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)
52 (format "/~a ~s StartData " font-set-name (string-length body))
57 "%!PS-Adobe-3.0 Resource-FontSet
58 %%DocumentNeededResources: ProcSet (FontSetInit)
60 %%IncludeResource: ProcSet (FontSetInit)
61 %%BeginResource: FontSet (~a)
64 /FontSetInit /ProcSet findresource begin
65 %%BeginData: ~s Binary Bytes
67 font-set-name font-set-name version (string-length binary-data)
78 (define (load-fonts paper)
79 (let* ((fonts (ly:paper-fonts paper))
80 (font-names (uniq-list (sort (map ly:font-file-name fonts) string<?)))
83 (let* ((cffname (string-append x ".cff"))
84 (aname (string-append x ".pfa"))
85 (bname (string-append x ".pfb"))
86 (cff-file-name (ly:find-file cffname))
87 (a-file-name (ly:kpathsea-find-file aname))
88 (b-file-name (ly:kpathsea-find-file bname)))
90 (cff-file-name (ps-embed-cff (ly:gulp-file cff-file-name) x 0))
91 (a-file-name (ly:gulp-file a-file-name))
92 (b-file-name (ly:pfb->pfa b-file-name))
94 (ly:warn "cannot find CFF/PFA/PFB font ~S" x)
96 (filter string? font-names))))
98 (string-join pfas "\n")))
100 (define (define-fonts paper)
102 (define font-list (ly:paper-fonts paper))
103 (define (define-font command fontname scaling)
105 "/" command " { /" fontname " findfont "
106 (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
108 (define (reencode-font fontname encoding scaling command)
109 (let ((coding-vector (get-coding-command encoding)))
111 "/" fontname " findfont " coding-vector " /" command " reencode-font\n"
112 "/" command "{ /" command " findfont " (ly:number->string scaling) " output-scale div scalefont } bind def\n")))
114 (define (standard-tex-font? x)
115 (or (equal? (substring x 0 2) "ms")
116 (equal? (substring x 0 2) "cm")))
118 (define (font-load-command font)
119 (let* ((specced-font-name (ly:font-name font))
120 (fontname (if specced-font-name
122 (ly:font-file-name font)))
124 (coding-alist (ly:font-encoding-alist font))
125 (input-encoding (assoc-get 'input-name coding-alist))
126 (font-encoding (assoc-get 'output-name coding-alist))
127 (command (ps-font-command font))
128 ;; FIXME -- see (ps-font-command )
129 (plain (ps-font-command font #f))
130 (designsize (ly:font-design-size font))
131 (magnification (* (ly:font-magnification font)))
132 (ops (ly:output-def-lookup paper 'outputscale))
133 (scaling (* ops magnification designsize)))
135 ;; Bluesky pfbs have UPCASE names (sigh.)
137 (if (standard-tex-font? fontname)
138 (set! fontname (string-upcase fontname)))
140 ;; debugging: [output]encoding is broken
141 ;; found so far: coding-alist is empty!
142 (pdebug "font: ~S\n" font)
143 (pdebug "fontname: ~S\n" fontname)
144 (pdebug "input-encoding:~S\n" input-encoding)
145 (pdebug "font-encoding:~S\n" font-encoding)
147 (pdebug "coding-alist:~S\n" coding-alist)
150 (define-font plain fontname scaling)
151 (if (equal? input-encoding font-encoding)
153 (reencode-font fontname input-encoding scaling command)))))
155 (define (font-load-encoding encoding)
156 (let ((file-name (get-coding-file-name encoding)))
157 (ly:gulp-file (ly:kpathsea-find-file file-name))))
159 (let* ((encoding-list (map (lambda (x)
160 (assoc-get 'input-name
161 (ly:font-encoding-alist x)))
163 (encodings (uniq-list (sort-list (filter string? encoding-list)
166 (pdebug "encodings:~S\n" encodings)
168 (apply string-append (map font-load-encoding encodings))
170 (map (lambda (x) (font-load-command x)) font-list)))))
172 ;; FIXME: duplicated in other output backends
173 ;; FIXME: silly interface name
174 (define (output-variables layout)
175 ;; FIXME: duplicates output-layout's scope-entry->string, mostly
176 (define (value->string val)
178 ((string? val) (string-append "(" val ")"))
179 ((symbol? val) (symbol->string val))
180 ((number? val) (number->string val))
183 (define (output-entry ps-key ly-key)
186 (value->string (ly:output-def-lookup layout ly-key)) " def \n"))
189 "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n"
190 (output-entry "staff-line-thickness" 'linethickness)
191 (output-entry "line-width" 'linewidth)
192 (output-entry "paper-size" 'papersizename)
193 (output-entry "staff-height" 'staffheight) ;junkme.
195 (number->string (ly:output-def-lookup layout 'outputscale))
196 " lily-output-units mul def \n"
197 (output-entry "page-height" 'vsize)
198 (output-entry "page-width" 'hsize)
201 (define (dump-page outputter page page-number page-count landscape?)
202 (ly:outputter-dump-string outputter
205 (number->string page-number) " " (number->string page-count) "\n"
209 "page-width output-scale mul 0 translate 90 rotate\n"
214 "set-ps-scale-to-lily-scale "
216 (ly:outputter-dump-stencil outputter page)
217 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
219 (define (eps-header paper bbox)
220 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
221 "%%Creator: creator time-stamp\n"
223 (string-join (map ly:number->string bbox) " ") "\n"
225 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
230 (define (page-header paper page-count)
231 (string-append "%!PS-Adobe-3.0\n"
232 "%%Creator: creator time-stamp\n"
233 "%%Pages: " (number->string page-count) "\n"
234 "%%PageOrder: Ascend\n"
236 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
239 "%%DocumentPaperSizes: "
240 (ly:output-def-lookup paper 'papersizename) "\n"))
242 (define (preamble paper)
244 (output-variables paper)
245 (ly:gulp-file "music-drawing-routines.ps")
246 (ly:gulp-file "lilyponddefs.ps")
248 (define-fonts paper)))
250 (define-public (output-framework outputter book scopes fields basename)
251 (let* ((paper (ly:paper-book-paper book))
252 (pages (ly:paper-book-pages book))
253 (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))
254 (page-number (1- (ly:output-def-lookup paper 'firstpagenumber)))
255 (page-count (length pages)))
259 (ly:outputter-dump-string outputter x))
261 (page-header paper page-count)
266 (set! page-number (1+ page-number))
267 (dump-page outputter page page-number page-count landscape?))
270 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
272 (define-public (output-preview-framework outputter book scopes fields basename)
273 (let* ((paper (ly:paper-book-paper book))
274 (systems (ly:paper-book-systems book))
275 (scale (ly:output-def-lookup paper 'outputscale ))
276 (titles (take-while ly:paper-system-title? systems))
277 (non-title (find (lambda (x)
278 (not (ly:paper-system-title? x))) systems))
280 (stack-stencils Y DOWN 0.0
281 (map ly:paper-system-stencil
282 (append titles (list non-title)))))
283 (xext (ly:stencil-extent dump-me X))
284 (yext (ly:stencil-extent dump-me Y))
288 (if (or (nan? x) (inf? x))
290 (list (car xext) (car yext)
291 (cdr xext) (cdr yext)))
296 (ly:outputter-dump-string outputter x))
302 (round (* x scale mm-to-bigpoint))))
307 (ly:outputter-dump-string outputter
308 (string-append "start-system { "
309 "set-ps-scale-to-lily-scale "
312 (ly:outputter-dump-stencil outputter dump-me)
313 (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n")))
315 (define-public (convert-to-pdf book name)
316 (let* ((defs (ly:paper-book-paper book))
317 (papersizename (ly:output-def-lookup defs 'papersizename)))
319 (if (equal? name "-")
320 (ly:warn "Can't convert <stdout> to PDF")
321 (postscript->pdf (if (string? papersizename) papersizename "a4")
324 (define-public (convert-to-png book name)
325 (let* ((defs (ly:paper-book-paper book))
326 (resolution (ly:output-def-lookup defs 'pngresolution)))
328 (postscript->png (if (number? resolution) resolution
330 (ly:get-option 'resolution))
333 (define-public (convert-to-dvi book name)
334 (ly:warn "Can not generate DVI via the postscript back-end"))
336 (define-public (convert-to-tex book name)
337 (ly:warn "Can not generate TeX via the postscript back-end"))
339 (define-public (convert-to-ps book name)