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-filename 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 (load-fonts paper)
49 (let* ((fonts (ly:paper-fonts paper))
50 (font-names (uniq-list (sort (map ly:font-filename fonts) string<?)))
54 (let* ((aname (string-append x ".pfa"))
55 (apath (ly:kpathsea-expand-path aname))
57 (bpath (if (not apath)
58 (ly:kpathsea-expand-path
59 (string-append x ".pfb"))
62 (apath (ly:gulp-file apath))
63 (bpath (ly:pfb->pfa bpath))
65 (ly:warn "Can't find PFA font ~S" x)
67 (filter string? font-names))))
69 (string-join pfas "\n")))
71 (define (define-fonts paper)
73 (define font-list (ly:paper-fonts paper))
74 (define (define-font command fontname scaling)
76 "/" command " { /" fontname " findfont "
77 (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
79 (define (reencode-font fontname encoding scaling command)
80 (let ((coding-vector (get-coding-command encoding)))
82 "/" fontname " findfont " coding-vector " /" command " reencode-font\n"
83 "/" command "{ /" command " findfont " (ly:number->string scaling) " output-scale div scalefont } bind def\n")))
85 (define (standard-tex-font? x)
86 (or (equal? (substring x 0 2) "ms")
87 (equal? (substring x 0 2) "cm")))
89 (define (font-load-command font)
90 (let* ((specced-font-name (ly:font-name font))
91 (fontname (if specced-font-name
93 (ly:font-filename font)))
95 (coding-alist (ly:font-encoding-alist font))
96 (input-encoding (assoc-get 'input-name coding-alist))
97 (font-encoding (assoc-get 'output-name coding-alist))
98 (command (ps-font-command font))
99 ;; FIXME -- see (ps-font-command )
100 (plain (ps-font-command font #f))
101 (designsize (ly:font-design-size font))
102 (magnification (* (ly:font-magnification font)))
103 (ops (ly:output-def-lookup paper 'outputscale))
104 (scaling (* ops magnification designsize)))
106 ;; Bluesky pfbs have UPCASE names (sigh.)
108 (if (standard-tex-font? fontname)
109 (set! fontname (string-upcase fontname)))
111 ;; debugging: [output]encoding is broken
112 ;; found so far: coding-alist is empty!
113 (pdebug "font: ~S\n" font)
114 (pdebug "fontname: ~S\n" fontname)
115 (pdebug "input-encoding:~S\n" input-encoding)
116 (pdebug "font-encoding:~S\n" font-encoding)
118 (pdebug "coding-alist:~S\n" coding-alist)
121 (define-font plain fontname scaling)
122 (if (equal? input-encoding font-encoding)
124 (reencode-font fontname input-encoding scaling command)))))
126 (define (font-load-encoding encoding)
127 (let ((filename (get-coding-filename encoding)))
128 (ly:gulp-file (ly:kpathsea-expand-path filename))))
130 (let* ((encoding-list (map (lambda (x)
131 (assoc-get 'input-name
132 (ly:font-encoding-alist x)))
134 (encodings (uniq-list (sort-list (filter string? encoding-list)
137 (pdebug "encodings:~S\n" encodings)
139 (apply string-append (map font-load-encoding encodings))
141 (map (lambda (x) (font-load-command x)) font-list)))))
143 ;; FIXME: duplicated in other output backends
144 ;; FIXME: silly interface name
145 (define (output-variables layout)
146 ;; FIXME: duplicates output-layout's scope-entry->string, mostly
147 (define (value->string val)
149 ((string? val) (string-append "(" val ")"))
150 ((symbol? val) (symbol->string val))
151 ((number? val) (number->string val))
154 (define (output-entry ps-key ly-key)
157 (value->string (ly:output-def-lookup layout ly-key)) " def \n"))
160 "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n"
161 (output-entry "staff-line-thickness" 'linethickness)
162 (output-entry "line-width" 'linewidth)
163 (output-entry "paper-size" 'papersizename)
164 (output-entry "staff-height" 'staffheight) ;junkme.
166 (number->string (ly:output-def-lookup layout 'outputscale))
167 " lily-output-units mul def \n"
168 (output-entry "page-height" 'vsize)
169 (output-entry "page-width" 'hsize)
172 (define (dump-page outputter page page-number page-count landscape?)
173 (ly:outputter-dump-string outputter
176 (number->string page-number) " " (number->string page-count) "\n"
180 "page-width output-scale mul 0 translate 90 rotate\n"
185 "set-ps-scale-to-lily-scale "
187 (ly:outputter-dump-stencil outputter page)
188 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
190 (define (eps-header paper bbox)
191 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
192 "%%Creator: creator time-stamp\n"
194 (string-join (map number->string bbox) " ") "\n"
196 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
201 (define (page-header paper page-count)
202 (string-append "%!PS-Adobe-3.0\n"
203 "%%Creator: creator time-stamp\n"
204 "%%Pages: " (number->string page-count) "\n"
205 "%%PageOrder: Ascend\n"
207 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
210 "%%DocumentPaperSizes: "
211 (ly:output-def-lookup paper 'papersizename) "\n"))
213 (define (preamble paper)
215 (output-variables paper)
216 (ly:gulp-file "music-drawing-routines.ps")
217 (ly:gulp-file "lilyponddefs.ps")
219 (define-fonts paper)))
221 (define-public (output-framework outputter book scopes fields basename)
222 (let* ((paper (ly:paper-book-paper book))
223 (pages (ly:paper-book-pages book))
224 (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))
225 (page-number (1- (ly:output-def-lookup paper 'firstpagenumber)))
226 (page-count (length pages)))
230 (ly:outputter-dump-string outputter x))
232 (page-header paper page-count)
237 (set! page-number (1+ page-number))
238 (dump-page outputter page page-number page-count landscape?))
241 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
243 (define-public (output-preview-framework outputter book scopes fields basename)
244 (let* ((paper (ly:paper-book-paper book))
245 (systems (ly:paper-book-systems book))
246 (scale (ly:output-def-lookup paper 'outputscale ))
247 (titles (take-while ly:paper-system-title? systems))
248 (non-title (find (lambda (x)
249 (not (ly:paper-system-title? x))) systems))
251 (stack-stencils Y DOWN 0.0
252 (map ly:paper-system-stencil
253 (append titles (list non-title)))))
254 (xext (ly:stencil-extent dump-me X))
255 (yext (ly:stencil-extent dump-me Y)))
259 (ly:outputter-dump-string outputter x))
265 (round (* x scale mm-to-bigpoint))))
266 (list (car xext) (car yext)
267 (cdr xext) (cdr yext))))
271 (ly:outputter-dump-string outputter
272 (string-append "start-system { "
273 "set-ps-scale-to-lily-scale "
276 (ly:outputter-dump-stencil outputter dump-me)
277 (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n")))
279 (define-public (convert-to-pdf book name)
280 (let* ((defs (ly:paper-book-paper book))
281 (papersizename (ly:output-def-lookup defs 'papersizename)))
283 (if (equal? name "-")
284 (ly:warn "Can't convert <stdout> to PDF")
285 (postscript->pdf (if (string? papersizename) papersizename "a4")
288 (define-public (convert-to-png book name)
289 (let* ((defs (ly:paper-book-paper book))
290 (resolution (ly:output-def-lookup defs 'pngresolution)))
292 (postscript->png (if (number? resolution) resolution
294 (ly:get-option 'resolution))
297 (define-public (convert-to-dvi book name)
298 (ly:warn "Can not generate DVI via the postscript back-end"))
300 (define-public (convert-to-tex book name)
301 (ly:warn "Can not generate TeX via the postscript back-end"))
303 (define-public (convert-to-ps book name)