RNA ID: add accessors to original ID, and a boolean stating whether it is evaluated or original data-block.

Since RNA depagraph API mostly returns evaluated data, it is mandatory
to have access to original datablocks now...

1 files changed, 28 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_ID.c b/source/blender/makesrna/intern/rna_ID.c
index 0a294bfaab9..cc1c1bffff2 100644
--- a/source/blender/makesrna/intern/rna_ID.c
+++ b/source/blender/makesrna/intern/rna_ID.c
@@ -105,6 +105,7 @@ const EnumPropertyItem rna_enum_id_type_items[] = {
 
 #include "DEG_depsgraph.h"
 #include "DEG_depsgraph_build.h"
+#include "DEG_depsgraph_query.h"
 
 #include "WM_api.h"
 
@@ -167,6 +168,20 @@ static int rna_ID_name_editable(PointerRNA *ptr, const char **UNUSED(r_info))
 	return PROP_EDITABLE;
 }
 
+static int rna_ID_is_evaluated_get(PointerRNA *ptr)
+{
+	ID *id = (ID *)ptr->data;
+
+	return (DEG_get_original_id(id) != id);
+}
+
+static PointerRNA rna_ID_original_get(PointerRNA *ptr)
+{
+	ID *id = (ID *)ptr->data;
+
+	return rna_pointer_inherit_refine(ptr, &RNA_ID, DEG_get_original_id(id));
+}
+
 short RNA_type_to_ID_code(const StructRNA *type)
 {
 	const StructRNA *base_type = RNA_struct_base_child_of(type, &RNA_ID);
@@ -1137,6 +1152,19 @@ static void rna_def_ID(BlenderRNA *brna)
 	RNA_def_property_update(prop, NC_ID | NA_RENAME, NULL);
 	RNA_def_struct_name_property(srna, prop);
 
+	prop = RNA_def_property(srna, "is_evaluated", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_ui_text(prop, "Is Evaluated",
+	                         "Whether this ID is runtime-only, evaluated data-block, or actual data from .blend file");
+	RNA_def_property_boolean_funcs(prop, "rna_ID_is_evaluated_get", NULL);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+
+	prop = RNA_def_property(srna, "original", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "ID");
+	RNA_def_property_ui_text(prop, "Original ID",
+	                         "Actual data-block from .blend file (Main database) that generated that evaluated one");
+	RNA_def_property_pointer_funcs(prop, "rna_ID_original_get", NULL, NULL, NULL);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE | PROP_PTR_NO_OWNERSHIP);
+
 	prop = RNA_def_property(srna, "users", PROP_INT, PROP_UNSIGNED);
 	RNA_def_property_int_sdna(prop, NULL, "us");
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);