Cleanup: Rename original curve object type enum

This commit renames enums related the "Curve" object type and ID type
to add `_LEGACY` to the end. The idea is to make our aspirations clearer
in the code and to avoid ambiguities between `CURVE` and `CURVES`.

Ref T95355

To summarize for the record, the plans are:
- In the short/medium term, replace the `Curve` object data type with
 `Curves`
- In the longer term (no immediate plans), use a proper data block for
  3D text and surfaces.

Differential Revision: https://developer.blender.org/D14114

1 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/blenkernel/intern/displist.cc b/source/blender/blenkernel/intern/displist.cc
index 793af80ec74..5c761e94bb9 100644
--- a/source/blender/blenkernel/intern/displist.cc
+++ b/source/blender/blenkernel/intern/displist.cc
@@ -590,7 +590,7 @@ static float displist_calc_taper(Depsgraph *depsgraph,
                                  Object *taperobj,
                                  float fac)
 {
-  if (taperobj == nullptr || taperobj->type != OB_CURVE) {
+  if (taperobj == nullptr || taperobj->type != OB_CURVES_LEGACY) {
     return 1.0;
   }
 
@@ -1263,7 +1263,7 @@ static GeometrySet evaluate_curve_type_object(Depsgraph *depsgraph,
                                               const bool for_render,
                                               ListBase *r_dispbase)
 {
-  BLI_assert(ELEM(ob->type, OB_CURVE, OB_FONT));
+  BLI_assert(ELEM(ob->type, OB_CURVES_LEGACY, OB_FONT));
   const Curve *cu = (const Curve *)ob->data;
 
   ListBase *deformed_nurbs = &ob->runtime.curve_cache->deformed_nurbs;
@@ -1473,7 +1473,7 @@ void BKE_displist_make_curveTypes(Depsgraph *depsgraph,
                                   Object *ob,
                                   const bool for_render)
 {
-  BLI_assert(ELEM(ob->type, OB_SURF, OB_CURVE, OB_FONT));
+  BLI_assert(ELEM(ob->type, OB_SURF, OB_CURVES_LEGACY, OB_FONT));
   Curve &cow_curve = *(Curve *)ob->data;
 
   BKE_object_free_derived_caches(ob);