input/regression/apply-output.ly

   1 \version "2.12.0"
   2
   3 \header {
   4   texidoc = "The @code{\applyOutput} expression is the most flexible way to
   5 tune properties for individual grobs.
   6
   7 Here, the layout of a note head is changed depending on its vertical
   8 position.
   9 "
  10 }
  11
  12 #(define (mc-squared gr org cur)
  13   (let*
  14     (
  15       (ifs (ly:grob-interfaces gr))
  16       (sp (ly:grob-property gr 'staff-position))
  17       )
  18     (if (memq 'note-head-interface ifs)
  19       (begin
  20         (ly:grob-set-property! gr 'stencil
  21           (grob-interpret-markup gr
  22             (make-raise-markup -0.5
  23               (case sp
  24                 ((-5) (make-simple-markup "m"))
  25                 ((-3) (make-simple-markup "c "))
  26                 ((-2) (make-smaller-markup (make-bold-markup "2")))
  27                 (else (make-simple-markup "bla"))
  28                 ))))
  29         ))))
  30
  31 \new Voice \relative c' {
  32   \set autoBeaming = ##f
  33
  34   <d f g b>8
  35
  36   \applyOutput #'Voice #mc-squared
  37   <d f g b>8
  38 }