X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=ee1da5308e3be0a49254d3f108288b8f6ba6cd79;hb=d627f5aa2707c875d63d95685951402a49cbfa80;hp=dc20266a014d54749bfe9ca9a096944ad1150cf4;hpb=e58f03944cce661e4732af3e63aeb60edae97846;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index dc20266a01..ee1da5308e 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--2006 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;;                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; (c) 1998--2009 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
@@ -14,31 +14,7 @@
 ;;;;   * 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))
-
+  #:re-export (quote))
 
 (use-modules (guile)
 	     (ice-9 regex)
@@ -51,42 +27,20 @@
 ;;;
 
 
-(define (escape-parentheses s)
-  (regexp-substitute/global #f "(^|[^\\])([\\(\\)])" s 'pre 1 "\\" 2 'post))
-
-(define (ps-encoding text)
-  (escape-parentheses text))
-
-(define (round2 num)
-  (/ (round (* 100 num)) 100))
-
-(define (round4 num)
-  (/ (round (* 10000 num)) 10000))
+;; ice-9 format uses a lot of memory
+;; using simple-format almost halves lilypond cell usage
 
 (define (str4 num)
-  (format #f "~f" (round4 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)
-  (format #f "~f ~f" (round4 (car numpair)) (round4 (cdr numpair))))
-
-(define (numbers->string4 numlist)
-  (string-join (map str4 numlist) " "))
-
-;; FIXME: lily-def
-(define-public (ps-string-def prefix key val)
-  (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)))))
-    (format #f "/~a~a ~a def\n"
-	    prefix
-	    (symbol->string key) s)))
-
+  (ly:format "~4l" numpair)) 
 
 ;;;
 ;;; Lily output interface, PostScript implementation --- cleanup and docme
@@ -94,50 +48,56 @@
 
 ;; two beziers
 (define (bezier-sandwich lst thick)
-  (format #f "~a ~a draw_bezier_sandwich" 
-	  (string-join (map number-pair->string4 lst) " ")
-	  (str4 thick)))
+  (ly:format "~l ~4f draw_bezier_sandwich" 
+	     (map number-pair->string4 lst)
+	  thick))
 
 (define (char font i)
-  (format #f "~a (\\~a) show"
+  (ly:format "~a (\\~a) show"
    (ps-font-command font)
    (ly:inexact->string i 8)))
 
 (define (circle radius thick fill)
-  (format #f
-   "~a ~f ~f draw_circle"
+  (ly:format
+   "~a ~4f ~4f draw_circle"
    (if fill
      "true"
      "false")
-   (round4 radius) (round4 thick)))
+   radius thick))
 
-(define (dashed-line thick on off dx dy)
-  (format #f "~a ~a ~a [ ~a ~a ] 0 draw_dashed_line"
-   (str4 dx)
-   (str4 dy)
-   (str4 thick)
-   (str4 on)
-   (str4 off)))
+(define (dashed-line thick on off dx dy phase)
+  (ly:format "~4f ~4f ~4f [ ~4f ~4f ] ~4f draw_dashed_line"
+   dx
+   dy
+   thick
+   on
+   off
+   phase))
 
 ;; what the heck is this interface ?
 (define (dashed-slur thick on off l)
-  (format #f "~a ~a [ ~a ~a ] 0 draw_dashed_slur"
-	  (string-join (map number-pair->string4 l) " ")
-	  (str4 thick)
-	  (str4 on)
-	  (str4 off)))
+  (ly:format "~l ~4f [ ~4f ~4f ] 0 draw_dashed_slur"
+	  (let ((control-points (append (cddr l) (list (car l) (cadr l)))))
+	    (map number-pair->string4 control-points))
+	  thick
+	  on
+	  off))
 
 (define (dot x y radius)
-  (format #f " ~a draw_dot"
-   (numbers->string4 (list x y radius))))
+  (ly:format " ~4l draw_dot" (list radius x y)))
 
 (define (draw-line thick x1 y1 x2 y2)
-  (format #f "1 setlinecap 1 setlinejoin ~a setlinewidth ~a ~a moveto ~a ~a lineto stroke"
-   (str4 thick)
-   (str4 x1)
-   (str4 y1)
-   (str4 x2)
-   (str4 y2)))
+  (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
+	  (- x2 x1) (- y2 y1)
+	  x1 y1 thick))
+
+(define (ellipse x-radius y-radius thick fill)
+  (ly:format
+   "~a ~4f ~4f ~4f draw_ellipse"
+   (if fill
+     "true"
+     "false")
+   x-radius y-radius thick))
 
 (define (embedded-ps string)
   string)
@@ -149,23 +109,19 @@
 
   (define (glyph-spec w x y g)
     (let ((prefix (if (string? g) "/" "")))
-      (format #f "~f ~f ~a~a"
-	      (round2 (+ w x))
-	      (round2 y)
-	      prefix g)))
+      (ly:format "~4f ~4f ~4f ~a~a"
+		 w x y
+		 prefix g)))
   
-  (format #f
-	  (if cid?
-"gsave
-/~a /CIDFont findresource ~a output-scale div scalefont setfont
+  (ly:format 
+   (if cid?
+"/~a /CIDFont findresource ~a output-scale div scalefont setfont
 ~a
-~a print_glyphs
-grestore"
+~a print_glyphs"
 
-"gsave\n/~a ~a output-scale div selectfont
+"/~a ~a output-scale div selectfont
 ~a
-~a print_glyphs
-grestore")
+~a print_glyphs")
 	  postscript-font-name
 	  size
 	  (string-join (map (lambda (x) (apply glyph-spec x))
@@ -174,83 +130,77 @@ grestore")
 
 
 (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 #f "~$ ~$ ~$ ~$ (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.
-
-		      ;; backslash is interpreted by GS.
-		      (string-regexp-substitute "\\\\" "/" 
-				      (string-regexp-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)
-      (format "/~a { ~a } bind def\n" key val)
-      (format "/~a (~a) def\n" key val))))
+  (if (ly:get-option 'point-and-click)
+      (let* ((cause (ly:grob-property grob 'cause))
+	     (music-origin (if (ly:stream-event? cause)
+			       (ly:event-property cause 'origin))))
+	(if (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)))
+		  (ly:format "~4f ~4f ~4f ~4f (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.
+
+			     ;; backslash is interpreted by GS.
+			     (ly:string-substitute "\\" "/" 
+						   (ly:string-substitute " " "%20" file))
+			     (cadr location)
+			     (caddr location)
+			     (cadddr location))
+		  ""))
+	    ""))
+      ""))
 
 (define (named-glyph font glyph)
-  (format #f "~a /~a glyphshow " ;;Why is there a space at the end?
-	  (ps-font-command font)
-	  glyph))
+  (ly:format "~a /~a glyphshow " ;;Why is there a space at the end?
+	     (ps-font-command font)
+	     glyph))
 
 (define (no-origin)
   "")
 
-(define (placebox x y s) 
-  (format #f
-"gsave ~a ~a translate
-0 0 moveto
-~a
-grestore\n"
+(define (oval x-radius y-radius thick fill)
+  (ly:format
+   "~a ~4f ~4f ~4f draw_oval"
+   (if fill
+     "true"
+     "false")
+   x-radius y-radius thick))
 
-  (str4 x)
-  (str4 y)
-  s))
+(define (placebox x y s) 
+  (if (not (string-null? s))
+      (ly:format "~4f ~4f moveto ~a\n" x 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)))
+  (ly:format "~a ~4l ~a ~4f draw_polygon"
+	     (if filled? "true" "false")
+	     points
+	     (- (/ (length points) 2) 1)
+	     blot-diameter))
 
 (define (repeat-slash width slope beam-thickness)
   (define (euclidean-length x y)
     (sqrt (+ (* x x) (* y y))))
 
-  (let ((x-width (euclidean-length slope (/ beam-thickness slope)))
+  (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)))))
+    (ly:format "~4l draw_repeat_slash"
+	     (list x-width width height))))
 
-;; restore color from stack
-(define (resetcolor) "setrgbcolor\n")
 
 (define (round-filled-box left right bottom top blotdiam)
   (let* ((halfblot (/ blotdiam 2))
@@ -258,14 +208,27 @@ grestore\n"
 	 (width (- right (+ halfblot x)))
 	 (y (- halfblot bottom))
 	 (height (- top (+ halfblot y))))
-    (format #f "~a draw_round_box"
-	    (numbers->string4
-	      (list x y width height blotdiam)))))
+    (ly:format  "~4l draw_round_box"
+		(list width height x y blotdiam))))
 
 ;; save current color on stack and set new color
 (define (setcolor r g b)
-  (format #f "currentrgbcolor ~a setrgbcolor\n"
-	  (numbers->string4 (list r g b))))
+  (ly:format "gsave ~4l setrgbcolor\n"
+	      (list r g b)))
+
+;; restore color from stack
+(define (resetcolor) "grestore\n")
+
+;; rotation around given point
+(define (setrotation ang x y)
+  (ly:format "gsave ~4l translate ~a rotate ~4l translate\n"
+	     (list x y)
+	     ang
+	     (list (* -1 x) (* -1 y))))
+
+(define (resetrotation ang x y)
+  "grestore  ")
+
 
 (define (text font s)
   ;; (ly:warning (_ "TEXT backend-command encountered in Pango backend"))
@@ -293,22 +256,39 @@ grestore\n"
   "\n unknown\n")
 
 (define (url-link url x y)
-  (format #f "~$ ~$ ~$ ~$ (~a) mark_URI"
-	  (car x)
-	  (car y)
-	  (cdr x)
-	  (cdr y)
-	  url))
-
-(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)
-  (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)))
+  (ly:format "~a ~a currentpoint vector_add  ~a ~a currentpoint vector_add (~a) mark_URI"
+	     (car x)
+	     (car y)
+	     (cdr x)
+	     (cdr y)
+	     url))
+
+(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)
+	       ((eq? head 'closepath) 0)
+	       (else 1)))
+	     (args (take rest arity))
+	     )
+
+	  ;; WARNING: this is a vulnerability: a user can output arbitrary PS code here.
+	  (cons (ly:format
+			"~l ~a "
+			args 
+			head)
+		(convert-path-exps (drop rest arity))))
+	'()))
+    
+    
+  (ly:format
+   "gsave currentpoint translate 1 setlinecap ~a setlinewidth\n~l stroke grestore"
+   thickness
+   (convert-path-exps exps)))
+