-;;;; ps.scm -- implement Scheme output routines for PostScript
+;;;; output-ps.scm -- implement Scheme output routines 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>
+;;;; Note: currently misused as testbed for titles with markup, see
+;;;; input/test/title-markup.ly
+;;;;
+;;;; TODO:
+;;;; * move makeTitle (input/test/title-markup.ly) out of user space, but
+;;;; * allow customisation of makeTitle markup.
+;;;; * makePieceTitle markup
+;;;; * page layout?
+;;;; * 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?
+;;;; * 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)
+ (srfi srfi-13)
(lily))
-;;; Lily output interface --- cleanup and docme
-;; TODO: fucks up if outputting strings with parentheses.
+;;; Lily output interface, PostScript implementation --- cleanup and docme
-;; Module entry
+;;; Output interface entry
(define-public (ps-output-expression expr port)
- (display (eval expr this-module) port))
-
-
-;; Global vars
+ (display (expression->string expr) port))
+;;; Global vars
;; alist containing fontname -> fontcommand assoc (both strings)
(define font-name-alist '())
-
-;; Interface functions
+;; /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))))
+
+;; WIP
+(define font-encoding-alist
+ '(("ecrm12" . "ISOLatin1Encoding")
+ ("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)
+ (number->string val)
+ (number->string (exact->inexact val)))))
+ (string-append "/" prefix (symbol->string key) " " s " def\n")))
+
+(define (tex-font? fontname)
+ (equal? (substring fontname 0 2) "cm"))
+
+;;; Output-interface functions
(define (beam width slope thick blot)
(string-append
(numbers->string (list slope width thick blot)) " draw_beam" ))
(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)
(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 (* 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)
+
+ (define (fontname->designsize fontname)
+ (let ((i (string-index fontname char-numeric?)))
+ (string->number (substring fontname i))))
- (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"))
+ "/" command " { /" fontname " findfont "
+ (ly:number->string scaling) " output-scale div 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 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))
+ (mangled (possibly-mangle-fontname fontname))
+ (encoding (assoc-get fontname font-encoding-alist))
+ (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))))
+
+ (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) "mangled ~S\n" mangled)
+ (format (current-error-port) "fontsize ~S\n" fontsize)
+ (format (current-error-port) "scaling ~S\n" scaling)))
+
+ (if encoding
+ ;; FIXME: should rather tag encoded font
+ (let ((raw (string-append command "-raw")))
+ (string-append
+ (define-font raw mangled scaling)
+ (reencode-font raw encoding command)))
+ (define-font command mangled scaling))))
+
(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))
+ (value (cdr name-mag-pair))
+ (fontname (car value))
+ (scaling (cdr value)))
+ (cons key (cons value
+ (string-append
+ "lilyfont" fontname "-" (number->string scaling))))))
- (apply string-append
- (map (lambda (x) (font-load-command (car x) (cdr x)))
- (map cdr font-name-alist))))
+ (set! font-name-alist
+ (map ps-encoded-fontswitch internal-external-name-mag-pairs))
+ (apply string-append (map font-load-command font-name-alist)))
(define (define-origin file line col) "")
(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
(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")
+(define (expression->string expr)
+ (eval expr this-module))
+
(define (ez-ball ch letter-col ball-col)
(string-append
" (" ch ") "
(string-append (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)
+ (let ((c (assoc name-mag-pair font-name-alist)))
+
+ (if c
+ (string-append " " (cddr c) " setfont ")
(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) " "))))
+ (ly:warn
+ (format "Programming error: No such font: ~S" name-mag-pair))
+ ""))))
(string-append (select-font name-mag-pair) exp))
(string-append
;; URG: now we can't use scm output without Lily
(ly:gulp-file "lilyponddefs.ps")
- " {exch pop //systemdict /run get exec} "
+ "{exch pop //systemdict /run get exec}\n\n"
(ly:gulp-file "music-drawing-routines.ps")
- "{ exch pop //systemdict /run get exec } "
+ "{ 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"
))
+(define (horizontal-line x1 x2 th)
+ (draw-line th x1 0 x2 0))
+
(define (lily-def key val)
(let ((prefix "lilypondpaper"))
(if (string=?
(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)
+ (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)
+ (let ((val (variable-ref var)))
+ (if (memq key fields)
+ (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"))
+(define (polygon points blotdiameter)
+ (string-append
+ " "
+ (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))
"\n" (ly:number->string height)
" 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
(define (stop-system)
"}\nstop-system\n")
-(define (text s)
- (string-append "(" s ") show "))
+(define (symmetric-x-triangle thick w h)
+ (string-append
+ (numbers->string (list h w thick))
+ " draw_symmetric_x_triangle"))
-(define (unknown)
- "\n unknown\n")
+(define (text s)
+;; (string-append "(" (escape-parentheses s) ") show "))
+ (string-append "(" (ps-encoding s) ") show "))
;; 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))))
-
+ (string-append
+ (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 (ps-string-def a b c)
- (string-append "/" a (symbol->string b) " (" c ") def\n"))
+(define (unknown)
+ "\n unknown\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)
+ "\n%start page\n")
+(define (stop-page last?)
+ "\n%showpage\n")
projects / lilypond.git / blobdiff