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 mm-to-bigpoint
20 (define-public (ps-font-command font . override-coding)
21 (let* ((name (ly:font-filename font))
22 (magnify (ly:font-magnification font))
23 (coding-alist (ly:font-encoding-alist font))
24 (input-encoding (assoc-get 'input-name coding-alist))
25 (font-encoding (assoc-get 'output-name coding-alist))
26 (coding-command (if (null? override-coding)
27 (if (equal? input-encoding font-encoding)
29 (car override-coding))))
31 ;; FIXME: now feta stuff has feta* input-encoding (again?)
32 ;;(format (current-error-port) "FONT: ~S, ~S\n" name font-encoding)
33 ;;(format (current-error-port) "INPUT: ~S\n" input-encoding)
34 (if (and coding-command
36 (equal? (substring coding-command 0 4) "feta")
37 (equal? (substring coding-command 0 8) "parmesan")
40 (set! coding-command #f))
43 "magfont" (string-encode-integer (hashq name 1000000))
44 "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))
45 (if (not coding-command) "" (string-append "e" coding-command)))))
47 (define (tex-font? fontname)
49 (equal? (substring fontname 0 2) "cm")
50 (equal? (substring fontname 0 2) "ec")))
52 (define (load-fonts bookpaper)
53 (let* ((fonts (ly:bookpaper-fonts bookpaper))
54 (font-names (uniq-list (sort (map ly:font-filename fonts) string<?)))
59 ((aname (string-append x ".pfa"))
60 (apath (ly:kpathsea-expand-path aname))
62 (bpath (if (not apath)
63 (ly:kpathsea-expand-path (string-append x ".pfb"))
68 (apath (ly:gulp-file apath))
69 (bpath (ly:pfb->pfa bpath))
71 (ly:warn "Can't find PFA font ~S" x)
73 (filter string? font-names))))
75 (string-join pfas "\n")))
77 (define (define-fonts bookpaper)
79 (define font-list (ly:bookpaper-fonts bookpaper))
80 (define (define-font command fontname scaling)
82 "/" command " { /" fontname " findfont "
83 (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
85 (define (reencode-font plain encoding command)
86 (let ((coding-vector (get-coding-command encoding)))
88 plain " " coding-vector " /" command " reencode-font\n"
89 "/" command "{ /" command " findfont 1 scalefont } bind def\n")))
91 (define (guess-ps-fontname basename)
93 "We do not have the FontName, try to guess is from basename."
97 ;; FIXME: we need proper Fontmap for the bluesky CM*, EC* fonts.
98 ;; Only the fonts that we trace in mf/ are in our own FontMap.
99 (string-append basename ".pfb"))
100 (else (string-append basename ".pfa"))))
102 (define (font-load-command font)
103 (let* ((specced-font-name (ly:font-name font))
104 (fontname (if specced-font-name
106 (guess-ps-fontname (ly:font-filename font))))
108 (coding-alist (ly:font-encoding-alist font))
109 (input-encoding (assoc-get 'input-name coding-alist))
110 (font-encoding (assoc-get 'output-name coding-alist))
111 (command (ps-font-command font))
112 ;; FIXME -- see (ps-font-command )
113 (plain (ps-font-command font #f))
114 (designsize (ly:font-design-size font))
115 (magnification (* (ly:font-magnification font)))
116 (ops (ly:output-def-lookup bookpaper 'outputscale))
117 (scaling (* ops magnification designsize)))
120 (define-font plain fontname scaling)
121 (if (or (equal? input-encoding font-encoding)
123 (equal? font-encoding "fetaBraces")
124 (equal? font-encoding "fetaNumber")
125 (equal? font-encoding "fetaMusic")
126 (equal? font-encoding "parmesanMusic"))
128 (reencode-font plain input-encoding command)))))
130 (define (font-load-encoding encoding)
131 (let ((filename (get-coding-filename encoding)))
132 (ly:gulp-file (ly:kpathsea-expand-path filename))))
134 (let* ((encoding-list (map (lambda (x)
135 (assoc-get 'input-name
136 (ly:font-encoding-alist x)))
138 (encodings (uniq-list (sort-list (filter string? encoding-list)
142 (apply string-append (map font-load-encoding encodings))
144 (map (lambda (x) (font-load-command x)) font-list)))))
146 ;; FIXME: duplicated in other output backends
147 ;; FIXME: silly interface name
148 (define (output-variables paper)
149 ;; FIXME: duplicates output-paper's scope-entry->string, mostly
150 (define (value->string val)
152 ((string? val) (string-append "(" val ")"))
153 ((symbol? val) (symbol->string val))
154 ((number? val) (number->string val))
157 (define (output-entry ps-key ly-key)
160 (value->string (ly:output-def-lookup paper ly-key)) " def \n"))
163 "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n"
164 (output-entry "staff-line-thickness" 'linethickness)
165 (output-entry "line-width" 'linewidth)
166 (output-entry "paper-size" 'papersize)
167 (output-entry "staff-height" 'staffheight) ;junkme.
169 (number->string (ly:output-def-lookup paper 'outputscale))
170 " lily-output-units mul def \n"))
172 (define (dump-page outputter page page-number page-count)
173 (ly:outputter-dump-string outputter
176 (number->string page-number) " " (number->string page-count) "\n"
177 "0 0 start-system { "
178 "set-ps-scale-to-lily-scale "
180 (ly:outputter-dump-stencil outputter page)
181 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
183 (define (eps-header bookpaper bbox)
184 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
185 "%%Creator: creator time-stamp\n"
186 "%%BoundingBox: " (string-join (map number->string bbox) " ") "\n"
189 (define (page-header bookpaper page-count)
190 (string-append "%!PS-Adobe-3.0\n"
191 "%%Creator: creator time-stamp\n"
192 "%%Pages: " (number->string page-count) "\n"
193 "%%PageOrder: Ascend\n"
194 "%%DocumentPaperSizes: " (ly:output-def-lookup bookpaper 'papersize) "\n"))
196 (define (preamble bookpaper)
198 (output-variables bookpaper)
199 (ly:gulp-file "music-drawing-routines.ps")
200 (ly:gulp-file "lilyponddefs.ps")
201 (load-fonts bookpaper)
202 (define-fonts bookpaper)))
204 (define-public (output-framework outputter book scopes fields basename)
205 (let* ((bookpaper (ly:paper-book-book-paper book))
206 (pages (ly:paper-book-pages book))
208 (page-count (length pages)))
211 (ly:outputter-dump-string outputter x))
213 (page-header bookpaper page-count)
214 (preamble bookpaper)))
218 (set! page-number (1+ page-number))
219 (dump-page outputter page page-number page-count))
221 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
223 (define-public (output-preview-framework outputter book scopes fields basename)
224 (let* ((bookpaper (ly:paper-book-book-paper book))
225 (systems (ly:paper-book-lines book))
226 (scale (ly:output-def-lookup bookpaper 'outputscale ))
227 (titles (take-while ly:paper-system-title? systems))
228 (non-title (find (lambda (x) (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))
239 (ly:outputter-dump-string outputter x))
241 (eps-header bookpaper
245 (round (* x scale mm-to-bigpoint))))
246 (list (car xext) (car yext)
247 (cdr xext) (cdr yext))))
248 (preamble bookpaper)))
251 (ly:outputter-dump-string outputter
252 (string-append "0 0 start-system { "
253 "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 (postscript->pdf (if (string? size) size "a4")
266 (define-public (convert-to-png book name)
268 ((defs (ly:paper-book-book-paper book))
269 (resolution (ly:output-def-lookup defs 'pngresolution)))
271 (postscript->png (if (number? resolution) resolution 90)
274 (define-public (convert-to-dvi book name)
275 (ly:warn "Can not generate DVI via the postscript back-end"))
277 (define-public (convert-to-tex book name)
278 (ly:warn "Can not generate TeX via the postscript back-end"))
280 (define-public (convert-to-ps book name)