Normal UI: for all ops needing autosmooth on, enable it if needed.

Now Normal menu operations and rotate normals (r n) do not need
manual enabling of autosmooth first.
See T64324 for discussion of Normal UI changes.

2 files changed, 11 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_editmesh.h b/source/blender/blenkernel/BKE_editmesh.h
index 91a558a9ee2..b7280c702d2 100644
--- a/source/blender/blenkernel/BKE_editmesh.h
+++ b/source/blender/blenkernel/BKE_editmesh.h
@@ -90,6 +90,7 @@ void BKE_editmesh_color_free(BMEditMesh *em);
 void BKE_editmesh_color_ensure(BMEditMesh *em, const char htype);
 float (*BKE_editmesh_vertexCos_get_orco(BMEditMesh *em, int *r_numVerts))[3];
 void BKE_editmesh_lnorspace_update(BMEditMesh *em);
+void BKE_editmesh_ensure_autosmooth(BMEditMesh *em);
 
 /* editderivedmesh.c */
 /* should really be defined in editmesh.c, but they use 'EditDerivedBMesh' */
diff --git a/source/blender/blenkernel/intern/editmesh.c b/source/blender/blenkernel/intern/editmesh.c
index 130f4ae88f1..264054266eb 100644
--- a/source/blender/blenkernel/intern/editmesh.c
+++ b/source/blender/blenkernel/intern/editmesh.c
@@ -248,3 +248,13 @@ void BKE_editmesh_lnorspace_update(BMEditMesh *em)
 
   BM_lnorspace_update(bm);
 }
+
+/* If autosmooth not already set, set it */
+void BKE_editmesh_ensure_autosmooth(BMEditMesh *em)
+{
+  Mesh *me = em->ob->data;
+  if (!(me->flag & ME_AUTOSMOOTH)) {
+    me->flag |= ME_AUTOSMOOTH;
+    BKE_editmesh_lnorspace_update (em);
+  }
+}