Allow the OOR reference to be saved without doing an INCREF. This

solves the circular reference problem with wx.Timer.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31095 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_timer.i

@@ -35,7 +35,14 @@ enum {
 //IMP_PYCALLBACK__(wxPyTimer, wxTimer, Notify);
 
 IMPLEMENT_ABSTRACT_CLASS(wxPyTimer, wxTimer);
-    
+
+wxPyTimer::wxPyTimer(wxEvtHandler *owner, int id)
+    : wxTimer(owner, id)
+{
+    if (owner == NULL) SetOwner(this);
+}
+
+
 void wxPyTimer::Notify() {
     bool found;
     bool blocked = wxPyBeginBlockThreads();
@@ -58,7 +65,11 @@ MustHaveApp(wxPyTimer);
 %name(Timer) class wxPyTimer : public wxEvtHandler
 {
 public:
-    %pythonAppend wxPyTimer         "self._setCallbackInfo(self, Timer, 0); self._setOORInfo(self)"
+    // Don't let the OOR or callback info hold references to the object so
+    // there won't be a reference cycle and it can clean itself up via normal
+    // Python refcounting
+    %pythonAppend wxPyTimer
+        "self._setCallbackInfo(self, Timer, 0); self._setOORInfo(self, 0)"
 
 
     // if you don't call SetOwner() or provide an owner in the contstructor
@@ -66,6 +77,8 @@ public:
     // notification.  If the owner is set then it will get the timer
     // notifications which can be handled with EVT_TIMER.
     wxPyTimer(wxEvtHandler *owner=NULL, int id = -1);
+
+    // Destructor.  
     virtual ~wxPyTimer();
 
     void _setCallbackInfo(PyObject* self, PyObject* _class, int incref=1);
@@ -101,6 +114,11 @@ public:
     // return the timer ID
     int GetId() const;
 
+    %pythoncode {
+        def Destroy():
+            """NO-OP: Timers must be destroyed by normal refrence counting"""
+            pass
+    }
 };