1 ;;;; tex.scm -- implement Scheme output routines for TeX
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2004 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) " "))
77 (define (dot x y radius)
78 (embedded-ps (list 'dot x y radius)))
81 (define (embedded-ps string)
82 (embedded-ps (list 'embedded-ps string)))
84 (define (white-dot x y radius)
85 (embedded-ps (list 'white-dot x y radius)))
87 (define (beam width slope thick blot)
88 (embedded-ps (list 'beam width slope thick blot)))
90 (define (bracket arch_angle arch_width arch_height height arch_thick thick)
91 (embedded-ps (list 'bracket arch_angle arch_width arch_height height arch_thick thick)))
93 (define (dashed-slur thick on off lst)
94 (embedded-ps (list 'dashed-slur thick on off `(quote ,lst))))
96 (define (named-glyph font name)
97 (let* ((info (ly:otf-font-glyph-info font name))
98 (subfont (assoc-get 'subfont info))
99 (subidx (assoc-get 'subfont-index info)))
101 ;;(stderr "INFO: ~S\n" info)
102 ;;(stderr "FONT: ~S\n" font)
103 (if (and subfont subidx)
104 (string-append "\\" (tex-font-command-raw
106 (ly:font-magnification font))
107 "\\char" (number->string subidx))
110 (ly:warn "Can't find ~a in ~a" name font)
113 (define (dashed-line thick on off dx dy)
114 (embedded-ps (list 'dashed-line thick on off dx dy)))
116 (define (zigzag-line centre? zzw zzh thick dx dy)
117 (embedded-ps (list 'zigzag-line centre? zzw zzh thick dx dy)))
119 (define (ez-ball c lst b)
120 (embedded-ps (list 'ez-ball c lst b)))
122 (define (embedded-ps expr)
124 (with-output-to-string
125 (lambda () (ps-output-expression expr (current-output-port))))))
126 (string-append "\\embeddedps{" ps-string "}")))
128 (define (repeat-slash w a t)
129 (embedded-ps (list 'repeat-slash w a t)))
131 (define (number->dim x)
133 ;;ugh ly:* in backend needs compatibility func for standalone output
134 (ly:number->string x) " \\outputscale "))
136 (define (placebox x y s)
138 "\\lyitem{" (ly:number->string x) "}{" (ly:number->string y) "}{" s "}%\n"))
140 (define (bezier-sandwich lst thick)
141 (embedded-ps (list 'bezier-sandwich `(quote ,lst) thick)))
143 ;; WTF is this in every backend?
144 (define (horizontal-line x1 x2 th)
145 (filledbox (- x1) (- x2 x1) (* .5 th) (* .5 th)))
147 (define (filledbox breapth width depth height)
148 (if (and #f (defined? 'ps-testing))
150 (string-append (ly:numbers->string (list breapth width depth height))
152 (string-append "\\lyvrule{"
153 (ly:number->string (- breapth)) "}{"
154 (ly:number->string (+ breapth width)) "}{"
155 (ly:number->string depth) "}{"
156 (ly:number->string height) "}")))
158 (define (round-filled-box x y width height blotdiam)
159 (embedded-ps (list 'round-filled-box x y width height blotdiam)))
161 (define (text font s)
163 "\\hbox{\\~a{}~a}" (tex-font-command font)
164 (sanitize-tex-string s)))
166 (define (white-text scale s)
167 (embedded-ps (list 'white-text scale s)))
169 (define (polygon points blotdiameter)
170 (embedded-ps (list 'polygon `(quote ,points) blotdiameter)))
172 (define (draw-line thick fx fy tx ty)
173 (embedded-ps (list 'draw-line thick fx fy tx ty)))
175 ;; no-origin not yet supported by Xdvi
176 (define (no-origin) "")
178 (define (grob-cause offset grob)
179 (if (procedure? point-and-click)
180 (let* ((cause (ly:grob-property grob 'cause))
181 (music-origin (if (ly:music? cause)
182 (ly:music-property cause 'origin)))
183 (location (if (ly:input-location? music-origin)
184 (ly:input-location music-origin))))
187 (string-append "\\special{src:"
188 (apply point-and-click location) "}")