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PyAPI: add read-only 'is_valid' attribute to mathutils types

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There was no convenient way to check if the owner
of a mathutils type was valid.

Added to support issue reported in T91111.
This commit is contained in:
Campbell Barton
2021-09-03 21:18:03 +10:00
parent f530b43550
commit 0950cfd9d5
7 changed files with 46 additions and 0 deletions
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16
source/blender/python/mathutils/mathutils.c
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@@ -599,6 +599,15 @@ uchar Mathutils_RegisterCallback(Mathutils_Callback *cb)
return i;
}
int _BaseMathObject_CheckCallback(BaseMathObject *self)
{
Mathutils_Callback *cb = mathutils_callbacks[self->cb_type];
if (LIKELY(cb->check(self) != -1)) {
return 0;
}
return -1;
}
/* use macros to check for NULL */
int _BaseMathObject_ReadCallback(BaseMathObject *self)
{
@@ -687,6 +696,13 @@ PyObject *BaseMathObject_is_frozen_get(BaseMathObject *self, void *UNUSED(closur
return PyBool_FromLong((self->flag & BASE_MATH_FLAG_IS_FROZEN) != 0);
}
char BaseMathObject_is_valid_doc[] =
"True when the owner of this data is valid.\n\n:type: boolean";
PyObject *BaseMathObject_is_valid_get(BaseMathObject *self, void *UNUSED(closure))
{
return PyBool_FromLong(BaseMath_CheckCallback(self) == 0);
}
char BaseMathObject_freeze_doc[] =
".. function:: freeze()\n"
"\n"