Ajout méthode removeEventListener.

[minwii.git] / src / app / eventutils.py

diff --git a/src/app/eventutils.py b/src/app/eventutils.py
index 1741579..c6c7f16 100755 (executable)
--- a/src/app/eventutils.py
+++ b/src/app/eventutils.py
@@ -28,6 +28,11 @@ $URL$
 """
 import types
 import pygame
+from StringIO import StringIO
+from logging import getLogger, basicConfig, DEBUG
+import sys
+basicConfig(level=DEBUG, stream = sys.stdout)
+console = getLogger('minwii.eventutils')
 
 class _EventDispatcher :
     def __init__(self) :
@@ -35,16 +40,36 @@ class _EventDispatcher :
         
     def addEventListener(self, eventType, listener) :
         if self.registry.has_key(eventType) :
-            self.registry[eventType].append(listener)
+            self.registry[eventType][listener] = True
         else :
-            self.registry[eventType] = [listener]
+            self.registry[eventType] = {listener:True}
+    
+    def removeEventListener(self, eventType, listener) :
+        try :
+            del self.registry[eventType][listener]
+        except KeyError :
+            console.warn("no listener to remove")
     
     def dispatchEvents(self) :
         events = pygame.event.get()
         for event in events :
-            listeners = self.registry.get(event.type, [])
-            for listener in listeners :
+            listeners = self.registry.get(event.type, {})
+            for listener in listeners.keys() :
                 listener(event)
+    def reset(self) :
+        self.registry = {}
+    
+    def __repr__(self) :
+        out = StringIO()
+        keys = self.registry.keys()
+        keys.sort()
+        for k in keys :
+            print >> out, "event", k
+            for listener in self.registry[k] :
+                print >> out, listener.__name__
+        out.seek(0)
+        return out.read()
+        
 
 EventDispatcher = _EventDispatcher()
 
@@ -64,16 +89,14 @@ class EventInitializer(type):
                 if isinstance(v, types.FunctionType) and hasattr(v, '__islistener__') :
                     listener = getattr(self, k)
                     EventDispatcher.addEventListener(v.__eventtype__, listener)
-                    del v.__islistener__
-                    del v.__eventtype__
         
         def ctor(self, *args, **kw) :
-            init_listeners(self)
             default_ctor = dict.get('__init__')
             if not default_ctor :
                 super(cls, self).__init__(*args, **kw)
             else :
                 default_ctor(self, *args, **kw)
+            init_listeners(self)
         
         cls.__init__ = ctor