
  39                 GUIComponent.__init__(self)
  40
  41                 self.blinking = True
  42
  43                 self.setBlinkTime(500)
  44
  45                 self.timer = eTimer()
  46                 self.timer.timeout.get().append(self.blink)
  47
  48         def setBlinkTime(self, time):
  49                 self.blinktime = time
  50
  51         def blink(self):
  52                 if self.blinking == True:
  53                         self.visible = not self.visible
  54
  55         def startBlinking(self):
  56                 self.blinking = True
  57                 self.timer.start(self.blinktime)
  58
  59         def stopBlinking(self):
  60                 self.blinking = False
  61                 if self.visible:
  62                         self.hide()
  63                 self.timer.stop()
  64
  65 class BlinkingWidgetConditional(BlinkingWidget, ConditionalWidget):
  66         def __init__(self):
  67                 BlinkingWidget.__init__(self)
  68                 ConditionalWidget.__init__(self)
  69
  70         def activateCondition(self, condition):
  71                 if (condition):
  72                         if not self.blinking: # we are already blinking
  73                                 self.startBlinking()
  74                 else:
  75                         if self.blinking: # we are blinking
  76                                 self.stopBlinking()