1 ;;;; tex.scm -- implement Scheme output routines for TeX
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
6 ;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 ;; (debug-enable 'backtrace)
11 ;; The public interface is tight.
12 ;; It has to be, because user-code is evalled with this module.
14 ;; ***It should also be clean, well defined, documented and reviewed***
16 ;; To be reasonably safe, you probably do not want to use the TeX
17 ;; backend anyway, but rather the PostScript backend. You may want
18 ;; to run gs in a uml sandbox too.
21 (define-module (scm output-tex)
24 ;; JUNK this -- see lily.scm: ly:all-output-backend-commands
50 (use-modules (ice-9 regex)
66 (string-append "\\" (tex-font-command font)
67 "\\char" (ly:inexact->string i 10) " "))
72 (define (url-link url x y)
79 (define (dot x y radius)
80 (embedded-ps (list 'dot x y radius)))
83 (define (embedded-ps string)
84 (embedded-ps (list 'embedded-ps string)))
86 (define (white-dot x y radius)
87 (embedded-ps (list 'white-dot x y radius)))
89 (define (beam width slope thick blot)
90 (embedded-ps (list 'beam width slope thick blot)))
92 (define (bracket arch_angle arch_width arch_height height arch_thick thick)
93 (embedded-ps (list 'bracket arch_angle arch_width arch_height height arch_thick thick)))
95 (define (dashed-slur thick on off lst)
96 (embedded-ps (list 'dashed-slur thick on off `(quote ,lst))))
98 (define (named-glyph font name)
99 (let* ((info (ly:otf-font-glyph-info font name))
100 (subfont (assoc-get 'subfont info))
101 (subidx (assoc-get 'subfont-index info)))
103 ;;(stderr "INFO: ~S\n" info)
104 ;;(stderr "FONT: ~S\n" font)
105 (if (and subfont subidx)
106 (string-append "\\" (tex-font-command-raw
108 (ly:font-magnification font))
109 "\\char" (number->string subidx))
112 (ly:warn "Can't find ~a in ~a" name font)
115 (define (dashed-line thick on off dx dy)
116 (embedded-ps (list 'dashed-line thick on off dx dy)))
118 (define (zigzag-line centre? zzw zzh thick dx dy)
119 (embedded-ps (list 'zigzag-line centre? zzw zzh thick dx dy)))
121 (define (ez-ball c lst b)
122 (embedded-ps (list 'ez-ball c lst b)))
124 (define (embedded-ps expr)
126 (with-output-to-string
127 (lambda () (ps-output-expression expr (current-output-port))))))
128 (string-append "\\embeddedps{" ps-string "}")))
130 (define (repeat-slash w a t)
131 (embedded-ps (list 'repeat-slash w a t)))
133 (define (number->dim x)
135 ;;ugh ly:* in backend needs compatibility func for standalone output
136 (ly:number->string x) " \\outputscale "))
138 (define (placebox x y s)
140 "\\lyitem{" (ly:number->string x) "}{" (ly:number->string y) "}{" s "}%\n"))
142 (define (bezier-sandwich lst thick)
143 (embedded-ps (list 'bezier-sandwich `(quote ,lst) thick)))
145 ;; WTF is this in every backend?
146 (define (horizontal-line x1 x2 th)
147 (filledbox (- x1) (- x2 x1) (* .5 th) (* .5 th)))
149 (define (filledbox breapth width depth height)
150 (if (and #f (defined? 'ps-testing))
152 (string-append (ly:numbers->string (list breapth width depth height))
154 (string-append "\\lyvrule{"
155 (ly:number->string (- breapth)) "}{"
156 (ly:number->string (+ breapth width)) "}{"
157 (ly:number->string depth) "}{"
158 (ly:number->string height) "}")))
160 (define (round-filled-box x y width height blotdiam)
161 (embedded-ps (list 'round-filled-box x y width height blotdiam)))
163 (define (text font s)
165 "\\hbox{\\~a{}~a}" (tex-font-command font)
166 (sanitize-tex-string s)))
168 (define (white-text scale s)
169 (embedded-ps (list 'white-text scale s)))
171 (define (polygon points blotdiameter)
172 (embedded-ps (list 'polygon `(quote ,points) blotdiameter)))
174 (define (draw-line thick fx fy tx ty)
175 (embedded-ps (list 'draw-line thick fx fy tx ty)))
177 ;; no-origin not yet supported by Xdvi
178 (define (no-origin) "")
180 (define (grob-cause offset grob)
181 (if (procedure? point-and-click)
182 (let* ((cause (ly:grob-property grob 'cause))
183 (music-origin (if (ly:music? cause)
184 (ly:music-property cause 'origin)))
185 (location (if (ly:input-location? music-origin)
186 (ly:input-file-line-column music-origin))))
189 (string-append "\\special{src:"
190 (apply point-and-click location) "}")