embedded sample's README updates

[wxWidgets.git] / wxPython / src / helpers.cpp

diff --git a/wxPython/src/helpers.cpp b/wxPython/src/helpers.cpp
index 81c954bc70251b3b1feea017ad363c53f2e40f14..7ad042c032e8ae19176080e5de23011e6e24de29 100644 (file)
--- a/wxPython/src/helpers.cpp
+++ b/wxPython/src/helpers.cpp
@@ -723,6 +723,16 @@ void wxPy_ReinitStockObjects(int pass)
     else if (pass == 2) { rsoPass2(#name); } \
     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 
     else if (pass == 2) { rsoPass2(#name); } \
     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 

+    // If there is already an App object then wxPython is probably embedded in
+    // a wx C++ application, so there is no need to do all this.
+    static bool embedded = false;
+    if ((pass == 1 || pass == 2) && wxTheApp) {
+        embedded = true;
+        return;
+    }
+    if (pass == 3 && embedded)
+        return;
+    

 
     REINITOBJ(wxNORMAL_FONT, wxFont);
     REINITOBJ(wxSMALL_FONT, wxFont);
 
     REINITOBJ(wxNORMAL_FONT, wxFont);
     REINITOBJ(wxSMALL_FONT, wxFont);


@@ -1059,15 +1069,14 @@ bool wxPyBeginBlockThreads() {
     // This works in for 2.3, maybe a good alternative to find the needed tstate?
     // PyThreadState *check = PyGILState_GetThisThreadState();  
 
     // This works in for 2.3, maybe a good alternative to find the needed tstate?
     // PyThreadState *check = PyGILState_GetThisThreadState();  
 

-    // get the currect tstate by swapping in NULL and then putting it back.
-    PyThreadState *current = PyThreadState_Swap(NULL);
-    PyThreadState_Swap(current);
+    PyThreadState *current = _PyThreadState_Current;

 
 

-    // Only block if there wasn't alrady a tstate.  This cen happen with
-    // nested calls to wxPyBeginBlockThreads
+    // Only block if there wasn't already a tstate, or if the current one is
+    // not the one we are wanting to change to.  This should prevent deadlock
+    // if there are nested calls to wxPyBeginBlockThreads

     bool blocked = false;
     bool blocked = false;

-    if (current == NULL) {
-        wxPyThreadState* tstate = wxPyGetThreadState();
+    wxPyThreadState* tstate = wxPyGetThreadState();
+    if (current != tstate->tstate) {

         PyEval_RestoreThread(tstate->tstate);
         blocked = true;
     }
         PyEval_RestoreThread(tstate->tstate);
         blocked = true;
     }