new rna api call: RNA_struct_idprops_unset(op->ptr, "someprop"), added to allow un-setting operator properties.

2 files changed, 19 insertions, 1 deletions

diff --git a/source/blender/makesrna/RNA_access.h b/source/blender/makesrna/RNA_access.h
index 53af242a0ac..5b42e01989e 100644
--- a/source/blender/makesrna/RNA_access.h
+++ b/source/blender/makesrna/RNA_access.h
@@ -620,7 +620,7 @@ void RNA_struct_blender_type_set(StructRNA *srna, void *blender_type);
 struct IDProperty *RNA_struct_idprops(PointerRNA *ptr, int create);
 int RNA_struct_idprops_check(StructRNA *srna);
 int RNA_struct_idprops_register_check(StructRNA *type);
-
+int RNA_struct_idprops_unset(PointerRNA *ptr, const char *identifier);
 
 PropertyRNA *RNA_struct_find_property(PointerRNA *ptr, const char *identifier);
 int RNA_struct_contains_property(PointerRNA *ptr, PropertyRNA *prop_test);
diff --git a/source/blender/makesrna/intern/rna_access.c b/source/blender/makesrna/intern/rna_access.c
index cd9b23da5d3..03622ec756f 100644
--- a/source/blender/makesrna/intern/rna_access.c
+++ b/source/blender/makesrna/intern/rna_access.c
@@ -521,6 +521,24 @@ int RNA_struct_idprops_register_check(StructRNA *type)
 	return (type->flag & STRUCT_NO_IDPROPERTIES) == 0;
 }
 
+/* remove an id-property */
+int RNA_struct_idprops_unset(PointerRNA *ptr, const char *identifier)
+{
+	IDProperty *group= RNA_struct_idprops(ptr, 0);
+
+	if(group) {
+		IDProperty *idp= IDP_GetPropertyFromGroup(group, identifier);
+		if(idp) {
+			IDP_RemFromGroup(group, idp);
+			IDP_FreeProperty(idp);
+			MEM_freeN(idp);
+
+			return 1;
+		}
+	}
+	return 0;
+}
+
 int RNA_struct_is_a(StructRNA *type, StructRNA *srna)
 {
 	StructRNA *base;