scm/translation-functions.scm

   1 ;;;; translation-functions.scm --
   2 ;;;;
   3 ;;;;  source file of the GNU LilyPond music typesetter
   4 ;;;;
   5 ;;;; (c) 1998--2006 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   6 ;;;;                 Jan Nieuwenhuizen <janneke@gnu.org>
   7
   8 ;; metronome marks
   9 (define-public (format-metronome-markup dur count context)
  10   (let* ((note-mark (make-smaller-markup
  11                      (make-note-by-number-markup (ly:duration-log dur)
  12                                                  (ly:duration-dot-count dur)
  13                                                  1))))
  14     (make-line-markup
  15      (list
  16       (make-general-align-markup Y DOWN note-mark)
  17       (make-simple-markup  "=")
  18       (make-simple-markup (number->string count))))))
  19
  20 (define-public (format-mark-alphabet mark context)
  21   (make-bold-markup (make-markalphabet-markup (1- mark))))
  22
  23 (define-public (format-mark-box-alphabet mark context)
  24   (make-bold-markup (make-box-markup (make-markalphabet-markup (1- mark)))))
  25
  26 (define-public (format-mark-circle-alphabet mark context)
  27   (make-bold-markup (make-circle-markup (make-markalphabet-markup (1- mark)))))
  28
  29 (define-public (format-mark-letters mark context)
  30   (make-bold-markup (make-markletter-markup (1- mark))))
  31
  32 (define-public (format-mark-numbers mark context)
  33   (make-bold-markup (number->string mark)))
  34
  35 (define-public (format-mark-barnumbers mark context)
  36   (make-bold-markup (number->string (ly:context-property context 'currentBarNumber))))
  37
  38 (define-public (format-mark-box-letters mark context)
  39   (make-bold-markup (make-box-markup (make-markletter-markup (1- mark)))))
  40
  41 (define-public (format-mark-circle-letters mark context)
  42   (make-bold-markup (make-circle-markup (make-markletter-markup (1- mark)))))
  43
  44 (define-public (format-mark-box-numbers mark context)
  45   (make-bold-markup (make-box-markup (number->string mark))))
  46
  47 (define-public (format-mark-circle-numbers mark context)
  48   (make-bold-markup (make-circle-markup (number->string mark))))
  49
  50 (define-public (format-mark-box-barnumbers mark context)
  51   (make-bold-markup (make-box-markup
  52     (number->string (ly:context-property context 'currentBarNumber)))))
  53
  54 (define-public (format-mark-circle-barnumbers mark context)
  55   (make-bold-markup (make-circle-markup
  56     (number->string (ly:context-property context 'currentBarNumber)))))
  57
  58
  59 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  60 ;; Bass figures.
  61 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  62
  63 (define-public (format-bass-figure figure stream-event context)
  64   (let* ((event (ly:event-property stream-event 'music-cause ))
  65          (fig (ly:music-property event 'figure))
  66          (fig-markup (if (number? figure)
  67
  68                          ;; this is not very elegant, but center-aligning all digits
  69                          ;; is problematic with other markups, and shows problems
  70                          ;; in the (lack of) overshoot of feta alphabet glyphs.
  71
  72                          ((if (<= 10 figure)
  73                               (lambda (y) (make-translate-scaled-markup (cons -0.7 0) y))
  74                               identity)
  75
  76                           (if (eq? #t (ly:music-property event 'diminished))
  77                               (markup #:slashed-digit figure)
  78                               (markup #:number (number->string figure 10))))
  79                          #f
  80                          ))
  81          (alt (ly:music-property event 'alteration))
  82          (alt-markup
  83           (if (number? alt)
  84               (markup
  85                #:general-align Y DOWN #:fontsize
  86                (if (not (= alt DOUBLE-SHARP))
  87                    -2 2)
  88                (alteration->text-accidental-markup alt))
  89
  90               #f))
  91          (plus-markup (if (eq? #t (ly:music-property event 'augmented))
  92                           (markup #:number "+")
  93                           #f))
  94
  95          (alt-dir (ly:context-property context 'figuredBassAlterationDirection))
  96          (plus-dir (ly:context-property context 'figuredBassPlusDirection))
  97          )
  98
  99     (if (and (not fig-markup) alt-markup)
 100         (begin
 101           (set! fig-markup (markup #:left-align #:pad-around 0.3 alt-markup))
 102           (set! alt-markup #f)))
 103
 104
 105     ;; hmm, how to get figures centered between note, and
 106     ;; lone accidentals too?
 107
 108     ;;    (if (markup? fig-markup)
 109     ;;  (set!
 110     ;;   fig-markup (markup #:translate (cons 1.0 0)
 111     ;;                      #:hcenter fig-markup)))
 112
 113     (if alt-markup
 114         (set! fig-markup
 115               (markup #:put-adjacent
 116                       fig-markup X
 117                       (if (number? alt-dir)
 118                           alt-dir
 119                           LEFT)
 120                       #:pad-x 0.2 alt-markup
 121                       )))
 122
 123
 124     (if plus-markup
 125         (set! fig-markup
 126               (if fig-markup
 127                   (markup #:put-adjacent
 128                           fig-markup
 129                           X (if (number? plus-dir)
 130                                 plus-dir
 131                                 LEFT)
 132                           #:pad-x 0.2 plus-markup)
 133                   plus-markup)))
 134
 135     (if (markup? fig-markup)
 136         (markup #:fontsize -2 fig-markup)
 137         empty-markup)
 138
 139     ))
 140