1 files changed, 58 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/geometry_component_edit_data.cc b/source/blender/blenkernel/intern/geometry_component_edit_data.cc
new file mode 100644
index 00000000000..2c00de3254f
--- /dev/null
+++ b/source/blender/blenkernel/intern/geometry_component_edit_data.cc
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "BKE_curves.hh"
+#include "BKE_geometry_set.hh"
+
+using namespace blender;
+using namespace blender::bke;
+
+GeometryComponentEditData::GeometryComponentEditData() : GeometryComponent(GEO_COMPONENT_TYPE_EDIT)
+{
+}
+
+GeometryComponent *GeometryComponentEditData::copy() const
+{
+  GeometryComponentEditData *new_component = new GeometryComponentEditData();
+  if (curves_edit_hints_) {
+    new_component->curves_edit_hints_ = std::make_unique<CurvesEditHints>(*curves_edit_hints_);
+  }
+  return new_component;
+}
+
+bool GeometryComponentEditData::owns_direct_data() const
+{
+  return true;
+}
+
+void GeometryComponentEditData::ensure_owns_direct_data()
+{
+  /* Nothing to do. */
+}
+
+void GeometryComponentEditData::remember_deformed_curve_positions_if_necessary(
+    GeometrySet &geometry)
+{
+  /* This component should be created at the start of object evaluation if it's necessary. */
+  if (!geometry.has<GeometryComponentEditData>()) {
+    return;
+  }
+  GeometryComponentEditData &edit_component =
+      geometry.get_component_for_write<GeometryComponentEditData>();
+  if (!edit_component.curves_edit_hints_) {
+    return;
+  }
+  if (edit_component.curves_edit_hints_->positions.has_value()) {
+    return;
+  }
+  const Curves *curves_id = geometry.get_curves_for_read();
+  if (curves_id == nullptr) {
+    return;
+  }
+  const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
+  const int points_num = curves.points_num();
+  if (points_num != edit_component.curves_edit_hints_->curves_id_orig.geometry.point_num) {
+    return;
+  }
+  edit_component.curves_edit_hints_->positions.emplace(points_num);
+  edit_component.curves_edit_hints_->positions->as_mutable_span().copy_from(curves.positions());
+}