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, 1 insertions, 1 deletions

diff --git a/source/blender/editors/transform/transform_gizmo_3d.c b/source/blender/editors/transform/transform_gizmo_3d.c
index ddeba206e4a..04be7048791 100644
--- a/source/blender/editors/transform/transform_gizmo_3d.c
+++ b/source/blender/editors/transform/transform_gizmo_3d.c
@@ -929,7 +929,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
                * if handles are hidden then only check the center points.
                * If the center knot is selected then only use this as the center point.
                */
-              if ((v3d->overlay.edit_flag & V3D_OVERLAY_EDIT_CU_HANDLES) == 0) {
+              if (v3d->overlay.handle_display == CURVE_HANDLE_NONE) {
                 if (bezt->f2 & SELECT) {
                   calc_tw_center_with_matrix(tbounds, bezt->vec[1], use_mat_local, mat_local);
                   totsel++;