// This function is used for all events destined for Python event handlers.
void wxPyCallback::EventThunker(wxEvent& event) {
wxPyCallback* cb = (wxPyCallback*)event.m_callbackUserData;
PyObject* func = cb->m_func;
PyObject* result;
PyObject* arg;
PyObject* tuple;
bool checkSkip = false;
wxPyThreadBlocker blocker;
wxString className = event.GetClassInfo()->GetClassName();
arg = wxPyConstructObject((void*)&event, className);
if (!arg) {
PyErr_Print();
} else {
// 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 {
PyErr_Print();
}
Py_DECREF(tuple);
}
}
static void callPythonDelegate(PyObject* delegate, wxWindow* window)
{
// create a Python compatible wxWindow from the one we have
PyObject* pywin = wxPyConstructObject((void*)window, wxT("wxWindow"), false);
if (!pywin) {
fprintf(stderr, "could not create wxWindow PyObject*\n");
return;
}
// pass the wxWindow associated with this event to the Python function
PyObject* res = PyObject_CallFunctionObjArgs(delegate, win, 0);
Py_XDECREF(res);
Py_DECREF(pywin);
if (PyErr_Occurred()) {
// print any exceptions that occurred
PyErr_Print();
return false;
} else {
// if the function succeeded, return true--meaning we handled this event.
return true;
}
}
