2 ' separating-line-group-engraver.cc -- implement Separating_line_group_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "separating-group-spanner.hh"
11 #include "separation-item.hh"
12 #include "paper-column.hh"
13 #include "paper-def.hh"
14 #include "engraver.hh"
15 #include "axis-group-interface.hh"
17 class Separating_line_group_engraver : public Engraver
21 Item * musical_malt_p_;
23 Spanner * sep_span_p_;
25 virtual void acknowledge_grob (Grob_info);
26 virtual void initialize ();
27 virtual void finalize ();
28 virtual void stop_translation_timestep ();
30 Separating_line_group_engraver ();
31 VIRTUAL_COPY_CONS (Translator);
34 Separating_line_group_engraver::Separating_line_group_engraver ()
42 Separating_line_group_engraver::initialize ()
44 sep_span_p_ = new Spanner (get_property ("SeparatingGroupSpanner"));
46 announce_grob (sep_span_p_, 0);
47 sep_span_p_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
51 Separating_line_group_engraver::finalize ()
53 sep_span_p_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
54 typeset_grob (sep_span_p_);
59 Separating_line_group_engraver::acknowledge_grob (Grob_info i)
61 Item * it = dynamic_cast <Item *> (i.elem_l_);
64 if (it->parent_l (X_AXIS)
65 && it->parent_l (X_AXIS)->has_extent_callback_b
66 (Axis_group_interface::group_extent_callback_proc, X_AXIS))
70 bool ib =Item::breakable_b (it);
71 Item *&p_ref_ (ib ? break_malt_p_
77 (get_property ("SeparationItem"));
80 p_ref_->set_grob_property ("breakable", SCM_BOOL_T);
81 announce_grob (p_ref_, 0);
83 Separation_item::add_item (p_ref_,it);
87 Separating_line_group_engraver::stop_translation_timestep ()
91 Separating_group_spanner::add_spacing_unit (sep_span_p_, break_malt_p_);
93 typeset_grob (break_malt_p_);
99 Separating_group_spanner::add_spacing_unit (sep_span_p_, musical_malt_p_);
100 typeset_grob (musical_malt_p_);
108 ADD_THIS_TRANSLATOR (Separating_line_group_engraver);