X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=54ba874d00d5e7efc24b827a557ffc07ff29d404;hb=cf5a32da8dea60a586fb14f7a5ae37417f01c178;hp=1beaef6361563410a48cb270c29bbbc1df815703;hpb=c90fed8a9b1e2e68c4c14300462aff6c7a3a6ffe;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index 1beaef6361..54ba874d00 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -1,48 +1,35 @@
-;;;; output-ps.scm -- implement Scheme output interface for PostScript
+;;;; This file is part of LilyPond, the GNU music typesetter.
 ;;;;
-;;;;  source file of the GNU LilyPond music typesetter
-;;;; 
-;;;; (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;;                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; Copyright (C) 1998--2010 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;;                 Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;;
+;;;; LilyPond is free software: you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation, either version 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;;; 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
-	    bezier-sandwich
-	    char
-	    circle
-	    comment
-	    dashed-line
-	    dashed-slur
-	    dot
-	    draw-line
-	    embedded-ps
-	    named-glyph
-	    no-origin
-	    placebox
-	    polygon
-	    repeat-slash
-	    resetcolor
-	    resetrotatino
-	    round-filled-box
-	    setcolor
-		setrotation
-	    text
-	    zigzag-line))
-
+  #:re-export (quote))
 
 (use-modules (guile)
 	     (ice-9 regex)
+	     (ice-9 optargs)
 	     (srfi srfi-1)
 	     (srfi srfi-13)
 	     (scm framework-ps)
@@ -52,42 +39,20 @@
 ;;;
 
 
-(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
@@ -95,51 +60,90 @@
 
 ;; 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"
+  (ly:format "~l ~4f [ ~4f ~4f ] 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)))
+	    (map number-pair->string4 control-points))
+	  thick
+	  on
+	  off))
 
 (define (dot x y radius)
-  (format #f " ~a draw_dot"
-   (numbers->string4 (list radius x y))))
+  (ly:format " ~4l draw_dot" (list radius x y)))
 
 (define (draw-line thick x1 y1 x2 y2)
-  (format #f "~a ~a ~a ~a ~a draw_line"
-	  (str4 (- x2 x1))
-	  (str4 (- y2 y1))
-	  (str4 x1)
-	  (str4 y1)
-	  (str4 thick)))
+  (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
+	  (- x2 x1) (- y2 y1)
+	  x1 y1 thick))
+
+(define (connected-shape pointlist thick x-scale y-scale connect fill)
+  (ly:format "~a~4f ~4f ~4f ~4f ~a ~a draw_connected_shape"
+    (string-concatenate
+      (map (lambda (x)
+             (apply (if (eq? (length x) 6)
+                        (lambda (x1 x2 x3 x4 x5 x6)
+                          (ly:format "~4f ~4f ~4f ~4f ~4f ~4f 6 "
+                                     x1
+                                     x2
+                                     x3
+                                     x4
+                                     x5
+                                     x6))
+                        (lambda (x1 x2)
+                           (ly:format "~4f ~4f 2 " x1 x2)))
+                    x))
+           (reverse pointlist)))
+      (length pointlist)
+      x-scale
+      y-scale
+      thick
+      (if connect "true" "false")
+      (if fill "true" "false")))
+
+(define (partial-ellipse x-radius y-radius start-angle end-angle thick connect fill)
+  (ly:format "~a ~a ~4f ~4f ~4f ~4f ~4f draw_partial_ellipse"
+        (if fill "true" "false")
+	(if connect "true" "false")
+	x-radius
+	y-radius
+	start-angle
+	end-angle
+	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)
@@ -151,13 +155,12 @@
 
   (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)))
-  
-  (format #f
-	  (if cid?
+      (ly:format "~4f ~4f ~4f ~a~a"
+		 w x y
+		 prefix g)))
+
+  (ly:format
+   (if cid?
 "/~a /CIDFont findresource ~a output-scale div scalefont setfont
 ~a
 ~a print_glyphs"
@@ -173,68 +176,66 @@
 
 
 (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))
+
+			     ;; Backslashes are not valid
+			     ;; file URI path separators.
+			     (ly:string-percent-encode
+			       (ly:string-substitute "\\" "/" 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
-"~a ~a moveto
-~a\n"
-  (str4 x)
-  (str4 y)
-  s))
+(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))
+
+(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)
@@ -242,11 +243,8 @@
 
   (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)))))
-
-;; restore color from stack
-(define (resetcolor) "setrgbcolor\n")
+    (ly:format "~4l draw_repeat_slash"
+	     (list x-width width height))))
 
 
 (define (round-filled-box left right bottom top blotdiam)
@@ -255,68 +253,69 @@
 	 (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)))))
+    (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)
-  (format "gsave ~a translate ~a rotate ~a translate\n"
-    (numbers->string4 (list x y))
-    (number->string ang)
-    (numbers->string4 (list (* -1 x) (* -1 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"))
-  ;; (ly:warning (_ "Arguments: ~a ~a"" font str))
-  
-  (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) " "
-     (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) 
+(define (unknown)
   "\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 #:optional (cap 'round) (join 'round) (fill? #f))
+  (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))))
+	'()))
+
+  (let ((cap-numeric (case cap ((butt) 0) ((round) 1) ((square) 2)))
+	(join-numeric (case join ((miter) 0) ((round) 1) ((bevel) 2))))
+    (ly:format
+     "gsave currentpoint translate
+~a setlinecap ~a setlinejoin ~a setlinewidth
+~l gsave stroke grestore ~a grestore"
+     cap-numeric
+     join-numeric
+     thickness
+     (convert-path-exps exps)
+     (if fill? "fill" ""))))