-;;; ps.scm -- implement Scheme output routines for PostScript
-;;;
-;;; source file of the GNU LilyPond music typesetter
-;;;
-;;; (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
-;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; ps.scm -- implement Scheme output routines for PostScript
+;;;;
+;;;; source file of the GNU LilyPond music typesetter
+;;;;
+;;;; (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
-(define (ps-scm action-name)
+(debug-enable 'backtrace)
- ;; alist containing fontname -> fontcommand assoc (both strings)
- (define font-alist '())
- (define font-count 0)
- (define current-font "")
-
- (define (cached-fontname i)
- (string-append
- "lilyfont"
- (make-string 1 (integer->char (+ 65 i)))))
-
+(define-module (scm ps))
+(define this-module (current-module))
- (define (select-font name-mag-pair)
- (let*
- (
- (c (assoc name-mag-pair font-name-alist))
- )
+(use-modules
+ (guile)
+ (lily))
- (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))
- ))
-
- "") ; issue no command
- (string-append " " (cddr c) " "))
- ))
- (define (font-load-command name-mag command)
- (string-append
- "/" command
- " { /"
- (car name-mag)
- " findfont "
- "12 " (ly-number->string (cdr name-mag)) " mul "
- "lilypondpaperoutputscale div scalefont setfont } bind def "
- "\n"))
+;;; Lily output interface --- cleanup and docme
- (define (beam width slope thick)
- (string-append
- (numbers->string (list width slope thick)) " draw_beam" ))
- (define (comment s)
- (string-append "% " s))
- (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" ))
+;; Module entry
+(define-public (ps-output-expression expr port)
+ (display (eval expr this-module) port))
- (define (char i)
- (invoke-char " show" i))
+;; Global vars
- (define (hairpin thick width starth endh )
- (string-append
- (numbers->string (list width starth endh thick))
- " draw_hairpin"))
-
- ;; what the heck is this interface ?
- (define (dashed-slur thick dash l)
- (string-append
- (apply string-append (map control->string l))
- (ly-number->string thick)
- " [ "
- (ly-number->string dash)
- " "
- (ly-number->string (* 10 thick)) ;UGH. 10 ?
- " ] 0 draw_dashed_slur"))
-
- (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 (repeat-slash wid slope thick)
- (string-append (numbers->string (list wid slope thick))
- " draw_repeat_slash"))
-
- (define (end-output)
- "\nend-lilypond-output\n")
-
- (define (experimental-on) "")
-
- (define (filledbox breapth width depth height)
- (string-append (numbers->string (list breapth width depth height))
- " draw-box" ))
+;; alist containing fontname -> fontcommand assoc (both strings)
+(define font-name-alist '())
- ;; obsolete?
- (define (font-def i s)
- (string-append
- "\n/" (font i) " {/"
- (substring s 0 (- (string-length s) 4))
- " findfont 12 scalefont setfont} bind def \n"))
- (define (font-switch i)
- (string-append (font i) " "))
+;; Interface functions
+(define (beam width slope thick)
+ (string-append
+ (numbers->string (list slope width thick)) " draw_beam" ))
- (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} "
- (ly-gulp-file "music-drawing-routines.ps")
- "{ exch pop //systemdict /run get exec } "
- ))
+;; two beziers with round endings
+(define (bezier-bow l thick)
- (define (lily-def key val)
-
- (if (string=? (substring key 0 (min (string-length "lilypondpaper") (string-length key))) "lilypondpaper")
- (string-append "/" key " {" val "} bind def\n")
- (string-append "/" key " (" val ") def\n")
- )
- )
-
- (define (header creator generate)
- (string-append
- "%!PS-Adobe-3.0\n"
- "%%Creator: " creator generate "\n"))
+ (define (bezier-ending z0 z1 z2)
+ (let ((x0 (car z0))
+ (y0 (cdr z0))
+ (x1 (car z1))
+ (y1 (cdr z1))
+ (x2 (car z2))
+ (y2 (cdr z2)))
+ (string-append
+ " "
+ (numbers->string
+ (list x0 y0
+ (/ (sqrt (+ (* (- x1 x2) (- x1 x2)) (* (- y1 y2) (- y1 y2)))) 2)))
+ " draw_dot")))
- (define (invoke-char s i)
- (string-append
- "(\\" (inexact->string i 8) ") " s " " ))
+ (string-append
+ (apply string-append (map number-pair->string l))
+ (ly:number->string thick)
+ " draw_bezier_sandwich "
+ (bezier-ending (list-ref l 3) (list-ref l 0) (list-ref l 5))
+ (bezier-ending (list-ref l 7) (list-ref l 0) (list-ref l 5))))
+
+;; 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 (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"))
+
+;; 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 (define-fonts internal-external-name-mag-pairs)
- (define (invoke-dim1 s d)
+ (define (font-load-command name-mag command)
+
+ (define (possibly-capitalize-font-name name)
+ (if (equal? (substring name 0 2) "cm")
+ (string-upcase name)
+ name))
+
(string-append
- (ly-number->string (* d (/ 72.27 72))) " " s ))
-
- (define (placebox x y s)
- (string-append
- (ly-number->string x) " " (ly-number->string y) " {" s "} place-box\n"))
+ "/" 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 (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 "))
+
+(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 ") "
+ (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 (fontify name-mag-pair exp)
- (define (bezier-sandwich l thick)
- (string-append
- (apply string-append (map control->string l))
- (ly-number->string thick)
- " draw_bezier_sandwich"))
-
-; TODO: use HEIGHT argument
- (define (start-line height)
- (string-append
- "\n"
- (ly-number->string height)
- " start-line {
-lilypondpaperoutputscale lilypondpaperoutputscale scale
-"))
+ (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) " "))))
- (define (stem breapth width depth height)
- (string-append (numbers->string (list breapth width depth height))
- " draw-box" ))
-
- (define (stop-line)
- "}\nstop-line\n")
-
- (define (text s)
- (string-append "(" s ") show "))
-
-
- (define (volta h w thick vert_start vert_end)
- (string-append
- (numbers->string (list h w thick (inexact->exact vert_start) (inexact->exact vert_end)))
- " draw_volta"))
-
- (define (tuplet ht gap dx dy thick dir)
- (string-append
- (numbers->string (list ht gap dx dy thick (inexact->exact dir)))
- " draw_tuplet"))
-
-
- (define (unknown)
- "\n unknown\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 (define-origin a b c ) "")
- (define (no-origin) "")
+ (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} "
+ (ly:gulp-file "music-drawing-routines.ps")
+ "{ exch pop //systemdict /run get exec } "
+ ;; 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) "")
- ;; PS
- (cond ((eq? action-name 'all-definitions)
- `(begin
- (define beam ,beam)
- (define tuplet ,tuplet)
- (define bracket ,bracket)
- (define char ,char)
- (define hairpin ,hairpin)
- (define volta ,volta)
- (define bezier-sandwich ,bezier-sandwich)
- (define dashed-line ,dashed-line)
- (define dashed-slur ,dashed-slur)
- (define end-output ,end-output)
- (define experimental-on ,experimental-on)
- (define filledbox ,filledbox)
- (define font-def ,font-def)
- (define font-switch ,font-switch)
- (define header-end ,header-end)
- (define lily-def ,lily-def)
- (define font-load-command ,font-load-command)
- (define header ,header)
- (define invoke-char ,invoke-char)
- (define invoke-dim1 ,invoke-dim1)
- (define placebox ,placebox)
- (define select-font ,select-font)
- (define start-line ,start-line)
- (define stem ,stem)
- (define stop-line ,stop-line)
- (define stop-last-line ,stop-line)
- (define repeat-slash ,repeat-slash)
- (define text ,text)
- (define no-origin ,no-origin)
- (define define-origin ,define-origin)
- (define ez-ball ,ez-ball)
- ))
- ((eq? action-name 'repeat-slash) repeat-slash)
- ((eq? action-name 'tuplet) tuplet)
- ((eq? action-name 'beam) beam)
- ((eq? action-name 'bezier-sandwich) bezier-sandwich)
- ((eq? action-name 'bracket) bracket)
- ((eq? action-name 'char) char)
- ((eq? action-name 'dashed-line) dashed-line)
- ((eq? action-name 'dashed-slur) dashed-slur)
- ((eq? action-name 'hairpin) hairpin)
- ((eq? action-name 'experimental-on) experimental-on)
- ((eq? action-name 'filledbox) filledbox)
- ((eq? action-name 'ez-ball) ez-ball)
- ((eq? action-name 'select-font) select-font)
- ((eq? action-name 'volta) volta)
- (else (error "unknown tag -- PS-SCM " action-name))
- )
- )
-
-(define (scm-ps-output)
- (ly-eval (ps-scm 'all-definitions)))
+(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 (roundfilledbox x y width height blotdiam)
+ (string-append
+ " "
+ (numbers->string
+ (list x y width height blotdiam)) " draw_round_box"))
+
+;; TODO: use HEIGHT argument
+(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))
+
+(define (stop-system)
+ "}\nstop-system\n")
+
+(define (text s)
+ (string-append "(" s ") show "))
+
+(define (unknown)
+ "\n unknown\n")
+
projects / lilypond.git / blobdiff