X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=497f197aebd80e4ab8e872bbf976655dbf28ba8d;hb=f390a74b5109a9ceb2af0e0447d931a9f9f38892;hp=d258df8e9e7811ff21cf0b859063c92215549f76;hpb=3f383278764e642a98e15291eae5a6e946beca20;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index d258df8e9e..497f197aeb 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -1,326 +1,301 @@
-;;;; 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--2005 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;;                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; Copyright (C) 1998--2012 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
 
-(debug-enable 'backtrace)
-
 (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
-	    setcolor
-	    resetcolor
-	    named-glyph
-	    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))
-
+  #:re-export (quote))
 
 (use-modules (guile)
 	     (ice-9 regex)
+	     (ice-9 optargs)
 	     (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))
-
-(define (offset-add a b)
-  (cons (+ (car a) (car b))
-	(+ (cdr a) (cdr b))))
-
-(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"))
 
+;; ice-9 format uses a lot of memory
+;; using simple-format almost halves lilypond cell usage
 
-(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")))
+(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)
+  (ly:format "~4l" numpair))
 
 ;;;
 ;;; 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"))
-
 (define (char font i)
-  (string-append 
-   (ps-font-command font) " setfont " 
-   "(\\" (ly:inexact->string i 8) ") show"))
+  (ly:format "~a (\\~a) show"
+   (ps-font-command font)
+   (ly:inexact->string i 8)))
+
+(define (circle radius thick fill)
+  (ly:format
+   "~a ~4f ~4f draw_circle"
+   (if fill
+     "true"
+     "false")
+   radius thick))
+
+(define (start-enclosing-id-node s)
+  "")
 
-;; 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 (end-enclosing-id-node)
+  "")
 
-;; restore color from stack
-(define (resetcolor)
-  (string-append "setrgbcolor\n"))
-
-(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"))
-
-(define (dot x y radius)
-  (string-append
-   " "
-   (ly:numbers->string
-    (list x y radius)) " draw_dot"))
+(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))
 
 (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"))
+  (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
+	  (- x2 x1) (- y2 y1)
+	  x1 y1 thick))
+
+(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)
 
-;; 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 (utf8-string pango-font-description string)
-  (ly:warn "utf8-string encountered in PS backend"))
-
-(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 " g)
-		(format #f " ~a ~a rmoveto /~a glyphshow "
-			x y g))))
-	x-y-named-glyphs))
-  ))
+(define (glyph-string pango-font
+                      postscript-font-name
+		      size
+		      cid?
+		      w-x-y-named-glyphs)
+
+  (define (glyph-spec w h x y g) ; h not used
+    (let ((prefix (if (string? g) "/" "")))
+      (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"
+
+"/~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
-		       ))
-	 (x-ext (ly:grob-extent grob grob X)) 
-	 (y-ext (ly:grob-extent grob grob Y)) 
-	 )
-
-    (if location
-	(format "~a ~a ~a ~a (~a:~a:~a) mark_file_line\n"
-		(+ (car offset) (car x-ext))
-		(+ (cdr offset) (car y-ext))
-		(+ (car offset) (cdr x-ext))
-		(+ (cdr offset) (cdr y-ext))
-		(car location)
-		(cadr location)
-		(caddr location))
-	"")))
-
-;; WTF is this in every backend?
-(define (horizontal-line x1 x2 th)
-  (draw-line th x1 0 x2 0))
-
-(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"))))
+  (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)))
+	     (point-and-click (ly:get-option 'point-and-click)))
+	(if (and
+	     (ly:input-location? music-origin)
+	     (cond ((boolean? point-and-click) point-and-click)
+		   ((symbol? point-and-click)
+		    (ly:in-event-class? cause point-and-click))
+		   (else (any (lambda (t)
+				(ly:in-event-class? cause t))
+			      point-and-click))))
+	    (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)
-  (string-append 
-   (ps-font-command font) " setfont " 
-   "/" glyph " glyphshow "))
+  (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) 
-  (string-append 
-   (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
-   (ly:numbers->string (list wid slope thick))
-   " draw_repeat_slash"))
-
-(define (round-filled-box x y width height blotdiam)
-  (string-append
-   (ly:numbers->string
-    (list x y width height blotdiam)) " draw_round_box"))
-
-(define (text font s)
-;  (ly:warn "TEXT backend-command encountered in Pango backend\nargs: ~a ~a" font str)
-  
-  (let* ((space-length (cdar (ly:text-dimension font " ")))
-	 (space-move (string-append (number->string space-length)
-				    " 0.0 rmoveto "))
-	 (input-enc "latin1")
-	 (out-vec (decode-byte-string input-enc s)))
-
-    (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))))))
-
-;; FIXME: BARF helvetica?
-(define (white-text scale s)
-  (let ((mystring (string-append
-		   "(" s  ") " (number->string scale)
-		   " /Helvetica-Bold "
-		   " draw_white_text")))
-    mystring
-
-
-    ;; FIXME: broken with user install of GS 8.x
-    ""
-    ))
-
-(define (unknown) 
+(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?)
+  (ly:format "~a ~4l ~a ~4f draw_polygon"
+	     (if filled? "true" "false")
+	     points
+	     (- (/ (length points) 2) 1)
+	     blot-diameter))
+
+(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))))
+    (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)
+  (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 (unknown)
   "\n unknown\n")
 
-(define (white-dot x y radius)
-  (string-append
-   " "
-   (ly:numbers->string
-    (list x y radius)) " draw_white_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 (url-link url x y)
+  (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 (page-link page-no x y)
+  (if (number? page-no)
+    (ly:format "~a ~a currentpoint vector_add  ~a ~a currentpoint vector_add ~a mark_page_link"
+	       (car x)
+	       (car y)
+	       (cdr x)
+	       (cdr y)
+	       page-no)
+    ""))
+
+(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)
+		       (else (begin
+			       (ly:warning (_ "unknown line-cap-style: ~S")
+					   (symbol->string cap))
+			       1))))
+	(join-numeric (case join ((miter) 0) ((round) 1) ((bevel) 2)
+			(else (begin
+				(ly:warning (_ "unknown line-join-style: ~S")
+					    (symbol->string join))
+				1)))))
+    (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" ""))))
+
+(define (setscale x y)
+  (ly:format "gsave ~4l scale\n"
+	      (list x y)))
+
+(define (resetscale)
+  "grestore\n")