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 bookpaper)
49 (let* ((fonts (ly:bookpaper-fonts bookpaper))
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 bookpaper)
73 (define font-list (ly:bookpaper-fonts bookpaper))
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 plain encoding command)
80 (let ((coding-vector (get-coding-command encoding)))
82 plain " " coding-vector " /" command " reencode-font\n"
83 "/" command "{ /" command " findfont 1 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 bookpaper '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 plain input-encoding 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 paper)
146 ;; FIXME: duplicates output-paper'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 paper 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" 'papersize)
164 (output-entry "staff-height" 'staffheight) ;junkme.
166 (number->string (ly:output-def-lookup paper 'outputscale))
167 " lily-output-units mul def \n"))
169 (define (dump-page outputter page page-number page-count)
170 (ly:outputter-dump-string outputter
173 (number->string page-number) " " (number->string page-count) "\n"
174 "0 0 start-system { "
175 "set-ps-scale-to-lily-scale "
177 (ly:outputter-dump-stencil outputter page)
178 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
180 (define (eps-header bookpaper bbox)
181 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
182 "%%Creator: creator time-stamp\n"
184 (string-join (map number->string bbox) " ") "\n"
187 (define (page-header bookpaper page-count)
188 (string-append "%!PS-Adobe-3.0\n"
189 "%%Creator: creator time-stamp\n"
190 "%%Pages: " (number->string page-count) "\n"
191 "%%PageOrder: Ascend\n"
192 "%%DocumentPaperSizes: "
193 (ly:output-def-lookup bookpaper 'papersize) "\n"))
195 (define (preamble bookpaper)
197 (output-variables bookpaper)
198 (ly:gulp-file "music-drawing-routines.ps")
199 (ly:gulp-file "lilyponddefs.ps")
200 (load-fonts bookpaper)
201 (define-fonts bookpaper)))
203 (define-public (output-framework outputter book scopes fields basename)
204 (let* ((bookpaper (ly:paper-book-book-paper book))
205 (pages (ly:paper-book-pages book))
206 (page-number (1- (ly:output-def-lookup bookpaper 'firstpagenumber)))
207 (page-count (length pages)))
210 (ly:outputter-dump-string outputter x))
212 (page-header bookpaper page-count)
213 (preamble bookpaper)))
217 (set! page-number (1+ page-number))
218 (dump-page outputter page page-number page-count))
220 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
222 (define-public (output-preview-framework outputter book scopes fields basename)
223 (let* ((bookpaper (ly:paper-book-book-paper book))
224 (systems (ly:paper-book-systems book))
225 (scale (ly:output-def-lookup bookpaper 'outputscale ))
226 (titles (take-while ly:paper-system-title? systems))
227 (non-title (find (lambda (x)
228 (not (ly:paper-system-title? x))) systems))
230 (stack-stencils Y DOWN 0.0
231 (map ly:paper-system-stencil
232 (append titles (list non-title)))))
233 (xext (ly:stencil-extent dump-me X))
234 (yext (ly:stencil-extent dump-me Y)))
238 (ly:outputter-dump-string outputter x))
240 (eps-header bookpaper
244 (round (* x scale mm-to-bigpoint))))
245 (list (car xext) (car yext)
246 (cdr xext) (cdr yext))))
247 (preamble bookpaper)))
250 (ly:outputter-dump-string outputter
251 (string-append "0 0 start-system { "
252 "set-ps-scale-to-lily-scale "
255 (ly:outputter-dump-stencil outputter dump-me)
256 (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n")))
258 (define-public (convert-to-pdf book name)
260 ((defs (ly:paper-book-book-paper book))
261 (size (ly:output-def-lookup defs 'papersize)))
263 (if (equal? name "-")
264 (ly:warn "Can't convert <stdout> to PDF")
265 (postscript->pdf (if (string? size) size "a4")
268 (define-public (convert-to-png book name)
270 ((defs (ly:paper-book-book-paper book))
271 (resolution (ly:output-def-lookup defs 'pngresolution)))
273 (postscript->png (if (number? resolution) resolution 90)
276 (define-public (convert-to-dvi book name)
277 (ly:warn "Can not generate DVI via the postscript back-end"))
279 (define-public (convert-to-tex book name)
280 (ly:warn "Can not generate TeX via the postscript back-end"))
282 (define-public (convert-to-ps book name)