2 separating-line-group-engraver.cc -- implement Separating_line_group_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2000 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"
16 class Separating_line_group_engraver
: public Engraver
20 Item
* nobreak_malt_p_
;
21 Separating_group_spanner
* sep_span_p_
;
23 virtual void acknowledge_element (Score_element_info
);
24 virtual void do_creation_processing ();
25 virtual void do_removal_processing ();
26 virtual void do_pre_move_processing ();
28 Separating_line_group_engraver ();
29 VIRTUAL_COPY_CONS (Translator
);
32 Separating_line_group_engraver::Separating_line_group_engraver ()
40 Separating_line_group_engraver::do_creation_processing ()
42 sep_span_p_
= new Separating_group_spanner (get_property ("basicSeparatingGroupSpannerProperties"));
43 announce_element (Score_element_info (sep_span_p_
, 0));
44 sep_span_p_
->set_bound (LEFT
, unsmob_element (get_property ("currentCommandColumn")));
48 Separating_line_group_engraver::do_removal_processing ()
50 sep_span_p_
->set_bound (RIGHT
, unsmob_element (get_property ("currentCommandColumn")));
51 typeset_element (sep_span_p_
);
56 Separating_line_group_engraver::acknowledge_element (Score_element_info i
)
58 Item
* it
= dynamic_cast <Item
*> (i
.elem_l_
);
59 if (it
&& !it
->parent_l (X_AXIS
))
61 bool ib
=it
->breakable_b ();
62 Item
*&p_ref_ (ib
? break_malt_p_
68 (get_property ("basicSeparationItemProperties"));
71 p_ref_
->set_elt_property ("breakable", SCM_BOOL_T
);
72 announce_element (Score_element_info (p_ref_
, 0));
74 Separation_item::add_item (p_ref_
,it
);
79 Separating_line_group_engraver::do_pre_move_processing ()
83 Separating_group_spanner::add_spacing_unit (sep_span_p_
, break_malt_p_
);
85 typeset_element (break_malt_p_
);
90 Separating_group_spanner::add_spacing_unit (sep_span_p_
, nobreak_malt_p_
);
91 typeset_element (nobreak_malt_p_
);
98 ADD_THIS_TRANSLATOR(Separating_line_group_engraver
);