Armature Edit Mode: improve box/lasso select

Mostly rewrite logic which now matches (de)select picking,
share between both operators.

- Support all selection operations (eSelectOp), fixes T59255.

- Add function that selects using 'BONESEL_*' flags & eSelectOp.
  This avoids lasso & box select having to handle selection flushing.

- Fix strange behavior with lasso where selecting a bone in a chain
  would only select the tip (from 2.7x).

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_armature.h b/source/blender/editors/include/ED_armature.h
index 3131e5221d8..3306fa09f12 100644
--- a/source/blender/editors/include/ED_armature.h
+++ b/source/blender/editors/include/ED_armature.h
@@ -159,6 +159,10 @@ bool ED_armature_pose_select_pick_with_buffer(
         bool extend, bool deselect, bool toggle, bool do_nearest);
 bool ED_armature_edit_select_pick(
         struct bContext *C, const int mval[2], bool extend, bool deselect, bool toggle);
+
+bool ED_armature_edit_select_op_from_tagged(
+        struct bArmature *arm, const int sel_op);
+
 int join_armature_exec(struct bContext *C, struct wmOperator *op);
 float ED_armature_ebone_roll_to_vector(const EditBone *bone, const float new_up_axis[3], const bool axis_only);
 EditBone *ED_armature_ebone_find_name(const struct ListBase *edbo, const char *name);