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)))
177 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
180 (define-public all-visible #(#t #t #t))
181 (define-public begin-of-line-invisible #(#t #t #f))
182 (define-public center-invisible #(#t #f #t))
183 (define-public end-of-line-invisible #(#f #t #t))
184 (define-public begin-of-line-visible #(#f #f #t))
185 (define-public center-visible #(#f #t #f))
186 (define-public end-of-line-visible #(#t #f #f))
187 (define-public all-invisible #(#f #f #f))
189 (define-public spanbar-begin-of-line-invisible #(#t #f #f))
192 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
196 ;; How should a bar line behave at a break?
197 (define bar-glyph-alist
198 '((":|:" . (":|" . "|:"))
199 (":|.|:" . (":|" . "|:"))
200 (":|.:" . (":|" . "|:"))
201 ("||:" . ("||" . "|:"))
202 ("dashed" . ("dashed" . '()))
204 ("||:" . ("||" . "|:"))
206 ("|:" . ("|" . "|:"))
209 ;; hmm... should we end with a bar line here?
210 (".|" . ("|" . ".|"))
213 (".|." . (".|." . ()))
214 ("|.|" . ("|.|" . ()))
219 ("empty" . (() . ()))
220 ("brace" . (() . "brace"))
221 ("bracket" . (() . "bracket"))
227 (":|S" . (":|" . "S"))
228 (":|S." . (":|S" . ()))
229 ("S|:" . ("S" . "|:"))
230 (".S|:" . ("|" . "S|:"))
231 (":|S|:" . (":|" . "S|:"))
232 (":|S.|:" . (":|S" . "|:"))))
234 (define-public (bar-line::calc-glyph-name grob)
235 (let* ((glyph (ly:grob-property grob 'glyph))
236 (dir (ly:item-break-dir grob))
237 (result (assoc-get glyph bar-glyph-alist))
238 (glyph-name (if (= dir CENTER)
241 (string? (index-cell result dir)))
242 (index-cell result dir)
246 (define-public (bar-line::calc-break-visibility grob)
247 (let* ((glyph (ly:grob-property grob 'glyph))
248 (result (assoc-get glyph bar-glyph-alist)))
251 (vector (string? (car result)) #t (string? (cdr result)))
254 (define-public (shift-right-at-line-begin g)
255 "Shift an item to the right, but only at the start of the line."
256 (if (and (ly:item? g)
257 (equal? (ly:item-break-dir g) RIGHT))
258 (ly:grob-translate-axis! g 3.5 X)))
261 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
264 (define-public (tuplet-number::calc-denominator-text grob)
265 (number->string (ly:event-property (event-cause grob) 'denominator)))
267 (define-public (tuplet-number::calc-fraction-text grob)
268 (let ((ev (event-cause grob)))
271 (ly:event-property ev 'denominator)
272 (ly:event-property ev 'numerator))))
274 ;; a formatter function, which is simply a wrapper around an existing
275 ;; tuplet formatter function. It takes the value returned by the given
276 ;; function and appends a note of given length.
277 (define-public ((tuplet-number::append-note-wrapper function note) grob)
278 (let ((txt (if function (function grob) #f)))
281 (markup txt #:fontsize -5 #:note note UP)
282 (markup #:fontsize -5 #:note note UP))))
284 ;; Print a tuplet denominator with a different number than the one derived from
285 ;; the actual tuplet fraction
286 (define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
288 (number->string (if denominator
290 (ly:event-property (event-cause grob) 'denominator))))
292 ;; Print a tuplet fraction with different numbers than the ones derived from
293 ;; the actual tuplet fraction
294 (define-public ((tuplet-number::non-default-tuplet-fraction-text
295 denominator numerator) grob)
296 (let* ((ev (event-cause grob))
297 (den (if denominator denominator (ly:event-property ev 'denominator)))
298 (num (if numerator numerator (ly:event-property ev 'numerator))))
300 (format "~a:~a" den num)))
302 ;; Print a tuplet fraction with note durations appended to the numerator and the
304 (define-public ((tuplet-number::fraction-with-notes
305 denominatornote numeratornote) grob)
306 (let* ((ev (event-cause grob))
307 (denominator (ly:event-property ev 'denominator))
308 (numerator (ly:event-property ev 'numerator)))
310 ((tuplet-number::non-default-fraction-with-notes
311 denominator denominatornote numerator numeratornote) grob)))
313 ;; Print a tuplet fraction with note durations appended to the numerator and the
315 (define-public ((tuplet-number::non-default-fraction-with-notes
316 denominator denominatornote numerator numeratornote) grob)
317 (let* ((ev (event-cause grob))
318 (den (if denominator denominator (ly:event-property ev 'denominator)))
319 (num (if numerator numerator (ly:event-property ev 'numerator))))
321 (make-concat-markup (list
322 (make-simple-markup (format "~a" den))
323 (markup #:fontsize -5 #:note denominatornote UP)
324 (make-simple-markup " : ")
325 (make-simple-markup (format "~a" num))
326 (markup #:fontsize -5 #:note numeratornote UP)))))
329 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
332 (define-public color? list?)
333 (define-public (rgb-color r g b) (list r g b))
336 (define-public black '(0.0 0.0 0.0))
337 (define-public white '(1.0 1.0 1.0))
338 (define-public red '(1.0 0.0 0.0))
339 (define-public green '(0.0 1.0 0.0))
340 (define-public blue '(0.0 0.0 1.0))
341 (define-public cyan '(0.0 1.0 1.0))
342 (define-public magenta '(1.0 0.0 1.0))
343 (define-public yellow '(1.0 1.0 0.0))
345 (define-public grey '(0.5 0.5 0.5))
346 (define-public darkred '(0.5 0.0 0.0))
347 (define-public darkgreen '(0.0 0.5 0.0))
348 (define-public darkblue '(0.0 0.0 0.5))
349 (define-public darkcyan '(0.0 0.5 0.5))
350 (define-public darkmagenta '(0.5 0.0 0.5))
351 (define-public darkyellow '(0.5 0.5 0.0))
354 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
357 (define-public (key-signature-interface::alteration-position step alter
359 ;; TODO: memoize - this is mostly constant.
361 ;; fes, ges, as and bes typeset in lower octave
362 (define FLAT_TOP_PITCH 2)
364 ;; ais and bis typeset in lower octave
365 (define SHARP_TOP_PITCH 4)
368 (+ (cdr step) (* (car step) 7) c0-position)
369 (let* ((from-bottom-pos (modulo (+ 4 49 c0-position) 7))
371 (c0 (- from-bottom-pos 4)))
375 (or (> p FLAT_TOP_PITCH) (> (+ p c0) 4)) (> (+ p c0) 1))
377 (or (> p SHARP_TOP_PITCH) (> (+ p c0) 5)) (> (+ p c0) 2)))
379 ;; Typeset below c_position
382 ;; Provide for the four cases in which there's a glitch
383 ;; it's a hack, but probably not worth
384 ;; the effort of finding a nicer solution.
387 ((and (= c0 2) (= p 3) (> alter 0))
389 ((and (= c0 -3) (= p -1) (> alter 0))
391 ((and (= c0 -4) (= p -1) (< alter 0))
393 ((and (= c0 -2) (= p -3) (< alter 0))
399 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
402 (define-public (accidental-interface::calc-alteration grob)
403 (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
405 (define-public cancellation-glyph-name-alist
406 '((0 . "accidentals.natural")))
408 (define-public standard-alteration-glyph-name-alist
410 ;; ordered for optimal performance.
411 (0 . "accidentals.natural")
412 (-1/2 . "accidentals.flat")
413 (1/2 . "accidentals.sharp")
415 (1 . "accidentals.doublesharp")
416 (-1 . "accidentals.flatflat")
418 (3/4 . "accidentals.sharp.slashslash.stemstemstem")
419 (1/4 . "accidentals.sharp.slashslash.stem")
420 (-1/4 . "accidentals.mirroredflat")
421 (-3/4 . "accidentals.mirroredflat.flat")))
423 ;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
424 (define-public alteration-default-glyph-name-alist
425 standard-alteration-glyph-name-alist)
427 (define-public makam-alteration-glyph-name-alist
428 '((1 . "accidentals.doublesharp")
429 (8/9 . "accidentals.sharp.slashslashslash.stemstem")
430 (5/9 . "accidentals.sharp.slashslashslash.stem")
431 (4/9 . "accidentals.sharp")
432 (1/9 . "accidentals.sharp.slashslash.stem")
433 (0 . "accidentals.natural")
434 (-1/9 . "accidentals.mirroredflat")
435 (-4/9 . "accidentals.flat.slash")
436 (-5/9 . "accidentals.flat")
437 (-8/9 . "accidentals.flat.slashslash")
438 (-1 . "accidentals.flatflat")))
440 (define-public alteration-hufnagel-glyph-name-alist
441 '((-1/2 . "accidentals.hufnagelM1")
442 (0 . "accidentals.vaticana0")
443 (1/2 . "accidentals.mensural1")))
445 (define-public alteration-medicaea-glyph-name-alist
446 '((-1/2 . "accidentals.medicaeaM1")
447 (0 . "accidentals.vaticana0")
448 (1/2 . "accidentals.mensural1")))
450 (define-public alteration-vaticana-glyph-name-alist
451 '((-1/2 . "accidentals.vaticanaM1")
452 (0 . "accidentals.vaticana0")
453 (1/2 . "accidentals.mensural1")))
455 (define-public alteration-mensural-glyph-name-alist
456 '((-1/2 . "accidentals.mensuralM1")
457 (0 . "accidentals.vaticana0")
458 (1/2 . "accidentals.mensural1")))
461 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
462 ;; * Pitch Trill Heads
465 (define-public (parentheses-item::calc-parenthesis-stencils grob)
466 (let* ((font (ly:grob-default-font grob))
467 (lp (ly:font-get-glyph font "accidentals.leftparen"))
468 (rp (ly:font-get-glyph font "accidentals.rightparen")))
472 (define-public (parentheses-item::calc-angled-bracket-stencils grob)
473 (let* ((parent (ly:grob-parent grob Y))
474 (y-extent (ly:grob-extent parent parent Y))
475 (half-thickness 0.05) ; should it be a property?
476 (width 0.5) ; should it be a property?
477 (angularity 1.5) ; makes angle brackets
478 (white-padding 0.1) ; should it be a property?
479 (lp (ly:stencil-aligned-to
480 (ly:stencil-aligned-to
481 (make-parenthesis-stencil y-extent
488 (interval-widen (ly:stencil-extent lp X) white-padding))
489 (rp (ly:stencil-aligned-to
490 (ly:stencil-aligned-to
491 (make-parenthesis-stencil y-extent
498 (interval-widen (ly:stencil-extent rp X) white-padding)))
499 (set! lp (ly:make-stencil (ly:stencil-expr lp)
501 (ly:stencil-extent lp Y)))
502 (set! rp (ly:make-stencil (ly:stencil-expr rp)
504 (ly:stencil-extent rp Y)))
505 (list (stencil-whiteout lp)
506 (stencil-whiteout rp))))
508 (define (parenthesize-elements grob . rest)
509 (let* ((refp (if (null? rest)
512 (elts (ly:grob-object grob 'elements))
513 (x-ext (ly:relative-group-extent elts refp X))
514 (stencils (ly:grob-property grob 'stencils))
517 (padding (ly:grob-property grob 'padding 0.1)))
520 (ly:stencil-translate-axis lp (- (car x-ext) padding) X)
521 (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
524 (define (parentheses-item::print me)
525 (let* ((elts (ly:grob-object me 'elements))
526 (y-ref (ly:grob-common-refpoint-of-array me elts Y))
527 (x-ref (ly:grob-common-refpoint-of-array me elts X))
528 (stencil (parenthesize-elements me x-ref))
529 (elt-y-ext (ly:relative-group-extent elts y-ref Y))
530 (y-center (interval-center elt-y-ext)))
532 (ly:stencil-translate
535 (- (ly:grob-relative-coordinate me x-ref X))
536 (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
540 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
543 (define-public (chain-grob-member-functions grob value . funcs)
546 (set! value (func grob value)))
552 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
555 (define-public (bend::print spanner)
557 (< (abs (- a b)) 0.01))
559 (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
560 (left-span (ly:spanner-bound spanner LEFT))
561 (dots (if (and (grob::has-interface left-span 'note-head-interface)
562 (ly:grob? (ly:grob-object left-span 'dot)))
563 (ly:grob-object left-span 'dot) #f))
565 (right-span (ly:spanner-bound spanner RIGHT))
566 (thickness (* (ly:grob-property spanner 'thickness)
567 (ly:output-def-lookup (ly:grob-layout spanner)
569 (padding (ly:grob-property spanner 'padding 0.5))
570 (common (ly:grob-common-refpoint right-span
571 (ly:grob-common-refpoint spanner
574 (common-y (ly:grob-common-refpoint spanner left-span Y))
575 (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
579 (interval-end (ly:grob-robust-relative-extent
584 (ly:grob-relative-coordinate dots common-y Y)
585 (ly:grob-relative-coordinate spanner common-y Y)))
587 (ly:grob-robust-relative-extent dots common X))
588 ;; TODO: use real infinity constant.
590 (right-x (max (- (interval-start
591 (ly:grob-robust-relative-extent right-span common X))
593 (+ left-x minimum-length)))
594 (self-x (ly:grob-relative-coordinate spanner common X))
595 (dx (- right-x left-x))
596 (exp (list 'path thickness
604 ,dx ,(* 0.66 delta-y)
609 (cons (- left-x self-x) (- right-x self-x))
610 (cons (min 0 delta-y)
614 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
617 (define-public (grace-spacing::calc-shortest-duration grob)
618 (let* ((cols (ly:grob-object grob 'columns))
621 (ly:moment-sub (ly:grob-property
622 (ly:grob-array-ref cols (1+ idx)) 'when)
624 (ly:grob-array-ref cols idx) 'when))))
626 (moment-min (lambda (x y)
629 (if (ly:moment<? x y)
635 (fold moment-min #f (map get-difference
636 (iota (1- (ly:grob-array-length cols)))))))
639 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
642 (define-public (fingering::calc-text grob)
643 (let* ((event (event-cause grob))
644 (digit (ly:event-property event 'digit)))
647 (ly:input-message (ly:event-property event 'origin)
648 "Warning: Fingering notation for finger number ~a"
651 (number->string digit 10)))
653 (define-public (string-number::calc-text grob)
654 (let ((digit (ly:event-property (event-cause grob) 'string-number)))
656 (number->string digit 10)))
658 (define-public (stroke-finger::calc-text grob)
659 (let* ((digit (ly:event-property (event-cause grob) 'digit))
660 (text (ly:event-property (event-cause grob) 'text)))
664 (vector-ref (ly:grob-property grob 'digit-names)
665 (1- (max (min 5 digit) 1))))))
668 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
671 (define-public (hairpin::calc-grow-direction grob)
672 (if (eq? (ly:event-property (event-cause grob) 'class) 'decrescendo-event)
676 (define-public (dynamic-text-spanner::before-line-breaking grob)
677 "Monitor left bound of @code{DynamicTextSpanner} for absolute dynamics.
678 If found, ensure @code{DynamicText} does not collide with spanner text by
679 changing @code{'attach-dir} and @code{'padding}. Reads the
680 @code{'right-padding} property of @code{DynamicText} to fine tune space
681 between the two text elements."
682 (let ((left-bound (ly:spanner-bound grob LEFT)))
683 (if (grob::has-interface left-bound 'dynamic-text-interface)
684 (let* ((details (ly:grob-property grob 'bound-details))
685 (left-details (ly:assoc-get 'left details))
686 (my-padding (ly:assoc-get 'padding left-details))
687 (script-padding (ly:grob-property left-bound 'right-padding 0)))
689 (and (number? my-padding)
690 (ly:grob-set-nested-property! grob
691 '(bound-details left attach-dir)
693 (ly:grob-set-nested-property! grob
694 '(bound-details left padding)
695 (+ my-padding script-padding)))))))
698 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
701 (define-public (lyric-text::print grob)
702 "Allow interpretation of tildes as lyric tieing marks."
704 (let ((text (ly:grob-property grob 'text)))
706 (grob-interpret-markup grob (if (string? text)
707 (make-tied-lyric-markup text)
710 (define-public ((grob::calc-property-by-copy prop) grob)
711 (ly:event-property (event-cause grob) prop))
714 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
717 (define-public (fret-board::calc-stencil grob)
718 (grob-interpret-markup
720 (make-fret-diagram-verbose-markup
721 (ly:grob-property grob 'dot-placement-list))))
724 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
727 (define-public (script-interface::calc-x-offset grob)
728 (ly:grob-property grob 'positioning-done)
729 (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
731 (ly:self-alignment-interface::centered-on-x-parent grob))
732 (note-head-grob (ly:grob-parent grob X))
733 (stem-grob (ly:grob-object note-head-grob 'stem)))
735 (+ note-head-location
736 ;; If the property 'toward-stem-shift is defined and the script
737 ;; has the same direction as the stem, move the script accordingly.
738 ;; Since scripts can also be over skips, we need to check whether
739 ;; the grob has a stem at all.
740 (if (ly:grob? stem-grob)
741 (let ((dir1 (ly:grob-property grob 'direction))
742 (dir2 (ly:grob-property stem-grob 'direction)))
743 (if (equal? dir1 dir2)
744 (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
746 (ly:grob-relative-coordinate stem-grob common-refp X)))
747 (* shift (- stem-location note-head-location)))
752 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
755 (define-public (system-start-text::print grob)
756 (let* ((left-bound (ly:spanner-bound grob LEFT))
757 (left-mom (ly:grob-property left-bound 'when))
758 (name (if (moment<=? left-mom ZERO-MOMENT)
759 (ly:grob-property grob 'long-text)
760 (ly:grob-property grob 'text))))
762 (if (and (markup? name)
763 (!= (ly:item-break-dir left-bound) CENTER))
765 (grob-interpret-markup grob name)
766 (ly:grob-suicide! grob))))
768 (define-public (system-start-text::calc-x-offset grob)
769 (let* ((left-bound (ly:spanner-bound grob LEFT))
770 (left-mom (ly:grob-property left-bound 'when))
771 (layout (ly:grob-layout grob))
772 (indent (ly:output-def-lookup layout
773 (if (moment<=? left-mom ZERO-MOMENT)
777 (system (ly:grob-system grob))
778 (my-extent (ly:grob-extent grob system X))
779 (elements (ly:grob-object system 'elements))
780 (common (ly:grob-common-refpoint-of-array system elements X))
781 (total-ext empty-interval)
782 (align-x (ly:grob-property grob 'self-alignment-X 0))
783 (padding (min 0 (- (interval-length my-extent) indent)))
784 (right-padding (- padding
785 (/ (* padding (1+ align-x)) 2))))
787 ;; compensate for the variation in delimiter extents by
788 ;; calculating an X-offset correction based on united extents
789 ;; of all delimiters in this system
790 (let unite-delims ((l (ly:grob-array-length elements)))
792 (let ((elt (ly:grob-array-ref elements (1- l))))
794 (if (grob::has-interface elt 'system-start-delimiter-interface)
795 (let ((dims (ly:grob-extent elt common X)))
796 (if (interval-sane? dims)
797 (set! total-ext (interval-union total-ext dims)))))
798 (unite-delims (1- l)))))
801 (ly:side-position-interface::x-aligned-side grob)
803 (- (interval-length total-ext)))))
805 (define-public (system-start-text::calc-y-offset grob)
807 (define (live-elements-list me)
808 (let* ((elements (ly:grob-object me 'elements))
809 (elts-length (ly:grob-array-length elements))
812 (let get-live ((len elts-length))
814 (let ((elt (ly:grob-array-ref elements (1- len))))
816 (if (grob::is-live? elt)
817 (set! live-elements (cons elt live-elements)))
818 (get-live (1- len)))))
821 (let* ((left-bound (ly:spanner-bound grob LEFT))
822 (live-elts (live-elements-list grob))
823 (system (ly:grob-system grob))
824 (extent empty-interval))
826 (if (and (pair? live-elts)
827 (interval-sane? (ly:grob-extent grob system Y)))
828 (let get-extent ((lst live-elts))
830 (let ((axis-group (car lst)))
832 (if (and (ly:spanner? axis-group)
833 (equal? (ly:spanner-bound axis-group LEFT)
835 (set! extent (add-point extent
836 (ly:grob-relative-coordinate
837 axis-group system Y))))
838 (get-extent (cdr lst)))))
839 ;; no live axis group(s) for this instrument name -> remove from system
840 (ly:grob-suicide! grob))
843 (ly:self-alignment-interface::y-aligned-on-self grob)
844 (interval-center extent))))
847 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
850 (define-public (ambitus::print grob)
851 (let ((heads (ly:grob-object grob 'note-heads)))
853 (if (and (ly:grob-array? heads)
854 (= (ly:grob-array-length heads) 2))
855 (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
856 (head-down (ly:grob-array-ref heads 0))
857 (head-up (ly:grob-array-ref heads 1))
858 (gap (ly:grob-property grob 'gap 0.35))
859 (point-min (+ (interval-end (ly:grob-extent head-down common Y))
861 (point-max (- (interval-start (ly:grob-extent head-up common Y))
864 (if (< point-min point-max)
865 (let* ((layout (ly:grob-layout grob))
866 (line-thick (ly:output-def-lookup layout 'line-thickness))
867 (blot (ly:output-def-lookup layout 'blot-diameter))
868 (grob-thick (ly:grob-property grob 'thickness 2))
869 (width (* line-thick grob-thick))
870 (x-ext (symmetric-interval (/ width 2)))
871 (y-ext (cons point-min point-max))
872 (line (ly:round-filled-box x-ext y-ext blot))
873 (y-coord (ly:grob-relative-coordinate grob common Y)))
875 (ly:stencil-translate-axis line (- y-coord) Y))
878 (ly:grob-suicide! grob)