+;;; sketch.scm -- implement Scheme output routines for Sketch
+;;;
+;;; source file of the GNU LilyPond music typesetter
+;;;
+;;; (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
+;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+
+;; als in:
+
+;; def dispats (out,x,y,expr):
+;; (symbol, rest) = expr
+;; if symbol == 'placebox':
+;; (dx,dy,expr) = rest
+;; dispats (out, x + dx, y + dy, expr)
+;; # hier wordt (X+DX) dus eerder gedaan dan dispats van EXPR.
+;; # er zijn geen "globale" variabelen.
+;; elif symbol == 'char':
+;; out.write ('moveto( %f %f); char(%d)' % (x,y,rest))
+
+
+;; (define (dispatch x y expr)
+;; (let ((keyword (car expr)))
+;; (cond
+;; ((eq? keyword 'placebox)
+;; (dispatch (+ x (cadr expr)) (+ y (caddr expr) (cadddr expr)))
+
+;; [etc.]
+;; ))
+
+
+
+(define-module (scm sketch)
+ :export (sketch-output-expression)
+ :no-backtrace)
+
+(define this-module (current-module))
+
+(define (sketch-output-expression expr port)
+ (display (dispatch expr) port))
+
+(use-modules
+ (guile)
+ (guile-user))
+
+(use-modules (ice-9 format))
+
+
+(define (dispatch expr)
+ (let ((keyword (car expr)))
+ (cond
+ ((eq? keyword 'placebox)
+ (dispatch-x-y (cadr expr) (+ 150 (caddr expr)) (cadddr expr)))
+ (else
+ (apply (eval keyword this-module) (cdr expr))))))
+
+(define (dispatch-x-y x y expr)
+ (apply (eval (car expr) this-module) (append (list x y) (cdr expr))))
+
+
+
+
+(define (ascii->string i) (make-string 1 (integer->char i)))
+
+(define (control->list x y c)
+ (list (+ x (car c)) (+ y (cdr c))))
+
+(define (control-flip-y c)
+ (cons (car c) (* -1 (cdr c))))
+
+;;; urg.
+(define (sketch-numbers->string l)
+ (string-append
+ (number->string (car l))
+ (if (null? (cdr l))
+ ""
+ (string-append "," (sketch-numbers->string (cdr l))))))
+
+(define font "")
+(define output-scale 1.0)
+(define (mul-scale x) (* output-scale x))
+
+(define (sketch-filled-rectangle width dy dx height x y)
+ (string-append
+ "fp((0,0,0))\n"
+ "lw(0.1)\n"
+ "r("
+ (sketch-numbers->string (map mul-scale (list width dy dx height x y)))
+ ")\n"))
+
+(define (sketch-bezier x y l)
+ (let* ((c0 (car (list-tail l 3)))
+ (c123 (list-head l 3))
+ (start (control->list x y c0))
+ (control (apply append
+ (map (lambda (c) (control->list x y c)) c123))))
+ (string-append
+ "bs(" (sketch-numbers->string (map mul-scale start)) ",0)\n"
+ "bc(" (sketch-numbers->string (map mul-scale control)) ",2)\n")))
+
+
+(define (sketch-beziers x y l thick)
+ (let* ((first (list-tail l 4))
+ (second (list-head l 4)))
+ (string-append
+ "fp((0,0,0))\n"
+ "lw(0.1)\n"
+ "b()\n"
+ (sketch-bezier x y first)
+ (sketch-bezier x y second))))
+
+
+;; alist containing fontname -> fontcommand assoc (both strings)
+(define font-alist '())
+(define font-count 0)
+(define current-font "")
+
+(define (fontify x y name-mag-pair exp)
+ (string-append (select-font name-mag-pair)
+ (apply (eval (car exp) this-module)
+ (append (list x y) (cdr exp)))))
+;; (if (string? exp) exp "")))
+
+(define (define-fonts x) "")
+
+(define (font-def x)
+"")
+
+
+(define (cached-fontname i)
+ "")
+
+(define (select-font name-mag-pair)
+ (set! font (car name-mag-pair))
+ "")
+
+(define (font-load-command name-mag command)
+ "")
+
+(define (beam x y width slope thick)
+ (apply sketch-filled-rectangle
+ (map mul-scale
+ (list width (* slope width) 0 thick x y))))
+
+(define (comment s)
+ (string-append "# " s))
+
+(define (bracket arch_angle arch_width arch_height height arch_thick thick)
+ (string-append
+ (numbers->string (list arch_angle arch_width arch_height height arch_thick thick)) " draw_bracket" ))
+
+(define (char x y i)
+ (string-append
+ "fp((0,0,0))\n"
+ "le()\n"
+ "lw(0.1)\n"
+ ;; "Fn('" global-font "')\n"
+ ;; "Fn('Times-Roman')\n"
+ "Fn('TeX-feta20')\n"
+ "Fs(20)\n"
+ ;; chars > 128 don't work yet
+ (format #f "txt('\\~o',(" (modulo i 128))
+ ;; "char(" ,(number->string i) ",("
+ (sketch-numbers->string (map mul-scale (list x y)))
+ "))\n"))
+
+(define (hairpin x y thick width starth endh )
+ (string-append
+ "#"
+ (numbers->string (list width starth endh thick))
+ " draw_hairpin"))
+
+;; what the heck is this interface ?
+(define (dashed-slur thick dash l)
+ (string-append
+ (apply string-append (map control->string l))
+ (ly-number->string thick)
+ " [ "
+ (ly-number->string dash)
+ " "
+ (ly-number->string (* 10 thick)) ;UGH. 10 ?
+ " ] 0 draw_dashed_slur"))
+
+(define (dashed-line thick on off dx dy)
+ (string-append
+ (ly-number->string dx)
+ " "
+ (ly-number->string dy)
+ " "
+ (ly-number->string thick)
+ " [ "
+ (ly-number->string on)
+ " "
+ (ly-number->string off)
+ " ] 0 draw_dashed_line"))
+
+(define (repeat-slash wid slope thick)
+ (string-append (numbers->string (list wid slope thick))
+ " draw_repeat_slash"))
+
+(define (end-output)
+ "guidelayer('Guide Lines',1,0,0,1,(0,0,1))
+grid((0,0,20,20),0,(0,0,1),'Grid')\n")
+
+(define (experimental-on) "")
+
+(define (font-switch i)
+ "")
+
+(define (header-end)
+ "")
+
+(define (lily-def key val)
+ (if (equal? key "lilypondpaperoutputscale")
+ ;; ugr
+ (set! output-scale (string->number val)))
+ "")
+
+
+(define (header creator generate)
+ (string-append
+ "##Sketch 1 2
+document()
+layout('A4',0)
+layer('Layer 1',1,1,0,0,(0,0,0))
+"))
+
+(define (invoke-char s i)
+ "")
+
+(define (invoke-dim1 s d)
+ (string-append
+ (ly-number->string (* d (/ 72.27 72))) " " s ))
+
+(define (bezier-sandwich x y l thick)
+ (apply
+ sketch-beziers (list x y (primitive-eval l) thick)))
+
+; TODO: use HEIGHT argument
+(define (start-line height)
+ "G()\n"
+ )
+
+;; r((520.305,0,0,98.0075,51.8863,10.089))
+;; width, 0, 0, height, x, y
+(define (filledbox x y breapth width depth height)
+ (apply sketch-filled-rectangle
+ (list
+ (+ breapth width) 0 0 (+ depth height) (- x breapth) (- y depth))))
+
+(define (stem x y z w) (filledbox x y z w))
+
+
+(define (stop-line)
+ "G_()\n")
+
+;; huh?
+(define (stop-last-line)
+ (stop-line))
+
+(define (text x y s)
+ (string-append "txt('" s "',(" (sketch-numbers->string
+ (map mul-scale (list x y))) "))\n"))
+
+
+(define (volta x y h w thick vert_start vert_end)
+ (string-append "#"
+ (numbers->string (list h w thick (inexact->exact vert_start) (inexact->exact vert_end)))
+ " draw_volta"))
+
+(define (tuplet x y ht gap dx dy thick dir)
+ (string-append "#"
+ (numbers->string (list ht gap dx dy thick (inexact->exact dir)))
+ " draw_tuplet"))
+
+
+(define (unknown)
+ "\n unknown\n")
+
+(define (ez-ball ch letter-col ball-col)
+ (string-append
+ " (" ch ") "
+ (numbers->string (list letter-col ball-col))
+ " /Helvetica-Bold " ;; ugh
+ " draw_ez_ball"))
+
+(define (define-origin a b c ) "")
+(define (no-origin) "")
+
+
projects / lilypond.git / commitdiff