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

4 files changed, 6 insertions, 6 deletions

diff --git a/source/blender/io/alembic/exporter/abc_hierarchy_iterator.cc b/source/blender/io/alembic/exporter/abc_hierarchy_iterator.cc
index 4723b89de08..d33adfdb4b9 100644
--- a/source/blender/io/alembic/exporter/abc_hierarchy_iterator.cc
+++ b/source/blender/io/alembic/exporter/abc_hierarchy_iterator.cc
@@ -190,7 +190,7 @@ ABCAbstractWriter *ABCHierarchyIterator::create_data_writer_for_object_type(
       return new ABCMeshWriter(writer_args);
     case OB_CAMERA:
       return new ABCCameraWriter(writer_args);
-    case OB_CURVE:
+    case OB_CURVES_LEGACY:
       if (params_.curves_as_mesh) {
         return new ABCCurveMeshWriter(writer_args);
       }
diff --git a/source/blender/io/alembic/exporter/abc_writer_nurbs.cc b/source/blender/io/alembic/exporter/abc_writer_nurbs.cc
index 5e307d59ed4..89ed7c5ce06 100644
--- a/source/blender/io/alembic/exporter/abc_writer_nurbs.cc
+++ b/source/blender/io/alembic/exporter/abc_writer_nurbs.cc
@@ -84,7 +84,7 @@ bool ABCNurbsWriter::check_is_animated(const HierarchyContext &context) const
 
 bool ABCNurbsWriter::is_supported(const HierarchyContext *context) const
 {
-  return ELEM(context->object->type, OB_SURF, OB_CURVE);
+  return ELEM(context->object->type, OB_SURF, OB_CURVES_LEGACY);
 }
 
 static void get_knots(std::vector<float> &knots, const int num_knots, float *nu_knots)
diff --git a/source/blender/io/alembic/intern/abc_reader_curves.cc b/source/blender/io/alembic/intern/abc_reader_curves.cc
index a6400dc6f6c..d8859acdf5f 100644
--- a/source/blender/io/alembic/intern/abc_reader_curves.cc
+++ b/source/blender/io/alembic/intern/abc_reader_curves.cc
@@ -66,7 +66,7 @@ bool AbcCurveReader::accepts_object_type(
     return false;
   }
 
-  if (ob->type != OB_CURVE) {
+  if (ob->type != OB_CURVES_LEGACY) {
     *err_str = "Object type mismatch, Alembic object path points to Curves.";
     return false;
   }
@@ -76,7 +76,7 @@ bool AbcCurveReader::accepts_object_type(
 
 void AbcCurveReader::readObjectData(Main *bmain, const Alembic::Abc::ISampleSelector &sample_sel)
 {
-  Curve *cu = BKE_curve_add(bmain, m_data_name.c_str(), OB_CURVE);
+  Curve *cu = BKE_curve_add(bmain, m_data_name.c_str(), OB_CURVES_LEGACY);
 
   cu->flag |= CU_3D;
   cu->actvert = CU_ACT_NONE;
@@ -91,7 +91,7 @@ void AbcCurveReader::readObjectData(Main *bmain, const Alembic::Abc::ISampleSele
     }
   }
 
-  m_object = BKE_object_add_only_object(bmain, OB_CURVE, m_object_name.c_str());
+  m_object = BKE_object_add_only_object(bmain, OB_CURVES_LEGACY, m_object_name.c_str());
   m_object->data = cu;
 
   read_curve_sample(cu, m_curves_schema, sample_sel);
diff --git a/source/blender/io/alembic/intern/abc_reader_nurbs.cc b/source/blender/io/alembic/intern/abc_reader_nurbs.cc
index b744106ff95..78f9c0a85b4 100644
--- a/source/blender/io/alembic/intern/abc_reader_nurbs.cc
+++ b/source/blender/io/alembic/intern/abc_reader_nurbs.cc
@@ -69,7 +69,7 @@ bool AbcNurbsReader::accepts_object_type(
     return false;
   }
 
-  if (ob->type != OB_CURVE) {
+  if (ob->type != OB_CURVES_LEGACY) {
     *err_str = "Object type mismatch, Alembic object path points to NURBS.";
     return false;
   }