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, 7 insertions, 7 deletions

diff --git a/source/blender/editors/object/object_relations.c b/source/blender/editors/object/object_relations.c
index 8834941d083..1204a57d59f 100644
--- a/source/blender/editors/object/object_relations.c
+++ b/source/blender/editors/object/object_relations.c
@@ -169,7 +169,7 @@ static int vertex_parent_set_exec(bContext *C, wmOperator *op)
       }
     }
   }
-  else if (ELEM(obedit->type, OB_SURF, OB_CURVE)) {
+  else if (ELEM(obedit->type, OB_SURF, OB_CURVES_LEGACY)) {
     ListBase *editnurb = object_editcurve_get(obedit);
 
     for (Nurb *nu = editnurb->first; nu != NULL; nu = nu->next) {
@@ -341,7 +341,7 @@ EnumPropertyItem prop_clear_parent_types[] = {
 /* Helper for ED_object_parent_clear() - Remove deform-modifiers associated with parent */
 static void object_remove_parent_deform_modifiers(Object *ob, const Object *par)
 {
-  if (ELEM(par->type, OB_ARMATURE, OB_LATTICE, OB_CURVE)) {
+  if (ELEM(par->type, OB_ARMATURE, OB_LATTICE, OB_CURVES_LEGACY)) {
     ModifierData *md, *mdn;
 
     /* assume that we only need to remove the first instance of matching deform modifier here */
@@ -363,7 +363,7 @@ static void object_remove_parent_deform_modifiers(Object *ob, const Object *par)
           free = true;
         }
       }
-      else if ((md->type == eModifierType_Curve) && (par->type == OB_CURVE)) {
+      else if ((md->type == eModifierType_Curve) && (par->type == OB_CURVES_LEGACY)) {
         CurveModifierData *cmd = (CurveModifierData *)md;
         if (cmd->object == par) {
           free = true;
@@ -531,7 +531,7 @@ bool ED_object_parent_set(ReportList *reports,
   switch (partype) {
     case PAR_FOLLOW:
     case PAR_PATH_CONST: {
-      if (par->type != OB_CURVE) {
+      if (par->type != OB_CURVES_LEGACY) {
         return false;
       }
       Curve *cu = par->data;
@@ -626,7 +626,7 @@ bool ED_object_parent_set(ReportList *reports,
        */
       /* XXX currently this should only happen for meshes, curves, surfaces,
        * and lattices - this stuff isn't available for meta-balls yet. */
-      if (ELEM(ob->type, OB_MESH, OB_CURVE, OB_SURF, OB_FONT, OB_LATTICE)) {
+      if (ELEM(ob->type, OB_MESH, OB_CURVES_LEGACY, OB_SURF, OB_FONT, OB_LATTICE)) {
         ModifierData *md;
 
         switch (partype) {
@@ -968,7 +968,7 @@ static int parent_set_invoke_menu(bContext *C, wmOperatorType *ot)
     uiItemEnumO_ptr(layout, ot, NULL, 0, "type", PAR_BONE);
     uiItemEnumO_ptr(layout, ot, NULL, 0, "type", PAR_BONE_RELATIVE);
   }
-  else if (parent->type == OB_CURVE) {
+  else if (parent->type == OB_CURVES_LEGACY) {
     uiItemEnumO_ptr(layout, ot, NULL, 0, "type", PAR_CURVE);
     uiItemEnumO_ptr(layout, ot, NULL, 0, "type", PAR_FOLLOW);
     uiItemEnumO_ptr(layout, ot, NULL, 0, "type", PAR_PATH_CONST);
@@ -1820,7 +1820,7 @@ static void single_obdata_users(
                 ob->data,
                 BKE_id_copy_ex(bmain, ob->data, NULL, LIB_ID_COPY_DEFAULT | LIB_ID_COPY_ACTIONS));
             break;
-          case OB_CURVE:
+          case OB_CURVES_LEGACY:
           case OB_SURF:
           case OB_FONT:
             ob->data = cu = ID_NEW_SET(