X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-lib.scm;h=b9f5e421e9103609a7f6fc0cfcf1d3824b3324ea;hb=b715af1d7ae27aa1c3cdca6b18cf17873ecdb6ba;hp=d0dde3f4d5deb6eab23b0b4515bf54d1ebfa0231;hpb=1f4ae685939466899fdf85121a58801c867f9381;p=lilypond.git

diff --git a/scm/output-lib.scm b/scm/output-lib.scm
index d0dde3f4d5..b9f5e421e9 100644
--- a/scm/output-lib.scm
+++ b/scm/output-lib.scm
@@ -1,124 +1,97 @@
 ;;;; output-lib.scm -- implement Scheme output helper functions
 ;;;;
 ;;;;  source file of the GNU LilyPond music typesetter
-;;;; 
-;;;; (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
-
-;;; Tablature functions, by Jiba (jiba@tuxfamily.org)
-
-;; The TabNoteHead stem attachment function.
-(define (note-head::calc-tablature-stem-attachment grob)
-  (cons 0.0 1.35))
-
-;; The TabNoteHead tablatureFormat callback.
-;; Compute the text grob-property
-(define-public (fret-number-tablature-format string tuning pitch)
-  (make-whiteout-markup
-   (make-vcenter-markup  
-    (number->string
-     (- (ly:pitch-semitones pitch)
-	(list-ref tuning
-		  ;; remove 1 because list index starts at 0 and guitar string at 1. 
-		  (- string 1)))))))
-
-;; The 5-string banjo has got a extra string, the fifth (duh), wich
-;; starts at the fifth fret on the neck. Frets on the fifth string
-;; are referred to relative to the other frets:
-;;   the "first fret" on the fifth string is really the sixth fret
-;;   on the banjo neck.
-;; We solve this by defining a new fret-number-tablature function:
-(define-public (fret-number-tablature-format-banjo string tuning pitch)
-  (make-whiteout-markup
-   (make-vcenter-markup  
-    (let ((fret (- (ly:pitch-semitones pitch) (list-ref tuning (- string 1)))))
-      (number->string (cond
-		       ((and (> fret 0) (= string 5))
-			(+ fret 5))
-		       (else fret)))))))
-
-
-(define-public guitar-tuning '(4 -1 -5 -10 -15 -20))
-(define-public bass-tuning '(-17 -22 -27 -32))
-
-;; tunings for 5-string banjo
-(define-public banjo-open-g-tuning '(2 -1 -5 -10 7))
-(define-public banjo-c-tuning '(2 -1 -5 -12 7))
-(define-public banjo-modal-tuning '(2 0 -5 -10 7))
-(define-public banjo-open-d-tuning '(2 -3 -6 -10 9))
-(define-public banjo-open-dm-tuning '(2 -3 -6 -10 9))
-;; convert 5-string banjo tunings to 4-string tunings by
-;; removing the 5th string
-;;
-;; example:
-;; \set TabStaff.stringTunings = #(four-string-banjo banjo-open-g-tuning)
-(define-public (four-string-banjo tuning)
-  (reverse (cdr (reverse tuning))))
+;;;;
+;;;; (c) 1998--2009 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-;;; end of tablature functions
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; general
+
+(define-public (grob::has-interface grob iface)
+  (memq iface (ly:grob-interfaces grob)))
+
+(define-public (grob::is-live? grob)
+  (pair? (ly:grob-basic-properties grob)))
 
 (define-public (make-stencil-boxer thickness padding callback)
+
   "Return function that adds a box around the grob passed as argument."
-  (lambda (grob) (box-stencil (callback grob) thickness padding)))
+  (lambda (grob)
+    (box-stencil (callback grob) thickness padding)))
 
 (define-public (make-stencil-circler thickness padding callback)
   "Return function that adds a circle around the grob passed as argument."
-  (lambda (grob) (circle-stencil (callback grob) thickness padding)))
 
-(define-public (arg->string arg)
-  (cond ((number? arg) (ly:inexact->string arg 10))
-	((string? arg) (string-append "\"" arg "\""))
-	((symbol? arg) (string-append "\"" (symbol->string arg) "\""))))
+  (lambda (grob) (circle-stencil (callback grob) thickness padding)))
 
 (define-public (print-circled-text-callback grob)
-  (let* ((text (ly:grob-property grob 'text))
-	 (layout (ly:grob-layout grob))
-	 (defs (ly:output-def-lookup layout 'text-font-defaults))
-	 (props (ly:grob-alist-chain grob defs))
-	 (circle (Text_interface::interpret_markup
-		  layout props (make-draw-circle-markup 0.8 0.1 #f)))
-	 (text-stencil (Text_interface::interpret_markup layout props text)))
-    
-    (ly:stencil-add (centered-stencil text-stencil) circle)))
-
-
-;;(define (mm-to-pt x)
-;;  (* (/ 72.27 25.40) x))
+  (grob-interpret-markup grob (make-circle-markup
+			       (ly:grob-property grob 'text))))
 
-;; do nothing in .scm output
+(define-public (event-cause grob)
+  (let ((cause (ly:grob-property  grob 'cause)))
 
-(define-public (ly:numbers->string lst)
-  (string-join (map ly:number->string lst) " "))
+    (cond
+     ((ly:stream-event? cause) cause)
+     ((ly:grob? cause) (event-cause cause))
+     (else #f))))
 
-(define (number->octal-string x)
-  (let* ((n (inexact->exact x))
-         (n64 (quotient n 64))
-         (n8 (quotient (- n (* n64 64)) 8)))
-    (string-append
-     (number->string n64)
-     (number->string n8)
-     (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
-
-(define-public (ly:inexact->string x radix)
-  (let ((n (inexact->exact x)))
-    (number->string n radix)))
+(define-public (grob-interpret-markup grob text)
+  (let* ((layout (ly:grob-layout grob))
+	 (defs (ly:output-def-lookup layout 'text-font-defaults))
+	 (props (ly:grob-alist-chain grob defs)))
 
-(define-public (ly:number-pair->string c)
-  (string-append (ly:number->string (car c)) " "
-		 (ly:number->string (cdr c))))
+    (ly:text-interface::interpret-markup layout props text)))
 
 
-;; silly, use alist? 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; note heads
+
+(define-public (stem::calc-duration-log grob)
+  (ly:duration-log
+   (ly:event-property (event-cause grob) 'duration)))
+
+(define-public (note-head::calc-duration-log grob)
+  (min 2
+       (ly:duration-log
+	(ly:event-property (event-cause grob) 'duration))))
+
+(define-public (dots::calc-dot-count grob)
+  (ly:duration-dot-count
+   (ly:event-property (event-cause grob) 'duration)))
+
+(define-public (dots::calc-staff-position grob)
+  (let* ((head (ly:grob-parent grob Y))
+	 (log (ly:grob-property head 'duration-log)))
+
+    (cond
+     ((or (not (grob::has-interface head 'rest-interface))
+	  (not (integer? log))) 0)
+     ((= log 7) 4)
+     ((> log 4) 3)
+     ((= log 0) -1)
+     ((= log 1) 1)
+     ((= log -1) 1)
+     (else 0))))
+
+;; silly, use alist?
 (define-public (note-head::calc-glyph-name grob)
-  (let*
-      ((style (ly:grob-property grob 'style))
-       (log (min 2 (ly:grob-property grob 'duration-log))))
-    
+  (let ((style (ly:grob-property grob 'style))
+	(log (min 2 (ly:grob-property grob 'duration-log))))
+
     (case style
+      ;; "default" style is directly handled in note-head.cc as a
+      ;; special case (HW says, mainly for performance reasons).
+      ;; Therefore, style "default" does not appear in this case
+      ;; statement.  -- jr
       ((xcircle) "2xcircle")
       ((harmonic) "0harmonic")
-      ((baroque) 
+      ((harmonic-black) "2harmonic")
+      ((harmonic-mixed) (if (<= log 1) "0harmonic"
+			    "2harmonic"))
+      ((baroque)
        ;; Oops, I actually would not call this "baroque", but, for
        ;; backwards compatibility to 1.4, this is supposed to take
        ;; brevis, longa and maxima from the neo-mensural font and all
@@ -126,6 +99,11 @@
        (if (< log 0)
 	   (string-append (number->string log) "neomensural")
 	   (number->string log)))
+      ((altdefault)
+       ;; Like default, but brevis is drawn with double vertical lines
+       (if (= log -1)
+	   (string-append (number->string log) "double")
+	   (number->string log)))
       ((mensural)
        (string-append (number->string log) (symbol->string style)))
       ((petrucci)
@@ -134,104 +112,115 @@
 	   (string-append (number->string log) (symbol->string style))))
       ((neomensural)
        (string-append (number->string log) (symbol->string style)))
-      ((default)
-       ;; The default font in mf/feta-bolletjes.mf defines a brevis, but
-       ;; neither a longa nor a maxima.  Hence let us, for the moment,
-       ;; take these from the neo-mensural font.  TODO: mf/feta-bolletjes
-       ;; should define at least a longa for the default font.  The longa
-       ;; should look exactly like the brevis of the default font, but
-       ;; with a stem exactly like that of the quarter note. -- jr
-       (if (< log -1)
-	   (string-append (number->string log) "neomensural")
-	   (number->string log)))
       (else
        (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
 	   (symbol->string style)
 	   (string-append (number->string (max 0 log))
 			  (symbol->string style)))))))
 
-;; TODO junk completely?
-(define (note-head-style->attachment-coordinates grob axis)
-  "Return pair (X . Y), containing multipliers for the note head
-bounding box, where to attach the stem. e.g.: X==0 means horizontally
-centered, X==1 is at the right, X == -1 is at the left."
-
-  '(1.0 . 0.0))
-
-(define-public (string-encode-integer i)
-  (cond
-   ((= i  0) "o")
-   ((< i 0)   (string-append "n" (string-encode-integer (- i))))
-   (else (string-append
-	  (make-string 1 (integer->char (+ 65 (modulo i 26))))
-	  (string-encode-integer (quotient i 26))))))
-
-(define-public ((every-nth-bar-number-visible n) barnum) (= 0 (modulo barnum n)))
-
-(define-public ((modulo-bar-number-visible n m) barnum) (and (> barnum 1) (= m (modulo barnum n))))
-
-(define-public ((set-bar-number-visibility n) tr)
-  (let* ((bn (ly:context-property tr 'currentBarNumber)))
-    (ly:context-set-property! tr 'barNumberVisibility (modulo-bar-number-visible n (modulo bn n)))))
-
-(define-public (first-bar-number-invisible barnum) (> barnum 1))
-
-;; See documentation of Item::visibility_lambda_
-(define-public begin-of-line-visible
-  #(#f #f #t))
-(define-public end-of-line-visible
-  #(#t #f #f))
-(define-public end-of-line-invisible
-  #(#f #t #t))
-(define-public spanbar-begin-of-line-invisible
-  #(#t #f #f))
-(define-public all-visible #(#t #t #t))
-(define-public all-invisible #(#f #f #f))
-(define-public begin-of-line-invisible
-  #(#t #t #f))
-(define-public center-invisible #(#t #f #t))
+(define-public (note-head::brew-ez-stencil grob)
+  (let* ((log (ly:grob-property grob 'duration-log))
+	 (pitch (ly:event-property (event-cause grob) 'pitch))
+	 (pitch-index (ly:pitch-notename pitch))
+	 (note-names (ly:grob-property grob 'note-names))
+	 (pitch-string (if (vector? note-names)
+			   (vector-ref note-names pitch-index)
+			   (string
+			    (integer->char
+			     (+ (modulo (+ pitch-index 2) 7)
+				(char->integer #\A))))))
+	 (staff-space (ly:staff-symbol-staff-space grob))
+	 (line-thickness (ly:staff-symbol-line-thickness grob))
+	 (stem (ly:grob-object grob 'stem))
+	 (stem-thickness (* (if (ly:grob? stem)
+				(ly:grob-property stem 'thickness)
+				1.3)
+			    line-thickness))
+	 (radius (/ (+ staff-space line-thickness) 2))
+	 (letter (markup #:center-align #:vcenter pitch-string))
+	 (filled-circle (markup #:draw-circle radius 0 #t)))
+
+    (ly:stencil-translate-axis
+     (grob-interpret-markup
+      grob
+      (if (>= log 2)
+	  (make-combine-markup
+	   filled-circle
+	   (make-with-color-markup white letter))
+	  (make-combine-markup
+	   (make-combine-markup
+	    filled-circle
+	    (make-with-color-markup white (make-draw-circle-markup
+					   (- radius stem-thickness) 0 #t)))
+	   letter)))
+     radius X)))
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; break visibility
+
+(define-public all-visible             #(#t #t #t))
+(define-public begin-of-line-invisible #(#t #t #f))
+(define-public center-invisible        #(#t #f #t))
+(define-public end-of-line-invisible   #(#f #t #t))
+(define-public begin-of-line-visible   #(#f #f #t))
+(define-public center-visible          #(#f #t #f))
+(define-public end-of-line-visible     #(#t #f #f))
+(define-public all-invisible           #(#f #f #f))
+
+(define-public spanbar-begin-of-line-invisible #(#t #f #f))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Bar lines.
 
 ;;
-;; How should a  bar line behave at a break? 
-;;
-;; Why prepend `default-' to every scm identifier?
+;; How should a  bar line behave at a break?
+(define bar-glyph-alist
+  '((":|:" . (":|" . "|:"))
+    (":|.|:" . (":|" . "|:"))
+    (":|.:" . (":|" . "|:"))
+    ("||:" . ("||" . "|:"))
+    ("dashed" . ("dashed" . '()))
+    ("|" . ("|" . ()))
+    ("||:" . ("||" . "|:"))
+    ("|s" . (() . "|"))
+    ("|:" . ("|" . "|:"))
+    ("|." . ("|." . ()))
+
+    ;; hmm... should we end with a bar line here?
+    (".|" . ("|" . ".|"))
+    (":|" . (":|" . ()))
+    ("||" . ("||" . ()))
+    (".|." . (".|." . ()))
+    ("|.|" . ("|.|" . ()))
+    ("" . ("" . ""))
+    (":" . (":" . ""))
+    ("." . ("." . ()))
+    ("'" . ("'" . ()))
+    ("empty" . (() . ()))
+    ("brace" . (() . "brace"))
+    ("bracket" . (() . "bracket"))))
+
 (define-public (bar-line::calc-glyph-name grob)
-  (let* (
-	 (glyph (ly:grob-property grob 'glyph))
+  (let* ((glyph (ly:grob-property grob 'glyph))
 	 (dir (ly:item-break-dir grob))
-	 (result (assoc glyph 
-		       '((":|:" . (":|" . "|:"))
-			 ("||:" . ("||" . "|:"))
-			 ("|" . ("|" . ()))
-			 ("||:" . ("||" . "|:"))
-			 ("|s" . (() . "|"))
-			 ("|:" . ("|" . "|:"))
-			 ("|." . ("|." . ()))
-
-			 ;; hmm... should we end with a bar line here?
-			 (".|" . ("|" . ".|"))
-			 (":|" . (":|" . ()))
-			 ("||" . ("||" . ()))
-			 (".|." . (".|." . ()))
-			 ("" . ("" . ""))
-			 (":" . (":" . ""))
-			 ("empty" . (() . ()))
-			 ("brace" . (() . "brace"))
-			 ("bracket" . (() . "bracket"))  )))
+	 (result (assoc-get glyph bar-glyph-alist))
 	 (glyph-name (if (= dir CENTER)
 			 glyph
-		         (if (and result (string? (index-cell (cdr result) dir)))
-			     (index-cell (cdr result) dir)
-			     #f)))
-	 )
-	 
-    (if glyph-name
-	(set! (ly:grob-property grob 'glyph-name) glyph-name)
-	(ly:grob-suicide! grob))))
+		         (if (and result
+				  (string? (index-cell result dir)))
+			     (index-cell result dir)
+			     #f))))
+    glyph-name))
 
+(define-public (bar-line::calc-break-visibility grob)
+  (let* ((glyph (ly:grob-property grob 'glyph))
+	 (result (assoc-get glyph bar-glyph-alist)))
+
+    (if result
+	(vector (string? (car result)) #t (string? (cdr result)))
+	all-invisible)))
 
 (define-public (shift-right-at-line-begin g)
   "Shift an item to the right, but only at the start of the line."
@@ -240,10 +229,79 @@ centered, X==1 is at the right, X == -1 is at the left."
       (ly:grob-translate-axis! g 3.5 X)))
 
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tuplets
+
+(define-public (tuplet-number::calc-denominator-text grob)
+  (number->string (ly:event-property (event-cause grob) 'denominator)))
+
+(define-public (tuplet-number::calc-fraction-text grob)
+  (let ((ev (event-cause grob)))
+
+    (format "~a:~a"
+	    (ly:event-property ev 'denominator)
+	    (ly:event-property ev 'numerator))))
+
+;; a formatter function, which is simply a wrapper around an existing
+;; tuplet formatter function. It takes the value returned by the given
+;; function and appends a note of given length.
+(define-public ((tuplet-number::append-note-wrapper function note) grob)
+  (let ((txt (if function (function grob) #f)))
+
+    (if txt
+	(markup txt #:fontsize -5 #:note note UP)
+	(markup #:fontsize -5 #:note note UP))))
+
+;; Print a tuplet denominator with a different number than the one derived from
+;; the actual tuplet fraction
+(define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
+		grob)
+  (number->string (if denominator
+		      denominator
+		      (ly:event-property (event-cause grob) 'denominator))))
+
+;; Print a tuplet fraction with different numbers than the ones derived from
+;; the actual tuplet fraction
+(define-public ((tuplet-number::non-default-tuplet-fraction-text
+		 denominator numerator) grob)
+  (let* ((ev (event-cause grob))
+         (den (if denominator denominator (ly:event-property ev 'denominator)))
+         (num (if numerator numerator (ly:event-property ev 'numerator))))
+
+    (format "~a:~a" den num)))
+
+;; Print a tuplet fraction with note durations appended to the numerator and the
+;; denominator
+(define-public ((tuplet-number::fraction-with-notes
+		 denominatornote numeratornote) grob)
+  (let* ((ev (event-cause grob))
+         (denominator (ly:event-property ev 'denominator))
+         (numerator (ly:event-property ev 'numerator)))
+
+    ((tuplet-number::non-default-fraction-with-notes
+      denominator denominatornote numerator numeratornote) grob)))
+
+;; Print a tuplet fraction with note durations appended to the numerator and the
+;; denominator
+(define-public ((tuplet-number::non-default-fraction-with-notes
+		 denominator denominatornote numerator numeratornote) grob)
+  (let* ((ev (event-cause grob))
+         (den (if denominator denominator (ly:event-property ev 'denominator)))
+         (num (if numerator numerator (ly:event-property ev 'numerator))))
+
+    (make-concat-markup (list
+			 (make-simple-markup (format "~a" den))
+			 (markup #:fontsize -5 #:note denominatornote UP)
+			 (make-simple-markup " : ")
+			 (make-simple-markup (format "~a" num))
+			 (markup #:fontsize -5 #:note numeratornote UP)))))
+
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Color
 
 (define-public color? list?)
+(define-public (rgb-color r g b) (list r g b))
 
 ; predefined colors
 (define-public black       '(0.0 0.0 0.0))
@@ -251,31 +309,503 @@ centered, X==1 is at the right, X == -1 is at the left."
 (define-public red         '(1.0 0.0 0.0))
 (define-public green       '(0.0 1.0 0.0))
 (define-public blue        '(0.0 0.0 1.0))
-(define-public cyan        '(1.0 1.0 0.0))
+(define-public cyan        '(0.0 1.0 1.0))
 (define-public magenta     '(1.0 0.0 1.0))
-(define-public yellow      '(0.0 1.0 1.0))
+(define-public yellow      '(1.0 1.0 0.0))
 
 (define-public grey        '(0.5 0.5 0.5))
 (define-public darkred     '(0.5 0.0 0.0))
 (define-public darkgreen   '(0.0 0.5 0.0))
 (define-public darkblue    '(0.0 0.0 0.5))
-(define-public darkcyan    '(0.5 0.5 0.0))
+(define-public darkcyan    '(0.0 0.5 0.5))
 (define-public darkmagenta '(0.5 0.0 0.5))
-(define-public darkyellow  '(0.0 0.5 0.5))
+(define-public darkyellow  '(0.5 0.5 0.0))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; key signature
+
+(define-public (key-signature-interface::alteration-position step alter
+							     c0-position)
+  ;; TODO: memoize - this is mostly constant.
+
+  ;; fes, ges, as and bes typeset in lower octave
+  (define FLAT_TOP_PITCH 2)
+
+  ;; ais and bis typeset in lower octave
+  (define SHARP_TOP_PITCH 4)
+
+  (if (pair? step)
+      (+ (cdr step) (* (car step) 7) c0-position)
+      (let* ((from-bottom-pos (modulo (+ 4 49 c0-position) 7))
+	     (p step)
+	     (c0 (- from-bottom-pos 4)))
+
+	(if
+	 (or (and (< alter 0)
+		  (or (> p FLAT_TOP_PITCH) (> (+ p c0) 4)) (> (+ p c0) 1))
+	     (and (> alter 0)
+		  (or (> p SHARP_TOP_PITCH) (> (+ p c0) 5)) (> (+ p c0) 2)))
+
+	 ;; Typeset below c_position
+	 (set! p (- p 7)))
+
+	;; Provide for the four cases in which there's a glitch
+	;; it's a hack, but probably not worth
+	;; the effort of finding a nicer solution.
+	;; --dl.
+	(cond
+	 ((and (= c0 2) (= p 3) (> alter 0))
+	  (set! p (- p 7)))
+	 ((and (= c0 -3) (= p -1) (> alter 0))
+	  (set! p (+ p 7)))
+	 ((and (= c0 -4) (= p -1) (< alter 0))
+	  (set! p (+ p 7)))
+	 ((and (= c0 -2) (= p -3) (< alter 0))
+	  (set! p (+ p 7))))
+
+	(+ c0 p))))
+
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Pitch Trill Heads
+;; accidentals
+
+(define-public (accidental-interface::calc-alteration grob)
+  (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
+
+(define-public cancellation-glyph-name-alist
+  '((0 . "accidentals.natural")))
+
+(define-public standard-alteration-glyph-name-alist
+  '(
+    ;; ordered for optimal performance.
+    (0 . "accidentals.natural")
+    (-1/2 . "accidentals.flat")
+    (1/2 . "accidentals.sharp")
+
+    (1 . "accidentals.doublesharp")
+    (-1 . "accidentals.flatflat")
+
+    (3/4 . "accidentals.sharp.slashslash.stemstemstem")
+    (1/4 . "accidentals.sharp.slashslash.stem")
+    (-1/4 . "accidentals.mirroredflat")
+    (-3/4 . "accidentals.mirroredflat.flat")))
+
+;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
+(define-public alteration-default-glyph-name-alist
+  standard-alteration-glyph-name-alist)
+
+(define-public makam-alteration-glyph-name-alist
+  '((1 . "accidentals.doublesharp")
+    (8/9 . "accidentals.sharp.slashslashslash.stemstem")
+    (5/9 . "accidentals.sharp.slashslashslash.stem")
+    (4/9 . "accidentals.sharp")
+    (1/9 . "accidentals.sharp.slashslash.stem")
+    (0 . "accidentals.natural")
+    (-1/9 . "accidentals.mirroredflat")
+    (-4/9 . "accidentals.flat.slash")
+    (-5/9 . "accidentals.flat")
+    (-8/9 . "accidentals.flat.slashslash")
+    (-1 . "accidentals.flatflat")))
+
+(define-public alteration-hufnagel-glyph-name-alist
+  '((-1/2 . "accidentals.hufnagelM1")
+    (0 . "accidentals.vaticana0")
+    (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-medicaea-glyph-name-alist
+  '((-1/2 . "accidentals.medicaeaM1")
+    (0 . "accidentals.vaticana0")
+    (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-vaticana-glyph-name-alist
+  '((-1/2 . "accidentals.vaticanaM1")
+    (0 . "accidentals.vaticana0")
+    (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-mensural-glyph-name-alist
+  '((-1/2 . "accidentals.mensuralM1")
+    (0 . "accidentals.vaticana0")
+    (1/2 . "accidentals.mensural1")))
+
 
-(define (parenthesize-elements grob)
-  (let*
-      ((elts (ly:grob-object grob 'elements))
-       (x-ext (ly:relative-group-extent elts grob X))
-       (font (ly:grob-default-font grob))
-       (lp (ly:font-get-glyph font "accidentals.leftparen"))
-       (rp (ly:font-get-glyph font "accidentals.rightparen"))
-       (padding 0.1))
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; * Pitch Trill Heads
+;; * Parentheses
+
+(define-public (parentheses-item::calc-parenthesis-stencils grob)
+  (let* ((font (ly:grob-default-font grob))
+	 (lp (ly:font-get-glyph font "accidentals.leftparen"))
+	 (rp (ly:font-get-glyph font "accidentals.rightparen")))
+
+    (list lp rp)))
+
+(define-public (parentheses-item::calc-angled-bracket-stencils grob)
+  (let* ((font (ly:grob-default-font grob))
+	 (lp (ly:stencil-aligned-to (ly:stencil-aligned-to
+				     (grob-interpret-markup
+				      grob
+				      (ly:wide-char->utf-8 #x2329))
+				     Y CENTER)
+				    X RIGHT))
+	 (rp (ly:stencil-aligned-to (ly:stencil-aligned-to
+				     (grob-interpret-markup
+				      grob
+				      (ly:wide-char->utf-8 #x232A))
+				     Y CENTER)
+				    X LEFT)))
+
+    (list (stencil-whiteout lp)
+	  (stencil-whiteout rp))))
+
+(define (parenthesize-elements grob . rest)
+  (let* ((refp (if (null? rest)
+		   grob
+		   (car rest)))
+	 (elts (ly:grob-object grob 'elements))
+	 (x-ext (ly:relative-group-extent elts refp X))
+	 (stencils (ly:grob-property grob 'stencils))
+	 (lp (car stencils))
+	 (rp (cadr stencils))
+	 (padding (ly:grob-property grob 'padding 0.1)))
 
     (ly:stencil-add
      (ly:stencil-translate-axis lp (- (car x-ext) padding) X)
-     (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))
-  ))
+     (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
+
+
+(define (parentheses-item::print me)
+  (let* ((elts (ly:grob-object me 'elements))
+	 (y-ref (ly:grob-common-refpoint-of-array me elts Y))
+	 (x-ref (ly:grob-common-refpoint-of-array me elts X))
+	 (stencil (parenthesize-elements me x-ref))
+	 (elt-y-ext (ly:relative-group-extent elts y-ref Y))
+	 (y-center (interval-center elt-y-ext)))
+
+    (ly:stencil-translate
+     stencil
+     (cons
+      (- (ly:grob-relative-coordinate me x-ref X))
+      (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
+
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+
+(define-public (chain-grob-member-functions grob value . funcs)
+  (for-each
+   (lambda (func)
+     (set! value (func grob value)))
+   funcs)
+
+  value)
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; falls/doits
+
+(define-public (bend::print spanner)
+  (define (close  a b)
+    (< (abs (- a b)) 0.01))
+
+  (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
+	 (left-span (ly:spanner-bound spanner LEFT))
+	 (dots (if (and (grob::has-interface left-span 'note-head-interface)
+			(ly:grob? (ly:grob-object left-span 'dot)))
+		   (ly:grob-object left-span 'dot) #f))
+
+	 (right-span (ly:spanner-bound spanner RIGHT))
+	 (thickness (* (ly:grob-property spanner 'thickness)
+		       (ly:output-def-lookup (ly:grob-layout spanner)
+					     'line-thickness)))
+	 (padding (ly:grob-property spanner 'padding 0.5))
+	 (common (ly:grob-common-refpoint right-span
+					  (ly:grob-common-refpoint spanner
+								   left-span X)
+					  X))
+	 (common-y (ly:grob-common-refpoint spanner left-span Y))
+	 (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
+
+	 (left-x (+ padding
+		    (max
+		     (interval-end (ly:grob-robust-relative-extent
+				    left-span common X))
+		     (if
+		      (and dots
+			   (close
+			    (ly:grob-relative-coordinate dots common-y Y)
+			    (ly:grob-relative-coordinate spanner common-y Y)))
+		      (interval-end
+		       (ly:grob-robust-relative-extent dots common X))
+		      ;; TODO: use real infinity constant.
+		      -10000))))
+	 (right-x (max (- (interval-start
+			   (ly:grob-robust-relative-extent right-span common X))
+			  padding)
+		       (+ left-x minimum-length)))
+	 (self-x (ly:grob-relative-coordinate spanner common X))
+	 (dx (- right-x left-x))
+	 (exp (list 'path thickness
+		    `(quote
+		      (rmoveto
+		       ,(- left-x self-x) 0
+
+		       rcurveto
+		       ,(/ dx 3)
+		       0
+		       ,dx ,(* 0.66 delta-y)
+		       ,dx ,delta-y)))))
+
+    (ly:make-stencil
+     exp
+     (cons (- left-x self-x) (- right-x self-x))
+     (cons (min 0 delta-y)
+	   (max 0 delta-y)))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; grace spacing
+
+(define-public (grace-spacing::calc-shortest-duration grob)
+  (let* ((cols (ly:grob-object grob 'columns))
+	 (get-difference
+	  (lambda (idx)
+	    (ly:moment-sub (ly:grob-property
+			    (ly:grob-array-ref cols (1+ idx)) 'when)
+			   (ly:grob-property
+			    (ly:grob-array-ref cols idx) 'when))))
+
+	 (moment-min (lambda (x y)
+		       (cond
+			((and x y)
+			 (if (ly:moment<? x y)
+			     x
+			     y))
+			(x x)
+			(y y)))))
+
+    (fold moment-min #f (map get-difference
+			     (iota (1- (ly:grob-array-length cols)))))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; fingering
+
+(define-public (fingering::calc-text grob)
+  (let* ((event (event-cause grob))
+	 (digit (ly:event-property event 'digit)))
+
+    (if (> digit 5)
+	(ly:input-message (ly:event-property event 'origin)
+			  "Warning: Fingering notation for finger number ~a"
+			  digit))
+
+    (number->string digit 10)))
+
+(define-public (string-number::calc-text grob)
+  (let ((digit (ly:event-property (event-cause grob) 'string-number)))
+
+    (number->string digit 10)))
+
+(define-public (stroke-finger::calc-text grob)
+  (let* ((digit (ly:event-property (event-cause grob) 'digit))
+	 (text (ly:event-property (event-cause grob) 'text)))
+
+    (if (string? text)
+	text
+	(vector-ref (ly:grob-property grob 'digit-names)
+		    (1- (max (min 5 digit) 1))))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; dynamics
+
+(define-public (hairpin::calc-grow-direction grob)
+  (if (eq? (ly:event-property (event-cause grob) 'class) 'decrescendo-event)
+      START
+      STOP))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; lyrics
+
+(define-public (lyric-text::print grob)
+  "Allow interpretation of tildes as lyric tieing marks."
+
+  (let ((text (ly:grob-property grob 'text)))
+
+    (grob-interpret-markup grob (if (string? text)
+				    (make-tied-lyric-markup text)
+				    text))))
+
+(define-public ((grob::calc-property-by-copy prop) grob)
+  (ly:event-property (event-cause grob) prop))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; fret boards
+
+(define-public (fret-board::calc-stencil grob)
+  (grob-interpret-markup
+   grob
+   (make-fret-diagram-verbose-markup
+    (ly:grob-property grob 'dot-placement-list))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; scripts
+
+(define-public (script-interface::calc-x-offset grob)
+  (ly:grob-property grob 'positioning-done)
+  (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
+	 (note-head-location
+	  (ly:self-alignment-interface::centered-on-x-parent grob))
+	 (note-head-grob (ly:grob-parent grob X))
+	 (stem-grob (ly:grob-object note-head-grob 'stem)))
+
+    (+ note-head-location
+       ;; If the property 'toward-stem-shift is defined and the script
+       ;; has the same direction as the stem, move the script accordingly.
+       ;; Since scripts can also be over skips, we need to check whether
+       ;; the grob has a stem at all.
+       (if (ly:grob? stem-grob)
+	   (let ((dir1 (ly:grob-property grob 'direction))
+		 (dir2 (ly:grob-property stem-grob 'direction)))
+	     (if (equal? dir1 dir2)
+		 (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
+			(stem-location
+			 (ly:grob-relative-coordinate stem-grob common-refp X)))
+		   (* shift (- stem-location note-head-location)))
+		 0.0))
+	   0.0))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; instrument names
+
+(define-public (system-start-text::print grob)
+  (let* ((left-bound (ly:spanner-bound grob LEFT))
+	 (left-mom (ly:grob-property left-bound 'when))
+	 (name (if (moment<=? left-mom ZERO-MOMENT)
+		   (ly:grob-property grob 'long-text)
+		   (ly:grob-property grob 'text))))
+
+    (if (and (markup? name)
+	     (!= (ly:item-break-dir left-bound) CENTER))
+
+	(grob-interpret-markup grob name)
+	(ly:grob-suicide! grob))))
+
+(define-public (system-start-text::calc-x-offset grob)
+  (let* ((left-bound (ly:spanner-bound grob LEFT))
+	 (left-mom (ly:grob-property left-bound 'when))
+	 (layout (ly:grob-layout grob))
+	 (indent (ly:output-def-lookup layout
+				       (if (moment<=? left-mom ZERO-MOMENT)
+					   'indent
+					   'short-indent)
+				       0.0))
+	 (system (ly:grob-system grob))
+	 (my-extent (ly:grob-extent grob system X))
+	 (elements (ly:grob-object system 'elements))
+	 (common (ly:grob-common-refpoint-of-array system elements X))
+	 (total-ext empty-interval)
+	 (align-x (ly:grob-property grob 'self-alignment-X 0))
+	 (padding (min 0 (- (interval-length my-extent) indent)))
+	 (right-padding (- padding
+			   (/ (* padding (1+ align-x)) 2))))
+
+    ;; compensate for the variation in delimiter extents by
+    ;; calculating an X-offset correction based on united extents
+    ;; of all delimiters in this system
+    (let unite-delims ((l (ly:grob-array-length elements)))
+      (if (> l 0)
+	  (let ((elt (ly:grob-array-ref elements (1- l))))
+
+	    (if (grob::has-interface elt 'system-start-delimiter-interface)
+		(let ((dims (ly:grob-extent elt common X)))
+		  (if (interval-sane? dims)
+		      (set! total-ext (interval-union total-ext dims)))))
+	    (unite-delims (1- l)))))
+
+    (+
+     (ly:side-position-interface::x-aligned-side grob)
+     right-padding
+     (- (interval-length total-ext)))))
+
+(define-public (system-start-text::calc-y-offset grob)
+
+  (define (live-elements-list me)
+    (let* ((elements (ly:grob-object me 'elements))
+	   (elts-length (ly:grob-array-length elements))
+	   (live-elements '()))
+
+      (let get-live ((len elts-length))
+	(if (> len 0)
+	    (let ((elt (ly:grob-array-ref elements (1- len))))
+
+	      (if (grob::is-live? elt)
+		  (set! live-elements (cons elt live-elements)))
+	      (get-live (1- len)))))
+      live-elements))
+
+  (let* ((left-bound (ly:spanner-bound grob LEFT))
+	 (live-elts (live-elements-list grob))
+	 (system (ly:grob-system grob))
+	 (extent empty-interval))
+
+    (if (and (pair? live-elts)
+	     (interval-sane? (ly:grob-extent grob system Y)))
+	(let get-extent ((lst live-elts))
+	  (if (pair? lst)
+	      (let ((axis-group (car lst)))
+
+		(if (and (ly:spanner? axis-group)
+			 (equal? (ly:spanner-bound axis-group LEFT)
+				 left-bound))
+		    (set! extent (add-point extent
+					    (ly:grob-relative-coordinate
+					     axis-group system Y))))
+		(get-extent (cdr lst)))))
+	;; no live axis group(s) for this instrument name -> remove from system
+	(ly:grob-suicide! grob))
+
+    (+
+     (ly:self-alignment-interface::y-aligned-on-self grob)
+     (interval-center extent))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ambitus
+
+(define-public (ambitus::print grob)
+  (let ((heads (ly:grob-object grob 'note-heads)))
+
+    (if (and (ly:grob-array? heads)
+	     (= (ly:grob-array-length heads) 2))
+	(let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
+	       (head-down (ly:grob-array-ref heads 0))
+	       (head-up (ly:grob-array-ref heads 1))
+	       (gap (ly:grob-property grob 'gap 0.35))
+	       (point-min (+ (interval-end (ly:grob-extent head-down common Y))
+			     gap))
+	       (point-max (- (interval-start (ly:grob-extent head-up common Y))
+			     gap)))
+
+	  (if (< point-min point-max)
+	      (let* ((layout (ly:grob-layout grob))
+		     (line-thick (ly:output-def-lookup layout 'line-thickness))
+		     (blot (ly:output-def-lookup layout 'blot-diameter))
+		     (grob-thick (ly:grob-property grob 'thickness 2))
+		     (width (* line-thick grob-thick))
+		     (x-ext (symmetric-interval (/ width 2)))
+		     (y-ext (cons point-min point-max))
+		     (line (ly:round-filled-box x-ext y-ext blot))
+		     (y-coord (ly:grob-relative-coordinate grob common Y)))
+
+		(ly:stencil-translate-axis line (- y-coord) Y))
+	      empty-stencil))
+	(begin
+	  (ly:grob-suicide! grob)
+	  (list)))))