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))))
32 "magfont" (string-encode-integer (hashq name 1000000))
33 "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))
34 (if (not coding-command) "" (string-append "e" coding-command)))))
36 (define (tex-font? fontname)
38 (equal? (substring fontname 0 2) "cm")
39 (equal? (substring fontname 0 2) "ec")))
41 (define (load-fonts bookpaper)
42 (let* ((fonts (ly:bookpaper-fonts bookpaper))
43 (font-names (uniq-list (sort (map ly:font-filename fonts) string<?)))
48 ((aname (string-append x ".pfa"))
49 (apath (ly:kpathsea-expand-path aname))
51 (bpath (if (not apath)
52 (ly:kpathsea-expand-path (string-append x ".pfb"))
57 (apath (ly:gulp-file apath))
58 (bpath (ly:pfb->pfa bpath))
60 (ly:warn "Can't find PFA font ~S" x)
62 (filter string? font-names))))
64 (string-join pfas "\n")))
66 (define (define-fonts bookpaper)
68 (define font-list (ly:bookpaper-fonts bookpaper))
69 (define (define-font command fontname scaling)
71 "/" command " { /" fontname " findfont "
72 (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
74 (define (reencode-font plain encoding command)
75 (let ((coding-vector (get-coding-command encoding)))
77 plain " " coding-vector " /" command " reencode-font\n"
78 "/" command "{ /" command " findfont 1 scalefont } bind def\n")))
81 (define (font-load-command font)
82 (let* ((specced-font-name (ly:font-name font))
83 (fontname (if specced-font-name
85 (ly:font-filename font)))
87 (coding-alist (ly:font-encoding-alist font))
88 (input-encoding (assoc-get 'input-name coding-alist))
89 (font-encoding (assoc-get 'output-name coding-alist))
90 (command (ps-font-command font))
91 ;; FIXME -- see (ps-font-command )
92 (plain (ps-font-command font #f))
93 (designsize (ly:font-design-size font))
94 (magnification (* (ly:font-magnification font)))
95 (ops (ly:output-def-lookup bookpaper 'outputscale))
96 (scaling (* ops magnification designsize)))
99 (define-font plain fontname scaling)
100 (if (not (equal? input-encoding font-encoding))
102 (reencode-font plain input-encoding command)))))
104 (define (font-load-encoding encoding)
105 (let ((filename (get-coding-filename encoding)))
106 (ly:gulp-file (ly:kpathsea-expand-path filename))))
108 (let* ((encoding-list (map (lambda (x)
109 (assoc-get 'input-name
110 (ly:font-encoding-alist x)))
112 (encodings (uniq-list (sort-list (filter string? encoding-list)
116 (apply string-append (map font-load-encoding encodings))
118 (map (lambda (x) (font-load-command x)) font-list)))))
120 ;; FIXME: duplicated in other output backends
121 ;; FIXME: silly interface name
122 (define (output-variables paper)
123 ;; FIXME: duplicates output-paper's scope-entry->string, mostly
124 (define (value->string val)
126 ((string? val) (string-append "(" val ")"))
127 ((symbol? val) (symbol->string val))
128 ((number? val) (number->string val))
131 (define (output-entry ps-key ly-key)
134 (value->string (ly:output-def-lookup paper ly-key)) " def \n"))
137 "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n"
138 (output-entry "staff-line-thickness" 'linethickness)
139 (output-entry "line-width" 'linewidth)
140 (output-entry "paper-size" 'papersize)
141 (output-entry "staff-height" 'staffheight) ;junkme.
143 (number->string (ly:output-def-lookup paper 'outputscale))
144 " lily-output-units mul def \n"))
146 (define (dump-page outputter page page-number page-count)
147 (ly:outputter-dump-string outputter
150 (number->string page-number) " " (number->string page-count) "\n"
151 "0 0 start-system { "
152 "set-ps-scale-to-lily-scale "
154 (ly:outputter-dump-stencil outputter page)
155 (ly:outputter-dump-string outputter "} stop-system \nshowpage\n"))
157 (define (eps-header bookpaper bbox)
158 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
159 "%%Creator: creator time-stamp\n"
160 "%%BoundingBox: " (string-join (map number->string bbox) " ") "\n"
163 (define (page-header bookpaper page-count)
164 (string-append "%!PS-Adobe-3.0\n"
165 "%%Creator: creator time-stamp\n"
166 "%%Pages: " (number->string page-count) "\n"
167 "%%PageOrder: Ascend\n"
168 "%%DocumentPaperSizes: " (ly:output-def-lookup bookpaper 'papersize) "\n"))
170 (define (preamble bookpaper)
172 (output-variables bookpaper)
173 (ly:gulp-file "music-drawing-routines.ps")
174 (ly:gulp-file "lilyponddefs.ps")
175 (load-fonts bookpaper)
176 (define-fonts bookpaper)))
178 (define-public (output-framework outputter book scopes fields basename)
179 (let* ((bookpaper (ly:paper-book-book-paper book))
180 (pages (ly:paper-book-pages book))
182 (page-count (length pages)))
185 (ly:outputter-dump-string outputter x))
187 (page-header bookpaper page-count)
188 (preamble bookpaper)))
192 (set! page-number (1+ page-number))
193 (dump-page outputter page page-number page-count))
195 (ly:outputter-dump-string outputter "%%Trailer\n%%EOF\n")))
197 (define-public (output-preview-framework outputter book scopes fields basename)
198 (let* ((bookpaper (ly:paper-book-book-paper book))
199 (systems (ly:paper-book-lines book))
200 (scale (ly:output-def-lookup bookpaper 'outputscale ))
201 (titles (take-while ly:paper-system-title? systems))
202 (non-title (find (lambda (x) (not (ly:paper-system-title? x))) systems))
204 (stack-stencils Y DOWN 0.0
205 (map ly:paper-system-stencil
206 (append titles (list non-title)))))
207 (xext (ly:stencil-extent dump-me X))
208 (yext (ly:stencil-extent dump-me Y)))
212 (ly:outputter-dump-string outputter x))
214 (eps-header bookpaper
218 (round (* x scale mm-to-bigpoint))))
219 (list (car xext) (car yext)
220 (cdr xext) (cdr yext))))
221 (preamble bookpaper)))
224 (ly:outputter-dump-string outputter
225 (string-append "0 0 start-system { "
226 "set-ps-scale-to-lily-scale "
228 (ly:outputter-dump-stencil outputter dump-me)
229 (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n")))
231 (define-public (convert-to-pdf book name)
233 ((defs (ly:paper-book-book-paper book))
234 (size (ly:output-def-lookup defs 'papersize)))
236 (postscript->pdf (if (string? size) size "a4")
239 (define-public (convert-to-png book name)
241 ((defs (ly:paper-book-book-paper book))
242 (resolution (ly:output-def-lookup defs 'pngresolution)))
244 (postscript->png (if (number? resolution) resolution 90)
247 (define-public (convert-to-dvi book name)
248 (ly:warn "Can not generate DVI via the postscript back-end"))
250 (define-public (convert-to-tex book name)
251 (ly:warn "Can not generate TeX via the postscript back-end"))
253 (define-public (convert-to-ps book name)