+//---------------------------------------------------------------------------
+
+// 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.
+
+void wxPy_ReinitStockObjects()
+{
+ char ptrbuf[128];
+ PyObject* obj;
+ PyObject* ptrobj;
+
+
+
+#define REINITOBJ(name, type) \
+ obj = PyDict_GetItemString(wxPython_dict, #name); \
+ wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
+ SWIG_MakePtr(ptrbuf, (char *) name, "_" #type "_p"); \
+ ptrobj = PyString_FromString(ptrbuf); \
+ PyObject_SetAttrString(obj, "this", ptrobj); \
+ Py_DECREF(ptrobj)
+
+#define REINITOBJ2(name, type) \
+ obj = PyDict_GetItemString(wxPython_dict, #name); \
+ wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
+ SWIG_MakePtr(ptrbuf, (char *) &name, "_" #type "_p"); \
+ ptrobj = PyString_FromString(ptrbuf); \
+ PyObject_SetAttrString(obj, "this", ptrobj); \
+ Py_DECREF(ptrobj)
+
+
+ REINITOBJ(wxNORMAL_FONT, wxFont);
+ REINITOBJ(wxSMALL_FONT, wxFont);
+ REINITOBJ(wxITALIC_FONT, wxFont);
+ REINITOBJ(wxSWISS_FONT, wxFont);
+
+ REINITOBJ(wxRED_PEN, wxPen);
+ REINITOBJ(wxCYAN_PEN, wxPen);
+ REINITOBJ(wxGREEN_PEN, wxPen);
+ REINITOBJ(wxBLACK_PEN, wxPen);
+ REINITOBJ(wxWHITE_PEN, wxPen);
+ REINITOBJ(wxTRANSPARENT_PEN, wxPen);
+ REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
+ REINITOBJ(wxGREY_PEN, wxPen);
+ REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
+ REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
+
+ REINITOBJ(wxBLUE_BRUSH, wxBrush);
+ REINITOBJ(wxGREEN_BRUSH, wxBrush);
+ REINITOBJ(wxWHITE_BRUSH, wxBrush);
+ REINITOBJ(wxBLACK_BRUSH, wxBrush);
+ REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
+ REINITOBJ(wxCYAN_BRUSH, wxBrush);
+ REINITOBJ(wxRED_BRUSH, wxBrush);
+ REINITOBJ(wxGREY_BRUSH, wxBrush);
+ REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
+ REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
+
+ REINITOBJ(wxBLACK, wxColour);
+ REINITOBJ(wxWHITE, wxColour);
+ REINITOBJ(wxRED, wxColour);
+ REINITOBJ(wxBLUE, wxColour);
+ REINITOBJ(wxGREEN, wxColour);
+ REINITOBJ(wxCYAN, wxColour);
+ REINITOBJ(wxLIGHT_GREY, wxColour);
+
+ REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
+ REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
+ REINITOBJ(wxCROSS_CURSOR, wxCursor);
+
+ REINITOBJ2(wxNullBitmap, wxBitmap);
+ REINITOBJ2(wxNullIcon, wxIcon);
+ REINITOBJ2(wxNullCursor, wxCursor);
+ REINITOBJ2(wxNullPen, wxPen);
+ REINITOBJ2(wxNullBrush, wxBrush);
+ REINITOBJ2(wxNullPalette, wxPalette);
+ REINITOBJ2(wxNullFont, wxFont);
+ REINITOBJ2(wxNullColour, wxColour);
+
+ REINITOBJ(wxTheFontList, wxFontList);
+ REINITOBJ(wxThePenList, wxPenList);
+ REINITOBJ(wxTheBrushList, wxBrushList);
+ REINITOBJ(wxTheColourDatabase, wxColourDatabase);
+
+
+ REINITOBJ(wxTheClipboard, wxClipboard);
+ REINITOBJ(wxTheMimeTypesManager, wxMimeTypesManager);
+ REINITOBJ2(wxDefaultValidator, wxValidator);
+ REINITOBJ2(wxNullImage, wxImage);
+ REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
+
+#undef REINITOBJ
+#undef REINITOBJ2
+}
+
+//---------------------------------------------------------------------------
+
+void wxPyClientData_dtor(wxPyClientData* self) {
+ if (! wxPyDoingCleanup) { // Don't do it during cleanup as Python
+ // may have already garbage collected the object...
+ wxPyBeginBlockThreads();
+ Py_DECREF(self->m_obj);
+ wxPyEndBlockThreads();
+ }
+}
+
+void wxPyUserData_dtor(wxPyUserData* self) {
+ if (! wxPyDoingCleanup) {
+ wxPyBeginBlockThreads();
+ Py_DECREF(self->m_obj);
+ wxPyEndBlockThreads();
+ }
+}
+
+
+// This is called when an OOR controled object is being destroyed. Although
+// the C++ object is going away there is no way to force the Python object
+// (and all references to it) to die too. This causes problems (crashes) in
+// wxPython when a python shadow object attempts to call a C++ method using
+// the now bogus pointer... So to try and prevent this we'll do a little black
+// magic and change the class of the python instance to a class that will
+// raise an exception for any attempt to call methods with it. See
+// _wxPyDeadObject in _extras.py for the implementation of this class.
+void wxPyOORClientData_dtor(wxPyOORClientData* self) {
+
+ static PyObject* deadObjectClass = NULL;
+
+ wxPyBeginBlockThreads();
+ if (deadObjectClass == NULL) {
+ deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
+ wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
+ Py_INCREF(deadObjectClass);
+ }
+
+
+ // Only if there is more than one reference to the object
+ if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
+ wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
+
+ // Call __del__, if there is one.
+ PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
+ if (func) {
+ PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
+ Py_XDECREF(rv);
+ Py_DECREF(func);
+ }
+ if (PyErr_Occurred())
+ PyErr_Clear(); // just ignore it for now
+
+ // Clear the instance's dictionary
+ PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
+ PyDict_Clear(inst->in_dict);
+
+ // put the name of the old class into the instance, and then reset the
+ // class to be the dead class.
+ PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
+ inst->in_class = (PyClassObject*)deadObjectClass;
+ Py_INCREF(deadObjectClass);
+ }
+
+ // m_obj is DECREF's in the base class dtor...
+ wxPyEndBlockThreads();
+}
+
+
+//---------------------------------------------------------------------------
+// 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.
+// (See __wxSetDictionary)
+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 wxString& className) {
+
+ PyObject* item;
+ wxString name(className);
+ char buff[64]; // should always be big enough...
+
+ if (!className)
+ return NULL;
+
+ // Try the name as-is first
+ sprintf(buff, "%sPtr", (const char*)name.mbc_str());
+ PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
+
+ // if not found see if there is a mapped name for it
+ if ( ! classobj) {
+ if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
+ name = wxString(PyString_AsString(item), *wxConvCurrent);
+ sprintf(buff, "%sPtr", (const char*)name.mbc_str());
+ classobj = PyDict_GetItemString(wxPython_dict, buff);
+ }
+ }
+
+ return classobj; // returns NULL if not found
+}
+
+
+PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
+ PyObject* target = NULL;
+ bool isEvtHandler = FALSE;
+
+ if (source) {
+ // If it's derived from wxEvtHandler then there may
+ // already be a pointer to a Python object that we can use
+ // in the OOR data.
+ if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
+ isEvtHandler = TRUE;
+ wxEvtHandler* eh = (wxEvtHandler*)source;
+ wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
+ if (data) {
+ target = data->m_obj;
+ Py_INCREF(target);
+ }
+ }
+
+ if (! target) {
+ // Otherwise make it the old fashioned way by making a
+ // new shadow object and putting this pointer in it.
+ wxClassInfo* info = source->GetClassInfo();
+ wxString name = 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);
+ if (target && isEvtHandler)
+ ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
+ } else {
+ wxString msg(wxT("wxPython class not found for "));
+ msg += source->GetClassInfo()->GetClassName();
+ PyErr_SetString(PyExc_NameError, msg.mbc_str());
+ target = NULL;
+ }
+ }
+ } else { // source was NULL so return None.
+ Py_INCREF(Py_None); target = Py_None;
+ }
+ return target;
+}
+
+
+PyObject* wxPyMake_wxSizer(wxSizer* source) {
+ PyObject* target = NULL;
+
+ if (source && wxIsKindOf(source, wxSizer)) {
+ // If it's derived from wxSizer then there may
+ // already be a pointer to a Python object that we can use
+ // in the OOR data.
+ wxSizer* sz = (wxSizer*)source;
+ wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
+ if (data) {
+ target = data->m_obj;
+ Py_INCREF(target);
+ }
+ }
+ if (! target) {
+ target = wxPyMake_wxObject(source, FALSE);
+ if (target != Py_None)
+ ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
+ }
+ return target;
+}
+
+
+
projects / wxWidgets.git / blobdiff