X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-ps.scm;h=97909da80cf6b8537ba39fcbc384825156361978;hb=HEAD;hp=da3c25a211ad7127a1baed82e3f8bcc4cec44648;hpb=71b9dde55139dbc7eeefb2ebb95105f573cd33a9;p=lilypond.git

diff --git a/scm/output-ps.scm b/scm/output-ps.scm
index da3c25a211..97909da80c 100644
--- a/scm/output-ps.scm
+++ b/scm/output-ps.scm
@@ -1,247 +1,213 @@
-;;;; 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--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 1998--2015 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
-            ellipse
-	    embedded-ps
-	    named-glyph
-	    no-origin
-            oval
-	    placebox
-	    polygon
-	    repeat-slash
-	    resetcolor
-	    resetrotation
-	    round-filled-box
-	    setcolor
-	    setrotation
-	    text
-	    ))
-
+  #:re-export (quote))
 
 (use-modules (guile)
-	     (ice-9 regex)
-	     (srfi srfi-1)
-	     (srfi srfi-13)
-	     (scm framework-ps)
-	     (lily))
-
-;;; helper functions, not part of output interface
-;;;
-
-
-;; ice-9 format uses a lot of memory
-;; using simple-format almost halves lilypond cell usage
-
-(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)) 
+             (ice-9 regex)
+             (ice-9 optargs)
+             (srfi srfi-1)
+             (srfi srfi-13)
+             (scm framework-ps)
+             (lily))
 
 ;;;
 ;;; Lily output interface, PostScript implementation --- cleanup and docme
 ;;;
 
-;; two beziers
-(define (bezier-sandwich lst thick)
-  (ly:format "~l ~4f draw_bezier_sandwich" 
-	     (map number-pair->string4 lst)
-	  thick))
-
 (define (char font i)
   (ly:format "~a (\\~a) show"
-   (ps-font-command font)
-   (ly:inexact->string i 8)))
+             (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")
+       "true"
+       "false")
    radius thick))
 
+(define (start-group-node attributes)
+  "")
+
+(define (end-group-node)
+  "")
+
 (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)
-  (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)
-  (ly:format " ~4l draw_dot" (list radius x y)))
+             dx
+             dy
+             thick
+             on
+             off
+             phase))
 
 (define (draw-line thick x1 y1 x2 y2)
   (ly:format "~4f ~4f ~4f ~4f ~4f draw_line"
-	  (- x2 x1) (- y2 y1)
-	  x1 y1 thick))
+             (- 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")
+       "true"
+       "false")
    x-radius y-radius thick))
 
 (define (embedded-ps string)
   string)
 
-(define (glyph-string postscript-font-name
-		      size
-		      cid?
-		      w-x-y-named-glyphs)
-
-  (define (glyph-spec w x y g)
+(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 ~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)))
-
+      (ly:format "~4f ~4f ~4f ~a~a" w x y prefix g)))
+  (define (emglyph-spec w h x y g) ; h not used
+    (if (and (= x 0) (= y 0))
+        (ly:format "currentpoint ~a moveto ~4f 0 rmoveto" g w)
+        (ly:format "currentpoint ~4f ~4f rmoveto ~a moveto ~4f 0 rmoveto" x y g w)))
+  (if cid?
+      (ly:format
+       "/~a /CIDFont findresource ~a output-scale div scalefont setfont\n~a\n~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))
+      (if (and (ly:bigpdfs) (string-startswith postscript-font-name "Emmentaler"))
+          (ly:format "/~a-O ~a output-scale div selectfont\n~a"
+                     postscript-font-name size
+                     (string-join (map (lambda (x) (apply emglyph-spec x))
+                                       w-x-y-named-glyphs) "\n"))
+          (ly:format "/~a ~a output-scale div selectfont\n~a\n~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)
   (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))
-		  ""))
-	    ""))
+             (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)
+                             (1+ (cadddr location)))
+                  ""))
+            ""))
       ""))
 
 (define (named-glyph font glyph)
-  (ly:format "~a /~a glyphshow " ;;Why is there a space at the end?
-	     (ps-font-command font)
-	     glyph))
+  (if (and (ly:bigpdfs) (string-startswith (ly:font-file-name font) "emmentaler"))
+      (if (string-endswith (ly:font-file-name font)"-brace")
+          (if (or (string-startswith glyph "brace1") (string-startswith glyph "brace2"))
+              (ly:format "~a ~a" (string-append (ps-font-command font) "-N" ) glyph)
+              (if (or (string-startswith glyph "brace3") (string-startswith glyph "brace4"))
+                  (ly:format "~a ~a" (string-append (ps-font-command font) "-S" ) glyph)
+                  (ly:format "~a ~a" (string-append (ps-font-command font) "-O" ) glyph)))
+          (if (string-startswith glyph "noteheads")
+              (ly:format "~a ~a" (string-append (ps-font-command font) "-N" ) glyph)
+              (if (or (string-startswith glyph "scripts") (string-startswith glyph "clefs"))
+                  (ly:format "~a ~a" (string-append (ps-font-command font) "-S" ) glyph)
+                  (ly:format "~a ~a" (string-append (ps-font-command font) "-O" ) glyph))))
+      (ly:format "~a /~a glyphshow" (ps-font-command font) glyph)))
 
 (define (no-origin)
   "")
 
-(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) 
-  (ly:format
-"~4f ~4f moveto
-~a\n" x 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?)
   (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 beam-thickness (/ beam-thickness slope)))
-	(height (* width slope)))
-    (ly:format "~4l draw_repeat_slash"
-	     (list x-width width height))))
-
+             (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))))
+         (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))))
+                (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)))
+             (list r g b)))
 
 ;; restore color from stack
 (define (resetcolor) "grestore\n")
@@ -249,75 +215,85 @@
 ;; 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))))
+             (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)
   (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 (utf-8-string pango-font-description string)
-  (ly:warning (_ "utf-8-string encountered in PS backend")))
+             (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)
+(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)
-	       (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
-   "1 setlinecap ~a setlinewidth\n~l stroke"
-   thickness
-   (convert-path-exps 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 ~a grestore"
+      cap-numeric
+      join-numeric
+      thickness
+      (convert-path-exps exps)
+      ;; print outline contour only if there is no fill or if
+      ;; contour is explicitly requested with a thickness > 0
+      (cond ((not fill?) "stroke")
+            ((positive? thickness) "gsave stroke grestore fill")
+            (else "fill")))))
+
+
+(define (setscale x y)
+  (ly:format "gsave ~4l scale\n"
+             (list x y)))
+
+(define (resetscale)
+  "grestore\n")