Curves: Implement Handles for selected points only

When editing a complex curve is very annoying to have all handles at a time. Also, this is a requirement for the current GSoC Edit Grease Pencil using curves.
I have seen that this improvement can be used in any other area of blender, so I have decided to publish the option in the overlay panel..

Reviewed By: fclem, #user_interface, billreynish, Severin

Differential Revision: https://developer.blender.org/D7754

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index bf270f2c06f..40f73ccfe84 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -173,7 +173,8 @@ void BKE_nurbList_handles_recalculate(struct ListBase *editnurb,
                                       const char flag);
 
 void BKE_nurbList_handles_autocalc(ListBase *editnurb, int flag);
-void BKE_nurbList_flag_set(ListBase *editnurb, short flag);
+void BKE_nurbList_flag_set(ListBase *editnurb, short flag, bool set);
+bool BKE_nurbList_flag_set_from_flag(ListBase *editnurb, short from_flag, short flag);
 
 void BKE_nurb_free(struct Nurb *nu);
 struct Nurb *BKE_nurb_duplicate(const struct Nurb *nu);