#5945 Add flag to NoteColumn using Axis_group_interface.

[Han-Wen Nienhuys]

The NoteColumn is an axis-group, for both X and Y axes.

https://codereview.appspot.com/555770044

[Anonymous]

Fails make

...
Making lily/out/tuplet-iterator.o < cc
Making lily/out/figured-bass-engraver.o < cc
Making lily/out/paper-def.o < cc
Making lily/out/performer-group.o < cc
Making lily/out/rhythmic-column-engraver.o < cc
/home/james/lilypond-git/lily/figured-bass-engraver.cc: In member function 'void Figured_bass_engraver::process_music()':
/home/james/lilypond-git/lily/figured-bass-engraver.cc:376:44: warning: conversion to 'std::vector<int>::value_type {aka int}' from 'vsize {aka long unsigned int}' may alter its value [-Wconversion]
             junk_continuations.push_back (i);
                                            ^
Making lily/out/volta-engraver.o < cc
/home/james/lilypond-git/lily/rhythmic-column-engraver.cc: In member function 'void Rhythmic_column_engraver::process_acknowledged()':
/home/james/lilypond-git/lily/rhythmic-column-engraver.cc:108:11: error: 'Axis_group_interface' has not been declared
           Axis_group_interface::add_grob (note_column_, flag_);
           ^~~~~~~~~~~~~~~~~~~~
/home/james/lilypond-git/build/../stepmake/stepmake/c++-rules.make:4: recipe for target 'out/rhythmic-column-engraver.o' failed
make[1]: *** [out/rhythmic-column-engraver.o] Error 1
make[1]: *** Waiting for unfinished jobs....
/home/james/lilypond-git/build/../stepmake/stepmake/generic-targets.make:6: recipe for target 'all' failed
make: *** [all] Error 2

[Han-Wen Nienhuys]

make it compile. (sorry!)

https://codereview.appspot.com/555770044

[Anonymous]

Passes make, make check and a full make doc.

[Anonymous]

Patch on countdown for May 2nd

[Anonymous]

Patch counted down - please push

[Jonas Hahnfeld]

commit 0b45d764dcbc704713c8a32186561305e58d5659
Author:     Han-Wen Nienhuys <hanwen@lilypond.org>
AuthorDate: Mon Apr 27 10:31:56 2020 +0200
Commit:     Han-Wen Nienhuys <hanwen@lilypond.org>
CommitDate: Sat May 2 09:25:34 2020 +0200

    Add flag to NoteColumn using Axis_group_interface.

    The NoteColumn is an axis-group, for both X and Y axes.