X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-socket.scm;h=352ff2989dfbbed5ee8d02245d48d94972e322fd;hb=59c80dd7c20f5ae8024a7ab0957726c21704c924;hp=f55cf93bf9238500ad8be4ba60e8dc600c20e27c;hpb=4e510ab3b12fc000637638b42ed4ee548fae5694;p=lilypond.git

diff --git a/scm/output-socket.scm b/scm/output-socket.scm
index f55cf93bf9..352ff2989d 100644
--- a/scm/output-socket.scm
+++ b/scm/output-socket.scm
@@ -1,106 +1,96 @@
+;;;; output-socket.scm
+;;;;
+;;;; implement network-based output (socket) in Scheme
 
 (define-module (scm output-socket)
-  #:re-export (quote)
-  )
+  #:re-export (quote))
 
 (use-modules (guile)
 	     (srfi srfi-1)
 	     (srfi srfi-13)
 	     (lily))
 
-(define (dummy . rest)
-  "")
 
-(for-each
- (lambda (x) 
-   (module-define! (current-module)
-		   x
-		   dummy))
- 
- (ly:all-stencil-expressions))
+(define format ergonomic-simple-format)
 
+(define (event-cause grob)
+  (let*
+    ((cause (ly:grob-property grob 'cause)))
 
-(define-public (draw-line thick x1 y1 x2 y2)
-  (format "drawline ~a ~a ~a ~a ~a"
-	  thick x1 y2 x2 y2))
+    (if (ly:stream-event? cause)
+	cause
+	#f)))
 
-(define-public (polygon xy-coords blot do-fill)
-  (format "polygon ~a ~a ~a"
-	  blot
-	  (if do-fill "True" "False")
-	  (string-join
-	   (map number->string xy-coords))
-  ))
+(define (grob-bbox grob offset)
+  (let*
+    ((x-ext (ly:grob-extent grob grob X))
+     (y-ext (ly:grob-extent grob grob Y))
+     (x (car offset))
+     (y (cdr offset)))
 
-(define-public (named-glyph font glyph)
-  (format "glyphshow ~a \"~a\" ~a \"~a\""
-	  (ly:font-glyph-name-to-charcode font glyph)
-	  (ly:font-name font)
-	  (modified-font-metric-font-scaling font)
-	  glyph
-	  ))
+    (if (interval-empty? x-ext)
+	(set! x-ext '(0 . 0)))
 
-(define-public (placebox x y s) 
-  (format "at ~a ~a ~a\n" x y s))
+    (if (interval-empty? y-ext)
+	(set! y-ext '(0 . 0)))
 
-(define-public (round-filled-box  breapth width depth height blot-diameter)
-  (format "draw_round_box ~a ~a ~a ~a ~a"
-	  breapth width depth height blot-diameter
-	  ))
+    (list (+ x (car x-ext))
+	  (+ y (car y-ext))
+	  (+ x (cdr x-ext))
+	  (+ y (cdr y-ext)))))
 
-(define (music-cause grob)
-  (let*
-      ((cause (ly:grob-property  grob 'cause)))
+(define (escape-string str)
+  (string-regexp-substitute
+    " " "\\040"
+    (string-regexp-substitute "\"" "\\\"" str)))
 
-    (cond
-     ((ly:music? cause) cause)
-     ((ly:grob? cause) (music-cause cause))
-     (else
-      #f))))
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; stencil commands
+;;;
 
-(define (grob-bbox grob offset)
+(define (draw-line thick x1 y1 x2 y2)
+  (format #f "drawline ~a ~a ~a ~a ~a"
+	  thick x1 y2 x2 y2))
+
+(define (grob-cause offset grob)
   (let*
-      ((x-ext (ly:grob-extent grob grob X))
-       (y-ext (ly:grob-extent grob grob Y))
-       (x (car offset))
-       (y (cdr offset))
-       )
-
-    (map (lambda (x)
-	   (if (inf? x) 0.0 x))
-	 
-	 (list (+ x (car x-ext))
-	       (+ y (car y-ext))
-	       (+ x (cdr x-ext))
-	       (+ y (cdr y-ext)))
-    )))
-
-(define-public (no-origin)
+    ((cause (event-cause grob))
+     (tag (if (and cause (integer? (ly:event-property cause 'input-tag)))
+	      (ly:event-property cause 'input-tag)
+	      -1))
+     (name (assoc-get 'name (ly:grob-property grob 'meta))))
+
+    (apply format #f
+	   "cause ~a \"~a\" ~a ~a ~a ~a\n" tag name
+	   (grob-bbox grob offset))))
+
+(define (named-glyph font glyph)
+  (format #f "glyphshow ~a \"~a\" ~a \"~a\""
+	  (ly:font-glyph-name-to-charcode font glyph)
+	  (ly:font-name font)
+	  (modified-font-metric-font-scaling font)
+	  glyph))
+
+(define (no-origin)
   "nocause\n")
 
-(define-public (grob-cause offset grob)
-  (let*
-      ((cause (music-cause grob))
-       (tag (if (and cause (integer? (ly:music-property cause 'input-tag)))
-		(ly:music-property cause 'input-tag)
-		-1))
-       (name (cdr (assoc 'name (ly:grob-property grob 'meta))))
-       )
-    
-    (apply format
-	   (append (list "cause ~a \"~a\" ~a ~a ~a ~a\n"
-			 tag name)
-	   
-		   (grob-bbox grob offset))
-	  )))
-
-
-(define-public (utf-8-string
-		descr
-		string)
-  
-  (format "utf-8 \"~a\" \"~a\"" descr
+(define (placebox x y s)
+  (if (not (string-null? s))
+      (format #f "at ~a ~a ~a\n" x y s)
+      ""))
 
-	  ;; don't want unescaped spaces.
-	  (string-regexp-substitute " " "\\040" string)))
+(define (polygon xy-coords blot do-fill)
+  (format #f "polygon ~a ~a ~a"
+	  blot
+	  (if do-fill "True" "False")
+	  (string-join (map number->string xy-coords))))
 
+(define (round-filled-box breapth width depth height blot-diameter)
+  (format #f "draw_round_box ~a ~a ~a ~a ~a"
+	  breapth width depth height blot-diameter))
+
+(define (utf-8-string descr string)
+  (format #f "utf-8 \"~a\" \"~a\""
+	  (escape-string descr)
+	  ;; don't want unescaped spaces.
+	  (escape-string string)))