1 ;;;; framework-ps.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 (define-module (scm framework-ps))
9 (use-modules (ice-9 regex)
17 (define (stderr string . rest)
18 (apply format (cons (current-error-port) (cons string rest)))
19 (force-output (current-error-port)))
21 ;;(define pdebug stderr)
22 (define (pdebug . rest) #f)
24 (define mm-to-bigpoint
27 (define-public (ps-font-command font . override-coding)
28 (let* ((name (ly:font-file-name font))
29 (magnify (ly:font-magnification font))
30 (coding-alist (ly:font-encoding-alist font))
31 (input-encoding (assoc-get 'input-name coding-alist))
32 (font-encoding (assoc-get 'output-name coding-alist))
33 (coding-command (if (null? override-coding)
34 (if (equal? input-encoding font-encoding)
36 (car override-coding))))
39 "magfont" (string-encode-integer (hashq name 1000000))
40 "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))
41 (if (not coding-command) "" (string-append "e" coding-command)))))
43 (define (tex-font? fontname)
45 (equal? (substring fontname 0 2) "cm")
46 (equal? (substring fontname 0 2) "ec")))
48 (define (ps-embed-cff body font-set-name version)
51 "%!PS-Adobe-3.0 Resource-FontSet
52 %%DocumentNeededResources: ProcSet (FontSetInit)
54 %%IncludeResource: ProcSet (FontSetInit)
55 %%BeginResource: FontSet (~a)
58 /FontSetInit /ProcSet findresource begin
59 %%BeginData: ~s Binary Bytes
61 font-set-name font-set-name version 0 font-set-name (string-length body)
74 (define (load-fonts paper)
75 (let* ((fonts (ly:paper-fonts paper))
76 (font-names (uniq-list (sort (map ly:font-file-name fonts) string<?)))
79 (let* ((cffname (string-append x ".cff"))
80 (aname (string-append x ".pfa"))
81 (bname (string-append x ".pfb"))
82 (cffpath (ly:find-file cffname))
83 (apath (ly:kpathsea-find-file aname))
84 (bpath (ly:kpathsea-find-file bname)))
85 (display (list x cffpath))
87 (cffpath (ps-embed-cff (ly:gulp-file cffpath) x 0))
88 (apath (ly:gulp-file apath))
89 (bpath (ly:pfb->pfa bpath))
91 (ly:warn "cannot find T42/PFA/PFB font ~S" x)
93 (filter string? font-names))))
95 (string-join pfas "\n")))
97 (define (define-fonts paper)
99 (define font-list (ly:paper-fonts paper))
100 (define (define-font command fontname scaling)
102 "/" command " { /" fontname " findfont "
103 (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
105 (define (reencode-font fontname encoding scaling command)
106 (let ((coding-vector (get-coding-command encoding)))
108 "/" fontname " findfont " coding-vector " /" command " reencode-font\n"
109 "/" command "{ /" command " findfont " (ly:number->string scaling) " output-scale div scalefont } bind def\n")))
111 (define (standard-tex-font? x)
112 (or (equal? (substring x 0 2) "ms")
113 (equal? (substring x 0 2) "cm")))
115 (define (font-load-command font)
116 (let* ((specced-font-name (ly:font-name font))
117 (fontname (if specced-font-name
119 (ly:font-file-name font)))
121 (coding-alist (ly:font-encoding-alist font))
122 (input-encoding (assoc-get 'input-name coding-alist))
123 (font-encoding (assoc-get 'output-name coding-alist))
124 (command (ps-font-command font))
125 ;; FIXME -- see (ps-font-command )
126 (plain (ps-font-command font #f))
127 (designsize (ly:font-design-size font))
128 (magnification (* (ly:font-magnification font)))
129 (ops (ly:output-def-lookup paper 'outputscale))
130 (scaling (* ops magnification designsize)))
132 ;; Bluesky pfbs have UPCASE names (sigh.)
134 (if (standard-tex-font? fontname)
135 (set! fontname (string-upcase fontname)))
137 ;; debugging: [output]encoding is broken
138 ;; found so far: coding-alist is empty!
139 (pdebug "font: ~S\n" font)
140 (pdebug "fontname: ~S\n" fontname)
141 (pdebug "input-encoding:~S\n" input-encoding)
142 (pdebug "font-encoding:~S\n" font-encoding)
144 (pdebug "coding-alist:~S\n" coding-alist)
147 (define-font plain fontname scaling)
148 (if (equal? input-encoding font-encoding)
150 (reencode-font fontname input-encoding scaling command)))))
152 (define (font-load-encoding encoding)
153 (let ((file-name (get-coding-file-name encoding)))
154 (ly:gulp-file (ly:kpathsea-find-file file-name))))
156 (let* ((encoding-list (map (lambda (x)
157 (assoc-get 'input-name
158 (ly:font-encoding-alist x)))
160 (encodings (uniq-list (sort-list (filter string? encoding-list)
163 (pdebug "encodings:~S\n" encodings)
165 (apply string-append (map font-load-encoding encodings))
167 (map (lambda (x) (font-load-command x)) font-list)))))
169 ;; FIXME: duplicated in other output backends
170 ;; FIXME: silly interface name
171 (define (output-variables layout)
172 ;; FIXME: duplicates output-layout's scope-entry->string, mostly
173 (define (value->string val)
175 ((string? val) (string-append "(" val ")"))
176 ((symbol? val) (symbol->string val))
177 ((number? val) (number->string val))
180 (define (output-entry ps-key ly-key)
183 (value->string (ly:output-def-lookup layout ly-key)) " def \n"))
186 "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n"
187 (output-entry "staff-line-thickness" 'linethickness)
188 (output-entry "line-width" 'linewidth)
189 (output-entry "paper-size" 'papersizename)
190 (output-entry "staff-height" 'staffheight) ;junkme.
192 (number->string (ly:output-def-lookup layout 'outputscale))
193 " lily-output-units mul def \n"
194 (output-entry "page-height" 'vsize)
195 (output-entry "page-width" 'hsize)
198 (define (dump-page outputter page page-number page-count landscape?)
199 (ly:outputter-dump-string outputter
202 (number->string page-number) " " (number->string page-count) "\n"
206 "page-width output-scale mul 0 translate 90 rotate\n"
211 "set-ps-scale-to-lily-scale "
213 (ly:outputter-dump-stencil outputter page)
214 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
216 (define (eps-header paper bbox)
217 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
218 "%%Creator: creator time-stamp\n"
220 (string-join (map ly:number->string bbox) " ") "\n"
222 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
227 (define (page-header paper page-count)
228 (string-append "%!PS-Adobe-3.0\n"
229 "%%Creator: creator time-stamp\n"
230 "%%Pages: " (number->string page-count) "\n"
231 "%%PageOrder: Ascend\n"
233 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
236 "%%DocumentPaperSizes: "
237 (ly:output-def-lookup paper 'papersizename) "\n"))
239 (define (preamble paper)
241 (output-variables paper)
242 (ly:gulp-file "music-drawing-routines.ps")
243 (ly:gulp-file "lilyponddefs.ps")
245 (define-fonts paper)))
247 (define-public (output-framework outputter book scopes fields basename)
248 (let* ((paper (ly:paper-book-paper book))
249 (pages (ly:paper-book-pages book))
250 (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))
251 (page-number (1- (ly:output-def-lookup paper 'firstpagenumber)))
252 (page-count (length pages)))
256 (ly:outputter-dump-string outputter x))
258 (page-header paper page-count)
263 (set! page-number (1+ page-number))
264 (dump-page outputter page page-number page-count landscape?))
267 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
269 (define-public (output-preview-framework outputter book scopes fields basename)
270 (let* ((paper (ly:paper-book-paper book))
271 (systems (ly:paper-book-systems book))
272 (scale (ly:output-def-lookup paper 'outputscale ))
273 (titles (take-while ly:paper-system-title? systems))
274 (non-title (find (lambda (x)
275 (not (ly:paper-system-title? x))) systems))
277 (stack-stencils Y DOWN 0.0
278 (map ly:paper-system-stencil
279 (append titles (list non-title)))))
280 (xext (ly:stencil-extent dump-me X))
281 (yext (ly:stencil-extent dump-me Y))
285 (if (or (nan? x) (inf? x))
287 (list (car xext) (car yext)
288 (cdr xext) (cdr yext)))
293 (ly:outputter-dump-string outputter x))
299 (round (* x scale mm-to-bigpoint))))
304 (ly:outputter-dump-string outputter
305 (string-append "start-system { "
306 "set-ps-scale-to-lily-scale "
309 (ly:outputter-dump-stencil outputter dump-me)
310 (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n")))
312 (define-public (convert-to-pdf book name)
313 (let* ((defs (ly:paper-book-paper book))
314 (papersizename (ly:output-def-lookup defs 'papersizename)))
316 (if (equal? name "-")
317 (ly:warn "Can't convert <stdout> to PDF")
318 (postscript->pdf (if (string? papersizename) papersizename "a4")
321 (define-public (convert-to-png book name)
322 (let* ((defs (ly:paper-book-paper book))
323 (resolution (ly:output-def-lookup defs 'pngresolution)))
325 (postscript->png (if (number? resolution) resolution
327 (ly:get-option 'resolution))
330 (define-public (convert-to-dvi book name)
331 (ly:warn "Can not generate DVI via the postscript back-end"))
333 (define-public (convert-to-tex book name)
334 (ly:warn "Can not generate TeX via the postscript back-end"))
336 (define-public (convert-to-ps book name)