patch [#36336] Split operator for curves and surfaces

by Kevin Mackay (yakca)

The operator follows roughly the same behaviour as the split operator for a mesh (Ykey).

2 files changed, 19 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index f3b3810b587..609b7e4ae4b 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -150,6 +150,7 @@ void BKE_nurb_bezt_calc_normal(struct Nurb *nu, struct BezTriple *bezt, float r_
 void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_plane[3]);
 
 void BKE_nurb_handle_calc(struct BezTriple *bezt, struct BezTriple *prev,  struct BezTriple *next, int mode);
+void BKE_nurb_handle_calc_simple(struct Nurb *nu, struct BezTriple *bezt);
 
 void BKE_nurb_handles_calc(struct Nurb *nu);
 void BKE_nurb_handles_autocalc(struct Nurb *nu, int flag);
diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c
index e41b1999198..dd5932af895 100644
--- a/source/blender/blenkernel/intern/curve.c
+++ b/source/blender/blenkernel/intern/curve.c
@@ -3084,6 +3084,24 @@ void BKE_nurb_handles_calc(Nurb *nu) /* first, if needed, set handle flags */
 	calchandlesNurb_intern(nu, FALSE);
 }
 
+/* similar to BKE_nurb_handle_calc but for curves and
+ * figures out the previous and next for us */
+void BKE_nurb_handle_calc_simple(Nurb *nu, BezTriple *bezt)
+{
+	int index = (int)(bezt - nu->bezt);
+	BezTriple *prev, *next;
+
+	BLI_assert(ARRAY_HAS_ITEM(bezt, nu->bezt, nu->pntsu));
+
+	if (index == 0) {
+		prev = (nu->flag & CU_NURB_CYCLIC) ? &nu->bezt[nu->pntsu - 1] : NULL;
+	}
+	if (index == nu->pntsu - 1) {
+		next = (nu->flag & CU_NURB_CYCLIC) ? &nu->bezt[0] : NULL;
+	}
+
+	BKE_nurb_handle_calc(bezt, prev, next, 0);
+}
 
 void BKE_nurb_handles_test(Nurb *nu)
 {