X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=ae0d93e306754708f7d717fe8069643ad3d4b560;hb=7c6313e6fa012a6bc6bbb6aefa0354e96f5ad7fe;hp=83172251903c3f20688c9349116519f359a156ab;hpb=5db3ac120f98d252d71f5e4380417fd45ed71086;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index 8317225190..ae0d93e306 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -1,90 +1,135 @@
-;;;; 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)
@@ -93,350 +138,139 @@
    (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)
+  "")