1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 1998--2012 Jan Nieuwenhuizen <janneke@gnu.org>
4 ;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
6 ;;;; LilyPond is free software: you can redistribute it and/or modify
7 ;;;; it under the terms of the GNU General Public License as published by
8 ;;;; the Free Software Foundation, either version 3 of the License, or
9 ;;;; (at your option) any later version.
11 ;;;; LilyPond is distributed in the hope that it will be useful,
12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;;; GNU General Public License for more details.
16 ;;;; You should have received a copy of the GNU General Public License
17 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
23 (define-public (grob::has-interface grob iface)
24 (memq iface (ly:grob-interfaces grob)))
26 (define-public (grob::is-live? grob)
27 (pair? (ly:grob-basic-properties grob)))
29 (define-public (make-stencil-boxer thickness padding callback)
30 "Return function that adds a box around the grob passed as argument."
32 (box-stencil (callback grob) thickness padding)))
34 (define-public (make-stencil-circler thickness padding callback)
35 "Return function that adds a circle around the grob passed as argument."
37 (circle-stencil (callback grob) thickness padding)))
39 (define-public (print-circled-text-callback grob)
40 (grob-interpret-markup grob (make-circle-markup
41 (ly:grob-property grob 'text))))
43 (define-public (event-cause grob)
44 (let ((cause (ly:grob-property grob 'cause)))
47 ((ly:stream-event? cause) cause)
48 ((ly:grob? cause) (event-cause cause))
51 (define-public (grob-interpret-markup grob text)
52 (let* ((layout (ly:grob-layout grob))
53 (defs (ly:output-def-lookup layout 'text-font-defaults))
54 (props (ly:grob-alist-chain grob defs)))
56 (ly:text-interface::interpret-markup layout props text)))
58 (define-public (grob::unpure-Y-extent-from-stencil pure-function)
59 "The unpure height will come from a stencil whereas the pure
60 height will come from @code{pure-function}."
61 (ly:make-unpure-pure-container ly:grob::stencil-height pure-function))
63 (define-public grob::unpure-horizontal-skylines-from-stencil
64 (ly:make-unpure-pure-container
65 ly:grob::horizontal-skylines-from-stencil
66 ly:grob::pure-simple-horizontal-skylines-from-extents))
68 (define-public grob::always-horizontal-skylines-from-stencil
69 (ly:make-unpure-pure-container
70 ly:grob::horizontal-skylines-from-stencil))
72 (define-public grob::unpure-vertical-skylines-from-stencil
73 (ly:make-unpure-pure-container
74 ly:grob::vertical-skylines-from-stencil
75 ly:grob::pure-simple-vertical-skylines-from-extents))
77 (define-public grob::always-vertical-skylines-from-stencil
78 (ly:make-unpure-pure-container
79 ly:grob::vertical-skylines-from-stencil))
81 (define-public grob::always-vertical-skylines-from-element-stencils
82 (ly:make-unpure-pure-container
83 ly:grob::vertical-skylines-from-element-stencils
84 ly:grob::pure-vertical-skylines-from-element-stencils))
86 (define-public grob::always-horizontal-skylines-from-element-stencils
87 (ly:make-unpure-pure-container
88 ly:grob::horizontal-skylines-from-element-stencils
89 ly:grob::pure-horizontal-skylines-from-element-stencils))
91 ;; Using this as a callback for a grob's Y-extent promises
92 ;; that the grob's stencil does not depend on line-spacing.
93 ;; We use this promise to figure the space required by Clefs
94 ;; and such at the note-spacing stage.
96 (define-public grob::always-Y-extent-from-stencil
97 (ly:make-unpure-pure-container ly:grob::stencil-height))
99 (define-public (layout-line-thickness grob)
100 "Get the line thickness of the @var{grob}'s corresponding layout."
101 (let* ((layout (ly:grob-layout grob))
102 (line-thickness (ly:output-def-lookup layout 'line-thickness)))
106 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
109 ;; even though kievan noteheads do not have stems, their
110 ;; invisible stems help with beam placement
111 ;; this assures that invisible stems for kievan notes are aligned
112 ;; to the center of kievan noteheads. that is thus where the beams'
113 ;; x extrema will fall
114 (define-public (stem::kievan-offset-callback grob)
115 (let* ((note-heads (ly:grob-object grob 'note-heads))
116 (note-heads-grobs (if (not (null? note-heads))
117 (ly:grob-array->list note-heads)
119 (first-note-head (if (not (null? note-heads-grobs))
120 (car note-heads-grobs)
122 (note-head-w (if (not (null? first-note-head))
123 (ly:grob-extent first-note-head first-note-head X)
125 (interval-center note-head-w)))
128 ;; sets position of beams for Kievan notation
129 (define-public (beam::get-kievan-positions grob)
130 (let* ((stems (ly:grob-object grob 'stems))
131 (stems-grobs (if (not (null? stems))
132 (ly:grob-array->list stems)
134 (first-stem (if (not (null? stems-grobs))
137 (note-heads (if (not (null? first-stem))
138 (ly:grob-object first-stem 'note-heads)
140 (note-heads-grobs (if (not (null? note-heads))
141 (ly:grob-array->list note-heads)
143 (first-note-head (if (not (null? note-heads-grobs))
144 (car note-heads-grobs)
146 (next-stem (if (not (null? stems))
149 (next-note-heads (if (not (null? next-stem))
150 (ly:grob-object next-stem 'note-heads)
152 (next-note-heads-grobs (if (not (null? next-note-heads))
153 (ly:grob-array->list next-note-heads)
155 (next-note-head (if (not (null? next-note-heads-grobs))
156 (car next-note-heads-grobs)
158 (left-pos (ly:grob-property first-note-head 'Y-offset))
159 (right-pos (ly:grob-property next-note-head 'Y-offset))
160 (direction (ly:grob-property grob 'direction))
161 (first-nh-height (ly:grob::stencil-height first-note-head))
162 (next-nh-height (ly:grob::stencil-height next-note-head))
163 (left-height (if (= direction DOWN)
164 (+ (car first-nh-height) 0.75)
165 (- (cdr first-nh-height) 0.75)))
166 (right-height (if (= direction DOWN)
167 (+ (car next-nh-height) 0.75)
168 (- (cdr next-nh-height) 0.75))))
169 (cons (+ left-pos left-height) (+ right-pos right-height))))
171 (define-public (beam::get-kievan-quantized-positions grob)
172 (let* ((pos (ly:grob-property grob 'positions))
173 (stems (ly:grob-object grob 'stems))
174 (stems-grobs (if (not (null? stems))
175 (ly:grob-array->list stems)
179 (ly:grob-set-property! g 'stem-begin-position 0)
180 (ly:grob-set-property! g 'length 0))
184 ;; calculates each slope of a broken beam individually
185 (define-public (beam::place-broken-parts-individually grob)
186 (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
188 ;; calculates the slope of a beam as a single unit,
189 ;; even if it is broken. this assures that the beam
190 ;; will pick up where it left off after a line break
191 (define-public (beam::align-with-broken-parts grob)
192 (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
194 ;; uses the broken beam style from edition peters combines the
195 ;; values of place-broken-parts-individually and align-with-broken-parts above,
196 ;; favoring place-broken-parts-individually when the beam naturally has a steeper
197 ;; incline and align-with-broken-parts when the beam is flat
198 (define-public (beam::slope-like-broken-parts grob)
200 (/ (- (cdr y) (car y)) (- (cdr x) (car x))))
201 (let* ((quant1 (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
202 (original (ly:grob-original grob))
203 (siblings (if (ly:grob? original)
204 (ly:spanner-broken-into original)
208 (let* ((quant2 (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
209 (x-span (ly:grob-property grob 'X-positions))
210 (slope1 (slope quant1 x-span))
211 (slope2 (slope quant2 x-span))
212 (quant2 (if (not (= (sign slope1) (sign slope2)))
215 (factor (/ (atan (abs slope1)) PI-OVER-TWO))
218 (+ (* (x quant1) (- 1 factor))
219 (* (x quant2) factor)))
221 (ly:beam::quanting grob base #f)))))
223 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
226 (define-public (script-or-side-position-cross-staff g)
228 (ly:script-interface::calc-cross-staff g)
229 (ly:side-position-interface::calc-cross-staff g)))
232 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
233 ;; side-position stuff
235 (define-public (only-if-beamed g)
236 (any (lambda (x) (ly:grob? (ly:grob-object x 'beam)))
237 (ly:grob-array->list (ly:grob-object g 'side-support-elements))))
239 (define-public side-position-interface::y-aligned-side
240 (ly:make-unpure-pure-container
241 ly:side-position-interface::y-aligned-side
242 ly:side-position-interface::pure-y-aligned-side))
244 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
245 ;; self-alignment stuff
247 (define-public self-alignment-interface::y-aligned-on-self
248 (ly:make-unpure-pure-container
249 ly:self-alignment-interface::y-aligned-on-self
250 ly:self-alignment-interface::pure-y-aligned-on-self))
252 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
255 (define staff-symbol-referencer::callback
256 (ly:make-unpure-pure-container ly:staff-symbol-referencer::callback))
258 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
261 (define-public (stem::calc-duration-log grob)
263 (ly:event-property (event-cause grob) 'duration)))
265 (define (stem-stub::do-calculations grob)
266 (and (ly:grob-property (ly:grob-parent grob X) 'cross-staff)
267 (not (ly:grob-property (ly:grob-parent grob X) 'transparent))))
269 (define-public (stem-stub::pure-height grob beg end)
270 (if (stem-stub::do-calculations grob)
274 (define-public (stem-stub::width grob)
275 (if (stem-stub::do-calculations grob)
276 (grob::x-parent-width grob)
279 (define-public (stem-stub::extra-spacing-height grob)
280 (if (stem-stub::do-calculations grob)
281 (let* ((dad (ly:grob-parent grob X))
282 (refp (ly:grob-common-refpoint grob dad Y))
283 (stem_ph (ly:grob-pure-height dad refp 0 INFINITY-INT))
284 (my_ph (ly:grob-pure-height grob refp 0 INFINITY-INT))
285 ;; only account for distance if stem is on different staff than stub
286 (dist (if (grob::has-interface refp 'hara-kiri-group-spanner-interface)
288 (- (car my_ph) (car stem_ph)))))
289 (if (interval-empty? (interval-intersection stem_ph my_ph)) #f (coord-translate stem_ph dist)))
292 (define-public (note-head::calc-kievan-duration-log grob)
295 (ly:event-property (event-cause grob) 'duration))))
297 (define-public (note-head::calc-duration-log grob)
300 (ly:event-property (event-cause grob) 'duration))))
302 (define-public (dots::calc-dot-count grob)
303 (ly:duration-dot-count
304 (ly:event-property (event-cause grob) 'duration)))
306 (define-public (dots::calc-staff-position grob)
307 (let* ((head (ly:grob-parent grob Y))
308 (log (ly:grob-property head 'duration-log)))
311 ((or (not (grob::has-interface head 'rest-interface))
312 (not (integer? log))) 0)
320 ;; Kept separate from note-head::calc-glyph-name to allow use by
321 ;; markup commands \note and \note-by-number
322 (define-public (select-head-glyph style log)
323 "Select a note head glyph string based on note head style @var{style}
324 and duration-log @var{log}."
326 ;; "default" style is directly handled in note-head.cc as a
327 ;; special case (HW says, mainly for performance reasons).
328 ;; Therefore, style "default" does not appear in this case
330 ((xcircle) "2xcircle")
331 ((harmonic) "0harmonic")
332 ((harmonic-black) "2harmonic")
333 ((harmonic-mixed) (if (<= log 1) "0harmonic"
336 ;; Oops, I actually would not call this "baroque", but, for
337 ;; backwards compatibility to 1.4, this is supposed to take
338 ;; brevis, longa and maxima from the neo-mensural font and all
339 ;; other note heads from the default font. -- jr
341 (string-append (number->string log) "neomensural")
342 (number->string log)))
344 ;; Like default, but brevis is drawn with double vertical lines
346 (string-append (number->string log) "double")
347 (number->string log)))
349 (string-append (number->string log) (symbol->string style)))
352 (string-append (number->string log) "mensural")
353 (string-append (number->string log) (symbol->string style))))
356 (string-append (number->string log) "blackmensural")
357 (string-append (number->string log) (symbol->string style))))
360 (string-append (number->string log) "semimensural")
361 (string-append (number->string log) "petrucci")))
363 (string-append (number->string log) (symbol->string style)))
365 (string-append (number->string log) "kievan"))
367 (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
368 (symbol->string style)
369 (string-append (number->string (max 0 log))
370 (symbol->string style))))))
372 (define-public (note-head::calc-glyph-name grob)
373 (let* ((style (ly:grob-property grob 'style))
374 (log (if (string-match "kievan*" (symbol->string style))
375 (min 3 (ly:grob-property grob 'duration-log))
376 (min 2 (ly:grob-property grob 'duration-log)))))
377 (select-head-glyph style log)))
379 (define-public (note-head::brew-ez-stencil grob)
380 (let* ((log (ly:grob-property grob 'duration-log))
381 (pitch (ly:event-property (event-cause grob) 'pitch))
382 (pitch-index (ly:pitch-notename pitch))
383 (note-names (ly:grob-property grob 'note-names))
384 (pitch-string (if (and (vector? note-names)
385 (> (vector-length note-names) pitch-index))
386 (vector-ref note-names pitch-index)
389 (+ (modulo (+ pitch-index 2) 7)
390 (char->integer #\A))))))
391 (staff-space (ly:staff-symbol-staff-space grob))
392 (line-thickness (ly:staff-symbol-line-thickness grob))
393 (stem (ly:grob-object grob 'stem))
394 (stem-thickness (* (if (ly:grob? stem)
395 (ly:grob-property stem 'thickness)
398 (radius (/ (+ staff-space line-thickness) 2))
399 (letter (markup #:center-align #:vcenter pitch-string))
400 (filled-circle (markup #:draw-circle radius 0 #t)))
402 (ly:stencil-translate-axis
403 (grob-interpret-markup
408 (make-with-color-markup white letter))
412 (make-with-color-markup white (make-draw-circle-markup
413 (- radius stem-thickness) 0 #t)))
417 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
420 (define-public (make-rhythmic-location bar-num num den)
422 bar-num (ly:make-moment num den)))
424 (define-public (rhythmic-location? a)
427 (ly:moment? (cdr a))))
429 (define-public (make-graceless-rhythmic-location loc)
430 (make-rhythmic-location
432 (ly:moment-main-numerator (rhythmic-location-measure-position loc))
433 (ly:moment-main-denominator (rhythmic-location-measure-position loc))))
435 (define-public rhythmic-location-measure-position cdr)
436 (define-public rhythmic-location-bar-number car)
438 (define-public (rhythmic-location<? a b)
440 ((< (car a) (car b)) #t)
441 ((> (car a) (car b)) #f)
443 (ly:moment<? (cdr a) (cdr b)))))
445 (define-public (rhythmic-location<=? a b)
446 (not (rhythmic-location<? b a)))
447 (define-public (rhythmic-location>=? a b)
448 (not (rhythmic-location<? a b)))
449 (define-public (rhythmic-location>? a b)
450 (rhythmic-location<? b a))
452 (define-public (rhythmic-location=? a b)
453 (and (rhythmic-location<=? a b)
454 (rhythmic-location<=? b a)))
456 (define-public (rhythmic-location->file-string a)
457 (ly:format "~a.~a.~a"
459 (ly:moment-main-numerator (cdr a))
460 (ly:moment-main-denominator (cdr a))))
462 (define-public (rhythmic-location->string a)
463 (ly:format "bar ~a ~a"
465 (ly:moment->string (cdr a))))
467 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
470 (define-public all-visible #(#t #t #t))
471 (define-public begin-of-line-invisible #(#t #t #f))
472 (define-public center-invisible #(#t #f #t))
473 (define-public end-of-line-invisible #(#f #t #t))
474 (define-public begin-of-line-visible #(#f #f #t))
475 (define-public center-visible #(#f #t #f))
476 (define-public end-of-line-visible #(#t #f #f))
477 (define-public all-invisible #(#f #f #f))
479 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
480 ;; neighbor-interface routines
483 (define-public (shift-right-at-line-begin g)
484 "Shift an item to the right, but only at the start of the line."
485 (if (and (ly:item? g)
486 (equal? (ly:item-break-dir g) RIGHT))
487 (ly:grob-translate-axis! g 3.5 X)))
489 (define-public (pure-from-neighbor-interface::extra-spacing-height-at-beginning-of-line grob)
490 (if (= 1 (ly:item-break-dir grob))
491 (pure-from-neighbor-interface::extra-spacing-height grob)
494 (define-public (pure-from-neighbor-interface::extra-spacing-height grob)
495 (let* ((height (ly:grob-pure-height grob grob 0 INFINITY-INT))
496 (from-neighbors (interval-union
498 (ly:axis-group-interface::pure-height
502 (coord-operation - from-neighbors height)))
504 ;; If there are neighbors, we place the height at their midpoint
505 ;; to avoid protrusion of this pure height out of the vertical
506 ;; axis group on either side. This will minimize the impact of the
507 ;; grob on pure minimum translations.
509 ;; TODO - there is a double call to axis-group-interface::pure-height
510 ;; here and then in the extra-spacing-height function above. Can/should this
511 ;; be rolled into one?
512 (define-public (pure-from-neighbor-interface::pure-height grob beg end)
513 (let* ((height (ly:axis-group-interface::pure-height
517 (c (interval-center height)))
518 (if (interval-empty? height) empty-interval (cons c c))))
520 ;; Minimizes the impact of the height on vertical spacing while allowing
521 ;; it to appear in horizontal skylines of paper columns if necessary.
522 (define-public pure-from-neighbor-interface::height-if-pure
523 (ly:make-unpure-pure-container #f pure-from-neighbor-interface::pure-height))
525 (define-public (pure-from-neighbor-interface::account-for-span-bar grob)
526 (let* ((esh (pure-from-neighbor-interface::extra-spacing-height grob))
527 (hsb (ly:grob-property grob 'has-span-bar))
528 (ii (interval-intersection esh (cons -1.01 1.01))))
530 (cons (car (if (and (car hsb)
531 (ly:grob-property grob 'allow-span-bar))
533 (cdr (if (cdr hsb) esh ii)))
536 (define-public (pure-from-neighbor-interface::extra-spacing-height-including-staff grob)
537 (let ((esh (pure-from-neighbor-interface::extra-spacing-height grob))
538 (to-staff (coord-operation -
541 (ly:staff-symbol-staff-radius grob))
542 (ly:grob::stencil-height grob))))
543 (interval-union esh to-staff)))
546 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
549 (define-public (tuplet-number::calc-direction grob)
550 (ly:tuplet-bracket::calc-direction (ly:grob-object grob 'bracket)))
552 (define-public (tuplet-number::calc-denominator-text grob)
553 (number->string (ly:event-property (event-cause grob) 'denominator)))
555 (define-public (tuplet-number::calc-fraction-text grob)
556 (let ((ev (event-cause grob)))
559 (ly:event-property ev 'denominator)
560 (ly:event-property ev 'numerator))))
562 ;; a formatter function, which is simply a wrapper around an existing
563 ;; tuplet formatter function. It takes the value returned by the given
564 ;; function and appends a note of given length.
565 (define-public ((tuplet-number::append-note-wrapper function note) grob)
566 (let ((txt (if function (function grob) #f)))
569 (markup txt #:fontsize -5 #:note note UP)
570 (markup #:fontsize -5 #:note note UP))))
572 ;; Print a tuplet denominator with a different number than the one derived from
573 ;; the actual tuplet fraction
574 (define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
576 (number->string (if denominator
578 (ly:event-property (event-cause grob) 'denominator))))
580 ;; Print a tuplet fraction with different numbers than the ones derived from
581 ;; the actual tuplet fraction
582 (define-public ((tuplet-number::non-default-tuplet-fraction-text
583 denominator numerator) grob)
584 (let* ((ev (event-cause grob))
585 (den (if denominator denominator (ly:event-property ev 'denominator)))
586 (num (if numerator numerator (ly:event-property ev 'numerator))))
588 (format #f "~a:~a" den num)))
590 ;; Print a tuplet fraction with note durations appended to the numerator and the
592 (define-public ((tuplet-number::fraction-with-notes
593 denominatornote numeratornote) grob)
594 (let* ((ev (event-cause grob))
595 (denominator (ly:event-property ev 'denominator))
596 (numerator (ly:event-property ev 'numerator)))
598 ((tuplet-number::non-default-fraction-with-notes
599 denominator denominatornote numerator numeratornote) grob)))
601 ;; Print a tuplet fraction with note durations appended to the numerator and the
603 (define-public ((tuplet-number::non-default-fraction-with-notes
604 denominator denominatornote numerator numeratornote) grob)
605 (let* ((ev (event-cause grob))
606 (den (if denominator denominator (ly:event-property ev 'denominator)))
607 (num (if numerator numerator (ly:event-property ev 'numerator))))
609 (make-concat-markup (list
610 (make-simple-markup (format #f "~a" den))
611 (markup #:fontsize -5 #:note denominatornote UP)
612 (make-simple-markup " : ")
613 (make-simple-markup (format #f "~a" num))
614 (markup #:fontsize -5 #:note numeratornote UP)))))
617 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
620 (define-public (color? x)
624 (every (lambda (y) (<= 0 y 1)) x)))
626 (define-public (rgb-color r g b) (list r g b))
629 (define-public black '(0.0 0.0 0.0))
630 (define-public white '(1.0 1.0 1.0))
631 (define-public red '(1.0 0.0 0.0))
632 (define-public green '(0.0 1.0 0.0))
633 (define-public blue '(0.0 0.0 1.0))
634 (define-public cyan '(0.0 1.0 1.0))
635 (define-public magenta '(1.0 0.0 1.0))
636 (define-public yellow '(1.0 1.0 0.0))
638 (define-public grey '(0.5 0.5 0.5))
639 (define-public darkred '(0.5 0.0 0.0))
640 (define-public darkgreen '(0.0 0.5 0.0))
641 (define-public darkblue '(0.0 0.0 0.5))
642 (define-public darkcyan '(0.0 0.5 0.5))
643 (define-public darkmagenta '(0.5 0.0 0.5))
644 (define-public darkyellow '(0.5 0.5 0.0))
647 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
650 (define-public (key-signature-interface::alteration-positions
651 entry c0-position grob)
652 (let ((step (car entry))
655 (list (+ (cdr step) (* (car step) 7) c0-position))
656 (let* ((c-position (modulo c0-position 7))
659 ;; See (flat|sharp)-positions in define-grob-properties.scm
660 (ly:grob-property grob 'flat-positions '(3))
661 (ly:grob-property grob 'sharp-positions '(3))))
662 (p (list-ref positions
663 (if (< c-position (length positions))
665 (max-position (if (pair? p) (cdr p) p))
666 (min-position (if (pair? p) (car p) (- max-position 6)))
667 (first-position (+ (modulo (- (+ c-position step)
671 (define (prepend x l) (if (> x max-position)
673 (prepend (+ x 7) (cons x l))))
674 (prepend first-position '())))))
676 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
679 (define-public (numbered-footnotes int)
680 (markup #:tiny (number->string (+ 1 int))))
682 (define-public (symbol-footnotes int)
683 (define (helper symbols out idx n)
687 (string-append out (list-ref symbols idx))
690 (markup #:tiny (helper '("*" "†" "‡" "§" "¶")
693 (+ 1 (quotient int 5)))))
695 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
698 (define-public (accidental-interface::calc-alteration grob)
699 (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
701 (define-public (accidental-interface::glyph-name grob)
702 (assoc-get (ly:grob-property grob 'alteration)
703 standard-alteration-glyph-name-alist))
705 (define-public accidental-interface::height
706 (ly:make-unpure-pure-container
707 ly:accidental-interface::height
708 ly:accidental-interface::pure-height))
710 (define-public cancellation-glyph-name-alist
711 '((0 . "accidentals.natural")))
713 (define-public standard-alteration-glyph-name-alist
715 ;; ordered for optimal performance.
716 (0 . "accidentals.natural")
717 (-1/2 . "accidentals.flat")
718 (1/2 . "accidentals.sharp")
720 (1 . "accidentals.doublesharp")
721 (-1 . "accidentals.flatflat")
723 (3/4 . "accidentals.sharp.slashslash.stemstemstem")
724 (1/4 . "accidentals.sharp.slashslash.stem")
725 (-1/4 . "accidentals.mirroredflat")
726 (-3/4 . "accidentals.mirroredflat.flat")))
728 ;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
729 (define-public alteration-default-glyph-name-alist
730 standard-alteration-glyph-name-alist)
732 (define-public makam-alteration-glyph-name-alist
733 '((1 . "accidentals.doublesharp")
734 (8/9 . "accidentals.sharp.slashslashslash.stemstem")
735 (5/9 . "accidentals.sharp.slashslashslash.stem")
736 (4/9 . "accidentals.sharp")
737 (1/9 . "accidentals.sharp.slashslash.stem")
738 (0 . "accidentals.natural")
739 (-1/9 . "accidentals.mirroredflat")
740 (-4/9 . "accidentals.flat.slash")
741 (-5/9 . "accidentals.flat")
742 (-8/9 . "accidentals.flat.slashslash")
743 (-1 . "accidentals.flatflat")))
745 (define-public alteration-hufnagel-glyph-name-alist
746 '((-1/2 . "accidentals.hufnagelM1")
747 (0 . "accidentals.vaticana0")
748 (1/2 . "accidentals.mensural1")))
750 (define-public alteration-medicaea-glyph-name-alist
751 '((-1/2 . "accidentals.medicaeaM1")
752 (0 . "accidentals.vaticana0")
753 (1/2 . "accidentals.mensural1")))
755 (define-public alteration-vaticana-glyph-name-alist
756 '((-1/2 . "accidentals.vaticanaM1")
757 (0 . "accidentals.vaticana0")
758 (1/2 . "accidentals.mensural1")))
760 (define-public alteration-mensural-glyph-name-alist
761 '((-1/2 . "accidentals.mensuralM1")
762 (0 . "accidentals.vaticana0")
763 (1/2 . "accidentals.mensural1")))
765 (define-public alteration-kievan-glyph-name-alist
766 '((-1/2 . "accidentals.kievanM1")
767 (1/2 . "accidentals.kievan1")))
769 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
770 ;; * Pitch Trill Heads
773 (define-public (parentheses-item::calc-parenthesis-stencils grob)
774 (let* ((font (ly:grob-default-font grob))
775 (lp (ly:font-get-glyph font "accidentals.leftparen"))
776 (rp (ly:font-get-glyph font "accidentals.rightparen")))
780 (define-public (parentheses-item::calc-angled-bracket-stencils grob)
781 (let* ((parent (ly:grob-parent grob Y))
782 (y-extent (ly:grob-extent parent parent Y))
783 (half-thickness 0.05) ; should it be a property?
784 (width 0.5) ; should it be a property?
785 (angularity 1.5) ; makes angle brackets
786 (white-padding 0.1) ; should it be a property?
787 (lp (ly:stencil-aligned-to
788 (ly:stencil-aligned-to
789 (make-parenthesis-stencil y-extent
796 (interval-widen (ly:stencil-extent lp X) white-padding))
797 (rp (ly:stencil-aligned-to
798 (ly:stencil-aligned-to
799 (make-parenthesis-stencil y-extent
806 (interval-widen (ly:stencil-extent rp X) white-padding)))
807 (set! lp (ly:make-stencil (ly:stencil-expr lp)
809 (ly:stencil-extent lp Y)))
810 (set! rp (ly:make-stencil (ly:stencil-expr rp)
812 (ly:stencil-extent rp Y)))
813 (list (stencil-whiteout lp)
814 (stencil-whiteout rp))))
816 (define (parenthesize-elements grob . rest)
817 (let* ((refp (if (null? rest)
820 (elts (ly:grob-object grob 'elements))
821 (x-ext (ly:relative-group-extent elts refp X))
822 (stencils (ly:grob-property grob 'stencils))
825 (padding (ly:grob-property grob 'padding 0.1)))
828 (ly:stencil-translate-axis lp (- (car x-ext) padding) X)
829 (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
832 (define-public (parentheses-item::print me)
833 (let* ((elts (ly:grob-object me 'elements))
834 (y-ref (ly:grob-common-refpoint-of-array me elts Y))
835 (x-ref (ly:grob-common-refpoint-of-array me elts X))
836 (stencil (parenthesize-elements me x-ref))
837 (elt-y-ext (ly:relative-group-extent elts y-ref Y))
838 (y-center (interval-center elt-y-ext)))
840 (ly:stencil-translate
843 (- (ly:grob-relative-coordinate me x-ref X))
844 (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
847 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
850 (define-public (pure-chain-offset-callback grob start end prev-offset)
851 "Sometimes, a chained offset callback is unpure and there is
852 no way to write a pure function that estimates its behavior.
853 In this case, we use a pure equivalent that will simply pass
854 the previous calculated offset value."
857 (define-public (scale-by-font-size x)
858 (ly:make-unpure-pure-container
860 (* x (magstep (ly:grob-property grob 'font-size 0))))))
862 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
865 (define-public (chain-grob-member-functions grob value . funcs)
868 (set! value (func grob value)))
874 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
877 (define-public (bend::print spanner)
879 (< (abs (- a b)) 0.01))
881 (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
882 (left-span (ly:spanner-bound spanner LEFT))
883 (dots (if (and (grob::has-interface left-span 'note-head-interface)
884 (ly:grob? (ly:grob-object left-span 'dot)))
885 (ly:grob-object left-span 'dot) #f))
887 (right-span (ly:spanner-bound spanner RIGHT))
888 (thickness (* (ly:grob-property spanner 'thickness)
889 (ly:output-def-lookup (ly:grob-layout spanner)
891 (padding (ly:grob-property spanner 'padding 0.5))
892 (common (ly:grob-common-refpoint right-span
893 (ly:grob-common-refpoint spanner
896 (common-y (ly:grob-common-refpoint spanner left-span Y))
897 (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
901 (interval-end (ly:grob-robust-relative-extent
906 (ly:grob-relative-coordinate dots common-y Y)
907 (ly:grob-relative-coordinate spanner common-y Y)))
909 (ly:grob-robust-relative-extent dots common X))
911 (right-x (max (- (interval-start
912 (ly:grob-robust-relative-extent right-span common X))
914 (+ left-x minimum-length)))
915 (self-x (ly:grob-relative-coordinate spanner common X))
916 (dx (- right-x left-x))
917 (exp (list 'path thickness
925 ,dx ,(* 0.66 delta-y)
930 (cons (- left-x self-x) (- right-x self-x))
931 (cons (min 0 delta-y)
935 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
938 (define-public (grace-spacing::calc-shortest-duration grob)
939 (let* ((cols (ly:grob-object grob 'columns))
942 (ly:moment-sub (ly:grob-property
943 (ly:grob-array-ref cols (1+ idx)) 'when)
945 (ly:grob-array-ref cols idx) 'when))))
947 (moment-min (lambda (x y)
950 (if (ly:moment<? x y)
956 (fold moment-min #f (map get-difference
957 (iota (1- (ly:grob-array-length cols)))))))
960 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
963 (define-public (fingering::calc-text grob)
964 (let ((event (event-cause grob)))
965 (or (ly:event-property event 'text #f)
966 (number->string (ly:event-property event 'digit) 10))))
968 (define-public (string-number::calc-text grob)
969 (let ((event (event-cause grob)))
970 (or (ly:event-property event 'text #f)
971 (number->string (ly:event-property event 'string-number) 10))))
973 (define-public (stroke-finger::calc-text grob)
974 (let ((event (event-cause grob)))
975 (or (ly:event-property event 'text #f)
976 (vector-ref (ly:grob-property grob 'digit-names)
978 (min 5 (ly:event-property event 'digit))))))))
981 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
984 (define-public (hairpin::calc-grow-direction grob)
985 (if (ly:in-event-class? (event-cause grob) 'decrescendo-event)
989 (define-public (dynamic-text-spanner::before-line-breaking grob)
990 "Monitor left bound of @code{DynamicTextSpanner} for absolute dynamics.
991 If found, ensure @code{DynamicText} does not collide with spanner text by
992 changing @code{'attach-dir} and @code{'padding}. Reads the
993 @code{'right-padding} property of @code{DynamicText} to fine tune space
994 between the two text elements."
995 (let ((left-bound (ly:spanner-bound grob LEFT)))
996 (if (grob::has-interface left-bound 'dynamic-text-interface)
997 (let* ((details (ly:grob-property grob 'bound-details))
998 (left-details (ly:assoc-get 'left details))
999 (my-padding (ly:assoc-get 'padding left-details))
1000 (script-padding (ly:grob-property left-bound 'right-padding 0)))
1002 (and (number? my-padding)
1003 (ly:grob-set-nested-property! grob
1004 '(bound-details left attach-dir)
1006 (ly:grob-set-nested-property! grob
1007 '(bound-details left padding)
1008 (+ my-padding script-padding)))))))
1010 (define-public ((elbowed-hairpin coords mirrored?) grob)
1011 "Create hairpin based on a list of @var{coords} in @code{(cons x y)}
1012 form. @code{x} is the portion of the width consumed for a given line
1013 and @code{y} is the portion of the height. For example,
1014 @code{'((0.3 . 0.7) (0.8 . 0.9) (1.0 . 1.0))} means that at the point
1015 where the hairpin has consumed 30% of its width, it must
1016 be at 70% of its height. Once it is to 80% width, it
1017 must be at 90% height. It finishes at
1018 100% width and 100% height. @var{mirrored?} indicates if the hairpin
1019 is mirrored over the Y-axis or if just the upper part is drawn.
1020 Returns a function that accepts a hairpin grob as an argument
1021 and draws the stencil based on its coordinates.
1022 @lilypond[verbatim,quote]
1023 #(define simple-hairpin
1024 (elbowed-hairpin '((1.0 . 1.0)) #t))
1027 \\override Hairpin #'stencil = #simple-hairpin
1032 (define (pair-to-list pair)
1033 (list (car pair) (cdr pair)))
1034 (define (normalize-coords goods x y)
1037 (cons (* x (car coord)) (* y (cdr coord))))
1039 (define (my-c-p-s points thick decresc?)
1040 (make-connected-path-stencil
1043 (if decresc? -1.0 1.0)
1047 ;; outer let to trigger suicide
1048 (let ((sten (ly:hairpin::print grob)))
1049 (if (grob::is-live? grob)
1050 (let* ((decresc? (eq? (ly:grob-property grob 'grow-direction) LEFT))
1051 (thick (ly:grob-property grob 'thickness 0.1))
1052 (thick (* thick (layout-line-thickness grob)))
1053 (xex (ly:stencil-extent sten X))
1054 (lenx (interval-length xex))
1055 (yex (ly:stencil-extent sten Y))
1056 (leny (interval-length yex))
1057 (xtrans (+ (car xex) (if decresc? lenx 0)))
1059 (uplist (map pair-to-list
1060 (normalize-coords coords lenx (/ leny 2))))
1061 (downlist (map pair-to-list
1062 (normalize-coords coords lenx (/ leny -2)))))
1063 (ly:stencil-translate
1065 (my-c-p-s uplist thick decresc?)
1066 (if mirrored? (my-c-p-s downlist thick decresc?) empty-stencil))
1067 (cons xtrans ytrans)))
1070 (define-public flared-hairpin
1071 (elbowed-hairpin '((0.95 . 0.4) (1.0 . 1.0)) #t))
1073 (define-public constante-hairpin
1074 (elbowed-hairpin '((1.0 . 0.0) (1.0 . 1.0)) #f))
1076 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1079 (define-public (lyric-text::print grob)
1080 "Allow interpretation of tildes as lyric tieing marks."
1082 (let ((text (ly:grob-property grob 'text)))
1084 (grob-interpret-markup grob (if (string? text)
1085 (make-tied-lyric-markup text)
1088 (define-public ((grob::calc-property-by-copy prop) grob)
1089 (ly:event-property (event-cause grob) prop))
1091 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1092 ;; general inheritance
1094 (define-public ((grob::inherit-parent-property axis property . default) grob)
1095 "@var{grob} callback generator for inheriting a @var{property} from
1096 an @var{axis} parent, defaulting to @var{default} if there is no
1097 parent or the parent has no setting."
1098 (let ((parent (ly:grob-parent grob axis)))
1101 (apply ly:grob-property parent property default))
1102 ((pair? default) (car default))
1105 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1108 (define-public (fret-board::calc-stencil grob)
1109 (grob-interpret-markup
1111 (make-fret-diagram-verbose-markup
1112 (ly:grob-property grob 'dot-placement-list))))
1115 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1118 (define-public slur::height
1119 (ly:make-unpure-pure-container
1121 ly:slur::pure-height))
1123 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1126 (define-public (script-interface::calc-x-offset grob)
1127 (ly:grob-property grob 'positioning-done)
1128 (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
1130 (ly:self-alignment-interface::centered-on-x-parent grob))
1131 (note-head-grob (ly:grob-parent grob X))
1132 (stem-grob (ly:grob-object note-head-grob 'stem)))
1134 (+ note-head-location
1135 ;; If the property 'toward-stem-shift is defined and the script
1136 ;; has the same direction as the stem, move the script accordingly.
1137 ;; Since scripts can also be over skips, we need to check whether
1138 ;; the grob has a stem at all.
1139 (if (ly:grob? stem-grob)
1140 (let ((dir1 (ly:grob-property grob 'direction))
1141 (dir2 (ly:grob-property stem-grob 'direction)))
1142 (if (equal? dir1 dir2)
1143 (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
1145 (ly:grob-relative-coordinate stem-grob common-refp X)))
1146 (* shift (- stem-location note-head-location)))
1151 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1154 (define-public (system-start-text::print grob)
1155 (let* ((left-bound (ly:spanner-bound grob LEFT))
1156 (left-mom (ly:grob-property left-bound 'when))
1157 (name (if (moment<=? left-mom ZERO-MOMENT)
1158 (ly:grob-property grob 'long-text)
1159 (ly:grob-property grob 'text))))
1161 (if (and (markup? name)
1162 (!= (ly:item-break-dir left-bound) CENTER))
1164 (grob-interpret-markup grob name)
1165 (ly:grob-suicide! grob))))
1167 (define-public (system-start-text::calc-x-offset grob)
1168 (let* ((left-bound (ly:spanner-bound grob LEFT))
1169 (left-mom (ly:grob-property left-bound 'when))
1170 (layout (ly:grob-layout grob))
1171 (indent (ly:output-def-lookup layout
1172 (if (moment<=? left-mom ZERO-MOMENT)
1176 (system (ly:grob-system grob))
1177 (my-extent (ly:grob-extent grob system X))
1178 (elements (ly:grob-object system 'elements))
1179 (common (ly:grob-common-refpoint-of-array system elements X))
1180 (total-ext empty-interval)
1181 (align-x (ly:grob-property grob 'self-alignment-X 0))
1182 (padding (min 0 (- (interval-length my-extent) indent)))
1183 (right-padding (- padding
1184 (/ (* padding (1+ align-x)) 2))))
1186 ;; compensate for the variation in delimiter extents by
1187 ;; calculating an X-offset correction based on united extents
1188 ;; of all delimiters in this system
1189 (let unite-delims ((l (ly:grob-array-length elements)))
1191 (let ((elt (ly:grob-array-ref elements (1- l))))
1193 (if (grob::has-interface elt 'system-start-delimiter-interface)
1194 (let ((dims (ly:grob-extent elt common X)))
1195 (if (interval-sane? dims)
1196 (set! total-ext (interval-union total-ext dims)))))
1197 (unite-delims (1- l)))))
1200 (ly:side-position-interface::x-aligned-side grob)
1202 (- (interval-length total-ext)))))
1204 (define-public (system-start-text::calc-y-offset grob)
1206 (define (live-elements-list me)
1207 (let ((elements (ly:grob-object me 'elements)))
1209 (filter! grob::is-live?
1210 (ly:grob-array->list elements))))
1212 (let* ((left-bound (ly:spanner-bound grob LEFT))
1213 (live-elts (live-elements-list grob))
1214 (system (ly:grob-system grob))
1215 (extent empty-interval))
1217 (if (and (pair? live-elts)
1218 (interval-sane? (ly:grob-extent grob system Y)))
1219 (let get-extent ((lst live-elts))
1221 (let ((axis-group (car lst)))
1223 (if (and (ly:spanner? axis-group)
1224 (equal? (ly:spanner-bound axis-group LEFT)
1226 (set! extent (add-point extent
1227 (ly:grob-relative-coordinate
1228 axis-group system Y))))
1229 (get-extent (cdr lst)))))
1230 ;; no live axis group(s) for this instrument name -> remove from system
1231 (ly:grob-suicide! grob))
1234 (ly:self-alignment-interface::y-aligned-on-self grob)
1235 (interval-center extent))))
1238 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1239 ;; axis group interface
1241 (define-public axis-group-interface::height
1242 (ly:make-unpure-pure-container
1243 ly:axis-group-interface::height
1244 ly:axis-group-interface::pure-height))
1246 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1249 ;; Calculate the gaps between ambitus heads and ends of ambitus line.
1250 ;; Start by determining desired length of the ambitus line (based on
1251 ;; length-fraction property), calc gap from that and make sure that
1252 ;; it doesn't exceed maximum allowed value.
1254 (define-public (ambitus-line::calc-gap grob)
1255 (let ((heads (ly:grob-object grob 'note-heads)))
1257 (if (and (ly:grob-array? heads)
1258 (= (ly:grob-array-length heads) 2))
1259 (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
1260 (head-down (ly:grob-array-ref heads 0))
1261 (head-up (ly:grob-array-ref heads 1))
1262 (fraction (ly:grob-property grob 'length-fraction 0.7))
1263 (max-gap (ly:grob-property grob 'maximum-gap 0.45))
1264 ;; distance between noteheads:
1265 (distance (- (interval-start (ly:grob-extent head-up common Y))
1266 (interval-end (ly:grob-extent head-down common Y))))
1267 (gap (* 0.5 distance (- 1 fraction))))
1272 ;; Print a line connecting ambitus heads:
1274 (define-public (ambitus::print grob)
1275 (let ((heads (ly:grob-object grob 'note-heads)))
1277 (if (and (ly:grob-array? heads)
1278 (= (ly:grob-array-length heads) 2))
1279 (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
1280 (head-down (ly:grob-array-ref heads 0))
1281 (head-up (ly:grob-array-ref heads 1))
1282 ;; The value used when 'gap' property cannot be read is small
1283 ;; to make sure that ambitus of a fifth will have a visible line.
1284 (gap (ly:grob-property grob 'gap 0.25))
1285 (point-min (+ (interval-end (ly:grob-extent head-down common Y))
1287 (point-max (- (interval-start (ly:grob-extent head-up common Y))
1290 (if (< (+ point-min 0.1) point-max) ; don't print lines shorter than 0.1ss
1291 (let* ((layout (ly:grob-layout grob))
1292 (line-thick (ly:output-def-lookup layout 'line-thickness))
1293 (blot (ly:output-def-lookup layout 'blot-diameter))
1294 (grob-thick (ly:grob-property grob 'thickness 2))
1295 (width (* line-thick grob-thick))
1296 (x-ext (symmetric-interval (/ width 2)))
1297 (y-ext (cons point-min point-max))
1298 (line (ly:round-filled-box x-ext y-ext blot))
1299 (y-coord (ly:grob-relative-coordinate grob common Y)))
1301 (ly:stencil-translate-axis line (- y-coord) Y))
1304 (ly:grob-suicide! grob)
1307 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1308 ;; laissez-vibrer tie
1310 ;; needed so we can make laissez-vibrer a pure print
1312 (define-public (laissez-vibrer::print grob)
1313 (ly:tie::print grob))
1315 (define-public (semi-tie::calc-cross-staff grob)
1316 (let* ((note-head (ly:grob-object grob 'note-head))
1317 (stem (ly:grob-object note-head 'stem)))
1318 (and (ly:grob? stem)
1319 (ly:grob-property stem 'cross-staff #f))))
1321 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1324 (define-public (volta-bracket-interface::pure-height grob start end)
1325 (let ((edge-height (ly:grob-property grob 'edge-height)))
1326 (if (number-pair? edge-height)
1327 (let ((smaller (min (car edge-height) (cdr edge-height)))
1328 (larger (max (car edge-height) (cdr edge-height))))
1329 (interval-union '(0 . 0) (cons smaller larger)))