;;;;
;;;; 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--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
;;;; Note: currently misused as testbed for titles with markup, see
;;;; input/test/title-markup.ly
;;;; * text setting, kerning.
;;;; * document output-interface
-(debug-enable 'backtrace)
-
(define-module (scm output-ps)
#:re-export (quote)
;; JUNK this -- see lily.scm: ly:all-output-backend-commands
#:export (unknown
- blank
- dot
- white-dot
- beam
- bracket
- dashed-slur
+ bezier-sandwich
char
- named-glyph
- dashed-line
- zigzag-line
- ez-ball
+ circle
comment
- repeat-slash
- placebox
- bezier-sandwich
- horizontal-line
+ dashed-line
+ dashed-slur
+ dot
+ draw-line
embedded-ps
- filledbox
+ named-glyph
+ no-origin
+ placebox
+ polygon
+ repeat-slash
+ resetcolor
+ resetrotation
round-filled-box
+ setcolor
+ setrotation
text
- white-text
- polygon
- draw-line
- no-origin))
+ zigzag-line))
(use-modules (guile)
(scm framework-ps)
(lily))
-
-;;(map export
-;; (append (ly:all-stencil-expressions) (ly:all-output-backend-commands)))
-
-;; huh?
-;;(write (ly:all-output-backend-commands))
-;;(write (ly:all-stencil-expressions))
+;;; helper functions, not part of output interface
+;;;
-;;; helper functions, not part of output interface
(define (escape-parentheses s)
(regexp-substitute/global #f "(^|[^\\])([\\(\\)])" s 'pre 1 "\\" 2 'post))
-(define (offset-add a b)
- (cons (+ (car a) (car b))
- (+ (cdr a) (cdr b))))
-
(define (ps-encoding text)
(escape-parentheses text))
+(define (round2 num)
+ (/ (round (* 100 num)) 100))
+
+(define (round4 num)
+ (/ (round (* 10000 num)) 10000))
+
+(define (str4 num)
+ (if (or (nan? num) (inf? num))
+ (begin
+ (ly:warning (_ "Found infinity or nan in output. Substituting 0.0"))
+ "0.0")
+ (format #f "~f" (round4 num))))
+
+(define (number-pair->string4 numpair)
+ (string-append (str4 (car numpair))
+ " "
+ (str4 (cdr numpair))))
+
+(define (numbers->string4 numlist)
+ (string-join (map str4 numlist) " "))
+
;; FIXME: lily-def
(define-public (ps-string-def prefix key val)
- (string-append "/" prefix (symbol->string key) " ("
- (escape-parentheses val)
- ") def\n"))
-
+ (format #f "/ ~a~a (~a) def\n"
+ prefix
+ (symbol->string key)
+ (escape-parentheses val)))
(define (ps-number-def prefix key val)
(let ((s (if (integer? val)
(ly:number->string val)
(ly:number->string (exact->inexact val)))))
- (string-append "/" prefix (symbol->string key) " " s " def\n")))
+ (format #f "/~a~a ~a def\n"
+ prefix
+ (symbol->string key) s)))
;;;
;;; Lily output interface, PostScript implementation --- cleanup and docme
;;;
-;;; Output-interface functions
-(define (beam width slope thick blot)
- (string-append
- (ly:numbers->string (list slope width thick blot)) " draw_beam" ))
-
;; two beziers
(define (bezier-sandwich lst thick)
- (string-append
- (string-join (map ly:number-pair->string lst) " ")
- " "
- (ly:number->string thick)
- " draw_bezier_sandwich"))
-
-(define (bracket arch_angle arch_width arch_height height arch_thick thick)
- (string-append
- (ly:numbers->string
- (list arch_angle arch_width arch_height height arch_thick thick))
- " draw_bracket"))
+ (format #f "~a ~a draw_bezier_sandwich"
+ (string-join (map number-pair->string4 lst) " ")
+ (str4 thick)))
(define (char font i)
- (string-append
- (ps-font-command font) " setfont "
- "(\\" (ly:inexact->string i 8) ") show"))
-
-(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"))
+ (format #f "~a (\\~a) show"
+ (ps-font-command font)
+ (ly:inexact->string i 8)))
+
+(define (circle radius thick fill)
+ (format #f
+ "~a ~f ~f draw_circle"
+ (if fill
+ "true"
+ "false")
+ (round4 radius) (round4 thick)))
+
+(define (dashed-line thick on off dx dy phase)
+ (format #f "~a ~a ~a [ ~a ~a ] ~a draw_dashed_line"
+ (str4 dx)
+ (str4 dy)
+ (str4 thick)
+ (str4 on)
+ (str4 off)
+ (str4 phase)
+
+ ))
;; what the heck is this interface ?
-(define (dashed-slur thick dash lst)
- (string-append
- (string-join (map ly:number-pair->string lst) " ")
- " "
- (ly:number->string thick)
- " [ "
- (ly:number->string dash)
- " "
- ;;UGH. 10 ?
- (ly:number->string (* 10 thick))
- " ] 0 draw_dashed_slur"))
+(define (dashed-slur thick on off l)
+ (format #f "~a ~a [ ~a ~a ] 0 draw_dashed_slur"
+ (let ((control-points (append (cddr l) (list (car l) (cadr l)))))
+ (string-join (map number-pair->string4 control-points) " "))
+ (str4 thick)
+ (str4 on)
+ (str4 off)))
(define (dot x y radius)
- (string-append
- " "
- (ly:numbers->string
- (list x y radius)) " draw_dot"))
+ (format #f " ~a draw_dot"
+ (numbers->string4 (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"))
+ (format #f "~a ~a ~a ~a ~a draw_line"
+ (str4 (- x2 x1))
+ (str4 (- y2 y1))
+ (str4 x1)
+ (str4 y1)
+ (str4 thick)))
(define (embedded-ps string)
string)
-(define (ez-ball ch letter-col ball-col)
- (string-append
- " (" ch ") "
- (ly:numbers->string (list letter-col ball-col))
- ;; FIXME: barf
- " /Helvetica-Bold "
- " draw_ez_ball"))
-
-;; FIXME: use draw_round_box
-(define (filledbox breapth width depth height)
- (string-append (ly:numbers->string (list breapth width depth height))
- " draw_box"))
-
-
-(define (glyph-string
- postscript-font-name
- size
- x-y-named-glyphs)
- (format #f "gsave 1 output-scale div 1 output-scale div scale
- /~a findfont ~a scalefont setfont\n~a grestore" postscript-font-name size
- (apply
- string-append
- (map (lambda (item)
- (let
- ((x (car item))
- (y (cadr item))
- (g (caddr item)))
-
- (if (and (= 0.0 x)
- (= 0.0 y))
- (format #f " /~a glyphshow " g)
- (format #f " ~a ~a rmoveto /~a glyphshow "
- x y g))))
- x-y-named-glyphs))
- ))
-
-(define (grob-cause grob)
- "")
-
-;; WTF is this in every backend?
-(define (horizontal-line x1 x2 th)
- (draw-line th x1 0 x2 0))
+(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) "/" "")))
+ (format #f "~f ~f ~a~a"
+ (round2 (+ w x))
+ (round2 y)
+ prefix g)))
+
+ (format #f
+ (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)
+ (let* ((cause (ly:grob-property grob 'cause))
+ (music-origin (if (ly:stream-event? cause)
+ (ly:event-property cause 'origin))))
+ (if (not (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)))
+ (format #f "~$ ~$ ~$ ~$ (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.
+ (string-regexp-substitute "\\\\" "/"
+ (string-regexp-substitute " " "%20" file))
+ (cadr location)
+ (caddr location)
+ (cadddr location))
+ "")))))
(define (lily-def key val)
(let ((prefix "lilypondlayout"))
(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"))))
+ (substring key 0 (min (string-length prefix) (string-length key)))
+ prefix)
+ (format "/~a { ~a } bind def\n" key val)
+ (format "/~a (~a) def\n" key val))))
(define (named-glyph font glyph)
- (string-append
- (ps-font-command font) " setfont "
- "/" glyph " glyphshow "))
+ (format #f "~a /~a glyphshow " ;;Why is there a space at the end?
+ (ps-font-command font)
+ glyph))
(define (no-origin)
"")
(define (placebox x y s)
- (string-append
- (ly:number->string x) " " (ly:number->string y) " { " s " } place-box\n"))
-
-(define (polygon points blotdiameter)
- (string-append
- (ly:numbers->string points) " "
- (ly:number->string (/ (length points) 2)) " "
- (ly:number->string blotdiameter)
- " draw_polygon"))
-
-(define (repeat-slash wid slope thick)
- (string-append
- (ly:numbers->string (list wid slope thick))
- " draw_repeat_slash"))
-
-(define (round-filled-box x y width height blotdiam)
- (string-append
- (ly:numbers->string
- (list x y width height blotdiam)) " draw_round_box"))
-
-(define (old-text font s)
- ;; ugh, we should find a better way to
- ;; extract the hsbw for /space from the font.
- (let* ((space-length (cdar (ly:text-dimension font " ")))
- (commands '())
- (add-command (lambda (x) (set! commands (cons x commands)))))
-
- (string-fold
- (lambda (chr word)
- "Translate space as into moveto, group the rest in words."
- (if (and (< 0 (string-length word))
- (equal? #\space chr))
- (add-command
- (string-append "(" (ps-encoding word) ") show\n")))
-
- (if (equal? #\space chr)
- (add-command (string-append (number->string space-length)
- " 0.0 rmoveto ")))
-
- (if (equal? #\space chr)
- ""
- (string-append word (make-string 1 chr))))
- ""
- (string-append s " "))
-
- (string-append
- (ps-font-command font) " setfont "
- (string-join (reverse commands)))))
-
-(define (new-text font s)
+ (format #f
+"~a ~a moveto
+~a\n"
+ (str4 x)
+ (str4 y)
+ s))
+
+(define (polygon points blot-diameter filled?)
+ (format #f "~a ~a ~a ~a draw_polygon"
+ (if filled? "true" "false")
+ (numbers->string4 points)
+ (number->string (- (/ (length points) 2) 1))
+ (str4 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)))
+ (format #f "~a draw_repeat_slash"
+ (numbers->string4 (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))))
+ (format #f "~a draw_round_box"
+ (numbers->string4
+ (list width height x y blotdiam)))))
+
+;; save current color on stack and set new color
+(define (setcolor r g b)
+ (format #f "gsave ~a setrgbcolor\n"
+ (numbers->string4 (list r g b))))
+
+;; restore color from stack
+(define (resetcolor) "grestore \n")
+
+;; rotation around given point
+(define (setrotation ang x y)
+ (format "gsave ~a translate ~a rotate ~a translate\n"
+ (numbers->string4 (list x y))
+ (number->string ang)
+ (numbers->string4 (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 "))
- (input-enc (assoc-get 'input-name
- (ly:font-encoding-alist font)
- 'latin1))
- (out-vec (decode-byte-string input-enc s)))
+ (out-vec (decode-byte-string s)))
(string-append
- (ps-font-command font) " setfont "
+ (ps-font-command font) " "
(string-join
(vector->list
(vector-for-each
(string-append "/" (symbol->string sym) " glyphshow")))
out-vec))))))
-;;(define text old-text)
-(define (text font str)
- (ly:warn "TEXT backend-command encountered in Pango backend\nargs: ~a ~a" font str)
- "")
-
-;; FIXME: BARF helvetica?
-(define (white-text scale s)
- (let ((mystring (string-append
- "(" s ") " (number->string scale)
- " /Helvetica-Bold "
- " draw_white_text")))
- mystring))
-
(define (unknown)
"\n unknown\n")
-(define (white-dot x y radius)
- (string-append
- " "
- (ly:numbers->string
- (list x y radius)) " draw_white_dot"))
+(define (url-link url x y)
+ (format #f "~$ ~$ ~$ ~$ (~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 (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"))
+ (format #f "~a ~a ~a ~a 0 0 ~a ~a draw_zigzag_line"
+ (if centre? "true" "false")
+ (str4 zzw)
+ (str4 zzh)
+ (str4 thick)
+ (str4 dx)
+ (str4 dy)))
+
+
+(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 (format "~a ~a "
+ (string-join (map (lambda (x) (format "~a " x)) args) " ")
+ head)
+ (convert-path-exps (drop rest arity))))
+ '()))
+
+
+ (format
+ "1 setlinecap ~a setlinewidth\n~a stroke"
+ thickness
+ (string-join (convert-path-exps exps) " ")))
+
projects / lilypond.git / blobdiff