1 ;;;; define-grobs.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2006 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
8 ;;;; distances are given in line-thickness (thicknesses) and
9 ;;;; staff-space (distances)
11 ;;;; WARNING: the meta field should be the last one.
12 ;;;; WARNING: don't use anonymous functions for initialization.
14 ;; TODO: junk the meta field in favor of something more compact?
16 ;;; todo:: reorder sensibly.
18 (define-public all-grob-descriptions
23 (cautionary-style . parentheses)
25 (stencil . ,ly:accidental-interface::print)
27 . ,ly:accidental-interface::after-line-breaking)
29 (meta . ((class . Item)
30 (interfaces . (accidental-interface
35 (stencil . ,ly:accidental-interface::print)
36 (X-offset . ,(ly:make-simple-closure
38 ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-x-parent))
39 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
40 (self-alignment-X . ,CENTER)
42 (cautionary-style . smaller)
43 (Y-offset . ,ly:side-position-interface::y-aligned-side)
44 (cautionary-style . parentheses)
46 (staff-padding . 0.25)
49 (meta . ((class . Item)
50 (interfaces . (side-position-interface
53 accidental-suggestion-interface
54 self-alignment-interface
60 (positioning-done . ,ly:accidental-placement::calc-positioning-done)
61 (X-extent . ,ly:axis-group-interface::width)
63 ;; this is quite small, but it is very ugly to have
64 ;; accs closer to the previous note than to the next one.
65 (right-padding . 0.15)
66 (meta . ((class . Item)
67 (interfaces . (accidental-placement-interface))))))
71 (X-extent . ,ly:axis-group-interface::width)
72 (X-extent . ,ly:axis-group-interface::height)
75 (clef . (extra-space . 0.5))
76 (key-signature . (extra-space . 0.0))
77 (staff-bar . (extra-space . 0.0))
78 (time-signature . (extra-space . 0.0))
79 (first-note . (fixed-space . 0.0))))
81 (break-align-symbol . ambitus)
82 (break-visibility . ,begin-of-line-visible)
83 (meta . ((class . Item)
84 (interfaces . (axis-group-interface
85 break-aligned-interface
86 ambitus-interface))))))
91 (stencil . ,ly:ambitus::print)
95 (X-offset . ,ly:self-alignment-interface::centered-on-x-parent)
97 (meta . ((class . Item)
98 (interfaces . (ambitus-interface
99 staff-symbol-referencer-interface
103 (font-family . music)
105 (X-offset . ,ly:side-position-interface::x-aligned-side)
107 (cautionary-style . parentheses)
109 (stencil . ,ly:accidental-interface::print)
110 (after-line-breaking . ,ly:accidental-interface::after-line-breaking)
113 (meta . ((class . Item)
114 (interfaces . (item-interface
116 break-aligned-interface
117 side-position-interface
124 (stencil . ,ly:note-head::print)
125 (glyph-name . ,note-head::calc-glyph-name)
127 (Y-offset . ,ly:staff-symbol-referencer::callback)
128 (meta . ((class . Item)
129 (interfaces . (font-interface
132 staff-symbol-referencer-interface
133 rhythmic-head-interface
134 ledgered-interface))))))
137 . ((X-extent . ,ly:arpeggio::width)
138 (stencil . ,ly:arpeggio::print)
139 (Y-offset . ,ly:staff-symbol-referencer::callback)
140 (X-offset . ,ly:side-position-interface::x-aligned-side)
144 (staff-position . 0.0)
145 (meta . ((class . Item)
146 (interfaces . (arpeggio-interface
147 staff-symbol-referencer-interface
148 side-position-interface
153 (break-align-symbol . staff-bar)
156 (break-visibility . ,all-visible)
159 (stencil . ,ly:bar-line::print)
160 (glyph-name . ,bar-line::calc-glyph-name)
161 (bar-size . ,ly:bar-line::calc-bar-size)
164 (time-signature . (extra-space . 0.75))
165 (custos . (minimum-space . 2.0))
166 (clef . (minimum-space . 1.0))
167 (key-signature . (extra-space . 1.0))
168 (key-cancellation . (extra-space . 1.0))
169 (first-note . (fixed-space . 1.3))
170 (next-note . (semi-fixed-space . 1.3))
171 (right-edge . (extra-space . 0.0))))
174 ;; Ross. page 151 lists other values, we opt for a leaner look
177 ;; kern should scale with line-thickness too.
180 (hair-thickness . 1.9)
181 (thick-thickness . 6.0)
182 (meta . ((class . Item)
183 (interfaces . (bar-line-interface
184 break-aligned-interface
189 (stencil . ,ly:text-interface::print)
191 (break-visibility . ,begin-of-line-visible)
194 (font-family . roman)
196 (Y-offset . ,ly:side-position-interface::y-aligned-side)
198 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
199 (self-alignment-X . 1)
203 (interfaces . (side-position-interface
205 self-alignment-interface
207 break-aligned-interface))))
213 (stencil . ,ly:text-interface::print)
215 (meta . ((class . Item)
216 (interfaces . (text-interface
217 rhythmic-grob-interface
218 bass-figure-interface
223 (stencil . ,ly:enclosing-bracket::print)
225 (edge-height . (0.2 . 0.2))
226 (meta . ((class . Item)
227 (interfaces . (enclosing-bracket-interface)) ))
229 (BassFigureContinuation
232 (stencil . ,ly:figured-bass-continuation::print)
234 (Y-offset . ,ly:figured-bass-continuation::center-on-figures)
235 (meta . ((class . Spanner)
236 (interfaces . (figured-bass-continuation-interface))
242 (Y-extent . ,ly:axis-group-interface::height)
244 (meta . ((class . Spanner)
245 (interfaces . (axis-group-interface
251 (threshold . (2 . 1000))
253 (positioning-done . ,ly:align-interface::calc-positioning-done)
254 (Y-extent . ,ly:axis-group-interface::height)
257 (meta . ((class . Spanner)
258 (interfaces . (align-interface
259 axis-group-interface))))))
263 ;; todo: clean this up a bit: the list is getting
266 (positions . ,(ly:make-simple-closure
267 (ly:make-simple-closure
268 (list chain-grob-member-functions
270 ly:beam::calc-least-squares-positions
271 ly:beam::slope-damping
272 ly:beam::shift-region-to-valid
276 ;; this is a hack to set stem lengths, if positions is set.
277 (quantized-positions . ,ly:beam::set-stem-lengths)
278 (concaveness . ,ly:beam::calc-concaveness)
279 (direction . ,ly:beam::calc-direction)
280 (shorten . ,ly:beam::calc-stem-shorten)
281 (beaming . ,ly:beam::calc-beaming)
282 (stencil . ,ly:beam::print)
284 ;; TODO: should be in SLT.
285 (thickness . 0.48) ; in staff-space
286 (neutral-direction . ,DOWN)
288 ;; Whe have some unreferenced problems here.
290 ;; If we shorten beamed stems less than normal stems (1 staff-space),
291 ;; or high order less than 8th beams, patterns like
292 ;; c''4 [c''8 c''] c''4 [c''16 c]
293 ;; are ugly (different stem lengths).
295 ;; But if we shorten 16th beams as much as 8th beams, a single
296 ;; forced 16th beam looks *very* short.
298 ;; We choose to shorten 8th beams the same as single stems,
299 ;; and high order beams less than 8th beams, so that all
300 ;; isolated shortened beams look nice and a bit shortened,
301 ;; sadly possibly breaking patterns with high order beams.
302 (beamed-stem-shorten . (1.0 0.5 0.25))
304 (auto-knee-gap . 5.5)
306 ;; only for debugging.
307 (font-family . roman)
308 (meta . ((class . Spanner)
309 (interfaces . (staff-symbol-referencer-interface
316 (positioning-done . ,ly:break-align-interface::calc-positioning-done)
317 (X-extent . ,ly:axis-group-interface::width)
318 (break-align-orders . ;; end of line
340 time-signature custos)
354 (meta . ((class . Item)
355 (interfaces . (break-alignment-interface
356 axis-group-interface))))))
361 (X-extent . ,ly:axis-group-interface::width)
362 (meta . ((class . Item)
363 (interfaces . (break-aligned-interface
364 axis-group-interface))))))
368 (break-align-symbol . breathing-sign)
371 (ambitus . (extra-space . 2.0))
372 (custos . (minimum-space . 1.0))
373 (key-signature . (minimum-space . 1.5))
374 (time-signature . (minimum-space . 1.5))
375 (staff-bar . (minimum-space . 1.5))
376 (clef . (minimum-space . 2.0))
377 (first-note . (fixed-space . 1.0)) ;huh?
378 (right-edge . (extra-space . 0.1))))
380 (stencil . ,ly:text-interface::print)
382 (text . ,(make-musicglyph-markup "scripts.rcomma"))
383 (Y-offset . ,ly:breathing-sign::offset-callback)
384 (break-visibility . ,begin-of-line-invisible)
385 (meta . ((class . Item)
386 (interfaces . (break-aligned-interface
387 breathing-sign-interface
394 (stencil . ,ly:clef::print)
395 (glyph-name . ,ly:clef::calc-glyph-name)
398 (font-family . music)
399 (break-align-symbol . clef)
400 (break-visibility . ,begin-of-line-visible)
401 (space-alist . ((ambitus . (extra-space . 2.0))
402 (staff-bar . (extra-space . 0.7))
403 (key-cancellation . (minimum-space . 3.5))
404 (key-signature . (minimum-space . 3.5))
405 (time-signature . (minimum-space . 4.2))
406 (first-note . (minimum-fixed-space . 5.0))
407 (next-note . (extra-space . 0.5))
408 (right-edge . (extra-space . 0.5))))
409 (Y-offset . ,ly:staff-symbol-referencer::callback)
410 (meta . ((class . Item)
411 (interfaces . (clef-interface
412 staff-symbol-referencer-interface
414 break-aligned-interface))))))
416 (ClusterSpannerBeacon
419 (Y-extent . ,ly:cluster-beacon::height)
421 (meta . ((class . Item)
422 (interfaces . (cluster-beacon-interface))))))
427 (springs-and-rods . ,ly:spanner::set-spacing-rods)
428 (stencil . ,ly:cluster::print)
431 (minimum-length . 0.0)
434 (meta . ((class . Spanner)
435 (interfaces . (cluster-interface))))))
440 (stencil . ,ly:text-interface::print)
441 (after-line-breaking . ,ly:chord-name::after-line-breaking)
446 (meta . ((class . Item)
447 (interfaces . (font-interface
448 rhythmic-grob-interface
456 (stencil . ,ly:text-interface::print)
458 (no-spacing-rods . #t)
459 (Y-offset . ,ly:side-position-interface::y-aligned-side)
460 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
463 (staff-padding . 0.5)
464 (script-priority . 200)
465 ;; todo: add X self alignment?
469 (meta . ((class . Item)
470 (interfaces . (text-script-interface
472 side-position-interface
477 (break-align-symbol . custos)
480 (stencil . ,ly:custos::print)
482 (break-visibility . ,end-of-line-visible)
484 (neutral-direction . ,DOWN)
485 (Y-offset . ,ly:staff-symbol-referencer::callback)
487 (first-note . (minimum-fixed-space . 0.0))
488 (right-edge . (extra-space . 0.1))))
489 (meta . ((class . Item)
492 staff-symbol-referencer-interface
494 break-aligned-interface))))))
501 (positioning-done . ,ly:dot-column::calc-positioning-done)
502 (X-extent . ,ly:axis-group-interface::width)
504 (X-offset . ,ly:dot-column::side-position)
505 (meta . ((class . Item)
506 (interfaces . (dot-column-interface
507 axis-group-interface))))))
512 (stencil . ,ly:dots::print)
515 (meta . ((class . Item)
516 (interfaces . (font-interface
517 staff-symbol-referencer-interface
522 (stencil . ,ly:percent-repeat-item-interface::double-percent)
525 (font-encoding . fetaMusic)
528 (break-align-symbol . staff-bar)
529 (break-visibility . ,begin-of-line-invisible)
530 (meta . ((class . Item)
531 (interfaces . (font-interface
532 break-aligned-interface
533 percent-repeat-interface))))))
535 (DoublePercentRepeatCounter
538 (stencil . ,ly:text-interface::print)
539 (X-offset . ,(ly:make-simple-closure `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-y-parent))
540 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
541 (Y-offset . ,ly:side-position-interface::y-aligned-side)
542 (font-encoding . fetaNumber)
543 (self-alignment-X . 0)
547 (staff-padding . 0.25)
549 (meta . ((class . Item)
550 (interfaces . (side-position-interface
551 self-alignment-interface
552 percent-repeat-interface
558 (Y-offset . ,ly:side-position-interface::y-aligned-side)
559 (staff-padding . 0.1)
561 (avoid-slur . outside)
563 (minimum-space . 1.2)
567 (Y-extent . ,ly:axis-group-interface::height)
568 (X-extent . ,ly:axis-group-interface::width)
571 (meta . ((class . Spanner)
572 (interfaces . (axis-group-interface
574 dynamic-line-spanner-interface
575 side-position-interface))))))
582 (stencil . ,ly:text-interface::print)
583 (direction . ,ly:script-interface::calc-direction)
585 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
586 (self-alignment-X . 0)
587 (Y-offset . ,ly:self-alignment-interface::y-aligned-on-self)
588 (self-alignment-Y . 0)
590 (font-encoding . fetaDynamic)
591 (font-shape . italic)
592 (avoid-slur . around)
593 (no-spacing-rods . #t)
594 (script-priority . 100)
595 (meta . ((class . Item)
596 (interfaces . (font-interface
598 self-alignment-interface
600 script-interface))))))
605 (stencil . ,ly:dynamic-text-spanner::print)
607 ;; rather ugh with NCSB
608 ;; (font-series . bold)
609 (font-shape . italic)
610 (style . dashed-line)
612 ;; need to blend with dynamic texts.
614 (bound-padding . 0.75)
615 (dash-fraction . 0.2)
617 (meta . ((class . Spanner)
618 (interfaces . (font-interface
621 dynamic-text-spanner-interface
622 spanner-interface))))))
627 ;; sync with TextScript (?)
630 (avoid-slur . around)
632 (staff-padding . 0.5)
633 (self-alignment-X . 0)
634 (self-alignment-Y . 0)
635 (script-priority . 100)
637 (stencil . ,ly:text-interface::print)
638 (direction . ,ly:script-interface::calc-direction)
640 (font-encoding . fetaNumber)
641 (font-size . -5) ; don't overlap when next to heads.
642 (meta . ((class . Item)
643 (interfaces . (finger-interface
645 text-script-interface
647 side-position-interface
648 self-alignment-interface
654 (zigzag-width . 0.75)
659 (stencil . ,ly:line-spanner::print)
660 (after-line-breaking . ,ly:line-spanner::after-line-breaking)
663 (meta . ((class . Spanner)
664 (interfaces . (line-interface
665 line-spanner-interface))))))
671 (meta . ((class . Item)
672 (interfaces . (grid-point-interface))))))
677 (X-extent . ,ly:grid-line-interface::width)
678 (stencil . ,ly:grid-line-interface::print)
680 (self-alignment-X . ,CENTER)
681 (X-offset . ,(ly:make-simple-closure
682 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-x-parent))
683 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
685 (meta . ((class . Item)
686 (interfaces . (self-alignment-interface
687 grid-line-interface))))))
693 (stencil . ,ly:hairpin::print)
694 (springs-and-rods . ,ly:spanner::set-spacing-rods)
695 (after-line-breaking . ,ly:hairpin::after-line-breaking)
699 (minimum-length . 2.0)
700 (bound-padding . 1.0)
701 (self-alignment-Y . 0)
702 (Y-offset . ,ly:self-alignment-interface::y-aligned-on-self)
703 (meta . ((class . Spanner)
704 (interfaces . (hairpin-interface
706 self-alignment-interface
708 spanner-interface))))))
713 (stencil . ,ly:horizontal-bracket::print)
714 (Y-offset . ,ly:side-position-interface::y-aligned-side)
716 (staff-padding . 0.2)
719 (bracket-flare . (0.5 . 0.5))
720 (meta . ((class . Spanner)
721 (interfaces . (horizontal-bracket-interface
722 side-position-interface
724 spanner-interface))))))
729 (stencil . ,ly:system-start-delimiter::print)
730 (X-offset . ,ly:side-position-interface::x-aligned-side)
732 (self-alignment-Y . ,CENTER)
733 (meta . ((class . Spanner)
734 (interfaces . (system-start-text-interface
735 side-position-interface
741 (stencil . ,ly:key-signature-interface::print)
744 (time-signature . (extra-space . 1.25))
745 (staff-bar . (extra-space . 0.6))
746 (key-signature . (extra-space . 0.5))
747 (right-edge . (extra-space . 0.5))
748 (first-note . (fixed-space . 2.5))))
749 (Y-offset . ,ly:staff-symbol-referencer::callback)
750 (break-align-symbol . key-cancellation)
751 (break-visibility . ,begin-of-line-invisible)
754 (meta . ((class . Item)
755 (interfaces . (key-signature-interface
757 break-aligned-interface))))))
761 (stencil . ,ly:key-signature-interface::print)
764 (time-signature . (extra-space . 1.15))
765 (staff-bar . (extra-space . 1.1))
766 (right-edge . (extra-space . 0.5))
767 (first-note . (fixed-space . 2.5))))
768 (Y-offset . ,ly:staff-symbol-referencer::callback)
769 (break-align-symbol . key-signature)
770 (break-visibility . ,begin-of-line-visible)
773 (meta . ((class . Item)
774 (interfaces . (key-signature-interface
776 break-aligned-interface))))))
780 (stencil . ,ly:tie::print)
781 (control-points . ,ly:laissez-vibrer-tie::calc-control-points)
782 (direction . ,ly:laissez-vibrer-tie::calc-direction)
784 (details . ((ratio . 0.333)
785 (height-limit . 1.0)))
787 (meta . ((class . Item)
788 (interfaces . (laissez-vibrer-tie-interface))
792 (LaissezVibrerTieColumn
796 (positioning-done . ,ly:laissez-vibrer-tie-column::calc-positioning-done)
797 (meta . ((class . Item)
798 (interfaces . (laissez-vibrer-tie-column-interface))
805 (springs-and-rods . ,ly:ledger-line-spanner::set-spacing-rods)
807 (stencil . ,ly:ledger-line-spanner::print)
811 (minimum-length-fraction . 0.25)
812 (length-fraction . 0.25)
814 (meta . ((class . Spanner)
815 (interfaces . (ledger-line-interface))))))
819 (break-align-symbol . left-edge)
822 (break-visibility . ,center-invisible)
824 (custos . (extra-space . 0.0))
825 (ambitus . (extra-space . 2.0))
826 (time-signature . (extra-space . 1.0))
827 (staff-bar . (extra-space . 0.0))
828 (breathing-sign . (minimum-space . 0.0))
829 (clef . (extra-space . 0.8))
830 (first-note . (fixed-space . 2.0))
831 (right-edge . (extra-space . 0.0))
832 (key-signature . (extra-space . 0.0))
833 (key-cancellation . (extra-space . 0.0))
835 (meta . ((class . Item)
836 (interfaces . (break-aligned-interface))))))
840 ;; ugh. A ligature bracket is totally different from
845 (edge-height . (0.7 . 0.7))
846 (shorten-pair . (-0.2 . -0.2))
848 (positions . ,ly:tuplet-bracket::calc-positions)
849 (stencil . ,ly:tuplet-bracket::print)
850 (staff-padding . 0.25)
851 (connect-to-neighbor . ,ly:tuplet-bracket::calc-connect-to-neighbors)
852 (control-points . ,ly:tuplet-bracket::calc-control-points)
853 (meta . ((class . Spanner)
854 (interfaces . (line-interface
855 tuplet-bracket-interface))))))
863 (minimum-length . 0.3)
864 (minimum-distance . 0.1)
866 (springs-and-rods . ,ly:hyphen-spanner::set-spacing-rods)
868 (stencil . ,ly:hyphen-spanner::print)
871 (meta . ((class . Spanner)
872 (interfaces . (lyric-interface
874 lyric-hyphen-interface
875 spanner-interface))))))
880 (stencil . ,ly:lyric-extender::print)
882 (thickness . 0.8) ; line-thickness
883 (minimum-length . 1.5)
885 (meta . ((class . Spanner)
886 (interfaces . (lyric-interface
887 lyric-extender-interface))))))
890 . ((minimum-distance . 0.3)
891 (springs-and-rods . ,ly:hyphen-spanner::set-spacing-rods)
895 (meta . ((class . Spanner)
896 (interfaces . (spanner-interface
897 lyric-hyphen-interface spacing-interface))
902 (stencil . ,ly:text-interface::print)
903 (X-offset . ,ly:self-alignment-interface::aligned-on-x-parent)
904 (self-alignment-X . 0)
906 (font-series . bold-narrow)
908 (meta . ((class . Item)
909 (interfaces . (rhythmic-grob-interface
910 lyric-syllable-interface
911 self-alignment-interface
918 (Y-offset . ,ly:side-position-interface::y-aligned-side)
921 (stencil . ,ly:measure-grouping::print)
928 (meta . ((class . Spanner)
929 (interfaces . (side-position-interface
930 measure-grouping-interface))))))
934 (neutral-direction . ,DOWN)
935 (meta . ((class . Item)
936 (interfaces . (melody-spanner-interface spacing-interface))))))
941 (stencil . ,ly:mensural-ligature::print)
943 (meta . ((class . Spanner)
944 (interfaces . (mensural-ligature-interface
949 (stencil . ,ly:text-interface::print)
950 (Y-offset . ,ly:side-position-interface::y-aligned-side)
954 (meta . ((class . Item)
955 (interfaces . (text-interface
956 side-position-interface
958 metronome-mark-interface))))))
963 (stencil . ,ly:multi-measure-rest::print)
964 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
965 (Y-offset . ,ly:staff-symbol-referencer::callback)
968 (thick-thickness . 6.6)
969 (hair-thickness . 2.0)
971 (meta . ((class . Spanner)
972 (interfaces . (multi-measure-rest-interface
973 multi-measure-interface
976 staff-symbol-referencer-interface))))))
979 (MultiMeasureRestNumber
981 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
982 (stencil . ,ly:text-interface::print)
983 (X-offset . ,(ly:make-simple-closure
984 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self))
985 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent)))))
986 (Y-offset . ,ly:side-position-interface::y-aligned-side)
989 (self-alignment-X . 0)
992 (staff-padding . 0.4)
993 (font-encoding . fetaNumber)
994 (meta . ((class . Spanner)
995 (interfaces . (side-position-interface
996 multi-measure-interface
997 self-alignment-interface
1002 (MultiMeasureRestText
1004 (stencil . ,ly:text-interface::print)
1005 (X-offset . ,(ly:make-simple-closure
1006 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent))
1007 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
1009 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1010 (self-alignment-X . 0)
1013 (staff-padding . 0.25)
1014 (meta . ((class . Spanner)
1015 (interfaces . (side-position-interface
1016 multi-measure-interface
1017 self-alignment-interface
1019 text-interface))))))
1025 (X-extent . ,ly:axis-group-interface::width)
1026 (Y-extent . ,ly:axis-group-interface::height)
1027 (positioning-done . ,ly:note-collision-interface::calc-positioning-done)
1029 (meta . ((class . Item)
1030 (interfaces . (note-collision-interface
1031 axis-group-interface))))))
1036 (X-extent . ,ly:axis-group-interface::width)
1037 (Y-extent . ,ly:axis-group-interface::height)
1039 (meta . ((class . Item)
1040 (interfaces . (axis-group-interface
1041 note-column-interface))))))
1046 (stencil . ,ly:note-head::print)
1047 (stem-attachment . ,ly:note-head::calc-stem-attachment)
1048 (glyph-name . ,note-head::calc-glyph-name)
1049 (Y-offset . ,ly:staff-symbol-referencer::callback)
1050 (X-offset . ,ly:note-head::stem-x-shift)
1051 (meta . ((class . Item)
1052 (interfaces . (rhythmic-grob-interface
1053 rhythmic-head-interface
1057 staff-symbol-referencer-interface))))))
1061 (stem-spacing-correction . 0.5)
1062 (same-direction-correction . 0.25)
1063 ;; Changed this from 0.75.
1064 ;; If you ever change this back, please document! --hwn
1065 (knee-spacing-correction . 1.0)
1067 (meta . ((class . Item)
1068 (interfaces . (spacing-interface
1069 note-spacing-interface))))))
1074 (stencil . ,ly:text-interface::print)
1076 (meta . ((class . Item)
1077 (interfaces . (note-name-interface
1079 font-interface))))))
1083 (self-alignment-X . 0)
1084 (break-visibility . ,begin-of-line-visible)
1085 (X-offset . ,(ly:make-simple-closure
1086 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self))
1087 ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-x-parent)))))
1089 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1091 (stencil . ,ly:text-interface::print)
1094 ;; no Y dimensions, because of lyrics under tenor clef.
1095 (Y-extent . (0 . 0))
1096 (font-shape . italic)
1098 (staff-padding . 0.2)
1100 (meta . ((class . Item)
1101 (interfaces . (text-interface
1102 self-alignment-interface
1103 side-position-interface
1104 font-interface))))))
1108 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1110 (stencil . ,ly:ottava-bracket::print)
1112 (font-shape . italic)
1113 (shorten-pair . (0.0 . -0.6))
1114 (staff-padding . 1.0)
1116 (minimum-length . 1.0)
1117 (dash-fraction . 0.3)
1118 (edge-height . (0 . 1.2))
1120 (meta . ((class . Spanner)
1121 (interfaces . (ottava-bracket-interface
1122 horizontal-bracket-interface
1124 side-position-interface
1126 text-interface))))))
1132 (before-line-breaking . ,ly:paper-column::before-line-breaking)
1133 ;; (stencil . ,ly:paper-column::print)
1134 (X-extent . ,ly:axis-group-interface::width)
1138 ;; (font-size . -6) (font-name . "sans") (Y-extent . #f)
1139 (meta . ((class . Paper_column)
1140 (interfaces . (paper-column-interface
1141 axis-group-interface
1142 spaceable-grob-interface))))))
1146 (stencil . ,parentheses-item::print)
1149 (meta . ((class . Item)
1150 (interfaces . (parentheses-interface font-interface))))
1154 . ((details . ,default-slur-details)
1156 (control-points . ,ly:slur::calc-control-points)
1157 (direction . ,ly:slur::calc-direction)
1158 (springs-and-rods . ,ly:spanner::set-spacing-rods)
1159 (Y-extent . ,ly:slur::height)
1160 (stencil . ,ly:slur::print)
1164 (minimum-length . 1.5)
1165 (height-limit . 2.0)
1167 (meta . ((class . Spanner)
1168 (interfaces . (slur-interface))))))
1170 (NonMusicalPaperColumn
1174 (before-line-breaking . ,ly:paper-column::before-line-breaking)
1175 (X-extent . ,ly:axis-group-interface::width)
1176 ;; (stencil . ,ly:paper-column::print)
1180 ;; debugging stuff: print column number.
1181 ;; (font-size . -6) (font-name . "sans") (Y-extent . #f)
1183 (meta . ((class . Paper_column)
1184 (interfaces . (paper-column-interface
1185 axis-group-interface
1186 spaceable-grob-interface))))))
1191 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
1192 (stencil . ,ly:multi-measure-rest::percent)
1196 (font-encoding . fetaMusic)
1197 (meta . ((class . Spanner)
1198 (interfaces . (multi-measure-rest-interface
1200 percent-repeat-interface))))))
1201 (PercentRepeatCounter
1203 (stencil . ,ly:text-interface::print)
1204 (X-offset . ,(ly:make-simple-closure
1205 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent))
1206 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
1207 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1208 (self-alignment-X . 0)
1211 (staff-padding . 0.25)
1213 (font-encoding . fetaNumber)
1214 (meta . ((class . Spanner)
1215 (interfaces . (side-position-interface
1216 self-alignment-interface
1217 percent-repeat-interface
1219 text-interface))))))
1221 ;; an example of a text spanner
1225 (stencil . ,ly:piano-pedal-bracket::print)
1228 (bound-padding . 1.0)
1230 (bracket-flare . (0.5 . 0.5))
1231 (edge-height . (1.0 . 1.0))
1232 (shorten-pair . (0.0 . 0.0))
1234 (meta . ((class . Spanner)
1235 (interfaces . (line-interface
1236 piano-pedal-interface
1237 piano-pedal-bracket-interface))))))
1241 (stencil . ,ly:text-interface::print)
1242 (X-offset . ,(ly:make-simple-closure
1243 `(,+ ,(ly:make-simple-closure
1244 `(,ly:self-alignment-interface::x-aligned-on-self))
1245 ,(ly:make-simple-closure
1246 `(,ly:self-alignment-interface::centered-on-x-parent)))
1248 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1249 (self-alignment-X . 0)
1254 (break-visibility . ,end-of-line-invisible)
1256 (meta . ((class . Item)
1257 (interfaces . (text-interface
1258 side-position-interface
1261 self-alignment-interface))))))
1266 (stencil . ,ly:percent-repeat-item-interface::beat-slash)
1269 (meta . ((class . Item)
1270 (interfaces . (percent-repeat-interface))))))
1273 (stencil . ,ly:rest::print)
1274 (X-extent . ,ly:rest::width)
1275 (Y-extent . ,ly:rest::height)
1276 (Y-offset . ,ly:rest::y-offset-callback)
1277 (minimum-distance . 0.25)
1278 (meta . ((class . Item)
1279 (interfaces . (font-interface
1280 rhythmic-head-interface
1281 rhythmic-grob-interface
1282 staff-symbol-referencer-interface
1283 rest-interface))))))
1287 (minimum-distance . 0.75)
1288 (positioning-done . ,ly:rest-collision::calc-positioning-done)
1290 (meta . ((class . Item)
1291 (interfaces . (rest-collision-interface))))))
1295 ;; don't set direction here: it breaks staccato.
1297 ;; This value is sensitive: if too large, staccato dots will move a
1300 (staff-padding . 0.25)
1301 ;; (script-priority . 0) priorities for scripts, see script.scm
1302 (X-offset . , ly:self-alignment-interface::centered-on-x-parent)
1305 (stencil . ,ly:script-interface::print)
1306 (direction . ,ly:script-interface::calc-direction)
1308 (font-encoding . fetaMusic)
1309 (meta . ((class . Item)
1310 (interfaces . (script-interface
1311 side-position-interface
1312 font-interface))))))
1317 (before-line-breaking . ,ly:script-column::before-line-breaking)
1319 (meta . ((class . Item)
1320 (interfaces . (script-column-interface))))))
1326 (meta . ((class . Item)
1327 (interfaces . (spacing-interface
1328 separation-item-interface))))))
1330 (SeparatingGroupSpanner
1333 (springs-and-rods . ,ly:separating-group-spanner::set-spacing-rods)
1335 (meta . ((class . Spanner)
1336 (interfaces . (only-prebreak-interface
1338 separation-spanner-interface))))))
1341 . ((details . ,default-slur-details)
1343 (control-points . ,ly:slur::calc-control-points)
1344 (direction . ,ly:slur::calc-direction)
1345 (springs-and-rods . ,ly:spanner::set-spacing-rods)
1346 (Y-extent . ,ly:slur::height)
1347 (stencil . ,ly:slur::print)
1350 (line-thickness . 0.8)
1351 (minimum-length . 1.5)
1353 (height-limit . 2.0)
1355 (meta . ((class . Spanner)
1356 (interfaces . (slur-interface))))))
1361 (springs-and-rods . ,ly:spacing-spanner::set-springs)
1362 (average-spacing-wishes . #t)
1363 (grace-space-factor . 0.6)
1364 (shortest-duration-space . 2.0)
1365 (spacing-increment . 1.2)
1366 (base-shortest-duration . ,(ly:make-moment 3 16))
1367 (meta . ((class . Spanner)
1368 (interfaces . (spacing-interface
1369 spacing-spanner-interface))))))
1373 (break-align-symbol . staff-bar)
1378 (stencil . ,ly:span-bar::print)
1379 (bar-size . ,ly:span-bar::calc-bar-size)
1380 (X-extent . ,ly:span-bar::width)
1381 (glyph-name . ,ly:span-bar::calc-glyph-name)
1382 (before-line-breaking . ,ly:span-bar::before-line-breaking)
1387 ;; Ross. page 151 lists other values, we opt for a leaner look
1391 (hair-thickness . 1.6)
1392 (thick-thickness . 6.0)
1393 (meta . ((class . Item)
1394 (interfaces . (span-bar-interface
1396 bar-line-interface))))))
1400 (stencil . ,ly:text-interface::print)
1402 (font-series . bold)
1404 (X-offset . ,ly:side-position-interface::x-aligned-side)
1407 (meta . ((class . Item)
1408 (interfaces . (side-position-interface
1409 stanza-number-interface
1411 font-interface))))))
1416 (stencil . ,print-circled-text-callback)
1419 (staff-padding . 0.5)
1420 (self-alignment-X . 0)
1421 (self-alignment-Y . 0)
1422 (script-priority . 100)
1423 (font-encoding . fetaNumber)
1424 (font-size . -5) ; don't overlap when next to heads.
1425 (meta . ((class . Item)
1426 (interfaces . (string-number-interface
1428 text-script-interface
1430 side-position-interface
1431 self-alignment-interface
1432 item-interface))))))
1437 (stem-spacing-correction . 0.4)
1438 (meta . ((class . Item)
1439 (interfaces . (spacing-interface
1440 staff-spacing-interface))))))
1445 (stencil . ,ly:text-interface::print)
1447 (direction . ,RIGHT)
1448 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1449 (no-spacing-rods . #t)
1450 (padding . 0.0) ;; padding relative to SostenutoPedalLineSpanner
1451 (font-shape . italic)
1452 (self-alignment-X . 0)
1453 (meta . ((class . Item)
1454 (interfaces . (text-interface
1455 self-alignment-interface
1456 font-interface))))))
1458 (SostenutoPedalLineSpanner
1462 (X-extent . ,ly:axis-group-interface::height)
1464 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1468 (minimum-space . 1.0)
1470 (meta . ((class . Spanner)
1471 (interfaces . (piano-pedal-interface
1472 axis-group-interface
1473 side-position-interface))))))
1477 (Y-extent . ,ly:staff-symbol::height)
1478 (stencil . ,ly:staff-symbol::print)
1480 (ledger-line-thickness . (1.0 . 0.1))
1482 (meta . ((class . Spanner)
1483 (interfaces . (staff-symbol-interface))))))
1487 (direction . ,ly:stem::calc-direction)
1488 (default-direction . ,ly:stem::calc-default-direction)
1489 (stem-end-position . ,ly:stem::calc-stem-end-position)
1490 (stem-info . ,ly:stem::calc-stem-info)
1491 (positioning-done . ,ly:stem::calc-positioning-done)
1492 (stencil . ,ly:stem::print)
1493 (X-extent . ,ly:stem::width)
1494 (Y-extent . ,ly:stem::height)
1495 (length . ,ly:stem::calc-length)
1501 ;; 3.5 (or 3 measured from note head) is standard length
1502 ;; 32nd, 64th flagged stems should be longer
1503 (lengths . (3.5 3.5 3.5 4.5 5.0))
1505 ;; FIXME. 3.5 yields too long beams (according to Ross and
1506 ;; looking at Baerenreiter examples) for a number of common
1507 ;; boundary cases. Subtracting half a beam thickness fixes
1508 ;; this, but the bug may well be somewhere else.
1510 ;; FIXME this should come from 'lengths
1511 (beamed-lengths . (3.26 3.5 3.6))
1513 ;; The 'normal' minima
1514 (beamed-minimum-free-lengths . (1.83 1.5 1.25))
1515 ;(beamed-minimum-free-lengths . (2.0 1.83 1.25))
1517 ;; The 'extreme case' minima
1518 (beamed-extreme-minimum-free-lengths . (2.0 1.25))
1520 ;; Stems in unnatural (forced) direction should be shortened by
1521 ;; one staff space, according to [Roush & Gourlay].
1522 ;; Flagged stems we shorten only half a staff space.
1523 (stem-shorten . (1.0 0.5))
1528 ;; default stem direction for note on middle line
1529 (neutral-direction . ,DOWN)
1531 ;; We use the normal minima as minimum for the ideal lengths,
1532 ;; and the extreme minima as abolute minimum length.
1534 (X-offset . ,ly:stem::offset-callback)
1535 (Y-offset . ,ly:staff-symbol-referencer::callback)
1536 (meta . ((class . Item)
1537 (interfaces . (stem-interface
1538 font-interface))))))
1542 (Y-extent . ,ly:stem-tremolo::height)
1543 (stencil . ,ly:stem-tremolo::print)
1545 (slope . ,ly:stem-tremolo::calc-slope)
1546 (beam-width . 1.6) ; staff-space
1547 (beam-thickness . 0.48) ; staff-space
1548 (meta . ((class . Item)
1549 (interfaces . (stem-tremolo-interface))))))
1553 (no-spacing-rods . #t)
1554 (stencil . ,ly:sustain-pedal::print)
1555 (self-alignment-X . 0)
1556 (direction . ,RIGHT)
1557 (padding . 0.0) ;; padding relative to SustainPedalLineSpanner
1558 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1559 (meta . ((class . Item)
1560 (interfaces . (piano-pedal-interface
1561 text-spanner-interface
1563 self-alignment-interface
1564 font-interface))))))
1566 (SustainPedalLineSpanner
1569 (X-extent . ,ly:axis-group-interface::height)
1570 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1573 (staff-padding . 1.2)
1574 (minimum-space . 1.0)
1576 (meta . ((class . Spanner)
1577 (interfaces . (piano-pedal-interface
1578 axis-group-interface
1579 side-position-interface))))))
1584 (X-extent . ,ly:axis-group-interface::width)
1585 (Y-extent . ,ly:axis-group-interface::height)
1586 (meta . ((class . System)
1587 (interfaces . (system-interface
1588 axis-group-interface))))))
1594 (stencil . ,ly:system-start-delimiter::print)
1595 (collapse-height . 5.0)
1596 (X-offset . ,ly:side-position-interface::x-aligned-side)
1598 (font-encoding . fetaBraces)
1600 (meta . ((class . Spanner)
1601 (interfaces . (system-start-delimiter-interface
1602 side-position-interface
1603 font-interface))))))
1609 (X-offset . ,ly:side-position-interface::x-aligned-side)
1611 (stencil . ,ly:system-start-delimiter::print)
1612 (style . line-bracket)
1614 (meta . ((class . Spanner)
1615 (interfaces . (font-interface
1616 side-position-interface
1617 system-start-delimiter-interface))))))
1622 (X-offset . ,ly:side-position-interface::x-aligned-side)
1624 (stencil . ,ly:system-start-delimiter::print)
1626 (collapse-height . 5.0)
1628 (meta . ((class . Spanner)
1629 (interfaces . (font-interface
1630 side-position-interface
1631 system-start-delimiter-interface))))))
1637 (X-offset . ,ly:side-position-interface::x-aligned-side)
1641 (stencil . ,ly:system-start-delimiter::print)
1642 (meta . ((class . Spanner)
1643 (interfaces . (side-position-interface
1644 system-start-delimiter-interface))))))
1650 (stencil . ,ly:text-interface::print)
1651 (Y-offset . ,ly:staff-symbol-referencer::callback)
1653 (stem-attachment . (1.0 . 1.35))
1654 (font-series . bold)
1655 (meta . ((class . Item)
1657 . (rhythmic-head-interface
1658 font-interface rhythmic-grob-interface
1660 staff-symbol-referencer-interface
1661 text-interface))))))
1665 (no-spacing-rods . #t)
1666 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1669 ;; sync with Fingering ?
1671 (staff-padding . 0.5)
1673 (stencil . ,ly:text-interface::print)
1674 (direction . ,ly:script-interface::calc-direction)
1676 (avoid-slur . around)
1677 (slur-padding . 0.5)
1678 (script-priority . 200)
1679 ;; todo: add X self alignment?
1680 (meta . ((class . Item)
1681 (interfaces . (text-script-interface
1683 side-position-interface
1684 font-interface))))))
1688 (stencil . ,ly:text-spanner::print)
1689 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1690 (font-shape . italic)
1691 (style . dashed-line)
1692 (staff-padding . 0.8)
1693 (dash-fraction . 0.2)
1697 (meta . ((class . Spanner)
1698 (interfaces . (text-spanner-interface
1699 side-position-interface
1700 font-interface))))))
1704 (control-points . ,ly:tie::calc-control-points)
1705 (avoid-slur . inside)
1706 (direction . ,ly:tie::calc-direction)
1707 (stencil . ,ly:tie::print)
1709 ;; for a full list, see tie-helper.cc
1711 (center-staff-line-clearance . 0.6)
1712 (tip-staff-line-clearance . 0.45)
1713 (note-head-gap . 0.2)
1715 (height-limit . 1.0)
1716 (horizontal-distance-penalty-factor . 10)
1717 (tie-tie-collision-distance . 0.45)
1718 (tie-tie-collision-penalty . 25.0)
1719 (intra-space-threshold . 1.25)
1720 (outer-tie-vertical-distance-symmetry-penalty-factor . 10)
1721 (outer-tie-length-symmetry-penalty-factor . 10)
1722 (between-length-limit . 1.0)))
1724 (line-thickness . 0.8)
1725 (meta . ((class . Spanner)
1726 (interfaces . (tie-interface))))
1731 (positioning-done . ,ly:tie-column::calc-positioning-done)
1732 (before-line-breaking . ,ly:tie-column::before-line-breaking)
1735 (meta . ((class . Spanner)
1736 (interfaces . (tie-column-interface))))))
1740 (stencil . ,ly:time-signature::print)
1741 (break-align-symbol . time-signature)
1742 (break-visibility . ,all-visible)
1744 (first-note . (fixed-space . 2.0))
1745 (right-edge . (extra-space . 0.5))
1746 (staff-bar . (minimum-space . 2.0))))
1749 (meta . ((class . Item)
1750 (interfaces . (time-signature-interface
1751 break-aligned-interface
1752 font-interface))))))
1756 (stencil . ,ly:dynamic-text-spanner::print)
1757 (edge-text . ,(cons (make-musicglyph-markup "scripts.trill")
1760 (staff-padding . 1.0)
1763 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1765 (meta . ((class . Spanner)
1766 (interfaces . (text-spanner-interface
1767 side-position-interface
1768 font-interface))))))
1770 (TrillPitchAccidental
1771 . ((X-offset . ,ly:side-position-interface::x-aligned-side)
1776 (stencil . ,ly:accidental-interface::print)
1777 (meta . ((class . Item)
1778 (interfaces . (item-interface
1779 accidental-interface
1780 side-position-interface
1781 font-interface))))))
1784 . ((X-offset . ,ly:side-position-interface::x-aligned-side)
1787 (stencil . ,parenthesize-elements)
1788 (direction . ,RIGHT)
1791 (meta . ((class . Item)
1792 (interfaces . (side-position-interface
1794 rhythmic-head-interface
1796 accidental-interface
1797 axis-group-interface))))))
1801 (stencil . ,ly:note-head::print)
1803 (Y-offset . ,ly:staff-symbol-referencer::callback)
1805 (meta . ((class . Item)
1806 (interfaces . (item-interface
1807 rhythmic-head-interface
1809 pitched-trill-interface
1811 staff-symbol-referencer-interface))))))
1817 (edge-height . (0.7 . 0.7))
1818 (shorten-pair . (-0.2 . -0.2))
1819 (staff-padding . 0.25)
1821 (direction . ,ly:tuplet-bracket::calc-direction)
1822 (positions . ,ly:tuplet-bracket::calc-positions)
1823 (connect-to-neighbor . ,ly:tuplet-bracket::calc-connect-to-neighbors)
1824 (control-points . ,ly:tuplet-bracket::calc-control-points)
1825 (stencil . ,ly:tuplet-bracket::print)
1827 (meta . ((class . Spanner)
1828 (interfaces . (line-interface
1829 tuplet-bracket-interface))))))
1833 (stencil . ,ly:tuplet-number::print)
1834 (font-shape . italic)
1836 (avoid-slur . inside)
1837 (meta . ((class . Spanner)
1838 (interfaces . (text-interface tuplet-number-interface
1839 font-interface))))))
1843 (stencil . ,ly:text-interface::print)
1844 (font-shape . italic)
1845 (no-spacing-rods . #t)
1846 (self-alignment-X . 0)
1847 (direction . ,RIGHT)
1848 (padding . 0.0) ;; padding relative to UnaCordaPedalLineSpanner
1849 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1850 (meta . ((class . Item)
1851 (interfaces . (text-interface
1852 self-alignment-interface
1853 font-interface))))))
1855 (UnaCordaPedalLineSpanner
1858 (X-extent . ,ly:axis-group-interface::height)
1859 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1862 (staff-padding . 1.2)
1863 (minimum-space . 1.0)
1865 (meta . ((class . Spanner)
1866 (interfaces . (piano-pedal-interface
1867 axis-group-interface
1868 side-position-interface))))))
1874 (stencil . ,ly:vaticana-ligature::print)
1875 (meta . ((class . Spanner)
1876 (interfaces . (vaticana-ligature-interface
1877 font-interface))))))
1882 (positioning-done . ,ly:align-interface::calc-positioning-done)
1883 (after-line-breaking . ,ly:align-interface::stretch-after-break)
1884 (Y-extent . ,ly:axis-group-interface::height)
1885 (X-extent . ,ly:axis-group-interface::width)
1887 (meta . ((class . Spanner)
1888 (interfaces . (align-interface
1889 axis-group-interface))))))
1893 (Y-offset . ,ly:hara-kiri-group-spanner::force-hara-kiri-callback)
1895 (Y-extent . ,ly:hara-kiri-group-spanner::y-extent)
1896 (X-extent . ,ly:axis-group-interface::width)
1897 (meta . ((class . Spanner)
1898 (interfaces . (axis-group-interface
1899 hara-kiri-group-interface
1900 vertically-spaceable-interface))))))
1905 (stencil . ,ly:volta-bracket-interface::print)
1906 (after-line-breaking . ,ly:volta-bracket-interface::after-line-breaking)
1909 (font-encoding . fetaNumber)
1910 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1912 (thickness . 1.6) ;; line-thickness
1913 (edge-height . (2.0 . 2.0)) ;; staff-space;
1916 (meta . ((class . Spanner)
1917 (interfaces . (volta-bracket-interface
1918 horizontal-bracket-interface
1921 side-position-interface
1933 (stencil . ,ly:line-spanner::print)
1934 (after-line-breaking . ,ly:line-spanner::after-line-breaking)
1935 (meta . ((class . Spanner)
1936 (interfaces . (line-spanner-interface
1942 (define (completize-grob-entry x)
1943 "Transplant assoc key into 'name entry of 'meta of X. Set interfaces for Item, Spanner etc.
1945 ;; (display (car x))
1947 (let* ((name-sym (car x))
1948 (grob-entry (cdr x))
1949 (meta-entry (cdr (assoc 'meta grob-entry)))
1950 (class (cdr (assoc 'class meta-entry)))
1952 (cdr (assoc 'interfaces meta-entry))))
1956 (set! ifaces-entry (cons 'item-interface ifaces-entry)))
1957 ((eq? 'Spanner class)
1958 (set! ifaces-entry (cons 'spanner-interface ifaces-entry)))
1959 ((eq? 'Paper_column class)
1960 (set! ifaces-entry (cons 'item-interface
1961 (cons 'paper-column-interface ifaces-entry))))
1962 ((eq? 'System class)
1963 (set! ifaces-entry (cons 'system-interface
1964 (cons 'spanner-interface ifaces-entry))))
1966 (ly:warning "Unknown class ~a" class)))
1967 (set! ifaces-entry (cons 'grob-interface ifaces-entry))
1969 (set! meta-entry (assoc-set! meta-entry 'name name-sym))
1970 (set! meta-entry (assoc-set! meta-entry 'interfaces
1972 (set! grob-entry (assoc-set! grob-entry 'meta meta-entry))
1973 (cons name-sym grob-entry)))
1975 (set! all-grob-descriptions (map completize-grob-entry all-grob-descriptions))
1977 ;; (display (map pair? all-grob-descriptions))
1979 ;; make sure that \property Foo.Bar =\turnOff doesn't complain
1982 ;; (display (car x)) (newline)
1984 (set-object-property! (car x) 'translation-type? list?)
1985 (set-object-property! (car x) 'is-grob? #t))
1986 all-grob-descriptions)
1988 (set! all-grob-descriptions (sort all-grob-descriptions alist<?))