-;;;; output-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>
;;;; Note: currently misused as testbed for titles with markup, see
;;;; input/test/title-markup.ly
;;;;
;;;; TODO:
-;;;; * papersize in header
-;;;; * special characters, encoding.
-;;;; + implement encoding switch (switches? input/output??),
-;;;; + move encoding definitions to ENCODING.ps files, or
-;;;; + find out which program's PS(?) encoding code we can use?
+;;;; * %% Papersize in (header ...)
;;;; * text setting, kerning.
;;;; * document output-interface
-(debug-enable 'backtrace)
-
(define-module (scm output-ps)
#:re-export (quote)
- #:export (define-fonts
- unknown
- output-paper-def
- output-scopes
- select-font
- blank
- dot
- beam
- bracket
- dashed-slur
- char
- dashed-line
- zigzag-line
- symmetric-x-triangle
- ez-ball
- comment
- end-output
- experimental-on
- repeat-slash
- header-end
- header
- placebox
- bezier-sandwich
- start-system
- stop-system
- stop-last-system
- horizontal-line
- filledbox
- round-filled-box
- text
- tuplet
- polygon
- draw-line
- between-system-string
- define-origin
- no-origin
- start-page
- stop-page
- )
-)
+
+ ;; 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))
-;;; Global vars
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define page-count 0)
-(define page-number 0)
-
-;; /lilypondpaperoutputscale 1.75729901757299 def
-;;/lily-output-units 2.83464 def %% milimeter
-;;/output-scale lilypondpaperoutputscale lily-output-units mul def
-;;
-;; output-scale = 1.75729901757299 * 2.83464 = 4.9813100871731003736
-
-(define OUTPUT-SCALE 4.98)
-(define TOP-MARGIN 0)
-
;;; 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))))
-
-;; ("ecmb12" . "ISOLatin1Encoding")))
-
-(define (ps-encoding text)
- (escape-parentheses text))
+;;;
-;; FIXME: lily-def
-(define (ps-string-def prefix key val)
- (string-append "/" prefix (symbol->string key) " ("
- (escape-parentheses val)
- ") def\n"))
-(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")))
+;; ice-9 format uses a lot of memory
+;; using simple-format almost halves lilypond cell usage
-(define (tex-font? fontname)
- (equal? (substring fontname 0 2) "cm"))
+(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
;;;
-;;; 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 l thick)
- (string-append
- (string-join (map ly: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
- (ly:numbers->string
- (list arch_angle arch_width arch_height height arch_thick thick))
- " draw_bracket"))
+(define (bezier-sandwich lst thick)
+ (ly:format "~l ~4f draw_bezier_sandwich"
+ (map number-pair->string4 lst)
+ thick))
(define (char font i)
- (string-append
- (font-command font) " setfont "
- "(\\" (ly: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"))
+ (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
- (string-join (map ly:number-pair->string l) " ")
- " "
- (ly:number->string thick)
- " [ "
- (ly:number->string dash)
- " "
- ;;UGH. 10 ?
- (ly:number->string (* 10 thick))
- " ] 0 draw_dashed_slur"))
-
-(define (font-command font)
- (string-append
- "magfont"
- (string-encode-integer
- (hashq (ly:font-name font) 1000000))
- "m"
- (string-encode-integer
- (inexact->exact (round (* 1000 (ly:font-magnification font)))))))
-
-(define (define-fonts paper font-list)
- (define (define-font command fontname scaling)
- (string-append
- "/" command " { /" fontname " findfont "
- ;; FIXME
- (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
- ;;(ly:number->string scaling) " scalefont } bind def\n"))
-
- (define (reencode-font raw encoding command)
- (string-append
- raw " " encoding " /" command " reencode-font\n"
- "/" command "{ /" command " findfont 1 scalefont } bind def\n"))
-
- ;; frobnicate NAME to jibe with external definitions.
- (define (possibly-mangle-fontname fontname)
- (cond
- ((tex-font? fontname)
- ;; FIXME: we need proper Fontmap for CM fonts, like so:
- ;; /CMR10 (cmr10.pfb);
- ;; (string-upcase fontname)
- (string-append fontname ".pfb"))
- ((or (equal? (substring fontname 0 4) "feta")
- (equal? (substring fontname 0 4) "parm"))
- (regexp-substitute/global
- #f "(feta|parmesan)([a-z-]*)([0-9]+)"
- fontname 'pre "GNU-LilyPond-" 1 2 "-" 3 'post))
- (else fontname)))
-
- (define (font-load-command paper font)
- (let* ((command (font-command font))
- (fontname (ly:font-name font))
- (mangled (possibly-mangle-fontname fontname))
- ;;(encoding (assoc-get fontname font-encoding-alist))
- (encoding (ly:font-coding-name font))
- (designsize (ly:font-design-size font))
- (magnification (* (ly:font-magnification font)))
- (ops (ly:paper-lookup paper 'outputscale))
- (scaling (* ops magnification designsize)))
-
- (if
- #f
- (begin
- (newline)
- (format (current-error-port) "fontname ~S\n" fontname)
- (format (current-error-port) "command ~S\n" command)
- (format (current-error-port) "encoding ~S\n" encoding)
- (format (current-error-port) "mangled ~S\n" mangled)
- (format (current-error-port) "designsize ~S\n" designsize)
- (format (current-error-port) "magnification ~S\n" magnification)
- (format (current-error-port) "ops ~S\n" ops)
- (format (current-error-port) "scaling ~S\n" scaling)))
-
- (if (or (equal? encoding "ISOLatin1Encoding")
- ;; UGH, uhg
- (equal? fontname "feta20")
- (equal? fontname "parmesan20"))
- (define-font command mangled scaling)
- ;; FIXME: should rather tag encoded font
- (let ((raw (string-append command "-raw"))
- (vector (get-coding-command encoding))
- (filename (get-coding-filename encoding)))
- (string-append
- (ly:kpathsea-gulp-file filename)
- (define-font raw mangled scaling)
- (reencode-font raw vector command))))))
-
- (apply string-append
- (map (lambda (x) (font-load-command paper x)) font-list)))
-
-(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
- " "
- (ly:numbers->string
- (list x y radius)) " draw_dot"))
+ (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 (end-output)
- "\nend-lilypond-output\n")
-
-(define (ez-ball ch letter-col ball-col)
- (string-append
- " (" ch ") "
- (ly:numbers->string (list letter-col ball-col))
- " /Helvetica-Bold " ;; ugh
- " draw_ez_ball"))
-
-(define (filledbox breapth width depth height)
- (string-append (ly:numbers->string (list breapth width depth height))
- " draw_box"))
-
-(define (header creator time-stamp page-count-)
- (set! page-count page-count-)
- (set! page-number 0)
- (string-append
- "%!PS-Adobe-3.0\n"
- "%%Creator: " creator " " time-stamp "\n"
- "%%Pages: " (number->string page-count) "\n"
- "%%PageOrder: Ascend\n"
- ;; FIXME: TODO get from paper
- ;; "%%DocumentPaperSizes: a6\n"
- ;;(string-append "GNU LilyPond (" (lilypond-version) "), ")
- ;; (strftime "%c" (localtime (current-time))))
- ;; FIXME: duplicated in every backend
- (ps-string-def
- "lilypond" 'tagline
- (string-append "Engraved by LilyPond (version " (lilypond-version) ")"))))
-
-(define (header-end)
- (string-append
- (ly:gulp-file "lilyponddefs.ps")
- (ly:gulp-file "music-drawing-routines.ps")))
-
-(define (horizontal-line x1 x2 th)
- (draw-line th x1 0 x2 0))
-
-(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) "")
-
-;; FIXME: duplictates output-scopes, duplicated in other backends
-;; FIXME: silly interface name
-(define (output-paper-def pd)
- (let ((prefix "lilypondpaper"))
-
- (define (scope-entry->string key var)
- (if (variable-bound? var)
- (let ((val (variable-ref var)))
- (cond
- ((string? val) (ps-string-def prefix key val))
- ((number? val) (ps-number-def prefix key val))
- (else "")))
- ""))
-
- (apply
- string-append
- (module-map scope-entry->string (ly:output-def-scope pd)))))
-
-;; FIXME: duplicated in other output backends
-;; FIXME: silly interface name
-(define (output-scopes paper scopes fields basename)
- (let ((prefix "lilypond"))
-
- ;; FIXME: duplicates output-paper's scope-entry->string, mostly
- (define (scope-entry->string key var)
- (if (variable-bound? var)
- (let ((val (variable-ref var)))
- (if (and (memq key fields) (string? val))
- (header-to-file basename key val))
- (cond
- ((string? val) (ps-string-def prefix key val))
- ((number? val) (ps-number-def prefix key val))
- (else "")))
- ""))
-
- (define (output-scope scope)
- (apply string-append (module-map scope-entry->string scope)))
-
- (string-append (apply string-append (map output-scope scopes)))))
-
-;; hmm, looks like recursing call is always last statement, does guile
-;; think so too?
-(define (output-stencil port expr offset)
- (if (pair? expr)
- (let ((head (car expr)))
- (cond
- ((ly:input-location? head)
- (display (apply define-origin (ly:input-location head)) port)
- (output-stencil port (cadr expr) offset))
- ((eq? head 'no-origin)
- (display (expression->string head) port)
- (output-stencil port (cadr expr) offset))
- ((eq? head 'translate-stencil)
- (output-stencil port (caddr expr) (offset-add offset (cadr expr))))
- ((eq? head 'combine-stencil)
- (output-stencil port (cadr expr) offset)
- (output-stencil port (caddr expr) offset))
- (else
- (display (placebox (car offset) (cdr offset)
- (expression->string expr)) port))))))
+ (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)))
+
+ (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 (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 (new-start-system origin dim)
- (string-append
- "\n" (ly:number-pair->string origin) " start-system\n"
- "{\n"
- "set-ps-scale-to-lily-scale\n"))
-
-(define (stem breapth width depth height)
- (string-append
- (ly:numbers->string (list breapth width depth height))
- " draw_box" ))
-
-(define (stop-system)
- "} stop-system\n")
-
-(define stop-last-system stop-system)
-
-(define (symmetric-x-triangle thick w h)
- (string-append
- (ly:numbers->string (list h w thick))
- " draw_symmetric_x_triangle"))
+ (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))
-;; (string-append "(" (escape-parentheses s) ") show "))
- (string-append
+ (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)))
- (font-command font) " setfont "
- "(" (ps-encoding 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")
-(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"))
-
-(define (start-page)
- (set! page-number (+ page-number 1))
- (string-append
- "%%Page: " (number->string page-number) " " (number->string page-count) "\n"
- "start-page\n"))
-
-(define (stop-page last?)
- (if last?
- "\nstop-last-page\n"
- "\nstop-page\n"))
+(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) ))
+
projects / lilypond.git / blobdiff