-;;;; ps.scm -- implement Scheme output routines for PostScript
+;;;; output-ps.scm -- implement Scheme output interface for PostScript
;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; (c) 1998--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
-
-(debug-enable 'backtrace)
-
-
-(define-module (scm output-ps))
-(define this-module (current-module))
-
-(use-modules
- (guile)
- (ice-9 regex)
- (lily))
-
-
-
-;;; Lily output interface --- cleanup and docme
-
-;; TODO: fucks up if outputting strings with parentheses.
-
-;; Module entry
-(define-public (ps-output-expression expr port)
- (display (eval expr this-module) port))
-
-
-;; Global vars
-
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define font-name-alist '())
-
-
-;; Interface functions
-(define (beam width slope thick blot)
- (string-append
- (numbers->string (list slope width thick blot)) " draw_beam" ))
+;;;; Note: currently misused as testbed for titles with markup, see
+;;;; input/test/title-markup.ly
+;;;;
+;;;; TODO:
+;;;; * %% Papersize in (header ...)
+;;;; * text setting, kerning.
+;;;; * document output-interface
+
+(define-module (scm output-ps)
+ #:re-export (quote)
+
+ ;; JUNK this -- see lily.scm: ly:all-output-backend-commands
+ #:export (unknown
+ bezier-sandwich
+ char
+ circle
+ comment
+ dashed-line
+ dashed-slur
+ dot
+ draw-line
+ ellipse
+ embedded-ps
+ named-glyph
+ no-origin
+ oval
+ placebox
+ polygon
+ repeat-slash
+ resetcolor
+ resetrotation
+ round-filled-box
+ setcolor
+ setrotation
+ text
+ ))
+
+
+(use-modules (guile)
+ (ice-9 regex)
+ (srfi srfi-1)
+ (srfi srfi-13)
+ (scm framework-ps)
+ (lily))
+
+;;; helper functions, not part of output interface
+;;;
+
+
+;; ice-9 format uses a lot of memory
+;; using simple-format almost halves lilypond cell usage
+
+(define (str4 num)
+ (if (or (nan? num) (inf? num))
+ (begin
+ (ly:warning (_ "Found infinity or nan in output. Substituting 0.0"))
+ (if (ly:get-option 'strict-infinity-checking)
+ (exit 1))
+ "0.0")
+ (ly:number->string num)))
+
+(define (number-pair->string4 numpair)
+ (ly:format "~4l" numpair))
+
+;;;
+;;; Lily output interface, PostScript implementation --- cleanup and docme
+;;;
;; two beziers
-(define (bezier-sandwich l thick)
- (string-append
- (apply string-append (map number-pair->string l))
- (ly:number->string thick)
- " draw_bezier_sandwich "))
-
-(define (bracket arch_angle arch_width arch_height height arch_thick thick)
- (string-append
- (numbers->string
- (list arch_angle arch_width arch_height height arch_thick thick))
- " draw_bracket"))
-
-(define (symmetric-x-triangle thick w h)
- (string-append
- (numbers->string (list h w thick))
- " draw_symmetric_x_triangle"))
-
-
-(define (char i)
- (string-append
- "(\\" (inexact->string i 8) ") show " ))
-
-
-(define (comment s)
- (string-append "% " s "\n"))
-
-
-(define (dashed-line thick on off dx dy)
- (string-append
- (ly:number->string dx)
- " "
- (ly:number->string dy)
- " "
- (ly:number->string thick)
- " [ "
- (ly:number->string on)
- " "
- (ly:number->string off)
- " ] 0 draw_dashed_line"))
+(define (bezier-sandwich lst thick)
+ (ly:format "~l ~4f draw_bezier_sandwich"
+ (map number-pair->string4 lst)
+ thick))
+
+(define (char font i)
+ (ly:format "~a (\\~a) show"
+ (ps-font-command font)
+ (ly:inexact->string i 8)))
+
+(define (circle radius thick fill)
+ (ly:format
+ "~a ~4f ~4f draw_circle"
+ (if fill
+ "true"
+ "false")
+ radius thick))
+
+(define (dashed-line thick on off dx dy phase)
+ (ly:format "~4f ~4f ~4f [ ~4f ~4f ] ~4f draw_dashed_line"
+ dx
+ dy
+ thick
+ on
+ off
+ phase))
;; what the heck is this interface ?
-(define (dashed-slur thick dash l)
- (string-append
- (apply string-append (map number-pair->string l))
- (ly:number->string thick)
- " [ "
- (ly:number->string dash)
- " "
- ;;UGH. 10 ?
- (ly:number->string (* 10 thick))
- " ] 0 draw_dashed_slur"))
-
-(define lily-traced-cm-fonts
- (map symbol->string
- '(cmbx14
- cmbx17
- cmbxti12
- cmbxti14
- cmbxti7
- cmbxti8
- cmcsc12
- cmcsc7
- cmtt17)))
-
-(define (define-fonts internal-external-name-mag-pairs)
-
- (define (font-load-command name-mag command)
-
- ;; frobnicate NAME to jibe with external definitions.
- (define (possibly-capitalize-font-name name)
- (cond
- ((and (equal? (substring name 0 2) "cm")
- (not (member name lily-traced-cm-fonts)))
- (string-upcase name))
- ((equal? (substring name 0 4) "feta")
- (regexp-substitute/global #f "feta([a-z-]*)([0-9]+)" name 'pre "GNU-LilyPond-feta" 1 "-" 2 'post))
- (else name)))
-
- (string-append
- "/" command
- " { /"
- ;; Ugh, the Bluesky type1 fonts for computer modern use capitalized
- ;; postscript font names.
- (possibly-capitalize-font-name (car name-mag))
- " findfont "
- "20 " (ly:number->string (cdr name-mag)) " mul "
- "output-scale div scalefont setfont } bind def "
- "\n"))
-
- (define (ps-encoded-fontswitch name-mag-pair)
- (let* ((key (car name-mag-pair))
- (value (cdr name-mag-pair)))
- (cons key
- (cons value
- (string-append "lilyfont"
- (car value)
- "-"
- (number->string (cdr value)))))))
-
- (set! font-name-alist (map ps-encoded-fontswitch
- internal-external-name-mag-pairs))
-
- (apply string-append
- (map (lambda (x) (font-load-command (car x) (cdr x)))
- (map cdr font-name-alist))))
-
-(define (define-origin file line col) "")
+(define (dashed-slur thick on off l)
+ (ly:format "~l ~4f [ ~4f ~4f ] 0 draw_dashed_slur"
+ (let ((control-points (append (cddr l) (list (car l) (cadr l)))))
+ (map number-pair->string4 control-points))
+ thick
+ on
+ off))
(define (dot x y radius)
- (string-append
- " "
- (numbers->string
- (list x y radius)) " draw_dot"))
-
-(define (zigzag-line centre? zzw zzh thick dx dy)
- (string-append
- (if centre? "true" "false")
- " "
- (ly:number->string zzw)
- " "
- (ly:number->string zzh)
- " "
- (ly:number->string thick)
- " 0 0 "
- (ly:number->string dx)
- " "
- (ly:number->string dy)
- " draw_zigzag_line "))
+ (ly:format " ~4l draw_dot" (list radius x y)))
(define (draw-line thick x1 y1 x2 y2)
- (string-append
- " 1 setlinecap
- 1 setlinejoin "
- (ly:number->string thick)
- " setlinewidth "
- (ly:number->string x1)
- " "
- (ly:number->string y1)
- " moveto "
- (ly:number->string x2)
- " "
- (ly:number->string y2)
- " lineto stroke"))
-
-(define (polygon points blotdiameter)
- (string-append
- " "
- (numbers->string points)
- (ly:number->string (/ (length points) 2))
- (ly:number->string blotdiameter)
- " draw_polygon"))
-
-(define (end-output)
- "\nend-lilypond-output\n")
-
-(define (ez-ball ch letter-col ball-col)
- (string-append
- " (" ch ") "
- (numbers->string (list letter-col ball-col))
- " /Helvetica-Bold " ;; ugh
- " draw_ez_ball"))
-
-(define (filledbox breapth width depth height)
- (string-append (numbers->string (list breapth width depth height))
- " draw_box"))
-
-(define (horizontal-line x1 x2 th)
- (draw-line th x1 0 x2 0))
-
-(define (fontify name-mag-pair exp)
-
- (define (select-font name-mag-pair)
- (let* ((c (assoc name-mag-pair font-name-alist)))
- (if (eq? c #f)
- (begin
- (display "FAILED\n")
- (display (object-type (car name-mag-pair)))
- (display (object-type (caaar font-name-alist)))
- (ly:warn (string-append
- "Programming error: No such font known "
- (car name-mag-pair) " "
- (ly:number->string (cdr name-mag-pair))))
-
- ;; Upon error, issue no command
- "")
- (string-append " " (cddr c) " "))))
-
- (string-append (select-font name-mag-pair) exp))
-
-(define (header creator generate)
- (string-append
- "%!PS-Adobe-3.0\n"
- "%%Creator: " creator generate "\n"))
-
-(define (header-end)
- (string-append
- ;; URG: now we can't use scm output without Lily
- (ly:gulp-file "lilyponddefs.ps")
- "{exch pop //systemdict /run get exec}\n\n"
- (ly:gulp-file "music-drawing-routines.ps")
- "{ exch pop //systemdict /run get exec }\n\n"
- ;; ps-testing wreaks havoc when used with lilypond-book.
- ;; -- is this still true with new modules system?
-;; (if (defined? 'ps-testing) "\n /testing true def" "")
- ; "\n /testing true def"
- ))
-
-(define (lily-def key val)
- (let ((prefix "lilypondpaper"))
- (if (string=?
- (substring key 0 (min (string-length prefix) (string-length key)))
- prefix)
- (string-append "/" key " {" val "} bind def\n")
- (string-append "/" key " (" val ") def\n"))))
-
-(define (no-origin) "")
+ (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
+ (- x2 x1) (- y2 y1)
+ x1 y1 thick))
+
+(define (ellipse x-radius y-radius thick fill)
+ (ly:format
+ "~a ~4f ~4f ~4f draw_ellipse"
+ (if fill
+ "true"
+ "false")
+ x-radius y-radius thick))
+
+(define (embedded-ps string)
+ string)
+
+(define (glyph-string postscript-font-name
+ size
+ cid?
+ w-x-y-named-glyphs)
+
+ (define (glyph-spec w x y g)
+ (let ((prefix (if (string? g) "/" "")))
+ (ly:format "~4f ~4f ~a~a"
+ (+ w x) y
+ prefix g)))
-(define (placebox x y s)
- (string-append
- (ly:number->string x) " " (ly:number->string y) " {" s "} place-box\n"))
-
-(define (repeat-slash wid slope thick)
- (string-append
- (numbers->string (list wid slope thick))
- " draw_repeat_slash"))
-
-(define (round-filled-box x y width height blotdiam)
- (string-append
- " "
- (numbers->string
- (list x y width height blotdiam)) " draw_round_box"))
-
-(define (start-system width height)
- (string-append
- "\n" (ly:number->string height)
- " start-system\n"
- "{\n"
- "set-ps-scale-to-lily-scale"))
-
-(define (stem breapth width depth height)
- (string-append
- (numbers->string (list breapth width depth height))
- " draw_box" ))
-
-(define (stop-last-system)
- (stop-system))
+ (ly:format
+ (if cid?
+"/~a /CIDFont findresource ~a output-scale div scalefont setfont
+~a
+~a print_glyphs"
+
+"/~a ~a output-scale div selectfont
+~a
+~a print_glyphs")
+ postscript-font-name
+ size
+ (string-join (map (lambda (x) (apply glyph-spec x))
+ (reverse w-x-y-named-glyphs)) "\n")
+ (length w-x-y-named-glyphs)))
+
+
+(define (grob-cause offset grob)
+ (if (ly:get-option 'point-and-click)
+ (let* ((cause (ly:grob-property grob 'cause))
+ (music-origin (if (ly:stream-event? cause)
+ (ly:event-property cause 'origin))))
+ (if (ly:input-location? music-origin)
+ (let* ((location (ly:input-file-line-char-column music-origin))
+ (raw-file (car location))
+ (file (if (is-absolute? raw-file)
+ raw-file
+ (string-append (ly-getcwd) "/" raw-file)))
+ (x-ext (ly:grob-extent grob grob X))
+ (y-ext (ly:grob-extent grob grob Y)))
+
+ (if (and (< 0 (interval-length x-ext))
+ (< 0 (interval-length y-ext)))
+ (ly:format "~4f ~4f ~4f ~4f (textedit://~a:~a:~a:~a) mark_URI\n"
+ (+ (car offset) (car x-ext))
+ (+ (cdr offset) (car y-ext))
+ (+ (car offset) (cdr x-ext))
+ (+ (cdr offset) (cdr y-ext))
+
+ ;; TODO
+ ;;full escaping.
+
+ ;; backslash is interpreted by GS.
+ (ly:string-substitute "\\" "/"
+ (ly:string-substitute " " "%20" file))
+ (cadr location)
+ (caddr location)
+ (cadddr location))
+ ""))
+ ""))
+ ""))
+
+(define (named-glyph font glyph)
+ (ly:format "~a /~a glyphshow " ;;Why is there a space at the end?
+ (ps-font-command font)
+ glyph))
+
+(define (no-origin)
+ "")
+
+(define (oval x-radius y-radius thick fill)
+ (ly:format
+ "~a ~4f ~4f ~4f draw_oval"
+ (if fill
+ "true"
+ "false")
+ x-radius y-radius thick))
-(define (stop-system)
- "}\nstop-system\n")
+(define (placebox x y s)
+ (ly:format
+"~4f ~4f moveto
+~a\n" x y s))
+
+(define (polygon points blot-diameter filled?)
+ (ly:format "~a ~4l ~a ~4f draw_polygon"
+ (if filled? "true" "false")
+ points
+ (- (/ (length points) 2) 1)
+ blot-diameter))
+
+(define (repeat-slash width slope beam-thickness)
+ (define (euclidean-length x y)
+ (sqrt (+ (* x x) (* y y))))
+
+ (let ((x-width (euclidean-length beam-thickness (/ beam-thickness slope)))
+ (height (* width slope)))
+ (ly:format "~4l draw_repeat_slash"
+ (list x-width width height))))
+
+
+(define (round-filled-box left right bottom top blotdiam)
+ (let* ((halfblot (/ blotdiam 2))
+ (x (- halfblot left))
+ (width (- right (+ halfblot x)))
+ (y (- halfblot bottom))
+ (height (- top (+ halfblot y))))
+ (ly:format "~4l draw_round_box"
+ (list width height x y blotdiam))))
+
+;; save current color on stack and set new color
+(define (setcolor r g b)
+ (ly:format "gsave ~4l setrgbcolor\n"
+ (list r g b)))
+
+;; restore color from stack
+(define (resetcolor) "grestore\n")
+
+;; rotation around given point
+(define (setrotation ang x y)
+ (ly:format "gsave ~4l translate ~a rotate ~4l translate\n"
+ (list x y)
+ ang
+ (list (* -1 x) (* -1 y))))
+
+(define (resetrotation ang x y)
+ "grestore ")
+
+
+(define (text font s)
+ ;; (ly:warning (_ "TEXT backend-command encountered in Pango backend"))
+ ;; (ly:warning (_ "Arguments: ~a ~a"" font str))
+
+ (let* ((space-length (cdar (ly:text-dimension font " ")))
+ (space-move (string-append (number->string space-length)
+ ;; how much precision do we need here?
+ " 0.0 rmoveto "))
+ (out-vec (decode-byte-string s)))
-(define (text s)
- (string-append "(" s ") show "))
+ (string-append
+ (ps-font-command font) " "
+ (string-join
+ (vector->list
+ (vector-for-each
+
+ (lambda (sym)
+ (if (eq? sym 'space)
+ space-move
+ (string-append "/" (symbol->string sym) " glyphshow")))
+ out-vec))))))
(define (unknown)
"\n unknown\n")
-;; top-of-file, wtf?
-(define (top-of-file)
- (header (string-append "GNU LilyPond (" (lilypond-version) "), ")
- (strftime "%c" (localtime (current-time))))
- ;;; ugh
- (ps-string-def
- "lilypond" 'tagline
- (string-append "Engraved by LilyPond (" (lilpond-version) ")")))
-
-(define (output-paper-def pd)
- (apply
- string-append
- (module-map
- (lambda (sym var)
- (let ((val (variable-ref var))
- (key (symbol->string sym)))
-
- (cond
- ((string? val)
- (ps-string-def "lilypondpaper" sym val))
- ((number? val)
- (ps-number-def "lilypondpaper" sym
- (if (integer? val)
- (number->string val)
- (number->string (exact->inexact val)))))
- (else ""))))
-
- (ly:output-def-scope pd))))
-
-
-(define (ps-string-def a b c)
- (string-append "/" a (symbol->string b) " (" c ") def\n"))
-
-(define (ps-number-def a b c)
- (string-append "/" a (symbol->string b) " " c " def\n"))
-
-(define (output-scopes scopes fields basename)
- (define (output-scope scope)
- (apply
- string-append
- (module-map
- (lambda (sym var)
- (let ((val (variable-ref var))
- (tex-key (symbol->string sym)))
-
- (if (memq sym fields)
- (header-to-file basename sym val))
-
- (cond
- ((string? val)
- (ps-string-def "lilypond" sym val))
-
- ((number? val)
- (ps-number-def "lilypond" sym
- (if (integer? val)
- (number->string val)
- (number->string (exact->inexact val)))))
- (else ""))))
- scope)))
+(define (url-link url x y)
+ (ly:format "~a ~a currentpoint vector_add ~a ~a currentpoint vector_add (~a) mark_URI"
+ (car x)
+ (car y)
+ (cdr x)
+ (cdr y)
+ url))
+
+(define (utf-8-string pango-font-description string)
+ (ly:warning (_ "utf-8-string encountered in PS backend")))
+
+(define (path thickness exps)
+ (define (convert-path-exps exps)
+ (if (pair? exps)
+ (let*
+ ((head (car exps))
+ (rest (cdr exps))
+ (arity
+ (cond
+ ((memq head '(rmoveto rlineto lineto moveto)) 2)
+ ((memq head '(rcurveto curveto)) 6)
+ (else 1)))
+ (args (take rest arity))
+ )
+
+ ;; WARNING: this is a vulnerability: a user can output arbitrary PS code here.
+ (cons (ly:format
+ "~l ~a "
+ args
+ head)
+ (convert-path-exps (drop rest arity))))
+ '()))
+
+
+ (ly:format
+ "1 setlinecap ~a setlinewidth\n~l stroke"
+ thickness
+ (convert-path-exps exps) ))
- (apply string-append
- (map output-scope scopes)) )
-
projects / lilypond.git / blobdiff