X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=8af5b3fa3dd47d1164f2148fd51e90236a7ffcdd;hb=87eedcd59f4082cb0841528ad5bc82cb1d1191e3;hp=6183c2899556bf0030eead7bbeeccbf986f4830d;hpb=38189e6a227753ee6dca31aac448d97071a8551d;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index 6183c28995..8af5b3fa3d 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -2,8 +2,8 @@
 ;;;;
 ;;;;  source file of the GNU LilyPond music typesetter
 ;;;; 
-;;;; (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;;                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;;                 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 ;;;; Note: currently misused as testbed for titles with markup, see
 ;;;;       input/test/title-markup.ly
@@ -18,33 +18,27 @@
 
   ;; JUNK this -- see lily.scm: ly:all-output-backend-commands
   #:export (unknown
-	    blank
+	    bezier-sandwich
+	    char
 	    circle
-	    dot
-	    white-dot
-	    beam
-	    bracket
+	    comment
+	    dashed-line
 	    dashed-slur
-	    char
-	    setcolor
-	    resetcolor
+	    dot
+	    draw-line
+	    embedded-ps
 	    named-glyph
-	    dashed-line
-	    zigzag-line
-	    ez-ball
-	    comment
-	    repeat-slash
+	    no-origin
 	    placebox
-	    bezier-sandwich
-	    horizontal-line
-	    embedded-ps
-	    filledbox
+	    polygon
+	    repeat-slash
+	    resetcolor
+	    resetrotation
 	    round-filled-box
+	    setcolor
+	    setrotation
 	    text
-	    white-text
-	    polygon
-	    draw-line
-	    no-origin))
+	    zigzag-line))
 
 
 (use-modules (guile)
@@ -54,226 +48,238 @@
 	     (scm framework-ps)
 	     (lily))
 
+;;; helper functions, not part of output interface
+;;;
 
-;;(map export
-;;   (append (ly:all-stencil-expressions) (ly:all-output-backend-commands)))
-
-;; huh?
-;;(write (ly:all-output-backend-commands))
-;;(write (ly:all-stencil-expressions))
 
+;; ice-9 format uses a lot of memory
+;; using simple-format almost halves lilypond cell usage
+(define format simple-format)
 
-;;; 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))
+(define (str4 num)
+  (if (or (nan? num) (inf? num))
+      (begin
+	(ly:warning (_ "Found infinity or nan in output. Substituting 0.0"))
+	(if (ly:get-option 'strict-infinity-checking)
+	    (exit 1))
+	"0.0")
+      (ly:number->string num)))
+
+(define (number-pair->string4 numpair)
+  (string-append (str4 (car numpair))
+		 " "
+		 (str4 (cdr numpair))))
+
+(define (numbers->string4 numlist)
+  (string-join (map str4 numlist) " "))
 
 ;; FIXME: lily-def
 (define-public (ps-string-def prefix key val)
-  (string-append "/" prefix (symbol->string key) " ("
-		 (escape-parentheses val)
-		 ") def\n"))
-
+  (format #f "/ ~a~a (~a) def\n"
+	  prefix
+	  (symbol->string key)
+	  (escape-parentheses val)))
 
 (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")))
+    (format #f "/~a~a ~a def\n"
+	    prefix
+	    (symbol->string key) s)))
 
 
 ;;;
 ;;; Lily output interface, PostScript implementation --- cleanup and docme
 ;;;
 
-;;; Output-interface functions
-(define (beam width slope thick blot)
-  (string-append
-   (ly:numbers->string (list slope width thick blot)) " draw_beam" ))
-
 ;; two beziers
 (define (bezier-sandwich lst thick)
-  (string-append 
-   (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
-   (ly:numbers->string
-    (list arch_angle arch_width arch_height height arch_thick thick))
-   " draw_bracket"))
+  (format #f "~a ~a draw_bezier_sandwich" 
+	  (string-join (map number-pair->string4 lst) " ")
+	  (str4 thick)))
+
+(define (char font i)
+  (format #f "~a (\\~a) show"
+   (ps-font-command font)
+   (ly:inexact->string i 8)))
 
 (define (circle radius thick fill)
-  (format
-   "~a ~a ~a draw_circle" radius thick
+  (format #f
+   "~a ~a ~a draw_circle"
    (if fill
-       "true "
-       "false ")
+     "true"
+     "false")
+   (str4 radius) (str4 thick)))
+
+(define (dashed-line thick on off dx dy phase)
+  (format #f "~a ~a ~a [ ~a ~a ] ~a draw_dashed_line"
+   (str4 dx)
+   (str4 dy)
+   (str4 thick)
+   (str4 on)
+   (str4 off)
+   (str4 phase)
+   
    ))
 
-(define (char font i)
-  (string-append 
-   (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 thick)
-   " [ "
-   (ly:number->string on) " "
-   (ly:number->string off)
-   " ] 0 draw_dashed_line"))
-
 ;; what the heck is this interface ?
 (define (dashed-slur thick on off l)
-  (string-append 
-   (string-join (map ly:number-pair->string l) " ")
-   " "
-   (ly:number->string thick) 
-   " [ "
-   (ly:number->string on)
-   " "   
-   (ly:number->string off)
-   " ] 0 draw_dashed_slur"))
+  (format #f "~a ~a [ ~a ~a ] 0 draw_dashed_slur"
+	  (let ((control-points (append (cddr l) (list (car l) (cadr l)))))
+	    (string-join (map number-pair->string4 control-points) " "))
+	  (str4 thick)
+	  (str4 on)
+	  (str4 off)))
 
 (define (dot x y radius)
-  (string-append
-   " "
-   (ly:numbers->string
-    (list x y radius)) " draw_dot"))
+  (format #f " ~a draw_dot"
+   (numbers->string4 (list radius x y))))
 
 (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"))
+  (format #f "~a ~a ~a ~a ~a draw_line"
+	  (str4 (- x2 x1))
+	  (str4 (- y2 y1))
+	  (str4 x1)
+	  (str4 y1)
+	  (str4 thick)))
 
 (define (embedded-ps string)
   string)
 
-;; FIXME. 
-(define (ez-ball ch letter-col ball-col)
-  (string-append
-   " (" ch ") "
-   (ly:numbers->string (list letter-col ball-col))
-   ;; FIXME: barf
-   " /Helvetica-Bold "
-   " draw_ez_ball"))
-
-;; FIXME: use draw_round_box
-(define (filledbox breapth width depth height)
-  (string-append (ly:numbers->string (list breapth width depth height))
-		 " draw_box"))
-
-(define (glyph-string
-	 postscript-font-name
-	 size
-	 x-y-named-glyphs)
-  (format #f "gsave 1 output-scale div 1 output-scale div scale
-  /~a findfont ~a scalefont setfont\n~a grestore" postscript-font-name size
-  (apply
-   string-append
-   (map (lambda  (item)
-	  (let
-	      ((x (car item))
-		(y (cadr item))
-		(g (caddr item)))
-
-	    (if (and (= 0.0 x)
-		     (= 0.0 y))
-		(format #f " /~a glyphshow\n" g)
-		(format #f " ~a ~a rmoveto /~a glyphshow\n"
-			x y g))))
-	x-y-named-glyphs))
-  ))
+(define (glyph-string postscript-font-name
+		      size
+		      cid?
+		      w-x-y-named-glyphs)
+
+  (define (glyph-spec w x y g)
+    (let ((prefix (if (string? g) "/" "")))
+      (format #f "~a ~a ~a~a"
+	      (str4 (+ w x))
+	      (str4 y)
+	      prefix g)))
+  
+  (format #f
+	  (if cid?
+"/~a /CIDFont findresource ~a output-scale div scalefont setfont
+~a
+~a print_glyphs"
+
+"/~a ~a output-scale div selectfont
+~a
+~a print_glyphs")
+	  postscript-font-name
+	  size
+	  (string-join (map (lambda (x) (apply glyph-spec x))
+			    (reverse w-x-y-named-glyphs)) "\n")
+	  (length 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)))
-	 (location (if (ly:input-location? music-origin)
-		       (ly:input-file-line-column music-origin)
-		       #f
-		       ))
-	 (file (if location (string-append (getcwd) "/" (car location))
-		   #f))
-	 (x-ext (ly:grob-extent grob grob X)) 
-	 (y-ext (ly:grob-extent grob grob Y)) 
-	 )
-
-    (if (and location
-	     (< 0 (interval-length x-ext))
-	     (< 0 (interval-length y-ext)))
-	
-	(format "~a ~a ~a ~a (textedit://~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))
-		file
-		(cadr location)
-		(caddr location))
-	"")))
-
-;; WTF is this in every backend?
-(define (horizontal-line x1 x2 th)
-  (draw-line th x1 0 x2 0))
+	 (music-origin (if (ly:stream-event? cause)
+			   (ly:event-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 #f "~a ~a ~a ~a (textedit://~a:~a:~a:~a) mark_URI\n"
+		      (str4 (+ (car offset) (car x-ext)))
+		      (str4 (+ (cdr offset) (car y-ext)))
+		      (str4 (+ (car offset) (cdr x-ext)))
+		      (str4 (+ (cdr offset) (cdr y-ext)))
+
+		      ;; TODO
+		      ;;full escaping.
+
+		      ;; backslash is interpreted by GS.
+		      (ly:string-substitute "\\" "/" 
+					    (ly:string-substitute " " "%20" file))
+		      (cadr location)
+		      (caddr location)
+		      (cadddr location))
+	      "")))))
 
 (define (lily-def key val)
   (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"))))
+	  (substring key 0 (min (string-length prefix) (string-length key)))
+	  prefix)
+      (format "/~a { ~a } bind def\n" key val)
+      (format "/~a (~a) def\n" key val))))
 
 (define (named-glyph font glyph)
-  (string-append 
-   (ps-font-command font) " setfont " 
-   "/" glyph " glyphshow "))
+  (format #f "~a /~a glyphshow " ;;Why is there a space at the end?
+	  (ps-font-command font)
+	  glyph))
 
 (define (no-origin)
   "")
 
 (define (placebox x y s) 
-  (string-append 
-   (ly:number->string x) " " (ly:number->string y) " { " s " } place-box\n"))
+  (format #f
+"~a ~a moveto
+~a\n"
+  (str4 x)
+  (str4 y)
+  s))
+
+(define (polygon points blot-diameter filled?)
+  (format #f "~a ~a ~a ~a draw_polygon"
+	  (if filled? "true" "false")
+	  (numbers->string4 points)
+	  (number->string (- (/ (length points) 2) 1))
+	  (str4 blot-diameter)))
+
+(define (repeat-slash width slope beam-thickness)
+  (define (euclidean-length x y)
+    (sqrt (+ (* x x) (* y y))))
+
+  (let ((x-width (euclidean-length beam-thickness (/ beam-thickness slope)))
+	(height (* width slope)))
+    (format #f "~a draw_repeat_slash"
+	    (numbers->string4 (list x-width width height)))))
+
+
+(define (round-filled-box left right bottom top blotdiam)
+  (let* ((halfblot (/ blotdiam 2))
+	 (x (- halfblot left))
+	 (width (- right (+ halfblot x)))
+	 (y (- halfblot bottom))
+	 (height (- top (+ halfblot y))))
+    (format #f "~a draw_round_box"
+	    (numbers->string4
+	      (list width height x y blotdiam)))))
 
-(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
-   (ly:numbers->string (list wid slope thick))
-   " draw_repeat_slash"))
+;; save current color on stack and set new color
+(define (setcolor r g b)
+  (format #f "gsave ~a setrgbcolor\n"
+	  (numbers->string4 (list r g b))))
 
 ;; restore color from stack
-(define (resetcolor)
-  (string-append "setrgbcolor\n"))
+(define (resetcolor) "grestore \n")
 
-(define (round-filled-box x y width height blotdiam)
-  (string-append
-   (ly:numbers->string
-    (list x y width height blotdiam)) " draw_round_box"))
+;; rotation around given point
+(define (setrotation ang x y)
+  (format #f "gsave ~a translate ~a rotate ~a translate\n"
+    (numbers->string4 (list x y))
+    (number->string ang)
+    (numbers->string4 (list (* -1 x) (* -1 y)))))
+
+(define (resetrotation ang x y)
+  "grestore  ")
 
-;; 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"))
@@ -281,11 +287,12 @@
   
   (let* ((space-length (cdar (ly:text-dimension font " ")))
 	 (space-move (string-append (number->string space-length)
+				    ;; how much precision do we need here?
 				    " 0.0 rmoveto "))
 	 (out-vec (decode-byte-string s)))
 
     (string-append
-     (ps-font-command font) " setfont "
+     (ps-font-command font) " "
      (string-join
       (vector->list
        (vector-for-each
@@ -300,37 +307,52 @@
   "\n unknown\n")
 
 (define (url-link url x y)
-  (format "~a ~a ~a ~a (~a) mark_URI"
+  (format #f "~a ~a ~a ~a (~a) mark_URI"
 	  (car x)
 	  (car y)
 	  (cdr x)
 	  (cdr y)
 	  url))
 
-(define (utf8-string pango-font-description string)
-  (ly:warning (_ "utf8-string encountered in PS backend")))
+(define (utf-8-string pango-font-description string)
+  (ly:warning (_ "utf-8-string encountered in PS backend")))
 
-(define (white-dot x y radius)
-  (string-append
-   " "
-   (ly:numbers->string
-    (list x y radius)) " draw_white_dot"))
-
-(define (white-text scale s)
-  (let ((mystring (string-append
-		   "(" s  ") " (number->string scale)
-		   " /Helvetica-Bold "
-		   " draw_white_text")))
-    mystring
-    ))
 
 (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"))
+  (format #f "~a ~a ~a ~a 0 0 ~a ~a draw_zigzag_line"
+   (if centre? "true" "false")
+   (str4 zzw)
+   (str4 zzh)
+   (str4 thick)
+   (str4 dx)
+   (str4 dy)))
+
+
+(define (path thickness exps)
+  (define (convert-path-exps exps)
+    (if (pair? exps)
+	(let*
+	    ((head (car exps))
+	     (rest (cdr exps))
+	     (arity 
+	      (cond
+	       ((memq head '(rmoveto rlineto lineto moveto)) 2)
+	       ((memq head '(rcurveto curveto)) 6)
+	       (else 1)))
+	     (args (take rest arity))
+	     )
+
+	  ;; WARNING: this is a vulnerability: a user can output arbitrary PS code here.
+	  (cons (format #f
+			"~a ~a "
+			(string-join (map (lambda (x) (format #f "~a " x)) args) " ")
+			head)
+		(convert-path-exps (drop rest arity))))
+	'()))
+    
+    
+  (format #f
+   "1 setlinecap ~a setlinewidth\n~a stroke"
+   thickness
+   (string-join (convert-path-exps exps) " ")))
+