1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 1998--2011 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 (grob::x-parent-width grob)
30 (ly:grob-property (ly:grob-parent grob X) 'X-extent))
32 (define-public (make-stencil-boxer thickness padding callback)
33 "Return function that adds a box around the grob passed as argument."
35 (box-stencil (callback grob) thickness padding)))
37 (define-public (make-stencil-circler thickness padding callback)
38 "Return function that adds a circle around the grob passed as argument."
40 (circle-stencil (callback grob) thickness padding)))
42 (define-public (print-circled-text-callback grob)
43 (grob-interpret-markup grob (make-circle-markup
44 (ly:grob-property grob 'text))))
46 (define-public (event-cause grob)
47 (let ((cause (ly:grob-property grob 'cause)))
50 ((ly:stream-event? cause) cause)
51 ((ly:grob? cause) (event-cause cause))
54 (define-public (grob-interpret-markup grob text)
55 (let* ((layout (ly:grob-layout grob))
56 (defs (ly:output-def-lookup layout 'text-font-defaults))
57 (props (ly:grob-alist-chain grob defs)))
59 (ly:text-interface::interpret-markup layout props text)))
62 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
65 ;; calculates each slope of a broken beam individually
66 (define-public (beam::place-broken-parts-individually grob)
67 (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
69 ;; calculates the slope of a beam as a single unit,
70 ;; even if it is broken. this assures that the beam
71 ;; will pick up where it left off after a line break
72 (define-public (beam::align-with-broken-parts grob)
73 (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
75 ;; uses the broken beam style from edition peters combines the
76 ;; values of place-broken-parts-individually and align-with-broken-parts above,
77 ;; favoring place-broken-parts-individually when the beam naturally has a steeper
78 ;; incline and align-with-broken-parts when the beam is flat
79 (define-public (beam::slope-like-broken-parts grob)
81 (/ (- (cdr y) (car y)) (- (cdr x) (car x))))
82 (let* ((quant1 (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
83 (original (ly:grob-original grob))
84 (siblings (if (ly:grob? original)
85 (ly:spanner-broken-into original)
89 (let* ((quant2 (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
90 (x-span (ly:grob-property grob 'X-positions))
91 (slope1 (slope quant1 x-span))
92 (slope2 (slope quant2 x-span))
93 (quant2 (if (not (= (sign slope1) (sign slope2)))
96 (factor (/ (atan (abs slope1)) PI-OVER-TWO))
99 (+ (* (x quant1) (- 1 factor))
100 (* (x quant2) factor)))
102 (ly:beam::quanting grob base #f)))))
104 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
107 (define-public (script-or-side-position-cross-staff g)
109 (ly:script-interface::calc-cross-staff g)
110 (ly:side-position-interface::calc-cross-staff g)))
113 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
116 (define-public (stem::calc-duration-log grob)
118 (ly:event-property (event-cause grob) 'duration)))
120 (define-public (stem::length grob)
121 (let* ((ss (ly:staff-symbol-staff-space grob))
122 (beg (ly:grob-property grob 'stem-begin-position))
123 (beam (ly:grob-object grob 'beam)))
125 (abs (- (ly:stem::calc-stem-end-position grob) beg))
127 (ly:programming-error
128 "stem::length called but will not be used for beamed stem.")
131 (define-public (stem::pure-length grob beg end)
132 (let* ((ss (ly:staff-symbol-staff-space grob))
133 (beg (ly:grob-pure-property grob 'stem-begin-position 0 1000)))
134 (abs (- (ly:stem::pure-calc-stem-end-position grob 0 2147483646) beg))))
136 (define-public (note-head::calc-duration-log grob)
139 (ly:event-property (event-cause grob) 'duration))))
141 (define-public (dots::calc-dot-count grob)
142 (ly:duration-dot-count
143 (ly:event-property (event-cause grob) 'duration)))
145 (define-public (dots::calc-staff-position grob)
146 (let* ((head (ly:grob-parent grob Y))
147 (log (ly:grob-property head 'duration-log)))
150 ((or (not (grob::has-interface head 'rest-interface))
151 (not (integer? log))) 0)
159 ;; Kept separate from note-head::calc-glyph-name to allow use by
160 ;; markup commands \note and \note-by-number
161 (define-public (select-head-glyph style log)
162 "Select a note head glyph string based on note head style @var{style}
163 and duration-log @var{log}."
165 ;; "default" style is directly handled in note-head.cc as a
166 ;; special case (HW says, mainly for performance reasons).
167 ;; Therefore, style "default" does not appear in this case
169 ((xcircle) "2xcircle")
170 ((harmonic) "0harmonic")
171 ((harmonic-black) "2harmonic")
172 ((harmonic-mixed) (if (<= log 1) "0harmonic"
175 ;; Oops, I actually would not call this "baroque", but, for
176 ;; backwards compatibility to 1.4, this is supposed to take
177 ;; brevis, longa and maxima from the neo-mensural font and all
178 ;; other note heads from the default font. -- jr
180 (string-append (number->string log) "neomensural")
181 (number->string log)))
183 ;; Like default, but brevis is drawn with double vertical lines
185 (string-append (number->string log) "double")
186 (number->string log)))
188 (string-append (number->string log) (symbol->string style)))
191 (string-append (number->string log) "mensural")
192 (string-append (number->string log) (symbol->string style))))
195 (string-append (number->string log) "blackmensural")
196 (string-append (number->string log) (symbol->string style))))
199 (string-append (number->string log) "semimensural")
200 (string-append (number->string log) "petrucci")))
202 (string-append (number->string log) (symbol->string style)))
204 (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
205 (symbol->string style)
206 (string-append (number->string (max 0 log))
207 (symbol->string style))))))
209 (define-public (note-head::calc-glyph-name grob)
210 (let ((style (ly:grob-property grob 'style))
211 (log (min 2 (ly:grob-property grob 'duration-log))))
213 (select-head-glyph style log)))
215 (define-public (note-head::brew-ez-stencil grob)
216 (let* ((log (ly:grob-property grob 'duration-log))
217 (pitch (ly:event-property (event-cause grob) 'pitch))
218 (pitch-index (ly:pitch-notename pitch))
219 (note-names (ly:grob-property grob 'note-names))
220 (pitch-string (if (and (vector? note-names)
221 (> (vector-length note-names) pitch-index))
222 (vector-ref note-names pitch-index)
225 (+ (modulo (+ pitch-index 2) 7)
226 (char->integer #\A))))))
227 (staff-space (ly:staff-symbol-staff-space grob))
228 (line-thickness (ly:staff-symbol-line-thickness grob))
229 (stem (ly:grob-object grob 'stem))
230 (stem-thickness (* (if (ly:grob? stem)
231 (ly:grob-property stem 'thickness)
234 (radius (/ (+ staff-space line-thickness) 2))
235 (letter (markup #:center-align #:vcenter pitch-string))
236 (filled-circle (markup #:draw-circle radius 0 #t)))
238 (ly:stencil-translate-axis
239 (grob-interpret-markup
244 (make-with-color-markup white letter))
248 (make-with-color-markup white (make-draw-circle-markup
249 (- radius stem-thickness) 0 #t)))
253 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
256 (define-public (make-rhythmic-location bar-num num den)
258 bar-num (ly:make-moment num den)))
260 (define-public (rhythmic-location? a)
263 (ly:moment? (cdr a))))
265 (define-public (make-graceless-rhythmic-location loc)
266 (make-rhythmic-location
268 (ly:moment-main-numerator (rhythmic-location-measure-position loc))
269 (ly:moment-main-denominator (rhythmic-location-measure-position loc))))
271 (define-public rhythmic-location-measure-position cdr)
272 (define-public rhythmic-location-bar-number car)
274 (define-public (rhythmic-location<? a b)
276 ((< (car a) (car b)) #t)
277 ((> (car a) (car b)) #f)
279 (ly:moment<? (cdr a) (cdr b)))))
281 (define-public (rhythmic-location<=? a b)
282 (not (rhythmic-location<? b a)))
283 (define-public (rhythmic-location>=? a b)
284 (rhythmic-location<? a b))
285 (define-public (rhythmic-location>? a b)
286 (rhythmic-location<? b a))
288 (define-public (rhythmic-location=? a b)
289 (and (rhythmic-location<=? a b)
290 (rhythmic-location<=? b a)))
292 (define-public (rhythmic-location->file-string a)
293 (ly:format "~a.~a.~a"
295 (ly:moment-main-numerator (cdr a))
296 (ly:moment-main-denominator (cdr a))))
298 (define-public (rhythmic-location->string a)
299 (ly:format "bar ~a ~a"
301 (ly:moment->string (cdr a))))
303 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
306 (define-public all-visible #(#t #t #t))
307 (define-public begin-of-line-invisible #(#t #t #f))
308 (define-public center-invisible #(#t #f #t))
309 (define-public end-of-line-invisible #(#f #t #t))
310 (define-public begin-of-line-visible #(#f #f #t))
311 (define-public center-visible #(#f #t #f))
312 (define-public end-of-line-visible #(#t #f #f))
313 (define-public all-invisible #(#f #f #f))
314 (define-public (inherit-x-parent-visibility grob)
315 (let ((parent (ly:grob-parent grob X)))
316 (ly:grob-property parent 'break-visibility all-invisible)))
317 (define-public (inherit-y-parent-visibility grob)
318 (let ((parent (ly:grob-parent grob X)))
319 (ly:grob-property parent 'break-visibility)))
322 (define-public spanbar-begin-of-line-invisible #(#t #f #f))
325 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
329 ;; How should a bar line behave at a break?
330 (define bar-glyph-alist
331 '((":|:" . (":|" . "|:"))
332 (":|.|:" . (":|" . "|:"))
333 (":|.:" . (":|" . "|:"))
334 ("||:" . ("||" . "|:"))
335 ("dashed" . ("dashed" . '()))
337 ("||:" . ("||" . "|:"))
339 ("|:" . ("|" . "|:"))
342 ;; hmm... should we end with a bar line here?
343 (".|" . ("|" . ".|"))
346 (".|." . (".|." . ()))
347 ("|.|" . ("|.|" . ()))
352 ("empty" . (() . ()))
353 ("brace" . (() . "brace"))
354 ("bracket" . (() . "bracket"))
360 (":|S" . (":|" . "S"))
361 (":|S." . (":|S" . ()))
362 ("S|:" . ("S" . "|:"))
363 (".S|:" . ("|" . "S|:"))
364 (":|S|:" . (":|" . "S|:"))
365 (":|S.|:" . (":|S" . "|:"))))
367 (define-public (bar-line::calc-glyph-name grob)
368 (let* ((glyph (ly:grob-property grob 'glyph))
369 (dir (ly:item-break-dir grob))
370 (result (assoc-get glyph bar-glyph-alist))
371 (glyph-name (if (= dir CENTER)
374 (string? (index-cell result dir)))
375 (index-cell result dir)
379 (define-public (bar-line::calc-break-visibility grob)
380 (let* ((glyph (ly:grob-property grob 'glyph))
381 (result (assoc-get glyph bar-glyph-alist)))
384 (vector (string? (car result)) #t (string? (cdr result)))
387 (define-public (shift-right-at-line-begin g)
388 "Shift an item to the right, but only at the start of the line."
389 (if (and (ly:item? g)
390 (equal? (ly:item-break-dir g) RIGHT))
391 (ly:grob-translate-axis! g 3.5 X)))
393 (define-public (span-bar-stub::height grob)
394 (ly:grob-property grob 'elements-filtered)
395 (ly:axis-group-interface::height grob))
397 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
400 (define-public (tuplet-number::calc-direction grob)
401 (ly:tuplet-bracket::calc-direction (ly:grob-object grob 'bracket)))
403 (define-public (tuplet-number::calc-denominator-text grob)
404 (number->string (ly:event-property (event-cause grob) 'denominator)))
406 (define-public (tuplet-number::calc-fraction-text grob)
407 (let ((ev (event-cause grob)))
410 (ly:event-property ev 'denominator)
411 (ly:event-property ev 'numerator))))
413 ;; a formatter function, which is simply a wrapper around an existing
414 ;; tuplet formatter function. It takes the value returned by the given
415 ;; function and appends a note of given length.
416 (define-public ((tuplet-number::append-note-wrapper function note) grob)
417 (let ((txt (if function (function grob) #f)))
420 (markup txt #:fontsize -5 #:note note UP)
421 (markup #:fontsize -5 #:note note UP))))
423 ;; Print a tuplet denominator with a different number than the one derived from
424 ;; the actual tuplet fraction
425 (define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
427 (number->string (if denominator
429 (ly:event-property (event-cause grob) 'denominator))))
431 ;; Print a tuplet fraction with different numbers than the ones derived from
432 ;; the actual tuplet fraction
433 (define-public ((tuplet-number::non-default-tuplet-fraction-text
434 denominator numerator) grob)
435 (let* ((ev (event-cause grob))
436 (den (if denominator denominator (ly:event-property ev 'denominator)))
437 (num (if numerator numerator (ly:event-property ev 'numerator))))
439 (format #f "~a:~a" den num)))
441 ;; Print a tuplet fraction with note durations appended to the numerator and the
443 (define-public ((tuplet-number::fraction-with-notes
444 denominatornote numeratornote) grob)
445 (let* ((ev (event-cause grob))
446 (denominator (ly:event-property ev 'denominator))
447 (numerator (ly:event-property ev 'numerator)))
449 ((tuplet-number::non-default-fraction-with-notes
450 denominator denominatornote numerator numeratornote) grob)))
452 ;; Print a tuplet fraction with note durations appended to the numerator and the
454 (define-public ((tuplet-number::non-default-fraction-with-notes
455 denominator denominatornote numerator numeratornote) grob)
456 (let* ((ev (event-cause grob))
457 (den (if denominator denominator (ly:event-property ev 'denominator)))
458 (num (if numerator numerator (ly:event-property ev 'numerator))))
460 (make-concat-markup (list
461 (make-simple-markup (format #f "~a" den))
462 (markup #:fontsize -5 #:note denominatornote UP)
463 (make-simple-markup " : ")
464 (make-simple-markup (format #f "~a" num))
465 (markup #:fontsize -5 #:note numeratornote UP)))))
468 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
471 (define-public (color? x)
474 (apply eq? #t (map number? x))
475 (apply eq? #t (map (lambda (y) (<= 0 y 1)) x))))
477 (define-public (rgb-color r g b) (list r g b))
480 (define-public black '(0.0 0.0 0.0))
481 (define-public white '(1.0 1.0 1.0))
482 (define-public red '(1.0 0.0 0.0))
483 (define-public green '(0.0 1.0 0.0))
484 (define-public blue '(0.0 0.0 1.0))
485 (define-public cyan '(0.0 1.0 1.0))
486 (define-public magenta '(1.0 0.0 1.0))
487 (define-public yellow '(1.0 1.0 0.0))
489 (define-public grey '(0.5 0.5 0.5))
490 (define-public darkred '(0.5 0.0 0.0))
491 (define-public darkgreen '(0.0 0.5 0.0))
492 (define-public darkblue '(0.0 0.0 0.5))
493 (define-public darkcyan '(0.0 0.5 0.5))
494 (define-public darkmagenta '(0.5 0.0 0.5))
495 (define-public darkyellow '(0.5 0.5 0.0))
498 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
501 (define-public (key-signature-interface::alteration-position step alter
503 ;; TODO: memoize - this is mostly constant.
505 ;; fes, ges, as and bes typeset in lower octave
506 (define FLAT_TOP_PITCH 2)
508 ;; ais and bis typeset in lower octave
509 (define SHARP_TOP_PITCH 4)
512 (+ (cdr step) (* (car step) 7) c0-position)
513 (let* ((from-bottom-pos (modulo (+ 4 49 c0-position) 7))
515 (c0 (- from-bottom-pos 4)))
519 (or (> p FLAT_TOP_PITCH) (> (+ p c0) 4)) (> (+ p c0) 1))
521 (or (> p SHARP_TOP_PITCH) (> (+ p c0) 5)) (> (+ p c0) 2)))
523 ;; Typeset below c_position
526 ;; Provide for the four cases in which there's a glitch
527 ;; it's a hack, but probably not worth
528 ;; the effort of finding a nicer solution.
531 ((and (= c0 2) (= p 3) (> alter 0))
533 ((and (= c0 -3) (= p -1) (> alter 0))
535 ((and (= c0 -4) (= p -1) (< alter 0))
537 ((and (= c0 -2) (= p -3) (< alter 0))
543 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
546 (define-public (numbered-footnotes int)
547 (markup #:tiny (number->string (+ 1 int))))
549 (define-public (symbol-footnotes int)
550 (define (helper symbols out idx n)
554 (string-append out (list-ref symbols idx))
557 (markup #:tiny (helper '("*" "†" "‡" "§" "¶")
560 (+ 1 (quotient int 5)))))
562 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
565 (define-public (accidental-interface::calc-alteration grob)
566 (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
568 (define-public cancellation-glyph-name-alist
569 '((0 . "accidentals.natural")))
571 (define-public standard-alteration-glyph-name-alist
573 ;; ordered for optimal performance.
574 (0 . "accidentals.natural")
575 (-1/2 . "accidentals.flat")
576 (1/2 . "accidentals.sharp")
578 (1 . "accidentals.doublesharp")
579 (-1 . "accidentals.flatflat")
581 (3/4 . "accidentals.sharp.slashslash.stemstemstem")
582 (1/4 . "accidentals.sharp.slashslash.stem")
583 (-1/4 . "accidentals.mirroredflat")
584 (-3/4 . "accidentals.mirroredflat.flat")))
586 ;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
587 (define-public alteration-default-glyph-name-alist
588 standard-alteration-glyph-name-alist)
590 (define-public makam-alteration-glyph-name-alist
591 '((1 . "accidentals.doublesharp")
592 (8/9 . "accidentals.sharp.slashslashslash.stemstem")
593 (5/9 . "accidentals.sharp.slashslashslash.stem")
594 (4/9 . "accidentals.sharp")
595 (1/9 . "accidentals.sharp.slashslash.stem")
596 (0 . "accidentals.natural")
597 (-1/9 . "accidentals.mirroredflat")
598 (-4/9 . "accidentals.flat.slash")
599 (-5/9 . "accidentals.flat")
600 (-8/9 . "accidentals.flat.slashslash")
601 (-1 . "accidentals.flatflat")))
603 (define-public alteration-hufnagel-glyph-name-alist
604 '((-1/2 . "accidentals.hufnagelM1")
605 (0 . "accidentals.vaticana0")
606 (1/2 . "accidentals.mensural1")))
608 (define-public alteration-medicaea-glyph-name-alist
609 '((-1/2 . "accidentals.medicaeaM1")
610 (0 . "accidentals.vaticana0")
611 (1/2 . "accidentals.mensural1")))
613 (define-public alteration-vaticana-glyph-name-alist
614 '((-1/2 . "accidentals.vaticanaM1")
615 (0 . "accidentals.vaticana0")
616 (1/2 . "accidentals.mensural1")))
618 (define-public alteration-mensural-glyph-name-alist
619 '((-1/2 . "accidentals.mensuralM1")
620 (0 . "accidentals.vaticana0")
621 (1/2 . "accidentals.mensural1")))
624 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
625 ;; * Pitch Trill Heads
628 (define-public (parentheses-item::calc-parenthesis-stencils grob)
629 (let* ((font (ly:grob-default-font grob))
630 (lp (ly:font-get-glyph font "accidentals.leftparen"))
631 (rp (ly:font-get-glyph font "accidentals.rightparen")))
635 (define-public (parentheses-item::calc-angled-bracket-stencils grob)
636 (let* ((parent (ly:grob-parent grob Y))
637 (y-extent (ly:grob-extent parent parent Y))
638 (half-thickness 0.05) ; should it be a property?
639 (width 0.5) ; should it be a property?
640 (angularity 1.5) ; makes angle brackets
641 (white-padding 0.1) ; should it be a property?
642 (lp (ly:stencil-aligned-to
643 (ly:stencil-aligned-to
644 (make-parenthesis-stencil y-extent
651 (interval-widen (ly:stencil-extent lp X) white-padding))
652 (rp (ly:stencil-aligned-to
653 (ly:stencil-aligned-to
654 (make-parenthesis-stencil y-extent
661 (interval-widen (ly:stencil-extent rp X) white-padding)))
662 (set! lp (ly:make-stencil (ly:stencil-expr lp)
664 (ly:stencil-extent lp Y)))
665 (set! rp (ly:make-stencil (ly:stencil-expr rp)
667 (ly:stencil-extent rp Y)))
668 (list (stencil-whiteout lp)
669 (stencil-whiteout rp))))
671 (define (parenthesize-elements grob . rest)
672 (let* ((refp (if (null? rest)
675 (elts (ly:grob-object grob 'elements))
676 (x-ext (ly:relative-group-extent elts refp X))
677 (stencils (ly:grob-property grob 'stencils))
680 (padding (ly:grob-property grob 'padding 0.1)))
683 (ly:stencil-translate-axis lp (- (car x-ext) padding) X)
684 (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
687 (define-public (parentheses-item::print me)
688 (let* ((elts (ly:grob-object me 'elements))
689 (y-ref (ly:grob-common-refpoint-of-array me elts Y))
690 (x-ref (ly:grob-common-refpoint-of-array me elts X))
691 (stencil (parenthesize-elements me x-ref))
692 (elt-y-ext (ly:relative-group-extent elts y-ref Y))
693 (y-center (interval-center elt-y-ext)))
695 (ly:stencil-translate
698 (- (ly:grob-relative-coordinate me x-ref X))
699 (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
703 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
706 (define-public (chain-grob-member-functions grob value . funcs)
709 (set! value (func grob value)))
715 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
718 (define-public (bend::print spanner)
720 (< (abs (- a b)) 0.01))
722 (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
723 (left-span (ly:spanner-bound spanner LEFT))
724 (dots (if (and (grob::has-interface left-span 'note-head-interface)
725 (ly:grob? (ly:grob-object left-span 'dot)))
726 (ly:grob-object left-span 'dot) #f))
728 (right-span (ly:spanner-bound spanner RIGHT))
729 (thickness (* (ly:grob-property spanner 'thickness)
730 (ly:output-def-lookup (ly:grob-layout spanner)
732 (padding (ly:grob-property spanner 'padding 0.5))
733 (common (ly:grob-common-refpoint right-span
734 (ly:grob-common-refpoint spanner
737 (common-y (ly:grob-common-refpoint spanner left-span Y))
738 (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
742 (interval-end (ly:grob-robust-relative-extent
747 (ly:grob-relative-coordinate dots common-y Y)
748 (ly:grob-relative-coordinate spanner common-y Y)))
750 (ly:grob-robust-relative-extent dots common X))
751 ;; TODO: use real infinity constant.
753 (right-x (max (- (interval-start
754 (ly:grob-robust-relative-extent right-span common X))
756 (+ left-x minimum-length)))
757 (self-x (ly:grob-relative-coordinate spanner common X))
758 (dx (- right-x left-x))
759 (exp (list 'path thickness
767 ,dx ,(* 0.66 delta-y)
772 (cons (- left-x self-x) (- right-x self-x))
773 (cons (min 0 delta-y)
777 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
780 (define-public (grace-spacing::calc-shortest-duration grob)
781 (let* ((cols (ly:grob-object grob 'columns))
784 (ly:moment-sub (ly:grob-property
785 (ly:grob-array-ref cols (1+ idx)) 'when)
787 (ly:grob-array-ref cols idx) 'when))))
789 (moment-min (lambda (x y)
792 (if (ly:moment<? x y)
798 (fold moment-min #f (map get-difference
799 (iota (1- (ly:grob-array-length cols)))))))
802 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
805 (define-public (fingering::calc-text grob)
806 (let* ((event (event-cause grob))
807 (digit (ly:event-property event 'digit)))
810 (ly:input-message (ly:event-property event 'origin)
811 "Warning: Fingering notation for finger number ~a"
814 (number->string digit 10)))
816 (define-public (string-number::calc-text grob)
817 (let ((digit (ly:event-property (event-cause grob) 'string-number)))
819 (number->string digit 10)))
821 (define-public (stroke-finger::calc-text grob)
822 (let* ((digit (ly:event-property (event-cause grob) 'digit))
823 (text (ly:event-property (event-cause grob) 'text)))
827 (vector-ref (ly:grob-property grob 'digit-names)
828 (1- (max (min 5 digit) 1))))))
831 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
834 (define-public (hairpin::calc-grow-direction grob)
835 (if (eq? (ly:event-property (event-cause grob) 'class) 'decrescendo-event)
839 (define-public (dynamic-text-spanner::before-line-breaking grob)
840 "Monitor left bound of @code{DynamicTextSpanner} for absolute dynamics.
841 If found, ensure @code{DynamicText} does not collide with spanner text by
842 changing @code{'attach-dir} and @code{'padding}. Reads the
843 @code{'right-padding} property of @code{DynamicText} to fine tune space
844 between the two text elements."
845 (let ((left-bound (ly:spanner-bound grob LEFT)))
846 (if (grob::has-interface left-bound 'dynamic-text-interface)
847 (let* ((details (ly:grob-property grob 'bound-details))
848 (left-details (ly:assoc-get 'left details))
849 (my-padding (ly:assoc-get 'padding left-details))
850 (script-padding (ly:grob-property left-bound 'right-padding 0)))
852 (and (number? my-padding)
853 (ly:grob-set-nested-property! grob
854 '(bound-details left attach-dir)
856 (ly:grob-set-nested-property! grob
857 '(bound-details left padding)
858 (+ my-padding script-padding)))))))
861 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
864 (define-public (lyric-text::print grob)
865 "Allow interpretation of tildes as lyric tieing marks."
867 (let ((text (ly:grob-property grob 'text)))
869 (grob-interpret-markup grob (if (string? text)
870 (make-tied-lyric-markup text)
873 (define-public ((grob::calc-property-by-copy prop) grob)
874 (ly:event-property (event-cause grob) prop))
877 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
880 (define-public (fret-board::calc-stencil grob)
881 (grob-interpret-markup
883 (make-fret-diagram-verbose-markup
884 (ly:grob-property grob 'dot-placement-list))))
887 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
890 (define-public (script-interface::calc-x-offset grob)
891 (ly:grob-property grob 'positioning-done)
892 (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
894 (ly:self-alignment-interface::centered-on-x-parent grob))
895 (note-head-grob (ly:grob-parent grob X))
896 (stem-grob (ly:grob-object note-head-grob 'stem)))
898 (+ note-head-location
899 ;; If the property 'toward-stem-shift is defined and the script
900 ;; has the same direction as the stem, move the script accordingly.
901 ;; Since scripts can also be over skips, we need to check whether
902 ;; the grob has a stem at all.
903 (if (ly:grob? stem-grob)
904 (let ((dir1 (ly:grob-property grob 'direction))
905 (dir2 (ly:grob-property stem-grob 'direction)))
906 (if (equal? dir1 dir2)
907 (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
909 (ly:grob-relative-coordinate stem-grob common-refp X)))
910 (* shift (- stem-location note-head-location)))
915 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
918 (define-public (system-start-text::print grob)
919 (let* ((left-bound (ly:spanner-bound grob LEFT))
920 (left-mom (ly:grob-property left-bound 'when))
921 (name (if (moment<=? left-mom ZERO-MOMENT)
922 (ly:grob-property grob 'long-text)
923 (ly:grob-property grob 'text))))
925 (if (and (markup? name)
926 (!= (ly:item-break-dir left-bound) CENTER))
928 (grob-interpret-markup grob name)
929 (ly:grob-suicide! grob))))
931 (define-public (system-start-text::calc-x-offset grob)
932 (let* ((left-bound (ly:spanner-bound grob LEFT))
933 (left-mom (ly:grob-property left-bound 'when))
934 (layout (ly:grob-layout grob))
935 (indent (ly:output-def-lookup layout
936 (if (moment<=? left-mom ZERO-MOMENT)
940 (system (ly:grob-system grob))
941 (my-extent (ly:grob-extent grob system X))
942 (elements (ly:grob-object system 'elements))
943 (common (ly:grob-common-refpoint-of-array system elements X))
944 (total-ext empty-interval)
945 (align-x (ly:grob-property grob 'self-alignment-X 0))
946 (padding (min 0 (- (interval-length my-extent) indent)))
947 (right-padding (- padding
948 (/ (* padding (1+ align-x)) 2))))
950 ;; compensate for the variation in delimiter extents by
951 ;; calculating an X-offset correction based on united extents
952 ;; of all delimiters in this system
953 (let unite-delims ((l (ly:grob-array-length elements)))
955 (let ((elt (ly:grob-array-ref elements (1- l))))
957 (if (grob::has-interface elt 'system-start-delimiter-interface)
958 (let ((dims (ly:grob-extent elt common X)))
959 (if (interval-sane? dims)
960 (set! total-ext (interval-union total-ext dims)))))
961 (unite-delims (1- l)))))
964 (ly:side-position-interface::x-aligned-side grob)
966 (- (interval-length total-ext)))))
968 (define-public (system-start-text::calc-y-offset grob)
970 (define (live-elements-list me)
971 (let ((elements (ly:grob-object me 'elements)))
973 (filter! grob::is-live?
974 (ly:grob-array->list elements))))
976 (let* ((left-bound (ly:spanner-bound grob LEFT))
977 (live-elts (live-elements-list grob))
978 (system (ly:grob-system grob))
979 (extent empty-interval))
981 (if (and (pair? live-elts)
982 (interval-sane? (ly:grob-extent grob system Y)))
983 (let get-extent ((lst live-elts))
985 (let ((axis-group (car lst)))
987 (if (and (ly:spanner? axis-group)
988 (equal? (ly:spanner-bound axis-group LEFT)
990 (set! extent (add-point extent
991 (ly:grob-relative-coordinate
992 axis-group system Y))))
993 (get-extent (cdr lst)))))
994 ;; no live axis group(s) for this instrument name -> remove from system
995 (ly:grob-suicide! grob))
998 (ly:self-alignment-interface::y-aligned-on-self grob)
999 (interval-center extent))))
1002 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1005 (define-public (ambitus::print grob)
1006 (let ((heads (ly:grob-object grob 'note-heads)))
1008 (if (and (ly:grob-array? heads)
1009 (= (ly:grob-array-length heads) 2))
1010 (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
1011 (head-down (ly:grob-array-ref heads 0))
1012 (head-up (ly:grob-array-ref heads 1))
1013 (gap (ly:grob-property grob 'gap 0.35))
1014 (point-min (+ (interval-end (ly:grob-extent head-down common Y))
1016 (point-max (- (interval-start (ly:grob-extent head-up common Y))
1019 (if (< point-min point-max)
1020 (let* ((layout (ly:grob-layout grob))
1021 (line-thick (ly:output-def-lookup layout 'line-thickness))
1022 (blot (ly:output-def-lookup layout 'blot-diameter))
1023 (grob-thick (ly:grob-property grob 'thickness 2))
1024 (width (* line-thick grob-thick))
1025 (x-ext (symmetric-interval (/ width 2)))
1026 (y-ext (cons point-min point-max))
1027 (line (ly:round-filled-box x-ext y-ext blot))
1028 (y-coord (ly:grob-relative-coordinate grob common Y)))
1030 (ly:stencil-translate-axis line (- y-coord) Y))
1033 (ly:grob-suicide! grob)
1036 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1037 ;; laissez-vibrer tie
1039 ;; needed so we can make laissez-vibrer a pure print
1041 (define-public (laissez-vibrer::print grob)
1042 (ly:tie::print grob))