/**
* \return success
*/
bool BPY_execute_string_as_number(bContext *C, const char *expr, double *value, const bool verbose)
{
PyGILState_STATE gilstate;
bool ok = true;
if (!value || !expr) return -1;
if (expr[0] == '\0') {
*value = 0.0;
return ok;
}
bpy_context_set(C, &gilstate);
ok = PyC_RunString_AsNumber(expr, value, "<blender button>");
if (ok == false) {
if (verbose) {
BPy_errors_to_report_ex(CTX_wm_reports(C), false, false);
}
else {
PyErr_Clear();
}
}
bpy_context_clear(C, &gilstate);
return ok;
}
/* callbacks */
static void bpy_prop_update_cb(struct bContext *C, struct PointerRNA *ptr, struct PropertyRNA *prop)
{
PyGILState_STATE gilstate;
PyObject **py_data= (PyObject **)RNA_property_py_data_get(prop);
PyObject *py_func;
PyObject *args;
PyObject *self;
PyObject *ret;
const int is_write_ok= pyrna_write_check();
BLI_assert(py_data != NULL);
if(!is_write_ok) {
pyrna_write_set(TRUE);
}
bpy_context_set(C, &gilstate);
py_func= py_data[BPY_DATA_CB_SLOT_UPDATE];
args= PyTuple_New(2);
self= pyrna_struct_as_instance(ptr);
PyTuple_SET_ITEM(args, 0, self);
PyTuple_SET_ITEM(args, 1, (PyObject *)bpy_context_module);
Py_INCREF(bpy_context_module);
ret= PyObject_CallObject(py_func, args);
Py_DECREF(args);
if(ret == NULL) {
printf_func_error(py_func);
}
else {
if(ret != Py_None) {
PyErr_SetString(PyExc_ValueError, "the return value must be None");
printf_func_error(py_func);
}
Py_DECREF(ret);
}
bpy_context_clear(C, &gilstate);
if(!is_write_ok) {
pyrna_write_set(FALSE);
}
}
void BPY_modules_load_user(bContext *C)
{
PyGILState_STATE gilstate;
Main *bmain = CTX_data_main(C);
Text *text;
/* can happen on file load */
if (bmain == NULL)
return;
/* update pointers since this can run from a nested script
* on file load */
if (py_call_level) {
BPY_context_update(C);
}
bpy_context_set(C, &gilstate);
for (text = bmain->text.first; text; text = text->id.next) {
if (text->flags & TXT_ISSCRIPT && BLI_testextensie(text->id.name + 2, ".py")) {
if (!(G.f & G_SCRIPT_AUTOEXEC)) {
if (!(G.f & G_SCRIPT_AUTOEXEC_FAIL_QUIET)) {
G.f |= G_SCRIPT_AUTOEXEC_FAIL;
BLI_snprintf(G.autoexec_fail, sizeof(G.autoexec_fail), "Text '%s'", text->id.name + 2);
printf("scripts disabled for \"%s\", skipping '%s'\n", bmain->name, text->id.name + 2);
}
}
else {
PyObject *module = bpy_text_import(text);
if (module == NULL) {
PyErr_Print();
PyErr_Clear();
}
else {
Py_DECREF(module);
}
/* check if the script loaded a new file */
if (bmain != CTX_data_main(C)) {
break;
}
}
}
}
bpy_context_clear(C, &gilstate);
}
int BPY_string_exec(bContext *C, const char *expr)
{
PyGILState_STATE gilstate;
PyObject *main_mod = NULL;
PyObject *py_dict, *retval;
int error_ret = 0;
Main *bmain_back; /* XXX, quick fix for release (Copy Settings crash), needs further investigation */
if (!expr) return -1;
if (expr[0] == '\0') {
return error_ret;
}
bpy_context_set(C, &gilstate);
PyC_MainModule_Backup(&main_mod);
py_dict = PyC_DefaultNameSpace("<blender string>");
bmain_back = bpy_import_main_get();
bpy_import_main_set(CTX_data_main(C));
retval = PyRun_String(expr, Py_eval_input, py_dict, py_dict);
bpy_import_main_set(bmain_back);
if (retval == NULL) {
error_ret = -1;
BPy_errors_to_report(CTX_wm_reports(C));
}
else {
Py_DECREF(retval);
}
PyC_MainModule_Restore(main_mod);
bpy_context_clear(C, &gilstate);
return error_ret;
}
static void cb_region_draw(const bContext *C, ARegion *UNUSED(ar), void *customdata)
{
PyObject *cb_func, *cb_args, *result;
PyGILState_STATE gilstate;
bpy_context_set((bContext *)C, &gilstate);
cb_func = PyTuple_GET_ITEM((PyObject *)customdata, 1);
cb_args = PyTuple_GET_ITEM((PyObject *)customdata, 2);
result = PyObject_CallObject(cb_func, cb_args);
if (result) {
Py_DECREF(result);
}
else {
PyErr_Print();
PyErr_Clear();
}
bpy_context_clear((bContext *)C, &gilstate);
}
/* return -1 on error, else 0 */
int BPY_button_exec(bContext *C, const char *expr, double *value, const short verbose)
{
PyGILState_STATE gilstate;
PyObject *py_dict, *mod, *retval;
int error_ret = 0;
PyObject *main_mod = NULL;
if (!value || !expr) return -1;
if (expr[0] == '\0') {
*value = 0.0;
return error_ret;
}
bpy_context_set(C, &gilstate);
PyC_MainModule_Backup(&main_mod);
py_dict = PyC_DefaultNameSpace("<blender button>");
mod = PyImport_ImportModule("math");
if (mod) {
PyDict_Merge(py_dict, PyModule_GetDict(mod), 0); /* 0 - don't overwrite existing values */
Py_DECREF(mod);
}
else { /* highly unlikely but possibly */
PyErr_Print();
PyErr_Clear();
}
retval = PyRun_String(expr, Py_eval_input, py_dict, py_dict);
if (retval == NULL) {
error_ret = -1;
}
else {
double val;
if (PyTuple_Check(retval)) {
/* Users my have typed in 10km, 2m
* add up all values */
int i;
val = 0.0;
for (i = 0; i < PyTuple_GET_SIZE(retval); i++) {
val += PyFloat_AsDouble(PyTuple_GET_ITEM(retval, i));
}
}
else {
val = PyFloat_AsDouble(retval);
}
Py_DECREF(retval);
if (val == -1 && PyErr_Occurred()) {
error_ret = -1;
}
else if (!finite(val)) {
*value = 0.0;
}
else {
*value = val;
}
}
if (error_ret) {
if (verbose) {
BPy_errors_to_report(CTX_wm_reports(C));
}
else {
PyErr_Clear();
}
}
PyC_MainModule_Backup(&main_mod);
bpy_context_clear(C, &gilstate);
return error_ret;
}
static int python_script_exec(bContext *C, const char *fn, struct Text *text,
struct ReportList *reports, const short do_jump)
{
PyObject *main_mod = NULL;
PyObject *py_dict = NULL, *py_result = NULL;
PyGILState_STATE gilstate;
BLI_assert(fn || text);
if (fn == NULL && text == NULL) {
return 0;
}
bpy_context_set(C, &gilstate);
PyC_MainModule_Backup(&main_mod);
if (text) {
char fn_dummy[FILE_MAXDIR];
bpy_text_filename_get(fn_dummy, sizeof(fn_dummy), text);
if (text->compiled == NULL) { /* if it wasn't already compiled, do it now */
char *buf = txt_to_buf(text);
text->compiled = Py_CompileString(buf, fn_dummy, Py_file_input);
MEM_freeN(buf);
if (PyErr_Occurred()) {
if (do_jump) {
python_script_error_jump_text(text);
}
BPY_text_free_code(text);
}
}
if (text->compiled) {
py_dict = PyC_DefaultNameSpace(fn_dummy);
py_result = PyEval_EvalCode(text->compiled, py_dict, py_dict);
}
}
else {
FILE *fp = BLI_fopen(fn, "r");
if (fp) {
py_dict = PyC_DefaultNameSpace(fn);
#ifdef _WIN32
/* Previously we used PyRun_File to run directly the code on a FILE
* object, but as written in the Python/C API Ref Manual, chapter 2,
* 'FILE structs for different C libraries can be different and
* incompatible'.
* So now we load the script file data to a buffer */
{
char *pystring;
fclose(fp);
pystring = MEM_mallocN(strlen(fn) + 32, "pystring");
pystring[0] = '\0';
sprintf(pystring, "exec(open(r'%s').read())", fn);
py_result = PyRun_String(pystring, Py_file_input, py_dict, py_dict);
MEM_freeN(pystring);
}
#else
py_result = PyRun_File(fp, fn, Py_file_input, py_dict, py_dict);
fclose(fp);
#endif
}
else {
PyErr_Format(PyExc_IOError,
"Python file \"%s\" could not be opened: %s",
fn, strerror(errno));
py_result = NULL;
}
}
if (!py_result) {
if (text) {
if (do_jump) {
python_script_error_jump_text(text);
}
}
BPy_errors_to_report(reports);
}
else {
Py_DECREF(py_result);
}
if (py_dict) {
#ifdef PYMODULE_CLEAR_WORKAROUND
PyModuleObject *mmod = (PyModuleObject *)PyDict_GetItemString(PyThreadState_GET()->interp->modules, "__main__");
PyObject *dict_back = mmod->md_dict;
/* freeing the module will clear the namespace,
* gives problems running classes defined in this namespace being used later. */
mmod->md_dict = NULL;
Py_DECREF(dict_back);
#endif
#undef PYMODULE_CLEAR_WORKAROUND
}
PyC_MainModule_Restore(main_mod);
bpy_context_clear(C, &gilstate);
return (py_result != NULL);
}
static EnumPropertyItem *bpy_props_enum_itemf(struct bContext *C, PointerRNA *ptr, PropertyRNA *prop, int *free)
{
PyGILState_STATE gilstate;
PyObject *py_func= RNA_property_enum_py_data_get(prop);
PyObject *self= NULL;
PyObject *args;
PyObject *items; /* returned from the function call */
EnumPropertyItem *eitems= NULL;
int err= 0;
bpy_context_set(C, &gilstate);
args= PyTuple_New(2);
self= pyrna_struct_as_instance(ptr);
PyTuple_SET_ITEM(args, 0, self);
/* now get the context */
PyTuple_SET_ITEM(args, 1, (PyObject *)bpy_context_module);
Py_INCREF(bpy_context_module);
items= PyObject_CallObject(py_func, args);
Py_DECREF(args);
if(items==NULL) {
err= -1;
}
else {
PyObject *items_fast;
int defvalue_dummy=0;
if(!(items_fast= PySequence_Fast(items, "EnumProperty(...): return value from the callback was not a sequence"))) {
err= -1;
}
else {
eitems= enum_items_from_py(items_fast, NULL, &defvalue_dummy, (RNA_property_flag(prop) & PROP_ENUM_FLAG)!=0);
Py_DECREF(items_fast);
if(!eitems) {
err= -1;
}
}
Py_DECREF(items);
}
if(err != -1) { /* worked */
*free= 1;
}
else {
printf_func_error(py_func);
eitems= DummyRNA_NULL_items;
}
bpy_context_clear(C, &gilstate);
return eitems;
}
static bool python_script_exec(
bContext *C, const char *fn, struct Text *text,
struct ReportList *reports, const bool do_jump)
{
Main *bmain_old = CTX_data_main(C);
PyObject *main_mod = NULL;
PyObject *py_dict = NULL, *py_result = NULL;
PyGILState_STATE gilstate;
BLI_assert(fn || text);
if (fn == NULL && text == NULL) {
return 0;
}
bpy_context_set(C, &gilstate);
PyC_MainModule_Backup(&main_mod);
if (text) {
char fn_dummy[FILE_MAXDIR];
bpy_text_filename_get(fn_dummy, sizeof(fn_dummy), text);
if (text->compiled == NULL) { /* if it wasn't already compiled, do it now */
char *buf;
PyObject *fn_dummy_py;
fn_dummy_py = PyC_UnicodeFromByte(fn_dummy);
buf = txt_to_buf(text);
text->compiled = Py_CompileStringObject(buf, fn_dummy_py, Py_file_input, NULL, -1);
MEM_freeN(buf);
Py_DECREF(fn_dummy_py);
if (PyErr_Occurred()) {
if (do_jump) {
python_script_error_jump_text(text);
}
BPY_text_free_code(text);
}
}
if (text->compiled) {
py_dict = PyC_DefaultNameSpace(fn_dummy);
py_result = PyEval_EvalCode(text->compiled, py_dict, py_dict);
}
}
else {
FILE *fp = BLI_fopen(fn, "r");
if (fp) {
py_dict = PyC_DefaultNameSpace(fn);
#ifdef _WIN32
/* Previously we used PyRun_File to run directly the code on a FILE
* object, but as written in the Python/C API Ref Manual, chapter 2,
* 'FILE structs for different C libraries can be different and
* incompatible'.
* So now we load the script file data to a buffer */
{
const char *pystring =
"ns = globals().copy()\n"
"with open(__file__, 'rb') as f: exec(compile(f.read(), __file__, 'exec'), ns)";
fclose(fp);
py_result = PyRun_String(pystring, Py_file_input, py_dict, py_dict);
}
#else
py_result = PyRun_File(fp, fn, Py_file_input, py_dict, py_dict);
fclose(fp);
#endif
}
else {
PyErr_Format(PyExc_IOError,
"Python file \"%s\" could not be opened: %s",
fn, strerror(errno));
py_result = NULL;
}
}
if (!py_result) {
if (text) {
if (do_jump) {
/* ensure text is valid before use, the script may have freed its self */
Main *bmain_new = CTX_data_main(C);
if ((bmain_old == bmain_new) && (BLI_findindex(&bmain_new->text, text) != -1)) {
python_script_error_jump_text(text);
}
}
}
BPy_errors_to_report(reports);
}
else {
Py_DECREF(py_result);
}
if (py_dict) {
#ifdef PYMODULE_CLEAR_WORKAROUND
PyModuleObject *mmod = (PyModuleObject *)PyDict_GetItemString(PyThreadState_GET()->interp->modules, "__main__");
PyObject *dict_back = mmod->md_dict;
/* freeing the module will clear the namespace,
* gives problems running classes defined in this namespace being used later. */
mmod->md_dict = NULL;
Py_DECREF(dict_back);
#endif
#undef PYMODULE_CLEAR_WORKAROUND
}
PyC_MainModule_Restore(main_mod);
bpy_context_clear(C, &gilstate);
return (py_result != NULL);
}
