Manipulator: draw options for dial

- Option to start helper angle lines based on a vector
  instead of the initial mouse coords (useful for bisect & spin).
- Option to show 2x helper lines
  useful when dial is used to rotate an axis value.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/editors/mesh/editmesh_extrude.c b/source/blender/editors/mesh/editmesh_extrude.c
index e3c99fb4883..42683960407 100644
--- a/source/blender/editors/mesh/editmesh_extrude.c
+++ b/source/blender/editors/mesh/editmesh_extrude.c
@@ -879,6 +879,10 @@ static void manipulator_mesh_spin_update_from_op(ManipulatorSpinGroup *man)
 
 		ED_manipulator_grab3d_set_up_vector(man->translate_c, plane_no);
 		ED_manipulator_dial3d_set_up_vector(man->rotate_c, man->data.rotate_axis);
+
+		/* show the axis instead of mouse cursor */
+		ED_manipulator_dial3d_set_start_vector(man->rotate_c, true, plane_no);
+		ED_manipulator_dial3d_set_double_helper(man->rotate_c, true);
 	}
 }