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
222 (stencil . ,ly:enclosing-bracket::print)
223 (X-extent . ,ly:enclosing-bracket::width)
224 (edge-height . (0.2 . 0.2))
225 (meta . ((class . Item)
226 (interfaces . (enclosing-bracket-interface)) ))
228 (BassFigureContinuation
230 (stencil . ,ly:figured-bass-continuation::print)
231 (Y-offset . ,ly:figured-bass-continuation::center-on-figures)
232 (meta . ((class . Spanner)
233 (interfaces . (figured-bass-continuation-interface))
238 (Y-extent . ,ly:axis-group-interface::height)
239 (meta . ((class . Spanner)
240 (interfaces . (axis-group-interface
246 (threshold . (2 . 1000))
247 (positioning-done . ,ly:align-interface::calc-positioning-done)
248 (Y-extent . ,ly:axis-group-interface::height)
250 (meta . ((class . Spanner)
251 (interfaces . (align-interface
252 axis-group-interface))))))
256 ;; todo: clean this up a bit: the list is getting
259 (positions . ,(ly:make-simple-closure
260 (ly:make-simple-closure
261 (list chain-grob-member-functions
263 ly:beam::calc-least-squares-positions
264 ly:beam::slope-damping
265 ly:beam::shift-region-to-valid
269 ;; this is a hack to set stem lengths, if positions is set.
270 (quantized-positions . ,ly:beam::set-stem-lengths)
271 (concaveness . ,ly:beam::calc-concaveness)
272 (direction . ,ly:beam::calc-direction)
273 (shorten . ,ly:beam::calc-stem-shorten)
274 (beaming . ,ly:beam::calc-beaming)
275 (stencil . ,ly:beam::print)
277 ;; TODO: should be in SLT.
278 (thickness . 0.48) ; in staff-space
279 (neutral-direction . ,DOWN)
281 ;; Whe have some unreferenced problems here.
283 ;; If we shorten beamed stems less than normal stems (1 staff-space),
284 ;; or high order less than 8th beams, patterns like
285 ;; c''4 [c''8 c''] c''4 [c''16 c]
286 ;; are ugly (different stem lengths).
288 ;; But if we shorten 16th beams as much as 8th beams, a single
289 ;; forced 16th beam looks *very* short.
291 ;; We choose to shorten 8th beams the same as single stems,
292 ;; and high order beams less than 8th beams, so that all
293 ;; isolated shortened beams look nice and a bit shortened,
294 ;; sadly possibly breaking patterns with high order beams.
295 (beamed-stem-shorten . (1.0 0.5 0.25))
297 (auto-knee-gap . 5.5)
299 ;; only for debugging.
300 (font-family . roman)
301 (meta . ((class . Spanner)
302 (interfaces . (staff-symbol-referencer-interface
309 (positioning-done . ,ly:break-align-interface::calc-positioning-done)
310 (X-extent . ,ly:axis-group-interface::width)
311 (break-align-orders . ;; end of line
333 time-signature custos)
347 (meta . ((class . Item)
348 (interfaces . (break-alignment-interface
349 axis-group-interface))))))
354 (X-extent . ,ly:axis-group-interface::width)
355 (meta . ((class . Item)
356 (interfaces . (break-aligned-interface
357 axis-group-interface))))))
361 (break-align-symbol . breathing-sign)
364 (ambitus . (extra-space . 2.0))
365 (custos . (minimum-space . 1.0))
366 (key-signature . (minimum-space . 1.5))
367 (time-signature . (minimum-space . 1.5))
368 (staff-bar . (minimum-space . 1.5))
369 (clef . (minimum-space . 2.0))
370 (first-note . (fixed-space . 1.0)) ;huh?
371 (right-edge . (extra-space . 0.1))))
372 (stencil . ,ly:text-interface::print)
373 (text . ,(make-musicglyph-markup "scripts.rcomma"))
374 (Y-offset . ,ly:breathing-sign::offset-callback)
375 (break-visibility . ,begin-of-line-invisible)
376 (meta . ((class . Item)
377 (interfaces . (break-aligned-interface
378 breathing-sign-interface
384 (stencil . ,ly:clef::print)
385 (glyph-name . ,ly:clef::calc-glyph-name)
387 (font-family . music)
388 (break-align-symbol . clef)
389 (break-visibility . ,begin-of-line-visible)
390 (space-alist . ((ambitus . (extra-space . 2.0))
391 (staff-bar . (extra-space . 0.7))
392 (key-cancellation . (minimum-space . 3.5))
393 (key-signature . (minimum-space . 3.5))
394 (time-signature . (minimum-space . 4.2))
395 (first-note . (minimum-fixed-space . 5.0))
396 (next-note . (extra-space . 0.5))
397 (right-edge . (extra-space . 0.5))))
398 (Y-offset . ,ly:staff-symbol-referencer::callback)
399 (meta . ((class . Item)
400 (interfaces . (clef-interface
401 staff-symbol-referencer-interface
403 break-aligned-interface))))))
405 (ClusterSpannerBeacon
407 (Y-extent . ,ly:cluster-beacon::height)
408 (meta . ((class . Item)
409 (interfaces . (cluster-beacon-interface))))))
413 (springs-and-rods . ,ly:spanner::set-spacing-rods)
414 (stencil . ,ly:cluster::print)
415 (minimum-length . 0.0)
418 (meta . ((class . Spanner)
419 (interfaces . (cluster-interface))))))
423 (stencil . ,ly:text-interface::print)
424 (after-line-breaking . ,ly:chord-name::after-line-breaking)
428 (meta . ((class . Item)
429 (interfaces . (font-interface
430 rhythmic-grob-interface
437 (stencil . ,ly:text-interface::print)
438 (no-spacing-rods . #t)
439 (Y-offset . ,ly:side-position-interface::y-aligned-side)
440 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
443 (staff-padding . 0.5)
444 (script-priority . 200)
445 ;; todo: add X self alignment?
449 (meta . ((class . Item)
450 (interfaces . (text-script-interface
452 side-position-interface
457 (break-align-symbol . custos)
459 (stencil . ,ly:custos::print)
460 (break-visibility . ,end-of-line-visible)
462 (neutral-direction . ,DOWN)
463 (Y-offset . ,ly:staff-symbol-referencer::callback)
465 (first-note . (minimum-fixed-space . 0.0))
466 (right-edge . (extra-space . 0.1))))
467 (meta . ((class . Item)
470 staff-symbol-referencer-interface
472 break-aligned-interface))))))
478 (positioning-done . ,ly:dot-column::calc-positioning-done)
479 (X-extent . ,ly:axis-group-interface::width)
480 (X-offset . ,ly:dot-column::side-position)
481 (meta . ((class . Item)
482 (interfaces . (dot-column-interface
483 axis-group-interface))))))
487 (stencil . ,ly:dots::print)
489 (meta . ((class . Item)
490 (interfaces . (font-interface
491 staff-symbol-referencer-interface
496 (stencil . ,ly:percent-repeat-item-interface::double-percent)
499 (font-encoding . fetaMusic)
502 (break-align-symbol . staff-bar)
503 (break-visibility . ,begin-of-line-invisible)
504 (meta . ((class . Item)
505 (interfaces . (font-interface
506 break-aligned-interface
507 percent-repeat-interface))))))
509 (DoublePercentRepeatCounter
511 (stencil . ,ly:text-interface::print)
512 (X-offset . ,(ly:make-simple-closure `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-y-parent))
513 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
514 (Y-offset . ,ly:side-position-interface::y-aligned-side)
515 (font-encoding . fetaNumber)
516 (self-alignment-X . 0)
520 (staff-padding . 0.25)
522 (meta . ((class . Item)
523 (interfaces . (side-position-interface
524 self-alignment-interface
525 percent-repeat-interface
531 (Y-offset . ,ly:side-position-interface::y-aligned-side)
532 (staff-padding . 0.1)
534 (avoid-slur . outside)
536 (minimum-space . 1.2)
539 (Y-extent . ,ly:axis-group-interface::height)
540 (X-extent . ,ly:axis-group-interface::width)
541 (meta . ((class . Spanner)
542 (interfaces . (axis-group-interface
544 dynamic-line-spanner-interface
545 side-position-interface))))))
552 (stencil . ,ly:text-interface::print)
553 (direction . ,ly:script-interface::calc-direction)
555 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
556 (self-alignment-X . 0)
557 (Y-offset . ,ly:self-alignment-interface::y-aligned-on-self)
558 (self-alignment-Y . 0)
560 (font-encoding . fetaDynamic)
561 (font-shape . italic)
562 (avoid-slur . around)
563 (no-spacing-rods . #t)
564 (script-priority . 100)
565 (meta . ((class . Item)
566 (interfaces . (font-interface
568 self-alignment-interface
570 script-interface))))))
574 (stencil . ,ly:dynamic-text-spanner::print)
576 ;; rather ugh with NCSB
577 ;; (font-series . bold)
578 (font-shape . italic)
579 (style . dashed-line)
581 ;; need to blend with dynamic texts.
583 (bound-padding . 0.75)
584 (dash-fraction . 0.2)
586 (meta . ((class . Spanner)
587 (interfaces . (font-interface
590 dynamic-text-spanner-interface
591 spanner-interface))))))
596 ;; sync with TextScript (?)
599 (avoid-slur . around)
601 (staff-padding . 0.5)
602 (self-alignment-X . 0)
603 (self-alignment-Y . 0)
604 (script-priority . 100)
606 (stencil . ,ly:text-interface::print)
607 (direction . ,ly:script-interface::calc-direction)
609 (font-encoding . fetaNumber)
610 (font-size . -5) ; don't overlap when next to heads.
611 (meta . ((class . Item)
612 (interfaces . (finger-interface
614 text-script-interface
616 side-position-interface
617 self-alignment-interface
623 (zigzag-width . 0.75)
628 (stencil . ,ly:line-spanner::print)
629 (after-line-breaking . ,ly:line-spanner::after-line-breaking)
632 (meta . ((class . Spanner)
633 (interfaces . (line-interface
634 line-spanner-interface))))))
640 (meta . ((class . Item)
641 (interfaces . (grid-point-interface))))))
645 (X-extent . ,ly:grid-line-interface::width)
646 (stencil . ,ly:grid-line-interface::print)
647 (self-alignment-X . ,CENTER)
648 (X-offset . ,(ly:make-simple-closure
649 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-x-parent))
650 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
652 (meta . ((class . Item)
653 (interfaces . (self-alignment-interface
654 grid-line-interface))))))
658 (stencil . ,ly:hairpin::print)
659 (springs-and-rods . ,ly:spanner::set-spacing-rods)
660 (after-line-breaking . ,ly:hairpin::after-line-breaking)
663 (minimum-length . 2.0)
664 (bound-padding . 1.0)
665 (self-alignment-Y . 0)
666 (Y-offset . ,ly:self-alignment-interface::y-aligned-on-self)
667 (meta . ((class . Spanner)
668 (interfaces . (hairpin-interface
670 self-alignment-interface
672 spanner-interface))))))
677 (stencil . ,ly:horizontal-bracket::print)
678 (Y-offset . ,ly:side-position-interface::y-aligned-side)
680 (staff-padding . 0.2)
683 (bracket-flare . (0.5 . 0.5))
684 (meta . ((class . Spanner)
685 (interfaces . (horizontal-bracket-interface
686 side-position-interface
688 spanner-interface))))))
692 (stencil . ,ly:system-start-text::print)
693 (X-offset . ,ly:side-position-interface::x-aligned-side)
695 (self-alignment-Y . ,CENTER)
696 (meta . ((class . Spanner)
697 (interfaces . (system-start-text-interface
698 side-position-interface
703 (stencil . ,ly:key-signature-interface::print)
705 (time-signature . (extra-space . 1.25))
706 (staff-bar . (extra-space . 0.6))
707 (key-signature . (extra-space . 0.5))
708 (right-edge . (extra-space . 0.5))
709 (first-note . (fixed-space . 2.5))))
710 (Y-offset . ,ly:staff-symbol-referencer::callback)
711 (break-align-symbol . key-cancellation)
712 (break-visibility . ,begin-of-line-invisible)
714 (meta . ((class . Item)
715 (interfaces . (key-signature-interface
717 break-aligned-interface))))))
720 (stencil . ,ly:key-signature-interface::print)
722 (time-signature . (extra-space . 1.15))
723 (staff-bar . (extra-space . 1.1))
724 (right-edge . (extra-space . 0.5))
725 (first-note . (fixed-space . 2.5))))
726 (Y-offset . ,ly:staff-symbol-referencer::callback)
727 (break-align-symbol . key-signature)
728 (break-visibility . ,begin-of-line-visible)
730 (meta . ((class . Item)
731 (interfaces . (key-signature-interface
733 break-aligned-interface))))))
736 (stencil . ,ly:tie::print)
737 (control-points . ,ly:laissez-vibrer-tie::calc-control-points)
738 (direction . ,ly:laissez-vibrer-tie::calc-direction)
739 (details . ((ratio . 0.333)
740 (height-limit . 1.0)))
742 (meta . ((class . Item)
743 (interfaces . (laissez-vibrer-tie-interface))
747 (LaissezVibrerTieColumn
751 (positioning-done . ,ly:laissez-vibrer-tie-column::calc-positioning-done)
752 (meta . ((class . Item)
753 (interfaces . (laissez-vibrer-tie-column-interface))
759 (springs-and-rods . ,ly:ledger-line-spanner::set-spacing-rods)
761 (stencil . ,ly:ledger-line-spanner::print)
765 (minimum-length-fraction . 0.25)
766 (length-fraction . 0.25)
768 (meta . ((class . Spanner)
769 (interfaces . (ledger-line-interface))))))
773 (break-align-symbol . left-edge)
776 (break-visibility . ,center-invisible)
778 (custos . (extra-space . 0.0))
779 (ambitus . (extra-space . 2.0))
780 (time-signature . (extra-space . 1.0))
781 (staff-bar . (extra-space . 0.0))
782 (breathing-sign . (minimum-space . 0.0))
783 (clef . (extra-space . 0.8))
784 (first-note . (fixed-space . 2.0))
785 (right-edge . (extra-space . 0.0))
786 (key-signature . (extra-space . 0.0))
787 (key-cancellation . (extra-space . 0.0))
789 (meta . ((class . Item)
790 (interfaces . (break-aligned-interface))))))
794 ;; ugh. A ligature bracket is totally different from
799 (edge-height . (0.7 . 0.7))
800 (shorten-pair . (-0.2 . -0.2))
802 (positions . ,ly:tuplet-bracket::calc-positions)
803 (stencil . ,ly:tuplet-bracket::print)
804 (staff-padding . 0.25)
805 (connect-to-neighbor . ,ly:tuplet-bracket::calc-connect-to-neighbors)
806 (control-points . ,ly:tuplet-bracket::calc-control-points)
807 (meta . ((class . Spanner)
808 (interfaces . (line-interface
809 tuplet-bracket-interface))))))
817 (minimum-length . 0.3)
818 (minimum-distance . 0.1)
820 (springs-and-rods . ,ly:hyphen-spanner::set-spacing-rods)
822 (stencil . ,ly:hyphen-spanner::print)
825 (meta . ((class . Spanner)
826 (interfaces . (lyric-interface
828 lyric-hyphen-interface
829 spanner-interface))))))
834 (stencil . ,ly:lyric-extender::print)
836 (thickness . 0.8) ; line-thickness
837 (minimum-length . 1.5)
839 (meta . ((class . Spanner)
840 (interfaces . (lyric-interface
841 lyric-extender-interface))))))
844 . ((minimum-distance . 0.3)
845 (springs-and-rods . ,ly:hyphen-spanner::set-spacing-rods)
849 (meta . ((class . Spanner)
850 (interfaces . (spanner-interface
851 lyric-hyphen-interface spacing-interface))
856 (stencil . ,ly:text-interface::print)
857 (X-offset . ,ly:self-alignment-interface::aligned-on-x-parent)
858 (self-alignment-X . 0)
860 (font-series . bold-narrow)
862 (meta . ((class . Item)
863 (interfaces . (rhythmic-grob-interface
864 lyric-syllable-interface
865 self-alignment-interface
872 (Y-offset . ,ly:side-position-interface::y-aligned-side)
875 (stencil . ,ly:measure-grouping::print)
882 (meta . ((class . Spanner)
883 (interfaces . (side-position-interface
884 measure-grouping-interface))))))
888 (neutral-direction . ,DOWN)
889 (meta . ((class . Item)
890 (interfaces . (melody-spanner-interface spacing-interface))))))
895 (stencil . ,ly:mensural-ligature::print)
897 (meta . ((class . Spanner)
898 (interfaces . (mensural-ligature-interface
903 (stencil . ,ly:text-interface::print)
904 (Y-offset . ,ly:side-position-interface::y-aligned-side)
908 (meta . ((class . Item)
909 (interfaces . (text-interface
910 side-position-interface
912 metronome-mark-interface))))))
917 (stencil . ,ly:multi-measure-rest::print)
918 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
919 (Y-offset . ,ly:staff-symbol-referencer::callback)
922 (thick-thickness . 6.6)
923 (hair-thickness . 2.0)
925 (meta . ((class . Spanner)
926 (interfaces . (multi-measure-rest-interface
927 multi-measure-interface
930 staff-symbol-referencer-interface))))))
933 (MultiMeasureRestNumber
935 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
936 (stencil . ,ly:text-interface::print)
937 (X-offset . ,(ly:make-simple-closure
938 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self))
939 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent)))))
940 (Y-offset . ,ly:side-position-interface::y-aligned-side)
943 (self-alignment-X . 0)
946 (staff-padding . 0.4)
947 (font-encoding . fetaNumber)
948 (meta . ((class . Spanner)
949 (interfaces . (side-position-interface
950 multi-measure-interface
951 self-alignment-interface
956 (MultiMeasureRestText
958 (stencil . ,ly:text-interface::print)
959 (X-offset . ,(ly:make-simple-closure
960 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent))
961 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
963 (Y-offset . ,ly:side-position-interface::y-aligned-side)
964 (self-alignment-X . 0)
967 (staff-padding . 0.25)
968 (meta . ((class . Spanner)
969 (interfaces . (side-position-interface
970 multi-measure-interface
971 self-alignment-interface
979 (X-extent . ,ly:axis-group-interface::width)
980 (Y-extent . ,ly:axis-group-interface::height)
981 (positioning-done . ,ly:note-collision-interface::calc-positioning-done)
983 (meta . ((class . Item)
984 (interfaces . (note-collision-interface
985 axis-group-interface))))))
990 (X-extent . ,ly:axis-group-interface::width)
991 (Y-extent . ,ly:axis-group-interface::height)
993 (meta . ((class . Item)
994 (interfaces . (axis-group-interface
995 note-column-interface))))))
1000 (stencil . ,ly:note-head::print)
1001 (stem-attachment . ,ly:note-head::calc-stem-attachment)
1002 (glyph-name . ,note-head::calc-glyph-name)
1003 (Y-offset . ,ly:staff-symbol-referencer::callback)
1004 (X-offset . ,ly:note-head::stem-x-shift)
1005 (meta . ((class . Item)
1006 (interfaces . (rhythmic-grob-interface
1007 rhythmic-head-interface
1011 staff-symbol-referencer-interface))))))
1015 (stem-spacing-correction . 0.5)
1016 (same-direction-correction . 0.25)
1017 ;; Changed this from 0.75.
1018 ;; If you ever change this back, please document! --hwn
1019 (knee-spacing-correction . 1.0)
1021 (meta . ((class . Item)
1022 (interfaces . (spacing-interface
1023 note-spacing-interface))))))
1028 (stencil . ,ly:text-interface::print)
1030 (meta . ((class . Item)
1031 (interfaces . (note-name-interface
1033 font-interface))))))
1037 (self-alignment-X . 0)
1038 (break-visibility . ,begin-of-line-visible)
1039 (X-offset . ,(ly:make-simple-closure
1040 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self))
1041 ,(ly:make-simple-closure (list ly:self-alignment-interface::centered-on-x-parent)))))
1043 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1045 (stencil . ,ly:text-interface::print)
1048 ;; no Y dimensions, because of lyrics under tenor clef.
1049 (Y-extent . (0 . 0))
1050 (font-shape . italic)
1052 (staff-padding . 0.2)
1054 (meta . ((class . Item)
1055 (interfaces . (text-interface
1056 self-alignment-interface
1057 side-position-interface
1058 font-interface))))))
1062 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1064 (stencil . ,ly:ottava-bracket::print)
1066 (font-shape . italic)
1067 (shorten-pair . (0.0 . -0.6))
1068 (staff-padding . 1.0)
1070 (minimum-length . 1.0)
1071 (dash-fraction . 0.3)
1072 (edge-height . (0 . 1.2))
1074 (meta . ((class . Spanner)
1075 (interfaces . (ottava-bracket-interface
1076 horizontal-bracket-interface
1078 side-position-interface
1080 text-interface))))))
1086 (before-line-breaking . ,ly:paper-column::before-line-breaking)
1087 ;; (stencil . ,ly:paper-column::print)
1088 (X-extent . ,ly:axis-group-interface::width)
1092 ;; (font-size . -6) (font-name . "sans") (Y-extent . #f)
1093 (meta . ((class . Paper_column)
1094 (interfaces . (paper-column-interface
1095 axis-group-interface
1096 spaceable-grob-interface))))))
1100 (stencil . ,parentheses-item::print)
1103 (meta . ((class . Item)
1104 (interfaces . (parentheses-interface font-interface))))
1108 . ((details . ,default-slur-details)
1110 (control-points . ,ly:slur::calc-control-points)
1111 (direction . ,ly:slur::calc-direction)
1112 (springs-and-rods . ,ly:spanner::set-spacing-rods)
1113 (Y-extent . ,ly:slur::height)
1114 (stencil . ,ly:slur::print)
1118 (minimum-length . 1.5)
1119 (height-limit . 2.0)
1121 (meta . ((class . Spanner)
1122 (interfaces . (slur-interface))))))
1124 (NonMusicalPaperColumn
1128 (before-line-breaking . ,ly:paper-column::before-line-breaking)
1129 (X-extent . ,ly:axis-group-interface::width)
1130 ;; (stencil . ,ly:paper-column::print)
1134 ;; debugging stuff: print column number.
1135 ;; (font-size . -6) (font-name . "sans") (Y-extent . #f)
1137 (meta . ((class . Paper_column)
1138 (interfaces . (paper-column-interface
1139 axis-group-interface
1140 spaceable-grob-interface))))))
1145 (springs-and-rods . ,ly:multi-measure-rest::set-spacing-rods)
1146 (stencil . ,ly:multi-measure-rest::percent)
1150 (font-encoding . fetaMusic)
1151 (meta . ((class . Spanner)
1152 (interfaces . (multi-measure-rest-interface
1154 percent-repeat-interface))))))
1155 (PercentRepeatCounter
1157 (stencil . ,ly:text-interface::print)
1158 (X-offset . ,(ly:make-simple-closure
1159 `(,+ ,(ly:make-simple-closure (list ly:self-alignment-interface::x-centered-on-y-parent))
1160 ,(ly:make-simple-closure (list ly:self-alignment-interface::x-aligned-on-self)))))
1161 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1162 (self-alignment-X . 0)
1165 (staff-padding . 0.25)
1167 (font-encoding . fetaNumber)
1168 (meta . ((class . Spanner)
1169 (interfaces . (side-position-interface
1170 self-alignment-interface
1171 percent-repeat-interface
1173 text-interface))))))
1175 ;; an example of a text spanner
1179 (stencil . ,ly:piano-pedal-bracket::print)
1182 (bound-padding . 1.0)
1184 (bracket-flare . (0.5 . 0.5))
1185 (edge-height . (1.0 . 1.0))
1186 (shorten-pair . (0.0 . 0.0))
1188 (meta . ((class . Spanner)
1189 (interfaces . (line-interface
1190 piano-pedal-interface
1191 piano-pedal-bracket-interface))))))
1195 (stencil . ,ly:text-interface::print)
1196 (X-offset . ,(ly:make-simple-closure
1197 `(,+ ,(ly:make-simple-closure
1198 `(,ly:self-alignment-interface::x-aligned-on-self))
1199 ,(ly:make-simple-closure
1200 `(,ly:self-alignment-interface::centered-on-x-parent)))
1202 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1203 (self-alignment-X . 0)
1208 (break-visibility . ,end-of-line-invisible)
1210 (meta . ((class . Item)
1211 (interfaces . (text-interface
1212 side-position-interface
1215 self-alignment-interface))))))
1220 (stencil . ,ly:percent-repeat-item-interface::beat-slash)
1223 (meta . ((class . Item)
1224 (interfaces . (percent-repeat-interface))))))
1227 (stencil . ,ly:rest::print)
1228 (X-extent . ,ly:rest::width)
1229 (Y-extent . ,ly:rest::height)
1230 (Y-offset . ,ly:rest::y-offset-callback)
1231 (minimum-distance . 0.25)
1232 (meta . ((class . Item)
1233 (interfaces . (font-interface
1234 rhythmic-head-interface
1235 rhythmic-grob-interface
1236 staff-symbol-referencer-interface
1237 rest-interface))))))
1241 (minimum-distance . 0.75)
1242 (positioning-done . ,ly:rest-collision::calc-positioning-done)
1244 (meta . ((class . Item)
1245 (interfaces . (rest-collision-interface))))))
1249 ;; don't set direction here: it breaks staccato.
1251 ;; This value is sensitive: if too large, staccato dots will move a
1254 (staff-padding . 0.25)
1255 ;; (script-priority . 0) priorities for scripts, see script.scm
1256 (X-offset . , ly:self-alignment-interface::centered-on-x-parent)
1259 (stencil . ,ly:script-interface::print)
1260 (direction . ,ly:script-interface::calc-direction)
1262 (font-encoding . fetaMusic)
1263 (meta . ((class . Item)
1264 (interfaces . (script-interface
1265 side-position-interface
1266 font-interface))))))
1271 (before-line-breaking . ,ly:script-column::before-line-breaking)
1273 (meta . ((class . Item)
1274 (interfaces . (script-column-interface))))))
1280 (meta . ((class . Item)
1281 (interfaces . (spacing-interface
1282 separation-item-interface))))))
1284 (SeparatingGroupSpanner
1287 (springs-and-rods . ,ly:separating-group-spanner::set-spacing-rods)
1289 (meta . ((class . Spanner)
1290 (interfaces . (only-prebreak-interface
1292 separation-spanner-interface))))))
1295 . ((details . ,default-slur-details)
1297 (control-points . ,ly:slur::calc-control-points)
1298 (direction . ,ly:slur::calc-direction)
1299 (springs-and-rods . ,ly:spanner::set-spacing-rods)
1300 (Y-extent . ,ly:slur::height)
1301 (stencil . ,ly:slur::print)
1304 (line-thickness . 0.8)
1305 (minimum-length . 1.5)
1307 (height-limit . 2.0)
1309 (meta . ((class . Spanner)
1310 (interfaces . (slur-interface))))))
1315 (springs-and-rods . ,ly:spacing-spanner::set-springs)
1316 (average-spacing-wishes . #t)
1317 (grace-space-factor . 0.6)
1318 (shortest-duration-space . 2.0)
1319 (spacing-increment . 1.2)
1320 (base-shortest-duration . ,(ly:make-moment 3 16))
1321 (meta . ((class . Spanner)
1322 (interfaces . (spacing-interface
1323 spacing-spanner-interface))))))
1327 (break-align-symbol . staff-bar)
1332 (stencil . ,ly:span-bar::print)
1333 (bar-size . ,ly:span-bar::calc-bar-size)
1334 (X-extent . ,ly:span-bar::width)
1335 (glyph-name . ,ly:span-bar::calc-glyph-name)
1336 (before-line-breaking . ,ly:span-bar::before-line-breaking)
1341 ;; Ross. page 151 lists other values, we opt for a leaner look
1345 (hair-thickness . 1.6)
1346 (thick-thickness . 6.0)
1347 (meta . ((class . Item)
1348 (interfaces . (span-bar-interface
1350 bar-line-interface))))))
1354 (stencil . ,ly:text-interface::print)
1356 (font-series . bold)
1358 (X-offset . ,ly:side-position-interface::x-aligned-side)
1361 (meta . ((class . Item)
1362 (interfaces . (side-position-interface
1363 stanza-number-interface
1365 font-interface))))))
1370 (stencil . ,print-circled-text-callback)
1373 (staff-padding . 0.5)
1374 (self-alignment-X . 0)
1375 (self-alignment-Y . 0)
1376 (script-priority . 100)
1377 (font-encoding . fetaNumber)
1378 (font-size . -5) ; don't overlap when next to heads.
1379 (meta . ((class . Item)
1380 (interfaces . (string-number-interface
1382 text-script-interface
1384 side-position-interface
1385 self-alignment-interface
1386 item-interface))))))
1391 (stem-spacing-correction . 0.4)
1392 (meta . ((class . Item)
1393 (interfaces . (spacing-interface
1394 staff-spacing-interface))))))
1399 (stencil . ,ly:text-interface::print)
1401 (direction . ,RIGHT)
1402 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1403 (no-spacing-rods . #t)
1404 (padding . 0.0) ;; padding relative to SostenutoPedalLineSpanner
1405 (font-shape . italic)
1406 (self-alignment-X . 0)
1407 (meta . ((class . Item)
1408 (interfaces . (text-interface
1409 self-alignment-interface
1410 font-interface))))))
1412 (SostenutoPedalLineSpanner
1416 (X-extent . ,ly:axis-group-interface::height)
1418 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1422 (minimum-space . 1.0)
1424 (meta . ((class . Spanner)
1425 (interfaces . (piano-pedal-interface
1426 axis-group-interface
1427 side-position-interface))))))
1431 (Y-extent . ,ly:staff-symbol::height)
1432 (stencil . ,ly:staff-symbol::print)
1434 (ledger-line-thickness . (1.0 . 0.1))
1436 (meta . ((class . Spanner)
1437 (interfaces . (staff-symbol-interface))))))
1441 (direction . ,ly:stem::calc-direction)
1442 (default-direction . ,ly:stem::calc-default-direction)
1443 (stem-end-position . ,ly:stem::calc-stem-end-position)
1444 (stem-info . ,ly:stem::calc-stem-info)
1445 (positioning-done . ,ly:stem::calc-positioning-done)
1446 (stencil . ,ly:stem::print)
1447 (X-extent . ,ly:stem::width)
1448 (Y-extent . ,ly:stem::height)
1449 (length . ,ly:stem::calc-length)
1455 ;; 3.5 (or 3 measured from note head) is standard length
1456 ;; 32nd, 64th flagged stems should be longer
1457 (lengths . (3.5 3.5 3.5 4.5 5.0))
1459 ;; FIXME. 3.5 yields too long beams (according to Ross and
1460 ;; looking at Baerenreiter examples) for a number of common
1461 ;; boundary cases. Subtracting half a beam thickness fixes
1462 ;; this, but the bug may well be somewhere else.
1464 ;; FIXME this should come from 'lengths
1465 (beamed-lengths . (3.26 3.5 3.6))
1467 ;; The 'normal' minima
1468 (beamed-minimum-free-lengths . (1.83 1.5 1.25))
1469 ;(beamed-minimum-free-lengths . (2.0 1.83 1.25))
1471 ;; The 'extreme case' minima
1472 (beamed-extreme-minimum-free-lengths . (2.0 1.25))
1474 ;; Stems in unnatural (forced) direction should be shortened by
1475 ;; one staff space, according to [Roush & Gourlay].
1476 ;; Flagged stems we shorten only half a staff space.
1477 (stem-shorten . (1.0 0.5))
1482 ;; default stem direction for note on middle line
1483 (neutral-direction . ,DOWN)
1485 ;; We use the normal minima as minimum for the ideal lengths,
1486 ;; and the extreme minima as abolute minimum length.
1488 (X-offset . ,ly:stem::offset-callback)
1489 (Y-offset . ,ly:staff-symbol-referencer::callback)
1490 (meta . ((class . Item)
1491 (interfaces . (stem-interface
1492 font-interface))))))
1496 (Y-extent . ,ly:stem-tremolo::height)
1497 (stencil . ,ly:stem-tremolo::print)
1499 (slope . ,ly:stem-tremolo::calc-slope)
1500 (beam-width . 1.6) ; staff-space
1501 (beam-thickness . 0.48) ; staff-space
1502 (meta . ((class . Item)
1503 (interfaces . (stem-tremolo-interface))))))
1507 (no-spacing-rods . #t)
1508 (stencil . ,ly:sustain-pedal::print)
1509 (self-alignment-X . 0)
1510 (direction . ,RIGHT)
1511 (padding . 0.0) ;; padding relative to SustainPedalLineSpanner
1512 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1513 (meta . ((class . Item)
1514 (interfaces . (piano-pedal-interface
1515 text-spanner-interface
1517 self-alignment-interface
1518 font-interface))))))
1520 (SustainPedalLineSpanner
1523 (X-extent . ,ly:axis-group-interface::height)
1524 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1527 (staff-padding . 1.2)
1528 (minimum-space . 1.0)
1530 (meta . ((class . Spanner)
1531 (interfaces . (piano-pedal-interface
1532 axis-group-interface
1533 side-position-interface))))))
1538 (X-extent . ,ly:axis-group-interface::width)
1539 (Y-extent . ,ly:axis-group-interface::height)
1540 (meta . ((class . System)
1541 (interfaces . (system-interface
1542 axis-group-interface))))))
1548 (stencil . ,ly:system-start-delimiter::print)
1549 (collapse-height . 5.0)
1550 (X-offset . ,ly:side-position-interface::x-aligned-side)
1552 (font-encoding . fetaBraces)
1554 (meta . ((class . Spanner)
1555 (interfaces . (system-start-delimiter-interface
1556 side-position-interface
1557 font-interface))))))
1563 (X-offset . ,ly:side-position-interface::x-aligned-side)
1565 (stencil . ,ly:system-start-delimiter::print)
1566 (style . line-bracket)
1568 (meta . ((class . Spanner)
1569 (interfaces . (font-interface
1570 side-position-interface
1571 system-start-delimiter-interface))))))
1576 (X-offset . ,ly:side-position-interface::x-aligned-side)
1578 (stencil . ,ly:system-start-delimiter::print)
1580 (collapse-height . 5.0)
1582 (meta . ((class . Spanner)
1583 (interfaces . (font-interface
1584 side-position-interface
1585 system-start-delimiter-interface))))))
1591 (X-offset . ,ly:side-position-interface::x-aligned-side)
1595 (stencil . ,ly:system-start-delimiter::print)
1596 (meta . ((class . Spanner)
1597 (interfaces . (side-position-interface
1598 system-start-delimiter-interface))))))
1604 (stencil . ,ly:text-interface::print)
1605 (Y-offset . ,ly:staff-symbol-referencer::callback)
1607 (stem-attachment . (1.0 . 1.35))
1608 (font-series . bold)
1609 (meta . ((class . Item)
1611 . (rhythmic-head-interface
1612 font-interface rhythmic-grob-interface
1614 staff-symbol-referencer-interface
1615 text-interface))))))
1619 (no-spacing-rods . #t)
1620 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1623 ;; sync with Fingering ?
1625 (staff-padding . 0.5)
1627 (stencil . ,ly:text-interface::print)
1628 (direction . ,ly:script-interface::calc-direction)
1630 (avoid-slur . around)
1631 (slur-padding . 0.5)
1632 (script-priority . 200)
1633 ;; todo: add X self alignment?
1634 (meta . ((class . Item)
1635 (interfaces . (text-script-interface
1637 side-position-interface
1638 font-interface))))))
1642 (stencil . ,ly:text-spanner::print)
1643 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1644 (font-shape . italic)
1645 (style . dashed-line)
1646 (staff-padding . 0.8)
1647 (dash-fraction . 0.2)
1651 (meta . ((class . Spanner)
1652 (interfaces . (text-spanner-interface
1653 side-position-interface
1654 font-interface))))))
1658 (control-points . ,ly:tie::calc-control-points)
1659 (avoid-slur . inside)
1660 (direction . ,ly:tie::calc-direction)
1661 (stencil . ,ly:tie::print)
1663 ;; for a full list, see tie-helper.cc
1665 (center-staff-line-clearance . 0.6)
1666 (tip-staff-line-clearance . 0.45)
1667 (note-head-gap . 0.2)
1669 (height-limit . 1.0)
1670 (horizontal-distance-penalty-factor . 10)
1671 (tie-tie-collision-distance . 0.45)
1672 (tie-tie-collision-penalty . 25.0)
1673 (intra-space-threshold . 1.25)
1674 (outer-tie-vertical-distance-symmetry-penalty-factor . 10)
1675 (outer-tie-length-symmetry-penalty-factor . 10)
1676 (between-length-limit . 1.0)))
1678 (line-thickness . 0.8)
1679 (meta . ((class . Spanner)
1680 (interfaces . (tie-interface))))
1685 (positioning-done . ,ly:tie-column::calc-positioning-done)
1686 (before-line-breaking . ,ly:tie-column::before-line-breaking)
1689 (meta . ((class . Spanner)
1690 (interfaces . (tie-column-interface))))))
1694 (stencil . ,ly:time-signature::print)
1695 (break-align-symbol . time-signature)
1696 (break-visibility . ,all-visible)
1698 (first-note . (fixed-space . 2.0))
1699 (right-edge . (extra-space . 0.5))
1700 (staff-bar . (minimum-space . 2.0))))
1703 (meta . ((class . Item)
1704 (interfaces . (time-signature-interface
1705 break-aligned-interface
1706 font-interface))))))
1710 (stencil . ,ly:dynamic-text-spanner::print)
1711 (edge-text . ,(cons (make-musicglyph-markup "scripts.trill")
1714 (staff-padding . 1.0)
1717 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1719 (meta . ((class . Spanner)
1720 (interfaces . (text-spanner-interface
1721 side-position-interface
1722 font-interface))))))
1724 (TrillPitchAccidental
1725 . ((X-offset . ,ly:side-position-interface::x-aligned-side)
1730 (stencil . ,ly:accidental-interface::print)
1731 (meta . ((class . Item)
1732 (interfaces . (item-interface
1733 accidental-interface
1734 side-position-interface
1735 font-interface))))))
1738 . ((X-offset . ,ly:side-position-interface::x-aligned-side)
1741 (stencil . ,parenthesize-elements)
1742 (direction . ,RIGHT)
1745 (meta . ((class . Item)
1746 (interfaces . (side-position-interface
1748 rhythmic-head-interface
1750 accidental-interface
1751 axis-group-interface))))))
1755 (stencil . ,ly:note-head::print)
1757 (Y-offset . ,ly:staff-symbol-referencer::callback)
1759 (meta . ((class . Item)
1760 (interfaces . (item-interface
1761 rhythmic-head-interface
1763 pitched-trill-interface
1765 staff-symbol-referencer-interface))))))
1771 (edge-height . (0.7 . 0.7))
1772 (shorten-pair . (-0.2 . -0.2))
1773 (staff-padding . 0.25)
1775 (direction . ,ly:tuplet-bracket::calc-direction)
1776 (positions . ,ly:tuplet-bracket::calc-positions)
1777 (connect-to-neighbor . ,ly:tuplet-bracket::calc-connect-to-neighbors)
1778 (control-points . ,ly:tuplet-bracket::calc-control-points)
1779 (stencil . ,ly:tuplet-bracket::print)
1781 (meta . ((class . Spanner)
1782 (interfaces . (line-interface
1783 tuplet-bracket-interface))))))
1787 (stencil . ,ly:tuplet-number::print)
1788 (font-shape . italic)
1790 (avoid-slur . inside)
1791 (meta . ((class . Spanner)
1792 (interfaces . (text-interface tuplet-number-interface
1793 font-interface))))))
1797 (stencil . ,ly:text-interface::print)
1798 (font-shape . italic)
1799 (no-spacing-rods . #t)
1800 (self-alignment-X . 0)
1801 (direction . ,RIGHT)
1802 (padding . 0.0) ;; padding relative to UnaCordaPedalLineSpanner
1803 (X-offset . ,ly:self-alignment-interface::x-aligned-on-self)
1804 (meta . ((class . Item)
1805 (interfaces . (text-interface
1806 self-alignment-interface
1807 font-interface))))))
1809 (UnaCordaPedalLineSpanner
1812 (X-extent . ,ly:axis-group-interface::height)
1813 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1816 (staff-padding . 1.2)
1817 (minimum-space . 1.0)
1819 (meta . ((class . Spanner)
1820 (interfaces . (piano-pedal-interface
1821 axis-group-interface
1822 side-position-interface))))))
1828 (stencil . ,ly:vaticana-ligature::print)
1829 (meta . ((class . Spanner)
1830 (interfaces . (vaticana-ligature-interface
1831 font-interface))))))
1836 (positioning-done . ,ly:align-interface::calc-positioning-done)
1837 (after-line-breaking . ,ly:align-interface::stretch-after-break)
1838 (Y-extent . ,ly:axis-group-interface::height)
1839 (X-extent . ,ly:axis-group-interface::width)
1841 (meta . ((class . Spanner)
1842 (interfaces . (align-interface
1843 axis-group-interface))))))
1847 (Y-offset . ,ly:hara-kiri-group-spanner::force-hara-kiri-callback)
1849 (Y-extent . ,ly:hara-kiri-group-spanner::y-extent)
1850 (X-extent . ,ly:axis-group-interface::width)
1851 (meta . ((class . Spanner)
1852 (interfaces . (axis-group-interface
1853 hara-kiri-group-interface
1854 vertically-spaceable-interface))))))
1859 (stencil . ,ly:volta-bracket-interface::print)
1860 (after-line-breaking . ,ly:volta-bracket-interface::after-line-breaking)
1863 (font-encoding . fetaNumber)
1864 (Y-offset . ,ly:side-position-interface::y-aligned-side)
1866 (thickness . 1.6) ;; line-thickness
1867 (edge-height . (2.0 . 2.0)) ;; staff-space;
1870 (meta . ((class . Spanner)
1871 (interfaces . (volta-bracket-interface
1872 horizontal-bracket-interface
1875 side-position-interface
1887 (stencil . ,ly:line-spanner::print)
1888 (after-line-breaking . ,ly:line-spanner::after-line-breaking)
1889 (meta . ((class . Spanner)
1890 (interfaces . (line-spanner-interface
1896 (define (completize-grob-entry x)
1897 "Transplant assoc key into 'name entry of 'meta of X. Set interfaces for Item, Spanner etc.
1899 ;; (display (car x))
1901 (let* ((name-sym (car x))
1902 (grob-entry (cdr x))
1903 (meta-entry (cdr (assoc 'meta grob-entry)))
1904 (class (cdr (assoc 'class meta-entry)))
1906 (cdr (assoc 'interfaces meta-entry))))
1910 (set! ifaces-entry (cons 'item-interface ifaces-entry)))
1911 ((eq? 'Spanner class)
1912 (set! ifaces-entry (cons 'spanner-interface ifaces-entry)))
1913 ((eq? 'Paper_column class)
1914 (set! ifaces-entry (cons 'item-interface
1915 (cons 'paper-column-interface ifaces-entry))))
1916 ((eq? 'System class)
1917 (set! ifaces-entry (cons 'system-interface
1918 (cons 'spanner-interface ifaces-entry))))
1920 (ly:warning "Unknown class ~a" class)))
1921 (set! ifaces-entry (cons 'grob-interface ifaces-entry))
1923 (set! meta-entry (assoc-set! meta-entry 'name name-sym))
1924 (set! meta-entry (assoc-set! meta-entry 'interfaces
1926 (set! grob-entry (assoc-set! grob-entry 'meta meta-entry))
1927 (cons name-sym grob-entry)))
1929 (set! all-grob-descriptions (map completize-grob-entry all-grob-descriptions))
1931 ;; (display (map pair? all-grob-descriptions))
1933 ;; make sure that \property Foo.Bar =\turnOff doesn't complain
1936 ;; (display (car x)) (newline)
1938 (set-object-property! (car x) 'translation-type? list?)
1939 (set-object-property! (car x) 'is-grob? #t))
1940 all-grob-descriptions)
1942 (set! all-grob-descriptions (sort all-grob-descriptions alist<?))