1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 1998--2015 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 ;;;; Note: currently misused as testbed for titles with markup, see
20 ;;;; input/test/title-markup.ly
23 ;;;; * %% Papersize in (header ...)
24 ;;;; * text setting, kerning.
25 ;;;; * document output-interface
27 (define-module (scm output-ps)
38 ;;; helper functions, not part of output interface
42 ;; ice-9 format uses a lot of memory
43 ;; using simple-format almost halves lilypond cell usage
46 (if (or (nan? num) (inf? num))
48 (ly:warning (_ "Found infinity or nan in output. Substituting 0.0"))
49 (if (ly:get-option 'strict-infinity-checking)
52 (ly:number->string num)))
54 (define (number-pair->string4 numpair)
55 (ly:format "~4l" numpair))
58 ;;; Lily output interface, PostScript implementation --- cleanup and docme
62 (ly:format "~a (\\~a) show"
63 (ps-font-command font)
64 (ly:inexact->string i 8)))
66 (define (circle radius thick fill)
68 "~a ~4f ~4f draw_circle"
74 (define (start-enclosing-id-node s)
77 (define (end-enclosing-id-node)
80 (define (dashed-line thick on off dx dy phase)
81 (ly:format "~4f ~4f ~4f [ ~4f ~4f ] ~4f draw_dashed_line"
89 (define (draw-line thick x1 y1 x2 y2)
90 (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
94 (define (partial-ellipse x-radius y-radius start-angle end-angle thick connect fill)
95 (ly:format "~a ~a ~4f ~4f ~4f ~4f ~4f draw_partial_ellipse"
96 (if fill "true" "false")
97 (if connect "true" "false")
104 (define (ellipse x-radius y-radius thick fill)
106 "~a ~4f ~4f ~4f draw_ellipse"
110 x-radius y-radius thick))
112 (define (embedded-ps string)
115 (define (glyph-string pango-font
120 (define (glyph-spec w h x y g) ; h not used
121 (let ((prefix (if (string? g) "/" "")))
122 (ly:format "~4f ~4f ~4f ~a~a" w x y prefix g)))
123 (define (emglyph-spec w h x y g) ; h not used
124 (if (and (= x 0) (= y 0))
125 (ly:format "currentpoint ~a moveto ~4f 0 rmoveto" g w)
126 (ly:format "currentpoint ~4f ~4f rmoveto ~a moveto ~4f 0 rmoveto" x y g w)))
129 "/~a /CIDFont findresource ~a output-scale div scalefont setfont\n~a\n~a print_glyphs"
130 postscript-font-name size
131 (string-join (map (lambda (x) (apply glyph-spec x))
132 (reverse w-x-y-named-glyphs)) "\n")
133 (length w-x-y-named-glyphs))
134 (if (and (ly:bigpdfs) (string-startswith postscript-font-name "Emmentaler"))
135 (ly:format "/~a-O ~a output-scale div selectfont\n~a"
136 postscript-font-name size
137 (string-join (map (lambda (x) (apply emglyph-spec x))
138 w-x-y-named-glyphs) "\n"))
139 (ly:format "/~a ~a output-scale div selectfont\n~a\n~a print_glyphs"
140 postscript-font-name size
141 (string-join (map (lambda (x) (apply glyph-spec x))
142 (reverse w-x-y-named-glyphs)) "\n")
143 (length w-x-y-named-glyphs)))))
145 (define (grob-cause offset grob)
146 (if (ly:get-option 'point-and-click)
147 (let* ((cause (ly:grob-property grob 'cause))
148 (music-origin (if (ly:stream-event? cause)
149 (ly:event-property cause 'origin)))
150 (point-and-click (ly:get-option 'point-and-click)))
152 (ly:input-location? music-origin)
153 (cond ((boolean? point-and-click) point-and-click)
154 ((symbol? point-and-click)
155 (ly:in-event-class? cause point-and-click))
156 (else (any (lambda (t)
157 (ly:in-event-class? cause t))
159 (let* ((location (ly:input-file-line-char-column music-origin))
160 (x-ext (ly:grob-extent grob grob X))
161 (y-ext (ly:grob-extent grob grob Y)))
163 (if (and (< 0 (interval-length x-ext))
164 (< 0 (interval-length y-ext)))
165 (ly:format "~4f ~4f ~4f ~4f (textedit://~a:~a:~a:~a) mark_URI\n"
166 (+ (car offset) (car x-ext))
167 (+ (cdr offset) (car y-ext))
168 (+ (car offset) (cdr x-ext))
169 (+ (cdr offset) (cdr y-ext))
171 ;; Backslashes are not valid
172 ;; file URI path separators.
173 (ly:string-percent-encode
174 (ly:string-substitute "\\" "/" (car location)))
178 (1+ (cadddr location)))
183 (define (named-glyph font glyph)
184 (if (and (ly:bigpdfs) (string-startswith (ly:font-file-name font) "emmentaler"))
185 (if (string-endswith (ly:font-file-name font)"-brace")
186 (if (or (string-startswith glyph "brace1") (string-startswith glyph "brace2"))
187 (ly:format "~a ~a" (string-append (ps-font-command font) "-N" ) glyph)
188 (if (or (string-startswith glyph "brace3") (string-startswith glyph "brace4"))
189 (ly:format "~a ~a" (string-append (ps-font-command font) "-S" ) glyph)
190 (ly:format "~a ~a" (string-append (ps-font-command font) "-O" ) glyph)))
191 (if (string-startswith glyph "noteheads")
192 (ly:format "~a ~a" (string-append (ps-font-command font) "-N" ) glyph)
193 (if (or (string-startswith glyph "scripts") (string-startswith glyph "clefs"))
194 (ly:format "~a ~a" (string-append (ps-font-command font) "-S" ) glyph)
195 (ly:format "~a ~a" (string-append (ps-font-command font) "-O" ) glyph))))
196 (ly:format "~a /~a glyphshow" (ps-font-command font) glyph)))
201 (define (placebox x y s)
202 (if (not (string-null? s))
203 (ly:format "~4f ~4f moveto ~a\n" x y s)
206 (define (polygon points blot-diameter filled?)
207 (ly:format "~a ~4l ~a ~4f draw_polygon"
208 (if filled? "true" "false")
210 (- (/ (length points) 2) 1)
213 (define (round-filled-box left right bottom top blotdiam)
214 (let* ((halfblot (/ blotdiam 2))
215 (x (- halfblot left))
216 (width (- right (+ halfblot x)))
217 (y (- halfblot bottom))
218 (height (- top (+ halfblot y))))
219 (ly:format "~4l draw_round_box"
220 (list width height x y blotdiam))))
222 ;; save current color on stack and set new color
223 (define (setcolor r g b)
224 (ly:format "gsave ~4l setrgbcolor\n"
227 ;; restore color from stack
228 (define (resetcolor) "grestore\n")
230 ;; rotation around given point
231 (define (setrotation ang x y)
232 (ly:format "gsave ~4l translate ~a rotate ~4l translate\n"
235 (list (* -1 x) (* -1 y))))
237 (define (resetrotation ang x y)
243 (define (url-link url x y)
244 (ly:format "~a ~a currentpoint vector_add ~a ~a currentpoint vector_add (~a) mark_URI"
251 (define (page-link page-no x y)
252 (if (number? page-no)
253 (ly:format "~a ~a currentpoint vector_add ~a ~a currentpoint vector_add ~a mark_page_link"
261 (define* (path thickness exps #:optional (cap 'round) (join 'round) (fill? #f))
262 (define (convert-path-exps exps)
269 ((memq head '(rmoveto rlineto lineto moveto)) 2)
270 ((memq head '(rcurveto curveto)) 6)
271 ((eq? head 'closepath) 0)
273 (args (take rest arity))
276 ;; WARNING: this is a vulnerability: a user can output arbitrary PS code here.
281 (convert-path-exps (drop rest arity))))
284 (let ((cap-numeric (case cap ((butt) 0) ((round) 1) ((square) 2)
286 (ly:warning (_ "unknown line-cap-style: ~S")
287 (symbol->string cap))
289 (join-numeric (case join ((miter) 0) ((round) 1) ((bevel) 2)
291 (ly:warning (_ "unknown line-join-style: ~S")
292 (symbol->string join))
295 "gsave currentpoint translate
296 ~a setlinecap ~a setlinejoin ~a setlinewidth
301 (convert-path-exps exps)
302 ;; print outline contour only if there is no fill or if
303 ;; contour is explicitly requested with a thickness > 0
304 (cond ((not fill?) "stroke")
305 ((positive? thickness) "gsave stroke grestore fill")
309 (define (setscale x y)
310 (ly:format "gsave ~4l scale\n"