3D View: move deselect all logic into an option

This removes `VIEW3D_OT_select_or_deselect_all`, adding a
deselect_all option to the `VIEW3D_OT_select` operator.

- Add utility functions to simplify de-selecting all.

- Return true from selection functions when they change the selection
  to avoid redundant updates.

- Use arrays of bases when passing objects between selection utility
  functions since some users require bases.

- Fix logical error in box selection that updated all objects after
  the first hit.

1 files changed, 8 insertions, 6 deletions

diff --git a/source/blender/editors/include/ED_curve.h b/source/blender/editors/include/ED_curve.h
index b585dc766d7..3e8821efbd0 100644
--- a/source/blender/editors/include/ED_curve.h
+++ b/source/blender/editors/include/ED_curve.h
@@ -25,6 +25,7 @@
 #define __ED_CURVE_H__
 
 struct BPoint;
+struct Base;
 struct BezTriple;
 struct Curve;
 struct EditNurb;
@@ -56,17 +57,18 @@ struct Nurb *ED_curve_add_nurbs_primitive(struct bContext *C, struct Object *obe
 
 bool    ED_curve_nurb_select_check(struct View3D *v3d, struct Nurb *nu);
 int     ED_curve_nurb_select_count(struct View3D *v3d, struct Nurb *nu);
-void    ED_curve_nurb_select_all(struct Nurb *nu);
-void    ED_curve_nurb_deselect_all(struct Nurb *nu);
+bool    ED_curve_nurb_select_all(const struct Nurb *nu);
+bool    ED_curve_nurb_deselect_all(const struct Nurb *nu);
 
 int     join_curve_exec(struct bContext *C, struct wmOperator *op);
 
 /* editcurve_select.c */
 bool ED_curve_select_check(struct View3D *v3d, struct EditNurb *editnurb);
-void ED_curve_deselect_all(struct EditNurb *editnurb);
-void ED_curve_deselect_all_multi(struct Object **objects, int objects_len);
-void ED_curve_select_all(struct EditNurb *editnurb);
-void ED_curve_select_swap(struct EditNurb *editnurb, bool hide_handles);
+bool ED_curve_deselect_all(struct EditNurb *editnurb);
+bool ED_curve_deselect_all_multi_ex(struct Base **bases, int bases_len);
+bool ED_curve_deselect_all_multi(struct bContext *C);
+bool ED_curve_select_all(struct EditNurb *editnurb);
+bool ED_curve_select_swap(struct EditNurb *editnurb, bool hide_handles);
 int ED_curve_select_count(struct View3D *v3d, struct EditNurb *editnurb);
 
 /* editcurve_undo.c */