'users of ID' py API.

This mainly adds bpy.data.user_map() method, which goes over the whole Main database
to build a mapping (dict) {ID: {users_of_that_ID}}.

Very handy to check and debug ID usages, but could also be really valuable for py addons
creating temporary scenes, or some exporters, etc.

Note: current code in master's libquery misses some IDs (and reports some it should not,
like nodetrees), this is fixed in id-remap but still needs serious review before going to master.
This basically means that current bpy.data.user_map() **will not** report a complete and exhaustive
state of dependencies between IDs. Should work OK in most cases though.

Original work/idea comes from id-remap branch, was heavily reworked by @campbellbarton
and myself for master.

Reviewers: campbellbarton, sergey

Differential Revision: https://developer.blender.org/D1678

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/python/intern/bpy_rna.h b/source/blender/python/intern/bpy_rna.h
index f546c2955e5..c5d4a346f56 100644
--- a/source/blender/python/intern/bpy_rna.h
+++ b/source/blender/python/intern/bpy_rna.h
@@ -184,6 +184,11 @@ bool      pyrna_id_FromPyObject(PyObject *obj, struct ID **id);
 int pyrna_pydict_to_props(PointerRNA *ptr, PyObject *kw, int all_args, const char *error_prefix);
 PyObject *pyrna_prop_to_py(PointerRNA *ptr, PropertyRNA *prop);
 
+unsigned int *pyrna_set_to_enum_bitmap(
+        struct EnumPropertyItem *items, PyObject *value,
+        int type_size, bool type_convert_sign,
+        int bitmap_size,
+        const char *error_prefix);
 PyObject *pyrna_enum_bitfield_to_py(struct EnumPropertyItem *items, int value);
 int pyrna_set_to_enum_bitfield(EnumPropertyItem *items, PyObject *value, int *r_value, const char *error_prefix);