]> git.saurik.com Git - wxWidgets.git/blobdiff - wxPython/src/helpers.cpp
Add a set for wxMac too
[wxWidgets.git] / wxPython / src / helpers.cpp
index 24d16eb3521bdffc591d6c65b49d924ceb154bb6..81c954bc70251b3b1feea017ad363c53f2e40f14 100644 (file)
 #include <wx/gtk/win_gtk.h>
 #endif
 
+#ifdef __WXMAC__
+#include <wx/mac/private.h>
+#endif
+
 #include <wx/clipbrd.h>
 #include <wx/mimetype.h>
 #include <wx/image.h>
@@ -132,20 +136,20 @@ int  wxPyApp::MainLoop() {
 bool wxPyApp::OnInitGui() {
     bool rval=True;
     wxApp::OnInitGui();  // in this case always call the base class version
-    wxPyBeginBlockThreads();  
+    bool blocked = wxPyBeginBlockThreads();
     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return rval;
 }
 
 
 int wxPyApp::OnExit() {
     int rval=0;
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     wxApp::OnExit();  // in this case always call the base class version
     return rval;
 }
@@ -169,11 +173,11 @@ void wxPyApp::OnAssert(const wxChar *file,
         }
         wxLogDebug(buf);
         return;
-    }        
-        
+    }
+
     // If the OnAssert is overloaded in the Python class then call it...
     bool found;
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
         PyObject* fso = wx2PyString(file);
         PyObject* cso = wx2PyString(file);
@@ -188,7 +192,7 @@ void wxPyApp::OnAssert(const wxChar *file,
         Py_DECREF(cso);
         Py_DECREF(mso);
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 
     // ...otherwise do our own thing with it
     if (! found) {
@@ -207,11 +211,11 @@ void wxPyApp::OnAssert(const wxChar *file,
             }
 
             // set the exception
-            wxPyBeginBlockThreads();
+            bool blocked = wxPyBeginBlockThreads();
             PyObject* s = wx2PyString(buf);
             PyErr_SetObject(wxPyAssertionError, s);
             Py_DECREF(s);
-            wxPyEndBlockThreads();
+            wxPyEndBlockThreads(blocked);
 
             // Now when control returns to whatever API wrapper was called from
             // Python it should detect that an exception is set and will return
@@ -239,6 +243,44 @@ void wxPyApp::OnAssert(const wxChar *file,
 }
 #endif
 
+    // For catching Apple Events
+void wxPyApp::MacOpenFile(const wxString &fileName)
+{
+    bool blocked = wxPyBeginBlockThreads();
+    if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
+        PyObject* s = wx2PyString(fileName);
+        wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
+        Py_DECREF(s);
+    }
+    wxPyEndBlockThreads(blocked);
+}
+
+void wxPyApp::MacPrintFile(const wxString &fileName)
+{
+    bool blocked = wxPyBeginBlockThreads();
+    if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
+        PyObject* s = wx2PyString(fileName);
+        wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
+        Py_DECREF(s);
+    }
+    wxPyEndBlockThreads(blocked);
+}
+
+void wxPyApp::MacNewFile()
+{
+    bool blocked = wxPyBeginBlockThreads();
+    if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
+        wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
+    wxPyEndBlockThreads(blocked);
+}
+
+void wxPyApp::MacReopenApp()
+{
+    bool blocked = wxPyBeginBlockThreads();
+    if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
+        wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
+    wxPyEndBlockThreads(blocked);
+}
 
 
 /*static*/
@@ -329,12 +371,12 @@ void wxPyApp::_BootstrapApp()
     bool        result;
     PyObject*   retval = NULL;
     PyObject*   pyint  = NULL;
-    
-    
+
+
     // Get any command-line args passed to this program from the sys module
     int    argc = 0;
     char** argv = NULL;
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     PyObject* sysargv = PySys_GetObject("argv");
     if (sysargv != NULL) {
         argc = PyList_Size(sysargv);
@@ -346,12 +388,12 @@ void wxPyApp::_BootstrapApp()
         }
         argv[argc] = NULL;
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 
     result = wxEntryStart(argc, argv);
     delete [] argv;
-    
-    wxPyBeginBlockThreads();
+
+    blocked = wxPyBeginBlockThreads();
     if (! result)  {
         PyErr_SetString(PyExc_SystemError, "wxEntryStart failed!");
         goto error;
@@ -359,14 +401,22 @@ void wxPyApp::_BootstrapApp()
 
     // The stock objects were all NULL when they were loaded into
     // SWIG generated proxies, so re-init those now...
-    wxPy_ReinitStockObjects(False);
+    wxPy_ReinitStockObjects(3);
 
     // It's now ok to generate exceptions for assertion errors.
     wxPythonApp->SetStartupComplete(True);
-    
+
     // Call the Python wxApp's OnInit function
-    if (wxPyCBH_findCallback(m_myInst, "OnInit")) {                
-        retval = wxPyCBH_callCallbackObj(m_myInst, Py_BuildValue("()"));
+    if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
+
+        PyObject* method = m_myInst.GetLastFound();
+        PyObject* argTuple = PyTuple_New(0);
+        retval = PyEval_CallObject(method, argTuple);
+        Py_DECREF(argTuple);
+        Py_DECREF(method);
+        if (retval == NULL)
+            goto error;
+
         pyint = PyNumber_Int(retval);
         if (! pyint) {
             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
@@ -378,8 +428,8 @@ void wxPyApp::_BootstrapApp()
         // Is it okay if there is no OnInit?  Probably so...
         result = True;
     }
-                                                                                    
-    
+
+
     if (! result) {
         PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting...");
     }
@@ -387,8 +437,8 @@ void wxPyApp::_BootstrapApp()
  error:
     Py_XDECREF(retval);
     Py_XDECREF(pyint);
-    
-    wxPyEndBlockThreads();
+
+    wxPyEndBlockThreads(blocked);
 };
 
 //---------------------------------------------------------------------
@@ -464,7 +514,7 @@ void __wxPyPreStart(PyObject* moduleDict)
     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 
     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
-    wxPy_ReinitStockObjects(True);
+    wxPy_ReinitStockObjects(1);
 }
 
 
@@ -510,18 +560,23 @@ PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 
 #ifdef __WXMOTIF__
 #define wxPlatform "__WXMOTIF__"
+#define wxPlatName "wxMotif"
 #endif
 #ifdef __WXX11__
 #define wxPlatform "__WXX11__"
+#define wxPlatName "wxX11"
 #endif
 #ifdef __WXGTK__
 #define wxPlatform "__WXGTK__"
+#define wxPlatName "wxGTK"
 #endif
-#if defined(__WIN32__) || defined(__WXMSW__)
+#ifdef __WXMSW__
 #define wxPlatform "__WXMSW__"
+#define wxPlatName "wxMSW"
 #endif
 #ifdef __WXMAC__
 #define wxPlatform "__WXMAC__"
+#define wxPlatName "wxMac"
 #endif
 
 #ifdef __WXDEBUG__
@@ -530,10 +585,41 @@ PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
     int wxdebug = 0;
 #endif
 
+    // These should be deprecated in favor of the PlatformInfo tuple built below...
     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 
+    
+    PyObject* PlatInfo = PyList_New(0);
+    PyObject* obj;
+
+#define _AddInfoString(st) \
+    obj = PyString_FromString(st); \
+    PyList_Append(PlatInfo, obj); \
+    Py_DECREF(obj)
+
+    _AddInfoString(wxPlatform);
+    _AddInfoString(wxPlatName);
+#if wxUSE_UNICODE
+    _AddInfoString("unicode");
+#else
+    _AddInfoString("ascii");
+#endif
+#ifdef __WXGTK__
+#ifdef __WXGTK20__
+    _AddInfoString("gtk2");
+#else
+    _AddInfoString("gtk1");
+#endif
+#endif
+
+#undef _AddInfoString
+
+    PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
+    Py_DECREF(PlatInfo);
+    PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
+    
     RETURN_NONE();
 }
 
@@ -556,33 +642,86 @@ bool wxPySwigInstance_Check(PyObject* obj) {
 
 //---------------------------------------------------------------------------
 
-// The stock objects are no longer created when the wxc module is imported, but
-// only after the app object has been created.  This function will be called before
-// OnInit is called so we can hack the new pointer values into the obj.this attributes.
+// The stock objects are no longer created when the wxc module is imported,
+// but only after the app object has been created.  The
+// wxPy_ReinitStockObjects function will be called 3 times to pass the stock
+// objects though various stages of evolution:
+//
+//   pass 1: Set all the pointers to a non-NULL value so the Python proxy
+//           object will be created (otherwise it will just use None.)
+//
+//   pass 2: After the module has been imported and the python proxys have
+//           been created, then set the __class__ to be _wxPyUnbornObject so
+//           it will catch any access to the object and will raise an exception.
+//
+//   pass 3: Finally, from OnInit patch things up so the stock objects can
+//           be used.
+
+
+PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
+{
+    wxPy_ReinitStockObjects(2);
+    RETURN_NONE();
+}
+
+
+static void rsoPass2(const char* name)
+{
+    static PyObject* unbornObjectClass = NULL;
+    PyObject* obj;
+
+    if (unbornObjectClass == NULL) {
+        unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
+        Py_INCREF(unbornObjectClass);
+    }
+
+    // Find the object instance
+    obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
+    wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
+    wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 
-void wxPy_ReinitStockObjects(bool init)
+    // Change its class
+    PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
+
+}
+
+static void rsoPass3(const char* name, const char* classname, void* ptr)
 {
     PyObject* obj;
+    PyObject* classobj;
     PyObject* ptrobj;
 
+    // Find the object instance
+    obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
+    wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
+    wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
+
+    // Find the class object and put it back in the instance
+    classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
+    wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
+    PyObject_SetAttrString(obj, "__class__",  classobj);
+
+    // Rebuild the .this swigified pointer with the new value of the C++ pointer
+    ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
+    PyObject_SetAttrString(obj, "this", ptrobj);
+    Py_DECREF(ptrobj);
+}
+
+
+
+void wxPy_ReinitStockObjects(int pass)
+{
 
 #define REINITOBJ(name, classname) \
-    if ( init ) { name = (classname*)0xC0C0C0C0; } else { \
-    obj = PyDict_GetItemString(wxPython_dict, dropwx(#name)); \
-    wxCHECK_RET(obj != NULL, wxT("Unable to find stock object for " #name)) \
-    wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance: " #name)); \
-    ptrobj = wxPyMakeSwigPtr((void*)name, wxT(#classname)); \
-    PyObject_SetAttrString(obj, "this", ptrobj); \
-    Py_DECREF(ptrobj); }
+    if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
+    else if (pass == 2) { rsoPass2(#name); } \
+    else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
+
 
 #define REINITOBJ2(name, classname) \
-    if ( init ) { } else { \
-    obj = PyDict_GetItemString(wxPython_dict, dropwx(#name)); \
-    wxCHECK_RET(obj != NULL, wxT("Unable to find stock object for " #name)) \
-    wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance: " #name)); \
-    ptrobj = wxPyMakeSwigPtr((void*)&name, wxT(#classname)); \
-    PyObject_SetAttrString(obj, "this", ptrobj); \
-    Py_DECREF(ptrobj); }
+    if (pass == 1) { } \
+    else if (pass == 2) { rsoPass2(#name); } \
+    else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 
 
     REINITOBJ(wxNORMAL_FONT, wxFont);
@@ -653,19 +792,19 @@ void wxPy_ReinitStockObjects(bool init)
 void wxPyClientData_dtor(wxPyClientData* self) {
     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
                                         // may have already garbage collected the object...
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         Py_DECREF(self->m_obj);
         self->m_obj = NULL;
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
     }
 }
 
 void wxPyUserData_dtor(wxPyUserData* self) {
     if (! wxPyDoingCleanup) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         Py_DECREF(self->m_obj);
         self->m_obj = NULL;
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
     }
 }
 
@@ -682,7 +821,7 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 
     static PyObject* deadObjectClass = NULL;
 
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     if (deadObjectClass == NULL) {
         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
@@ -708,10 +847,10 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) {
         if (PyErr_Occurred())
             PyErr_Clear();      // just ignore it for now
 
-        
+
         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
         if (dict) {
-            // Clear the instance's dictionary 
+            // Clear the instance's dictionary
             PyDict_Clear(dict);
 
             // put the name of the old class into the instance, and then reset the
@@ -727,7 +866,7 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) {
     }
 
     // m_obj is DECREF'd in the base class dtor...
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 }
 
 
@@ -834,21 +973,21 @@ unsigned long wxPyGetCurrentThreadId() {
     return wxThread::GetCurrentId();
 }
 
-static PyThreadState* gs_shutdownTState;
+static wxPyThreadState gs_shutdownTState;
 
 static
-PyThreadState* wxPyGetThreadState() {
+wxPyThreadState* wxPyGetThreadState() {
     if (wxPyTMutex == NULL) // Python is shutting down...
-        return gs_shutdownTState;
+        return &gs_shutdownTState;
 
     unsigned long ctid = wxPyGetCurrentThreadId();
-    PyThreadState* tstate = NULL;
+    wxPyThreadState* tstate = NULL;
 
     wxPyTMutex->Lock();
     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
         wxPyThreadState& info = wxPyTStates->Item(i);
         if (info.tid == ctid) {
-            tstate = info.tstate;
+            tstate = &info;
             break;
         }
     }
@@ -857,10 +996,11 @@ PyThreadState* wxPyGetThreadState() {
     return tstate;
 }
 
+
 static
 void wxPySaveThreadState(PyThreadState* tstate) {
     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
-        gs_shutdownTState = tstate;
+        gs_shutdownTState.tstate = tstate;
         return;
     }
     unsigned long ctid = wxPyGetCurrentThreadId();
@@ -889,6 +1029,7 @@ void wxPySaveThreadState(PyThreadState* tstate) {
 #endif
 
 
+
 // Calls from Python to wxWindows code are wrapped in calls to these
 // functions:
 
@@ -913,19 +1054,36 @@ void wxPyEndAllowThreads(PyThreadState* saved) {
 // Calls from wxWindows back to Python code, or even any PyObject
 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 
-void wxPyBeginBlockThreads() {
+bool wxPyBeginBlockThreads() {
 #ifdef WXP_WITH_THREAD
-    PyThreadState* tstate = wxPyGetThreadState();
-    PyEval_RestoreThread(tstate);
+    // 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);
+
+    // Only block if there wasn't alrady a tstate.  This cen happen with
+    // nested calls to wxPyBeginBlockThreads
+    bool blocked = false;
+    if (current == NULL) {
+        wxPyThreadState* tstate = wxPyGetThreadState();
+        PyEval_RestoreThread(tstate->tstate);
+        blocked = true;
+    }
+    return blocked;
 #endif
 }
 
 
-void wxPyEndBlockThreads() {
+void wxPyEndBlockThreads(bool blocked) {
 #ifdef WXP_WITH_THREAD
-    // Is there any need to save it again?
-    // PyThreadState* tstate =
-    PyEval_SaveThread();
+    // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
+    // The value of blocked passed in needs to be the same as that returned
+    // from wxPyBeginBlockThreads at the same nesting level.
+    if ( blocked ) {
+        PyEval_SaveThread();
+    }
 #endif
 }
 
@@ -963,9 +1121,9 @@ PyObject* wxPyInputStream::read(int size) {
 
     // check if we have a real wxInputStream to work with
     if (!m_wxis) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
@@ -982,7 +1140,7 @@ PyObject* wxPyInputStream::read(int size) {
     }
 
     // error check
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     wxStreamError err = m_wxis->GetLastError();
     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
@@ -991,7 +1149,7 @@ PyObject* wxPyInputStream::read(int size) {
         // We use only strings for the streams, not unicode
         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return obj;
 }
 
@@ -1004,9 +1162,9 @@ PyObject* wxPyInputStream::readline(int size) {
 
     // check if we have a real wxInputStream to work with
     if (!m_wxis) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
@@ -1017,7 +1175,7 @@ PyObject* wxPyInputStream::readline(int size) {
     }
 
     // errorcheck
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     wxStreamError err = m_wxis->GetLastError();
     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
@@ -1026,7 +1184,7 @@ PyObject* wxPyInputStream::readline(int size) {
         // We use only strings for the streams, not unicode
         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return obj;
 }
 
@@ -1036,19 +1194,21 @@ PyObject* wxPyInputStream::readlines(int sizehint) {
 
     // check if we have a real wxInputStream to work with
     if (!m_wxis) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
     // init list
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     pylist = PyList_New(0);
+    wxPyEndBlockThreads(blocked);
+    
     if (!pylist) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         PyErr_NoMemory();
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
@@ -1057,24 +1217,24 @@ PyObject* wxPyInputStream::readlines(int sizehint) {
     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
         PyObject* s = this->readline();
         if (s == NULL) {
-            wxPyBeginBlockThreads();
+            bool blocked = wxPyBeginBlockThreads();
             Py_DECREF(pylist);
-            wxPyEndBlockThreads();
+            wxPyEndBlockThreads(blocked);
             return NULL;
         }
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         PyList_Append(pylist, s);
         i += PyString_Size(s);
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
     }
 
     // error check
     wxStreamError err = m_wxis->GetLastError();
     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         Py_DECREF(pylist);
         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
@@ -1102,16 +1262,18 @@ wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool
 
 
 wxPyCBInputStream::~wxPyCBInputStream() {
-    if (m_block) wxPyBeginBlockThreads();
+    bool blocked;
+    if (m_block) blocked = wxPyBeginBlockThreads();
     Py_XDECREF(m_read);
     Py_XDECREF(m_seek);
     Py_XDECREF(m_tell);
-    if (m_block) wxPyEndBlockThreads();
+    if (m_block) wxPyEndBlockThreads(blocked);
 }
 
 
 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
-    if (block) wxPyBeginBlockThreads();
+    bool blocked;
+    if (block) blocked = wxPyBeginBlockThreads();
 
     PyObject* read = getMethod(py, "read");
     PyObject* seek = getMethod(py, "seek");
@@ -1122,11 +1284,11 @@ wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
         Py_XDECREF(read);
         Py_XDECREF(seek);
         Py_XDECREF(tell);
-        if (block) wxPyEndBlockThreads();
+        if (block) wxPyEndBlockThreads(blocked);
         return NULL;
     }
 
-    if (block) wxPyEndBlockThreads();
+    if (block) wxPyEndBlockThreads(blocked);
     return new wxPyCBInputStream(read, seek, tell, block);
 }
 
@@ -1164,7 +1326,7 @@ size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
     if (bufsize == 0)
         return 0;
 
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     PyObject* arglist = Py_BuildValue("(i)", bufsize);
     PyObject* result = PyEval_CallObject(m_read, arglist);
     Py_DECREF(arglist);
@@ -1182,7 +1344,7 @@ size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
     }
     else
         m_lasterror = wxSTREAM_READ_ERROR;
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return o;
 }
 
@@ -1192,7 +1354,7 @@ size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
 }
 
 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
 #ifdef _LARGE_FILES
     // off_t is a 64-bit value...
     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
@@ -1202,13 +1364,13 @@ off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
     PyObject* result = PyEval_CallObject(m_seek, arglist);
     Py_DECREF(arglist);
     Py_XDECREF(result);
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return OnSysTell();
 }
 
 
 off_t wxPyCBInputStream::OnSysTell() const {
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     PyObject* arglist = Py_BuildValue("()");
     PyObject* result = PyEval_CallObject(m_tell, arglist);
     Py_DECREF(arglist);
@@ -1218,12 +1380,11 @@ off_t wxPyCBInputStream::OnSysTell() const {
         if (PyLong_Check(result))
             o = PyLong_AsLongLong(result);
         else
-#else
-        o = PyInt_AsLong(result);
 #endif
+            o = PyInt_AsLong(result);
         Py_DECREF(result);
     };
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return o;
 }
 
@@ -1242,12 +1403,14 @@ wxPyCallback::wxPyCallback(const wxPyCallback& other) {
 }
 
 wxPyCallback::~wxPyCallback() {
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     Py_DECREF(m_func);
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 }
 
 
+#define wxPy_PRECALLINIT     "_preCallInit"
+#define wxPy_POSTCALLCLEANUP "_postCallCleanup"
 
 // This function is used for all events destined for Python event handlers.
 void wxPyCallback::EventThunker(wxEvent& event) {
@@ -1258,7 +1421,7 @@ void wxPyCallback::EventThunker(wxEvent& event) {
     PyObject*       tuple;
     bool            checkSkip = False;
 
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     wxString className = event.GetClassInfo()->GetClassName();
 
     // If the event is one of these types then pass the original
@@ -1275,32 +1438,65 @@ void wxPyCallback::EventThunker(wxEvent& event) {
         arg = wxPyConstructObject((void*)&event, className);
     }
 
-    // Call the event handler, passing the event object
-    tuple = PyTuple_New(1);
-    PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
-    result = PyEval_CallObject(func, tuple);
-    if ( result ) {
-        Py_DECREF(result);   // result is ignored, but we still need to decref it
-        PyErr_Clear();       // Just in case...
-    } else {
+    if (!arg) {
         PyErr_Print();
-    }
-
-    if ( checkSkip ) {
-        // if the event object was one of our special types and
-        // it had been cloned, then we need to extract the Skipped
-        // value from the original and set it in the clone.
-        result = PyObject_CallMethod(arg, "GetSkipped", "");
+    } else {
+        // "intern" the pre/post method names to speed up the HasAttr
+        static PyObject* s_preName  = NULL;
+        static PyObject* s_postName = NULL;
+        if (s_preName == NULL) {
+            s_preName  = PyString_FromString(wxPy_PRECALLINIT);
+            s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
+        }
+        
+        // Check if the event object needs some preinitialization
+        if (PyObject_HasAttr(arg, s_preName)) {
+            result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
+            if ( result ) {
+                Py_DECREF(result);   // result is ignored, but we still need to decref it
+                PyErr_Clear();       // Just in case...
+            } else {
+                PyErr_Print();
+            }            
+        }
+        
+        // Call the event handler, passing the event object
+        tuple = PyTuple_New(1);
+        PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
+        result = PyEval_CallObject(func, tuple);
         if ( result ) {
-            event.Skip(PyInt_AsLong(result));
-            Py_DECREF(result);
+            Py_DECREF(result);   // result is ignored, but we still need to decref it
+            PyErr_Clear();       // Just in case...
         } else {
             PyErr_Print();
         }
-    }
 
-    Py_DECREF(tuple);
-    wxPyEndBlockThreads();
+        // Check if the event object needs some post cleanup
+        if (PyObject_HasAttr(arg, s_postName)) {
+            result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
+            if ( result ) {
+                Py_DECREF(result);   // result is ignored, but we still need to decref it
+                PyErr_Clear();       // Just in case...
+            } else {
+                PyErr_Print();
+            }            
+        }
+
+        if ( checkSkip ) {
+            // if the event object was one of our special types and
+            // it had been cloned, then we need to extract the Skipped
+            // value from the original and set it in the clone.
+            result = PyObject_CallMethod(arg, "GetSkipped", "");
+            if ( result ) {
+                event.Skip(PyInt_AsLong(result));
+                Py_DECREF(result);
+            } else {
+                PyErr_Print();
+            }
+        }
+        Py_DECREF(tuple);
+    }
+    wxPyEndBlockThreads(blocked);
 }
 
 
@@ -1447,7 +1643,7 @@ int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
 }
 
 // Invoke the Python callable object, returning the raw PyObject return
-// value.  Caller should DECREF the return value and also call PyEval_SaveThread.
+// value.  Caller should DECREF the return value and also manage the GIL.
 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
     PyObject* result;
 
@@ -1485,10 +1681,10 @@ PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTu
 
 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
     if (cbh->m_incRef) {
-        wxPyBeginBlockThreads();
+        bool blocked = wxPyBeginBlockThreads();
         Py_XDECREF(cbh->m_self);
         Py_XDECREF(cbh->m_class);
-        wxPyEndBlockThreads();
+        wxPyEndBlockThreads(blocked);
     }
 }
 
@@ -1506,14 +1702,14 @@ wxPyEvtSelfRef::wxPyEvtSelfRef() {
 }
 
 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 }
 
 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
     m_self = self;
@@ -1521,7 +1717,7 @@ void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
         Py_INCREF(m_self);
         m_cloned = True;
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
 }
 
 PyObject* wxPyEvtSelfRef::GetSelf() const {
@@ -1580,21 +1776,22 @@ PyObject* wxPy_ConvertList(wxListBase* listbase) {
     wxObject*   wxObj;
     wxNode*     node = list->GetFirst();
 
-    wxPyBeginBlockThreads();
+    bool blocked = wxPyBeginBlockThreads();
     pyList = PyList_New(0);
     while (node) {
         wxObj = node->GetData();
-        pyObj = wxPyMake_wxObject(wxObj); 
+        pyObj = wxPyMake_wxObject(wxObj);
         PyList_Append(pyList, pyObj);
         node = node->GetNext();
     }
-    wxPyEndBlockThreads();
+    wxPyEndBlockThreads(blocked);
     return pyList;
 }
 
 //----------------------------------------------------------------------
 
 long wxPyGetWinHandle(wxWindow* win) {
+
 #ifdef __WXMSW__
     return (long)win->GetHandle();
 #endif
@@ -1612,6 +1809,11 @@ long wxPyGetWinHandle(wxWindow* win) {
 #endif
     }
 #endif
+
+#ifdef __WXMAC__
+    return (long)MAC_WXHWND(win->MacGetRootWindow());
+#endif
+
     return 0;
 }
 
@@ -2132,7 +2334,7 @@ bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
 {
     void* ptr;
-    
+
     if (wxPySwigInstance_Check(source) &&
         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
         return True;
@@ -2140,18 +2342,26 @@ bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
     PyErr_Clear();
     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
         return True;
-    
+
     return False;
-}    
+}
 
 bool wxSize_helper(PyObject* source, wxSize** obj)
 {
+    if (source == Py_None) {
+        **obj = wxSize(-1,-1);
+        return True;
+    }
     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
 }
 
 
 bool wxPoint_helper(PyObject* source, wxPoint** obj)
 {
+    if (source == Py_None) {
+        **obj = wxPoint(-1,-1);
+        return True;
+    }
     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
 }
 
@@ -2159,6 +2369,11 @@ bool wxPoint_helper(PyObject* source, wxPoint** obj)
 
 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
 
+    if (source == Py_None) {
+        **obj = wxRealPoint(-1,-1);
+        return True;
+    }
+
     // If source is an object instance then it may already be the right type
     if (wxPySwigInstance_Check(source)) {
         wxRealPoint* ptr;
@@ -2191,6 +2406,11 @@ bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
 
 bool wxRect_helper(PyObject* source, wxRect** obj) {
 
+    if (source == Py_None) {
+        **obj = wxRect(-1,-1,-1,-1);
+        return True;
+    }
+
     // If source is an object instance then it may already be the right type
     if (wxPySwigInstance_Check(source)) {
         wxRect* ptr;
@@ -2231,6 +2451,11 @@ bool wxRect_helper(PyObject* source, wxRect** obj) {
 
 bool wxColour_helper(PyObject* source, wxColour** obj) {
 
+    if (source == Py_None) {
+        **obj = wxNullColour;
+        return True;
+    }
+
     // If source is an object instance then it may already be the right type
     if (wxPySwigInstance_Check(source)) {
         wxColour* ptr;
@@ -2289,13 +2514,19 @@ bool wxColour_typecheck(PyObject* source) {
 
     if (PyString_Check(source) || PyUnicode_Check(source))
         return True;
-    
-    return False;   
+
+    return False;
 }
 
 
 
 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
+
+    if (source == Py_None) {
+        **obj = wxPoint2D(-1,-1);
+        return True;
+    }
+
     // If source is an object instance then it may already be the right type
     if (wxPySwigInstance_Check(source)) {
         wxPoint2D* ptr;