lib/python/Components/GUIComponent.py

   1 import skin
   2
   3 from enigma import ePoint
   4
   5 class GUIComponent(object):
   6         """ GUI component """
   7
   8         def __init__(self):
   9                 self.instance = None
  10                 self.visible = 1
  11
  12         def execBegin(self):
  13                 pass
  14
  15         def execEnd(self):
  16                 pass
  17
  18         def onShow(self):
  19                 pass
  20
  21         def onHide(self):
  22                 pass
  23
  24         def destroy(self):
  25                 self.__dict__.clear()
  26
  27         # this works only with normal widgets - if you don't have self.instance, override this.
  28         def applySkin(self, desktop):
  29                 if not self.visible:
  30                         self.instance.hide()
  31                 skin.applyAllAttributes(self.instance, desktop, self.skinAttributes)
  32
  33         def move(self, x, y):
  34                 self.instance.move(ePoint(int(x), int(y)))
  35
  36         def show(self):
  37                 self.__visible = 1
  38                 if self.instance is not None:
  39                         self.instance.show()
  40
  41         def hide(self):
  42                 self.__visible = 0
  43                 if self.instance is not None:
  44                         self.instance.hide()
  45
  46         def getVisible(self):
  47                 return self.__visible
  48
  49         def setVisible(self, visible):
  50                 if visible:
  51                         self.show()
  52                 else:
  53                         self.hide()
  54
  55         visible = property(getVisible, setVisible)
  56
  57         def setPosition(self, x, y):
  58                 self.instance.move(ePoint(int(x), int(y)))
  59
  60         def getPosition(self):
  61                 p = self.instance.position()
  62                 return (p.x(), p.y())
  63
  64         position = property(getPosition, setPosition)
  65
  66         # default implementation for only one widget per component
  67         # feel free to override!
  68         def GUIcreate(self, parent):
  69                 self.instance = self.createWidget(parent)
  70                 self.postWidgetCreate(self.instance)
  71
  72         def GUIdelete(self):
  73                 self.preWidgetRemove(self.instance)
  74                 self.instance = None
  75
  76         # default for argumentless widget constructor
  77         def createWidget(self, parent):
  78                 return self.GUI_WIDGET(parent)
  79
  80         def postWidgetCreate(self, instance):
  81                 pass
  82
  83         def preWidgetRemove(self, instance):
  84                 pass