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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
Mats Bengtsson <matsb@s3.kth.se>
Copyright (C) 2010--2015 Reinhold Kainhofer <reinhold@kainhofer.com>
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 <cctype>
using namespace std;
#include "item.hh"
#include "context.hh"
#include "staff-symbol-referencer.hh"
#include "engraver.hh"
#include "direction.hh"
#include "side-position-interface.hh"
#include "warn.hh"
#include "international.hh"
#include "translator.icc"
class Cue_clef_engraver : public Engraver
{
public:
TRANSLATOR_DECLARATIONS (Cue_clef_engraver);
protected:
void stop_translation_timestep ();
void process_music ();
void acknowledge_bar_line (Grob_info);
virtual void derived_mark () const;
private:
Item *clef_;
Item *modifier_;
SCM prev_glyph_;
SCM prev_cpos_;
SCM prev_transposition_;
void create_clef ();
void create_end_clef ();
void set_glyph ();
void inspect_clef_properties ();
void create_clef_modifier (SCM oct);
};
void
Cue_clef_engraver::derived_mark () const
{
scm_gc_mark (prev_transposition_);
scm_gc_mark (prev_cpos_);
scm_gc_mark (prev_glyph_);
}
Cue_clef_engraver::Cue_clef_engraver ()
{
clef_ = 0;
modifier_ = 0;
prev_transposition_ = prev_cpos_ = prev_glyph_ = SCM_EOL;
}
void
Cue_clef_engraver::set_glyph ()
{
SCM glyph_sym = ly_symbol2scm ("glyph");
SCM basic = ly_symbol2scm ("CueClef");
execute_pushpop_property (context (), basic, glyph_sym, SCM_UNDEFINED);
execute_pushpop_property (context (), basic, glyph_sym, get_property ("cueClefGlyph"));
basic = ly_symbol2scm ("CueEndClef");
execute_pushpop_property (context (), basic, glyph_sym, SCM_UNDEFINED);
execute_pushpop_property (context (), basic, glyph_sym, get_property ("clefGlyph"));
}
/**
Generate a clef at the start of a measure. (when you see a Bar,
ie. a breakpoint)
*/
void
Cue_clef_engraver::acknowledge_bar_line (Grob_info info)
{
Item *item = info.item ();
if (item && scm_is_string (get_property ("cueClefGlyph")))
create_clef ();
}
void
Cue_clef_engraver::create_clef_modifier (SCM transp)
{
if (scm_is_number (transp) && scm_to_int (transp))
{
Item *g = make_item ("ClefModifier", SCM_EOL);
int abs_transp = scm_to_int (transp);
int dir = sign (abs_transp);
abs_transp = abs (abs_transp) + 1;
SCM txt = scm_number_to_string (scm_from_int (abs_transp),
scm_from_int (10));
SCM style = get_property ("cueClefTranspositionStyle");
SCM formatter = get_property ("cueClefTranspositionFormatter");
if (ly_is_procedure (formatter))
g->set_property ("text", scm_call_2 (formatter, txt, style));
Side_position_interface::add_support (g, clef_);
g->set_parent (clef_, Y_AXIS);
g->set_parent (clef_, X_AXIS);
g->set_property ("direction", scm_from_int (dir));
modifier_ = g;
}
}
void
Cue_clef_engraver::create_clef ()
{
if (!clef_)
{
Item *c = make_item ("CueClef", SCM_EOL);
clef_ = c;
SCM cpos = get_property ("cueClefPosition");
if (scm_is_number (cpos))
clef_->set_property ("staff-position", cpos);
create_clef_modifier (get_property ("cueClefTransposition"));
}
}
void
Cue_clef_engraver::create_end_clef ()
{
if (!clef_)
{
clef_ = make_item ("CueEndClef", SCM_EOL);
SCM cpos = get_property ("clefPosition");
if (scm_is_number (cpos))
clef_->set_property ("staff-position", cpos);
create_clef_modifier (get_property ("clefTransposition"));
}
}
void
Cue_clef_engraver::process_music ()
{
inspect_clef_properties ();
}
void
Cue_clef_engraver::inspect_clef_properties ()
{
SCM glyph = get_property ("cueClefGlyph");
SCM clefpos = get_property ("cueClefPosition");
SCM transposition = get_property ("cueClefTransposition");
if (!ly_is_equal (glyph, prev_glyph_)
|| !ly_is_equal (clefpos, prev_cpos_)
|| !ly_is_equal (transposition, prev_transposition_))
{
set_glyph ();
if (scm_is_string (glyph))
{
create_clef ();
if (clef_)
clef_->set_property ("non-default", SCM_BOOL_T);
}
else
create_end_clef ();
prev_cpos_ = clefpos;
prev_glyph_ = glyph;
prev_transposition_ = transposition;
}
}
void
Cue_clef_engraver::stop_translation_timestep ()
{
if (clef_)
{
SCM vis = 0;
if (to_boolean (clef_->get_property ("non-default")))
vis = get_property ("explicitCueClefVisibility");
if (vis)
clef_->set_property ("break-visibility", vis);
clef_ = 0;
modifier_ = 0;
}
}
void
Cue_clef_engraver::boot ()
{
ADD_ACKNOWLEDGER (Cue_clef_engraver, bar_line);
}
ADD_TRANSLATOR (Cue_clef_engraver,
/* doc */
"Determine and set reference point for pitches in cued voices.",
/* create */
"CueClef "
"CueEndClef "
"ClefModifier ",
/* read */
"cueClefGlyph "
"cueClefTransposition "
"cueClefTranspositionStyle "
"cueClefPosition "
"explicitCueClefVisibility "
"middleCCuePosition "
"clefTransposition ",
/* write */
""
);
|
