-;;;; 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>
+;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
;;;; Note: currently misused as testbed for titles with markup, see
;;;; input/test/title-markup.ly
;;;;
;;;; TODO:
-;;;; * special characters, encoding.
+;;;; * %% Papersize in (header ...)
;;;; * text setting, kerning.
-;;;; * font properties
-;;;; * customisation of title markup, piece title markup?
-;;;; * page layout
;;;; * document output-interface
(debug-enable 'backtrace)
-(define-module (scm output-ps))
-(define this-module (current-module))
-
-(use-modules
- (guile)
- (ice-9 regex)
- (srfi srfi-13)
- (lily))
-
-
-
-
-;;; Lily output interface, PostScript implementation --- cleanup and docme
-
-;;; Module entry
-(define-public (ps-output-expression expr port)
- (display (expression->string expr) port))
-
-;;; Global vars
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define font-name-alist '())
-
-;; WIP -- stencils from markup? values of output-scopes
-(define header-stencil #f)
-
-(define BASELINE-SKIP 3)
-
-;; /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)
-(define PROPS `(((font-family . roman)
- (word-space . 1)
- (baseline-skip . ,BASELINE-SKIP)
- (font-series . medium)
- (font-style . roman)
- (font-shape . upright)
- (font-size . 0))))
-
+(define-module (scm output-ps)
+ #:re-export (quote)
+ #:export (define-fonts
+ unknown
+ 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
+ define-origin
+ no-origin
+ start-page
+ stop-page
+ ))
+
+(use-modules (guile)
+ (ice-9 regex)
+ (srfi srfi-1)
+ (srfi srfi-13)
+ (lily))
;;; helper functions, not part of output interface
(define (escape-parentheses s)
(cons (+ (car a) (car b))
(+ (cdr a) (cdr b))))
-(define LATIN1-ENCODING-ALIST
- '(("ö" . "oumlaut")
- ("ò" . "ograve")
- ("ó" . "oacute")
- ("ô" . "ocircumflex")
- ("õ" . "otilde")
- ("ø" . "oslash")))
-
-(define LATIN1-ENCODING-COMMANDS
- "/oumlaut { (o) show gsave -1 0 rmoveto (\\177) show grestore } bind def
-/ograve { (o) show gsave -1 0 rmoveto (\\022) show grestore } def
-/oacute { (o) show gsave -1 0 rmoveto (\\023) show grestore } def
-/ocircumflex { (o) show gsave -1 0 rmoveto (^) show grestore } def
-/otilde { (o) show gsave -1 0 rmoveto (~) show grestore } def
-/oslash { (o) show gsave -1 0 rmoveto (\\034) show grestore } def
-")
-
(define (ps-encoding text)
- (let ((s (escape-parentheses text)))
- (define (helper alist-list s)
- (if (not (pair? alist-list))
- s
- (helper (cdr alist-list)
- (regexp-substitute/global
- #f (caar alist-list) s
- 'pre (string-append ") show " (cdar alist-list) " (")
- 'post))))
- (helper LATIN1-ENCODING-ALIST s)))
+ (escape-parentheses text))
;; FIXME: lily-def
-(define (ps-string-def prefix key val)
+(define-public (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)
- (number->string val)
- (number->string (exact->inexact val)))))
+ (ly:number->string val)
+ (ly:number->string (exact->inexact val)))))
(string-append "/" prefix (symbol->string key) " " s " def\n")))
-(define (tex-font? fontname)
- (equal? (substring fontname 0 2) "cm"))
-
+;;;
+;;; Lily output interface, PostScript implementation --- cleanup and docme
+;;;
;;; Output-interface functions
(define (beam width slope thick blot)
(string-append
- (numbers->string (list slope width thick blot)) " draw_beam" ))
+ (ly:numbers->string (list slope width thick blot)) " draw_beam" ))
;; two beziers
(define (bezier-sandwich l thick)
(string-append
- (apply string-append (map number-pair->string l))
+ (string-join (map ly:number-pair->string l) " ")
+ " "
(ly:number->string thick)
- " draw_bezier_sandwich "))
+ " draw_bezier_sandwich"))
(define (bracket arch_angle arch_width arch_height height arch_thick thick)
(string-append
- (numbers->string
+ (ly:numbers->string
(list arch_angle arch_width arch_height height arch_thick thick))
" draw_bracket"))
-(define (char i)
+(define (char font i)
(string-append
- "(\\" (inexact->string i 8) ") show " ))
+ (ps-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 dx) " "
+ (ly:number->string dy) " "
(ly:number->string thick)
" [ "
- (ly:number->string on)
- " "
+ (ly:number->string on) " "
(ly:number->string off)
" ] 0 draw_dashed_line"))
;; what the heck is this interface ?
(define (dashed-slur thick dash l)
(string-append
- (apply string-append (map number-pair->string l))
+ (string-join (map ly:number-pair->string l) " ")
+ " "
(ly:number->string thick)
" [ "
(ly:number->string dash)
(ly:number->string (* 10 thick))
" ] 0 draw_dashed_slur"))
-(define (define-fonts internal-external-name-mag-pairs)
-
- (define (fontname->designsize fontname)
- (let ((i (string-index fontname char-numeric?)))
- (string->number (substring fontname i))))
-
- ;; (define (font-load-command name-mag command)
- (define (font-load-command lst)
- (let* ((key-name-size (car lst))
- (value (cdr lst))
- (value-name-size (car value))
- (command (cdr value))
- (fontname (car value-name-size))
- (designsize (if (tex-font? fontname)
- (/ 12 (fontname->designsize fontname))
- ;; This is about 12/20 :-)
- (cdr key-name-size)))
- (fontsize (cdr value-name-size))
- (scaling (* 12 (/ fontsize designsize)))
- (scaling (/ fontsize (/ designsize 12))))
-
- ;; 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 8) "parmesan"))
- (regexp-substitute/global
- #f "(feta|parmesan)([a-z-]*)([0-9]+)"
- fontname 'pre "GNU-LilyPond-" 1 2 "-" 3 'post))
- (else fontname)))
- (if
- #f
- (begin
- (newline)
- (format (current-error-port) "key-name-size ~S\n" key-name-size)
- (format (current-error-port) "value ~S\n" value)
- (format (current-error-port) "value-name-size ~S\n" value-name-size)
- (format (current-error-port) "command ~S\n" command)
- (format (current-error-port) "designsize ~S\n" designsize)
- (format (current-error-port) "fontname ~S\n" fontname)
- (format (current-error-port) "fontsize ~S\n" fontsize)
- (format (current-error-port) "scaling ~S\n" scaling)))
-
- (string-append
- "/" command
- " { /" (possibly-mangle-fontname fontname) " findfont "
- (ly:number->string scaling)
- "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))
- (fontname (car value))
- (scaling (cdr value)))
- (cons key (cons value
- (string-append
- "lilyfont" fontname "-" (number->string scaling))))))
-
- (set! font-name-alist
- (map ps-encoded-fontswitch internal-external-name-mag-pairs))
- (apply string-append (map font-load-command font-name-alist)))
+; todo: merge with tex-font-command?
+
+(define-public (ps-font-command font . override-coding)
+ (let* ((name (ly:font-filename font))
+ (magnify (ly:font-magnification font))
+ (coding-alist (ly:font-encoding-alist font))
+ (input-encoding (assoc-get 'input-name coding-alist))
+ (font-encoding (assoc-get 'output-name coding-alist))
+ (coding-command (if (null? override-coding)
+ (if (equal? input-encoding font-encoding)
+ #f font-encoding)
+ (car override-coding))))
+
+ ;; FIXME: now feta stuff has feta* input-encoding (again?)
+ ;;(format (current-error-port) "FONT: ~S, ~S\n" name font-encoding)
+ ;;(format (current-error-port) "INPUT: ~S\n" input-encoding)
+ (if (and coding-command (equal? (substring coding-command 0 4) "feta"))
+ (set! coding-command #f))
+
+ (string-append
+ "magfont" (string-encode-integer (hashq name 1000000))
+ "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))
+ (if (not coding-command) "" (string-append "e" coding-command)))))
(define (define-origin file line col) "")
(define (dot x y radius)
(string-append
" "
- (numbers->string
+ (ly:numbers->string
(list x y radius)) " draw_dot"))
(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"))
+ "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 (expression->string expr)
- (eval expr this-module))
-
(define (ez-ball ch letter-col ball-col)
(string-append
" (" ch ") "
- (numbers->string (list letter-col ball-col))
+ (ly: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))
+(define (filledbox breapth width depth height) ; FIXME : use draw_round_box
+ (string-append (ly:numbers->string (list breapth width depth height))
" draw_box"))
-(define (fontify name-mag-pair exp)
-
- (define (select-font name-mag-pair)
- (let ((c (assoc name-mag-pair font-name-alist)))
-
- (if c
- (string-append " " (cddr c) " ")
- (begin
- (ly:warn
- (format "Programming error: No such font: ~S" name-mag-pair))
-
- (display "FAILED\n" (current-error-port))
- (if #f ;(pair? name-mag-pair))
- (display (object-type (car name-mag-pair)) (current-error-port))
- (write name-mag-pair (current-error-port)))
- (if #f ; (pair? font-name-alist)
- (display
- (object-type (caaar font-name-alist)) (current-error-port))
- (write font-name-alist (current-error-port)))
-
- ;; (format #f "\n%FAILED: (select-font ~S)\n" name-mag-pair))
- ""))))
-
- (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"
- ))
-
+;; WTF is this in every backend?
(define (horizontal-line x1 x2 th)
- (draw-line th x1 0 x2 0))
+ (draw-line th x1 0 x2 0))
(define (lily-def key val)
(let ((prefix "lilypondpaper"))
(string-append "/" key " {" val "} bind def\n")
(string-append "/" key " (" val ") def\n"))))
-(define (make-title port)
- (if header-stencil
- (let ((x-ext (ly:stencil-get-extent header-stencil Y))
- (y-ext (ly:stencil-get-extent header-stencil X)))
- (display (start-system
- (/ (interval-length x-ext) OUTPUT-SCALE)
- (/ (interval-length y-ext) OUTPUT-SCALE))
- port)
- (output-stencil port (ly:stencil-get-expr header-stencil) '(0 . 0))
- (display (stop-system) port)))
- "")
-
(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)
- (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)
-
- ;; FIXME: customise/generate these
- (let* ((linewidth (ly:paper-get-number paper 'linewidth))
- (props (cons (acons 'linewidth linewidth '()) PROPS))
- (prefix "lilypond")
- (stencils '()))
-
- (define (scope-entry->string key var)
- (let ((val (variable-ref var)))
-
- (if (memq key fields)
- (header-to-file basename key val))
-
- (cond
- ((eq? key 'font)
- BARF
- (format (current-error-port) "PROPS:~S\n" val)
- (set! props (cons val props))
- "")
-
- ;; define strings, for /make-lilypond-title to pick up
- ((string? val) (ps-string-def prefix key val))
-
- ;; generate stencil from markup
- ((markup? val) (set! stencils
- (append
- stencils
- (list
- (interpret-markup paper props val))))
- "")
- ((number? val) (ps-number-def prefix key val))
- (else ""))))
-
- (define (output-scope scope)
- (apply string-append (module-map scope-entry->string scope)))
-
- (let ((s (string-append (apply string-append (map output-scope scopes)))))
- (set! header-stencil (stack-lines DOWN 0 BASELINE-SKIP stencils))
-
- ;; match systems, which are also aligned to center
- (ly:stencil-align-to! header-stencil Y CENTER)
-
- ;; trigger font load
- (ly:stencil-get-expr header-stencil)
- s)))
-
-;; 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))))))
+
(define (placebox x y s)
(string-append
- (ly:number->string x) " " (ly:number->string y) " {" s "} place-box\n"))
+ (ly:number->string x) " " (ly:number->string y) " { " s " } place-box\n"))
(define (polygon points blotdiameter)
(string-append
- " "
- (numbers->string points)
- (ly:number->string (/ (length points) 2))
+ (ly:numbers->string points) " "
+ (ly:number->string (/ (length points) 2)) " "
(ly:number->string blotdiameter)
" draw_polygon"))
(define (repeat-slash wid slope thick)
(string-append
- (numbers->string (list wid slope thick))
+ (ly:numbers->string (list wid slope thick))
" draw_repeat_slash"))
(define (round-filled-box x y width height blotdiam)
(string-append
- " "
- (numbers->string
+ (ly: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\n"))
-(define (stem breapth width depth height)
+(define (stem breapth width depth height) ; FIXME: use draw_round_box.
(string-append
- (numbers->string (list breapth width depth height))
+ (ly:numbers->string (list breapth width depth height))
" draw_box" ))
-(define (stop-last-system)
- (stop-system))
-
-(define (stop-system)
- "}\nstop-system\n")
-
(define (symmetric-x-triangle thick w h)
(string-append
- (numbers->string (list h w thick))
+ (ly:numbers->string (list h w thick))
" draw_symmetric_x_triangle"))
-(define (text s)
-;; (string-append "(" (escape-parentheses s) ") show "))
- (string-append "(" (ps-encoding s) ") show "))
-
-;; top-of-file, wtf?
-(define (top-of-file)
- (string-append
- (header (string-append "GNU LilyPond (" (lilypond-version) "), ")
- (strftime "%c" (localtime (current-time))))
- LATIN1-ENCODING-COMMANDS
- ;;; ugh
- (ps-string-def
- "lilypond" 'tagline
- (string-append "Engraved by LilyPond (" (lilypond-version) ")"))))
-
+(define (text font s)
+ (let*
+
+ (
+ ;; ugh, we should find a better way to
+ ;; extract the hsbw for /space from the font.
+
+ (space-length (cdar (ly:text-dimension font "t")))
+ (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 (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)
- " "
+ (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 "))
+ " draw_zigzag_line"))
projects / lilypond.git / blobdiff