-;;;; 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))
-
-
-
-;;; Lily output interface --- cleanup and docme
-
-;; TODO: fucks up if outputting strings with parentheses.
-
-;; Module entry
-(define-public (ps-output-expression expr port)
- (display (eval expr this-module) port))
-
-
-;; Global vars
-
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define font-name-alist '())
-
-
-;; Interface functions
+(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
+ define-origin
+ no-origin
+ start-page
+ stop-page
+ ))
+
+(use-modules (guile)
+ (ice-9 regex)
+ (srfi srfi-1)
+ (srfi srfi-13)
+ (lily))
+
+;;; Global vars
+(define page-count 0)
+(define page-number 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))))
+
+(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")))
+
+(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 (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 " ))
-
+ (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 lily-traced-cm-fonts
- (map symbol->string
- '(cmbx14
- cmbx17
- cmbxti12
- cmbxti14
- cmbxti7
- cmbxti8
- cmcsc12
- cmcsc7
- cmtt17)))
-
-(define (define-fonts internal-external-name-mag-pairs)
+;; FIXME -- now that we can have ENCODING == #f, this can be
+;; simplified, esp OVERRIDE-CODING-COMMAND
+(define (font-command font . override-coding-command)
+ (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 (not (null? override-coding-command))
+ (car override-coding-command)
+ (if font-encoding
+ (get-coding-command font-encoding)
+ #f))))
+
+ (string-append
+ "magfont" (string-encode-integer (hashq name 1000000))
+ "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))
+ (if (or (not font-encoding) (equal? input-encoding font-encoding)) ""
+ (string-append "e" coding-command)))))
+
+(define (define-fonts paper font-list)
- (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)))
- (string-upcase name))
- ((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)))
-
+ (define (define-font command fontname scaling)
(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))
+ "/" command " { /" fontname " findfont "
+ (ly:number->string scaling) " output-scale div scalefont } bind def\n"))
+
+ (define (reencode-font plain encoding command)
+ (let ((coding-vector (get-coding-command encoding)))
+ (string-append
+ plain " " coding-vector " /" command " reencode-font\n"
+ "/" command "{ /" command " findfont 1 scalefont } bind def\n")))
+
+ (define (guess-ps-fontname basename)
+ "We do not have the FontName, try to guess is from basename."
+ (cond
+ ((tex-font? basename)
+ ;; FIXME: we need proper Fontmap for the bluesky CM*, EC* fonts.
+ ;; Only the fonts that we trace in mf/ are in our own FontMap.
+ (string-append basename ".pfb"))
+ (else (string-append basename ".pfa"))
+ ))
+
+ (define (font-load-command paper font)
+ (let* ((specced-font-name (ly:font-name font))
+ (fontname (if specced-font-name
+ specced-font-name
+ (guess-ps-fontname (ly:font-filename font))))
+
+ (coding-alist (ly:font-encoding-alist font))
+ (input-encoding (assoc-get 'input-name coding-alist))
+ (font-encoding (assoc-get 'output-name coding-alist))
+ (command (font-command font))
+ ;; FIXME -- see (font-command )
+ (plain (if font-encoding
+ (font-command font . (get-coding-command font-encoding))
+ command))
+ (designsize (ly:font-design-size font))
+ (magnification (* (ly:font-magnification font)))
+ (ops (ly:paper-lookup paper 'outputscale))
+ (scaling (* ops magnification designsize)))
+
+ (string-append
+ (define-font plain fontname scaling)
+ (if (or (equal? input-encoding font-encoding)
+ ;; guh
+ (equal? font-encoding "fetaBraces")
+ (equal? font-encoding "fetaNumber")
+ (equal? font-encoding "fetaMusic")
+ (equal? font-encoding "parmesanMusic"))
+ ""
+ (reencode-font plain input-encoding command)))))
+
+ (define (font-load-encoding encoding)
+ (let ((filename (get-coding-filename encoding)))
+ (ly:kpathsea-gulp-file filename)))
+
+ (let* ((encoding-list (map (lambda (x)
+ (assoc-get 'input-name
+ (ly:font-encoding-alist x)))
+ font-list))
+ (encodings (uniq-list (sort-list (filter string? encoding-list)
+ string<?))))
- (apply string-append
- (map (lambda (x) (font-load-command (car x) (cdr x)))
- (map cdr font-name-alist))))
+ (string-append
+ (apply string-append (map font-load-encoding encodings))
+ (apply string-append
+ (map (lambda (x) (font-load-command paper x)) font-list)))))
(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 (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 (polygon points blotdiameter)
- (string-append
- " "
- (numbers->string points)
- (ly:number->string (/ (length points) 2))
- (ly:number->string blotdiameter)
- " draw_polygon"))
+ "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))
+ (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))
+ (string-append (ly:numbers->string (list breapth width depth height))
" draw_box"))
-(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 (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) " "))))
-
- (string-append (select-font name-mag-pair) exp))
-
-(define (header creator generate)
+(define (header creator time-stamp paper page-count- classic?)
+ (set! page-count page-count-)
+ (set! page-number 0)
(string-append
"%!PS-Adobe-3.0\n"
- "%%Creator: " creator generate "\n"))
+ "%%Creator: " creator " " time-stamp "\n"
+ "%%Pages: " (number->string page-count) "\n"
+ "%%PageOrder: Ascend\n"
+ "%%DocumentPaperSizes: " (ly:paper-lookup paper 'papersize) "\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
- ;; 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"
- ))
+ (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"))
(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))))))
+
(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)
+(define (start-system origin dim)
(string-append
- "\n" (ly:number->string height)
- " start-system\n"
+ "\n" (ly:number-pair->string origin) " start-system\n"
"{\n"
- "set-ps-scale-to-lily-scale"))
+ "set-ps-scale-to-lily-scale\n"))
(define (stem breapth width depth height)
(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 last?)
+ "} stop-system\n")
-(define (stop-system)
- "}\nstop-system\n")
+(define (symmetric-x-triangle thick w h)
+ (string-append
+ (ly:numbers->string (list h w thick))
+ " draw_symmetric_x_triangle"))
-(define (text s)
- (string-append "(" s ") show "))
+(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
+ (font-command font) " setfont "
+ (string-join (reverse commands)))
+ ))
+
(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)))))
-
-(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 (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 (output-scopes scopes fields basename)
- (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
- ((string? val)
- (ps-string-def "lilypond" sym val))
-
- ((number? val)
- (ps-number-def "lilypond" sym
- (if (integer? val)
- (number->string val)
- (number->string (exact->inexact val)))))
- (else ""))))
- scope)))
-
- (apply string-append
- (map output-scope scopes)) )
+(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"))
projects / lilypond.git / blobdiff