1 ;;;; grob-description.scm -- part of generated backend documentation
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--20.301 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
8 ; distances are given in stafflinethickness (thicknesses) and
9 ; staffspace (distances)
11 ;;; WARNING: the meta field should be the last one.
13 ;; TODO: junk the meta field in favor of something more compact?
14 (define all-grob-descriptions
18 (molecule-callback . ,Local_key_item::brew_molecule)
19 (X-offset-callbacks . (,Side_position_interface::aligned_side))
20 (after-line-breaking-callback . ,Local_key_item::after_line_breaking)
24 (paren-cautionaries . #t)
26 (meta . ,(grob-description accidentals-interface font-interface side-position-interface))
31 (X-extent-callback . ,Arpeggio::width_callback)
32 (Y-extent-callback . #f)
33 (molecule-callback . ,Arpeggio::brew_molecule)
34 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
35 (X-offset-callbacks . (,Side_position_interface::aligned_side))
37 (staff-position . 0.0)
38 (meta . ,(grob-description arpeggio-interface side-position-interface font-interface))
43 (break-align-symbol . staff-bar)
45 (break-glyph-function . ,default-break-barline)
46 (bar-size-procedure . ,Bar_line::get_staff_bar_size)
47 (molecule-callback . ,Bar_line::brew_molecule)
48 (visibility-lambda . ,all-visible)
50 (before-line-breaking-callback . ,Bar_line::before_line_breaking)
52 (time-signature . (extra-space . 0.75))
53 (custos . (minimum-space . 2.0))
54 (clef . (minimum-space . 1.0))
55 (begin-of-note . (extra-space . 1.3))
59 ;; Ross. page 151 lists other values, we opt for a leaner look
63 (hair-thickness . 1.6)
64 (thick-thickness . 6.0)
65 (meta . ,(grob-description bar-line-interface font-interface))
71 (molecule-callback . ,Text_item::brew_molecule)
73 (visibility-lambda . ,begin-of-line-visible)
77 (font-relative-size . -1)
78 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
79 (meta . ,(grob-description
80 side-position-interface
81 text-interface font-interface break-aligned-interface))
86 (molecule-callback . ,brew-bass-figure)
87 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
89 (font-family . number)
90 (font-relative-size . -1)
94 (meta . ,(grob-description text-interface font-interface ))
98 ;; todo: clean this up a bit: the list is getting
100 (molecule-callback . ,Beam::brew_molecule)
101 (concaveness-threshold . 0.08)
102 (positions . (#f . #f))
103 (position-callbacks . (,Beam::least_squares
109 (thickness . 0.48) ; in staff-space
110 (before-line-breaking-callback . ,Beam::before_line_breaking)
111 (after-line-breaking-callback . (,Beam::after_line_breaking
112 ,Beam::end_after_line_breaking))
113 (neutral-direction . -1)
114 (dir-function . ,beam-dir-majority)
115 (left-position-quant-function . ,default-left-beam-pos-quants)
116 (right-position-quant-function . ,default-right-beam-pos-quants)
117 (beamed-stem-shorten . (1.0 0.5))
118 (outer-stem-length-limit . 0.2)
120 (flag-width-function . ,default-beam-flag-width-function)
121 (space-function . ,default-beam-space-function)
124 (font-name . "cmr10")
125 (quant-score-functions . (,Beam::score_forbidden_quants
126 ,Beam::score_slopes_dy
127 ,Beam::score_stem_lengths
129 (meta . ,(grob-description beam-interface))
137 (meta . ,(grob-description
146 (X-offset-callbacks . (,Break_align_interface::alignment_callback))
148 (meta . ,(grob-description axis-group-interface))
153 (break-align-symbol . breathing-sign)
156 (key-signature . (minimum-space . 1.5))
157 (staff-bar . (minimum-space . 1.5))
158 (clef . (minimum-space . 2.0))
159 (begin-of-note . (minimum-space . 1.0))
161 (molecule-callback . ,Text_item::brew_molecule)
163 (font-family . music)
164 (text . "scripts-rcomma")
165 (Y-offset-callbacks . (,Breathing_sign::offset_callback))
166 (visibility-lambda . ,begin-of-line-invisible)
167 (meta . ,(grob-description break-aligned-interface text-interface font-interface))
172 (molecule-callback . ,Clef::brew_molecule)
173 (before-line-breaking-callback . ,Clef::before_line_breaking)
175 (font-family . music)
176 (break-align-symbol . clef)
177 (visibility-lambda . ,begin-of-line-visible)
179 (staff-bar . (minimum-space . 3.7))
180 (key-signature . (minimum-space . 4.0))
181 (time-signature . (minimum-space . 4.2))
182 (begin-of-note . (minimum-space . 5.0))
184 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
185 (meta . ,(grob-description clef-interface font-interface break-aligned-interface ))
190 (molecule-callback . ,Chord_name::brew_molecule)
191 (after-line-breaking-callback . ,Chord_name::after_line_breaking)
192 (chord-name-function . ,default-chord-name-function)
193 (font-family . roman)
194 (meta . ,(grob-description font-interface text-interface chord-name-interface))
199 (break-align-symbol . custos)
201 (molecule-callback . ,Custos::brew_molecule)
202 (visibility-lambda . ,end-of-line-visible)
204 (neutral-position . 0)
205 (neutral-direction . -1)
206 (adjust-if-on-staffline . #t)
207 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
208 (font-family . music)
210 (begin-of-note . (minimum-space . 0.0))
212 (meta . ,(grob-description custos-interface staff-symbol-referencer-interface break-aligned-interface) )
220 (X-extent-callback . ,Axis_group_interface::group_extent_callback)
222 (X-offset-callbacks . (,Dot_column::side_position))
223 (meta . ,(grob-description dot-column-interface axis-group-interface))
228 (molecule-callback . ,Dots::brew_molecule)
230 (staff-position . 0.0)
231 (Y-offset-callbacks . (,Dots::quantised_position_callback ,Staff_symbol_referencer::callback))
232 (meta . ,(grob-description font-interface dots-interface ))
235 (DoublePercentRepeat .
237 (molecule-callback . ,Percent_repeat_item_interface::double_percent)
240 (font-family . music)
243 (break-align-symbol . staff-bar)
244 (visibility-lambda . ,begin-of-line-invisible)
245 (meta . ,(grob-description font-interface percent-repeat-interface))
250 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
251 (molecule-callback . ,Text_item::brew_molecule)
252 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
253 (self-alignment-X . 0)
255 (no-spacing-rods . #t)
256 (script-priority . 100)
258 (font-family . dynamic)
259 (font-shape . italic)
260 (self-alignment-Y . 0)
261 (meta . ,(grob-description font-interface text-interface dynamic-interface))
268 (minimum-space . 1.2)
270 (meta . ,(grob-description dynamic-interface axis-group-interface side-position-interface))
275 (break-align-symbol . left-edge)
276 (X-offset-callbacks . (,Break_align_interface::alignment_callback))
277 (X-extent-callback . ,Grob::point_dimension_callback)
280 (time-signature . (extra-space . 0.0))
281 (staff-bar . (extra-space . 0.0))
282 (breathing-sign . (minimum-space . 0.0))
283 (clef . (extra-space . 1.0))
284 (begin-of-note . (extra-space . 0.0))
285 (key-signature . (extra-space . 0.0))
287 (meta . ,(grob-description break-aligned-interface))
292 (molecule-callback . ,Text_item::brew_molecule)
293 (X-offset-callbacks . (,Side_position_interface::centered_on_parent
294 ,Side_position_interface::aligned_on_self))
297 (self-alignment-X . 0)
298 (self-alignment-Y . 0)
299 (font-family . number)
300 (font-relative-size . -3)
301 (font-shape . upright)
302 (meta . ,(grob-description finger-interface font-interface
303 text-script-interface text-interface side-position-interface))
307 (HaraKiriVerticalGroup
309 (Y-offset-callbacks . (,Hara_kiri_group_spanner::force_hara_kiri_callback))
310 (Y-extent-callback . ,Hara_kiri_group_spanner::y_extent)
312 (meta . ,(grob-description axis-group-interface hara-kiri-group-interface))
317 (molecule-callback . ,Hairpin::brew_molecule)
320 (spacing-procedure . ,Spanner::set_spacing_rods)
321 (minimum-length . 2.0)
322 (if-text-padding . 1.0)
323 (width-correct . -1.0)
325 (dash-thickness . 1.2)
327 (self-alignment-Y . 0)
328 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
329 (meta . ,(grob-description hairpin-interface dynamic-interface))
335 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self
336 ,Side_position_interface::aligned_on_support_refpoints))
337 ;; huh? what's this for?
340 (left-edge . (extra-space . 1.0))
343 (self-alignment-Y . 0)
344 (molecule-callback . ,Text_item::brew_molecule)
345 (break-align-symbol . instrument-name)
346 (visibility-lambda . ,begin-of-line-visible)
348 (font-family . roman)
349 (meta . ,(grob-description font-interface text-interface break-aligned-interface))
354 (molecule-callback . ,Key_signature_interface::brew_molecule)
356 (time-signature . (extra-space . 1.25))
357 (staff-bar . (extra-space . 1.1))
358 (begin-of-note . (extra-space . 2.5))
360 (break-align-symbol . key-signature)
361 (visibility-lambda . ,begin-of-line-visible)
363 (meta . ,(grob-description key-signature-interface font-interface break-aligned-interface))
371 (minimum-length . 0.5)
372 (maximum-length . 100)
373 (molecule-callback . ,Hyphen_spanner::brew_molecule)
374 (Y-extent-callback . ,Grob::point_dimension_callback)
375 (meta . ,(grob-description lyric-hyphen-interface ))
381 (meta . ,(grob-description line-of-score-interface axis-group-interface))
386 (molecule-callback . ,Lyric_extender::brew_molecule)
387 (height . 0.8) ; stafflinethickness;
388 (right-trim-amount . 0.5)
389 (Y-extent-callback . ,Grob::point_dimension_callback)
390 (meta . ,(grob-description lyric-extender-interface))
395 (molecule-callback . ,Text_item::brew_molecule)
396 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
397 (self-alignment-X . 0)
400 (ignore-length-mismatch . #f)
401 (begin-alignment . 4)
403 (font-family . roman)
404 (font-shape . upright)
405 (meta . ,(grob-description lyric-syllable-interface text-interface font-interface ))
411 (auto-properties . #f)
413 (porrectus-width . 2.4)
414 (line-thickness . 1.0)
417 (molecule-callback . ,Porrectus::brew_molecule)
418 (meta . ,(grob-description porrectus-interface))
423 (molecule-callback . ,Text_item::brew_molecule)
424 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
425 (self-alignment-X . 0)
429 (font-family . roman)
430 (font-shape . upright)
431 (font-relative-size . 1)
432 (visibility-lambda . ,end-of-line-invisible)
434 (meta . ,(grob-description mark-interface side-position-interface))
439 (spacing-procedure . ,Multi_measure_rest::set_spacing_rods)
440 (molecule-callback . ,Multi_measure_rest::brew_molecule)
441 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
444 (padding . 2.0) ; staffspace
445 (minimum-width . 12.5) ; staffspace
446 (font-family . number)
447 (font-relative-size . 1)
448 (meta . ,(grob-description multi-measure-rest-interface rest-interface font-interface ))
454 ;; Ugh, should not be hard-coded.
456 (meta . ,(grob-description
457 note-collision-interface axis-group-interface
464 (meta . ,(grob-description axis-group-interface note-column-interface))
470 (molecule-callback . ,Note_head::brew_molecule)
471 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
472 (stem-attachment-function . ,note-head-style->attachment-coordinates)
473 (meta . ,(grob-description rhythmic-head-interface font-interface note-head-interface))
481 (X-extent-callback . #f)
482 (Y-extent-callback . #f)
483 (molecule-callback . ,Line_spanner::brew_molecule)
484 (meta . ,(grob-description line-spanner-interface))
492 (X-extent-callback . #f)
493 (Y-extent-callback . #f)
494 (molecule-callback . ,Line_spanner::brew_molecule)
495 (meta . ,(grob-description line-spanner-interface))
500 (molecule-callback . ,Text_item::brew_molecule)
501 (font-family . roman)
502 (meta . ,(grob-description note-name-interface font-interface))
507 (self-alignment-X . 0)
509 (visibility-lambda . ,begin-of-line-visible)
510 (X-offset-callbacks . (,Side_position_interface::centered_on_parent ,Side_position_interface::aligned_on_self))
511 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
512 (molecule-callback . ,Text_item::brew_molecule)
513 (font-shape . italic)
514 (font-family . roman)
515 (meta . ,(grob-description text-interface font-interface ))
521 ; (molecule-callback . ,Paper_column::brew_molecule) (font-name . "cmr8")
522 (meta . ,(grob-description paper-column-interface axis-group-interface spaceable-element-interface))
527 (molecule-callback . ,Slur::brew_molecule)
529 (spacing-procedure . ,Spanner::set_spacing_rods)
530 (minimum-length . 1.5)
531 (after-line-breaking-callback . ,Slur::after_line_breaking)
532 (extremity-rules . ,default-slur-extremity-rules)
533 (extremity-offset-alist . ,default-phrasing-slur-extremity-offset-alist)
534 (de-uglify-parameters . ( 1.5 0.8 -2.0))
535 (Y-extent-callback . ,Slur::height)
536 (details . ((height-limit . 2.0) (ratio . 0.333) (force-blowfit . 0.5)
537 (bezier-pct-c0 . -0.2) (bezier-pct-c3 . 0.000006)
538 (bezier-pct-out-max . 0.8) (bezier-pct-in-max . 1.2)
539 (bezier-area-steps . 1.0)))
542 (attachment . (#f . #f))
543 (attachment-offset . ((0 . 0) . (0 . 0)))
545 (meta . ,(grob-description slur-interface))
548 (NonMusicalPaperColumn
551 ; (molecule-callback . ,Paper_column::brew_molecule) (font-name . "cmr8")
552 (meta . ,(grob-description paper-column-interface
553 axis-group-interface spaceable-element-interface))
558 (spacing-procedure . ,Multi_measure_rest::set_spacing_rods)
559 (molecule-callback . ,Multi_measure_rest::percent)
562 (minimum-width . 12.5) ; staffspace
563 (font-family . music)
564 (meta . ,(grob-description multi-measure-rest-interface font-interface percent-repeat-interface))
567 (PianoPedalBracket ;; an example of a text spanner
569 (molecule-callback . ,Text_spanner::brew_molecule)
570 (font-family . roman)
572 (if-text-padding . 1.0)
578 (meta . ,(grob-description text-spanner-interface piano-pedal-interface font-interface))
583 (molecule-callback . , Percent_repeat_item_interface::beat_slash)
586 (meta . ,(grob-description percent-repeat-interface))
590 (after-line-breaking-callback . ,Rest::after_line_breaking)
591 (X-extent-callback . ,Rest::extent_callback)
592 (Y-extent-callback . ,Rest::extent_callback)
593 (molecule-callback . ,Rest::brew_molecule)
594 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
595 (minimum-beam-collision-distance . 1.5)
596 (meta . ,(grob-description
597 rhythmic-head-interface
598 staff-symbol-referencer-interface
604 (minimum-distance . 0.75)
605 (meta . ,(grob-description rest-collision-interface ))
610 ;; don't set direction here: it breaks staccato.
611 (molecule-callback . ,Script::brew_molecule)
613 (X-offset-callbacks . (,Side_position_interface::centered_on_parent))
614 (before-line-breaking-callback . ,Script::before_line_breaking)
615 (font-family . music)
616 (meta . ,(grob-description script-interface side-position-interface font-interface))
621 (before-line-breaking-callback . ,Script_column::before_line_breaking)
622 (meta . ,(grob-description script-column-interface))
627 (molecule-callback . ,Slur::brew_molecule)
629 (spacing-procedure . ,Spanner::set_spacing_rods)
630 (minimum-length . 1.5)
631 (after-line-breaking-callback . ,Slur::after_line_breaking)
632 (extremity-rules . ,default-slur-extremity-rules)
633 (extremity-offset-alist . ,default-slur-extremity-offset-alist)
634 (de-uglify-parameters . ( 1.5 0.8 -2.0))
635 (Y-extent-callback . ,Slur::height)
636 (details . ((height-limit . 2.0) (ratio . 0.333) (force-blowfit . 0.5)
637 (bezier-pct-c0 . -0.2) (bezier-pct-c3 . 0.000006)
638 (bezier-pct-out-max . 0.8) (bezier-pct-in-max . 1.2)
639 (bezier-area-steps . 1.0)))
642 (attachment . (#f . #f))
643 (attachment-offset . ((0 . 0) . (0 . 0)))
645 (meta . ,(grob-description slur-interface))
650 (spacing-procedure . ,Spacing_spanner::set_springs)
651 (grace-space-factor . 0.8)
653 (shortest-duration-space . 2.0)
654 (spacing-increment . 1.2)
656 (X-extent-callback . #f)
657 (Y-extent-callback . #f)
660 (meta . ,(grob-description spacing-spanner-interface))
665 (break-align-symbol . staff-bar)
666 (bar-size-procedure . ,Span_bar::get_bar_size)
667 (molecule-callback . ,Span_bar::brew_molecule)
668 (visibility-lambda . ,begin-of-line-invisible)
669 (X-extent-callback . ,Span_bar::width_callback)
672 (before-line-breaking-callback . ,Span_bar::before_line_breaking)
676 ;; Ross. page 151 lists other values, we opt for a leaner look
680 (hair-thickness . 1.6)
681 (thick-thickness . 6.0)
682 (meta . ,(grob-description span-bar-interface bar-line-interface ))
688 (molecule-callback . ,Text_item::brew_molecule)
689 (break-align-symbol . clef)
690 (visibility-lambda . ,begin-of-line-visible)
691 (font-family . roman)
692 (meta . ,(grob-description break-aligned-interface text-interface font-interface))
698 (X-extent-callback . #f)
699 (stem-spacing-correction . 0.4)
700 (Y-extent-callback . #f)
701 (meta . ,(grob-description staff-spacing-interface))
705 (X-extent-callback . #f)
706 (Y-extent-callback . #f)
707 (stem-spacing-correction . 0.5)
709 (meta . ,(grob-description note-spacing-interface))
714 (molecule-callback . ,Staff_symbol::brew_molecule)
718 (meta . ,(grob-description staff-symbol-interface ))
723 (molecule-callback . ,Text_item::brew_molecule)
725 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
726 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
727 (no-spacing-rods . #t)
728 (padding . 0.0) ;; padding relative to SostenutoPedalLineSpanner
730 (font-family . roman)
731 (font-shape . italic)
732 (self-alignment-X . 0)
733 (meta . ,(grob-description text-interface font-interface))
736 (SostenutoPedalLineSpanner
740 (minimum-space . 1.0)
742 (meta . ,(grob-description piano-pedal-interface axis-group-interface side-position-interface))
747 (before-line-breaking-callback . ,Stem::before_line_breaking)
748 (molecule-callback . ,Stem::brew_molecule)
750 (beamed-lengths . (0.0 2.5 2.0 1.5))
751 (beamed-minimum-lengths . (0.0 1.5 1.25 1.0))
753 ;; Stems in unnatural (forced) direction should be shortened,
754 ;; according to [Roush & Gourlay]. Their suggestion to knock off
755 ;; a whole staffspace seems a bit drastical: we'll do half.
757 (lengths . (3.5 3.5 3.5 4.5 5.0))
758 (stem-shorten . (1.0 0.5))
759 ; if stem is on middle line, choose this direction.
760 (neutral-direction . -1)
761 (X-offset-callbacks . (,Stem::off_callback))
762 (X-extent-callback . ,Stem::dim_callback)
763 (Y-extent-callback . ,Stem::height)
764 (adjust-if-on-staffline . #t)
765 (font-family . music)
766 (meta . ,(grob-description stem-interface font-interface))
771 (molecule-callback . ,Stem_tremolo::brew_molecule)
772 (Y-extent-callback . ,Stem_tremolo::height)
773 (X-extent-callback . #f)
775 (beam-width . 2.0) ; staff-space
776 (beam-thickness . 0.42) ; staff-space
777 (beam-space-function . ,default-beam-space-function)
778 (meta . ,(grob-description stem-tremolo-interface ))
783 (meta . ,(grob-description separation-item-interface ))
786 (SeparatingGroupSpanner
788 (spacing-procedure . ,Separating_group_spanner::set_spacing_rods)
789 (meta . ,(grob-description separation-spanner-interface))
794 (no-spacing-rods . #t)
795 (molecule-callback . ,Sustain_pedal::brew_molecule)
796 (self-alignment-X . 0)
798 (padding . 0.0) ;; padding relative to SustainPedalLineSpanner
800 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
801 (Y-offset-callbacks . (,Side_position_interface::aligned_side ))
802 (meta . ,(grob-description piano-pedal-interface side-position-interface font-interface))
805 (SustainPedalLineSpanner
809 (minimum-space . 1.0)
811 (meta . ,(grob-description piano-pedal-interface axis-group-interface side-position-interface))
817 (molecule-callback . ,System_start_delimiter::brew_molecule)
818 (collapse-height . 5.0)
819 (font-family . braces)
820 (Y-extent-callback . #f)
821 (meta . ,(grob-description system-start-delimiter-interface font-interface))
826 (Y-extent-callback . #f)
827 (molecule-callback . ,System_start_delimiter::brew_molecule)
833 (bracket-collapse-height . 1)
835 (meta . ,(grob-description system-start-delimiter-interface ))
840 (Y-extent-callback . #f)
841 (molecule-callback . ,System_start_delimiter::brew_molecule)
844 (after-line-breaking-callback . ,System_start_delimiter::after_line_breaking)
845 (meta . ,(grob-description system-start-delimiter-interface ))
850 (molecule-callback . ,Text_item::brew_molecule)
851 (no-spacing-rods . #t)
854 ;; todo: add X self alignment?
856 (font-family . roman)
857 (meta . ,(grob-description text-script-interface text-interface side-position-interface font-interface ))
862 (molecule-callback . ,Text_spanner::brew_molecule)
863 (font-family . roman)
866 ;; urg, only for (de)cresc. text spanners
867 (if-text-padding . 1.0)
871 (meta . ,(grob-description text-spanner-interface font-interface))
876 (molecule-callback . ,Tie::brew_molecule)
877 (spacing-procedure . ,Spanner::set_spacing_rods)
878 (staffline-clearance . 0.35)
879 (details . ((ratio . 0.333) (height-limit . 1.0)))
883 (minimum-length . 2.5)
884 (meta . ,(grob-description tie-interface ))
889 (after-line-breaking-callback . ,Tie_column::after_line_breaking)
890 (meta . ,(grob-description tie-column-interface ))
895 (molecule-callback . ,Time_signature::brew_molecule)
896 (break-align-symbol . time-signature)
897 (visibility-lambda . ,all-visible)
899 (begin-of-note . (extra-space . 2.0))
900 (staff-bar . (minimum-space . 2.0))
904 (font-family . number)
905 (meta . ,(grob-description time-signature-interface font-interface))
912 (after-line-breaking-callback . ,Tuplet_bracket::after_line_breaking)
913 (molecule-callback . ,Tuplet_bracket::brew_molecule)
914 (font-family . roman)
915 (font-shape . italic)
916 (font-relative-size . -1)
917 (meta . ,(grob-description text-interface
918 tuplet-bracket-interface font-interface))
923 (molecule-callback . ,Text_item::brew_molecule)
924 (font-family . roman)
925 (font-shape . italic)
926 (no-spacing-rods . #t)
927 (self-alignment-X . 0)
930 (padding . 0.0) ;; padding relative to UnaCordaPedalLineSpanner
931 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
932 (Y-offset-callbacks . (,Side_position_interface::aligned_side ))
933 (meta . ,(grob-description text-interface font-interface))
936 (UnaCordaPedalLineSpanner
940 (minimum-space . 1.0)
942 (meta . ,(grob-description piano-pedal-interface axis-group-interface side-position-interface))
947 (molecule-callback . ,Volta_spanner::brew_molecule)
951 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
952 (thickness . 1.6) ; stafflinethickness
953 (height . 2.0) ; staffspace;
955 (font-family . number)
956 (font-relative-size . -2)
957 (meta . ,(grob-description volta-bracket-interface side-position-interface font-interface))
963 (Y-extent-callback . ,Axis_group_interface::group_extent_callback)
964 (X-extent-callback . #f)
966 (meta . ,(grob-description align-interface axis-group-interface))
972 (meta . ,(grob-description axis-group-interface))
980 (define (completize-grob-entry x)
981 "transplant assoc key into 'name entry of 'meta of X
983 (let* ((name-sym (car x))
985 (metaentry (cdr (assoc 'meta entry)))
986 (new-metaentry (assoc-set! metaentry 'name name-sym))
989 (cons name-sym (assoc-set! entry 'meta new-metaentry))
992 (set! all-grob-descriptions (map completize-grob-entry all-grob-descriptions))
996 ; (display (map pair? all-grob-descriptions))
999 ;; make sure that \property Foo.Bar =\turnOff doesn't complain
1002 ; (display (car x)) (newline)
1004 (set-object-property! (car x) 'translation-type? list?))
1005 all-grob-descriptions)