X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=67431321ff75d6958303da3e6f0c464560144ebb;hb=6dc25f04195169860be7f336031ed8baa98cdc40;hp=ba477c005533890d3c8a9a8acbfafc63d9b89130;hpb=537939d12b41820271a4e5506b8e786a66f676fc;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index ba477c0055..67431321ff 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -1,455 +1,286 @@
-;;;; 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>
+;;;; (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;;                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 
-
-(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 (expression->string expr) port))
-
-(define (expression->string expr)
-  (eval expr this-module))
-
-;; Global vars
-
-;; alist containing fontname -> fontcommand assoc (both strings)
-(define font-name-alist '())
-
-
-;; Interface functions
-(define (beam width slope thick blot)
-  (string-append
-   (numbers->string (list slope width thick blot)) " draw_beam" ))
+;;;; 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
+
+(define-module (scm output-ps)
+  #:re-export (quote)
+
+  ;; JUNK this -- see lily.scm: ly:all-output-backend-commands
+  #:export (unknown
+	    blank
+	    circle
+	    dot
+	    dashed-slur
+	    char
+	    setcolor
+	    resetcolor
+	    named-glyph
+	    dashed-line
+	    zigzag-line
+	    comment
+	    repeat-slash
+	    placebox
+	    bezier-sandwich
+	    embedded-ps
+	    round-filled-box
+	    text
+	    polygon
+	    draw-line
+	    no-origin))
+
+
+(use-modules (guile)
+	     (ice-9 regex)
+	     (srfi srfi-1)
+	     (srfi srfi-13)
+	     (scm framework-ps)
+	     (lily))
+
+;;; helper functions, not part of output interface
+(define (escape-parentheses s)
+  (regexp-substitute/global #f "(^|[^\\])([\\(\\)])" s 'pre 1 "\\" 2 'post))
+
+(define (ps-encoding text)
+  (escape-parentheses text))
+
+;; FIXME: lily-def
+(define-public (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")))
+
+
+;;;
+;;; Lily output interface, PostScript implementation --- cleanup and docme
+;;;
 
 ;; 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 "))
-
-(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 (symmetric-x-triangle thick w h)
-  (string-append
-   (numbers->string (list h w thick))
-   " draw_symmetric_x_triangle"))
+   " draw_bezier_sandwich"))
 
-
-(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 (circle radius thick fill)
+  (format
+   "~a ~a ~a draw_circle" radius thick
+   (if fill
+       "true "
+       "false ")))
 
 (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)
+(define (dashed-slur thick on off 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)
-   " "
-   ;;UGH.  10 ?
-   (ly:number->string (* 10 thick))
+   (ly:number->string on)
+   " "   
+   (ly:number->string off)
    " ] 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))))
-
-(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"))
-
-(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 (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"
-   ))
+   "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 (embedded-ps string)
+  string)
+
+
+(define (glyph-string
+	 postscript-font-name
+	 size cid?
+	 w-x-y-named-glyphs)
+
+  (format #f "gsave 
+  /~a ~a ~a output-scale div scalefont setfont\n~a grestore"
+	  postscript-font-name
+	  (if cid?
+	      " /CIDFont findresource "
+	      " findfont")
+	  size
+	  (apply
+	   string-append
+	   (map (lambda  (item)
+		  (let*
+		      ((w (car item))
+		       (x (cadr item))
+		       (y (caddr item))
+		       (g (cadddr item))
+		       (prefix (if  (string? g) "/" "")))
+
+		    (format #f " gsave ~a~a glyphshow grestore ~a ~a rmoveto \n" prefix g (+ w x) y)
+		    ))
+		w-x-y-named-glyphs))))
+
+(define (grob-cause offset grob)
+  (let* ((cause (ly:grob-property grob 'cause))
+	 (music-origin (if (ly:music? cause)
+			   (ly:music-property cause 'origin))))
+    (if (not (ly:input-location? music-origin))
+	""
+	(let* ((location (ly:input-file-line-char-column music-origin))
+	       (raw-file (car location))
+	       (file (if (is-absolute? raw-file)
+			 raw-file
+			 (string-append (ly-getcwd) "/" raw-file)))
+	       (x-ext (ly:grob-extent grob grob X))
+	       (y-ext (ly:grob-extent grob grob Y)))
+
+	  (if (and (< 0 (interval-length x-ext))
+		   (< 0 (interval-length y-ext)))
+	      (format "~a ~a ~a ~a (textedit://~a:~a:~a:~a) mark_URI\n"
+		      (+ (car offset) (car x-ext))
+		      (+ (cdr offset) (car y-ext))
+		      (+ (car offset) (cdr x-ext))
+		      (+ (cdr offset) (cdr y-ext))
+
+		      ;; TODO
+		      ;; full escaping.
+		      (string-regexp-substitute " " "%20" file)
+		      (cadr location)
+		      (caddr location)
+		      (cadddr location))
+	      "")))))
 
 (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 (named-glyph font glyph)
+  (string-append 
+   (ps-font-command font) " setfont " 
+   "/" glyph " glyphshow "))
+
+(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 filled?)
+  (string-append
+   (ly:numbers->string points) " "
+   (ly:number->string (/ (length points) 2)) " "
+   (ly:number->string blotdiameter)
+   (if filled? " true " " false ")
+   " 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
-     (list x y width height blotdiam)) " draw_round_box"))
+;; restore color from stack
+(define (resetcolor)
+  (string-append "setrgbcolor\n"))
 
-(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 (round-filled-box x y width height blotdiam)
   (string-append
-   (numbers->string (list breapth width depth height))
-   " draw_box" ))
-
-(define (stop-last-system)
-  (stop-system))
-
-(define (stop-system)
-  "}\nstop-system\n")
+   (ly:numbers->string
+    (list x y width height blotdiam)) " draw_round_box"))
+
+;; save current color on stack and set new color
+(define (setcolor r g b)
+  (string-append "currentrgbcolor "
+  (ly:numbers->string (list r g b))
+  " setrgbcolor\n"))
+
+(define (text font s)
+  ;; (ly:warning (_ "TEXT backend-command encountered in Pango backend"))
+  ;; (ly:warning (_ "Arguments: ~a ~a"" font str))
+  
+  (let* ((space-length (cdar (ly:text-dimension font " ")))
+	 (space-move (string-append (number->string space-length)
+				    " 0.0 rmoveto "))
+	 (out-vec (decode-byte-string s)))
 
-(define (text s)
-  (string-append "(" s ") show "))
+    (string-append
+     (ps-font-command font) " setfont "
+     (string-join
+      (vector->list
+       (vector-for-each
+	
+	(lambda (sym)
+	  (if (eq? sym 'space)
+	      space-move
+	      (string-append "/" (symbol->string sym) " glyphshow")))
+	out-vec))))))
 
 (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))
-
-	     ;; output markups ourselves
-	     ((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 (url-link url x y)
+  (format "~a ~a ~a ~a (~a) mark_URI"
+	  (car x)
+	  (car y)
+	  (cdr x)
+	  (cdr y)
+	  url))
 
-    (string-append
-     (apply string-append (map output-scope scopes)))))
-
-(define (add-offsets a b)
-  (cons (+ (car a) (car b))
-	(+ (cdr a) (cdr b))))
-
-(define (input? foe)
-  #f)
-
-(define header-stencils '())
-
-(define (output-stencils lst)
-  (apply string-append (map (lambda (x) (output-stencil x '(10 . -10))) lst)))
-
-;; TODO:
-;; de-urg me
-;; implement ly:input stuff
-;; replace C++ variant
-;; stencil->string?
-(define (output-stencil expr o)
-  (let ((s ""))
-    (while
-     (pair? expr)
-     (let ((head (car expr)))
-       (cond ((input? head)
-	      (set! s (string-append
-		       s (define-origin (ly:input-file-string head))))
-	      (set! expr (cadr expr)))
-	     ((eq? head 'no-origin)
-	      (set! s (string-append s (expression->string head)))
-	      (set! expr (cadr expr)))
-	     ((eq? head 'translate-stencil)
-	      (set! o (add-offsets o (cadr expr)))
-	      (set! expr (caddr expr)))
-	     ((eq? head 'combine-stencil)
-	      (set! s (string-append s (output-stencil (cadr expr) o)))
-	      (set! expr (caddr expr)))
-	     (else
-	      (set!
-	       s (string-append
-		  s
-		       (placebox (car o) (cdr o)
-				 (expression->string expr))))
-	      (set! expr #f)))))
-  s))
+(define (utf-8-string pango-font-description string)
+  (ly:warning (_ "utf-8-string encountered in PS backend")))
+
+
+
+(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"))