X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-lib.scm;h=2496763397fd36deaf92990a186c2e07ecb456bf;hb=198f4d748307a3d6d8be3bb29e4197606f24b6b8;hp=039121f527a435990c68913c0ffd49445ab357c1;hpb=76f9939b4f91444f4dfbb1e4e387b480c35abb94;p=lilypond.git

diff --git a/scm/output-lib.scm b/scm/output-lib.scm
index 039121f527..2496763397 100644
--- a/scm/output-lib.scm
+++ b/scm/output-lib.scm
@@ -2,36 +2,95 @@
 ;;;;
 ;;;;  source file of the GNU LilyPond music typesetter
 ;;;; 
-;;;; (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
 
 
-(define (arg->string arg)
-  (cond ((number? arg) (inexact->string arg 10))
+;;; 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)))))))
+
+
+; default tunings for common string instruments
+(define-public guitar-tuning '(4 -1 -5 -10 -15 -20))
+(define-public guitar-open-g-tuning '(2 -1 -5 -10 -17 -22))
+(define-public bass-tuning '(-17 -22 -27 -32))
+(define-public mandolin-tuning '(16 9 2 -5))
+
+;; 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 tuning to 4-string by removing the 5th string
+(define-public (four-string-banjo tuning)
+  (reverse (cdr (reverse tuning))))
+
+;;; end of tablature functions
+
+(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)))
+
+(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) "\""))))
 
-;; ugh: naming.
-(define (func name . args)
-  (string-append 
-   "(" name 
-   (if (null? args) 
-       ""
-       (apply string-append 
-	      (map (lambda (x) (string-append " " (arg->string x))) args)))
-   ")\n"))
+(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 (ly:text-interface::interpret-markup
+		  layout props (make-circle-markup text))))
+    circle))
 
 
 ;;(define (mm-to-pt x)
 ;;  (* (/ 72.27 25.40) x))
 
 ;; do nothing in .scm output
-(define (comment s) "")
-
-(define (numbers->string l)
-  (apply string-append (map ly-number->string l)))
 
-; (define (chop-decimal x) (if (< (abs x) 0.001) 0.0 x))
+(define-public (ly:numbers->string lst)
+  (string-join (map ly:number->string lst) " "))
 
 (define (number->octal-string x)
   (let* ((n (inexact->exact x))
@@ -42,57 +101,65 @@
      (number->string n8)
      (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
 
-(define (inexact->string x radix)
+(define-public (ly:inexact->string x radix)
   (let ((n (inexact->exact x)))
     (number->string n radix)))
 
-
-(define (control->string c)
-  (string-append (number->string (car c)) " "
-		 (number->string (cdr c)) " "))
-
-(define (font i)
-  (string-append
-   "font"
-   (make-string 1 (integer->char (+ (char->integer #\A) i)))))
-
-(define (scm-scm action-name)
-  1)
+(define-public (ly:number-pair->string c)
+  (string-append (ly:number->string (car c)) " "
+		 (ly:number->string (cdr c))))
 
 
 ;; silly, use alist? 
-(define (find-notehead-symbol duration style)
-  (case style
-   ((xcircle) "2xcircle")
-   ((harmonic) "0mensural")
-   ((baroque) 
-    (string-append (number->string duration)
-		   (if (< duration 0) "mensural" "")))
-   ((mensural) (string-append (number->string duration) (symbol->string style)))
-   ((default) (number->string duration))
-   (else
-    (string-append (number->string (max 0 duration)) (symbol->string style)))))
-
-
-(define (note-head-style->attachment-coordinates style)
+(define-public (note-head::calc-glyph-name grob)
+  (let*
+      ((style (ly:grob-property grob 'style))
+       (log (min 2 (ly:grob-property grob 'duration-log))))
+    
+    (case style
+      ((xcircle) "2xcircle")
+      ((harmonic) "0harmonic")
+      ((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
+       ;; other note heads from the default font.  -- jr
+       (if (< log 0)
+	   (string-append (number->string log) "neomensural")
+	   (number->string log)))
+      ((mensural)
+       (string-append (number->string log) (symbol->string style)))
+      ((petrucci)
+       (if (< log 0)
+	   (string-append (number->string log) "mensural")
+	   (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."
 
-  (case style
-    ((default) '(1.0 . 0.5))
-    ((cross) '(1.0 . 0.75))
-    ((mensural) '(0.0 . 0.6))
-    ((neo_mensural) '(0.0 . 0.6))
-    ((diamond) '(1.0 . 0.8))
-    ((transparent) '(1.0 . 1.0))
-    ((slash) '(1.0 . 1.0))
-    ((harmonic) '(1.0 0.0))
-    (else
-     '(1.0 . 0.0)
-     )))
-		     
-(define (string-encode-integer i)
+  '(1.0 . 0.0))
+
+(define-public (string-encode-integer i)
   (cond
    ((= i  0) "o")
    ((< i 0)   (string-append "n" (string-encode-integer (- i))))
@@ -100,32 +167,238 @@ centered, X==1 is at the right, X == -1 is at the left."
 	  (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 ly: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))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Bar lines.
+
+;;
+;; How should a  bar line behave at a break? 
+;;
+;; Why prepend `default-' to every scm identifier?
+(define-public (bar-line::calc-glyph-name grob)
+  (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"))  )))
+	 (glyph-name (if (= dir CENTER)
+			 glyph
+		         (if (and result (string? (index-cell (cdr result) dir)))
+			     (index-cell (cdr result) dir)
+			     #f)))
+	 )
+
+    (if (not glyph-name)
+	(ly:grob-suicide! grob))
+
+    glyph-name))
+
+
+(define-public (shift-right-at-line-begin g)
+  "Shift an item to the right, but only at the start of the line."
+  (if (and (ly:item? g)
+	   (equal? (ly:item-break-dir g) RIGHT))
+      (ly:grob-translate-axis! g 3.5 X)))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tuplets
+
+(define-public (tuplet-number::calc-denominator-text grob)
+  (let*
+      ((ev (ly:grob-property grob 'cause)))
+    
+    (number->string (ly:event-property ev 'denominator))))
+
+
+(define-public (tuplet-number::calc-fraction-text grob)
+  (let*
+      ((ev (ly:grob-property grob 'cause)))
+    (format "~a:~a" 
+      (ly:event-property ev 'denominator)
+      (ly:event-property ev 'numerator))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Color
+
+(define-public color? list?)
+
+; predefined colors
+(define-public black       '(0.0 0.0 0.0))
+(define-public white       '(1.0 1.0 1.0))
+(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        '(0.0 1.0 1.0))
+(define-public magenta     '(1.0 0.0 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    '(0.0 0.5 0.5))
+(define-public darkmagenta '(0.5 0.0 0.5))
+(define-public darkyellow  '(0.5 0.5 0.0))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; * Pitch Trill Heads
+;; * Parentheses
+
+(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))
+
+       (font (ly:grob-default-font grob))
+       (lp (ly:font-get-glyph font "accidentals.leftparen"))
+       (rp (ly:font-get-glyph font "accidentals.rightparen"))
+       (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))
+  ))
+
+
+(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
+
+(define-public (fall::print spanner)
+  (let*
+      ((delta (ly:grob-property spanner 'delta-position))
+       (left-span (ly:spanner-bound spanner LEFT))
+       (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))
+       (left-x (+ padding  (interval-end  (ly:grob-robust-relative-extent left-span common X))))
+       (right-x (- (interval-start  (ly:grob-robust-relative-extent right-span common X)) padding))
+       (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)
+		     ,dx ,delta
+		     ))))
+       )
+
+    (ly:make-stencil
+     exp
+     (cons 0 dx)
+     (cons (min 0 delta)
+	   (max 0 delta)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; 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)))))))
 
-(define (tex-encoded-fontswitch name-mag)
-  (let* ((iname-mag (car name-mag))
-	 (ename-mag (cdr name-mag)))
-    (cons iname-mag
-	  (cons ename-mag
-		(string-append  "magfont"
-			  (string-encode-integer
-			   (hashq (car ename-mag) 1000000))
-			  "m"
-			  (string-encode-integer
-			   (inexact->exact (* 1000 (cdr ename-mag)))))))))
-
-(define (define-fonts internal-external-name-mag-pairs)
-  (set! font-name-alist (map tex-encoded-fontswitch
-			     internal-external-name-mag-pairs))
-  (apply string-append
-	 (map (lambda (x)
-		(font-load-command (car x) (cdr x)))
-	      (map cdr font-name-alist))))
-
-;; urg, how can exp be #unspecified?  -- in sketch output
-(define (xfontify name-mag-pair exp)
-  (string-append (select-font name-mag-pair)
-		 exp))
-
-(define (fontify name-mag-pair exp)
-  (string-append (select-font name-mag-pair)
-		 (if (string? exp) exp "")))