blob: 56a6783fbfa34d338eac0366b6ecf5e9a90d864d (
about) (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
LilyPond is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include <set>
#include "duration.hh"
#include "engraver.hh"
#include "international.hh"
#include "item.hh"
#include "moment.hh"
#include "note-column.hh"
#include "paper-column.hh"
#include "rest.hh"
#include "rest-collision.hh"
#include "rhythmic-head.hh"
#include "stream-event.hh"
#include "warn.hh"
#include "translator.icc"
class Rest_collision_engraver : public Engraver
{
protected:
Grob *rest_collision_;
void process_acknowledged ();
void stop_translation_timestep ();
public:
TRANSLATOR_DECLARATIONS (Rest_collision_engraver);
};
Rest_collision_engraver::Rest_collision_engraver ()
{
rest_collision_ = 0;
}
void
Rest_collision_engraver::process_acknowledged ()
{
vsize rest_count = 0;
set<Grob *> columns;
Moment now = now_mom ();
for (SCM s = get_property ("busyGrobs"); scm_is_pair (s); s = scm_cdr (s))
{
Grob *g = unsmob<Grob> (scm_cdar (s));
Moment *m = unsmob<Moment> (scm_caar (s));
if (!g || !m)
continue;
if (has_interface<Rhythmic_head> (g) && (*m) > now)
{
Grob *column = g->get_parent (X_AXIS);
if (!column)
continue;
// Only include rests that start now. Include notes that started any time.
Paper_column *paper_column = dynamic_cast<Item *> (column)->get_column ();
if (!has_interface<Rest> (g) || !paper_column || Paper_column::when_mom (paper_column) == now)
{
columns.insert (column);
rest_count += Note_column::has_rests (column);
}
}
}
if (!rest_collision_ && rest_count && columns.size () > 1)
{
rest_collision_ = make_item ("RestCollision", SCM_EOL);
for (set<Grob *>::iterator i = columns.begin (); i != columns.end (); ++i)
Rest_collision::add_column (rest_collision_, *i);
}
}
void
Rest_collision_engraver::stop_translation_timestep ()
{
rest_collision_ = 0;
}
void
Rest_collision_engraver::boot ()
{
}
ADD_TRANSLATOR (Rest_collision_engraver,
/* doc */
"Handle collisions of rests.",
/* create */
"RestCollision ",
/* read */
"busyGrobs ",
/* write */
""
);
|
