Changed (again) how the GIL is aquired and the tstate restored. This

time it's simpler, better, and handles the case where there is a wx
calback/event while the GIL has been released by a non-wxPython
extension module.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26324 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_artprov.i

@@ -75,7 +75,7 @@ public:
                                   const wxArtClient& client,
                                   const wxSize& size) {
         wxBitmap rval = wxNullBitmap;
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         if ((wxPyCBH_findCallback(m_myInst, "CreateBitmap"))) {
             PyObject* so = wxPyConstructObject((void*)&size, wxT("wxSize"), 0);
             PyObject* ro;
@@ -93,7 +93,7 @@ public:
                 Py_DECREF(ro);
             }
         }
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return rval;
     }