1 % DO NOT EDIT this file manually; it is automatically
2 % generated from Documentation/snippets/new
3 % Make any changes in Documentation/snippets/new/
4 % and then run scripts/auxiliar/makelsr.py
6 % This file is in the public domain.
7 %% Note: this file works from version 2.15.15
11 %% Translation of GIT committish: 57f9346bb030f49336a858fcbf1519366fe56454
13 Une fonction Scheme personnalisée permet de redéfinir la propriété
14 @code{stencil} de l'objet @code{Flag}, de sorte à modifier le glyphe
15 utilisé pour les crochets de croche.
18 doctitlefr = "Génération de crochets personnalisés"
20 lsrtags = "rhythms, tweaks-and-overrides"
23 The @code{stencil} property of the Flag grob can be set to a custom scheme
24 function to generate the glyph for the flag.
27 doctitle = "Generating custom flags"
31 #(define-public (weight-flag grob)
32 (let* ((stem-grob (ly:grob-parent grob X))
33 (log (- (ly:grob-property stem-grob 'duration-log) 2))
34 (is-up? (eqv? (ly:grob-property stem-grob 'direction) UP))
35 (yext (if is-up? (cons (* log -0.8) 0) (cons 0 (* log 0.8))))
36 (flag-stencil (make-filled-box-stencil '(-0.4 . 0.4) yext))
37 (stroke-style (ly:grob-property grob 'stroke-style))
38 (stroke-stencil (if (equal? stroke-style "grace")
39 (make-line-stencil 0.2 -0.9 -0.4 0.9 -0.4)
41 (ly:stencil-add flag-stencil stroke-stencil)))
44 % Create a flag stencil by looking up the glyph from the font
45 #(define (inverted-flag grob)
46 (let* ((stem-grob (ly:grob-parent grob X))
47 (dir (if (eqv? (ly:grob-property stem-grob 'direction) UP) "d" "u"))
48 (flag (retrieve-glyph-flag "" dir "" grob))
49 (line-thickness (ly:staff-symbol-line-thickness grob))
50 (stem-thickness (ly:grob-property stem-grob 'thickness))
51 (stem-width (* line-thickness stem-thickness))
52 (stroke-style (ly:grob-property grob 'stroke-style))
53 (stencil (if (null? stroke-style)
55 (add-stroke-glyph flag stem-grob dir stroke-style "")))
56 (rotated-flag (ly:stencil-rotate-absolute stencil 180 0 0)))
57 (ly:stencil-translate rotated-flag (cons (- (/ stem-width 2)) 0))))
59 snippetexamplenotes = { \autoBeamOff c'8 d'16 c'32 d'64 \acciaccatura {c'8} d'64 }
62 \override Score.RehearsalMark #'self-alignment-X = #LEFT
67 \mark "Custom flag: inverted"
68 \override Flag #'stencil = #inverted-flag
71 \mark "Custom flag: weight"
72 \override Flag #'stencil = #weight-flag
75 \mark "Revert to normal"
76 \revert Flag #'stencil