simplify GUIcreate/createWidget, fix base class order

[vuplus_dvbapp] / lib / python / Components / GUIComponent.py

diff --git a/lib/python/Components/GUIComponent.py b/lib/python/Components/GUIComponent.py
index 5483d18..afe9526 100644 (file)
--- a/lib/python/Components/GUIComponent.py
+++ b/lib/python/Components/GUIComponent.py
@@ -2,11 +2,15 @@ import skin
 
 from enigma import ePoint
 
-class GUIComponent:
+class GUIComponent(object):
        """ GUI component """
        
+       SHOWN = 0
+       HIDDEN = 1
+       
        def __init__(self):
-               pass
+               self.instance = None
+               self.state = self.SHOWN
        
        def execBegin(self):
                pass
@@ -14,9 +18,70 @@ class GUIComponent:
        def execEnd(self):
                pass
        
+       def onShow(self):
+               pass
+
+       def onHide(self):
+               pass
+       
+       def destroy(self):
+               pass
+       
        # this works only with normal widgets - if you don't have self.instance, override this.
        def applySkin(self, desktop):
+               if self.state == self.HIDDEN:
+                       self.instance.hide()
                skin.applyAllAttributes(self.instance, desktop, self.skinAttributes)
 
        def move(self, x, y):
                self.instance.move(ePoint(int(x), int(y)))
+
+       def show(self):
+               self.__state = self.SHOWN
+               if self.instance is not None:
+                       self.instance.show()
+
+       def hide(self):
+               self.__state = self.HIDDEN
+               if self.instance is not None:
+                       self.instance.hide()
+
+       def getState(self):
+               return self.__state
+       
+       def setState(self, state):
+               if state == self.SHOWN:
+                       self.show()
+               elif state == self.HIDDEN:
+                       self.hide()
+
+       state = property(getState, setState)
+
+       def setPosition(self, x, y):
+               self.instance.move(ePoint(int(x), int(y)))
+
+       def getPosition(self):
+               p = self.instance.position()
+               return (p.x(), p.y())
+
+       position = property(getPosition, setPosition)
+
+       # default implementation for only one widget per component
+       # feel free to override!
+       def GUIcreate(self, parent):
+               self.instance = self.createWidget(parent)
+               self.postWidgetCreate(self.instance)
+       
+       def GUIdelete(self):
+               self.preWidgetRemove(self.instance)
+               self.instance = None
+
+       # default for argumentless widget constructor
+       def createWidget(self, parent):
+               return self.GUI_WIDGET(parent)
+
+       def postWidgetCreate(self, instance):
+               pass
+       
+       def preWidgetRemove(self, instance):
+               pass