1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 2005--2012 Jan Nieuwenhuizen <janneke@gnu.org>
4 ;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
6 ;;;; LilyPond is free software: you can redistribute it and/or modify
7 ;;;; it under the terms of the GNU General Public License as published by
8 ;;;; the Free Software Foundation, either version 3 of the License, or
9 ;;;; (at your option) any later version.
11 ;;;; LilyPond is distributed in the hope that it will be useful,
12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;;; GNU General Public License for more details.
16 ;;;; You should have received a copy of the GNU General Public License
17 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
19 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
22 (use-modules (scm ps-to-png)
26 (define-public (ly:system command)
27 (ly:debug (_ "Invoking `~a'...") (string-join command))
28 (let ((status (apply ly:spawn command)))
31 (ly:warning (_ "`~a' failed (~a)\n") command status)
32 ;; hmmm. what's the best failure option?
33 (throw 'ly-file-failed)))))
35 (define-public (sanitize-command-option str)
36 "Kill dubious shell quoting."
40 (regexp-substitute/global #f "[^-_ 0-9,.a-zA-Z'\"\\]" str 'pre 'post)
43 (define-public (search-executable names)
44 (define (helper path lst)
47 (if (search-path path (car lst)) (car lst)
48 (helper path (cdr lst)))))
50 (let ((path (parse-path (getenv "PATH"))))
53 (define-public (search-gs)
55 ;; must be sure that we don't catch stuff from old GUBs.
56 (search-executable '("gs")))
58 (define-public (postscript->pdf paper-width paper-height name)
59 (let* ((pdf-name (string-append
60 (dir-basename name ".ps" ".eps")
62 (is-eps (string-match "\\.eps$" name))
63 (*unspecified* (if #f #f))
65 (remove (lambda (x) (eq? x *unspecified*))
68 (if (ly:get-option 'verbose) *unspecified* "-q")
69 (if (or (ly:get-option 'gs-load-fonts)
70 (ly:get-option 'gs-load-lily-fonts)
71 (eq? PLATFORM 'windows))
77 (ly:format "-dDEVICEWIDTHPOINTS=~$" paper-width))
80 (ly:format "-dDEVICEHEIGHTPOINTS=~$" paper-height))
81 "-dCompatibilityLevel=1.4"
86 (string-append "-sOutputFile="
88 (string-split pdf-name #\%)
91 (string-append "-f" name)))))
93 (ly:message (_ "Converting to `~a'...\n") pdf-name)
96 (define-public (postscript->png resolution paper-width paper-height name)
97 (let* ((verbose (ly:get-option 'verbose))
100 ;; Do not try to guess the name of the png file,
101 ;; GS produces PNG files like BASE-page%d.png.
102 (ly:message (_ "Converting to ~a...") "PNG")
104 #:resolution resolution
105 #:page-width paper-width
106 #:page-height paper-height
107 #:rename-page-1 rename-page-1
109 #:anti-alias-factor (ly:get-option 'anti-alias-factor)
110 #:pixmap-format (ly:get-option 'pixmap-format))
113 (define-public (postprocess-output paper-book module filename formats)
114 (let* ((completed (completize-formats formats))
115 (base (dir-basename filename ".ps" ".eps"))
116 (intermediate (remove (lambda (x) (member x formats)) completed)))
117 (for-each (lambda (f)
118 ((eval (string->symbol (format #f "convert-to-~a" f))
119 module) paper-book filename)) completed)
120 (if (ly:get-option 'delete-intermediate-files)
121 (for-each (lambda (f)
122 (if (file-exists? f) (delete-file f)))
123 (map (lambda (x) (string-append base "." x)) intermediate)))))
125 (define-public (completize-formats formats)
126 (define new-fmts '())
127 (if (member "png" formats)
128 (set! formats (cons "ps" formats)))
129 (if (member "pdf" formats)
130 (set! formats (cons "ps" formats)))
131 (for-each (lambda (x)
132 (if (member x formats) (set! new-fmts (cons x new-fmts))))
134 (uniq-list (reverse new-fmts)))
136 (define (header-to-file file-name key value)
137 (set! key (symbol->string key))
138 (if (not (equal? "-" file-name))
139 (set! file-name (string-append file-name "." key)))
140 (ly:message (_ "Writing header field `~a' to `~a'...")
142 (if (equal? "-" file-name) "<stdout>" file-name))
143 (if (equal? file-name "-")
145 (let ((port (open-file file-name "w")))
152 (define-public (output-scopes scopes fields basename)
153 (define (output-scope scope)
157 (let ((val (if (variable-bound? var) (variable-ref var) "")))
158 (if (and (memq sym fields) (string? val))
159 (header-to-file basename sym val))
162 (string-concatenate (map output-scope scopes)))
164 (define-public (relevant-book-systems book)
165 (let ((systems (ly:paper-book-systems book)))
167 (if (and (not (ly:get-option 'include-book-title-preview))
169 (ly:prob-property (car systems) 'is-book-title #f))
173 (define-public (relevant-dump-systems systems)
174 (let ((to-dump-systems '()))
177 (if (or (paper-system-title? sys)
178 (not (pair? to-dump-systems))
179 (paper-system-title? (car to-dump-systems)))
180 (set! to-dump-systems (cons sys to-dump-systems))))
184 (define missing-stencil-list '())
186 (define-public (backend-testing output-module)
187 (define (missing-stencil-expression name)
189 (ly:warning (_ "missing stencil expression `~S'") name)
192 (for-each (lambda (x)
193 (if (not (module-defined? output-module x))
195 (module-define! output-module x
196 (lambda* (#:optional y . z)
197 (missing-stencil-expression x)))
198 (set! missing-stencil-list (cons x missing-stencil-list)))))
199 (ly:all-stencil-commands)))
201 (define-public (remove-stencil-warnings output-module)
204 (module-remove! output-module x))
205 missing-stencil-list))
207 (define (filter-out pred? lst)
208 (filter (lambda (x) (not (pred? x))) lst))
210 (define-public (font-name-split font-name)
211 "Return @code{(FONT-NAME . DESIGN-SIZE)} from @var{font-name} string
213 (let ((match (regexp-exec (make-regexp "(.*)-([0-9]*)") font-name)))
214 (if (regexp-match? match)
215 (cons (match:substring match 1) (match:substring match 2))
216 (cons font-name-designsize #f))))
218 ;; Example of a pango-physical-font
219 ;; ("Emmentaler-11" "/home/janneke/vc/lilypond/out/share/lilypond/current/fonts/otf/emmentaler-11.otf" 0)
220 (define-public (pango-pf-font-name pango-pf)
221 "Return the font-name of the pango physical font @var{pango-pf}."
222 (list-ref pango-pf 0))
223 (define-public (pango-pf-file-name pango-pf)
224 "Return the file-name of the pango physical font @var{pango-pf}."
225 (list-ref pango-pf 1))
226 (define-public (pango-pf-fontindex pango-pf)
227 "Return the fontindex of the pango physical font @var{pango-pf}."
228 (list-ref pango-pf 2))
230 (define (pango-font-name pango-font)
231 (let ((pf-fonts (ly:pango-font-physical-fonts pango-font)))
233 (pango-pf-font-name (car pf-fonts))
236 (define-public (define-fonts paper define-font define-pango-pf)
237 "Return a string of all fonts used in @var{paper}, invoking the functions
238 @var{define-font} and @var{define-pango-pf} for producing the actual font
241 (let* ((font-list (ly:paper-fonts paper))
242 (pango-fonts (filter ly:pango-font? font-list))
243 (other-fonts (filter-out ly:pango-font? font-list))
244 (other-font-names (map ly:font-name other-fonts))
246 (filter-out (lambda (x)
247 (member (pango-font-name x) other-font-names))
250 (define (font-load-command font)
251 (let* ((font-name (ly:font-name font))
252 (designsize (ly:font-design-size font))
253 (magnification (* (ly:font-magnification font)))
254 (ops (ly:output-def-lookup paper 'output-scale))
255 (scaling (* ops magnification designsize)))
256 (if (equal? font-name "unknown")
257 (display (list font font-name)))
258 (define-font font font-name scaling)))
260 (define (pango-font-load-command pango-font)
261 (let* ((pf-fonts (ly:pango-font-physical-fonts pango-font))
262 (pango-pf (if (pair? pf-fonts) (car pf-fonts) '("" "" 0)))
263 (font-name (pango-pf-font-name pango-pf))
264 (scaling (ly:output-def-lookup paper 'output-scale)))
265 (if (equal? font-name "unknown")
266 (display (list pango-font font-name)))
267 (define-pango-pf pango-pf font-name scaling)))
270 (string-concatenate (map font-load-command other-fonts))
271 (string-concatenate (map pango-font-load-command pango-only-fonts)))))