2 ;;; sketch.scm -- implement Scheme output routines for Sketch
4 ;;; source file of the GNU LilyPond music typesetter
6 ;;; (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
7 ;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 ;; def dispats (out,x,y,expr):
11 ;; (symbol, rest) = expr
12 ;; if symbol == 'placebox':
13 ;; (dx,dy,expr) = rest
14 ;; dispats (out, x + dx, y + dy, expr)
15 ;; # hier wordt (X+DX) dus eerder gedaan dan dispats van EXPR.
16 ;; # er zijn geen "globale" variabelen.
17 ;; elif symbol == 'char':
18 ;; out.write ('moveto( %f %f); char(%d)' % (x,y,rest))
24 ;; All functions have the signature
26 ;; NAME X Y ARGUMENTS-PASSED-BY-LILYPOND
29 (define-module (scm sketch))
30 (debug-enable 'backtrace)
32 (define this-module (current-module))
34 (define-public (sketch-output-expression expr port)
35 (display (dispatch expr) port))
37 (use-modules (ice-9 format) (guile) (lily))
40 ; (define (dispatch x y expr)
41 ; (let ((keyword (car expr)))
43 ; ((eq? keyword 'beam x y width slope thick)
44 ; ((eq? keyword 'bezier-bow x y l thick)
45 ; ((eq? keyword 'bezier-sandwich x y l thick)
46 ; ((eq? keyword 'bracket arch_angle arch_width arch_height height arch_thick thick)
47 ; ((eq? keyword 'char x y i)
48 ; ((eq? keyword 'comment s)
49 ; ((eq? keyword 'dashed-line thick on off dx dy)
50 ; ((eq? keyword 'dashed-slur thick dash l)
51 ; ((eq? keyword 'define-origin a b c ) "")
52 ; ((eq? keyword 'end-output)
53 ; ((eq? keyword 'experimental-on) "")
54 ; ((eq? keyword 'ez-ball ch letter-col ball-col)
55 ; ((eq? keyword 'filledbox x y breapth width depth height)
56 ; ((eq? keyword 'font-load-command name-mag command)
57 ; ((eq? keyword 'font-switch i)
58 ; ((eq? keyword 'header creator generate)
59 ; ((eq? keyword 'header-end)
60 ; ((eq? keyword 'invoke-char s i)
61 ; ((eq? keyword 'lily-def key val)
62 ; ((eq? keyword 'no-origin) "")
63 ; ((eq? keyword 'output-scale 1)
64 ; ((eq? keyword 'placebox)
65 ; (dispatch (+ x (cadr expr)) (+ y (caddr expr) (cadddr expr))))
66 ; ((eq? keyword 'repeat-slash wid slope thick)
67 ; ((eq? keyword 'roundfilledbox x y dx dy w h b)
68 ; ((eq? keyword 'select-font name-mag-pair)
69 ; ((eq? keyword 'start-system width height)
70 ; ((eq? keyword 'stem x y z w) (filledbox x y z w))
71 ; ((eq? keyword 'stop-last-system)
72 ; ((eq? keyword 'stop-system)
73 ; ((eq? keyword 'text x y s)
74 ; ((eq? keyword 'unknown)
79 (define current-y 150)
81 (define (dispatch expr)
82 (let ((keyword (car expr)))
84 ((eq? keyword 'placebox)
85 (dispatch-x-y (cadr expr) (+ current-y (caddr expr)) (cadddr expr)))
87 (apply (eval keyword this-module) (cdr expr))))))
89 (define (dispatch-x-y x y expr)
90 (apply (eval (car expr) this-module) (append (list x y) (cdr expr))))
92 (define (ascii->string i) (make-string 1 (integer->char i)))
94 (define (control->list x y c)
95 (list (+ x (car c)) (+ y (cdr c))))
97 (define (control-flip-y c)
98 (cons (car c) (* -1 (cdr c))))
101 (define (sketch-numbers->string l)
103 (number->string (car l))
106 (string-append "," (sketch-numbers->string (cdr l))))))
108 ;;;\def\scaletounit{ 2.83464566929134 mul }%
110 ;;(define output-scale 2.83464566929134)
112 (define scale-to-unit
114 ((equal? (ly:unit) "mm") (/ 72.0 25.4))
115 ((equal? (ly:unit) "pt") (/ 72.0 72.27))
116 (else (error "unknown unit" (ly:unit)))
119 (define (mul-scale x) (* scale-to-unit output-scale x))
121 (define (sketch-filled-rectangle width dy dx height x y)
126 (sketch-numbers->string (map mul-scale (list width dy dx height x y)))
130 (define (sketch-bezier x y l)
131 (let* ((c0 (car (list-tail l 3)))
132 (c123 (list-head l 3))
133 (start (control->list x y c0))
134 (control (apply append
135 (map (lambda (c) (control->list x y c)) c123))))
137 "bs(" (sketch-numbers->string (map mul-scale start)) ",0)\n"
138 "bc(" (sketch-numbers->string (map mul-scale control)) ",2)\n")))
142 (define (sketch-beziers x y l thick)
143 (let* ((first (list-tail l 4))
144 (second (list-head l 4)))
149 (sketch-bezier x y first)
150 (sketch-bezier x y second))))
153 ;; alist containing fontname -> fontcommand assoc (both strings)
155 ;;(define font-alist '(("feta13" . ("feta13" . "13"))
156 ;; ("feta20" . ("feta20" . "20"))))
157 (define font-alist '(("feta13" . ("LilyPond-Feta13" . "13"))
158 ;; ("feta20" . ("LilyPond-Feta-20" . "20")
159 ("feta20" . ("GNU-LilyPond-feta-20" . "20")
163 (define font (cdar font-alist))
165 (define font-count 0)
166 (define current-font "")
168 (define (fontify x y name-mag-pair exp)
169 (string-append (select-font name-mag-pair)
170 (apply (eval (car exp) this-module)
171 (append (list x y) (cdr exp)))))
172 ;; (if (string? exp) exp "")))
174 (define (define-fonts x) "")
180 (define (cached-fontname i)
184 (define (roundfilledbox x y dx dy w h b)
185 (sketch-filled-rectangle w 0 0 h x y))
187 (define (polygon points blotdiameter) "") ;; TODO
189 (define (select-font name-mag-pair)
190 ;; name-mag-pair: (quote ("feta20" . 0.569055118110236))"feta20"(quote ("feta20" . 0.569055118110236))
191 (let ((f (assoc (caadr name-mag-pair) font-alist)))
194 (format #t "font not found: ~s\n" (caadr name-mag-pair))))
198 (define (font-load-command name-mag command)
201 (define (beam x y width slope thick)
202 (apply sketch-filled-rectangle
203 (list width (* slope width) 0 thick x y)))
206 (string-append "# " s "\n"))
208 (define (bracket arch_angle arch_width arch_height height arch_thick thick)
210 (numbers->string (list arch_angle arch_width arch_height height arch_thick thick)) " draw_bracket" ))
217 "Fn('" (car font) "')\n"
218 "Fs(" (cdr font) ")\n"
219 ;; how to get zero-left padding with ``Guile's fprintf'' ?
220 ;;(format #f "txt('\\x~2x',(" i)
221 ;;(format #f "txt('\\x~02x',(" i)
224 (format #f "txt('\\x0~x',(" i)
225 (format #f "txt('\\x~x',(" i))
226 (sketch-numbers->string (map mul-scale (list x y)))
230 ;; what the heck is this interface ?
231 (define (dashed-slur thick dash l)
233 (apply string-append (map number-pair->string l))
234 (ly:number->string thick)
236 (ly:number->string dash)
238 (ly:number->string (* 10 thick)) ;UGH. 10 ?
239 " ] 0 draw_dashed_slur"))
241 (define (dashed-line thick on off dx dy)
243 (ly:number->string dx)
245 (ly:number->string dy)
247 (ly:number->string thick)
249 (ly:number->string on)
251 (ly:number->string off)
252 " ] 0 draw_dashed_line"))
254 (define (repeat-slash wid slope thick)
255 (string-append (numbers->string (list wid slope thick))
256 " draw_repeat_slash"))
259 "guidelayer('Guide Lines',1,0,0,1,(0,0,1))
260 grid((0,0,20,20),0,(0,0,1),'Grid')\n")
262 (define (experimental-on) "")
264 (define (font-switch i)
270 (define output-scale 1)
272 (define (lily-def key val)
273 (if (equal? key "lilypondpaperoutputscale")
275 (set! output-scale (string->number val))
280 (define (header creator generate)
285 layer('Layer 1',1,1,0,0,(0,0,0))
288 (define (invoke-char s i)
291 ;; TODO: bezier-ending, see ps.scm
292 (define (bezier-bow x y l thick)
293 (bezier-sandwich x y l thick))
295 (define (bezier-sandwich x y l thick)
297 sketch-beziers (list x y (primitive-eval l) thick)))
299 (define (start-system width height)
300 (set! current-y (- current-y height))
303 ;; r((520.305,0,0,98.0075,51.8863,10.089))
304 ;; width, 0, 0, height, x, y
305 (define (filledbox x y breapth width depth height)
306 (apply sketch-filled-rectangle
308 (+ breapth width) 0 0 (+ depth height) (- x breapth) (- y depth))))
310 (define (stem x y z w) (filledbox x y z w))
313 (define (stop-system)
317 (define (stop-last-system)
325 "Fn('" (car font) "')\n"
326 "Fs(" (cdr font) ")\n"
328 "txt('" s "',(" (sketch-numbers->string
329 (map mul-scale (list x y))) "))\n"))
334 (define (ez-ball ch letter-col ball-col)
337 (numbers->string (list letter-col ball-col))
338 " /Helvetica-Bold " ;; ugh
341 (define (define-origin a b c ) "")
342 (define (no-origin) "")