zwischenstand eingepflegt. Controller Funktionen soll in Zukunft über Events aufgerufen werden)

lib/controller.py

@@ -2,15 +2,66 @@
 Contains the logic for the MVC of CreoMigrate Gui
 """
 
-class Controller():
+class Observer():
+    _observers = []
+    def __init__(self):
+        self._observers.append(self)
+        self._observables = {}
+
+    def observe(self, event_name, callback):
+        """If the observer is not in the list,
+        append it into the list"""
+        if event_name not in self._observables:
+            self._observables[event_name] = callback
+ 
+    def detach(self, observer):
+        """Remove the observer from the observer list"""
+        try:
+            self._observers.remove(observer)
+        except ValueError:
+            pass
+
+    def attach(self, observer):
+        """If the observer is not in the list,
+        append it into the list"""
+        if observer not in self._observers:
+            self._observers.append(observer)
+
+    def notify(self, modifier = None):
+        """Alert the observers"""
+        for observer in self._observers:
+            if modifier != observer:
+                observer.update(self)
+
+class Event():
+    def __init__(self, name, data, autofire = True):
+        self.name = name
+        self.data = data
+        if autofire:
+            self.fire()
+    def fire(self):
+        for observer in Observer._observers:
+            if self.name in observer._observables:
+                observer._observables[self.name](self.data)
+
+class Controller(Observer):
     """
     Class for manipulating the model and returning data for the view
     """
-    def __init__(self, model):
-        self.model = model
+    def __init__(self):
+        self.model = None
+        self.view = None # currently just one gui/view
+        Observer.__init__(self)
 
-    def update_view(self):
-        pass
+    def set_model(self, model):
+        self.model = model
+    def set_view(self, view):
+        self.view = view
+
+    def data_to_gui(self):
+        self.view.data_from_model()
+    def data_from_model(self):
+        self.view.data_from_model()
 
     def get_current_asm_id(self):
         self.model.get_current_asm_id()
@@ -49,6 +100,7 @@ class Controller():
     def set_gui_data(self, key, value):
         """merken der Eingaben des Nutzers der GUI """
         self.model.set_gui_data(key, value)
+        self.notify()
 
     def get_gui_data(self, key):
         return self.model.get_gui_data(key)