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 event context)
  10   (let* ((dur (ly:music-property event 'tempo-unit))
  11        (count (ly:music-property event 'metronome-count))
  12        (note-mark (make-smaller-markup
  13                    (make-note-by-number-markup (ly:duration-log dur)
  14                                                (ly:duration-dot-count dur)
  15                                                1))))
  16     (make-line-markup
  17      (list
  18       (make-general-align-markup Y DOWN note-mark)
  19       (make-simple-markup  "=")
  20       (make-simple-markup (number->string count))))))
  21
  22 (define-public (format-mark-alphabet mark context)
  23   (make-bold-markup (make-markalphabet-markup (1- mark))))
  24
  25 (define-public (format-mark-box-alphabet mark context)
  26   (make-bold-markup (make-box-markup (make-markalphabet-markup (1- mark)))))
  27
  28 (define-public (format-mark-circle-alphabet mark context)
  29   (make-bold-markup (make-circle-markup (make-markalphabet-markup (1- mark)))))
  30
  31 (define-public (format-mark-letters mark context)
  32   (make-bold-markup (make-markletter-markup (1- mark))))
  33
  34 (define-public (format-mark-numbers mark context)
  35   (make-bold-markup (number->string mark)))
  36
  37 (define-public (format-mark-barnumbers mark context)
  38   (make-bold-markup (number->string (ly:context-property context 'currentBarNumber))))
  39
  40 (define-public (format-mark-box-letters mark context)
  41   (make-bold-markup (make-box-markup (make-markletter-markup (1- mark)))))
  42
  43 (define-public (format-mark-circle-letters mark context)
  44   (make-bold-markup (make-circle-markup (make-markletter-markup (1- mark)))))
  45
  46 (define-public (format-mark-box-numbers mark context)
  47   (make-bold-markup (make-box-markup (number->string mark))))
  48
  49 (define-public (format-mark-circle-numbers mark context)
  50   (make-bold-markup (make-circle-markup (number->string mark))))
  51
  52 (define-public (format-mark-box-barnumbers mark context)
  53   (make-bold-markup (make-box-markup
  54     (number->string (ly:context-property context 'currentBarNumber)))))
  55
  56 (define-public (format-mark-circle-barnumbers mark context)
  57   (make-bold-markup (make-circle-markup
  58     (number->string (ly:context-property context 'currentBarNumber)))))
  59
  60
  61 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  62 ;; Bass figures.
  63 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  64
  65 (define-public (format-bass-figure figure event context)
  66   (let* ((fig (ly:music-property event 'figure))
  67          (fig-markup (if (number? figure)
  68
  69                          ;; this is not very elegant, but center-aligning all digits
  70                          ;; is problematic with other markups, and shows problems
  71                          ;; in the (lack of) overshoot of feta alphabet glyphs.
  72
  73                          ((if (<= 10 figure)
  74                               (lambda (y) (make-translate-scaled-markup (cons -0.7 0) y))
  75                               identity)
  76
  77                           (if (eq? #t (ly:music-property event 'diminished))
  78                               (markup #:slashed-digit figure)
  79                               (markup #:number (number->string figure 10))))
  80                          #f
  81                          ))
  82          (alt (ly:music-property event 'alteration))
  83          (alt-markup
  84           (if (number? alt)
  85               (markup
  86                #:general-align Y DOWN #:fontsize
  87                (if (not (= alt DOUBLE-SHARP))
  88                    -2 2)
  89                (alteration->text-accidental-markup alt))
  90
  91               #f))
  92          (plus-markup (if (eq? #t (ly:music-property event 'augmented))
  93                           (markup #:number "+")
  94                           #f))
  95
  96          (alt-dir (ly:context-property context 'figuredBassAlterationDirection))
  97          (plus-dir (ly:context-property context 'figuredBassPlusDirection))
  98          )
  99
 100     (if (and (not fig-markup) alt-markup)
 101         (begin
 102           (set! fig-markup (markup #:left-align #:pad-around 0.3 alt-markup))
 103           (set! alt-markup #f)))
 104
 105
 106     ;; hmm, how to get figures centered between note, and
 107     ;; lone accidentals too?
 108
 109     ;;    (if (markup? fig-markup)
 110     ;;  (set!
 111     ;;   fig-markup (markup #:translate (cons 1.0 0)
 112     ;;                      #:hcenter fig-markup)))
 113
 114     (if alt-markup
 115         (set! fig-markup
 116               (markup #:put-adjacent
 117                       fig-markup X
 118                       (if (number? alt-dir)
 119                           alt-dir
 120                           LEFT)
 121                       #:pad-x 0.2 alt-markup
 122                       )))
 123
 124
 125     (if plus-markup
 126         (set! fig-markup
 127               (if fig-markup
 128                   (markup #:put-adjacent
 129                           fig-markup
 130                           X (if (number? plus-dir)
 131                                 plus-dir
 132                                 LEFT)
 133                           #:pad-x 0.2 plus-markup)
 134                   plus-markup)))
 135
 136     (if (markup? fig-markup)
 137         (markup #:fontsize -2 fig-markup)
 138         empty-markup)
 139
 140     ))
 141