lib/python/Components/Pixmap.py

   1 import skin
   2 from GUIComponent import *
   3
   4 from enigma import *
   5
   6 class Pixmap(GUIComponent):
   7         """Pixmap can be used for components which diplay a pixmap"""
   8
   9         SHOWN = 0
  10         HIDDEN = 1
  11
  12         def __init__(self):
  13                 GUIComponent.__init__(self)
  14                 self.instance = None
  15                 self.state = self.SHOWN
  16
  17         def GUIcreate(self, parent):
  18                 self.instance = self.createWidget(parent)
  19
  20         def GUIdelete(self):
  21                 self.removeWidget(self.instance)
  22                 self.instance = None
  23
  24         def getePixmap(self, parent):
  25                 #pixmap = ePixmap(parent)
  26                 #pixmap.setPixmapFromFile(self.filename)
  27                 return ePixmap(parent)
  28
  29         def createWidget(self, parent):
  30                 return self.getePixmap(parent)
  31
  32         def removeWidget(self, w):
  33                 pass
  34
  35         def showPixmap(self):
  36                 self.state = self.SHOWN
  37                 self.instance.show()
  38
  39         def hidePixmap(self):
  40                 self.state = self.HIDDEN
  41                 self.instance.hide()
  42
  43         def removeWidget(self, instance):
  44                 pass
  45
  46 class PixmapConditional(Pixmap):
  47         def __init__(self, withTimer = True):
  48                 Pixmap.__init__(self)
  49
  50                 self.setConnect(None)
  51
  52                 if (withTimer):
  53                         self.conditionCheckTimer = eTimer()
  54                         self.conditionCheckTimer.timeout.get().append(self.update)
  55                         self.conditionCheckTimer.start(1000)
  56
  57         def setConnect(self, conditionalFunction):
  58                 self.conditionalFunction = conditionalFunction
  59
  60         def activateCondition(self, condition):
  61                 if (condition):
  62                         if (self.state == self.HIDDEN):
  63                                 self.showPixmap()
  64                 else:
  65                         if (self.state == self.SHOWN):
  66                                 self.hidePixmap()
  67
  68         def update(self):
  69                 if (self.conditionalFunction != None):
  70                         try:
  71                                 self.conditionalFunction() # check, if the conditionalfunction is still valid
  72                         except:
  73                                 self.conditionalFunction = None
  74                                 self.activateCondition(False)
  75
  76                         self.activateCondition(self.conditionalFunction())