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Copy pathUEPyUScriptStruct.cpp
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222 lines (186 loc) · 7.29 KB
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#include "UnrealEnginePythonPrivatePCH.h"
static PyObject *py_ue_uscriptstruct_get_field(ue_PyUScriptStruct *self, PyObject * args) {
char *name;
if (!PyArg_ParseTuple(args, "s:get_field", &name)) {
return NULL;
}
UProperty *u_property = self->u_struct->FindPropertyByName(FName(UTF8_TO_TCHAR(name)));
if (!u_property)
return PyErr_Format(PyExc_Exception, "unable to find property %s", name);
return ue_py_convert_property(u_property, self->data);
}
static PyObject *py_ue_uscriptstruct_set_field(ue_PyUScriptStruct *self, PyObject * args) {
char *name;
PyObject *value;
if (!PyArg_ParseTuple(args, "sO:set_field", &name, &value)) {
return NULL;
}
UProperty *u_property = self->u_struct->FindPropertyByName(FName(UTF8_TO_TCHAR(name)));
if (!u_property)
return PyErr_Format(PyExc_Exception, "unable to find property %s", name);
if (!ue_py_convert_pyobject(value, u_property, self->data)) {
return PyErr_Format(PyExc_Exception, "unable to set property %s", name);
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_uscriptstruct_fields(ue_PyUScriptStruct *self, PyObject * args) {
PyObject *ret = PyList_New(0);
for (TFieldIterator<UProperty> PropIt(self->u_struct); PropIt; ++PropIt)
{
UProperty* property = *PropIt;
PyObject *property_name = PyUnicode_FromString(TCHAR_TO_UTF8(*property->GetName()));
PyList_Append(ret, property_name);
Py_DECREF(property_name);
}
return ret;
}
static PyObject *py_ue_uscriptstruct_get_struct(ue_PyUScriptStruct *self, PyObject * args) {
ue_PyUObject *ret = ue_get_python_wrapper(self->u_struct);
if (!ret)
return PyErr_Format(PyExc_Exception, "PyUObject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
static PyMethodDef ue_PyUScriptStruct_methods[] = {
{ "get_field", (PyCFunction)py_ue_uscriptstruct_get_field, METH_VARARGS, "" },
{ "set_field", (PyCFunction)py_ue_uscriptstruct_set_field, METH_VARARGS, "" },
{ "fields", (PyCFunction)py_ue_uscriptstruct_fields, METH_VARARGS, "" },
{ "get_struct", (PyCFunction)py_ue_uscriptstruct_get_struct, METH_VARARGS, "" },
{ NULL } /* Sentinel */
};
static PyObject *ue_PyUScriptStruct_str(ue_PyUScriptStruct *self)
{
return PyUnicode_FromFormat("<unreal_engine.UScriptStruct {'struct': '%s', 'size': %d}>",
TCHAR_TO_UTF8(*self->u_struct->GetName()), self->u_struct->GetStructureSize());
}
static UProperty *get_field_from_name(UScriptStruct *u_struct, char *name) {
FString attr = UTF8_TO_TCHAR(name);
UProperty *u_property = u_struct->FindPropertyByName(FName(*attr));
if (u_property)
return u_property;
// if the property is not found, attempt to search for name_XXXX
attr += FString("_");
for (TFieldIterator<UProperty> prop(u_struct); prop; ++prop)
{
UProperty *property = *prop;
if (property->GetName().StartsWith(attr)) {
return property;
}
}
return nullptr;
}
static PyObject *ue_PyUScriptStruct_getattro(ue_PyUScriptStruct *self, PyObject *attr_name) {
PyObject *ret = PyObject_GenericGetAttr((PyObject *)self, attr_name);
if (!ret) {
if (PyUnicodeOrString_Check(attr_name)) {
char *attr = PyUnicode_AsUTF8(attr_name);
// first check for property
UProperty *u_property = get_field_from_name(self->u_struct, attr);
if (u_property) {
// swallow previous exception
PyErr_Clear();
return ue_py_convert_property(u_property, self->data);
}
}
}
return ret;
}
static int ue_PyUScriptStruct_setattro(ue_PyUScriptStruct *self, PyObject *attr_name, PyObject *value) {
// first of all check for UProperty
if (PyUnicodeOrString_Check(attr_name)) {
char *attr = PyUnicode_AsUTF8(attr_name);
// first check for property
UProperty *u_property = get_field_from_name(self->u_struct, attr);
if (u_property) {
if (ue_py_convert_pyobject(value, u_property, self->data)) {
return 0;
}
PyErr_SetString(PyExc_ValueError, "invalid value for UProperty");
return -1;
}
}
return PyObject_GenericSetAttr((PyObject *)self, attr_name, value);
}
// destructor
static void ue_PyUScriptStruct_dealloc(ue_PyUScriptStruct *self) {
#if defined(UEPY_MEMORY_DEBUG)
UE_LOG(LogPython, Warning, TEXT("Destroying ue_PyUScriptStruct %p with size %d"), self, self->u_struct->GetStructureSize());
#endif
FMemory::Free(self->data);
Py_TYPE(self)->tp_free((PyObject *)self);
}
static PyTypeObject ue_PyUScriptStructType = {
PyVarObject_HEAD_INIT(NULL, 0)
"unreal_engine.UScriptStruct", /* tp_name */
sizeof(ue_PyUScriptStruct), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)ue_PyUScriptStruct_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
(reprfunc)ue_PyUScriptStruct_str, /* tp_str */
(getattrofunc)ue_PyUScriptStruct_getattro, /* tp_getattro */
(setattrofunc)ue_PyUScriptStruct_setattro, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
"Unreal Engine Editor UScriptStruct", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
ue_PyUScriptStruct_methods, /* tp_methods */
0,
0,
};
static int ue_py_uscriptstruct_init(ue_PyUScriptStruct *self, PyObject *args, PyObject *kwargs) {
PyObject *py_struct;
if (!PyArg_ParseTuple(args, "O", &py_struct))
return -1;
if (!ue_is_pyuobject(py_struct)) {
PyErr_SetString(PyExc_Exception, "argument is not a UScriptStruct");
return -1;
}
ue_PyUObject *py_u_obj = (ue_PyUObject *)py_struct;
if (!py_u_obj->ue_object->IsA<UScriptStruct>()) {
PyErr_SetString(PyExc_Exception, "argument is not a UScriptStruct");
return -1;
}
self->u_struct = (UScriptStruct *)py_u_obj->ue_object;
self->data = (uint8*)FMemory::Malloc(self->u_struct->GetStructureSize());
self->u_struct->InitializeStruct(self->data);
#if WITH_EDITOR
self->u_struct->InitializeDefaultValue(self->data);
#endif
return 0;
}
void ue_python_init_uscriptstruct(PyObject *ue_module) {
ue_PyUScriptStructType.tp_new = PyType_GenericNew;
ue_PyUScriptStructType.tp_init = (initproc)ue_py_uscriptstruct_init;
if (PyType_Ready(&ue_PyUScriptStructType) < 0)
return;
Py_INCREF(&ue_PyUScriptStructType);
PyModule_AddObject(ue_module, "UScriptStruct", (PyObject *)&ue_PyUScriptStructType);
}
PyObject *py_ue_new_uscriptstruct(UScriptStruct *u_struct, uint8 *data) {
ue_PyUScriptStruct *ret = (ue_PyUScriptStruct *)PyObject_New(ue_PyUScriptStruct, &ue_PyUScriptStructType);
ret->u_struct = u_struct;
uint8 *struct_data = (uint8*)FMemory::Malloc(u_struct->GetStructureSize());
FMemory::Memcpy(struct_data, data, u_struct->GetStructureSize());
ret->data = struct_data;
return (PyObject *)ret;
}
ue_PyUScriptStruct *py_ue_is_uscriptstruct(PyObject *obj) {
if (!PyObject_IsInstance(obj, (PyObject *)&ue_PyUScriptStructType))
return nullptr;
return (ue_PyUScriptStruct *)obj;
}