-;;;; 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:
+;;;; * %% Papersize in (header ...)
+;;;; * text setting, kerning.
+;;;; * document output-interface
(debug-enable 'backtrace)
-(define-module (scm output-ps))
-(define this-module (current-module))
-
-(use-modules
- (guile)
- (ice-9 regex)
- (lily))
-
-
+(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
+ char
+ dashed-line
+ zigzag-line
+ ez-ball
+ comment
+ repeat-slash
+ placebox
+ bezier-sandwich
+ horizontal-line
+ embedded-ps
+ filledbox
+ round-filled-box
+ text
+ white-text
+ polygon
+ draw-line
+ no-origin
+ ))
+
+
+(use-modules (guile)
+ (ice-9 regex)
+ (srfi srfi-1)
+ (srfi srfi-13)
+ (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
+(define (escape-parentheses s)
+ (regexp-substitute/global #f "(^|[^\\])([\\(\\)])" s 'pre 1 "\\" 2 'post))
-;;; Lily output interface --- cleanup and docme
+(define (offset-add a b)
+ (cons (+ (car a) (car b))
+ (+ (cdr a) (cdr b))))
-;; TODO: fucks up if outputting strings with parentheses.
+(define (ps-encoding text)
+ (escape-parentheses text))
-;; Module entry
-(define-public (ps-output-expression expr port)
- (display (expression->string expr) port))
+;; FIXME: lily-def
+(define-public (ps-string-def prefix key val)
+ (string-append "/" prefix (symbol->string key) " ("
+ (escape-parentheses val)
+ ") def\n"))
-(define (expression->string expr)
- (eval expr this-module))
-;; Global vars
+(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")))
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define font-name-alist '())
+;;;
+;;; Lily output interface, PostScript implementation --- cleanup and docme
+;;;
-;; Interface functions
+;;; 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)
+(define (bezier-sandwich lst thick)
(string-append
- (apply string-append (map number-pair->string l))
+ (string-join (map ly:number-pair->string lst) " ")
+ " "
(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 (symmetric-x-triangle thick w h)
- (string-append
- (numbers->string (list h w thick))
- " draw_symmetric_x_triangle"))
-
-
-(define (char i)
+(define (char font i)
(string-append
- "(\\" (inexact->string i 8) ") show " ))
-
-
-(define (comment s)
- (string-append "% " s "\n"))
-
+ (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 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 lily-traced-cm-fonts
- (map symbol->string
- '(cmbx14
- cmbx17
- cmbxti12
- cmbxti14
- cmbxti6
- cmbxti7
- cmbxti8
- cmcsc12
- cmcsc7
- cmcsc8
- cmss5
- cmss6
- cmss7
- cmti5
- cmti6
- cmtt17
- cmtt5
- cmtt6
- cmtt7)))
-
-
-(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)))
-
- ;; huh, how is this supposed to work?
- ;;(string-upcase name)
-
- (string-append name ".pfb"))
-
- ((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)))
-
- ;;(format (current-error-port) "DEFINE-FONTS: ~S\n" internal-external-name-mag-pairs)
-
- (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))))
+; todo: merge with tex-font-command?
-(define (define-origin file line col) "")
+(define (embedded-ps string)
+ string)
(define (dot x y radius)
(string-append
" "
- (numbers->string
+ (ly:numbers->string
(list x y radius)) " draw_dot"))
-(define (zigzag-line centre? zzw zzh thick dx dy)
+(define (white-dot x y radius)
(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:numbers->string
+ (list x y radius)) " draw_white_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"))
-
-(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")
+ "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 (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"))
+;; WTF is this in every backend?
(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 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"
- ))
+ (draw-line th x1 0 x2 0))
(define (lily-def key val)
- (let ((prefix "lilypondpaper"))
+ (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"))))
-(define (no-origin) "")
-
+
(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
+ (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"
-
- ;; URG
- (if (pair? header-stencils)
- (let ((s (output-stencils header-stencils)))
- (set! header-stencils '())
- (string-append s (stop-system) (start-system width height)))
- "")))
-
-(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 (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 (text s)
- (string-append "(" s ") show "))
+(define (white-text scale s)
+ (let ((mystring (string-append "(" s ") " (number->string scale) " /Helvetica-bold "
+ " draw_white_text")))
+ mystring))
(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 (" (lilypond-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 paper scopes fields basename)
-
- ;; FIXME: customise/generate these
- (let ((props '((;;(linewidth . 120)
- (font-family . roman)
- (word-space . 1)
- (baseline-skip . 2)
- (font-series . medium)
- (font-style . roman)
- (font-shape . upright)
- (font-size . 0)))))
-
- (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
- ;; define strings, for /make-lilypond-title to pick up
- ((string? val) (ps-string-def "lilypond" sym val))
-
- ;; generate stencil from markup
- ((markup? val) (set! header-stencils
- (append header-stencils
- (list
- (ly:stencil-get-expr
- (interpret-markup paper props val)))))
-
- "")
- ((number? val) (ps-number-def
- "lilypond" sym (if (integer? val)
- (number->string val)
- (number->string
- (exact->inexact val)))))
- (else ""))))
- scope)))
+(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"))
- (string-append
- (apply string-append (map output-scope scopes)))))
-(define (offset-add a b)
- (cons (+ (car a) (car b))
- (+ (cdr a) (cdr b))))
+(define (grob-cause grob)
+ "")
-(define header-stencils '())
-
-(define (output-stencils lst)
- (apply string-append
- (map (lambda (x) (stencil->string x '(10 . -10))) lst)))
-
-;; hmm, looks like recursing call is always last statement, does guile
-;; think so too?
-(define (stencil->string expr o)
- (if (pair? expr)
- (let ((head (car expr)))
- (cond
- ((ly:input-location? head)
- (string-append (apply define-origin (ly:input-location head))
- (stencil->string (cadr expr) o)))
- ((eq? head 'no-origin)
- (string-append (expression->string head)
- (stencil->string (cadr expr) o)))
- ((eq? head 'translate-stencil)
- (stencil->string (caddr expr) (offset-add o (cadr expr))))
- ((eq? head 'combine-stencil)
- (string-append (stencil->string (cadr expr) o)
- (stencil->string (caddr expr) o)))
- (else
- (placebox (car o) (cdr o) (expression->string expr)))))
- ""))
+(define (no-origin)
+ "")
projects / lilypond.git / blobdiff