1 ;;; ps.scm -- implement Scheme output routines for PostScript
3 ;;; source file of the GNU LilyPond music typesetter
5 ;;; (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
6 ;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 (define (ps-scm action-name)
11 ;; alist containing fontname -> fontcommand assoc (both strings)
12 (define font-alist '())
14 (define current-font "")
17 (define (cached-fontname i)
20 (make-string 1 (integer->char (+ 65 i)))))
23 (define (select-font name-mag-pair)
26 (c (assoc name-mag-pair font-name-alist))
32 (display (object-type (car name-mag-pair)))
33 (display (object-type (caaar font-name-alist)))
35 (ly-warn (string-append
36 "Programming error: No such font known "
37 (car name-mag-pair) " "
38 (ly-number->string (cdr name-mag-pair))
41 "") ; issue no command
42 (string-append " " (cddr c) " "))
45 (define (font-load-command name-mag command)
51 "12 " (ly-number->string (cdr name-mag)) " mul "
52 "lilypondpaperoutputscale div scalefont setfont } bind def "
55 (define (beam width slope thick)
57 (numbers->string (list slope width thick)) " draw_beam" ))
60 (string-append "% " s))
62 (define (bracket arch_angle arch_width arch_height height arch_thick thick)
64 (numbers->string (list arch_angle arch_width arch_height height arch_thick thick)) " draw_bracket" ))
67 (invoke-char " show" i))
70 (define (hairpin thick width starth endh )
72 (numbers->string (list width starth endh thick))
75 ;; what the heck is this interface ?
76 (define (dashed-slur thick dash l)
78 (apply string-append (map control->string l))
79 (ly-number->string thick)
81 (ly-number->string dash)
83 (ly-number->string (* 10 thick)) ;UGH. 10 ?
84 " ] 0 draw_dashed_slur"))
86 (define (dashed-line thick on off dx dy)
88 (ly-number->string dx)
90 (ly-number->string dy)
92 (ly-number->string thick)
94 (ly-number->string on)
96 (ly-number->string off)
97 " ] 0 draw_dashed_line"))
99 (define (repeat-slash wid slope thick)
100 (string-append (numbers->string (list wid slope thick))
101 " draw_repeat_slash"))
104 "\nend-lilypond-output\n")
106 (define (experimental-on) "")
108 (define (filledbox breapth width depth height)
109 (string-append (numbers->string (list breapth width depth height))
113 (define (font-def i s)
116 (substring s 0 (- (string-length s) 4))
117 " findfont 12 scalefont setfont} bind def \n"))
119 (define (font-switch i)
120 (string-append (font i) " "))
124 ;; URG: now we can't use scm output without Lily
125 (ly-gulp-file "lilyponddefs.ps")
126 " {exch pop //systemdict /run get exec} "
127 (ly-gulp-file "music-drawing-routines.ps")
128 "{ exch pop //systemdict /run get exec } "
129 (if (defined? 'ps-testing) "\n /testing true def" "")
132 (define (lily-def key val)
134 (if (string=? (substring key 0 (min (string-length "lilypondpaper") (string-length key))) "lilypondpaper")
135 (string-append "/" key " {" val "} bind def\n")
136 (string-append "/" key " (" val ") def\n")
140 (define (header creator generate)
143 "%%Creator: " creator generate "\n"))
145 (define (invoke-char s i)
147 "(\\" (inexact->string i 8) ") " s " " ))
149 (define (invoke-dim1 s d)
151 (ly-number->string (* d (/ 72.27 72))) " " s ))
153 (define (placebox x y s)
155 (ly-number->string x) " " (ly-number->string y) " {" s "} place-box\n"))
157 (define (bezier-sandwich l thick)
159 (apply string-append (map control->string l))
160 (ly-number->string thick)
161 " draw_bezier_sandwich"))
163 ; TODO: use HEIGHT argument
164 (define (start-line height)
167 (ly-number->string height)
169 lilypondpaperoutputscale lilypondpaperoutputscale scale
172 (define (stem breapth width depth height)
173 (string-append (numbers->string (list breapth width depth height))
180 (string-append "(" s ") show "))
183 (define (volta h w thick vert_start vert_end)
185 (numbers->string (list h w thick (inexact->exact vert_start) (inexact->exact vert_end)))
188 (define (tuplet ht gap dx dy thick dir)
190 (numbers->string (list ht gap dx dy thick (inexact->exact dir)))
197 (define (ez-ball ch letter-col ball-col)
200 (numbers->string (list letter-col ball-col))
201 " /Helvetica-Bold " ;; ugh
204 (define (define-origin a b c ) "")
205 (define (no-origin) "")
208 (cond ((eq? action-name 'all-definitions)
211 (define tuplet ,tuplet)
212 (define bracket ,bracket)
214 (define hairpin ,hairpin)
215 (define volta ,volta)
216 (define bezier-sandwich ,bezier-sandwich)
217 (define dashed-line ,dashed-line)
218 (define dashed-slur ,dashed-slur)
219 (define end-output ,end-output)
220 (define experimental-on ,experimental-on)
221 (define filledbox ,filledbox)
222 (define font-def ,font-def)
223 (define font-switch ,font-switch)
224 (define header-end ,header-end)
225 (define lily-def ,lily-def)
226 (define font-load-command ,font-load-command)
227 (define header ,header)
228 (define invoke-char ,invoke-char)
229 (define invoke-dim1 ,invoke-dim1)
230 (define placebox ,placebox)
231 (define select-font ,select-font)
232 (define start-line ,start-line)
234 (define stop-line ,stop-line)
235 (define stop-last-line ,stop-line)
236 (define repeat-slash ,repeat-slash)
238 (define no-origin ,no-origin)
239 (define define-origin ,define-origin)
240 (define ez-ball ,ez-ball)
242 ((eq? action-name 'repeat-slash) repeat-slash)
243 ((eq? action-name 'tuplet) tuplet)
244 ((eq? action-name 'beam) beam)
245 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
246 ((eq? action-name 'bracket) bracket)
247 ((eq? action-name 'char) char)
248 ((eq? action-name 'dashed-line) dashed-line)
249 ((eq? action-name 'dashed-slur) dashed-slur)
250 ((eq? action-name 'hairpin) hairpin)
251 ((eq? action-name 'experimental-on) experimental-on)
252 ((eq? action-name 'filledbox) filledbox)
253 ((eq? action-name 'ez-ball) ez-ball)
254 ((eq? action-name 'select-font) select-font)
255 ((eq? action-name 'volta) volta)
256 (else (error "unknown tag -- PS-SCM " action-name))
260 (define (scm-ps-output)
261 (primitive-eval (ps-scm 'all-definitions)))