X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3a70a28254eb0651270484e7db465ddc2ee7e548..4649b5eded522cdc6d76aae074f98a2c162fd648:/wxPython/src/helpers.cpp

diff --git a/wxPython/src/helpers.cpp b/wxPython/src/helpers.cpp
index cc9f305418..0d7aa40850 100644
--- a/wxPython/src/helpers.cpp
+++ b/wxPython/src/helpers.cpp
@@ -29,12 +29,6 @@
 #include <gtk/gtk.h>
 #include <gdk/gdkprivate.h>
 #include <wx/gtk/win_gtk.h>
-//#include <gdk/gdk.h>
-//#include <gdk/gdkx.h>
-//#include <gtk/gtkwindow.h>
-
-//extern GtkWidget *wxRootWindow;
-
 #endif
 
 
@@ -107,7 +101,8 @@ void WXDLLEXPORT wxEntryCleanup();
 
 
 #ifdef WXP_WITH_THREAD
-PyThreadState*  wxPyEventThreadState = NULL;
+//PyThreadState*  wxPyEventThreadState = NULL;
+PyInterpreterState* wxPyInterpreter = NULL;
 #endif
 
 
@@ -123,7 +118,8 @@ void __wxPreStart()
 
 #ifdef WXP_WITH_THREAD
     PyEval_InitThreads();
-    wxPyEventThreadState = PyThreadState_Get();
+//    wxPyEventThreadState = PyThreadState_Get(); // PyThreadState_New(PyThreadState_Get()->interp);
+    wxPyInterpreter = PyThreadState_Get()->interp;
 #endif
 
     // Bail out if there is already windows created.  This means that the
@@ -133,13 +129,17 @@ void __wxPreStart()
         return;
 
 
+    int argc = 0;
+    char** argv = NULL;
     PyObject* sysargv = PySys_GetObject("argv");
-    int argc = PyList_Size(sysargv);
-    char** argv = new char*[argc+1];
-    int x;
-    for(x=0; x<argc; x++)
-        argv[x] = PyString_AsString(PyList_GetItem(sysargv, x));
-    argv[argc] = NULL;
+    if (sysargv != NULL) {
+        argc = PyList_Size(sysargv);
+        argv = new char*[argc+1];
+        int x;
+        for(x=0; x<argc; x++)
+            argv[x] = copystring(PyString_AsString(PyList_GetItem(sysargv, x)));
+        argv[argc] = NULL;
+    }
 
     wxEntryStart(argc, argv);
     delete [] argv;
@@ -158,7 +158,7 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args)
     if (!PyArg_ParseTuple(args, "O", &onInitFunc))
         return NULL;
 
-#if 0  // Try it out without this check, soo how it does...
+#if 0  // Try it out without this check, see how it does...
     if (wxTopLevelWindows.Number() > 0) {
         PyErr_SetString(PyExc_TypeError, "Only 1 wxApp per process!");
         return NULL;
@@ -166,14 +166,17 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args)
 #endif
 
     // This is the next part of the wxEntry functionality...
+    int argc = 0;
+    char** argv = NULL;
     PyObject* sysargv = PySys_GetObject("argv");
-    int argc = PyList_Size(sysargv);
-    char** argv = new char*[argc+1];
-    int x;
-    for(x=0; x<argc; x++)
-        argv[x] = copystring(PyString_AsString(PyList_GetItem(sysargv, x)));
-    argv[argc] = NULL;
-
+    if (sysargv != NULL) {
+        argc = PyList_Size(sysargv);
+        argv = new char*[argc+1];
+        int x;
+        for(x=0; x<argc; x++)
+            argv[x] = copystring(PyString_AsString(PyList_GetItem(sysargv, x)));
+        argv[argc] = NULL;
+    }
     wxPythonApp->argc = argc;
     wxPythonApp->argv = argv;
 
@@ -210,7 +213,9 @@ void __wxCleanup() {
 
 
 
-PyObject* wxPython_dict;
+static PyObject* wxPython_dict = NULL;
+static PyObject* wxPyPtrTypeMap = NULL;
+
 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 {
 
@@ -221,6 +226,12 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
         PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
         return NULL;
     }
+
+    if (! wxPyPtrTypeMap)
+        wxPyPtrTypeMap = PyDict_New();
+    PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
+
+
 #ifdef __WXMOTIF__
 #define wxPlatform "__WXMOTIF__"
 #endif
@@ -244,13 +255,103 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 }
 
 
+//---------------------------------------------------------------------------
+// Stuff used by OOR to find the right wxPython class type to return and to
+// build it.
+
+
+// The pointer type map is used when the "pointer" type name generated by SWIG
+// is not the same as the shadow class name, for example wxPyTreeCtrl
+// vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
+// so we'll just make it a Python dictionary in the wx module's namespace.
+void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
+    if (! wxPyPtrTypeMap)
+        wxPyPtrTypeMap = PyDict_New();
+
+    PyDict_SetItemString(wxPyPtrTypeMap,
+                         (char*)commonName,
+                         PyString_FromString((char*)ptrName));
+}
+
+
+
+PyObject* wxPyClassExists(const char* className) {
+
+    if (!className)
+        return NULL;
+
+    char    buff[64];               // should always be big enough...
+
+    sprintf(buff, "%sPtr", className);
+    PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
+
+    return classobj;  // returns NULL if not found
+}
+
+
+PyObject*  wxPyMake_wxObject(wxObject* source) {
+    PyObject* target;
+
+    if (source) {
+        wxClassInfo* info = source->GetClassInfo();
+        wxChar*      name = (wxChar*)info->GetClassName();
+        PyObject*    klass = wxPyClassExists(name);
+        while (info && !klass) {
+            name = (wxChar*)info->GetBaseClassName1();
+            info = wxClassInfo::FindClass(name);
+            klass = wxPyClassExists(name);
+        }
+        if (info) {
+            target = wxPyConstructObject(source, name, klass, FALSE);
+        } else {
+            wxString msg("wxPython class not found for ");
+            msg += source->GetClassInfo()->GetClassName();
+            PyErr_SetString(PyExc_NameError, msg.c_str());
+            target = NULL;
+        }
+    } else {  // source was NULL so return None.
+        Py_INCREF(Py_None); target = Py_None;
+    }
+    return target;
+}
+
 //---------------------------------------------------------------------------
 
 PyObject* wxPyConstructObject(void* ptr,
                               const char* className,
+                              PyObject* klass,
                               int setThisOwn) {
+
     PyObject* obj;
     PyObject* arg;
+    PyObject* item;
+    char      swigptr[64];      // should always be big enough...
+    char      buff[64];
+
+    if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)className)) != NULL) {
+        className = PyString_AsString(item);
+    }
+    sprintf(buff, "_%s_p", className);
+    SWIG_MakePtr(swigptr, ptr, buff);
+
+    arg = Py_BuildValue("(s)", swigptr);
+    obj = PyInstance_New(klass, arg, NULL);
+    Py_DECREF(arg);
+
+    if (setThisOwn) {
+        PyObject* one = PyInt_FromLong(1);
+        PyObject_SetAttrString(obj, "thisown", one);
+        Py_DECREF(one);
+    }
+
+    return obj;
+}
+
+
+PyObject* wxPyConstructObject(void* ptr,
+                              const char* className,
+                              int setThisOwn) {
+    PyObject* obj;
 
     if (!ptr) {
         Py_INCREF(Py_None);
@@ -258,16 +359,10 @@ PyObject* wxPyConstructObject(void* ptr,
     }
 
     char    buff[64];               // should always be big enough...
-    char    swigptr[64];
-
-    sprintf(buff, "_%s_p", className);
-    SWIG_MakePtr(swigptr, ptr, buff);
 
     sprintf(buff, "%sPtr", className);
     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
     if (! classobj) {
-        //Py_INCREF(Py_None);
-        //return Py_None;
         char temp[128];
         sprintf(temp,
                 "*** Unknown class name %s, tell Robin about it please ***",
@@ -276,58 +371,76 @@ PyObject* wxPyConstructObject(void* ptr,
         return obj;
     }
 
-    arg = Py_BuildValue("(s)", swigptr);
-    obj = PyInstance_New(classobj, arg, NULL);
-    Py_DECREF(arg);
-
-    if (setThisOwn) {
-        PyObject* one = PyInt_FromLong(1);
-        PyObject_SetAttrString(obj, "thisown", one);
-        Py_DECREF(one);
-    }
-
-    return obj;
+    return wxPyConstructObject(ptr, className, classobj, setThisOwn);
 }
 
 //---------------------------------------------------------------------------
 
-static PyThreadState* myPyThreadState_Get() {
-    PyThreadState* current;
-    current = PyThreadState_Swap(NULL);
-    PyThreadState_Swap(current);
-    return current;
-}
-
-
-bool wxPyRestoreThread() {
-    // NOTE: The Python API docs state that if a thread already has the
-    // interpreter lock and calls PyEval_RestoreThread again a deadlock
-    // occurs, so I put in this code as a guard condition since there are
-    // many possibilites for nested events and callbacks in wxPython.  If
-    // The current thread is our thread, then we can assume that we
-    // already have the lock.  (I hope!)
-    //
+//  static PyThreadState* myPyThreadState_Get() {
+//      PyThreadState* current;
+//      current = PyThreadState_Swap(NULL);
+//      PyThreadState_Swap(current);
+//      return current;
+//  }
+
+
+//  bool wxPyRestoreThread() {
+//      // NOTE: The Python API docs state that if a thread already has the
+//      // interpreter lock and calls PyEval_RestoreThread again a deadlock
+//      // occurs, so I put in this code as a guard condition since there are
+//      // many possibilites for nested events and callbacks in wxPython.  If
+//      // The current thread is our thread, then we can assume that we
+//      // already have the lock.  (I hope!)
+//      //
+//  #ifdef WXP_WITH_THREAD
+//      if (wxPyEventThreadState != myPyThreadState_Get()) {
+//          PyEval_AcquireThread(wxPyEventThreadState);
+//          return TRUE;
+//      }
+//      else
+//  #endif
+//          return FALSE;
+//  }
+
+
+//  void wxPySaveThread(bool doSave) {
+//  #ifdef WXP_WITH_THREAD
+//      if (doSave) {
+//          PyEval_ReleaseThread(wxPyEventThreadState);
+//      }
+//  #endif
+//  }
+
+
+
+wxPyTState* wxPyBeginBlockThreads() {
+    wxPyTState* state = NULL;
 #ifdef WXP_WITH_THREAD
-    if (wxPyEventThreadState != myPyThreadState_Get()) {
-        PyEval_RestoreThread(wxPyEventThreadState);
-        return TRUE;
+    if (1) {   // Can I check if I've already got the lock?
+        state = new wxPyTState;
+        PyEval_AcquireLock();
+        state->newState = PyThreadState_New(wxPyInterpreter);
+        state->prevState = PyThreadState_Swap(state->newState);
     }
-    else
 #endif
-        return FALSE;
+    return state;
 }
 
 
-void wxPySaveThread(bool doSave) {
+void wxPyEndBlockThreads(wxPyTState* state) {
 #ifdef WXP_WITH_THREAD
-    if (doSave) {
-        wxPyEventThreadState = PyEval_SaveThread();
+    if (state) {
+        PyThreadState_Swap(state->prevState);
+        PyThreadState_Clear(state->newState);
+        PyEval_ReleaseLock();
+        PyThreadState_Delete(state->newState);
+        delete state;
     }
 #endif
 }
 
-//---------------------------------------------------------------------------
 
+//---------------------------------------------------------------------------
 
 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
 
@@ -342,9 +455,9 @@ wxPyCallback::wxPyCallback(const wxPyCallback& other) {
 }
 
 wxPyCallback::~wxPyCallback() {
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     Py_DECREF(m_func);
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
 }
 
 
@@ -358,7 +471,7 @@ void wxPyCallback::EventThunker(wxEvent& event) {
     PyObject*       tuple;
 
 
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     wxString className = event.GetClassInfo()->GetClassName();
 
     if (className == "wxPyEvent")
@@ -374,11 +487,11 @@ void wxPyCallback::EventThunker(wxEvent& event) {
     Py_DECREF(tuple);
     if (result) {
         Py_DECREF(result);
-        PyErr_Clear();
+        PyErr_Clear();       // Just in case...
     } else {
         PyErr_Print();
     }
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
 }
 
 
@@ -481,12 +594,12 @@ PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTu
 
 
 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
-    bool doSave = wxPyRestoreThread();
     if (cbh->m_incRef) {
+        wxPyTState* state = wxPyBeginBlockThreads();
         Py_XDECREF(cbh->m_self);
         Py_XDECREF(cbh->m_class);
+        wxPyEndBlockThreads(state);
     }
-    wxPySaveThread(doSave);
 }
 
 //---------------------------------------------------------------------------
@@ -503,14 +616,14 @@ wxPyEvtSelfRef::wxPyEvtSelfRef() {
 }
 
 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
 }
 
 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
     m_self = self;
@@ -518,7 +631,7 @@ void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
         Py_INCREF(m_self);
         m_cloned = TRUE;
     }
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
 }
 
 PyObject* wxPyEvtSelfRef::GetSelf() const {
@@ -571,9 +684,9 @@ wxPyTimer::wxPyTimer(PyObject* callback) {
 }
 
 wxPyTimer::~wxPyTimer() {
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     Py_DECREF(func);
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
 }
 
 void wxPyTimer::Notify() {
@@ -581,7 +694,7 @@ void wxPyTimer::Notify() {
         wxTimer::Notify();
     }
     else {
-        bool doSave = wxPyRestoreThread();
+        wxPyTState* state = wxPyBeginBlockThreads();
 
         PyObject*   result;
         PyObject*   args = Py_BuildValue("()");
@@ -595,7 +708,7 @@ void wxPyTimer::Notify() {
             PyErr_Print();
         }
 
-        wxPySaveThread(doSave);
+        wxPyEndBlockThreads(state);
     }
 }
 
@@ -611,15 +724,15 @@ PyObject* wxPy_ConvertList(wxListBase* list, const char* className) {
     wxObject*   wxObj;
     wxNode*     node = list->First();
 
-    bool doSave = wxPyRestoreThread();
+    wxPyTState* state = wxPyBeginBlockThreads();
     pyList = PyList_New(0);
     while (node) {
         wxObj = node->Data();
-        pyObj = wxPyConstructObject(wxObj, className);
+        pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
         PyList_Append(pyList, pyObj);
         node = node->Next();
     }
-    wxPySaveThread(doSave);
+    wxPyEndBlockThreads(state);
     return pyList;
 }
 
@@ -738,43 +851,120 @@ char** string_LIST_helper(PyObject* source) {
     return temp;
 }
 
+//--------------------------------
+// Part of patch from Tim Hochberg
+static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
+    if (PyInt_Check(o1) && PyInt_Check(o2)) {
+        point->x = PyInt_AS_LONG(o1);
+        point->y = PyInt_AS_LONG(o2);
+        return true;
+    }
+    if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
+        point->x = (int)PyFloat_AS_DOUBLE(o1);
+        point->y = (int)PyFloat_AS_DOUBLE(o2);
+        return true;
+    }
+    if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
+        // Disallow instances because they can cause havok
+        return false;
+    }
+    if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
+        // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
+        point->x = PyInt_AsLong(o1);
+        point->y = PyInt_AsLong(o2);
+        return true;
+    }
+    return false;
+}
 
 
-wxPoint* wxPoint_LIST_helper(PyObject* source) {
-    if (!PyList_Check(source)) {
-        PyErr_SetString(PyExc_TypeError, "Expected a list object.");
-        return NULL;
+#if PYTHON_API_VERSION < 1009
+#define PySequence_Fast_GET_ITEM(o, i)\
+     (PyList_Check(o) ? PyList_GET_ITEM(o, i) : PyTuple_GET_ITEM(o, i))
+#endif
+
+wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
+    // Putting all of the declarations here allows
+    // us to put the error handling all in one place.
+    int x;
+    wxPoint* temp;
+    PyObject *o, *o1, *o2;
+    int isFast = PyList_Check(source) || PyTuple_Check(source);
+
+    // The length of the sequence is returned in count.
+    if (!PySequence_Check(source)) {
+        goto error0;
     }
-    int count = PyList_Size(source);
-    wxPoint* temp = new wxPoint[count];
-    if (! temp) {
+    *count = PySequence_Length(source);
+    if (*count < 0) {
+        goto error0;
+    }
+
+    temp = new wxPoint[*count];
+    if (!temp) {
         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
         return NULL;
     }
-    for (int x=0; x<count; x++) {
-        PyObject* o = PyList_GetItem(source, x);
-        if (PyTuple_Check(o)) {
-            PyObject* o1 = PyTuple_GetItem(o, 0);
-            PyObject* o2 = PyTuple_GetItem(o, 1);
+    for (x=0; x<*count; x++) {
+        // Get an item: try fast way first.
+        if (isFast) {
+            o = PySequence_Fast_GET_ITEM(source, x);
+        }
+        else {
+            o = PySequence_GetItem(source, x);
+            if (o == NULL) {
+                goto error1;
+            }
+        }
 
-            temp[x].x = PyInt_AsLong(o1);
-            temp[x].y = PyInt_AsLong(o2);
+        // Convert o to wxPoint.
+        if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
+            (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
+            o1 = PySequence_Fast_GET_ITEM(o, 0);
+            o2 = PySequence_Fast_GET_ITEM(o, 1);
+            if (!wxPointFromObjects(o1, o2, &temp[x])) {
+                goto error2;
+            }
         }
         else if (PyInstance_Check(o)) {
             wxPoint* pt;
-            if (SWIG_GetPtrObj(o,(void **) &pt,"_wxPoint_p")) {
-                PyErr_SetString(PyExc_TypeError,"Expected _wxPoint_p.");
-                return NULL;
+            if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
+                goto error2;
             }
             temp[x] = *pt;
         }
+        else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
+            o1 = PySequence_GetItem(o, 0);
+            o2 = PySequence_GetItem(o, 1);
+            if (!wxPointFromObjects(o1, o2, &temp[x])) {
+                goto error3;
+            }
+            Py_DECREF(o1);
+            Py_DECREF(o2);
+        }
         else {
-            PyErr_SetString(PyExc_TypeError, "Expected a list of 2-tuples or wxPoints.");
-            return NULL;
+            goto error2;
         }
+        // Clean up.
+        if (!isFast)
+            Py_DECREF(o);
     }
     return temp;
+
+error3:
+    Py_DECREF(o1);
+    Py_DECREF(o2);
+error2:
+    if (!isFast)
+        Py_DECREF(o);
+error1:
+    delete temp;
+error0:
+    PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
+    return NULL;
 }
+// end of patch
+//------------------------------
 
 
 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
@@ -821,11 +1011,24 @@ wxString* wxString_LIST_helper(PyObject* source) {
     }
     for (int x=0; x<count; x++) {
         PyObject* o = PyList_GetItem(source, x);
+#if PYTHON_API_VERSION >= 1009
+        if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
+            PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
+            return NULL;
+        }
+
+        char* buff;
+        int   length;
+        if (PyString_AsStringAndSize(o, &buff, &length) == -1)
+            return NULL;
+        temp[x] = wxString(buff, length);
+#else
         if (! PyString_Check(o)) {
             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
             return NULL;
         }
         temp[x] = PyString_AsString(o);
+#endif
     }
     return temp;
 }
@@ -856,10 +1059,7 @@ wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
             PyObject* o1 = PyTuple_GetItem(o, 0);
             PyObject* o2 = PyTuple_GetItem(o, 1);
             PyObject* o3 = PyTuple_GetItem(o, 2);
-
-            temp[x].m_flags   = PyInt_AsLong(o1);
-            temp[x].m_keyCode = PyInt_AsLong(o2);
-            temp[x].m_command = PyInt_AsLong(o3);
+            temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
         }
         else {
             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
@@ -906,14 +1106,21 @@ bool wxPoint_helper(PyObject* source, wxPoint** obj) {
         *obj = ptr;
         return TRUE;
     }
-    // otherwise a 2-tuple of integers is expected
-    else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
+    // otherwise a length-2 sequence of integers is expected
+    if (PySequence_Check(source) && PySequence_Length(source) == 2) {
         PyObject* o1 = PySequence_GetItem(source, 0);
         PyObject* o2 = PySequence_GetItem(source, 1);
-        **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
+		// This should really check for integers, not numbers -- but that would break code.
+		if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
+			Py_DECREF(o1);
+		    Py_DECREF(o2);
+			goto error;
+		}
+		**obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
+		Py_DECREF(o1);
+		Py_DECREF(o2);
         return TRUE;
     }
-
  error:
     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
     return FALSE;
@@ -988,7 +1195,7 @@ bool wxColour_helper(PyObject* source, wxColour** obj) {
     // otherwise a string is expected
     else if (PyString_Check(source)) {
         wxString spec = PyString_AS_STRING(source);
-        if (spec[0] == '#' && spec.Length() == 7) {  // It's  #RRGGBB
+        if (spec[0U] == '#' && spec.Length() == 7) {  // It's  #RRGGBB
             char* junk;
             int red   = strtol(spec.Mid(1,2), &junk, 16);
             int green = strtol(spec.Mid(3,2), &junk, 16);