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c77e556b23e8df10a829bdeebe86d718bd5e5ca6
blender-archive/source/blender/python/intern/bpy_rna.c
Campbell Barton c77e556b23 - missing a decref for new pytypes 
- remove needless strlen
2009-08-11 19:20:31 +00:00

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/**
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Contributor(s): Campbell Barton
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "bpy_rna.h"
#include "bpy_util.h"
//#include "blendef.h"
#include "BLI_dynstr.h"
#include "BLI_listbase.h"
#include "BLI_string.h"
#include "float.h" /* FLT_MIN/MAX */
#include "RNA_access.h"
#include "RNA_define.h" /* for defining our own rna */
#include "MEM_guardedalloc.h"
#include "BKE_utildefines.h"
#include "BKE_context.h"
#include "BKE_global.h" /* evil G.* */
#include "BKE_report.h"
/* only for keyframing */
#include "DNA_scene_types.h"
#include "ED_keyframing.h"
#define USE_MATHUTILS
#ifdef USE_MATHUTILS
#include "../generic/Mathutils.h" /* so we can have mathutils callbacks */
/* bpyrna vector/euler/quat callbacks */
static int mathutils_rna_array_cb_index= -1; /* index for our callbacks */
static int mathutils_rna_generic_check(BPy_PropertyRNA *self)
{
return self->prop?1:0;
}
static int mathutils_rna_vector_get(BPy_PropertyRNA *self, int subtype, float *vec_from)
{
if(self->prop==NULL)
return 0;
RNA_property_float_get_array(&self->ptr, self->prop, vec_from);
return 1;
}
static int mathutils_rna_vector_set(BPy_PropertyRNA *self, int subtype, float *vec_to)
{
if(self->prop==NULL)
return 0;
RNA_property_float_set_array(&self->ptr, self->prop, vec_to);
return 1;
}
static int mathutils_rna_vector_get_index(BPy_PropertyRNA *self, int subtype, float *vec_from, int index)
{
if(self->prop==NULL)
return 0;
vec_from[index]= RNA_property_float_get_index(&self->ptr, self->prop, index);
return 1;
}
static int mathutils_rna_vector_set_index(BPy_PropertyRNA *self, int subtype, float *vec_to, int index)
{
if(self->prop==NULL)
return 0;
RNA_property_float_set_index(&self->ptr, self->prop, index, vec_to[index]);
return 1;
}
Mathutils_Callback mathutils_rna_array_cb = {
(BaseMathCheckFunc) mathutils_rna_generic_check,
(BaseMathGetFunc) mathutils_rna_vector_get,
(BaseMathSetFunc) mathutils_rna_vector_set,
(BaseMathGetIndexFunc) mathutils_rna_vector_get_index,
(BaseMathSetIndexFunc) mathutils_rna_vector_set_index
};
/* bpyrna matrix callbacks */
static int mathutils_rna_matrix_cb_index= -1; /* index for our callbacks */
static int mathutils_rna_matrix_get(BPy_PropertyRNA *self, int subtype, float *mat_from)
{
if(self->prop==NULL)
return 0;
RNA_property_float_get_array(&self->ptr, self->prop, mat_from);
return 1;
}
static int mathutils_rna_matrix_set(BPy_PropertyRNA *self, int subtype, float *mat_to)
{
if(self->prop==NULL)
return 0;
RNA_property_float_set_array(&self->ptr, self->prop, mat_to);
return 1;
}
Mathutils_Callback mathutils_rna_matrix_cb = {
(BaseMathCheckFunc) mathutils_rna_generic_check,
(BaseMathGetFunc) mathutils_rna_matrix_get,
(BaseMathSetFunc) mathutils_rna_matrix_set,
(BaseMathGetIndexFunc) NULL,
(BaseMathSetIndexFunc) NULL
};
#endif
static int pyrna_struct_compare( BPy_StructRNA * a, BPy_StructRNA * b )
{
return (a->ptr.data==b->ptr.data) ? 0 : -1;
}
static int pyrna_prop_compare( BPy_PropertyRNA * a, BPy_PropertyRNA * b )
{
return (a->prop==b->prop && a->ptr.data==b->ptr.data ) ? 0 : -1;
}
/* For some reason python3 needs these :/ */
static PyObject *pyrna_struct_richcmp(BPy_StructRNA * a, BPy_StructRNA * b, int op)
{
int cmp_result= -1; /* assume false */
if (BPy_StructRNA_Check(a) && BPy_StructRNA_Check(b)) {
cmp_result= pyrna_struct_compare(a, b);
}
return Py_CmpToRich(op, cmp_result);
}
static PyObject *pyrna_prop_richcmp(BPy_PropertyRNA * a, BPy_PropertyRNA * b, int op)
{
int cmp_result= -1; /* assume false */
if (BPy_PropertyRNA_Check(a) && BPy_PropertyRNA_Check(b)) {
cmp_result= pyrna_prop_compare(a, b);
}
return Py_CmpToRich(op, cmp_result);
}
/*----------------------repr--------------------------------------------*/
static PyObject *pyrna_struct_repr( BPy_StructRNA * self )
{
PyObject *pyob;
char *name;
/* print name if available */
name= RNA_struct_name_get_alloc(&self->ptr, NULL, FALSE);
if(name) {
pyob= PyUnicode_FromFormat( "[BPy_StructRNA \"%.200s\" -> \"%.200s\"]", RNA_struct_identifier(self->ptr.type), name);
MEM_freeN(name);
return pyob;
}
return PyUnicode_FromFormat( "[BPy_StructRNA \"%.200s\"]", RNA_struct_identifier(self->ptr.type));
}
static PyObject *pyrna_prop_repr( BPy_PropertyRNA * self )
{
PyObject *pyob;
PointerRNA ptr;
char *name;
/* if a pointer, try to print name of pointer target too */
if(RNA_property_type(self->prop) == PROP_POINTER) {
ptr= RNA_property_pointer_get(&self->ptr, self->prop);
name= RNA_struct_name_get_alloc(&ptr, NULL, FALSE);
if(name) {
pyob= PyUnicode_FromFormat( "[BPy_PropertyRNA \"%.200s\" -> \"%.200s\" -> \"%.200s\" ]", RNA_struct_identifier(self->ptr.type), RNA_property_identifier(self->prop), name);
MEM_freeN(name);
return pyob;
}
}
return PyUnicode_FromFormat( "[BPy_PropertyRNA \"%.200s\" -> \"%.200s\"]", RNA_struct_identifier(self->ptr.type), RNA_property_identifier(self->prop));
}
static long pyrna_struct_hash( BPy_StructRNA * self )
{
return (long)self->ptr.data;
}
/* use our own dealloc so we can free a property if we use one */
static void pyrna_struct_dealloc( BPy_StructRNA * self )
{
if (self->freeptr && self->ptr.data) {
IDP_FreeProperty(self->ptr.data);
MEM_freeN(self->ptr.data);
self->ptr.data= NULL;
}
/* Note, for subclassed PyObjects we cant just call PyObject_DEL() directly or it will crash */
Py_TYPE(self)->tp_free(self);
return;
}
static char *pyrna_enum_as_string(PointerRNA *ptr, PropertyRNA *prop)
{
EnumPropertyItem *item;
char *result;
int free= FALSE;
RNA_property_enum_items(BPy_GetContext(), ptr, prop, &item, NULL, &free);
if(item) {
result= (char*)BPy_enum_as_string(item);
}
else {
result= "";
}
if(free)
MEM_freeN(item);
return result;
}
PyObject * pyrna_prop_to_py(PointerRNA *ptr, PropertyRNA *prop)
{
PyObject *ret;
int type = RNA_property_type(prop);
int len = RNA_property_array_length(prop);
if (len > 0) {
/* resolve the array from a new pytype */
PyObject *ret = pyrna_prop_CreatePyObject(ptr, prop);
#ifdef USE_MATHUTILS
/* return a mathutils vector where possible */
if(RNA_property_type(prop)==PROP_FLOAT) {
switch(RNA_property_subtype(prop)) {
case PROP_TRANSLATION:
case PROP_DIRECTION:
case PROP_VELOCITY:
case PROP_ACCELERATION:
case PROP_XYZ:
if(len>=2 && len <= 4) {
PyObject *vec_cb= newVectorObject_cb(ret, len, mathutils_rna_array_cb_index, FALSE);
Py_DECREF(ret); /* the vector owns now */
ret= vec_cb; /* return the vector instead */
}
break;
case PROP_MATRIX:
if(len==16) {
PyObject *mat_cb= newMatrixObject_cb(ret, 4,4, mathutils_rna_matrix_cb_index, FALSE);
Py_DECREF(ret); /* the matrix owns now */
ret= mat_cb; /* return the matrix instead */
}
else if (len==9) {
PyObject *mat_cb= newMatrixObject_cb(ret, 3,3, mathutils_rna_matrix_cb_index, FALSE);
Py_DECREF(ret); /* the matrix owns now */
ret= mat_cb; /* return the matrix instead */
}
break;
case PROP_EULER:
case PROP_QUATERNION:
if(len==3) { /* euler */
PyObject *eul_cb= newEulerObject_cb(ret, mathutils_rna_array_cb_index, FALSE);
Py_DECREF(ret); /* the matrix owns now */
ret= eul_cb; /* return the matrix instead */
}
else if (len==4) {
PyObject *quat_cb= newQuaternionObject_cb(ret, mathutils_rna_array_cb_index, FALSE);
Py_DECREF(ret); /* the matrix owns now */
ret= quat_cb; /* return the matrix instead */
}
break;
default:
break;
}
}
#endif
return ret;
}
/* see if we can coorce into a python type - PropertyType */
switch (type) {
case PROP_BOOLEAN:
ret = PyBool_FromLong( RNA_property_boolean_get(ptr, prop) );
break;
case PROP_INT:
ret = PyLong_FromSsize_t( (Py_ssize_t)RNA_property_int_get(ptr, prop) );
break;
case PROP_FLOAT:
ret = PyFloat_FromDouble( RNA_property_float_get(ptr, prop) );
break;
case PROP_STRING:
{
char *buf;
buf = RNA_property_string_get_alloc(ptr, prop, NULL, -1);
ret = PyUnicode_FromString( buf );
MEM_freeN(buf);
break;
}
case PROP_ENUM:
{
const char *identifier;
int val = RNA_property_enum_get(ptr, prop);
if (RNA_property_enum_identifier(BPy_GetContext(), ptr, prop, val, &identifier)) {
ret = PyUnicode_FromString( identifier );
} else {
EnumPropertyItem *item;
int free= FALSE;
/* don't throw error here, can't trust blender 100% to give the
* right values, python code should not generate error for that */
RNA_property_enum_items(BPy_GetContext(), ptr, prop, &item, NULL, &free);
if(item && item->identifier) {
ret = PyUnicode_FromString( item->identifier );
}
else {
/* prefer not fail silently incase of api errors, maybe disable it later */
char error_str[128];
sprintf(error_str, "RNA Warning: Current value \"%d\" matches no enum", val);
PyErr_Warn(PyExc_RuntimeWarning, error_str);
ret = PyUnicode_FromString( "" );
}
if(free)
MEM_freeN(item);
/*PyErr_Format(PyExc_AttributeError, "RNA Error: Current value \"%d\" matches no enum", val);
ret = NULL;*/
}
break;
}
case PROP_POINTER:
{
PointerRNA newptr;
newptr= RNA_property_pointer_get(ptr, prop);
if (newptr.data) {
ret = pyrna_struct_CreatePyObject(&newptr);
} else {
ret = Py_None;
Py_INCREF(ret);
}
break;
}
case PROP_COLLECTION:
ret = pyrna_prop_CreatePyObject(ptr, prop);
break;
default:
PyErr_Format(PyExc_TypeError, "RNA Error: unknown type \"%d\" (pyrna_prop_to_py)", type);
ret = NULL;
break;
}
return ret;
}
/* This function is used by operators and converting dicts into collections.
* Its takes keyword args and fills them with property values */
int pyrna_pydict_to_props(PointerRNA *ptr, PyObject *kw, int all_args, const char *error_prefix)
{
int error_val = 0;
int totkw;
const char *arg_name= NULL;
PyObject *item;
totkw = kw ? PyDict_Size(kw):0;
RNA_STRUCT_BEGIN(ptr, prop) {
arg_name= RNA_property_identifier(prop);
if (strcmp(arg_name, "rna_type")==0) continue;
if (kw==NULL) {
PyErr_Format( PyExc_TypeError, "%.200s: no keywords, expected \"%.200s\"", error_prefix, arg_name ? arg_name : "<UNKNOWN>");
error_val= -1;
break;
}
item= PyDict_GetItemString(kw, arg_name); /* wont set an error */
if (item == NULL) {
if(all_args) {
PyErr_Format( PyExc_TypeError, "%.200s: keyword \"%.200s\" missing", error_prefix, arg_name ? arg_name : "<UNKNOWN>");
error_val = -1; /* pyrna_py_to_prop sets the error */
break;
}
} else {
if (pyrna_py_to_prop(ptr, prop, NULL, item, error_prefix)) {
error_val= -1;
break;
}
totkw--;
}
}
RNA_STRUCT_END;
if (error_val==0 && totkw > 0) { /* some keywords were given that were not used :/ */
PyObject *key, *value;
Py_ssize_t pos = 0;
while (PyDict_Next(kw, &pos, &key, &value)) {
arg_name= _PyUnicode_AsString(key);
if (RNA_struct_find_property(ptr, arg_name) == NULL) break;
arg_name= NULL;
}
PyErr_Format( PyExc_TypeError, "%.200s: keyword \"%.200s\" unrecognized", error_prefix, arg_name ? arg_name : "<UNKNOWN>");
error_val = -1;
}
return error_val;
}
static PyObject * pyrna_func_call(PyObject * self, PyObject *args, PyObject *kw);
PyObject *pyrna_func_to_py(BPy_StructRNA *pyrna, FunctionRNA *func)
{
static PyMethodDef func_meth = {"<generic rna function>", (PyCFunction)pyrna_func_call, METH_VARARGS|METH_KEYWORDS, "python rna function"};
PyObject *self;
PyObject *ret;
if(func==NULL) {
PyErr_Format( PyExc_RuntimeError, "%.200s: type attempted to get NULL function", RNA_struct_identifier(pyrna->ptr.type));
return NULL;
}
self= PyTuple_New(2);
PyTuple_SET_ITEM(self, 0, (PyObject *)pyrna);
Py_INCREF(pyrna);
PyTuple_SET_ITEM(self, 1, PyCObject_FromVoidPtr((void *)func, NULL));
ret= PyCFunction_New(&func_meth, self);
Py_DECREF(self);
return ret;
}
int pyrna_py_to_prop(PointerRNA *ptr, PropertyRNA *prop, void *data, PyObject *value, const char *error_prefix)
{
/* XXX hard limits should be checked here */
int type = RNA_property_type(prop);
int len = RNA_property_array_length(prop);
if (len > 0) {
PyObject *item;
int py_len = -1;
int i;
#ifdef USE_MATHUTILS
if(MatrixObject_Check(value)) {
MatrixObject *mat = (MatrixObject*)value;
if(!BaseMath_ReadCallback(mat))
return -1;
py_len = mat->rowSize * mat->colSize;
} else /* continue... */
#endif
if (PySequence_Check(value)) {
py_len= (int)PySequence_Length(value);
}
else {
PyErr_Format(PyExc_TypeError, "%.200s RNA array assignment expected a sequence instead of %.200s instance.", error_prefix, Py_TYPE(value)->tp_name);
return -1;
}
/* done getting the length */
if (py_len != len) {
PyErr_Format(PyExc_TypeError, "%.200s python sequence length %d did not match the RNA array length %d.", error_prefix, py_len, len);
return -1;
}
/* for arrays we have a limited number of types */
switch (type) {
case PROP_BOOLEAN:
{
int *param_arr;
if(data) param_arr= (int*)data;
else param_arr= MEM_mallocN(sizeof(int) * len, "pyrna bool array");
/* collect the variables before assigning, incase one of them is incorrect */
for (i=0; i<len; i++) {
item = PySequence_GetItem(value, i);
param_arr[i] = PyObject_IsTrue( item );
Py_DECREF(item);
if (param_arr[i] < 0) {
if(data==NULL)
MEM_freeN(param_arr);
PyErr_Format(PyExc_AttributeError, "%.200s one or more of the values in the sequence is not a boolean", error_prefix);
return -1;
}
}
if(data==NULL) {
RNA_property_boolean_set_array(ptr, prop, param_arr);
MEM_freeN(param_arr);
}
break;
}
case PROP_INT:
{
int *param_arr;
if(data) param_arr= (int*)data;
else param_arr= MEM_mallocN(sizeof(int) * len, "pyrna int array");
/* collect the variables */
for (i=0; i<len; i++) {
item = PySequence_GetItem(value, i);
param_arr[i] = (int)PyLong_AsSsize_t(item); /* deal with any errors later */
Py_DECREF(item);
}
if (PyErr_Occurred()) {
if(data==NULL)
MEM_freeN(param_arr);
PyErr_Format(PyExc_AttributeError, "%.200s one or more of the values in the sequence could not be used as an int", error_prefix);
return -1;
}
if(data==NULL) {
RNA_property_int_set_array(ptr, prop, param_arr);
MEM_freeN(param_arr);
}
break;
}
case PROP_FLOAT:
{
float *param_arr;
if(data) param_arr = (float*)data;
else param_arr = MEM_mallocN(sizeof(float) * len, "pyrna float array");
#ifdef USE_MATHUTILS
if(MatrixObject_Check(value) && RNA_property_subtype(prop) == PROP_MATRIX) {
MatrixObject *mat = (MatrixObject*)value;
memcpy(param_arr, mat->contigPtr, sizeof(float) * len);
} else /* continue... */
#endif
{
/* collect the variables */
for (i=0; i<len; i++) {
item = PySequence_GetItem(value, i);
param_arr[i] = (float)PyFloat_AsDouble(item); /* deal with any errors later */
Py_DECREF(item);
}
}
if (PyErr_Occurred()) {
if(data==NULL)
MEM_freeN(param_arr);
PyErr_Format(PyExc_AttributeError, "%.200s one or more of the values in the sequence could not be used as a float", error_prefix);
return -1;
}
if(data==NULL) {
RNA_property_float_set_array(ptr, prop, param_arr);
MEM_freeN(param_arr);
}
break;
}
}
} else {
/* Normal Property (not an array) */
/* see if we can coorce into a python type - PropertyType */
switch (type) {
case PROP_BOOLEAN:
{
int param = PyObject_IsTrue( value );
if( param < 0 ) {
PyErr_Format(PyExc_TypeError, "%.200s expected True/False or 0/1", error_prefix);
return -1;
} else {
if(data) *((int*)data)= param;
else RNA_property_boolean_set(ptr, prop, param);
}
break;
}
case PROP_INT:
{
int param = PyLong_AsSsize_t(value);
if (PyErr_Occurred()) {
PyErr_Format(PyExc_TypeError, "%.200s expected an int type", error_prefix);
return -1;
} else {
if(data) *((int*)data)= param;
else RNA_property_int_set(ptr, prop, param);
}
break;
}
case PROP_FLOAT:
{
float param = PyFloat_AsDouble(value);
if (PyErr_Occurred()) {
PyErr_Format(PyExc_TypeError, "%.200s expected a float type", error_prefix);
return -1;
} else {
if(data) *((float*)data)= param;
else RNA_property_float_set(ptr, prop, param);
}
break;
}
case PROP_STRING:
{
char *param = _PyUnicode_AsString(value);
if (param==NULL) {
PyErr_Format(PyExc_TypeError, "%.200s expected a string type", error_prefix);
return -1;
} else {
if(data) *((char**)data)= param;
else RNA_property_string_set(ptr, prop, param);
}
break;
}
case PROP_ENUM:
{
char *param = _PyUnicode_AsString(value);
if (param==NULL) {
char *enum_str= pyrna_enum_as_string(ptr, prop);
PyErr_Format(PyExc_TypeError, "%.200s expected a string enum type in (%.200s)", error_prefix, enum_str);
MEM_freeN(enum_str);
return -1;
} else {
int val;
if (RNA_property_enum_value(BPy_GetContext(), ptr, prop, param, &val)) {
if(data) *((int*)data)= val;
else RNA_property_enum_set(ptr, prop, val);
} else {
char *enum_str= pyrna_enum_as_string(ptr, prop);
PyErr_Format(PyExc_TypeError, "%.200s enum \"%.200s\" not found in (%.200s)", error_prefix, param, enum_str);
MEM_freeN(enum_str);
return -1;
}
}
break;
}
case PROP_POINTER:
{
StructRNA *ptype= RNA_property_pointer_type(ptr, prop);
if(!BPy_StructRNA_Check(value) && value != Py_None) {
PointerRNA tmp;
RNA_pointer_create(NULL, ptype, NULL, &tmp);
PyErr_Format(PyExc_TypeError, "%.200s expected a %.200s type", error_prefix, RNA_struct_identifier(tmp.type));
return -1;
} else {
BPy_StructRNA *param= (BPy_StructRNA*)value;
int raise_error= FALSE;
if(data) {
int flag = RNA_property_flag(prop);
if(flag & PROP_RNAPTR) {
if(value == Py_None)
memset(data, 0, sizeof(PointerRNA));
else
*((PointerRNA*)data)= param->ptr;
}
else if(value == Py_None) {
*((void**)data)= NULL;
}
else if(RNA_struct_is_a(param->ptr.type, ptype)) {
*((void**)data)= param->ptr.data;
}
else {
raise_error= TRUE;
}
}
else {
/* data==NULL, assign to RNA */
if(value == Py_None) {
PointerRNA valueptr;
memset(&valueptr, 0, sizeof(valueptr));
RNA_property_pointer_set(ptr, prop, valueptr);
}
else if(RNA_struct_is_a(param->ptr.type, ptype)) {
RNA_property_pointer_set(ptr, prop, param->ptr);
}
else {
PointerRNA tmp;
RNA_pointer_create(NULL, ptype, NULL, &tmp);
PyErr_Format(PyExc_TypeError, "%.200s expected a %.200s type", error_prefix, RNA_struct_identifier(tmp.type));
return -1;
}
}
if(raise_error) {
PointerRNA tmp;
RNA_pointer_create(NULL, ptype, NULL, &tmp);
PyErr_Format(PyExc_TypeError, "%.200s expected a %.200s type", error_prefix, RNA_struct_identifier(tmp.type));
return -1;
}
}
break;
}
case PROP_COLLECTION:
{
int seq_len, i;
PyObject *item;
PointerRNA itemptr;
ListBase *lb;
CollectionPointerLink *link;
lb= (data)? (ListBase*)data: NULL;
/* convert a sequence of dict's into a collection */
if(!PySequence_Check(value)) {
PyErr_Format(PyExc_TypeError, "%.200s expected a sequence of dicts for an RNA collection", error_prefix);
return -1;
}
seq_len = PySequence_Length(value);
for(i=0; i<seq_len; i++) {
item= PySequence_GetItem(value, i);
if(item==NULL || PyDict_Check(item)==0) {
PyErr_Format(PyExc_TypeError, "%.200s expected a sequence of dicts for an RNA collection", error_prefix);
Py_XDECREF(item);
return -1;
}
if(lb) {
link= MEM_callocN(sizeof(CollectionPointerLink), "PyCollectionPointerLink");
link->ptr= itemptr;
BLI_addtail(lb, link);
}
else
RNA_property_collection_add(ptr, prop, &itemptr);
if(pyrna_pydict_to_props(&itemptr, item, 1, "Converting a python list to an RNA collection")==-1) {
Py_DECREF(item);
return -1;
}
Py_DECREF(item);
}
break;
}
default:
PyErr_Format(PyExc_AttributeError, "%.200s unknown property type (pyrna_py_to_prop)", error_prefix);
return -1;
break;
}
}
return 0;
}
static PyObject * pyrna_prop_to_py_index(PointerRNA *ptr, PropertyRNA *prop, int index)
{
PyObject *ret;
int type = RNA_property_type(prop);
/* see if we can coorce into a python type - PropertyType */
switch (type) {
case PROP_BOOLEAN:
ret = PyBool_FromLong( RNA_property_boolean_get_index(ptr, prop, index) );
break;
case PROP_INT:
ret = PyLong_FromSsize_t( (Py_ssize_t)RNA_property_int_get_index(ptr, prop, index) );
break;
case PROP_FLOAT:
ret = PyFloat_FromDouble( RNA_property_float_get_index(ptr, prop, index) );
break;
default:
PyErr_SetString(PyExc_AttributeError, "not an array type");
ret = NULL;
break;
}
return ret;
}
static int pyrna_py_to_prop_index(PointerRNA *ptr, PropertyRNA *prop, int index, PyObject *value)
{
int ret = 0;
int type = RNA_property_type(prop);
/* see if we can coorce into a python type - PropertyType */
switch (type) {
case PROP_BOOLEAN:
{
int param = PyObject_IsTrue( value );
if( param < 0 ) {
PyErr_SetString(PyExc_TypeError, "expected True/False or 0/1");
ret = -1;
} else {
RNA_property_boolean_set_index(ptr, prop, index, param);
}
break;
}
case PROP_INT:
{
int param = PyLong_AsSsize_t(value);
if (PyErr_Occurred()) {
PyErr_SetString(PyExc_TypeError, "expected an int type");
ret = -1;
} else {
RNA_property_int_set_index(ptr, prop, index, param);
}
break;
}
case PROP_FLOAT:
{
float param = PyFloat_AsDouble(value);
if (PyErr_Occurred()) {
PyErr_SetString(PyExc_TypeError, "expected a float type");
ret = -1;
} else {
RNA_property_float_set_index(ptr, prop, index, param);
}
break;
}
default:
PyErr_SetString(PyExc_AttributeError, "not an array type");
ret = -1;
break;
}
return ret;
}
//---------------sequence-------------------------------------------
static Py_ssize_t pyrna_prop_len( BPy_PropertyRNA * self )
{
Py_ssize_t len;
if (RNA_property_type(self->prop) == PROP_COLLECTION) {
len = RNA_property_collection_length(&self->ptr, self->prop);
} else {
len = RNA_property_array_length(self->prop);
if (len==0) { /* not an array*/
PyErr_SetString(PyExc_AttributeError, "len() only available for collection RNA types");
return -1;
}
}
return len;
}
/* internal use only */
static PyObject *prop_subscript_collection_int(BPy_PropertyRNA * self, int keynum)
{
PointerRNA newptr;
if(keynum < 0) keynum += RNA_property_collection_length(&self->ptr, self->prop);
if(RNA_property_collection_lookup_int(&self->ptr, self->prop, keynum, &newptr))
return pyrna_struct_CreatePyObject(&newptr);
PyErr_Format(PyExc_IndexError, "index %d out of range", keynum);
return NULL;
}
static PyObject *prop_subscript_array_int(BPy_PropertyRNA * self, int keynum)
{
int len= RNA_property_array_length(self->prop);
if(keynum < 0) keynum += len;
if(keynum >= 0 && keynum < len)
return pyrna_prop_to_py_index(&self->ptr, self->prop, keynum);
PyErr_Format(PyExc_IndexError, "index %d out of range", keynum);
return NULL;
}
static PyObject *prop_subscript_collection_str(BPy_PropertyRNA * self, char *keyname)
{
PointerRNA newptr;
if(RNA_property_collection_lookup_string(&self->ptr, self->prop, keyname, &newptr))
return pyrna_struct_CreatePyObject(&newptr);
PyErr_Format(PyExc_KeyError, "key \"%.200s\" not found", keyname);
return NULL;
}
/* static PyObject *prop_subscript_array_str(BPy_PropertyRNA * self, char *keyname) */
static PyObject *prop_subscript_collection_slice(BPy_PropertyRNA * self, int start, int stop)
{
PointerRNA newptr;
PyObject *list = PyList_New(stop - start);
int count;
start = MIN2(start,stop); /* values are clamped from */
for(count = start; count < stop; count++) {
if(RNA_property_collection_lookup_int(&self->ptr, self->prop, count - start, &newptr)) {
PyList_SetItem(list, count - start, pyrna_struct_CreatePyObject(&newptr));
}
else {
Py_DECREF(list);
PyErr_SetString(PyExc_RuntimeError, "error getting an rna struct from a collection");
return NULL;
}
}
return list;
}
static PyObject *prop_subscript_array_slice(BPy_PropertyRNA * self, int start, int stop)
{
PyObject *list = PyList_New(stop - start);
int count;
start = MIN2(start,stop); /* values are clamped from PySlice_GetIndicesEx */
for(count = start; count < stop; count++)
PyList_SetItem(list, count - start, pyrna_prop_to_py_index(&self->ptr, self->prop, count));
return list;
}
static PyObject *prop_subscript_collection(BPy_PropertyRNA * self, PyObject *key)
{
if (PyUnicode_Check(key)) {
return prop_subscript_collection_str(self, _PyUnicode_AsString(key));
}
else if (PyIndex_Check(key)) {
Py_ssize_t i = PyNumber_AsSsize_t(key, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return NULL;
return prop_subscript_collection_int(self, i);
}
else if (PySlice_Check(key)) {
int len= RNA_property_collection_length(&self->ptr, self->prop);
Py_ssize_t start, stop, step, slicelength;
if (PySlice_GetIndicesEx((PySliceObject*)key, len, &start, &stop, &step, &slicelength) < 0)
return NULL;
if (slicelength <= 0) {
return PyList_New(0);
}
else if (step == 1) {
return prop_subscript_collection_slice(self, start, stop);
}
else {
PyErr_SetString(PyExc_TypeError, "slice steps not supported with rna");
return NULL;
}
}
else {
PyErr_Format(PyExc_TypeError, "invalid rna key, key must be a string or an int instead of %.200s instance.", Py_TYPE(key)->tp_name);
return NULL;
}
}
static PyObject *prop_subscript_array(BPy_PropertyRNA * self, PyObject *key)
{
/*if (PyUnicode_Check(key)) {
return prop_subscript_array_str(self, _PyUnicode_AsString(key));
} else*/
if (PyIndex_Check(key)) {
Py_ssize_t i = PyNumber_AsSsize_t(key, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return NULL;
return prop_subscript_array_int(self, PyLong_AsSsize_t(key));
}
else if (PySlice_Check(key)) {
int len= RNA_property_array_length(self->prop);
Py_ssize_t start, stop, step, slicelength;
if (PySlice_GetIndicesEx((PySliceObject*)key, len, &start, &stop, &step, &slicelength) < 0)
return NULL;
if (slicelength <= 0) {
return PyList_New(0);
}
else if (step == 1) {
return prop_subscript_array_slice(self, start, stop);
}
else {
PyErr_SetString(PyExc_TypeError, "slice steps not supported with rna");
return NULL;
}
}
else {
PyErr_SetString(PyExc_AttributeError, "invalid key, key must be an int");
return NULL;
}
}
static PyObject *pyrna_prop_subscript( BPy_PropertyRNA * self, PyObject *key )
{
if (RNA_property_type(self->prop) == PROP_COLLECTION) {
return prop_subscript_collection(self, key);
} else if (RNA_property_array_length(self->prop)) { /* arrays are currently fixed length, zero length means its not an array */
return prop_subscript_array(self, key);
} else {
PyErr_SetString(PyExc_TypeError, "rna type is not an array or a collection");
return NULL;
}
}
static int prop_subscript_ass_array_slice(BPy_PropertyRNA * self, int begin, int end, PyObject *value)
{
int count;
/* values are clamped from */
begin = MIN2(begin,end);
for(count = begin; count < end; count++) {
if(pyrna_py_to_prop_index(&self->ptr, self->prop, count - begin, value) == -1) {
/* TODO - this is wrong since some values have been assigned... will need to fix that */
return -1; /* pyrna_struct_CreatePyObject should set the error */
}
}
return 0;
}
static int prop_subscript_ass_array_int(BPy_PropertyRNA * self, int keynum, PyObject *value)
{
int len= RNA_property_array_length(self->prop);
if(keynum < 0) keynum += len;
if(keynum >= 0 && keynum < len)
return pyrna_py_to_prop_index(&self->ptr, self->prop, keynum, value);
PyErr_SetString(PyExc_IndexError, "out of range");
return -1;
}
static int pyrna_prop_ass_subscript( BPy_PropertyRNA * self, PyObject *key, PyObject *value )
{
/* char *keyname = NULL; */ /* not supported yet */
if (!RNA_property_editable(&self->ptr, self->prop)) {
PyErr_Format( PyExc_AttributeError, "PropertyRNA - attribute \"%.200s\" from \"%.200s\" is read-only", RNA_property_identifier(self->prop), RNA_struct_identifier(self->ptr.type) );
return -1;
}
/* maybe one day we can support this... */
if (RNA_property_type(self->prop) == PROP_COLLECTION) {
PyErr_Format( PyExc_AttributeError, "PropertyRNA - attribute \"%.200s\" from \"%.200s\" is a collection, assignment not supported", RNA_property_identifier(self->prop), RNA_struct_identifier(self->ptr.type) );
return -1;
}
if (PyIndex_Check(key)) {
Py_ssize_t i = PyNumber_AsSsize_t(key, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return -1;
return prop_subscript_ass_array_int(self, i, value);
}
else if (PySlice_Check(key)) {
int len= RNA_property_array_length(self->prop);
Py_ssize_t start, stop, step, slicelength;
if (PySlice_GetIndicesEx((PySliceObject*)key, len, &start, &stop, &step, &slicelength) < 0)
return -1;
if (slicelength <= 0) {
return 0;
}
else if (step == 1) {
return prop_subscript_ass_array_slice(self, start, stop, value);
}
else {
PyErr_SetString(PyExc_TypeError, "slice steps not supported with rna");
return -1;
}
}
else {
PyErr_SetString(PyExc_AttributeError, "invalid key, key must be an int");
return -1;
}
}
static PyMappingMethods pyrna_prop_as_mapping = {
( lenfunc ) pyrna_prop_len, /* mp_length */
( binaryfunc ) pyrna_prop_subscript, /* mp_subscript */
( objobjargproc ) pyrna_prop_ass_subscript, /* mp_ass_subscript */
};
static int pyrna_prop_contains(BPy_PropertyRNA * self, PyObject *value)
{
PointerRNA newptr; /* not used, just so RNA_property_collection_lookup_string runs */
char *keyname = _PyUnicode_AsString(value);
if(keyname==NULL) {
PyErr_SetString(PyExc_TypeError, "PropertyRNA - key in prop, key must be a string type");
return -1;
}
if (RNA_property_type(self->prop) != PROP_COLLECTION) {
PyErr_SetString(PyExc_TypeError, "PropertyRNA - key in prop, is only valid for collection types");
return -1;
}
if (RNA_property_collection_lookup_string(&self->ptr, self->prop, keyname, &newptr))
return 1;
return 0;
}
static PySequenceMethods pyrna_prop_as_sequence = {
NULL, /* Cant set the len otherwise it can evaluate as false */
NULL, /* sq_concat */
NULL, /* sq_repeat */
NULL, /* sq_item */
NULL, /* sq_slice */
NULL, /* sq_ass_item */
NULL, /* sq_ass_slice */
(objobjproc)pyrna_prop_contains, /* sq_contains */
};
static PyObject *pyrna_struct_keyframe_insert(BPy_StructRNA * self, PyObject *args)
{
char *path;
int index= 0;
float cfra = CTX_data_scene(BPy_GetContext())->r.cfra;
if(!RNA_struct_is_ID(self->ptr.type)) {
PyErr_SetString( PyExc_TypeError, "StructRNA - keyframe_insert only for ID type");
return NULL;
}
if (!PyArg_ParseTuple(args, "s|if:keyframe_insert", &path, &index, &cfra))
return NULL;
return PyBool_FromLong( insert_keyframe((ID *)self->ptr.data, NULL, NULL, path, index, cfra, 0));
}
static PyObject *pyrna_struct_dir(BPy_StructRNA * self)
{
PyObject *ret, *dict;
PyObject *pystring;
/* for looping over attrs and funcs */
PropertyRNA *iterprop;
/* Include this incase this instance is a subtype of a python class
* In these instances we may want to return a function or variable provided by the subtype
* */
if (BPy_StructRNA_CheckExact(self)) {
ret = PyList_New(0);
} else {
pystring = PyUnicode_FromString("__dict__");
dict = PyObject_GenericGetAttr((PyObject *)self, pystring);
Py_DECREF(pystring);
if (dict==NULL) {
PyErr_Clear();
ret = PyList_New(0);
}
else {
ret = PyDict_Keys(dict);
Py_DECREF(dict);
}
}
/* Collect RNA items*/
{
/*
* Collect RNA attributes
*/
char name[256], *nameptr;
iterprop= RNA_struct_iterator_property(self->ptr.type);
RNA_PROP_BEGIN(&self->ptr, itemptr, iterprop) {
nameptr= RNA_struct_name_get_alloc(&itemptr, name, sizeof(name));
if(nameptr) {
pystring = PyUnicode_FromString(nameptr);
PyList_Append(ret, pystring);
Py_DECREF(pystring);
if(name != nameptr)
MEM_freeN(nameptr);
}
}
RNA_PROP_END;
}
{
/*
* Collect RNA function items
*/
PointerRNA tptr;
RNA_pointer_create(NULL, &RNA_Struct, self->ptr.type, &tptr);
iterprop= RNA_struct_find_property(&tptr, "functions");
RNA_PROP_BEGIN(&tptr, itemptr, iterprop) {
pystring = PyUnicode_FromString(RNA_function_identifier(itemptr.data));
PyList_Append(ret, pystring);
Py_DECREF(pystring);
}
RNA_PROP_END;
}
if(self->ptr.type == &RNA_Context) {
ListBase lb = CTX_data_dir_get(self->ptr.data);
LinkData *link;
for(link=lb.first; link; link=link->next) {
pystring = PyUnicode_FromString(link->data);
PyList_Append(ret, pystring);
Py_DECREF(pystring);
}
BLI_freelistN(&lb);
}
return ret;
}
//---------------getattr--------------------------------------------
static PyObject *pyrna_struct_getattro( BPy_StructRNA * self, PyObject *pyname )
{
char *name = _PyUnicode_AsString(pyname);
PyObject *ret;
PropertyRNA *prop;
FunctionRNA *func;
/* Include this incase this instance is a subtype of a python class
* In these instances we may want to return a function or variable provided by the subtype
*
* Also needed to return methods when its not a subtype
* */
ret = PyObject_GenericGetAttr((PyObject *)self, pyname);
if (ret) return ret;
else PyErr_Clear();
/* done with subtypes */
if ((prop = RNA_struct_find_property(&self->ptr, name))) {
ret = pyrna_prop_to_py(&self->ptr, prop);
}
else if ((func = RNA_struct_find_function(&self->ptr, name))) {
ret = pyrna_func_to_py(self, func);
}
else if (self->ptr.type == &RNA_Context) {
PointerRNA newptr;
ListBase newlb;
CTX_data_get(self->ptr.data, name, &newptr, &newlb);
if (newptr.data) {
ret = pyrna_struct_CreatePyObject(&newptr);
}
else if (newlb.first) {
CollectionPointerLink *link;
PyObject *linkptr;
ret = PyList_New(0);
for(link=newlb.first; link; link=link->next) {
linkptr= pyrna_struct_CreatePyObject(&link->ptr);
PyList_Append(ret, linkptr);
Py_DECREF(linkptr);
}
}
else {
ret = Py_None;
Py_INCREF(ret);
}
BLI_freelistN(&newlb);
}
else {
PyErr_Format( PyExc_AttributeError, "StructRNA - Attribute \"%.200s\" not found", name);
ret = NULL;
}
return ret;
}
//--------------- setattr-------------------------------------------
static int pyrna_struct_setattro( BPy_StructRNA * self, PyObject *pyname, PyObject * value )
{
char *name = _PyUnicode_AsString(pyname);
PropertyRNA *prop = RNA_struct_find_property(&self->ptr, name);
if (prop==NULL) {
if (!BPy_StructRNA_CheckExact(self) && PyObject_GenericSetAttr((PyObject *)self, pyname, value) >= 0) {
return 0;
}
else {
PyErr_Format( PyExc_AttributeError, "StructRNA - Attribute \"%.200s\" not found", name);
return -1;
}
}
if (!RNA_property_editable(&self->ptr, prop)) {
PyErr_Format( PyExc_AttributeError, "StructRNA - Attribute \"%.200s\" from \"%.200s\" is read-only", RNA_property_identifier(prop), RNA_struct_identifier(self->ptr.type) );
return -1;
}
/* pyrna_py_to_prop sets its own exceptions */
return pyrna_py_to_prop(&self->ptr, prop, NULL, value, "StructRNA - Attribute (setattr):");
}
static PyObject *pyrna_prop_keys(BPy_PropertyRNA *self)
{
PyObject *ret;
if (RNA_property_type(self->prop) != PROP_COLLECTION) {
PyErr_SetString( PyExc_TypeError, "keys() is only valid for collection types" );
ret = NULL;
} else {
PyObject *item;
char name[256], *nameptr;
ret = PyList_New(0);
RNA_PROP_BEGIN(&self->ptr, itemptr, self->prop) {
nameptr= RNA_struct_name_get_alloc(&itemptr, name, sizeof(name));
if(nameptr) {
/* add to python list */
item = PyUnicode_FromString( nameptr );
PyList_Append(ret, item);
Py_DECREF(item);
/* done */
if(name != nameptr)
MEM_freeN(nameptr);
}
}
RNA_PROP_END;
}
return ret;
}
static PyObject *pyrna_prop_items(BPy_PropertyRNA *self)
{
PyObject *ret;
if (RNA_property_type(self->prop) != PROP_COLLECTION) {
PyErr_SetString( PyExc_TypeError, "items() is only valid for collection types" );
ret = NULL;
} else {
PyObject *item;
char name[256], *nameptr;
int i= 0;
ret = PyList_New(0);
RNA_PROP_BEGIN(&self->ptr, itemptr, self->prop) {
if(itemptr.data) {
/* add to python list */
item= PyTuple_New(2);
nameptr= RNA_struct_name_get_alloc(&itemptr, name, sizeof(name));
if(nameptr) {
PyTuple_SET_ITEM(item, 0, PyUnicode_FromString( nameptr ));
if(name != nameptr)
MEM_freeN(nameptr);
}
else {
PyTuple_SET_ITEM(item, 0, PyLong_FromSsize_t(i)); /* a bit strange but better then returning an empty list */
}
PyTuple_SET_ITEM(item, 1, pyrna_struct_CreatePyObject(&itemptr));
PyList_Append(ret, item);
Py_DECREF(item);
i++;
}
}
RNA_PROP_END;
}
return ret;
}
static PyObject *pyrna_prop_values(BPy_PropertyRNA *self)
{
PyObject *ret;
if (RNA_property_type(self->prop) != PROP_COLLECTION) {
PyErr_SetString( PyExc_TypeError, "values() is only valid for collection types" );
ret = NULL;
} else {
PyObject *item;
ret = PyList_New(0);
RNA_PROP_BEGIN(&self->ptr, itemptr, self->prop) {
item = pyrna_struct_CreatePyObject(&itemptr);
PyList_Append(ret, item);
Py_DECREF(item);
}
RNA_PROP_END;
}
return ret;
}
static PyObject *pyrna_prop_get(BPy_PropertyRNA *self, PyObject *args)
{
PointerRNA newptr;
char *key;
PyObject* def = Py_None;
if (!PyArg_ParseTuple(args, "s|O:get", &key, &def))
return NULL;
if(RNA_property_collection_lookup_string(&self->ptr, self->prop, key, &newptr))
return pyrna_struct_CreatePyObject(&newptr);
Py_INCREF(def);
return def;
}
static void foreach_attr_type( BPy_PropertyRNA *self, char *attr,
/* values to assign */
RawPropertyType *raw_type, int *attr_tot, int *attr_signed )
{
PropertyRNA *prop;
*raw_type= -1;
*attr_tot= 0;
*attr_signed= FALSE;
RNA_PROP_BEGIN(&self->ptr, itemptr, self->prop) {
prop = RNA_struct_find_property(&itemptr, attr);
*raw_type= RNA_property_raw_type(prop);
*attr_tot = RNA_property_array_length(prop);
*attr_signed= (RNA_property_subtype(prop)==PROP_UNSIGNED) ? FALSE:TRUE;
break;
}
RNA_PROP_END;
}
/* pyrna_prop_foreach_get/set both use this */
static int foreach_parse_args(
BPy_PropertyRNA *self, PyObject *args,
/*values to assign */
char **attr, PyObject **seq, int *tot, int *size, RawPropertyType *raw_type, int *attr_tot, int *attr_signed)
{
#if 0
int array_tot;
int target_tot;
#endif
*size= *raw_type= *attr_tot= *attr_signed= FALSE;
if(!PyArg_ParseTuple(args, "sO", attr, seq) || (!PySequence_Check(*seq) && PyObject_CheckBuffer(*seq))) {
PyErr_SetString( PyExc_TypeError, "foreach_get(attr, sequence) expects a string and a sequence" );
return -1;
}
*tot= PySequence_Length(*seq); // TODO - buffer may not be a sequence! array.array() is tho.
if(*tot>0) {
foreach_attr_type(self, *attr, raw_type, attr_tot, attr_signed);
*size= RNA_raw_type_sizeof(*raw_type);
#if 0 // works fine but not strictly needed, we could allow RNA_property_collection_raw_* to do the checks
if((*attr_tot) < 1)
*attr_tot= 1;
if (RNA_property_type(self->prop) == PROP_COLLECTION)
array_tot = RNA_property_collection_length(&self->ptr, self->prop);
else
array_tot = RNA_property_array_length(self->prop);
target_tot= array_tot * (*attr_tot);
/* rna_access.c - rna_raw_access(...) uses this same method */
if(target_tot != (*tot)) {
PyErr_Format( PyExc_TypeError, "foreach_get(attr, sequence) sequence length mismatch given %d, needed %d", *tot, target_tot);
return -1;
}
#endif
}
return 0;
}
static int foreach_compat_buffer(RawPropertyType raw_type, int attr_signed, const char *format)
{
char f = format ? *format:'B'; /* B is assumed when not set */
switch(raw_type) {
case PROP_RAW_CHAR:
if (attr_signed) return (f=='b') ? 1:0;
else return (f=='B') ? 1:0;
case PROP_RAW_SHORT:
if (attr_signed) return (f=='h') ? 1:0;
else return (f=='H') ? 1:0;
case PROP_RAW_INT:
if (attr_signed) return (f=='i') ? 1:0;
else return (f=='I') ? 1:0;
case PROP_RAW_FLOAT:
return (f=='f') ? 1:0;
case PROP_RAW_DOUBLE:
return (f=='d') ? 1:0;
}
return 0;
}
static PyObject *foreach_getset(BPy_PropertyRNA *self, PyObject *args, int set)
{
PyObject *item;
int i=0, ok, buffer_is_compat;
void *array= NULL;
/* get/set both take the same args currently */
char *attr;
PyObject *seq;
int tot, size, attr_tot, attr_signed;
RawPropertyType raw_type;
if(foreach_parse_args(self, args, &attr, &seq, &tot, &size, &raw_type, &attr_tot, &attr_signed) < 0)
return NULL;
if(tot==0)
Py_RETURN_NONE;
if(set) { /* get the array from python */
buffer_is_compat = FALSE;
if(PyObject_CheckBuffer(seq)) {
Py_buffer buf;
PyObject_GetBuffer(seq, &buf, PyBUF_SIMPLE | PyBUF_FORMAT);
/* check if the buffer matches */
buffer_is_compat = foreach_compat_buffer(raw_type, attr_signed, buf.format);
if(buffer_is_compat) {
ok = RNA_property_collection_raw_set(NULL, &self->ptr, self->prop, attr, buf.buf, raw_type, tot);
}
PyBuffer_Release(&buf);
}
/* could not use the buffer, fallback to sequence */
if(!buffer_is_compat) {
array= PyMem_Malloc(size * tot);
for( ; i<tot; i++) {
item= PySequence_GetItem(seq, i);
switch(raw_type) {
case PROP_RAW_CHAR:
((char *)array)[i]= (char)PyLong_AsSsize_t(item);
break;
case PROP_RAW_SHORT:
((short *)array)[i]= (short)PyLong_AsSsize_t(item);
break;
case PROP_RAW_INT:
((int *)array)[i]= (int)PyLong_AsSsize_t(item);
break;
case PROP_RAW_FLOAT:
((float *)array)[i]= (float)PyFloat_AsDouble(item);
break;
case PROP_RAW_DOUBLE:
((double *)array)[i]= (double)PyFloat_AsDouble(item);
break;
}
Py_DECREF(item);
}
ok = RNA_property_collection_raw_set(NULL, &self->ptr, self->prop, attr, array, raw_type, tot);
}
}
else {
buffer_is_compat = FALSE;
if(PyObject_CheckBuffer(seq)) {
Py_buffer buf;
PyObject_GetBuffer(seq, &buf, PyBUF_SIMPLE | PyBUF_FORMAT);
/* check if the buffer matches, TODO - signed/unsigned types */
buffer_is_compat = foreach_compat_buffer(raw_type, attr_signed, buf.format);
if(buffer_is_compat) {
ok = RNA_property_collection_raw_get(NULL, &self->ptr, self->prop, attr, buf.buf, raw_type, tot);
}
PyBuffer_Release(&buf);
}
/* could not use the buffer, fallback to sequence */
if(!buffer_is_compat) {
array= PyMem_Malloc(size * tot);
ok = RNA_property_collection_raw_get(NULL, &self->ptr, self->prop, attr, array, raw_type, tot);
if(!ok) i= tot; /* skip the loop */
for( ; i<tot; i++) {
switch(raw_type) {
case PROP_RAW_CHAR:
item= PyLong_FromSsize_t( (Py_ssize_t) ((char *)array)[i] );
break;
case PROP_RAW_SHORT:
item= PyLong_FromSsize_t( (Py_ssize_t) ((short *)array)[i] );
break;
case PROP_RAW_INT:
item= PyLong_FromSsize_t( (Py_ssize_t) ((int *)array)[i] );
break;
case PROP_RAW_FLOAT:
item= PyFloat_FromDouble( (double) ((float *)array)[i] );
break;
case PROP_RAW_DOUBLE:
item= PyFloat_FromDouble( (double) ((double *)array)[i] );
break;
}
PySequence_SetItem(seq, i, item);
Py_DECREF(item);
}
}
}
if(PyErr_Occurred()) {
/* Maybe we could make our own error */
PyErr_Print();
PyErr_SetString(PyExc_SystemError, "could not access the py sequence");
return NULL;
}
if (!ok) {
PyErr_SetString(PyExc_SystemError, "internal error setting the array");
return NULL;
}
if(array)
PyMem_Free(array);
Py_RETURN_NONE;
}
static PyObject *pyrna_prop_foreach_get(BPy_PropertyRNA *self, PyObject *args)
{
return foreach_getset(self, args, 0);
}
static PyObject *pyrna_prop_foreach_set(BPy_PropertyRNA *self, PyObject *args)
{
return foreach_getset(self, args, 1);
}
/* A bit of a kludge, make a list out of a collection or array,
* then return the lists iter function, not especially fast but convenient for now */
PyObject *pyrna_prop_iter(BPy_PropertyRNA *self)
{
/* Try get values from a collection */
PyObject *ret = pyrna_prop_values(self);
if (ret==NULL) {
/* collection did not work, try array */
int len = RNA_property_array_length(self->prop);
if (len) {
int i;
PyErr_Clear();
ret = PyList_New(len);
for (i=0; i < len; i++) {
PyList_SET_ITEM(ret, i, pyrna_prop_to_py_index(&self->ptr, self->prop, i));
}
}
}
if (ret) {
/* we know this is a list so no need to PyIter_Check */
PyObject *iter = PyObject_GetIter(ret);
Py_DECREF(ret);
return iter;
}
PyErr_SetString( PyExc_TypeError, "this BPy_PropertyRNA object is not iterable" );
return NULL;
}
static struct PyMethodDef pyrna_struct_methods[] = {
/* maybe this become and ID function */
{"keyframe_insert", (PyCFunction)pyrna_struct_keyframe_insert, METH_VARARGS, NULL},
{"__dir__", (PyCFunction)pyrna_struct_dir, METH_NOARGS, NULL},
{NULL, NULL, 0, NULL}
};
static struct PyMethodDef pyrna_prop_methods[] = {
{"keys", (PyCFunction)pyrna_prop_keys, METH_NOARGS, NULL},
{"items", (PyCFunction)pyrna_prop_items, METH_NOARGS,NULL},
{"values", (PyCFunction)pyrna_prop_values, METH_NOARGS, NULL},
{"get", (PyCFunction)pyrna_prop_get, METH_VARARGS, NULL},
/* array accessor function */
{"foreach_get", (PyCFunction)pyrna_prop_foreach_get, METH_VARARGS, NULL},
{"foreach_set", (PyCFunction)pyrna_prop_foreach_set, METH_VARARGS, NULL},
{NULL, NULL, 0, NULL}
};
/* only needed for subtyping, so a new class gets a valid BPy_StructRNA
* todo - also accept useful args */
static PyObject * pyrna_struct_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
BPy_StructRNA *base = NULL;
if (!PyArg_ParseTuple(args, "O!:Base BPy_StructRNA", &pyrna_struct_Type, &base))
return NULL;
if (type == &pyrna_struct_Type) {
return pyrna_struct_CreatePyObject(&base->ptr);
} else {
BPy_StructRNA *ret = (BPy_StructRNA *) type->tp_alloc(type, 0);
ret->ptr = base->ptr;
return (PyObject *)ret;
}
}
/* only needed for subtyping, so a new class gets a valid BPy_StructRNA
* todo - also accept useful args */
static PyObject * pyrna_prop_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
BPy_PropertyRNA *base = NULL;
if (!PyArg_ParseTuple(args, "O!:Base BPy_PropertyRNA", &pyrna_prop_Type, &base))
return NULL;
if (type == &pyrna_prop_Type) {
return pyrna_prop_CreatePyObject(&base->ptr, base->prop);
} else {
BPy_PropertyRNA *ret = (BPy_PropertyRNA *) type->tp_alloc(type, 0);
ret->ptr = base->ptr;
ret->prop = base->prop;
return (PyObject *)ret;
}
}
PyObject *pyrna_param_to_py(PointerRNA *ptr, PropertyRNA *prop, void *data)
{
PyObject *ret;
int type = RNA_property_type(prop);
int len = RNA_property_array_length(prop);
int a;
if(len > 0) {
/* resolve the array from a new pytype */
ret = PyTuple_New(len);
switch (type) {
case PROP_BOOLEAN:
for(a=0; a<len; a++)
PyTuple_SET_ITEM(ret, a, PyBool_FromLong( ((int*)data)[a] ));
break;
case PROP_INT:
for(a=0; a<len; a++)
PyTuple_SET_ITEM(ret, a, PyLong_FromSsize_t( (Py_ssize_t)((int*)data)[a] ));
break;
case PROP_FLOAT:
for(a=0; a<len; a++)
PyTuple_SET_ITEM(ret, a, PyFloat_FromDouble( ((float*)data)[a] ));
break;
default:
PyErr_Format(PyExc_TypeError, "RNA Error: unknown array type \"%d\" (pyrna_param_to_py)", type);
ret = NULL;
break;
}
}
else {
/* see if we can coorce into a python type - PropertyType */
switch (type) {
case PROP_BOOLEAN:
ret = PyBool_FromLong( *(int*)data );
break;
case PROP_INT:
ret = PyLong_FromSsize_t( (Py_ssize_t)*(int*)data );
break;
case PROP_FLOAT:
ret = PyFloat_FromDouble( *(float*)data );
break;
case PROP_STRING:
{
ret = PyUnicode_FromString( *(char**)data );
break;
}
case PROP_ENUM:
{
const char *identifier;
int val = *(int*)data;
if (RNA_property_enum_identifier(BPy_GetContext(), ptr, prop, val, &identifier)) {
ret = PyUnicode_FromString( identifier );
} else {
/* prefer not fail silently incase of api errors, maybe disable it later */
char error_str[128];
sprintf(error_str, "RNA Warning: Current value \"%d\" matches no enum", val);
PyErr_Warn(PyExc_RuntimeWarning, error_str);
ret = PyUnicode_FromString( "" );
/*PyErr_Format(PyExc_AttributeError, "RNA Error: Current value \"%d\" matches no enum", val);
ret = NULL;*/
}
break;
}
case PROP_POINTER:
{
PointerRNA newptr;
StructRNA *type= RNA_property_pointer_type(ptr, prop);
int flag = RNA_property_flag(prop);
if(flag & PROP_RNAPTR) {
/* in this case we get the full ptr */
newptr= *(PointerRNA*)data;
}
else {
if(RNA_struct_is_ID(type)) {
RNA_id_pointer_create(*(void**)data, &newptr);
} else {
/* XXX this is missing the ID part! */
RNA_pointer_create(NULL, type, *(void**)data, &newptr);
}
}
if (newptr.data) {
ret = pyrna_struct_CreatePyObject(&newptr);
} else {
ret = Py_None;
Py_INCREF(ret);
}
break;
}
case PROP_COLLECTION:
{
ListBase *lb= (ListBase*)data;
CollectionPointerLink *link;
PyObject *linkptr;
ret = PyList_New(0);
for(link=lb->first; link; link=link->next) {
linkptr= pyrna_struct_CreatePyObject(&link->ptr);
PyList_Append(ret, linkptr);
Py_DECREF(linkptr);
}
break;
}
default:
PyErr_Format(PyExc_TypeError, "RNA Error: unknown type \"%d\" (pyrna_param_to_py)", type);
ret = NULL;
break;
}
}
return ret;
}
static PyObject * pyrna_func_call(PyObject * self, PyObject *args, PyObject *kw)
{
PointerRNA *self_ptr= &(((BPy_StructRNA *)PyTuple_GET_ITEM(self, 0))->ptr);
FunctionRNA *self_func= PyCObject_AsVoidPtr(PyTuple_GET_ITEM(self, 1));
PointerRNA funcptr;
ParameterList parms;
ParameterIterator iter;
PropertyRNA *pret, *parm;
PyObject *ret, *item;
int i, args_len, parms_len, flag, err= 0, kw_tot= 0, kw_arg;
const char *parm_id;
void *retdata= NULL;
/* Should never happen but it does in rare cases */
if(self_ptr==NULL) {
PyErr_SetString(PyExc_RuntimeError, "rna functions internal rna pointer is NULL, this is a bug. aborting");
return NULL;
}
if(self_func==NULL) {
PyErr_Format(PyExc_RuntimeError, "%.200s.<unknown>(): rna function internal function is NULL, this is a bug. aborting", RNA_struct_identifier(self_ptr->type));
return NULL;
}
/* setup */
RNA_pointer_create(NULL, &RNA_Function, self_func, &funcptr);
pret= RNA_function_return(self_func);
args_len= PyTuple_GET_SIZE(args);
RNA_parameter_list_create(&parms, self_ptr, self_func);
RNA_parameter_list_begin(&parms, &iter);
parms_len = RNA_parameter_list_size(&parms);
if(args_len + (kw ? PyDict_Size(kw):0) > parms_len) {
PyErr_Format(PyExc_TypeError, "%.200s.%.200s(): takes at most %d arguments, got %d", RNA_struct_identifier(self_ptr->type), RNA_function_identifier(self_func), parms_len, args_len);
err= -1;
}
/* parse function parameters */
for (i= 0; iter.valid && err==0; RNA_parameter_list_next(&iter)) {
parm= iter.parm;
if (parm==pret) {
retdata= iter.data;
continue;
}
parm_id= RNA_property_identifier(parm);
flag= RNA_property_flag(parm);
item= NULL;
if ((i < args_len) && (flag & PROP_REQUIRED)) {
item= PyTuple_GET_ITEM(args, i);
i++;
kw_arg= FALSE;
}
else if (kw != NULL) {
item= PyDict_GetItemString(kw, parm_id); /* borrow ref */
if(item)
kw_tot++; /* make sure invalid keywords are not given */
kw_arg= TRUE;
}
if (item==NULL) {
if(flag & PROP_REQUIRED) {
PyErr_Format(PyExc_TypeError, "%.200s.%.200s(): required parameter \"%.200s\" not specified", RNA_struct_identifier(self_ptr->type), RNA_function_identifier(self_func), parm_id);
err= -1;
break;
}
else /* PyDict_GetItemString wont raise an error */
continue;
}
err= pyrna_py_to_prop(&funcptr, parm, iter.data, item, "");
if(err!=0) {
/* the error generated isnt that useful, so generate it again with a useful prefix
* could also write a function to prepend to error messages */
char error_prefix[512];
PyErr_Clear(); /* re-raise */
if(kw_arg==TRUE)
snprintf(error_prefix, sizeof(error_prefix), "%s.%s(): error with keyword argument \"%s\" - ", RNA_struct_identifier(self_ptr->type), RNA_function_identifier(self_func), parm_id);
else
snprintf(error_prefix, sizeof(error_prefix), "%s.%s(): error with argument %d, \"%s\" - ", RNA_struct_identifier(self_ptr->type), RNA_function_identifier(self_func), i, parm_id);
pyrna_py_to_prop(&funcptr, parm, iter.data, item, error_prefix);
break;
}
}
/* Check if we gave args that dont exist in the function
* printing the error is slow but it should only happen when developing.
* the if below is quick, checking if it passed less keyword args then we gave */
if(kw && (PyDict_Size(kw) > kw_tot)) {
PyObject *key, *value;
Py_ssize_t pos = 0;
DynStr *bad_args= BLI_dynstr_new();
DynStr *good_args= BLI_dynstr_new();
char *arg_name, *bad_args_str, *good_args_str;
int found= FALSE, first= TRUE;
while (PyDict_Next(kw, &pos, &key, &value)) {
arg_name= _PyUnicode_AsString(key);
found= FALSE;
if(arg_name==NULL) { /* unlikely the argname is not a string but ignore if it is*/
PyErr_Clear();
}
else {
/* Search for arg_name */
RNA_parameter_list_begin(&parms, &iter);
for(; iter.valid; RNA_parameter_list_next(&iter)) {
parm= iter.parm;
if (strcmp(arg_name, RNA_property_identifier(parm))==0) {
found= TRUE;
break;
}
}
RNA_parameter_list_end(&iter);
if(found==FALSE) {
BLI_dynstr_appendf(bad_args, first ? "%s" : ", %s", arg_name);
first= FALSE;
}
}
}
/* list good args */
first= TRUE;
RNA_parameter_list_begin(&parms, &iter);
for(; iter.valid; RNA_parameter_list_next(&iter)) {
parm= iter.parm;
BLI_dynstr_appendf(good_args, first ? "%s" : ", %s", RNA_property_identifier(parm));
first= FALSE;
}
RNA_parameter_list_end(&iter);
bad_args_str= BLI_dynstr_get_cstring(bad_args);
good_args_str= BLI_dynstr_get_cstring(good_args);
PyErr_Format(PyExc_TypeError, "%.200s.%.200s(): was called with invalid keyword arguments(s) (%s), expected (%s)", RNA_struct_identifier(self_ptr->type), RNA_function_identifier(self_func), bad_args_str, good_args_str);
BLI_dynstr_free(bad_args);
BLI_dynstr_free(good_args);
MEM_freeN(bad_args_str);
MEM_freeN(good_args_str);
err= -1;
}
ret= NULL;
if (err==0) {
/* call function */
ReportList reports;
bContext *C= BPy_GetContext();
BKE_reports_init(&reports, RPT_STORE);
RNA_function_call(C, &reports, self_ptr, self_func, &parms);
err= (BPy_reports_to_error(&reports))? -1: 0;
BKE_reports_clear(&reports);
/* return value */
if(err==0) {
if(pret) {
ret= pyrna_param_to_py(&funcptr, pret, retdata);
/* possible there is an error in conversion */
if(ret==NULL)
err= -1;
}
}
}
/* cleanup */
RNA_parameter_list_end(&iter);
RNA_parameter_list_free(&parms);
if (ret)
return ret;
if (err==-1)
return NULL;
Py_RETURN_NONE;
}
/*-----------------------BPy_StructRNA method def------------------------------*/
PyTypeObject pyrna_struct_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"StructRNA", /* tp_name */
sizeof( BPy_StructRNA ), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
( destructor ) pyrna_struct_dealloc,/* tp_dealloc */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
NULL, /* tp_compare */ /* DEPRECATED in python 3.0! */
( reprfunc ) pyrna_struct_repr, /* tp_repr */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
NULL, /* PySequenceMethods *tp_as_sequence; */
NULL, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
( hashfunc )pyrna_struct_hash, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
( getattrofunc ) pyrna_struct_getattro, /* getattrofunc tp_getattro; */
( setattrofunc ) pyrna_struct_setattro, /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
NULL, /* traverseproc tp_traverse; */
/* delete references to contained objects */
NULL, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
(richcmpfunc)pyrna_struct_richcmp, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
NULL, /* getiterfunc tp_iter; */
NULL, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
pyrna_struct_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
NULL, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
NULL, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
pyrna_struct_new, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};
/*-----------------------BPy_PropertyRNA method def------------------------------*/
PyTypeObject pyrna_prop_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"PropertyRNA", /* tp_name */
sizeof( BPy_PropertyRNA ), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
NULL, /* tp_dealloc */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
NULL, /* tp_compare */ /* DEPRECATED in python 3.0! */
( reprfunc ) pyrna_prop_repr, /* tp_repr */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
&pyrna_prop_as_sequence, /* PySequenceMethods *tp_as_sequence; */
&pyrna_prop_as_mapping, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
NULL, /*PyObject_GenericGetAttr - MINGW Complains, assign later */ /* getattrofunc tp_getattro; */ /* will only use these if this is a subtype of a py class */
NULL, /*PyObject_GenericSetAttr - MINGW Complains, assign later */ /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
NULL, /* traverseproc tp_traverse; */
/* delete references to contained objects */
NULL, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
(richcmpfunc)pyrna_prop_richcmp, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
(getiterfunc)pyrna_prop_iter, /* getiterfunc tp_iter; */
NULL, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
pyrna_prop_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
NULL, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
NULL, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
pyrna_prop_new, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};
static void pyrna_subtype_set_rna(PyObject *newclass, StructRNA *srna)
{
PointerRNA ptr;
PyObject *item;
Py_INCREF(newclass);
if (RNA_struct_py_type_get(srna))
PyObSpit("RNA WAS SET - ", RNA_struct_py_type_get(srna));
Py_XDECREF(((PyObject *)RNA_struct_py_type_get(srna)));
RNA_struct_py_type_set(srna, (void *)newclass); /* Store for later use */
/* Not 100% needed but useful,
* having an instance within a type looks wrong however this instance IS an rna type */
RNA_pointer_create(NULL, &RNA_Struct, srna, &ptr);
item = pyrna_struct_CreatePyObject(&ptr);
PyDict_SetItemString(((PyTypeObject *)newclass)->tp_dict, "__rna__", item);
Py_DECREF(item);
/* done with rna instance */
}
static struct PyMethodDef pyrna_struct_subtype_methods[] = {
{"FloatProperty", (PyCFunction)BPy_FloatProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"IntProperty", (PyCFunction)BPy_IntProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"BoolProperty", (PyCFunction)BPy_BoolProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"StringProperty", (PyCFunction)BPy_StringProperty, METH_VARARGS|METH_KEYWORDS, ""},
{NULL, NULL, 0, NULL}
};
PyObject* pyrna_srna_Subtype(StructRNA *srna)
{
PyObject *newclass = NULL;
if (srna == NULL) {
newclass= NULL; /* Nothing to do */
} else if ((newclass= RNA_struct_py_type_get(srna))) {
Py_INCREF(newclass);
} else {
/* subclass equivelents
- class myClass(myBase):
some='value' # or ...
- myClass = type(name='myClass', bases=(myBase,), dict={'__module__':'bpy.types'})
*/
/* Assume RNA_struct_py_type_get(srna) was alredy checked */
StructRNA *base;
PyObject *py_base= NULL;
const char *idname= RNA_struct_identifier(srna);
const char *descr= RNA_struct_ui_description(srna);
if(!descr) descr= "(no docs)";
/* get the base type */
base= RNA_struct_base(srna);
if(base && base != srna) {
/*/printf("debug subtype %s %p\n", RNA_struct_identifier(srna), srna); */
py_base= pyrna_srna_Subtype(base);
}
if(py_base==NULL) {
py_base= (PyObject *)&pyrna_struct_Type;
Py_INCREF(py_base);
}
newclass = PyObject_CallFunction( (PyObject*)&PyType_Type, "s(N){ssss}", idname, py_base, "__module__","bpy.types", "__doc__",descr);
if (newclass) {
pyrna_subtype_set_rna(newclass, srna);
// PyObSpit("NewStructRNA Type: ", (PyObject *)newclass);
/* attach functions into the class
* so you can do... bpy.types.Scene.SomeFunction()
*/
{
PyMethodDef *ml;
for(ml= pyrna_struct_subtype_methods; ml->ml_name; ml++){
PyObject_SetAttrString(newclass, ml->ml_name, PyCFunction_New(ml, newclass));
}
}
}
else {
/* this should not happen */
PyErr_Print();
PyErr_Clear();
}
}
return newclass;
}
PyObject* pyrna_struct_Subtype(PointerRNA *ptr)
{
return pyrna_srna_Subtype((ptr->type == &RNA_Struct) ? ptr->data : ptr->type);
}
/*-----------------------CreatePyObject---------------------------------*/
PyObject *pyrna_struct_CreatePyObject( PointerRNA *ptr )
{
BPy_StructRNA *pyrna= NULL;
if (ptr->data==NULL && ptr->type==NULL) { /* Operator RNA has NULL data */
Py_RETURN_NONE;
}
else {
PyTypeObject *tp = (PyTypeObject *)pyrna_struct_Subtype(ptr);
if (tp) {
pyrna = (BPy_StructRNA *) tp->tp_alloc(tp, 0);
Py_DECREF(tp);
}
else {
fprintf(stderr, "Could not make type\n");
pyrna = ( BPy_StructRNA * ) PyObject_NEW( BPy_StructRNA, &pyrna_struct_Type );
}
}
if( !pyrna ) {
PyErr_SetString( PyExc_MemoryError, "couldn't create BPy_StructRNA object" );
return NULL;
}
pyrna->ptr= *ptr;
pyrna->freeptr= FALSE;
// PyObSpit("NewStructRNA: ", (PyObject *)pyrna);
return ( PyObject * ) pyrna;
}
PyObject *pyrna_prop_CreatePyObject( PointerRNA *ptr, PropertyRNA *prop )
{
BPy_PropertyRNA *pyrna;
pyrna = ( BPy_PropertyRNA * ) PyObject_NEW( BPy_PropertyRNA, &pyrna_prop_Type );
if( !pyrna ) {
PyErr_SetString( PyExc_MemoryError, "couldn't create BPy_rna object" );
return NULL;
}
pyrna->ptr = *ptr;
pyrna->prop = prop;
return ( PyObject * ) pyrna;
}
PyObject *BPY_rna_module( void )
{
PointerRNA ptr;
#ifdef USE_MATHUTILS // register mathutils callbacks, ok to run more then once.
mathutils_rna_array_cb_index= Mathutils_RegisterCallback(&mathutils_rna_array_cb);
mathutils_rna_matrix_cb_index= Mathutils_RegisterCallback(&mathutils_rna_matrix_cb);
#endif
/* This can't be set in the pytype struct because some compilers complain */
pyrna_prop_Type.tp_getattro = PyObject_GenericGetAttr;
pyrna_prop_Type.tp_setattro = PyObject_GenericSetAttr;
if( PyType_Ready( &pyrna_struct_Type ) < 0 )
return NULL;
if( PyType_Ready( &pyrna_prop_Type ) < 0 )
return NULL;
/* for now, return the base RNA type rather then a real module */
RNA_main_pointer_create(G.main, &ptr);
return pyrna_struct_CreatePyObject(&ptr);
}
#if 0
/* This is a way we can access docstrings for RNA types
* without having the datatypes in blender */
PyObject *BPY_rna_doc( void )
{
PointerRNA ptr;
/* for now, return the base RNA type rather then a real module */
RNA_blender_rna_pointer_create(&ptr);
return pyrna_struct_CreatePyObject(&ptr);
}
#endif
/* pyrna_basetype_* - BPy_BaseTypeRNA is just a BPy_PropertyRNA struct with a differnt type
* the self->ptr and self->prop are always set to the "structs" collection */
//---------------getattr--------------------------------------------
static PyObject *pyrna_basetype_getattro( BPy_BaseTypeRNA * self, PyObject *pyname )
{
PointerRNA newptr;
PyObject *ret;
ret = PyObject_GenericGetAttr((PyObject *)self, pyname);
if (ret) return ret;
else PyErr_Clear();
if (RNA_property_collection_lookup_string(&self->ptr, self->prop, _PyUnicode_AsString(pyname), &newptr)) {
ret= pyrna_struct_Subtype(&newptr);
if (ret==NULL) {
PyErr_Format(PyExc_SystemError, "bpy.types.%.200s subtype could not be generated, this is a bug!", _PyUnicode_AsString(pyname));
}
return ret;
}
else { /* Override the error */
PyErr_Format(PyExc_AttributeError, "bpy.types.%.200s RNA_Struct does not exist", _PyUnicode_AsString(pyname));
return NULL;
}
}
static PyObject *pyrna_basetype_dir(BPy_BaseTypeRNA *self);
static struct PyMethodDef pyrna_basetype_methods[] = {
{"__dir__", (PyCFunction)pyrna_basetype_dir, METH_NOARGS, ""},
{"register", (PyCFunction)pyrna_basetype_register, METH_VARARGS, ""},
{"unregister", (PyCFunction)pyrna_basetype_unregister, METH_VARARGS, ""},
{NULL, NULL, 0, NULL}
};
static PyObject *pyrna_basetype_dir(BPy_BaseTypeRNA *self)
{
PyObject *list, *name;
PyMethodDef *meth;
list= pyrna_prop_keys(self); /* like calling structs.keys(), avoids looping here */
for(meth=pyrna_basetype_methods; meth->ml_name; meth++) {
name = PyUnicode_FromString(meth->ml_name);
PyList_Append(list, name);
Py_DECREF(name);
}
return list;
}
PyTypeObject pyrna_basetype_Type = BLANK_PYTHON_TYPE;
PyObject *BPY_rna_types(void)
{
BPy_BaseTypeRNA *self;
if ((pyrna_basetype_Type.tp_flags & Py_TPFLAGS_READY)==0) {
pyrna_basetype_Type.tp_name = "RNA_Types";
pyrna_basetype_Type.tp_basicsize = sizeof( BPy_BaseTypeRNA );
pyrna_basetype_Type.tp_getattro = ( getattrofunc )pyrna_basetype_getattro;
pyrna_basetype_Type.tp_flags = Py_TPFLAGS_DEFAULT;
pyrna_basetype_Type.tp_methods = pyrna_basetype_methods;
if( PyType_Ready( &pyrna_basetype_Type ) < 0 )
return NULL;
}
self= (BPy_BaseTypeRNA *)PyObject_NEW( BPy_BaseTypeRNA, &pyrna_basetype_Type );
/* avoid doing this lookup for every getattr */
RNA_blender_rna_pointer_create(&self->ptr);
self->prop = RNA_struct_find_property(&self->ptr, "structs");
return (PyObject *)self;
}
static struct PyMethodDef props_methods[] = {
{"FloatProperty", (PyCFunction)BPy_FloatProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"IntProperty", (PyCFunction)BPy_IntProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"BoolProperty", (PyCFunction)BPy_BoolProperty, METH_VARARGS|METH_KEYWORDS, ""},
{"StringProperty", (PyCFunction)BPy_StringProperty, METH_VARARGS|METH_KEYWORDS, ""},
{NULL, NULL, 0, NULL}
};
static struct PyModuleDef props_module = {
PyModuleDef_HEAD_INIT,
"bpy.props",
"",
-1,/* multiple "initialization" just copies the module dict. */
props_methods,
NULL, NULL, NULL, NULL
};
PyObject *BPY_rna_props( void )
{
PyObject *submodule;
submodule= PyModule_Create(&props_module);
/* INCREF since its its assumed that all these functions return the
* module with a new ref like PyDict_New, since they are passed to
* PyModule_AddObject which steals a ref */
Py_INCREF(submodule);
return submodule;
}
/* Orphan functions, not sure where they should go */
/* get the srna for methods attached to types */
/* */
static StructRNA *srna_from_self(PyObject *self)
{
BPy_StructRNA *py_srna;
/* a bit sloppy but would cause a very confusing bug if
* an error happened to be set here */
PyErr_Clear();
if(self==NULL) {
return NULL;
}
else if (PyCObject_Check(self)) {
return PyCObject_AsVoidPtr(self);
}
else if (PyType_Check(self)==0) {
return NULL;
}
/* These cases above not errors, they just mean the type was not compatible
* After this any errors will be raised in the script */
py_srna= (BPy_StructRNA *)PyObject_GetAttrString(self, "__rna__");
if(py_srna==NULL) {
PyErr_SetString(PyExc_SystemError, "internal error, self had no __rna__ attribute, should never happen.");
return NULL;
}
if(!BPy_StructRNA_Check(py_srna)) {
PyErr_SetString(PyExc_SystemError, "internal error, self's __rna__ attribute isnt a StructRNA type, should never happen.");
return NULL;
}
if((py_srna->ptr.data && py_srna->ptr.type == &RNA_Struct) == 0) {
PyErr_SetString(PyExc_SystemError, "internal error, self's __rna__ attribute wasnt an RNA_Struct, should never happen.");
return NULL;
}
if(!RNA_struct_is_ID(py_srna->ptr.data)) {
PyErr_SetString(PyExc_TypeError, "only ID types support python defined properties");
return NULL;
}
return py_srna->ptr.data;
}
/* operators use this so it can store the args given but defer running
* it until the operator runs where these values are used to setup the
* default args for that operator instance */
static PyObject *bpy_prop_deferred_return(void *func, PyObject *kw)
{
PyObject *ret = PyTuple_New(2);
PyTuple_SET_ITEM(ret, 0, PyCObject_FromVoidPtr(func, NULL));
PyTuple_SET_ITEM(ret, 1, kw);
Py_INCREF(kw);
return ret;
}
/* Function that sets RNA, NOTE - self is NULL when called from python, but being abused from C so we can pass the srna allong
* This isnt incorrect since its a python object - but be careful */
PyObject *BPy_FloatProperty(PyObject *self, PyObject *args, PyObject *kw)
{
static char *kwlist[] = {"attr", "name", "description", "min", "max", "soft_min", "soft_max", "default", NULL};
char *id, *name="", *description="";
float min=FLT_MIN, max=FLT_MAX, soft_min=FLT_MIN, soft_max=FLT_MAX, def=0.0f;
PropertyRNA *prop;
StructRNA *srna;
if (!PyArg_ParseTupleAndKeywords(args, kw, "s|ssfffff:FloatProperty", kwlist, &id, &name, &description, &min, &max, &soft_min, &soft_max, &def))
return NULL;
if (PyTuple_Size(args) > 0) {
PyErr_SetString(PyExc_ValueError, "all args must be keywors"); // TODO - py3 can enforce this.
return NULL;
}
srna= srna_from_self(self);
if(srna==NULL && PyErr_Occurred()) {
return NULL; /* self's type was compatible but error getting the srna */
}
else if(srna) {
prop= RNA_def_float(srna, id, def, min, max, name, description, soft_min, soft_max);
RNA_def_property_duplicate_pointers(prop);
Py_RETURN_NONE;
}
else { /* operators defer running this function */
return bpy_prop_deferred_return((void *)BPy_FloatProperty, kw);
}
}
PyObject *BPy_IntProperty(PyObject *self, PyObject *args, PyObject *kw)
{
static char *kwlist[] = {"attr", "name", "description", "min", "max", "soft_min", "soft_max", "default", NULL};
char *id, *name="", *description="";
int min=INT_MIN, max=INT_MAX, soft_min=INT_MIN, soft_max=INT_MAX, def=0;
PropertyRNA *prop;
StructRNA *srna;
if (!PyArg_ParseTupleAndKeywords(args, kw, "s|ssiiiii:IntProperty", kwlist, &id, &name, &description, &min, &max, &soft_min, &soft_max, &def))
return NULL;
if (PyTuple_Size(args) > 0) {
PyErr_SetString(PyExc_ValueError, "all args must be keywors"); // TODO - py3 can enforce this.
return NULL;
}
srna= srna_from_self(self);
if(srna==NULL && PyErr_Occurred()) {
return NULL; /* self's type was compatible but error getting the srna */
}
else if(srna) {
prop= RNA_def_int(srna, id, def, min, max, name, description, soft_min, soft_max);
RNA_def_property_duplicate_pointers(prop);
Py_RETURN_NONE;
}
else { /* operators defer running this function */
return bpy_prop_deferred_return((void *)BPy_IntProperty, kw);
}
}
PyObject *BPy_BoolProperty(PyObject *self, PyObject *args, PyObject *kw)
{
static char *kwlist[] = {"attr", "name", "description", "default", NULL};
char *id, *name="", *description="";
int def=0;
PropertyRNA *prop;
StructRNA *srna;
if (!PyArg_ParseTupleAndKeywords(args, kw, "s|ssi:BoolProperty", kwlist, &id, &name, &description, &def))
return NULL;
if (PyTuple_Size(args) > 0) {
PyErr_SetString(PyExc_ValueError, "all args must be keywors"); // TODO - py3 can enforce this.
return NULL;
}
srna= srna_from_self(self);
if(srna==NULL && PyErr_Occurred()) {
return NULL; /* self's type was compatible but error getting the srna */
}
else if(srna) {
prop= RNA_def_boolean(srna, id, def, name, description);
RNA_def_property_duplicate_pointers(prop);
Py_RETURN_NONE;
}
else { /* operators defer running this function */
return bpy_prop_deferred_return((void *)BPy_BoolProperty, kw);
}
}
PyObject *BPy_StringProperty(PyObject *self, PyObject *args, PyObject *kw)
{
static char *kwlist[] = {"attr", "name", "description", "maxlen", "default", NULL};
char *id, *name="", *description="", *def="";
int maxlen=0;
PropertyRNA *prop;
StructRNA *srna;
if (!PyArg_ParseTupleAndKeywords(args, kw, "s|ssis:StringProperty", kwlist, &id, &name, &description, &maxlen, &def))
return NULL;
if (PyTuple_Size(args) > 0) {
PyErr_SetString(PyExc_ValueError, "all args must be keywors"); // TODO - py3 can enforce this.
return NULL;
}
srna= srna_from_self(self);
if(srna==NULL && PyErr_Occurred()) {
return NULL; /* self's type was compatible but error getting the srna */
}
else if(srna) {
prop= RNA_def_string(srna, id, def, maxlen, name, description);
RNA_def_property_duplicate_pointers(prop);
Py_RETURN_NONE;
}
else { /* operators defer running this function */
return bpy_prop_deferred_return((void *)BPy_StringProperty, kw);
}
}
/*-------------------- Type Registration ------------------------*/
static int rna_function_arg_count(FunctionRNA *func)
{
const ListBase *lb= RNA_function_defined_parameters(func);
PropertyRNA *parm;
Link *link;
int count= 1;
for(link=lb->first; link; link=link->next) {
parm= (PropertyRNA*)link;
if(!(RNA_property_flag(parm) & PROP_RETURN))
count++;
}
return count;
}
static int bpy_class_validate(PointerRNA *dummyptr, void *py_data, int *have_function)
{
const ListBase *lb;
Link *link;
FunctionRNA *func;
PropertyRNA *prop;
StructRNA *srna= dummyptr->type;
const char *class_type= RNA_struct_identifier(srna);
PyObject *py_class= (PyObject*)py_data;
PyObject *base_class= RNA_struct_py_type_get(srna);
PyObject *item, *fitem;
PyObject *py_arg_count;
int i, flag, arg_count, func_arg_count;
char identifier[128];
if (base_class) {
if (!PyObject_IsSubclass(py_class, base_class)) {
PyObject *name= PyObject_GetAttrString(base_class, "__name__");
PyErr_Format( PyExc_TypeError, "expected %.200s subclass of class \"%.200s\"", class_type, name ? _PyUnicode_AsString(name):"<UNKNOWN>");
Py_XDECREF(name);
return -1;
}
}
/* verify callback functions */
lb= RNA_struct_defined_functions(srna);
i= 0;
for(link=lb->first; link; link=link->next) {
func= (FunctionRNA*)link;
flag= RNA_function_flag(func);
if(!(flag & FUNC_REGISTER))
continue;
item = PyObject_GetAttrString(py_class, RNA_function_identifier(func));
have_function[i]= (item != NULL);
i++;
if (item==NULL) {
if ((flag & FUNC_REGISTER_OPTIONAL)==0) {
PyErr_Format( PyExc_AttributeError, "expected %.200s class to have an \"%.200s\" attribute", class_type, RNA_function_identifier(func));
return -1;
}
PyErr_Clear();
}
else {
Py_DECREF(item); /* no need to keep a ref, the class owns it */
if (PyMethod_Check(item))
fitem= PyMethod_Function(item); /* py 2.x */
else
fitem= item; /* py 3.x */
if (PyFunction_Check(fitem)==0) {
PyErr_Format( PyExc_TypeError, "expected %.200s class \"%.200s\" attribute to be a function", class_type, RNA_function_identifier(func));
return -1;
}
func_arg_count= rna_function_arg_count(func);
if (func_arg_count >= 0) { /* -1 if we dont care*/
py_arg_count = PyObject_GetAttrString(PyFunction_GET_CODE(fitem), "co_argcount");
arg_count = PyLong_AsSsize_t(py_arg_count);
Py_DECREF(py_arg_count);
if (arg_count != func_arg_count) {
PyErr_Format( PyExc_AttributeError, "expected %.200s class \"%.200s\" function to have %d args", class_type, RNA_function_identifier(func), func_arg_count);
return -1;
}
}
}
}
/* verify properties */
lb= RNA_struct_defined_properties(srna);
for(link=lb->first; link; link=link->next) {
prop= (PropertyRNA*)link;
flag= RNA_property_flag(prop);
if(!(flag & PROP_REGISTER))
continue;
BLI_snprintf(identifier, sizeof(identifier), "__%s__", RNA_property_identifier(prop));
item = PyObject_GetAttrString(py_class, identifier);
if (item==NULL) {
if(strcmp(identifier, "__idname__") == 0) {
item= PyObject_GetAttrString(py_class, "__name__");
if(item) {
Py_DECREF(item); /* no need to keep a ref, the class owns it */
if(pyrna_py_to_prop(dummyptr, prop, NULL, item, "validating class error:") != 0)
return -1;
}
}
if (item==NULL && (flag & PROP_REGISTER_OPTIONAL)==0) {
PyErr_Format( PyExc_AttributeError, "expected %.200s class to have an \"%.200s\" attribute", class_type, identifier);
return -1;
}
PyErr_Clear();
}
else {
Py_DECREF(item); /* no need to keep a ref, the class owns it */
if(pyrna_py_to_prop(dummyptr, prop, NULL, item, "validating class error:") != 0)
return -1;
}
}
return 0;
}
extern void BPY_update_modules( void ); //XXX temp solution
static int bpy_class_call(PointerRNA *ptr, FunctionRNA *func, ParameterList *parms)
{
PyObject *args;
PyObject *ret= NULL, *py_class, *py_class_instance, *item, *parmitem;
PropertyRNA *pret= NULL, *parm;
ParameterIterator iter;
PointerRNA funcptr;
void *retdata= NULL;
int err= 0, i, flag;
PyGILState_STATE gilstate;
bContext *C= BPy_GetContext(); // XXX - NEEDS FIXING, QUITE BAD.
bpy_context_set(C, &gilstate);
py_class= RNA_struct_py_type_get(ptr->type);
item = pyrna_struct_CreatePyObject(ptr);
if(item == NULL) {
py_class_instance = NULL;
}
else if(item == Py_None) { /* probably wont ever happen but possible */
Py_DECREF(item);
py_class_instance = NULL;
}
else {
args = PyTuple_New(1);
PyTuple_SET_ITEM(args, 0, item);
py_class_instance = PyObject_Call(py_class, args, NULL);
Py_DECREF(args);
}
if (py_class_instance) { /* Initializing the class worked, now run its invoke function */
item= PyObject_GetAttrString(py_class, RNA_function_identifier(func));
flag= RNA_function_flag(func);
if(item) {
pret= RNA_function_return(func);
RNA_pointer_create(NULL, &RNA_Function, func, &funcptr);
args = PyTuple_New(rna_function_arg_count(func));
PyTuple_SET_ITEM(args, 0, py_class_instance);
RNA_parameter_list_begin(parms, &iter);
/* parse function parameters */
for (i= 1; iter.valid; RNA_parameter_list_next(&iter)) {
parm= iter.parm;
if (parm==pret) {
retdata= iter.data;
continue;
}
parmitem= pyrna_param_to_py(&funcptr, parm, iter.data);
PyTuple_SET_ITEM(args, i, parmitem);
i++;
}
ret = PyObject_Call(item, args, NULL);
Py_DECREF(item);
Py_DECREF(args);
}
else {
Py_DECREF(py_class_instance);
PyErr_Format(PyExc_TypeError, "could not find function %.200s in %.200s to execute callback.", RNA_function_identifier(func), RNA_struct_identifier(ptr->type));
err= -1;
}
}
else {
PyErr_Format(PyExc_RuntimeError, "could not create instance of %.200s to call callback function %.200s.", RNA_struct_identifier(ptr->type), RNA_function_identifier(func));
err= -1;
}
if (ret == NULL) { /* covers py_class_instance failing too */
err= -1;
}
else {
if(retdata)
err= pyrna_py_to_prop(&funcptr, pret, retdata, ret, "calling class function:");
Py_DECREF(ret);
}
if(err != 0) {
PyErr_Print();
PyErr_Clear();
}
bpy_context_clear(C, &gilstate);
return err;
}
static void bpy_class_free(void *pyob_ptr)
{
if(G.f&G_DEBUG) {
if(((PyObject *)pyob_ptr)->ob_refcnt > 1)
PyObSpit("zombie class - ref should be 1", (PyObject *)pyob_ptr);
}
Py_DECREF((PyObject *)pyob_ptr);
}
PyObject *pyrna_basetype_register(PyObject *self, PyObject *args)
{
bContext *C= NULL;
PyObject *py_class, *item;
ReportList reports;
StructRegisterFunc reg;
BPy_StructRNA *py_srna;
StructRNA *srna;
if(!PyArg_ParseTuple(args, "O:register", &py_class))
return NULL;
if(!PyType_Check(py_class)) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no a Type object).");
return NULL;
}
/* check we got an __rna__ attribute */
item= PyObject_GetAttrString(py_class, "__rna__");
if(!item || !BPy_StructRNA_Check(item)) {
Py_XDECREF(item);
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no __rna__ property).");
return NULL;
}
/* check the __rna__ attribute has the right type */
Py_DECREF(item);
py_srna= (BPy_StructRNA*)item;
if(py_srna->ptr.type != &RNA_Struct) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (not a Struct).");
return NULL;
}
/* check that we have a register callback for this type */
reg= RNA_struct_register(py_srna->ptr.data);
if(!reg) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no register supported).");
return NULL;
}
/* get the context, so register callback can do necessary refreshes */
C= BPy_GetContext();
/* call the register callback */
BKE_reports_init(&reports, RPT_STORE);
srna= reg(C, &reports, py_class, bpy_class_validate, bpy_class_call, bpy_class_free);
if(!srna) {
BPy_reports_to_error(&reports);
BKE_reports_clear(&reports);
return NULL;
}
BKE_reports_clear(&reports);
pyrna_subtype_set_rna(py_class, srna); /* takes a ref to py_class */
Py_RETURN_NONE;
}
PyObject *pyrna_basetype_unregister(PyObject *self, PyObject *args)
{
bContext *C= NULL;
PyObject *py_class, *item;
BPy_StructRNA *py_srna;
StructUnregisterFunc unreg;
if(!PyArg_ParseTuple(args, "O:unregister", &py_class))
return NULL;
if(!PyType_Check(py_class)) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no a Type object).");
return NULL;
}
/* check we got an __rna__ attribute */
item= PyDict_GetItemString(((PyTypeObject*)py_class)->tp_dict, "__rna__"); /* borrow ref */
if(!item || !BPy_StructRNA_Check(item)) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no __rna__ property).");
return NULL;
}
/* check the __rna__ attribute has the right type */
py_srna= (BPy_StructRNA*)item;
if(py_srna->ptr.type != &RNA_Struct) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (not a Struct).");
return NULL;
}
/* check that we have a unregister callback for this type */
unreg= RNA_struct_unregister(py_srna->ptr.data);
if(!unreg) {
PyErr_SetString(PyExc_AttributeError, "expected a Type subclassed from a registerable rna type (no unregister supported).");
return NULL;
}
/* get the context, so register callback can do necessary refreshes */
C= BPy_GetContext();
/* call unregister */
unreg(C, py_srna->ptr.data);
/* remove reference to old type */
Py_DECREF(py_class);
Py_RETURN_NONE;
}
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