1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 1998--2010 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)
31 "Return function that adds a box around the grob passed as argument."
33 (box-stencil (callback grob) thickness padding)))
35 (define-public (make-stencil-circler thickness padding callback)
36 "Return function that adds a circle around the grob passed as argument."
38 (lambda (grob) (circle-stencil (callback grob) thickness padding)))
40 (define-public (print-circled-text-callback grob)
41 (grob-interpret-markup grob (make-circle-markup
42 (ly:grob-property grob 'text))))
44 (define-public (event-cause grob)
45 (let ((cause (ly:grob-property grob 'cause)))
48 ((ly:stream-event? cause) cause)
49 ((ly:grob? cause) (event-cause cause))
52 (define-public (grob-interpret-markup grob text)
53 (let* ((layout (ly:grob-layout grob))
54 (defs (ly:output-def-lookup layout 'text-font-defaults))
55 (props (ly:grob-alist-chain grob defs)))
57 (ly:text-interface::interpret-markup layout props text)))
60 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
63 (define-public (stem::calc-duration-log grob)
65 (ly:event-property (event-cause grob) 'duration)))
67 (define-public (note-head::calc-duration-log grob)
70 (ly:event-property (event-cause grob) 'duration))))
72 (define-public (dots::calc-dot-count grob)
73 (ly:duration-dot-count
74 (ly:event-property (event-cause grob) 'duration)))
76 (define-public (dots::calc-staff-position grob)
77 (let* ((head (ly:grob-parent grob Y))
78 (log (ly:grob-property head 'duration-log)))
81 ((or (not (grob::has-interface head 'rest-interface))
82 (not (integer? log))) 0)
90 ;; Kept separate from note-head::calc-glyph-name to allow use by
91 ;; markup commands \note and \note-by-number
92 (define-public (select-head-glyph style log)
93 "Select a note head glyph string based on note head style @var{style}
94 and duration-log @var{log}."
96 ;; "default" style is directly handled in note-head.cc as a
97 ;; special case (HW says, mainly for performance reasons).
98 ;; Therefore, style "default" does not appear in this case
100 ((xcircle) "2xcircle")
101 ((harmonic) "0harmonic")
102 ((harmonic-black) "2harmonic")
103 ((harmonic-mixed) (if (<= log 1) "0harmonic"
106 ;; Oops, I actually would not call this "baroque", but, for
107 ;; backwards compatibility to 1.4, this is supposed to take
108 ;; brevis, longa and maxima from the neo-mensural font and all
109 ;; other note heads from the default font. -- jr
111 (string-append (number->string log) "neomensural")
112 (number->string log)))
114 ;; Like default, but brevis is drawn with double vertical lines
116 (string-append (number->string log) "double")
117 (number->string log)))
119 (string-append (number->string log) (symbol->string style)))
122 (string-append (number->string log) "mensural")
123 (string-append (number->string log) (symbol->string style))))
125 (string-append (number->string log) (symbol->string style)))
127 (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
128 (symbol->string style)
129 (string-append (number->string (max 0 log))
130 (symbol->string style))))))
132 (define-public (note-head::calc-glyph-name grob)
133 (let ((style (ly:grob-property grob 'style))
134 (log (min 2 (ly:grob-property grob 'duration-log))))
136 (select-head-glyph style log)))
138 (define-public (note-head::brew-ez-stencil grob)
139 (let* ((log (ly:grob-property grob 'duration-log))
140 (pitch (ly:event-property (event-cause grob) 'pitch))
141 (pitch-index (ly:pitch-notename pitch))
142 (note-names (ly:grob-property grob 'note-names))
143 (pitch-string (if (and (vector? note-names)
144 (> (vector-length note-names) pitch-index))
145 (vector-ref note-names pitch-index)
148 (+ (modulo (+ pitch-index 2) 7)
149 (char->integer #\A))))))
150 (staff-space (ly:staff-symbol-staff-space grob))
151 (line-thickness (ly:staff-symbol-line-thickness grob))
152 (stem (ly:grob-object grob 'stem))
153 (stem-thickness (* (if (ly:grob? stem)
154 (ly:grob-property stem 'thickness)
157 (radius (/ (+ staff-space line-thickness) 2))
158 (letter (markup #:center-align #:vcenter pitch-string))
159 (filled-circle (markup #:draw-circle radius 0 #t)))
161 (ly:stencil-translate-axis
162 (grob-interpret-markup
167 (make-with-color-markup white letter))
171 (make-with-color-markup white (make-draw-circle-markup
172 (- radius stem-thickness) 0 #t)))
176 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
179 (define-public (make-rhythmic-location bar-num num den)
181 bar-num (ly:make-moment num den)))
183 (define-public (rhythmic-location? a)
186 (ly:moment? (cdr a))))
188 (define-public (make-graceless-rhythmic-location loc)
189 (make-rhythmic-location
191 (ly:moment-main-numerator (rhythmic-location-measure-position loc))
192 (ly:moment-main-denominator (rhythmic-location-measure-position loc))))
194 (define-public rhythmic-location-measure-position cdr)
195 (define-public rhythmic-location-bar-number car)
197 (define-public (rhythmic-location<? a b)
199 ((< (car a) (car b)) #t)
200 ((> (car a) (car b)) #f)
202 (ly:moment<? (cdr a) (cdr b)))))
204 (define-public (rhythmic-location<=? a b)
205 (not (rhythmic-location<? b a)))
206 (define-public (rhythmic-location>=? a b)
207 (rhythmic-location<? a b))
208 (define-public (rhythmic-location>? a b)
209 (rhythmic-location<? b a))
211 (define-public (rhythmic-location=? a b)
212 (and (rhythmic-location<=? a b)
213 (rhythmic-location<=? b a)))
215 (define-public (rhythmic-location->file-string a)
216 (ly:format "~a.~a.~a"
218 (ly:moment-main-numerator (cdr a))
219 (ly:moment-main-denominator (cdr a))))
221 (define-public (rhythmic-location->string a)
222 (ly:format "bar ~a ~a"
224 (ly:moment->string (cdr a))))
226 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
229 (define-public all-visible #(#t #t #t))
230 (define-public begin-of-line-invisible #(#t #t #f))
231 (define-public center-invisible #(#t #f #t))
232 (define-public end-of-line-invisible #(#f #t #t))
233 (define-public begin-of-line-visible #(#f #f #t))
234 (define-public center-visible #(#f #t #f))
235 (define-public end-of-line-visible #(#t #f #f))
236 (define-public all-invisible #(#f #f #f))
238 (define-public spanbar-begin-of-line-invisible #(#t #f #f))
241 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
245 ;; How should a bar line behave at a break?
246 (define bar-glyph-alist
247 '((":|:" . (":|" . "|:"))
248 (":|.|:" . (":|" . "|:"))
249 (":|.:" . (":|" . "|:"))
250 ("||:" . ("||" . "|:"))
251 ("dashed" . ("dashed" . '()))
253 ("||:" . ("||" . "|:"))
255 ("|:" . ("|" . "|:"))
258 ;; hmm... should we end with a bar line here?
259 (".|" . ("|" . ".|"))
262 (".|." . (".|." . ()))
263 ("|.|" . ("|.|" . ()))
268 ("empty" . (() . ()))
269 ("brace" . (() . "brace"))
270 ("bracket" . (() . "bracket"))
276 (":|S" . (":|" . "S"))
277 (":|S." . (":|S" . ()))
278 ("S|:" . ("S" . "|:"))
279 (".S|:" . ("|" . "S|:"))
280 (":|S|:" . (":|" . "S|:"))
281 (":|S.|:" . (":|S" . "|:"))))
283 (define-public (bar-line::calc-glyph-name grob)
284 (let* ((glyph (ly:grob-property grob 'glyph))
285 (dir (ly:item-break-dir grob))
286 (result (assoc-get glyph bar-glyph-alist))
287 (glyph-name (if (= dir CENTER)
290 (string? (index-cell result dir)))
291 (index-cell result dir)
295 (define-public (bar-line::calc-break-visibility grob)
296 (let* ((glyph (ly:grob-property grob 'glyph))
297 (result (assoc-get glyph bar-glyph-alist)))
300 (vector (string? (car result)) #t (string? (cdr result)))
303 (define-public (shift-right-at-line-begin g)
304 "Shift an item to the right, but only at the start of the line."
305 (if (and (ly:item? g)
306 (equal? (ly:item-break-dir g) RIGHT))
307 (ly:grob-translate-axis! g 3.5 X)))
310 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
313 (define-public (tuplet-number::calc-denominator-text grob)
314 (number->string (ly:event-property (event-cause grob) 'denominator)))
316 (define-public (tuplet-number::calc-fraction-text grob)
317 (let ((ev (event-cause grob)))
320 (ly:event-property ev 'denominator)
321 (ly:event-property ev 'numerator))))
323 ;; a formatter function, which is simply a wrapper around an existing
324 ;; tuplet formatter function. It takes the value returned by the given
325 ;; function and appends a note of given length.
326 (define-public ((tuplet-number::append-note-wrapper function note) grob)
327 (let ((txt (if function (function grob) #f)))
330 (markup txt #:fontsize -5 #:note note UP)
331 (markup #:fontsize -5 #:note note UP))))
333 ;; Print a tuplet denominator with a different number than the one derived from
334 ;; the actual tuplet fraction
335 (define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
337 (number->string (if denominator
339 (ly:event-property (event-cause grob) 'denominator))))
341 ;; Print a tuplet fraction with different numbers than the ones derived from
342 ;; the actual tuplet fraction
343 (define-public ((tuplet-number::non-default-tuplet-fraction-text
344 denominator numerator) grob)
345 (let* ((ev (event-cause grob))
346 (den (if denominator denominator (ly:event-property ev 'denominator)))
347 (num (if numerator numerator (ly:event-property ev 'numerator))))
349 (format "~a:~a" den num)))
351 ;; Print a tuplet fraction with note durations appended to the numerator and the
353 (define-public ((tuplet-number::fraction-with-notes
354 denominatornote numeratornote) grob)
355 (let* ((ev (event-cause grob))
356 (denominator (ly:event-property ev 'denominator))
357 (numerator (ly:event-property ev 'numerator)))
359 ((tuplet-number::non-default-fraction-with-notes
360 denominator denominatornote numerator numeratornote) grob)))
362 ;; Print a tuplet fraction with note durations appended to the numerator and the
364 (define-public ((tuplet-number::non-default-fraction-with-notes
365 denominator denominatornote numerator numeratornote) grob)
366 (let* ((ev (event-cause grob))
367 (den (if denominator denominator (ly:event-property ev 'denominator)))
368 (num (if numerator numerator (ly:event-property ev 'numerator))))
370 (make-concat-markup (list
371 (make-simple-markup (format "~a" den))
372 (markup #:fontsize -5 #:note denominatornote UP)
373 (make-simple-markup " : ")
374 (make-simple-markup (format "~a" num))
375 (markup #:fontsize -5 #:note numeratornote UP)))))
378 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
381 (define-public (color? x)
384 (apply eq? #t (map number? x))
385 (apply eq? #t (map (lambda (y) (<= 0 y 1)) x))))
387 (define-public (rgb-color r g b) (list r g b))
390 (define-public black '(0.0 0.0 0.0))
391 (define-public white '(1.0 1.0 1.0))
392 (define-public red '(1.0 0.0 0.0))
393 (define-public green '(0.0 1.0 0.0))
394 (define-public blue '(0.0 0.0 1.0))
395 (define-public cyan '(0.0 1.0 1.0))
396 (define-public magenta '(1.0 0.0 1.0))
397 (define-public yellow '(1.0 1.0 0.0))
399 (define-public grey '(0.5 0.5 0.5))
400 (define-public darkred '(0.5 0.0 0.0))
401 (define-public darkgreen '(0.0 0.5 0.0))
402 (define-public darkblue '(0.0 0.0 0.5))
403 (define-public darkcyan '(0.0 0.5 0.5))
404 (define-public darkmagenta '(0.5 0.0 0.5))
405 (define-public darkyellow '(0.5 0.5 0.0))
408 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
411 (define-public (key-signature-interface::alteration-position step alter
413 ;; TODO: memoize - this is mostly constant.
415 ;; fes, ges, as and bes typeset in lower octave
416 (define FLAT_TOP_PITCH 2)
418 ;; ais and bis typeset in lower octave
419 (define SHARP_TOP_PITCH 4)
422 (+ (cdr step) (* (car step) 7) c0-position)
423 (let* ((from-bottom-pos (modulo (+ 4 49 c0-position) 7))
425 (c0 (- from-bottom-pos 4)))
429 (or (> p FLAT_TOP_PITCH) (> (+ p c0) 4)) (> (+ p c0) 1))
431 (or (> p SHARP_TOP_PITCH) (> (+ p c0) 5)) (> (+ p c0) 2)))
433 ;; Typeset below c_position
436 ;; Provide for the four cases in which there's a glitch
437 ;; it's a hack, but probably not worth
438 ;; the effort of finding a nicer solution.
441 ((and (= c0 2) (= p 3) (> alter 0))
443 ((and (= c0 -3) (= p -1) (> alter 0))
445 ((and (= c0 -4) (= p -1) (< alter 0))
447 ((and (= c0 -2) (= p -3) (< alter 0))
453 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
456 (define-public (accidental-interface::calc-alteration grob)
457 (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
459 (define-public cancellation-glyph-name-alist
460 '((0 . "accidentals.natural")))
462 (define-public standard-alteration-glyph-name-alist
464 ;; ordered for optimal performance.
465 (0 . "accidentals.natural")
466 (-1/2 . "accidentals.flat")
467 (1/2 . "accidentals.sharp")
469 (1 . "accidentals.doublesharp")
470 (-1 . "accidentals.flatflat")
472 (3/4 . "accidentals.sharp.slashslash.stemstemstem")
473 (1/4 . "accidentals.sharp.slashslash.stem")
474 (-1/4 . "accidentals.mirroredflat")
475 (-3/4 . "accidentals.mirroredflat.flat")))
477 ;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
478 (define-public alteration-default-glyph-name-alist
479 standard-alteration-glyph-name-alist)
481 (define-public makam-alteration-glyph-name-alist
482 '((1 . "accidentals.doublesharp")
483 (8/9 . "accidentals.sharp.slashslashslash.stemstem")
484 (5/9 . "accidentals.sharp.slashslashslash.stem")
485 (4/9 . "accidentals.sharp")
486 (1/9 . "accidentals.sharp.slashslash.stem")
487 (0 . "accidentals.natural")
488 (-1/9 . "accidentals.mirroredflat")
489 (-4/9 . "accidentals.flat.slash")
490 (-5/9 . "accidentals.flat")
491 (-8/9 . "accidentals.flat.slashslash")
492 (-1 . "accidentals.flatflat")))
494 (define-public alteration-hufnagel-glyph-name-alist
495 '((-1/2 . "accidentals.hufnagelM1")
496 (0 . "accidentals.vaticana0")
497 (1/2 . "accidentals.mensural1")))
499 (define-public alteration-medicaea-glyph-name-alist
500 '((-1/2 . "accidentals.medicaeaM1")
501 (0 . "accidentals.vaticana0")
502 (1/2 . "accidentals.mensural1")))
504 (define-public alteration-vaticana-glyph-name-alist
505 '((-1/2 . "accidentals.vaticanaM1")
506 (0 . "accidentals.vaticana0")
507 (1/2 . "accidentals.mensural1")))
509 (define-public alteration-mensural-glyph-name-alist
510 '((-1/2 . "accidentals.mensuralM1")
511 (0 . "accidentals.vaticana0")
512 (1/2 . "accidentals.mensural1")))
515 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
516 ;; * Pitch Trill Heads
519 (define-public (parentheses-item::calc-parenthesis-stencils grob)
520 (let* ((font (ly:grob-default-font grob))
521 (lp (ly:font-get-glyph font "accidentals.leftparen"))
522 (rp (ly:font-get-glyph font "accidentals.rightparen")))
526 (define-public (parentheses-item::calc-angled-bracket-stencils grob)
527 (let* ((parent (ly:grob-parent grob Y))
528 (y-extent (ly:grob-extent parent parent Y))
529 (half-thickness 0.05) ; should it be a property?
530 (width 0.5) ; should it be a property?
531 (angularity 1.5) ; makes angle brackets
532 (white-padding 0.1) ; should it be a property?
533 (lp (ly:stencil-aligned-to
534 (ly:stencil-aligned-to
535 (make-parenthesis-stencil y-extent
542 (interval-widen (ly:stencil-extent lp X) white-padding))
543 (rp (ly:stencil-aligned-to
544 (ly:stencil-aligned-to
545 (make-parenthesis-stencil y-extent
552 (interval-widen (ly:stencil-extent rp X) white-padding)))
553 (set! lp (ly:make-stencil (ly:stencil-expr lp)
555 (ly:stencil-extent lp Y)))
556 (set! rp (ly:make-stencil (ly:stencil-expr rp)
558 (ly:stencil-extent rp Y)))
559 (list (stencil-whiteout lp)
560 (stencil-whiteout rp))))
562 (define (parenthesize-elements grob . rest)
563 (let* ((refp (if (null? rest)
566 (elts (ly:grob-object grob 'elements))
567 (x-ext (ly:relative-group-extent elts refp X))
568 (stencils (ly:grob-property grob 'stencils))
571 (padding (ly:grob-property grob 'padding 0.1)))
574 (ly:stencil-translate-axis lp (- (car x-ext) padding) X)
575 (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
578 (define (parentheses-item::print me)
579 (let* ((elts (ly:grob-object me 'elements))
580 (y-ref (ly:grob-common-refpoint-of-array me elts Y))
581 (x-ref (ly:grob-common-refpoint-of-array me elts X))
582 (stencil (parenthesize-elements me x-ref))
583 (elt-y-ext (ly:relative-group-extent elts y-ref Y))
584 (y-center (interval-center elt-y-ext)))
586 (ly:stencil-translate
589 (- (ly:grob-relative-coordinate me x-ref X))
590 (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
594 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
597 (define-public (chain-grob-member-functions grob value . funcs)
600 (set! value (func grob value)))
606 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
609 (define-public (bend::print spanner)
611 (< (abs (- a b)) 0.01))
613 (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
614 (left-span (ly:spanner-bound spanner LEFT))
615 (dots (if (and (grob::has-interface left-span 'note-head-interface)
616 (ly:grob? (ly:grob-object left-span 'dot)))
617 (ly:grob-object left-span 'dot) #f))
619 (right-span (ly:spanner-bound spanner RIGHT))
620 (thickness (* (ly:grob-property spanner 'thickness)
621 (ly:output-def-lookup (ly:grob-layout spanner)
623 (padding (ly:grob-property spanner 'padding 0.5))
624 (common (ly:grob-common-refpoint right-span
625 (ly:grob-common-refpoint spanner
628 (common-y (ly:grob-common-refpoint spanner left-span Y))
629 (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
633 (interval-end (ly:grob-robust-relative-extent
638 (ly:grob-relative-coordinate dots common-y Y)
639 (ly:grob-relative-coordinate spanner common-y Y)))
641 (ly:grob-robust-relative-extent dots common X))
642 ;; TODO: use real infinity constant.
644 (right-x (max (- (interval-start
645 (ly:grob-robust-relative-extent right-span common X))
647 (+ left-x minimum-length)))
648 (self-x (ly:grob-relative-coordinate spanner common X))
649 (dx (- right-x left-x))
650 (exp (list 'path thickness
658 ,dx ,(* 0.66 delta-y)
663 (cons (- left-x self-x) (- right-x self-x))
664 (cons (min 0 delta-y)
668 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
671 (define-public (grace-spacing::calc-shortest-duration grob)
672 (let* ((cols (ly:grob-object grob 'columns))
675 (ly:moment-sub (ly:grob-property
676 (ly:grob-array-ref cols (1+ idx)) 'when)
678 (ly:grob-array-ref cols idx) 'when))))
680 (moment-min (lambda (x y)
683 (if (ly:moment<? x y)
689 (fold moment-min #f (map get-difference
690 (iota (1- (ly:grob-array-length cols)))))))
693 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
696 (define-public (fingering::calc-text grob)
697 (let* ((event (event-cause grob))
698 (digit (ly:event-property event 'digit)))
701 (ly:input-message (ly:event-property event 'origin)
702 "Warning: Fingering notation for finger number ~a"
705 (number->string digit 10)))
707 (define-public (string-number::calc-text grob)
708 (let ((digit (ly:event-property (event-cause grob) 'string-number)))
710 (number->string digit 10)))
712 (define-public (stroke-finger::calc-text grob)
713 (let* ((digit (ly:event-property (event-cause grob) 'digit))
714 (text (ly:event-property (event-cause grob) 'text)))
718 (vector-ref (ly:grob-property grob 'digit-names)
719 (1- (max (min 5 digit) 1))))))
722 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
725 (define-public (hairpin::calc-grow-direction grob)
726 (if (eq? (ly:event-property (event-cause grob) 'class) 'decrescendo-event)
730 (define-public (dynamic-text-spanner::before-line-breaking grob)
731 "Monitor left bound of @code{DynamicTextSpanner} for absolute dynamics.
732 If found, ensure @code{DynamicText} does not collide with spanner text by
733 changing @code{'attach-dir} and @code{'padding}. Reads the
734 @code{'right-padding} property of @code{DynamicText} to fine tune space
735 between the two text elements."
736 (let ((left-bound (ly:spanner-bound grob LEFT)))
737 (if (grob::has-interface left-bound 'dynamic-text-interface)
738 (let* ((details (ly:grob-property grob 'bound-details))
739 (left-details (ly:assoc-get 'left details))
740 (my-padding (ly:assoc-get 'padding left-details))
741 (script-padding (ly:grob-property left-bound 'right-padding 0)))
743 (and (number? my-padding)
744 (ly:grob-set-nested-property! grob
745 '(bound-details left attach-dir)
747 (ly:grob-set-nested-property! grob
748 '(bound-details left padding)
749 (+ my-padding script-padding)))))))
752 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
755 (define-public (lyric-text::print grob)
756 "Allow interpretation of tildes as lyric tieing marks."
758 (let ((text (ly:grob-property grob 'text)))
760 (grob-interpret-markup grob (if (string? text)
761 (make-tied-lyric-markup text)
764 (define-public ((grob::calc-property-by-copy prop) grob)
765 (ly:event-property (event-cause grob) prop))
768 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
771 (define-public (fret-board::calc-stencil grob)
772 (grob-interpret-markup
774 (make-fret-diagram-verbose-markup
775 (ly:grob-property grob 'dot-placement-list))))
778 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
781 (define-public (script-interface::calc-x-offset grob)
782 (ly:grob-property grob 'positioning-done)
783 (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
785 (ly:self-alignment-interface::centered-on-x-parent grob))
786 (note-head-grob (ly:grob-parent grob X))
787 (stem-grob (ly:grob-object note-head-grob 'stem)))
789 (+ note-head-location
790 ;; If the property 'toward-stem-shift is defined and the script
791 ;; has the same direction as the stem, move the script accordingly.
792 ;; Since scripts can also be over skips, we need to check whether
793 ;; the grob has a stem at all.
794 (if (ly:grob? stem-grob)
795 (let ((dir1 (ly:grob-property grob 'direction))
796 (dir2 (ly:grob-property stem-grob 'direction)))
797 (if (equal? dir1 dir2)
798 (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
800 (ly:grob-relative-coordinate stem-grob common-refp X)))
801 (* shift (- stem-location note-head-location)))
806 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
809 (define-public (system-start-text::print grob)
810 (let* ((left-bound (ly:spanner-bound grob LEFT))
811 (left-mom (ly:grob-property left-bound 'when))
812 (name (if (moment<=? left-mom ZERO-MOMENT)
813 (ly:grob-property grob 'long-text)
814 (ly:grob-property grob 'text))))
816 (if (and (markup? name)
817 (!= (ly:item-break-dir left-bound) CENTER))
819 (grob-interpret-markup grob name)
820 (ly:grob-suicide! grob))))
822 (define-public (system-start-text::calc-x-offset grob)
823 (let* ((left-bound (ly:spanner-bound grob LEFT))
824 (left-mom (ly:grob-property left-bound 'when))
825 (layout (ly:grob-layout grob))
826 (indent (ly:output-def-lookup layout
827 (if (moment<=? left-mom ZERO-MOMENT)
831 (system (ly:grob-system grob))
832 (my-extent (ly:grob-extent grob system X))
833 (elements (ly:grob-object system 'elements))
834 (common (ly:grob-common-refpoint-of-array system elements X))
835 (total-ext empty-interval)
836 (align-x (ly:grob-property grob 'self-alignment-X 0))
837 (padding (min 0 (- (interval-length my-extent) indent)))
838 (right-padding (- padding
839 (/ (* padding (1+ align-x)) 2))))
841 ;; compensate for the variation in delimiter extents by
842 ;; calculating an X-offset correction based on united extents
843 ;; of all delimiters in this system
844 (let unite-delims ((l (ly:grob-array-length elements)))
846 (let ((elt (ly:grob-array-ref elements (1- l))))
848 (if (grob::has-interface elt 'system-start-delimiter-interface)
849 (let ((dims (ly:grob-extent elt common X)))
850 (if (interval-sane? dims)
851 (set! total-ext (interval-union total-ext dims)))))
852 (unite-delims (1- l)))))
855 (ly:side-position-interface::x-aligned-side grob)
857 (- (interval-length total-ext)))))
859 (define-public (system-start-text::calc-y-offset grob)
861 (define (live-elements-list me)
862 (let ((elements (ly:grob-object me 'elements)))
864 (filter! grob::is-live?
865 (ly:grob-array->list elements))))
867 (let* ((left-bound (ly:spanner-bound grob LEFT))
868 (live-elts (live-elements-list grob))
869 (system (ly:grob-system grob))
870 (extent empty-interval))
872 (if (and (pair? live-elts)
873 (interval-sane? (ly:grob-extent grob system Y)))
874 (let get-extent ((lst live-elts))
876 (let ((axis-group (car lst)))
878 (if (and (ly:spanner? axis-group)
879 (equal? (ly:spanner-bound axis-group LEFT)
881 (set! extent (add-point extent
882 (ly:grob-relative-coordinate
883 axis-group system Y))))
884 (get-extent (cdr lst)))))
885 ;; no live axis group(s) for this instrument name -> remove from system
886 (ly:grob-suicide! grob))
889 (ly:self-alignment-interface::y-aligned-on-self grob)
890 (interval-center extent))))
893 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
896 (define-public (ambitus::print grob)
897 (let ((heads (ly:grob-object grob 'note-heads)))
899 (if (and (ly:grob-array? heads)
900 (= (ly:grob-array-length heads) 2))
901 (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
902 (head-down (ly:grob-array-ref heads 0))
903 (head-up (ly:grob-array-ref heads 1))
904 (gap (ly:grob-property grob 'gap 0.35))
905 (point-min (+ (interval-end (ly:grob-extent head-down common Y))
907 (point-max (- (interval-start (ly:grob-extent head-up common Y))
910 (if (< point-min point-max)
911 (let* ((layout (ly:grob-layout grob))
912 (line-thick (ly:output-def-lookup layout 'line-thickness))
913 (blot (ly:output-def-lookup layout 'blot-diameter))
914 (grob-thick (ly:grob-property grob 'thickness 2))
915 (width (* line-thick grob-thick))
916 (x-ext (symmetric-interval (/ width 2)))
917 (y-ext (cons point-min point-max))
918 (line (ly:round-filled-box x-ext y-ext blot))
919 (y-coord (ly:grob-relative-coordinate grob common Y)))
921 (ly:stencil-translate-axis line (- y-coord) Y))
924 (ly:grob-suicide! grob)
927 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
928 ;; laissez-vibrer tie
930 ;; needed so we can make laissez-vibrer a pure print
932 (define-public (laissez-vibrer::print grob)
933 (ly:tie::print grob))