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
|
/*
accidental.cc -- implement Accidental_interface
source file of the GNU LilyPond music typesetter
(c) 2001--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "accidental-interface.hh"
#include "font-interface.hh"
#include "international.hh"
#include "item.hh"
#include "output-def.hh"
#include "paper-column.hh"
#include "pitch.hh"
#include "stencil.hh"
Stencil
parenthesize (Grob *me, Stencil m)
{
Font_metric * font
= Font_interface::get_default_font (me);
Stencil open
= font->find_by_name ("accidentals.leftparen");
Stencil close
= font->find_by_name ("accidentals.rightparen");
m.add_at_edge (X_AXIS, LEFT, Stencil (open), 0);
m.add_at_edge (X_AXIS, RIGHT, Stencil (close), 0);
return m;
}
/* If this gets called before line breaking, we will return a non-trivial
extent even if we belong to a tie and won't actually get printed. */
static SCM
get_extent (Grob *me, Axis a)
{
Stencil *s = unsmob_stencil (Accidental_interface::get_stencil (me));
if (s)
return ly_interval2scm (s->extent (a));
return ly_interval2scm (Interval ());
}
MAKE_SCHEME_CALLBACK (Accidental_interface, height, 1);
SCM
Accidental_interface::height (SCM smob)
{
return get_extent (unsmob_grob (smob), Y_AXIS);
}
MAKE_SCHEME_CALLBACK (Accidental_interface, width, 1);
SCM
Accidental_interface::width (SCM smob)
{
return get_extent (unsmob_grob (smob), X_AXIS);
}
MAKE_SCHEME_CALLBACK (Accidental_interface, pure_height, 3);
SCM
Accidental_interface::pure_height (SCM smob, SCM start_scm, SCM)
{
Item *me = dynamic_cast<Item*> (unsmob_grob (smob));
int start = scm_to_int (start_scm);
int rank = me->get_column ()->get_rank ();
if (to_boolean (me->get_property ("forced"))
|| !unsmob_grob (me->get_object ("tie"))
|| rank == start + 1) /* we are at the start of a line */
{
Stencil *s = unsmob_stencil (get_stencil (me));
if (s)
return ly_interval2scm (s->extent (Y_AXIS));
}
return ly_interval2scm (Interval ());
}
vector<Box>
Accidental_interface::accurate_boxes (Grob *me, Grob **common)
{
Box b;
b[X_AXIS] = me->extent (me, X_AXIS);
b[Y_AXIS] = me->extent (me, Y_AXIS);
vector<Box> boxes;
bool parens = to_boolean (me->get_property ("parenthesized"));
if (!me->is_live ())
return boxes;
if (!to_boolean (me->get_property ("restore-first"))
&& !parens)
{
SCM alist = me->get_property ("glyph-name-alist");
SCM alt = me->get_property ("alteration");
string glyph_name = robust_scm2string (ly_assoc_get (alt, alist, SCM_BOOL_F),
"");
if (glyph_name == "accidentals.flat"
|| glyph_name == "accidentals.mirroredflat")
{
Box stem = b;
Box bulb = b;
/*
we could make the stem thinner, but that places the flats
really close.
*/
Direction bulb_dir =
glyph_name=="accidentals.mirroredflat" ? LEFT : RIGHT;
stem[X_AXIS][bulb_dir] = stem[X_AXIS].center ();
/*
To prevent vertical alignment for 6ths
*/
stem[Y_AXIS] *= 1.1;
bulb[Y_AXIS][UP] *= .35;
boxes.push_back (bulb);
boxes.push_back (stem);
}
else if (glyph_name == "accidentals.natural")
{
Box lstem = b;
Box rstem = b;
Box belly = b;
lstem[Y_AXIS] *= 1.1;
rstem[Y_AXIS] *= 1.1;
belly[Y_AXIS] *= 0.75;
lstem[X_AXIS][RIGHT] *= .33;
rstem[X_AXIS][LEFT] = rstem[X_AXIS].linear_combination (1.0 / 3.0);
lstem[Y_AXIS][DOWN] = belly[Y_AXIS][DOWN];
rstem[Y_AXIS][UP] = belly[Y_AXIS][UP];
boxes.push_back (belly);
boxes.push_back (lstem);
boxes.push_back (rstem);
}
/*
TODO: add support for, double flat.
*/
}
if (!boxes.size ())
boxes.push_back (b);
Offset o (me->relative_coordinate (common[X_AXIS], X_AXIS),
me->relative_coordinate (common[Y_AXIS], Y_AXIS));
for (vsize i = boxes.size (); i--;)
boxes[i].translate (o);
return boxes;
}
MAKE_SCHEME_CALLBACK (Accidental_interface, print, 1);
SCM
Accidental_interface::print (SCM smob)
{
Grob *me = unsmob_grob (smob);
Grob *tie = unsmob_grob (me->get_object ("tie"));
if (tie && !tie->original ()
&& !to_boolean (me->get_property ("forced")))
{
me->suicide ();
return SCM_EOL;
}
return get_stencil (me);
}
SCM
Accidental_interface::get_stencil (Grob *me)
{
Font_metric *fm = Font_interface::get_default_font (me);
SCM alist = me->get_property ("glyph-name-alist");
SCM alt = me->get_property ("alteration");
SCM glyph_name = ly_assoc_get (alt, alist, SCM_BOOL_F);
if (!scm_is_string (glyph_name))
{
me->warning (_f ("Could not find glyph-name for alteration %s",
ly_scm_write_string (alt).c_str ()));
return SCM_EOL;
}
Stencil mol (fm->find_by_name (ly_scm2string (glyph_name)));
if (to_boolean (me->get_property ("restore-first")))
{
/*
this isn't correct for ancient accidentals, but they don't
use double flats/sharps anyway.
*/
Stencil acc (fm->find_by_name ("accidentals.natural"));
if (acc.is_empty ())
me->warning (_ ("natural alteration glyph not found"));
else
mol.add_at_edge (X_AXIS, LEFT, acc, 0.1);
}
if (to_boolean (me->get_property ("parenthesized")))
mol = parenthesize (me, mol);
return mol.smobbed_copy ();
}
ADD_INTERFACE (Accidental_interface,
"A single accidental.",
/* properties */
"alteration "
"avoid-slur "
"forced "
"parenthesized "
"restore-first "
"glyph-name-alist "
"tie "
);
|
