added rna property "parent" so nested RNA structs can access their parent RNA struct

This is used for generating docs so a nested RNA struct such as MaterialRaytraceTransparency are listed under Material rather then in the global struct list)
These RNA structs are used for grouping properties and don't correspond to a C structure.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_internal_types.h b/source/blender/makesrna/intern/rna_internal_types.h
index 89b0503239b..45b122b2ae5 100644
--- a/source/blender/makesrna/intern/rna_internal_types.h
+++ b/source/blender/makesrna/intern/rna_internal_types.h
@@ -205,6 +205,8 @@ typedef struct CollectionPropertyRNA {
 	struct StructRNA *structtype;
 } CollectionPropertyRNA;
 
+
+/* changes to this struct require updating rna_generate_struct in makesrna.c */
 struct StructRNA {
 	struct StructRNA *next, *prev;
 
@@ -227,6 +229,12 @@ struct StructRNA {
 	/* struct this is derivedfrom */
 	struct StructRNA *from;
 
+	/* only use for nested structs, where both the parent and child access
+	 * the same C Struct but nesting is used for grouping properties.
+	 * The parent property is used so we know NULL checks are not needed,
+	 * and that this struct will never exist without its parent */
+	struct StructRNA *parent;
+
 	/* function to give the more specific type */
 	StructRefineFunc refine;