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blender-archive/source/blender/python/intern/bpy_util.c

164 lines
3.2 KiB
C

/**
* $Id$
*
* ***** 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_util.h"
#include "BLI_dynstr.h"
#include "MEM_guardedalloc.h"
#include "bpy_compat.h"
PyObject *BPY_flag_to_list(struct BPY_flag_def *flagdef, int flag)
{
PyObject *list = PyList_New(0);
PyObject *item;
BPY_flag_def *fd;
fd= flagdef;
while(fd->name) {
if (fd->flag & flag) {
item = PyUnicode_FromString(fd->name);
PyList_Append(list, item);
Py_DECREF(item);
}
fd++;
}
return list;
}
static char *bpy_flag_error_str(BPY_flag_def *flagdef)
{
BPY_flag_def *fd= flagdef;
DynStr *dynstr= BLI_dynstr_new();
char *cstring;
BLI_dynstr_append(dynstr, "Error converting a sequence of strings into a flag.\n\tExpected only these strings...\n\t");
while(fd->name) {
BLI_dynstr_appendf(dynstr, fd!=flagdef?", '%s'":"'%s'", fd->name);
fd++;
}
cstring = BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return cstring;
}
int BPY_flag_from_seq(BPY_flag_def *flagdef, PyObject *seq, int *flag)
{
int i, error_val= 0;
char *cstring;
PyObject *item;
BPY_flag_def *fd;
if (PySequence_Check(seq)) {
i= PySequence_Length(seq);
while(i--) {
item = PySequence_ITEM(seq, i);
cstring= _PyUnicode_AsString(item);
if(cstring) {
fd= flagdef;
while(fd->name) {
if (strcmp(cstring, fd->name) == 0)
(*flag) |= fd->flag;
fd++;
}
if (fd==NULL) { /* could not find a match */
error_val= 1;
}
} else {
error_val= 1;
}
Py_DECREF(item);
}
}
else {
error_val= 1;
}
if (error_val) {
char *buf = bpy_flag_error_str(flagdef);
PyErr_SetString(PyExc_AttributeError, buf);
MEM_freeN(buf);
return -1; /* error value */
}
return 0; /* ok */
}
/* Copied from pythons 3's Object.c */
#if PY_VERSION_HEX < 0x03000000
PyObject *
Py_CmpToRich(int op, int cmp)
{
PyObject *res;
int ok;
if (PyErr_Occurred())
return NULL;
switch (op) {
case Py_LT:
ok = cmp < 0;
break;
case Py_LE:
ok = cmp <= 0;
break;
case Py_EQ:
ok = cmp == 0;
break;
case Py_NE:
ok = cmp != 0;
break;
case Py_GT:
ok = cmp > 0;
break;
case Py_GE:
ok = cmp >= 0;
break;
default:
PyErr_BadArgument();
return NULL;
}
res = ok ? Py_True : Py_False;
Py_INCREF(res);
return res;
}
#endif
/* for debugging */
void PyObSpit(char *name, PyObject *var) {
fprintf(stderr, "<%s> : ", name);
if (var==NULL) {
fprintf(stderr, "<NIL>");
}
else {
PyObject_Print(var, stderr, 0);
}
fprintf(stderr, "\n");
}