Fixed wx.Timer to not need to hold an extra reference to itself, so it

can be cleaned up properly when the Python reference to it is
released.  Also fixed wx.FutureCall so that its timer can be
restarted.  Souped up the Timer demo to show and explain the various
ways to use a wx.Timer.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26033 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_core_ex.py

@@ -117,7 +117,7 @@ def CallAfter(callable, *args, **kw):
 
 class FutureCall:
     """
-    A convenience class for wxTimer, that calls the given callable
+    A convenience class for wx.Timer, that calls the given callable
     object once after the given amount of milliseconds, passing any
     positional or keyword args.  The return value of the callable is
     availbale after it has been run with the GetResult method.
@@ -134,6 +134,7 @@ class FutureCall:
         self.callable = callable
         self.SetArgs(*args, **kwargs)
         self.runCount = 0
+        self.running = False
         self.hasRun = False
         self.result = None
         self.timer = None
@@ -155,6 +156,7 @@ class FutureCall:
         self.Stop()
         self.timer = wx.PyTimer(self.Notify)
         self.timer.Start(self.millis, wx.TIMER_ONE_SHOT)
+        self.running = True
     Restart = Start
 
 
@@ -201,9 +203,12 @@ class FutureCall:
         """
         if self.callable and getattr(self.callable, 'im_self', True):
             self.runCount += 1
+            self.running = False
             self.result = self.callable(*self.args, **self.kwargs)
         self.hasRun = True
-        wx.CallAfter(self.Stop)
+        if not self.running:
+            # if it wasn't restarted, then cleanup
+            wx.CallAfter(self.Stop)
 
 
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