Imported Upstream version 2.16.0

[lilypond.git] / Documentation / snippets / generating-custom-flags.ly

diff --git a/Documentation/snippets/generating-custom-flags.ly b/Documentation/snippets/generating-custom-flags.ly
index 3668e9d48cc8bc23112ae9fbf0a4f41934d8fee3..1bf3b229793ec9224319e83b88315b53f3d6c1a6 100644 (file)
--- a/Documentation/snippets/generating-custom-flags.ly
+++ b/Documentation/snippets/generating-custom-flags.ly
@@ -1,28 +1,31 @@
-%% DO NOT EDIT this file manually; it is automatically
-%% generated from LSR http://lsr.dsi.unimi.it
-%% Make any changes in LSR itself, or in Documentation/snippets/new/ ,
-%% and then run scripts/auxiliar/makelsr.py
-%%
-%% This file is in the public domain.
-\version "2.14.0"
+% DO NOT EDIT this file manually; it is automatically
+% generated from Documentation/snippets/new
+% Make any changes in Documentation/snippets/new/
+% and then run scripts/auxiliar/makelsr.py
+%
+% This file is in the public domain.
+%% Note: this file works from version 2.15.15
+\version "2.16.0"
 
 \header {
   lsrtags = "rhythms, tweaks-and-overrides"
 
   texidoc = "
-The @code{flag} property of the Stem grob can be set to a custom scheme
+The @code{stencil} property of the Flag grob can be set to a custom scheme
 function to generate the glyph for the flag.
 
 "
   doctitle = "Generating custom flags"
 } % begin verbatim
 
-#(define-public (weight-flag stem-grob)
-   (let* ((log (- (ly:grob-property stem-grob 'duration-log) 2))
+
+#(define-public (weight-flag grob)
+   (let* ((stem-grob (ly:grob-parent grob X))
+          (log (- (ly:grob-property stem-grob 'duration-log) 2))
           (is-up? (eqv? (ly:grob-property stem-grob 'direction) UP))
           (yext (if is-up? (cons (* log -0.8) 0) (cons 0 (* log 0.8))))
           (flag-stencil (make-filled-box-stencil '(-0.4 . 0.4) yext))
-          (stroke-style (ly:grob-property stem-grob 'stroke-style))
+          (stroke-style (ly:grob-property grob 'stroke-style))
           (stroke-stencil (if (equal? stroke-style "grace")
                               (make-line-stencil 0.2 -0.9 -0.4 0.9 -0.4)
                               empty-stencil)))
@@ -30,13 +33,14 @@ function to generate the glyph for the flag.
 
 
 % Create a flag stencil by looking up the glyph from the font
-#(define (inverted-flag stem-grob)
-   (let* ((dir (if (eqv? (ly:grob-property stem-grob 'direction) UP) "d" "u"))
-          (flag (retrieve-glyph-flag "" dir "" stem-grob))
-          (line-thickness (ly:staff-symbol-line-thickness stem-grob))
+#(define (inverted-flag grob)
+   (let* ((stem-grob (ly:grob-parent grob X))
+          (dir (if (eqv? (ly:grob-property stem-grob 'direction) UP) "d" "u"))
+          (flag (retrieve-glyph-flag "" dir "" grob))
+          (line-thickness (ly:staff-symbol-line-thickness grob))
           (stem-thickness (ly:grob-property stem-grob 'thickness))
           (stem-width (* line-thickness stem-thickness))
-          (stroke-style (ly:grob-property stem-grob 'stroke-style))
+          (stroke-style (ly:grob-property grob 'stroke-style))
           (stencil (if (null? stroke-style)
                        flag
                        (add-stroke-glyph flag stem-grob dir stroke-style "")))
@@ -52,15 +56,14 @@ snippetexamplenotes = { \autoBeamOff c'8 d'16 c'32 d'64 \acciaccatura {c'8} d'64
   \snippetexamplenotes
 
   \mark "Custom flag: inverted"
-  \override Stem #'flag = #inverted-flag
+  \override Flag #'stencil = #inverted-flag
   \snippetexamplenotes
 
   \mark "Custom flag: weight"
-  \override Stem #'flag = #weight-flag
+  \override Flag #'stencil = #weight-flag
   \snippetexamplenotes
 
   \mark "Revert to normal"
-  \revert Stem #'flag
+  \revert Flag #'stencil
   \snippetexamplenotes
 }
-