(beam): add function.

(draw-line): new routine.
(dashed-line): stub; call draw-line
(polygon): new routine.

diff --git a/scm/output-gnome.scm b/scm/output-gnome.scm
index 2d137c27755ff4bb3028c6c8eb32c14bfad0eb1a..94e258ed3becd17822b50a17742ffef335469894 100644 (file)
--- a/scm/output-gnome.scm
+++ b/scm/output-gnome.scm
@@ -280,6 +280,34 @@ lilypond -fgnome input/simple-song.ly
     props))
     
 
+(define (list->offsets accum coords)
+  (if (null? coords)
+      accum
+      (cons (cons (car coords) (cadr coords))
+           (list->offsets accum (cddr coords))
+      )))
+
+(define (polygon coords blotdiameter)
+  (let*
+      ((def (make <gnome-canvas-path-def>))
+       (props (make <gnome-canvas-bpath>
+                  #:parent (canvas-root)
+                  #:fill-color "black"
+                  #:outline-color "black"
+                  #:width-units blotdiameter))
+       (points (list->offsets '() coords))
+       (last-point (car (last-pair points))))
+
+    (reset def)
+    (moveto def (car last-point) (cdr last-point))
+    (for-each (lambda (x)
+               (lineto def (car x) (cdr x))
+               ) points)
+    (closepath def)
+    (set-path-def props def)
+    props))
+    
+
 (define (round-filled-box breapth width depth height blot-diameter)
   ;; FIXME: no rounded corners on rectangle...
   ;; FIXME: blot?